municipal wastewater Articles

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Biggest Water Treatment Concerns for Communities/Municipalities and the Ways of Addressing These Issues

by Genesis Water Technologies, Inc  (Jul. 1, 2016)

Water treatment is currently one of the terms that fall within the category of emergency quite well. About 1.4 billion people all over the globe are dealing with varying levels of water scarcity, and this is increasing at alarming levels. Not just the treatment, higher emphasis is being given on finding the alternative water sources as well. ...

Pyrethroid insecticides in municipal wastewater

by John Wiley & Sons, Ltd.  (Jul. 26, 2013)

Pyrethroids are widely used insecticides, but there is minimal published information on their presence in municipal wastewater in the United States. Pyrethroids in wastewater from the Sacramento, California area, consisted of permethrin, bifenthrin, cypermethrin, and cyhalothrin with a combined concentration of 200–500 ng/L. Sampling within the ...

Municipal wastewater treatment plant

by NovaTec Consultants Inc.  (Oct. 10, 2012)

Location: Kitimat, B.C. Owner: Kitimaat Village Council Description: Conceptual and detail process design of a 300 m3/d rotating biological contactor treatment plant incorporating primary solids removal, flow equalization, influent pumping, secondary clarification, sludge holding tank, control building, treated effluent pump station, and a ...

Wastewater treatment for a municipality

by TIA – Technologies for Industrial-Wastewater Treatment GmbH  (Oct. 24, 2012)

Description of the plant At first, wastewater is pre-treated by a combinated sand and fat trap before further treatment is affected by a special screen. The accruing particles are collected in anti-septic plastic bags to avoid any personal contact because of hygienic reasons. Based on the high varying hydraulic amount of wastewater, an aerated ...

The MIEX® Technology for Municipal Wastewater Treatment

by IXOM Watercare  (Oct. 1, 2006)

The MIEX® Technology is designed for the removal of dissolved organic carbon (DOC). Until recently, the commercial application of the MIEX® Technology has been limited the treatment of potable water from surface or ground water bodies. The MIEX® Process is now being evaluated for application in municipal wastewater applications. An example of ...

Cellulose recovery from municipal wastewater

by Cellulose Assisted Dewatering of Sludge (CADoS)  (Nov. 3, 2015)

During Aquatech 2015 the Dutch technology developer Brightwork set in the spotlight the recovery of cellulose from waste water. The project Cellulose Assisted Dewatering of Sludge (CADoS) aims at separating cellulose fibres from toilet paper from waste water using finescreening technology. After separation the fibres serve as a filter aid for ...

Wastewater Treatment Municipality Of Saint-Claude

by H2O Innovation  (Jun. 17, 2010)

In Quebec, the municipalities must make sure that their rejections of sewerachieve the goals applied to the receiving medium. The Rotating BiologicalReactor (RBR), developed by the biological processes division of H2OInnovation, showed its effectiveness during more than one year testingproject, which contribute to the obtaining of the Standard ...

Municipal Wastewater Treatment - Prichard, Alabama

by TenCate - Geotube  (Sep. 12, 2013)

TenCate  develops and produces materials that function to increase performance, reduce costs, and deliver measurable results by working with our customers to provide advanced solutions. THE CHALLENGE Prichard AL is a town of about 30.000 people north of Mobile. AL Paul David, the Sewer Board Superintendent, oversees the contract ...

Sustainable Treatment and Reuse of Municipal Wastewater

by IWA Publishing  (Mar. 1, 2012)

The uncontrolled disposal to the environment of municipal, industrial and agricultural liquid, solid and gaseous wastes constitutes one of the most serious threats to the sustainability of the human race by contaminating water sources, land and air, and by its potential contribution to global warming. With increasing population and economic ...

Simultaneous nitrification, denitrification and phosphorus removal (SNDPR) in a full-scale water reclamation plant located in warm climate

by IWA Publishing  (May 5, 2016)

The combination of simultaneous nitrification-denitrification (SND) with enhanced biological phosphorus removal (EBPR) provides a more efficient and economically viable option for nutrient removal from municipal wastewater compared to conventional two-step nitrification-denitrification. This study analyzed the nutrients (N and P) profiles in a ...

Recycling of Municipal Wastes in Agriculture. II. Irrigation of Corn with Treated Municipal Wastewater

Abstract Restriction of available water observed in the last years in arid or semiarid areas forces the planners to consider any source of water for irrigation. The purpose of this paper was to investigate the suitability of wastewater produced by the treatment plant of the city of Larissa, Central Greece for irrigation of corn. With a three ...

Full scale municipal implementations of the Agar IFAS process for municipal wastewater treatment

by Aqwise Wise Water Technologies  (Oct. 5, 2009)

Wastewater treatment plant retrofits worldwide are motivated by two main developments: a. Changes in effluent quality regulations, either to more stringent BOD/TSS requirements, or to include nutrient (N and P) removal b. Increase in flows to existing plants, due to either population growth or to expansion of sewerage systems One process ...

Municipal Wastewater Pump Station Design Problems and Solutions

by Water Environment Federation (WEF)  (Oct. 21, 2006)

The growth of the Northern Virginia Area around Washington D.C. has resulted in the requirement for numerous new wastewater pumping stations and the upgrade and expansion of existing pump stations. This paper presents practical problems and solutions associated with the following pump station design issues: 1.) Concrete Corrosion Protection, 2.) ...

Integrated Anaerobic and Aerobic Processes for Treatment of Municipal Wastewater

by Water Environment Federation (WEF)  (Oct. 22, 2006)

ABSTRACTIn this study, integrated anaerobic and aerobic treatment processes for municipal wastewater treatment were investigated for its feasibility to replace the existing conventional activated sludge process. Three types of anaerobic systems − anaerobic sludge blanket, anaerobic sequencing batch reactor and anaerobic filter, as the ...

Otis, MA municipal wastewater treatment plant information

by Aquapoint  (Mar. 17, 2008)

Small and rural communities generally find it difficult to assemble the resources to develop a traditional wastewater infrastructure.  Yet, without infrastructure it is difficult to enhance property values and economic development.  Decentralized wastewater treatment systems represent a low cost, low impact and high benefit ...

Stability of alumina, ceria, and silica nanoparticles in municipal wastewater

by IWA Publishing  (Nov. 18, 2014)

Inorganic oxide nanoparticles (NPs) are used in semiconductor manufacturing operations such as wafer chemical–mechanical planarization (CMP). Understanding the stability of NPs in municipal wastewater is essential for the evaluation of the fate of NPs released to municipal wastewater treatment plants (WWTPs). This study aimed to evaluate ...

Reduction of TTHM and endocrine disrupting compounds in municipal wastewater

The US Geological Service and Environmental Protection Agency have been monitoring the increasing levels of persistent organic pollutants (POPs) in freshwater streams, aquifers, and off-shore coastal waters for the past decade, with the primary identified chemicals being residuals from pharmaceuticals, and petroleum-based fertilizers, herbicides, ...

Treatment of municipal wastewater by membrane bioreactor: a pilot study

by Inderscience Publishers  (Jul. 20, 2009)

The operational performance of a submerged hollow fibre Membrane Bio-Reactor (MBR) for treatment of municipal wastewater on pilot scale was investigated. The experimental results indicated that the removal efficiency for SS, COD, NH4-N, turbidity, bacterium, iron (Fe2+) and Manganese (Mn2+) was 100%, 94.5%, 98.3%, 99.7%, lg6, 99%, 92.3%, ...

Pretreatment of Municipal Wastewater by Enhanced Chemical Coagulation

by University of Tehran  (Mar. 1, 2007)

The efficiency of existing municipal wastewater treatment plants has been affected by the increase of incoming organic load caused by the expansions in developing countries. In the present investigation, the effect of Chemically Enhanced Primary Treatment (CEPT) process was studied on the enhancement efficiency of a municipal wastewater ...

Drivers for and against municipal wastewater recycling: a review

by IWA Publishing  (Sep. 26, 2015)

The reclamation, treatment and reuse of municipal wastewater can provide important environmental benefits. In this paper, 25 studies on this topic were reviewed and it was found that there are many (>150) different drivers acting for and against wastewater recycling. To deal with the challenge of comparing studies which entailed different ...

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