Municipal Water Articles

  • Eliminating sludge islands in your wastewater lagoon

    Old municipal and industrial wastewater lagoons have the tendency to build islands of sludge at various locations around the lagoon. It is most common for older lagoons to build such islands wherever wastewater enters the lagoons. Of course, this is because the solids entering the lagoon have enough weight to fall out of the water as flow velocity is reduced, so the solids pile up just after ...


    By Reliant Water Technologies

  • Municipal Wastewater

    Municipal wastewater namely sewage is generated by residential, institutional, commercial and industrial establishments. It includes household waste liquid from toilets,baths,showers,kitchens, and sinks drained into sewers. In many areas, sewage also includes liquid waste from industry and commerce. The separation and draining of household waste into greywater and blackwater is becoming more ...


    By Horizon Water Co., Ltd.

  • Removing VOCs from Municipal Water Supply - Case Study

    QED E-Z Tray® Air Strippers Removing Volatile Compounds in Cheyenne’s Drinking Water The U.S. Army Corps of Engineers (USACE) – Omaha District has funded the design and construction of a new groundwater treatment plant in Cheyenne, Wyoming to treat groundwater from the city’s Borie well field.  This important groundwater supply was apparently ...


    By QED Environmental Systems

  • Identification of monthly municipal water demand system based on autoregressive integrated moving average model tuned by particle swarm optimization

    In this paper, a modeling-identification approach for the monthly municipal water demand system in Hail region, Saudi Arabia, is developed. This approach is based on an auto-regressive integrated moving average (ARIMA) model tuned by the particle swarm optimization (PSO). The ARIMA (p, d, q) modeling requires estimation of the integer orders p and q of the AR and MA parts; and the real ...


    By IWA Publishing

  • Urine diversion dry toilets in eThekwini Municipality, South Africa: acceptance, use and maintenance through users' eyes

    This study was part of the VUNA project aimed to develop an affordable sanitation system that produces a valuable fertiliser, reduces pollution of water resources and promotes health. Urine diversion dry toilets (UDDTs) simplify the on-site hygienisation of faeces and allow for nutrient recovery from urine. Social acceptance is vital for the implementation of the UDDT, because sanitation is ...


    By IWA Publishing

  • What’s in Your Water

    Water can be said to be the essence of life. Indeed, in many indigenous cultures, water is strongly linked to a people’s cultural identity. With the unfortunate news about the amount of lead found in Flint, Michigan’s public water system, perhaps more scrutiny and resources will be designated to improve and monitor this vital resource. But before you pour water into your glass, ...

  • Alternative water supply and treatment solutions in Durban (SA)

    As a result of persistent drought conditions in South Africa a customer (an international consumer goods producer with a production facility in Durban) experiences the pressure of limited availability of water. The ever dropping dam levels currently result in higher risk for intermittent water supply resulting in unplanned and forced production stops in case no water is available. Aquest Colsen ...


    By Colsen International b.v.

  • The Low Down on Pipes: A Look at Municipal Water

    We manufacture our portable remotely operated vehicles (ROVs) and pipe crawlers for a variety of different industries and applications. Due to their robust design and versatility, Deep Trekker products have proven to be the ideal tools for many professionals and ...


    By Deep Trekker Inc.

  • Case Study: Municipal Sustainability

    PHGE Brings Renewable Energy, Diverts Wood & Sludge from Landfill Progressive civic leaders in Covington, TN, knew there was a better solution to disposing of wood waste and sludge than hauling thousands of tons to a landfill every year and paying tipping fees. PHG Energy designed and installed the company’s first municipal gasification system at the city’s waste water ...


    By PHG Energy, LLC

  • Case study - Monitoring of pollution in the surface water in urban area

    Project reference Project: Pilot project in Umeå County Customer: Umeå County, Sweden Project period 2004 Nature of task: time integrated monitoring of PCBs, PAHs, OCPs, Toxicity and metals in three streams in Umeå city area. ...


    By Exposmeter AB

  • How Does Lead Get into Drinking Water? How Can Local Municipalities Remove It?

    In light of the Flint water crisis—when, in 2014, Flint officials changed the city’s water source from the Detroit Water and Sewerage Department to the Flint River, leaching unsafe levels of lead into the public water supply due to improper treatment—many people are wondering if the same thing could happen in their own communities and homes. Some folks believe this could be the ...


    By SAMCO Technologies, Inc.

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

    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. Though it’s a universal concern (rural as well as ...

  • A stochastic model for daily residential water demand

    Residential water demand is a random variable which influences greatly the performance of municipal water distribution systems (WDSs). The water request at network nodes reflects the behavior of the residential users, and a proper characterization of their water use habits is vital for the hydraulic system modeling. This study presents a stochastic approach for the characterization of the ...


    By IWA Publishing

  • The impact of reforming municipal water tariff on water rationing and consumer welfare in Saudi Arabia

    The objectives of this study were to estimate an aggregate price elasticity of demand for municipal water in Saudi Arabia, and to analyze the welfare impact of raising the municipal water tariff. The study utilized available aggregated data (Ministry of Water and Electricity, 1999–2008), and regression techniques to specify water demand functions within the frame of the increasing block tariff ...


    By IWA Publishing

  • Masdar Institutes integrated innovation in water and energy

    Masdar City, in Abu Dhabi, United Arab Emirates, is a ‘living laboratory’, in the words of Professor Taha Ouarda. ‘It is a pioneering experiment whose lessons and results need to be used to duplicate the experiment in other places,’ he adds. This need is due to the focus of the experiment. ‘The elements most important in this region are water and energy,’ notes ...


    By Aquatech Global Events

  • Preventing a Future Crisis - Addressing Water Contamination & Treatment in Flint, Michigan

    Poisoning conjures up images of evil men sneaking away as unsuspecting victims clutch their throats and fall over dead at the dinner table. The reality of poisoning is much more sinister, and its potential sits on a larger scale than most municipalities and states are willing to acknowledge. Lead, bacteria, copper, and other contaminants are drifting in the pipes of Flint, Michigan, and resting ...

  • Consolidation of municipality-owned water suppliers in Japan

    This study examines the characteristics of municipalities owning water utilities that took advantage of incentives provided by the Japanese government to consolidate. We find that economies of scale and government transfers were some of the main factors leading to consolidation of government services. This is expected given the Central Government's efforts to equalize public service levels, ...


    By IWA Publishing

  • Fate of phthalate esters in municipal wastewater treatment plant and their environmental impact

    The fate and distribution of six phthalate esters (PAEs) in a municipal wastewater treatment plant (WWTP) employing an anaerobic/anoxic/oxic (A2/O) process were investigated. The process achieved relatively high removal efficiencies of PAEs in the range 55–97%. It illustrated that biotransformation and sludge-adsorption were major elimination pathways by analyzing the mass balance and flux of ...


    By IWA Publishing

  • Rotomite application serving municipal WWTP, Decatur, Arkansas-case study

    As reported in WaterWorld, Serving the Municipal Water/Wastewater Industry In 1996, the Town of Decaur, Ark., purchased a self-propelled Rotomite 180-P dredging system as part of a new biosolids management program designed to reduce the cost of sludge disposal and to increase solids detention time in-plant. While less than 1,000 people live in Decatur, the town's wastewater treatment plant ...


    By SRS Crisafulli, Inc.

  • East Bay Municipal Utility District Successfully Manages Chloramine Residual in Ten Million Gallon Reservoir with the Process Solutions, Inc. Monoclor Chloramine Management System

    Located on the eastern side of the San Francisco Bay, the East Bay Municipal Utility District (EBMUD) treats and distributes water to over 1.3 million customers in Alameda and Contra Costa counties. As one of the largest utility districts in California, EBMUD is a leader in the water industry’s water quality, conservation and sustainability efforts. EBMUD chloraminates water prior to ...

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