municipal wastewater Articles

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GWT Electrocoagulation Wastewater Treatment – An Application To Sustainably Reuse Textile Wastewater

by Genesis Water Technologies, Inc  (Sep. 20, 2016)

The textile industry is a water consumption intensive industry. Water is utilized for cleaning the raw material, and for the different steps in the textile dyeing process. Due to the effects of water scarcity and stricter environmental regulations, the cost of fresh water utilization has increased worldwide. In addition, the textile industry is ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

Anti-fungal compounds: emerging environmental contaminants

by European Commission, Environment DG  (Sep. 23, 2016)

Azole fungicides are active ingredients in a range of pharmaceutical and personal care products, and are also used in agriculture. This study reviewed the sources, presence and risks of these compounds in the environment, finding evidence of toxic effects on aquatic organisms. The researchers provide directions for future research and warn caution ...

Supplemental Aeration Nearly Eliminates Filamentous Sludge Bulking - Case Study

by Aeration Industries International (AII)  (Sep. 13, 2016)

The Dubai Investments Park Wastewater Treatment plant in the United Arab Emirates faced challenges in their oxidation ditch due to filamentous sludge bulking, resulting in poor sludge settling in the secondary clarifier. Supplemental aeration was needed to eliminate the filamentous sludge bulking. Challenge: The oxidation ditch is treating an ...

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 ...

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 ...

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 ...

CH#831 - Municipal Wastewater Treatment Plant

by BIO-SYSTEMS International  (Apr. 23, 2007)

Introduction The Wastewater Treatment Plant is a rotating biological contactor treatment process preceded by bar screening, grit removal and primary settling. Subsequent to the secondary treatment process, the flow stream enters a chlorine contact tank and then goes to the receiving stream. The program study was started on March 4th. The ...

Cost Trends of MBR Systems for Municipal Wastewater Treatment

by Water Environment Federation (WEF)  (Oct. 13, 2007)

Cost estimates were developed for full-scale (1 and 5 MGD) MBR facilities designed to treat municipal wastewater. These estimates included both capital and operational / maintenance (O&M) costs related to the headworks, MBR process (biological process and membrane system), chlorine disinfection and effluent storage. The costs associated with the ...

Treatment of unpleasant odors in municipal wastewater treatment plants

by IWA Publishing  (May 1, 2010)

The purpose of this paper to present a case study on how to address the odor problem from secondary sources within a municipal wastewater treatment plant (WWTP) by first identifying the locations of the problem and second by evaluating alternative treatment technologies. The WWTP of Chania is a typical 100,000 equivalent inhabitants-facility in a ...

A primer on energy efficiency for municipal water and wastewater utilities

by IWA Publishing  (Jan. 4, 2013)

This primer is concerned with energy use and efficiency of network-based water supply and wastewater treatment in urban areas. It focuses on the supply side of the municipal water cycle, including the extraction, treatment, and distribution of water, and collection and treatment of wastewater-activities which are directly managed by Water and ...

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