Optimizing Routine maintenance Workforce Performance in Drinking water and Wastewater Environments with a CMMS

September 17, 2011 By Leave a Comment

Write-up by Ajax

H2o and wastewater remedy crops are responsible for offering us with safe consuming drinking water. Water is pumped from different resources like rivers and streams and sent to therapy crops before being distributed to customers. The wastewater treatment method plants acquire waste h2o from sewers and deliver it to the therapy plants. Soon after the remedy treatment the h2o is either produced into the oceans or used for irrigation. The operators in equally vegetation have to manage processes and devices to get rid of harmful substances and microorganisms from the h2o.

These drinking water and wastewater plants depend on computers to keep an eye on their equipment, retailer samples, make procedure associated decisions, timetable and file maintenance processes and offer final results. The workforce in these crops is made up of engineers, chemists, mechanics, laboratory technicians, helpers, supervisors and superintendents. It is also really harmful to function in these remedy vegetation due to prevailing hazards such as dangerous gases, malfunctioning gear, etc. H2o and wastewater environments require a maintenance administration system that can supply solutions for asset servicing administration and boost the effectiveness of the workforce for enhanced productiveness.

An Asset Management computer software and CMMS, or Computerized Routine maintenance Management System, is excellent for drinking water and wastewater treatment crops. The software program automates and tracks all upkeep routines and handles the planned and unplanned function buy logistics extremely easily. The CMMS system offers solutions to successfully deal with water/wastewater maintenance perform purchase administration, preventative maintenance and areas and tools administration. It is a adaptable system that demonstrates how to track materials, time and workload. It is compliant with GASB34 and CMOM regulations meant for protecting the setting.

Features of the CMMS System

a) The plan has a preventative maintenance scheduling module that allows you to maneuver the controls and set function order triggers. It also facilitates the management of operate orders the moment the triggers go off. This aids you to conveniently manage options this kind of as what processes are required, how numerous and who should be assigned the obligation, what sort of expertise are needed, and so on.

b) The function buy administration module allows you to track the time, materials, schedules, dates, responsiveness and many other attributes.

c) The CMMS system can interface with the SCADA system so that operators can view forthcoming work orders, open perform orders, and the standing of perform orders together with the background of function orders through the SCADA/HMI display. You can also enter perform order requests, which set up e mail notifications promptly.

d) In addition, integration with SCADA methods makes it possible for the WTP or WWTP to planned PM routines centered on actual gear usage or utilization (ie, runtimes or quantity of starts) as opposed to a calendar only method. They can also employ issue-primarily based servicing management practices based on equipment best operating practices and knowledge.

e) The CMMS plan gives persuasive elements and components administration solutions that support monitor components that are necessary in respective areas at predetermined instances pertaining to any particular machinery or asset.

f) The components management computer software suite in CMMS technique aids to establish, allocate and track substitute areas necessary for repetitive tasks.

g) The net browser enabled architecture supplies full offer chain connectivity as the purchasing module can interface with all inner and exterior methods.

h) The technique also offers the mobile workforce with the versatility to entry and enter information into the system, which allows them accessibility function orders, update notes/asset details, enter the time and submit perform orders via handheld cell devices.

Potent upkeep administration software program with mobile computing improves productivity, restructures administration operations and maintains compliance with federal government rules can increase performance levels for h2o and wastewater environments.

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Biological aerated filter remedy of coking wastewater-BAF, BAF, coking wastewater – drinking water industr

September 16, 2011 By Leave a Comment

Write-up by hi joiney

Overview Coking wastewater is a higher COD large phenol appeal higher ammonia treatment of challenging industrial organic wastewater Given that the 80s of the 20th century a lot more than the domestic coking wastewater by two biochemical approaches extended aeration approach powerful biochemical approaches this sort of as biological iron biological activated carbon and other approaches in which A O approach anaerobic 1 aerobic activated sludge treatment method was greatest but the A O technique greater first expense and working fees 1m3 of water costs about 7 four yuan to offer right with the basic coking enterprises unbearable BAF BiologicalAeratedFilter referred to as BAF is the get in touch with with oxygen in biological Chemical industry Artwork based on the introduction of drinking h2o treatment filter suggestions emerged as an aerobic Membrane Therapy Engineering The simple principle is the principal treatment is based on the primary remedy with granular Filler The growth of biofilm and its attachment to deal with media give total perform to the position of microbial metabolic rate the function of bodily filtration membrane and fill the position of the bodily Absorption and bio reactor multi stage predation in the same unit of pollutant elimination reactor The process has large volumetric loading hydraulic loading huge hydraulic retention time is quick great effluent quality little size significantly less expense in infrastructure power usage and running costs very low This examine will analyze the software of coking wastewater treatment method refractory feasibility of powerful therapy of coking wastewater to seek new techniques one check approaches and products Drinking water sources and drinking water quality one one Test wastewater from Ma On Shan Steel Company coking plant the h2o high quality refers to Table one Table 1 Coking Wastewater Top quality one 2 Experimental Supplies BAF reactors create cylindrical plexiglass column substantial 1 55m diameter 11m volume 14 7L built eight 7L Lytag Filter Media Filter storey one 1m Way to the stream utilizing h2o bottom water plates long handled h2o filter head cloth the upper drainage sintered sand core aeration YL 888 form gasoline Pump 2 BTOO a SOM based mostly present pump h2o Lytag filter parameters diameter of 3 to 5mm the packing density of 89g cm3 broken fee of 07 specific surface area of four 8m2 g porosity 35 the dress in price of 5 three hydrochloric acid soluble rate of five BAF construction indicated in Figure one 1 3 approach and check approaches 1 three 1 Approach Check process shown in Figure two Coking wastewater sedimentation tank by adjusting the pump by the continuous injection of BAF bottom of the skillet soon after the very first filter into the filter layer At the identical time from the pump to the filter layer aeration the water after backwashing pool storage pool efflux Backwash time intervals combined with air and h2o backwash Is first gas recoil 5min and then begin the water pump air and water backwash at the identical time 5min the closing h2o rinse 5 8min Backwash water with reactor ie Figure 2 backwash pool Backwash off the biofilm sludge and other impurities with the backwash h2o back again to the regulator sedimentation tanks sedimentation basins sludge efflux by the set one 3 two operating parameters Air to drinking water ratio of 5 to 1 backwash routine seven 8d the joint air and drinking water backwash air water backwashing strength was five one 8sL s m2 anti washing time of fifteen a 18min hydraulic load 1 05 two 5rn3 m2 h 1 three three H2o Sampling Approach Every 1h respectively and in regulating the sedimentation pool backwash 2 times the sampling sample h2o 200mL and mix the different h2o samples by mixing the sample population sample a total of 6 instances 1200mL this can be as considerably as possible eliminate or avoid a sampling error due to opportunity sampling spot surface area Department beneath 3cm one 4BAF culture biofilm BAF biofilm way of life method with continuous feeding Simple operation is Maanshan Iron amp Steel coke plant will be taken from activated sludge wastewater therapy plant after proper stirring constantly incorporating Taomi Shui including aeration reactor and make steady progress Taomi Shui three days following the cessation of sludge raises drinking water use diluted white inflow of reduced coking wastewater and adding a tiny sum of potassium hydrogen phosphate to enhance phosphorus ranges in wastewater control the reactor mixture was alkaline after twenty days on the progress of the thin filter filter a layer of biofilm Microscopic examination of biofilms below the microscope off the benefits proven in Figure three Figure 4 reveals that the biofilm has many ciliates protozoa such as Paramecium roaming insects beetles and other beans The guidelines of the development of mature biofilm protozoa marks Meanwhile reactor wastewater COD removing efficiency of 70 at this time that the good results of biofilm tradition can be check situations 1 5 Drinking water High quality Analysis Water top quality evaluation strategy primarily based on quot H2o and Wastewater Monitoring Evaluation Technique quot 4th version CODCr was measured with potassium dichromate ammonia was decided by distillation of a Nessler 39 Sreagent pH measured by electrode method phenol was established by four amino antipyrine a immediate method cyanide with isonicotinic acid Spectrophotometric a border wow 2 Final results and Analysis two one hydraulic load and the relationship among the removing of COD Hydraulic load is immediately connected to the size of Sewage In the reactor and provider biofilm contact time The more compact the value of water and the biofilm response time more time the far better CODCr influent focus of 820mg L when BAF underneath various hydraulic loading CODcr coking wastewater elimination result revealed in Figure five BAF can be seen from Figure 5 on the coking wastewater with large natural make a difference removal when the hydraulic load is 05 of a 2m3 m2 quot h time COD Elimination rate attained 90 and the h2o concentration of about CODcr to 220mg L to GB13456 92 nationwide secondary emission expectations two 2 phenol cyanide removing BAF on the coking wastewater phenol cyanide removing in Table two As can be noticed from Table two when the average hydraulic loading 12m3 m2 h time BAF phenol wastewater average removal rates of cyanide up to 980 and 96 and water to the GB13456 92 countries one emission requirements Figure 6BaF 39 on the coking wastewater removal of NH3 N 2 three Elimination of ammonia nitrogen Influent NH3 N was 160mg L when BAF beneath different hydraulic loading on the coking wastewater removing efficiency of NH3 N shown in Figure six Can be witnessed from Figure six BAF coking wastewater removal of NH3 N less effective when the hydraulic loading of 1m3 m2 h time BAF on NH3 N removal effectiveness is only forty five Meanwhile with the hydraulic load development the removal price decreases when the hydraulic load to 25m3 m2 h the effluent concentrations than influent concentration relatively large Generally due to Reactor CODCr NHS N concentration was higher inhibited the metabolic process of nitrifying bacteria in wastewater and with the decomposition of nitrogenous natural and organic make a difference resulting in effluent NH3 N focus 3 Conclusion

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Present Situation of Drinking Water in Pakistan

September 12, 2011 By Leave a Comment

Present situation OF DRINKING WATER in pakistan

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      Currently over 65 percent of Pakistan’s population is considered to have access to safe drinking water.  Huge disparities, however, exist with regard to drinking water coverage between urban and rural areas and provinces/regions.  The quality of the drinking water supply is also poor, with bacterial contamination, arsenic, fluoride and nitrate being the parameters of major concern.  Sustainability of the existing water supply systems is also a major issue in the sector. 

  Inadequate water supply, sanitation and hygiene result in high incidence of water and sanitation related diseases in Pakistan, which in turn increase morbidity and mortality rates and pose a major threat to the survival and development of Pakistani children.  It has been estimated that water, sanitation and hygiene related diseases cost Pakistan economy about Rs.112 billion per year, over Rs.300 million a day, in terms of health costs and lost earning.  Out of this, the cost associated with diarrhea diseases alone is estimated to range from Rs.55 to Rs.80 billion per year. 

SOURCES OF DRINKING WATER

       The main source of drinking water in Pakistan is the hand pump. Hand pumps and motor pumps together provide 65 per cent of household, drinking water. However, various surveys show that the usage of Hand pump is declining where as it is increasing in motor operated pumps both in urban and rural areas. Moreover, the percentage of households depending on lower water sources i.e. deep well, and others either remained unchanged or slightly decreased. Usage of tap water during 2004-05 and 2005-06 remained at the level of 34 percent, Khyber Pakhtoonkhawah province had the best water supply of 47 percent in 2005-06 compared to 44 percent in 2004-05 amongst the provinces in terms of tap water. The vast majority of the population of Punjab (68 percent) has water either from hand pump or motor operated pump and only 5 percent of the population depends on a dug well or other sources ( river, canal or stream). Sindh has remained at almost the same level in terms of tap water (43 percent) in 2005-06 as compared to 44 percent in 2004-05. Balochistan province has shown increase in Tap water from 33 percent in 2004-05 to 36 percent in 2005-06, increase is more evident in rural areas (22 percent to 25 percent) in spite of the fact that in urban areas same has declined. The water supply situation in Khyber Pakhtoonkhawh (KPK) and Balochistan has improved as compared to 2004-05. In these two provinces, 32 and 60 percent of the rural population in 2005-06, as compared to 45 percent & 70 percent respectively in 2004-05, depend on water from a deep well or from river/canal/stream.

Richer households are substantially more likely to have piped water in their household. This relationship is strong in urban areas, but very weak in rural areas. On the other hand the use of deep wells and river/canal/stream is more likely for poor households. A small proportion of households pay for drinking water. Only 24 per cent of households pay for water in urban areas and 12 per cent in rural areas. Since 2004-05, paying segment of population kept increasing in rural and in urban areas.

       The 2005-06 Pakistan Social & Living Standards Measurement Survey (PSLM) recorded information on WHO installed water systems used by the household. It shows that households themselves are the largest single supplier of drinking water, having arranged their own supply in 57 per cent of cases. Provincial and local governments in the form of the LG&RDD, the PHED and other local government bodies, installed water supplies of some 35 percent of households. They installed 92 per cent of all piped water supplies; however the coverage of Local government was least important in Punjab and played the largest role in Balocistan. Households that depend on the poorest supplies also have to travel the furthest for the water. Some 8 percent of households whose drinking water comes from a river, canal, stream or pond travel zero to 0.5 km for the water. Comparing provinces, Punjab is favoured with the best access while Balochistan has the worst, with over half of the households depending on sources outside the home.

RURAL DRINKING WATER POLICY

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Drinking water, as referred to in the Policy, means that the water used for domestic purposes including drinking, cooking, hygiene and other domestic uses.  The term “safe water” refers to the water complying with National Drinking Water Quality Standards.  Access means that at least 45 and 120 liter per capita per day of drinking water is available for rural and urban areas, respectively, within the house or at such a distance that the total time required for reaching the water source, collecting water and returning to home is not more than 30 minutes. 

goals and objectives

The overall goals of the National Drinking Water Policy is to improve the quality of life of people of Pakistan by reducing incidence of death and illness caused by water-borne diseases through ensuring provision of adequate quantity of safe drinking water to the entire population at an affordable cost and in an equitable, efficient and sustainable manner.  The objectives of the Policy are to:

Provide access to safe and sustainable drinking water supply to the entire population of Pakistan by 2025 ;

Ensure  protection and conservation of water resources;

Promote measures for treatment and safety of drinking water;

Encourage community participation and empowerment in planning, implementation, monitoring and operations and maintenance of water supply systems;

Promote cost effective and appropriate technological options for water supply systems;

Increase public awareness about water safety, safe hygiene practices and water conservation;

Enhance capacity of line ministries, departments, agencies and organizations at all levels in planning, implementation and monitoring of water supply programmes and sustainable operation & maintenance of water supply systems;               

Promote public-private-partnership for enhancing access of safe drinking water and sustainable operation & maintenance of water supply systems; and

Promote research and development for enhancing access, effectiveness and sustainability of water supply interventions; and

Promote Inter-sectoral collaboration to maximize the impacts of water supply interventions.

Policy PRINCIPLES

        The key Policy principles for implementation of the Policy are as follows:

Access to safe drinking water is the basic human right of every citizen and that it is the responsibility of the Government to ensure its provision to all citizens;

Water allocation for drinking purposes  is being given priority over other uses;

In order to ensure equitable access, special attention is being given to remove the existing disparities in coverage of safe drinking water and for addressing the needs of the poor and the vulnerable;

Recognizing the fact that women are the main providers of domestic water supply and maintainers of hygienic household environment, their participation in planning, implementation, monitoring and operation & maintenance of water supply systems is being encouraged; and

Responsibilities and resources have been delegated to local authorities to enable them discharge their assigned functions with regard to provision of safe water supply in accordance with Local Bodies Legislation.

Policy guidelines

Increasing Access

New drinking water supply systems are being established and existing systems have been rehabilitated and upgraded in urban as well as rural areas to ensure sustainable access of safe drinking water to the entire population of Pakistan.  In this regard, the Federal, Provincial and AJ&K Governments are being mobilized by providing additional financial resources;

With regard to enhancing the access to safe drinking water, priority is being accorded to un-served and under-served areas, both urban and rural, including Katchi Abadis and slums, disadvantaged areas, salty water zones and those areas where there is shortage of sweet water in underground aquifers;

All public “intermittent” water distribution system is being upgraded phase-wise through supply and demand management and rehabilitation to “continuous water” supply mode;

Sustainability of drinking water supply systems, including sustainability of the sources and infrastructure, is being promoted;

Adequate provisions for operation and maintenance of water supply systems have been ensured; and

Drinking water availability plans have been formulated for rural and urban areas.

Protection and Conservation of Water Resources

Measures have been taken to protect and conserve surface and groundwater resources as well as coastal waters in line with the provisions of the National Environment Policy and Pakistan Environmental Protection Act-1997;

Ambient water quality standards have been developed and enforced for classification of water resources on the basis of their uses and detailed assessments. Phased programmes for clean-up and protection of water resources used for drinking purposes have also been implemented in line with the standards; 

Rain-water-harvesting at household and local levels are being promoted to augment the municipal water supplies as well as for ground water recharge so as to promote sustainability of water sources;

Community management of local water resources and integrated management of water resources are being promoted;

Due consideration is being given to the adverse impacts of climate change in planning and development of drinking water supply systems;

Concept of groundwater for various uses is being regulated;

Environmental impact assessment is being undertaken for all water sector projects to ensure that they do not adversely impact the environment;

Recycling and re-use of water is being encouraged;

Existing water supply systems is being rehabilitated to reduce water losses and wastage;

Water metering is being encouraged to check  indiscriminate use of drinking water supplies; and

Water-saving plumbing equipment and water efficient techniques, devices and appliances are being promoted.

Coordinated Planning and Implementation

Sector-wise approach for planning and implementation is being promoted for water and sanitation sector;

Existing data collection systems such as Pakistan Social and Living Standards Measurement Survey, Multiple Indicator Cluster Survey, Demographic and Health Survey and Population Census are being streamlined and strengthened to ensure availability of authentic information for assessment of the progress with regard to enhancing access to safe water as well as for decision making purposes; 

Drinking water sector management information system have been established at the Federal, Provincial and local levels;

In order to ensure effective utilization of resources and to maximize impacts, inter-sectoral approach has been promoted and implementation of the Policy is being coordinated and integrated with relevant national policies, especially Policies for sanitation, water, environment, health and education sectors;

Adequate allocations are being made for provision of drinking water supply facilities in educational institutions and health care facilities under the education and health sector programmes; and

In order to ensure inter and intra-sectoral coordination, a multi-stakeholder Water and Sanitation Coordination Committee has been established.  Similar committees are being established at the Provincial, District and local levels.

Legislation

Pakistan Safe Drinking Water Act has been enacted to ensure compliance with the National Drinking Water Quality Standards and hold water supply institutions accountable to the general public;

The Drinking Water Quality Standards are being enforced throughout the country and agencies responsible for the provision of water supply to ensure the quality of water supplied by them conforms to these standards;

Water Conservation Act and relevant standards and guidelines are being enacted;

Standards for water-saving plumbing equipment and appliances are being enacted;  and

Legislation for regulation of groundwater exploitation is being enacted.

Drinking Water and Sanitation (under MDGs)

Provision of safe drinking water, adequate sanitation and personal hygiene are vital for the sustainable environmental conditions and reducing the incidence of diarrhea, malaria, trachoma, hepatitis A & B and morbidity levels. Not having access to water and sanitation is a deprivation that threatens life, destroys opportunity and undermines human dignity. Thus, investing in the provision of safe water supply is not only a development oriented strategy in itself, it can also yield other socio-economic benefits in terms of improved health status, quality of labour force and reduced burden-of-disease.  Following are some of the major achievements in the sector:-

Drinking water supply coverage increased from 65 percent (55 rural; 85 urban) to 67.3percent (56.3 rural; 87 urban), during 2005-07.

Sanitation and drainage coverage increased from 42 percent (30 rural; 65 urban) to 43.3 percent (31.3 rural ;63.3 urban) during 2005-07, as elaborated in the following figure:

Coverage of Drinking Water and Sanitation

Under “Clean Drinking Water Initiative (CDWI)’, costing Rs 495 million, one water purification plant (WPP) in each Tehsil of Pakistan, AJK, Gilgit-Baltistan, and FATA installed,

The second project called “Clean Drinking Water for All (CDWA)’ costing Rs 15 billion is under implementation to install one Water Purification Plant (WPP) in each Union Council of Pakistan, AJ&K, Gilgit-Baltistan, and FATA. Spadework including mechanism to implement has been completed. By June, 2007 Rs 6.5 million has been utilized under CDWA, further it shall be extended to village level where filtration plant shall be provided for clean drinking water.

Following are the key issues of the sectors:

Major issues facing the water supply sector are:

Absence of an integrated approach,

Sub-optimal use of water,

Inadequate storage capacity,

Extensive system losses,

Inadequate operation and maintenance and poor cost recovery,

Excessive groundwater pumping without recharge,

Unsafe disposal of wastewater,

Lack of private sector participation,

Inefficient institutional capacities,

Poor linkage among urban and rural water development projects,      

Water pollution including metal contamination generating public health hazards.

Inadequate water and sanitation services to the poor increase their living costs, lower their income earning potential, damage their well-being and make life riskier.

The majority of population in the country is exposed to hazards of drinking unsafe and polluted water and inadequate sanitation.

Continuing urbanization, growing populations and increasing industrialization have increased water consumption and correspondingly generating higher volumes of waste-water and solid-waste.

Most of the waste-water is not treated and the expansion of the urban water supply schemes without treatment facilities (at source) are threats to human health and natural environment.

Community Participation and Empowerment (WATER)

Participation of communities, especially women and children, in planning, implementation, monitoring, operations and maintenance of water supply systems are being encouraged to promote community ownership and empowerment as well as sustainability;

Every public sector project have special allocation for community mobilization;

Community mobilization units are being established in water supply related institutions;

 Special focus has been placed on gender training programs for the staff of water supply related institutions at all levels so that they are able to respond in a sensitive manner to the gender differentiated needs in the drinking water sector; 

Special efforts are being made to recruit and induct women in water supply related institutions and other relevant agencies to ensure that the needs of women are adequately addressed in design and operation & maintenance of water supply systems; and

Representation of women councilors in all review and decision making forums regarding drinking water supply at the District, Tehsil and Union Council levels have been ensured.

Public Awareness

Intensive information, education and communication campaigns are being developed and implemented to promote water safety, water conservation and safe hygiene practices. To this effect, a National Behavioral Change Communication Strategy has been formulated and implemented; and

Hygiene promotion is being made an integral component of all water supply programmes.

Public-Private Partnership

Private entrepreneurship and public-private partnerships for enhancing access to safe drinking water, operation and maintenance of water supply systems, resource mobilization and capacity development are being promoted.  The role of civil society organizations to support government’s efforts in this context are also be encouraged.

Written by GOVPAK
Officer of Government of Pakistan, Establishment Division

Filed Under: regulations on wastewater treatment Tagged With: , , , ,

Tons of released drugs taint US water

September 11, 2011 By Leave a Comment

U.S. manufacturers, including major drugmakers, have legally released at least 271 million pounds of pharmaceuticals into waterways that often provide drinking water — contamination the federal government has consistently overlooked, according to an Associated Press investigation.

Hundreds of active pharmaceutical ingredients are used in a variety of manufacturing, including drugmaking: For example, lithium is used to make ceramics and treat bipolar disorder; nitroglycerin is a heart drug and also used in explosives; copper shows up in everything from pipes to contraceptives.

Federal and industry officials say they don’t know the extent to which pharmaceuticals are released by U.S. manufacturers because no one tracks them — as drugs. But a close analysis of 20 years of federal records found that, in fact, the government unintentionally keeps data on a few, allowing a glimpse of the pharmaceuticals coming from factories.

As part of its ongoing PharmaWater investigation about trace concentrations of pharmaceuticals in drinking water, AP identified 22 compounds that show up on two lists: the EPA monitors them as industrial chemicals that are released into rivers, lakes and other bodies of water under federal pollution laws, while the Food and Drug Administration classifies them as active pharmaceutical ingredients.

The data don’t show precisely how much of the 271 million pounds comes from drugmakers versus other manufacturers; also, the figure is a massive undercount because of the limited federal government tracking.

To date, drugmakers have dismissed the suggestion that their manufacturing contributes significantly to what’s being found in water. Federal drug and water regulators agree.

But some researchers say the lack of required testing amounts to a ‘don’t ask, don’t tell’ policy about whether drugmakers are contributing to water pollution.

“It doesn’t pass the straight-face test to say pharmaceutical manufacturers are not emitting any of the compounds they’re creating,” said Kyla Bennett, who spent 10 years as an EPA enforcement officer before becoming an ecologist and environmental attorney.

Pilot studies in the U.S. and abroad are now confirming those doubts.

Last year, the AP reported that trace amounts of a wide range of pharmaceuticals — including antibiotics, anti-convulsants, mood stabilizers and sex hormones — have been found in American drinking water supplies. Including recent findings in Dallas, Cleveland and Maryland’s Prince George’s and Montgomery counties, pharmaceuticals have been detected in the drinking water of at least 51 million Americans.

Most cities and water providers still do not test. Some scientists say that wherever researchers look, they will find pharma-tainted water.

Consumers are considered the biggest contributors to the contamination. We consume drugs, then excrete what our bodies don’t absorb. Other times, we flush unused drugs down toilets. The AP also found that an estimated 250 million pounds of pharmaceuticals and contaminated packaging are thrown away each year by hospitals and long-term care facilities.

Researchers have found that even extremely diluted concentrations of drugs harm fish, frogs and other aquatic species. Also, researchers report that human cells fail to grow normally in the laboratory when exposed to trace concentrations of certain drugs. Some scientists say they are increasingly concerned that the consumption of combinations of many drugs, even in small amounts, could harm humans over decades.

Utilities say the water is safe. Scientists, doctors and the EPA say there are no confirmed human risks associated with consuming minute concentrations of drugs. But those experts also agree that dangers cannot be ruled out, especially given the emerging research.

___

Two common industrial chemicals that are also pharmaceuticals — the antiseptics phenol and hydrogen peroxide — account for 92 percent of the 271 million pounds identified as coming from drugmakers and other manufacturers. Both can be toxic and both are considered to be ubiquitous in the environment.

However, the list of 22 includes other troubling releases of chemicals that can be used to make drugs and other products: 8 million pounds of the skin bleaching cream hydroquinone, 3 million pounds of nicotine compounds that can be used in quit-smoking patches, 10,000 pounds of the antibiotic tetracycline hydrochloride. Others include treatments for head lice and worms.

Residues are often released into the environment when manufacturing equipment is cleaned.

A small fraction of pharmaceuticals also leach out of landfills where they are dumped. Pharmaceuticals released onto land include the chemo agent fluorouracil, the epilepsy medicine phenytoin and the sedative pentobarbital sodium. The overall amount may be considerable, given the volume of what has been buried — 572 million pounds of the 22 monitored drugs since 1988.

In one case, government data shows that in Columbus, Ohio, pharmaceutical maker Boehringer Ingelheim Roxane Inc. discharged an estimated 2,285 pounds of lithium carbonate — which is considered slightly toxic to aquatic invertebrates and freshwater fish — to a local wastewater treatment plant between 1995 and 2006. Company spokeswoman Marybeth C. McGuire said the pharmaceutical plant, which uses lithium to make drugs for bipolar disorder, has violated no laws or regulations. McGuire said all the lithium discharged, an annual average of 190 pounds, was lost when residues stuck to mixing equipment were washed down the drain.

___

Pharmaceutical company officials point out that active ingredients represent profits, so there’s a huge incentive not to let any escape. They also say extremely strict manufacturing regulations — albeit aimed at other chemicals — help prevent leakage, and that whatever traces may get away are handled by onsite wastewater treatment.

“Manufacturers have to be in compliance with all relevant environmental laws,” said Alan Goldhammer, a scientist and vice president at the industry trade group Pharmaceutical Research and Manufacturers of America.

Goldhammer conceded some drug residues could be released in wastewater, but stressed “it would not cause any environmental issues because it was not a toxic substance at the level that it was being released at.”

Several big drugmakers were asked this simple question: Have you tested wastewater from your plants to find out whether any active pharmaceuticals are escaping, and if so what have you found?

No drugmaker answered directly.

“Based on research that we have reviewed from the past 20 years, pharmaceutical manufacturing facilities are not a significant source of pharmaceuticals that contribute to environmental risk,” GlaxoSmithKline said in a statement.

AstraZeneca spokeswoman Kate Klemas said the company’s manufacturing processes “are designed to avoid, or otherwise minimize the loss of product to the environment” and thus “ensure that any residual losses of pharmaceuticals to the environment that do occur are at levels that would be unlikely to pose a threat to human health or the environment.”

One major manufacturer, Pfizer Inc., acknowledged that it tested some of its wastewater — but outside the United States.

The company’s director of hazard communication and environmental toxicology, Frank Mastrocco, said Pfizer has sampled effluent from some of its foreign drug factories. Without disclosing details, he said the results left Pfizer “confident that the current controls and processes in place at these facilities are adequately protective of human health and the environment.”

It’s not just the industry that isn’t testing.

FDA spokesman Christopher Kelly noted that his agency is not responsible for what comes out on the waste end of drug factories. At the EPA, acting assistant administrator for water Mike Shapiro — whose agency’s Web site says pharmaceutical releases from manufacturing are “well defined and controlled” — did not mention factories as a source of pharmaceutical pollution when asked by the AP how drugs get into drinking water.

“Pharmaceuticals get into water in many ways,” he said in a written statement. “It’s commonly believed the majority come from human and animal excretion. A portion also comes from flushing unused drugs down the toilet or drain; a practice EPA generally discourages.”

His position echoes that of a line of federal drug and water regulators as well as drugmakers, who concluded in the 1990s — before highly sensitive tests now used had been developed — that manufacturing is not a meaningful source of pharmaceuticals in the environment.

Pharmaceutical makers typically are excused from having to submit an environmental review for new products, and the FDA has never rejected a drug application based on potential environmental impact. Also at play are pressures not to delay potentially lifesaving drugs. What’s more, because the EPA hasn’t concluded at what level, if any, pharmaceuticals are bad for the environment or harmful to people, drugmakers almost never have to report the release of pharmaceuticals they produce.

“The government could get a national snapshot of the water if they chose to,” said Jennifer Sass, a senior scientist for the Natural Resources Defense Council, “and it seems logical that we would want to find out what’s coming out of these plants.”

Ajit Ghorpade, an environmental engineer who worked for several major pharmaceutical companies before his current job helping run a wastewater treatment plant, said drugmakers have no impetus to take measurements that the government doesn’t require.

“Obviously nobody wants to spend the time or their dime to prove this,” he said. “It’s like asking me why I don’t drive a hybrid car? Why should I? It’s not required.”

___

After contacting the nation’s leading drugmakers and filing public records requests, the AP found two federal agencies that have tested.

Both the EPA and the U.S. Geological Survey have studies under way comparing sewage at treatment plants that receive wastewater from drugmaking factories against sewage at treatment plants that do not.

Preliminary USGS results, slated for publication later this year, show that treated wastewater from sewage plants serving drug factories had significantly more medicine residues. Data from the EPA study show a disproportionate concentration in wastewater of an antibiotic that a major Michigan factory was producing at the time the samples were taken.

Meanwhile, other researchers recorded concentrations of codeine in the southern reaches of the Delaware River that were at least 10 times higher than the rest of the river.

The scientists from the Delaware River Basin Commission won’t have to look far when they try to track down potential sources later this year. One mile from the sampling site, just off shore of Pennsville, N.J., there’s a pipe that spits out treated wastewater from a municipal plant. The plant accepts sewage from a pharmaceutical factory owned by Siegfried Ltd. The factory makes codeine.

“We have implemented programs to not only reduce the volume of waste materials generated but to minimize the amount of pharmaceutical ingredients in the water,” said Siegfried spokeswoman Rita van Eck.

Another codeine plant, run by Johnson & Johnson subsidiary Noramco Inc., is about seven miles away. A Noramco spokesman acknowledged that the Wilmington, Del., factory had voluntarily tested its wastewater and found codeine in trace concentrations thousands of times greater than what was found in the Delaware River. “The amounts of codeine we measured in the wastewater, prior to releasing it to the City of Wilmington, are not considered to be hazardous to the environment,” said a company spokesman.

In another instance, equipment-cleaning water sent down the drain of an Upsher-Smith Laboratories, Inc. factory in Denver consistently contains traces of warfarin, a blood thinner, according to results obtained under a public records act request. Officials at the company and the Denver Metro Wastewater Reclamation Districtsaid they believe the concentrations are safe.

Warfarin, which also is a common rat poison and pesticide, is so effective at inhibiting growth of aquatic plants and animals it’s actually deliberately introduced to clean plants and tiny aquatic animals from ballast water of ships.

“With regard to wastewater management we are subject to a variety of federal, state and local regulation and oversight,” said Joel Green, Upsher-Smith’s vice president and general counsel. “And we work hard to maintain systems to promote compliance.”

Baylor University professor Bryan Brooks, who has published more than a dozen studies related to pharmaceuticals in the environment, said assurances that drugmakers run clean shops are not enough.

“I have no reason to believe them or not believe them,” he said. “We don’t have peer-reviewed studies to support or not support their claims.”

Written by SopR

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Grey Water for Wastewater Reuse

September 5, 2011 By Leave a Comment

Gray water is wastewater from the dishwasher, and washing machines, sinks, bathtubs, and showers of homes and commercial buildings.

As a plumber Master I have never installed gray water system for home or commercial building, but I I know how they work and you have installed similar systems for water recycling systems, gray. We in the United States so far I am aware of no attempt was made to keep the water in this way for a community or for in a commercial building. I know many homeowners who have homes custom made and added the proper recycling of gray water system to conserve water and help save our environment.

Some time in the near future in the cities of my mind and States are aware of how easy it is to maintain the water with recycled gray water system and will require probably one in every new home built in America. plumbing codes for each state in terms of gray water, and how it can be used or discharged. In the state of Colorado we have a code plumbing “plumbing the International Code” allows the discharge of gray water to the water distribution system and agreed to gray for the flushing of the toilets and urinals for the purposes of irrigation or landscape under the surface of the earth.motor-homes , travel trailers, fifth wheels, vehicles and other recreational use of separate tanks, one for gray water and one for black water (sewage water from water reservoirs). See the image

International law allows two methods to install the plumbing system to recycle gray water. 1. Above the ground with waste, drain and ventilation system. 2. Exchange under the land and build a proper ventilation. There are many other needs plumbing code for the system to recycle gray water right, such as an airtight container of gas, resistance to corrosion, and the tank made of nonabsorbent permanent, filtration, and the valve opened fully, and disinfectants, and dyes vegetable food grade colored, exceeding the pipe tank off the collection is connected indirectly to the sewage system and a few of the code plumbing requirements of the other.See the drawings of the two types of systems to recycle gray water in international law and plumbing.

 

The above is how the drawing will be anchored to the gray water recycling system for toilets instead of water your fresh water management. I hope that This information will be helped to understand how and what is gray water.Take a look at my new book available on Amazon.com called “disorders Flush your plumbing in the toilet” for those who may have the benefit of other health information.

and written by Everett
Master plumber / pipe mechanical

 

Filed Under: Commercial Wastewater, Residential Waste Water Treatment, water resorces Tagged With: , , , ,

NORWECO SINGULAIR WASTEWATER TREATMENT

August 17, 2011 By 2 Comments

By B. Bosshard, PE

NOWECO wastewater has been in operation for over 100 years. During this period, NORWECO has continuously improved wastewater products from basic residential septic tank designs, and then extended aeration systems which have evolved into the NORWECO SINGULAIR line of products. The SINGULAIR line of products has superior wastewater treatment performance, including built-in:

  • Robust effluent filtration
  • Wastewater De-nitrification
  • Chlorination capabilities
  • De-chlorination capabilities
  • UV Disinfection
  • Flow Equalization
  • Wastewater treatment capabilities to U.S. drinking water standards.
  • Low costs
  • 50-year warrantee exchange program

BnB Alternative Septic Solutions, LLC chooses NOWECO SINGULAIR as the top residential wastewater treatment system on the market today. NORWECO is also teamed with GEOFLOW drip irrigation systems and provides integrated wastewater reuse systems. The best wastewater treatment performance, including de-nitrification (NSF 40 certified) sets NORWECO well above competing extended aeration systems.

We consider NORWECO’s demonstrated performance, price and the technical -principles of the SINGULAIR design when rating NORWECO SINGULAIR as the top residential wastewater treatment system on the market today.

General Discussion

To provide a robust wastewater treatment system you need to incorporate the following included in the basic design:

  1. One-day pretreatment
  2. One-day aeration/extended aeration
  3. Flow equalization
  4. Filtration
  5. Tertiary treatment for dentrification
  6. Built-in Chlorination and De-Chlorination

One-day pretreatment

All NORWECO SINGULAIR systems include a minimum of 1-day wastewater pretreatment. Pretreatment is accomplished by requiring a minimum of 1-gallon solids separation tank capacity for each gallon of maximum daily wastewater flow. SINGULAIR designs ensure that larger packaged systems increase solids tank capacity accordingly. The basic SINGULAIR systems are 600, 750, 1,000, 1,250, and 1,500 gallons per day (GPD). Each configuration mandates that pretreatment tank capacity is increased accordingly.

 

One-Day Aeration

Similar to pretreatment tank capacities, minimum aeration tank volumes are increased according to maximum estimated GPD flows. The increase in aeration tank size promotes a minimum of 1-day aeration. Also, as aeration volumes are increased, the number of aerators are increased to ensure adequate aeration capacity (1,000, 1,250, and 1,500 GPD units have two aerators.). NORWECO SINGULAIR utilizes a stirring technology (only moving parts) which minimizes the airflow into the system. The low airflow (2-4 cubic feet per minute (CFM) minimizes odors which are generally associated with extended aeration systems. The aeration flow dissipates into the surrounding soil, which minimizes smells from the systems. Competing systems use excessive air-flow (over 20 CFM) to stir the wastewater. This high airflow rate causes bad odors in the general area of the pipe outlet. Also, when the tank is continuously aerated, there is no possibility for de-nitrification, since the anoxic conditions are required for de-nitrification.

Flow Equalization

The flow equalization is accomplished by maintaining the Bio-Kinetic (BK) module height within +/- one inch. Each 6,000 GPD treatment node consists of four 1500 GPD Singulair units with a 6,000 gallon pre-treatment tank. Surges to the treatment nodes are regulated by the patented BK modules. Each BK module has ¼ inch holes at two elevations which will incorporate any surges and equalize flow between BK modules. The slow throughput promotes equal flow between the four 1,500 GPD units.

Filtration and De-nitrification

The second function of the BK-Module(s) is to filter particulates from the wastewater stream. The BK-Module has a series of contact plates which cause most particulates to precipitate out of the wastewater stream. Also, the BK-Modules are generally operating in the absence of oxygen (anoxic conditions), which promotes the buildup of de-nitrification bacteria. These bacteria eliminate total nitrogen from the wastewater stream. Once again, this patented configuration minimizes surges in the residential wastewater flow rates, which minimizes exceeding of wastewater treatment effluent goals. The NORWECO SINGULAIR aerators cycle 1-hour on and 1-hour off, promoting anoxic conditions for about 50 percent of the time. During the anoxic cycles, de-nitrification of the residential wastewater stream occurs.

 

 

 

Built-in Chlorination and De-Chlorination

Each BK-Module has the built-in capability to insert chlorination and de-chlorination tablet holders. This low-cost residential wastewater disinfection option (about $75) is quite unique. Since the chlorinator is built into the BK-module, wastewater flows are equalized and generally flow through tow ¼ holes. This slow contact rate with the chlorinators ensures reliable chlorination of the residential wastewater stream.

Costs

The NORWECO SINGULAIR systems are distributed locally by authorized NOWECO distributors. Costs (controlled locally by the NORWECO distributor), for a single family residence (up to 600 GPD wastewater flow) range from $3,500 to about $5,000 per unit. The NORWECO SINGULAIR GREEN systems cost approximately $800 to $1,000 more per system, depending on location. The advantage of the SINGULAIR GREEN system is that it can be transported to remote areas and placed with a standard backhoe (weighs approximately 1,000 pounds). Please send us a comment; if you are interested in SINGULAIR or SINGUAIR GREEN systems, we directly service the northern Arizona, southern Nevada and California areas (bosshardeng@aol.com). Please contact us or NORWECO directly at NORWECO.com.

 

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How To Make A Water Well And Other Ideas To conserve Water

July 19, 2011 By 1 Comment

Water Wells and Other Wise Uses of Water by Hardboss, PE.

The ancient civilizations made clever filtration devices. They took huge circular pottery rings with tiny holes in the bottoms and placed them in a cone-shaped depressions, and sealed the bottom of the ring to retain the water collected. They filled the outer area with sand and let rain filter through the sand into the reservoir, then pulled their water up in a bucket from the well they created with the circular ring.  This was adequate to disinfect the water but the knowledge fell into desuetude and was lost.  It makes one wonder how they could lose such a knowledge, but then they lost the ability to make glass for centuries.  In King Tut’s time glass was a big deal.
Europe didn’t have the knowledge to create a clean water supply so they drank no water. Instead they drank thin beer and wine which was safe to drink. While this is a partial solution, who can justify showering in Bud Light?


We could use the ancient filtration  method today if we but were innovative enough to learn from the past.  We have the technology to make huge culvert pipes for huge wells for a community and they could be drilled to make the necessary inlets for water. Smaller pipes can be used for individual wells in the yard with a wishing well over it.  Pretty and functional at the same time. And if there is a shortage of sand, New Mexico can help out: we have it by the deserts full.

A cone shaped depression can’t be that difficult with modern digging machinery.  Voila!  We have a well that filters water enough to drink.  And with modern pumps, retrieving the water for drinking or watering the grounds isn’t difficult.  They can be run off wind power.  A pole with a large fan, a generator and battery found in RV supply places can make electricity, all you do-it-yourself types.

Think of the millions of people who have no clean water  in parts of Mexico, Africa, or Albuquerque in under twenty-nine years.  Water could be managed for people, animals and plant life with no ill effects on the ecology.

Further, here is an idea that would work in humid states.  Make copper piles cold and
collect the condensation of water. Purify it, maybe ozone treat it for better taste and cleanliness, and drink up. Clean rooms with chilled pipes could be manufacturing plants in states with high humidity such as all the gulf states, Michigan, Wisconsin  and all states  surrounding the lakes and the coastal states.  Get innovative for our future water supply now and cash in.

And more thoughts about water supplies.  Trap snow and melt it to feed your personal well using the ancient well model.  Filter and disinfect and bottle it. Maybe the Brita people could help with industrial filters for home and business use. There would be a market for huge filters for the wells when a larger section of the population gets hold of the idea.

The snow melt concept could be used in a city where loaders haul off snow and dump it into huge man-made well systems. Use sand to make traction and not salt on the roads to make the snow better to use. When it melts, the snow will create water to be filtered by the sand and provide decent water. If it needs amending, it can be done just as treated water does in the waste treatment plants around the cities of America.

Bring back rain barrels to water the garden and lawn. A barrel with a cover to keep debris out and a spigot at the bottom that fits a standard hose could be placed a foot off the ground to let gravity feed the water to the grounds.
Water that melts into the yard is fine where it is as it replenishes the aquifer and lawns, gardens and flower beds. Distill used water, rain or reclaimed water or snow for use by humans.  The  future of the planet depends more on water than even oil so get thinking while we still have enough resources to work with.

With that in mind, go really green by installing solar water heaters that gravity feed with a petcock (real word, honest,), for showers/tubs/sinks.  Now hook up “rain barrels,” large catch basins actually with screen covers,  to feed into the solar heaters, along with your conventional source of water.   Include an inline filter for cheap if you like, and reclaim that water from the heavens.

Some municipalities are cool about using gray water for irrigation of residential properties. Individual can drain a washing machine into a drainage system for the lawn or garden. We rerouted out washer to irrigate the vegetable garden.  So far, so good. The soap seems to be  good fertilizer and the plants like warmer water. We also wash in cold water but the house temperature is warmer than the ground water.

Upstairs showers or washers are easy enough to pipe off.  Ground level plumbing might require a pump to move water.  If the water were to be stored to a reservoir to where it needs to go until used, a small pump is a cheap enough investment with water prices going us as demand grows. .  A decent plumber ought to be able to help if you can’t get the hang of it by yourself.  I do believe; however, that a sump pump ought to be able to move water well enough to do the job.

Citizens still need to check local building codes, perhaps petition for special-use permit, if need be. Get the codes changed in town hall meetings, City Council, whatever your locale has for government. Make the world a better, smarter place one piece of real estate or one municipality at a time. All problems are a pie chart of solutions: Slice off a piece until there is no problem left.  That last statement is the Wisdom of the Day, so remember it

If you are serious about being green and doing your part to make the planet’s humans more efficient about managing our water, think about how to make laundry facilities, more green and maybe make a buck or two off the suggestion.  They use huge amounts of water, car washes too.  How can we reclaim and reuse that water?  I bet tanks like gas stations have could be used and the water pumped out for irrigation services in cities.  This would take the pinch off the use of fresh water that the city charges for and even penalizes us for over using.
Get the municipality you live in to require new water users in such industries as a car wash or laundromat to install such tanks for holding the water for such use.  They ought to get a rebate for the water saved with every tanker full they sell back to the city or make it pay as they sell gallons to private individuals for irrigation as a service.  Here is new industry for the private sector; maybe your business? Let’s see corporations ship this concern to the pacific rim!

Attrition eventually makes the area more efficient and conservationist forever.   Retrofitting could be done and the city ought to give tax breaks to individuals who make their businesses water efficient.  Restaurants, gyms with shower facilities, anyone who uses lots of clean water can qualify to be smart.  Suggest it locally.

Written by Hardboss PE

Filed Under: water resorces Tagged With: , , , , , , , , ,

Residential Water Heater Services

July 14, 2011 By 1 Comment

Maintaining a home can be very expensive. From running the electric to running the water, it all adds up. One of the most important and expensive utilities in the home is heating water. Having a proper hot water heater effects all different sorts of daily life. It is a fact than 10% of all utilities are spent on heating water, that’s why having a proper residential water heating service is important. And a residential water heating service is there to help you figure out and choose exactly what is right for your home.

One of the new services that are available is the option of having a tank-less hot water heater. This tank-less option is also called an “on demand” system, since the water is heated instantaneously as or when it is needed. There is no need for a tank to keep hot water stored and waiting to be used. The water is heated to the desired temperature at the exact moment it is needed.

Another benefit of a residential water heating service is the actual service they provide.

The water heater company is capable of not only installing the water heater into your home but maintaining it as well, fixing or repairing when needed. And if need be they are also capable of replacing the system altogether. They can do this quickly and efficiently because a home can be drastically disrupted with a lack of hot water.

One other benefit that is available nowadays for your water heating system is the availability of an eco friendly system. These new eco friendly systems are available to make heating your water a lot less expensive while also making them more efficient. These new eco friendly systems are available in both electric and gas models and both can save your home massive amount of money over time, as well as being beneficial for the environment which is always good in this day and age.

Over time any utility will get expensive, the right measures can always be taken to diminish those costs.

One way to ensure this is by finding the right water heating service for you. Whether the system for you is electric or gas, eco friendly or not. There are many different types and water heating services are there to help you figure out which one is right for your home and which one will be the most cost efficient for you.

Water Heating Durham

Plumbing Contractors Cary

Gives input and advice on water heater services.

Filed Under: Denitrification Of Residential Water Tagged With: , , , , , , , , ,

Ecological building rain water ICAST reuse treatment system – water industries – Marble texture manu

July 14, 2011 By 1 Comment

Article by jekky

Ecological construction techniques used ICAST rain sewage treatment, a high degree of device integration, infrastructure cost savings, continuous operation, in order to ensure that within a relatively short residence time of the desired treatment effect, by adding the sludge return the system to return the mixture NH3-N and oxygen in the water area using the original carbon and denitrification to improve nitrogen removal, and handle large amount.

1.3 Reuse System Ecological construction stormwater treatment pond water by regulating biological treatment tank into the ICAST sterilized by filtering the water (the water quality to water reuse standards) for the reuse system, called the water reuse system usually by pipeline, pumps and nozzles and other components. Reuse of water through the system platform can be used to irrigate green eco-roof construction, landscape pond water, clean roads.

2 Control and Monitoring System Use of the wastewater reuse treatment plant, in the literature [6] based on the processing operation and monitoring of water quality control system.

2.1 of contents A, ICAST processes through PLC and computer control. Including the control into the pump, blower, filter pumps, sludge pumps and other equipment back to the start, run and stop and not normal operation of the alarm.

B, monitoring wastewater reuse treatment of the whole process, monitoring key indicators of access to water CODcr, NH3-N and turbidity; ICAST biochemical pool of DO and pH values; When the process stage of water quality indicators fail intended target, by the computer through the timely adjustment of operating parameters such as PLC.

C, of sewage treatment process reuse of data collection and storage time, at any time as needed to check a variety of equipment failure history records and instruments, and some of the historical data analysis.

2.2 design principles A, in order to target water quality monitoring and controlInto the automatic control system in addition to monitoring, effluent water quality, the response should ICAST pool of DO and pH value for online monitoring records, by monitoring the data to determine reaction conditions and treatment tanks biochemical relationship between water and use it as self-control interface based on the ICAST in response to aeration tank operation and size adjustment, output water quality can be achieved in the water reuse standards.

B, practicality and economy Automatic control system imported and domestically produced equipment and electrical integration, design and programming of their major equipment automatically, under the premise of ensuring a reliable cost as much as possible. Through the selection of equipment on the system can make the same type of system cost than domestic prices substantially lower than that.

C, security and reliability Partly controlled system control failure alarm and fault handling. From design to equipment selection and installation of construction and operation and maintenance should be possible to ensure system safety and reliability.

2.3 automation hardware and softwareControl system I / O capacity of about 38 total points, the present programmable controller (PLC) There are many types, such as Omron’s CPM2A series, Siemens S7200 series and S7300 series, A-BRockwell companies and Mitsubishi’s products. Selection based on experience and compare the characteristics of the equipment, Siemens and AB PLC good quality small and medium sized companies, but more expensive in terms of the system; Omron and Mitsubishi PLC quality and price advantage of small clear, its cost is higher, and in the wider application of the same industry; taking into consideration the PC configuration software to choose from, so choose CPM2A Omron’s family. It has a processing speed can meet the system requirements, basic instruction rich program is easy to modify, maintain the workload is small, the network configuration easy and so on.

Monitoring software is based on Delphi programming software, the software makes the system maintenance staff in a very short period of time to master, the performance of many enterprises in China has been applied to testing. In addition, the software is easy access to technical support, the performance of the system to satisfy the needs of the price than other types of software with the lower.

2.4 Automation Technology 2.4.1 Process Controls Turn on the computer, access-controlled test interface, enter the password and related original settings and started to run, to achieve process control automation.

Ecological building rain water collection wells from an enhanced delivery pump to adjust pool, regulation pool under the control of liquid level signal to open the time the pump stops, adjusting pool opens when the pump low, high when the pump stops. Precipitated by adjusting pool water treatment, transport to the ICAST by the pump into the biochemical pool pump into the pool under the regulation and biochemical pool of liquid running along the signal and control equipment. Treated by continuous ICAST is artesian water from settling tank to remove small particles, and then overflow to the middle pool. The middle of the pool filter pump water from the transport to the micro-filters, the filter is sent to disinfect pool water disinfectant shall remain in the water for some time. Which by the middle of pool water filtration pump control, high open pumps, low pumping; dosing pump and filter pump linkage.

2.4.2 Control System Structure and CharacteristicsAutomatic control system based on common forms of domestic and foreign, the system uses PC + PLC structure, with the conventional direct digital control of intelligent devices, compared with less investment, long life, easy maintenance and low failure rate and so on.

Site controller responsible for all equipment and process data acquisition and control and parameter adjustment, by the PLC through the PLC to complete the function and the pretreated bear incident communications with the control room computer. CRT display and the control room can provide fault alarm, some parameter settings, a remote human intervention operations and data storage and so on. Control room is usually a Taiwanese industrial computer to complete, the management plane functions than with on-site operations, it also has data processing, report printing.

2.4.3 Automatic system composition and functionsAccording to geographical location and technology, function, the system composed by the control room and field control station, control room and the adjacent processing plant, recycling system, fountain pools and residential buildings connected to the landscape. The system can be achieved through the computer interface, data acquisition, image display, parameter modification, storage and printing functions, specifically by the four major components.

A, flow chart dynamic display Flow chart of five, including the general process flow diagram, water part of the flow chart, flow chart of biochemical treatment of some of the middle pool and treatment part of the flow chart of the secondary settling tank, filtration and disinfection part of flow chart dosing. This 5 flow chart, pipes and devices can dynamically display the current working status. Equipment failure and can use sound and light alarm for proper disposal.

B, real-time monitoring and display relevant data

By extending the analog module can be correspondingly

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Cleaning Waste Water

July 14, 2011 By 1 Comment

A lot of changes happen in time including the progression of societies and the improvement of procedures for our survival. The effective gathering and recycling of water is necessary for water has always been vital to our existence. When it comes to the technology of waste water management, there have been a lot of changes through the years.

There were waste water management systems in ancient times but what we have today are more modern not to mention more effective. We are able to enjoy a better understanding of effective systems thanks to the way our forefathers treated water before. This article will allow you to be in the know when it comes to the basics of modern waste water management.

Waste water is treated and cleaned out of the harmful contaminants that it contains through the process of waste water management or sewage treatment. Water is used daily and this results to waste water. A lot of waste water actually comes from household sewage and industrial operators.

It is waste water management that is meant to satisfy the need for sanitation for the benefit of public health. When it comes to diseases like cholera and typhoid fever, contaminated water is mostly to blame. Also meant for the general health of the society, we resort to waste water management procedures to protect our water resources considering how water is vital in our lives.

Through the years, our water supply has dwindled and this is why we need to recycle it as much as possible. When it comes to the water supply around the world, the United Nations World Water development report back in 2003 predicted a 30 to 40% decrease for the next 20 years. When these statistics come into play, crucial are more effective ways to manage waste water.

In terms of waste water management, how does it work? In this case, you will be dealing with four fundamental steps although the location of the treatment facility is pretty important. With regard to stage one, it is the pre-treatment process.

The water is strained, screened, and analyzed in this stage. In this case, the waste water may contain debris like leaves, branches, and stones and these should be removed. There are times when the waste water originates from an industrial factory and in this case, the pre-treatment process removes the grease and lubricants that were combined with the water.

After going through the pre-treatment process, the waste water is analyzed and then it heads off to primary treatment. Normally, the waste water sediments sink at the bottom of primary clarifier tanks and the grease and oils float. After this comes the removal of the sediments at the bottom and the floating grease and then chemicals will be used to treat the water for any leftover bacteria.

For the third step in waste water management, they make sure that the water is safe, safe enough to release into designated grounds and other natural bodies of water. The water will contain harmful microorganisms and the introduction of chemicals to remove them is the third stage. In terms of waste water management, the fourth stage is disinfection.

A lot of people resort to the usage of chlorine especially when the goal is to produce clean potable water. People are still looking for methods by which waste water can be managed and this is because we have a lot of environmental issues to deal with today. We have an effective system today but people are hoping for greener and more practical methods that can be used to deal with water.

Further your knowledge on water tanks at septic systems.Thank you for reading about wastewater treatment systems and water tanks.

wastewater, water, mbbr, wastewater treatment, wastewater treatment system, waste water treatment, wastewater treatment systems, wastewater, waste water, water treatment, water treatment systems, ifas www.bnm-us.com PuraMax Moving Bed Biological Reactor MBBR Designed to achieve a high quality effluent within a small overall footprint, the PuraMax System is an attached growth activated sludge process. The PuraMax Moving Bed Biological Reactor MBBR System is a cost effective attached growth activated sludge process Following a septic tank, the aeration stage consists of recycled plastic media that provide an extended surface contact area for bacteria to attach. An aeration grid located at the bottom of the reactor supplies oxygen to the biofilm, along with the mixing energy required to keep the plastic bio-carriers suspended and fully mixed. The biosolids are naturally sloughed off the media, which are removed in a clarifier. Total nitrogen reduction can be achieved with recirculation or with a post-anoxic stage with carbon addition. The PuraMax is an excellent solution for high strength and industrial wastes. The process is suitable for IFAS configurations and retrofit of existing systems. The PuraMax System is engineered specifically for municipal, decentralized or on-site community and commercial wastewater treatment applications, where cost effective, simple, reliable operation and maintenance are required. Customers interested in learning more about the new PuraMax …
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