municipal wastewater operation Articles

  • Industrial Wastewater Treatment - Paint/Pigment Dye Industry

    Innovation in Industrial Wastewater Treatment - Sustainable Water Reuse Strategies Applied to the Paint/Pigment Dye Industry Introduction The paint/pigment industry is a large consumer of process and wash water to be used in various water based paint pigment products. The water usage for this industry is estimated at 75-85 million gallons per day, with ...

  • Wastewater treatment for a municipality

    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 mixing and balancing reactor is ...

  • Investment and operating costs of municipal wastewater treatment plants in China

    The municipal wastewater treatment will continue to be intensified in China due to the economic development and the poor water quality. Within four years, the number of wastewater treatment plants has doubled. Before 2000, mostly plants without nitrogen and phosphorous removal were built. Since Chinese laws require strict effluent qualities, many plants were built with ...


    By Inderscience Publishers

  • Operational energy performance assessment system of municipal wastewater treatment plants

    Based on the statistical analysis of operational energy consumption and its influential factors from data of 599 Chinese WWTPs in 2006, it is noticed that the most influential factors include treatment technology adopted, treated sewage amount, removed pollutants amount, etc. Using the conclusion above, this paper sets up an integrated system of operational energy performance assessment for ...


    By IWA Publishing

  • Wastewater Treatment Municipality Of Saint-Claude

    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 Technology (CF-1) certification allowed by the Quebec ...


    By H2O Innovation

  • Cost Trends of MBR Systems for Municipal Wastewater Treatment

    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 membrane systems were developed from budgetary cost ...

  • Otis, MA municipal wastewater treatment plant information

    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 solution.  Employing modular systems whose processes are ...


    By Aquapoint

  • Municipal Wastewater Treatment - Prichard, Alabama - Case Study

    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 management of two (21 ...

  • Alternate anoxic/aerobic operation for nitrogen removal in a membrane bioreactor for municipal wastewater treatment

    A large pilot-scale membrane bioreactor (MBR) with a conventional denitrification/nitrification scheme for municipal wastewater treatment has been run for one year under two different aeration strategies in the oxidation/nitrification compartment. During the first five months air supply was provided according to the dissolved-oxygen set-point and the system run as a conventional ...


    By IWA Publishing

  • Operating costs for reducing total emission loads of key pollutants in municipal wastewater treatment plants in China

    Total emission load reduction of COD, NH4-N, TN, and TP is the key measure in controlling water pollution and eutrophication. Municipal wastewater treatment plants (MWWTPs) are major contributors in lowering energy consumption and reducing pollutant discharge. The flow-based operating costs have not been directly established to relate to costs of pollutant reduction based on an investigation of ...


    By IWA Publishing

  • Performance of a biofilter system with agave fiber filter media for municipal wastewater treatment

    Agave plants grow in semi-arid regions and are used for mescal production. However, agave fiber by-products are considered waste materials. Thus, we tested agave fiber as a filter media and biofilm material carrier for removing pollutants from municipal wastewater. Three laboratory-scale biofiltration reactors were used in two trials with five hydraulic loading rates (HLRs = 0.27, 0.54, ...


    By IWA Publishing

  • Upgrading of decentralized ponds for municipal wastewater treatment and restricted reuse

    Upgrading of a pond system for municipal wastewater treatment in a decentralized area is evaluated. The pond was constructed for the treatment of 63 m3/d. Currently it receives 83 m3/d, therefore poor treatment efficiency was recorded. An expansion of 1.6 times the present land area was required. In addition to construction, operation and maintenance were required to meet the permissible limits. ...


    By IWA Publishing

  • Multi-stage constructed wetland systems for municipal wastewater treatment

    In the present paper the detailed design and performances of two municipal wastewater treatment plants, a four-stage constructed wetlands (CW) system located in the city of Dicomano (about 3,500 inhabitants) in Italy, and a three-stage CW system for the village of Chorfech (about 500 inhabitants) in Tunisia, are presented. The obtained results demonstrate that multi-stage CWs provide an ...


    By IWA Publishing

  • Municipal WWTP Digester Cleanout - Cambridge, Ohio (Wastewater Treatment) - Case Study

    THE CHALLENGE Cambridge, OH is a small town of 13,000 residents. Tim Wheatley, Superintendent of the Water Pollution Control Center operates a 3 MGD activated sludge plant at about 80% of its capacity. The plant recently switched from anaerobic digesters to an aerobic digester. They had been dewatering Iheir sludge on four vacuum assisted drying beds housed in a large shed. Alternatively, ...

  • Small-bioreactor platform technology as a municipal wastewater additive treatment

    The bioaugmentation treatment approach presents both an economical and environmentally friendly solution for wastewater treatment. However, the use of exogenous bacterial cultures presents several limitations: negative interaction between microorganisms and adaptation to new physical and chemical composite environment. These selective forces create a significant challenge for the introduced ...


    By IWA Publishing

  • Reconsidering rotating biological contactors as an option for municipal wastewater treatment

    There are many domestic wastewater treatment processes in use today. Generally, they are all biological systems and they may be broadly categorized as either fixed film processes or suspended growth processes. During the 1970s and early 1980s, the rotating biological contactor process (RBC), a particularly efficient fixed film process, became popular. However, the primary manufacturer of RBCs in ...


    By Total Water Solutions (TWS)

  • Rapid Monitoring of Municipal Wastewater Primary Effluent - Case Study

    The primary effluent of a Municipal Wastewater Treatment Plant (MWWTP) is monitored to understand organic loading going to the next stage of treatment, the activated sludge process. This process removes organics via consumption by microorganisms living in the sludge. Knowing the composition of incoming primary effluent is important to prevent organic overloading and improve process optimization ...


    By MANTECH Inc.

  • Oil Industry Operation Wastewater Treatment Summaries

    Oil Industry Operation Wastewater Treatment Wastewater on a self-contained drilling platform comes from several sources. The following examples are samples obtained from the seven oil-drilling platforms off of the coast of Nigeria. The first platform had samples from the industrial laundry, ...


    By Integrated Engineers Inc.

  • Municipal Wastewater Treatment Plant - Moss Creek Plantation, Bluffton, SC (Wastewater Treatment) - Case Study

    THE CHALLENGE Moss Creek Plantation is a picture-perfect golf course community of 980 residences in the low country of South Carolina. The Moss Creek Owners Association (MCA) owns and operates Water Oak Utility, which treats about 450,000 gallons per day. The utility also contracts with Beaufort-Jasper County to treat some of their waste stream. James Buckner, Utility Operations Manager, ...

  • Municipal WWTP, Spain: A Case Study

    Overview The oxidation ditch configuration based wastewater treatment plant in Spain required a quick upgrade in order to comply with new inflow and quality requirements. Requirements The existing plant was operating with two parallel Oxidation Ditch modules with a flow rate of 600 m³/d each, and exhibited very poor nitrification capacity. The plant was to be ...

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