drinking water treatment training Articles

  • Recycle of waste backwash water in ultrafiltration drinking water treatment processes

    In drinking water treatment, ultrafiltration (UF) membrane systems are generally operated at 90 to 95% recovery with production losses resulting from waste residual streams such as backwash water and clean-in-place (CIP) liquid residuals. In drought-prone regions, it may be desirable to apply alternative UF plant design configurations to increase recovery rates and minimize water loss. This ...


    By IWA Publishing

  • Tracking disinfection by-products and arsenic removal during various drinking water treatment trains

    In the central Banat region (Northern Serbia), groundwater is used as a drinking water source. Raw water originates from a 40–80 m and 100–150 m deep layer. It contains a high amount of natural organic matter (DOC = 9.17±0.87 mg C/L) with a trihalomethanes formation potential of 448±88.2 μg/L and a haloacetic acid formation potential of 174±68.9 μg/L. A high amount of arsenic (86.0±3.4 μg/L) is ...


    By IWA Publishing

  • Drinking water: the problem of chlorinous odours

    Chlorinous off-flavours in drinking water are a leading cause of complaints to Australian water utilities and other utilities worldwide. The occurrence and causes of chlorinous odours in drinking water were investigated with the use of an odour panel, trained using a modified flavour profile analysis technique. A new system for classifying water types according to the causes of chlorinous odours ...


    By IWA Publishing

  • Dissolved organic nitrogen (DON) in a full-scale drinking water treatment plant

    Dissolved organic nitrogen (DON) is currently considered as one of the most important parameters in drinking water treatment due to its potential to form toxic nitrogenous disinfection by-products (N-DBPs). A comprehensive investigation was made in this study on the variation of DON in a full-scale drinking water treatment plant with a treatment train of coagulation/sedimentation, biofiltration ...


    By IWA Publishing

  • Students tackle disinfection issues using drinking water treatment simulator

    In a recent innovative assignment, Civil Engineering students at the University of Toronto pooled their talents to address a growing drinking water issue. Teams of students in the graduate course taught by Dr. Robert Andrews used computer simulation to determine how best to optimize a water treatment plant to meet tough new standards for disinfectant residual and disinfectant by-product (DBP) ...

  • Homeland Security for Drinking Water Supplies

    As it has done with other jurisdictions, Congress has recently passed legislation aimed at protecting our nation's drinking water resources. Historically, water supply protection has been a high priority, including reservoir protection, continuous monitoring, and secure and redundant facilities to ensure an uninterrupted supply of drinking water. The Clean Water Act (1972), requires pollution ...


    By AECOM

  • Profiles of dissolved organic matter and haloacetic acid formation potential in drinking water treatment by a comprehensive fractionation technique

    A comprehensive fractionation technique was applied to a set of water samples obtained along a real drinking water treatment plant with ozonation and granular activated carbon (GAC) treatment to obtain detailed profiles of dissolved organic matter (DOM) and to evaluate the haloacetic acid (HAA) formation potentials of these DOM fractions. The results indicated that ozonation and GAC treatment ...


    By IWA Publishing

  • Removal of NOM-constituents as characterized by LC-OCD and F-EEM during drinking water treatment

    Natural organic matter (NOM) is of concern in drinking water because it causes adverse aesthetic qualities such as taste, odour, and colour; impedes the performance of treatment processes; and decreases the effectiveness of oxidants and disinfectants while contributing to undesirable disinfection by-products. The effective removal of NOM during drinking water treatment requires a good ...


    By IWA Publishing

  • Removal of natural organic matter and trihalomethane formation potential in a full-scale drinking water treatment plant

    A multidisciplinary approach was applied in this work to characterise natural organic matter and evaluate the performance of a full-scale waterworks treating organic-rich surface water. It was shown that the combination of the treatment processes considered efficiently removed the dissolved organic matter, including its specific fractions. Most of the dissolved organic carbon and nitrogen (DOC ...


    By IWA Publishing

  • Clean drinking water for the Orang Asli in Malaysia with Trunz Water Systems

    Malaysia - As a result of littering, overfertilization and environmental influences the raw water sources in the Cameron Highlands are contaminated with virus and bacteria. Consumption of such water leads to major health affecting diseases - and as a chain reaction to less productivity, less income, less education for children and so on. Remote villages of orang asli (aborigines) are concerned of ...


    By Trunz Water Systems AG

  • Evaluation of household drinking water filter distribution programs in Haiti

    Household water treatment (HWT) can reduce the diarrheal disease burden in populations without access to safe water. We evaluated five programs that distributed biosand, ceramic, or Sawyer filters in Haiti after the 2010 earthquake and cholera outbreak. We conducted household surveys and tested Escherichia coli and turbidity in stored household untreated and treated water in ∼50 randomly ...


    By IWA Publishing

  • What’s in those new plastic pipes delivering drinking water?

    Lingering questions leave some concerned about a new generation of plumbing material The calls and e-mails arrive as often as several times a week from people with concerns about drinking water. Some of the callers — who include homeowners, architects and builders — want to know why their water smells like gasoline. Others want to know which kinds of pipes to ...


    By Ensia

  • Unique Ozone and Ultraviolet Water Treatment System

    Euroby Ltd, the sludge treatment specialists, are pleased to announce the signing of an agreement to be the sole UK and Ireland distributor for the unique UVOX range of water treatment  systems.UVOX, as the name suggests, uses a combination of Ultraviolet and Ozone to treat infected and polluted water.Its uniqueness stems from its novel method of first producing ozone by irradiating air with a ...


    By Euroby Limited

  • 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.

  • ClorTec™ On-site Disinfection Helps Ensure Safety at British Columbia Water Treatment Facility

    Constructed in 1997, the District of Chetwynd Water Treatment Plant (British Columbia, Canada) treats nearly 2,500 cubic meters of water per day using gas chlorination as its primary form of drinking water disinfection. With recent concerns about the safety of chlorine gas, including potential eye, skin and respiratory irritation and the risk of death with high exposure, the district elected ...


    By De Nora Water Technologies

  • Demonstration of Resin Adsorption Techology for Treatment of VOCs in Groundwater

    Untitled Document ABSTRACT Aberdeen Proving Ground (APG) has been a center for the development, testing, and manufacture of military-related chemicals since World War I, ...


    By Weston Solutions, Inc

  • Project profile - uranium treatment system Middletown Springs Elementary School Vermont

    Background The Middletown Springs Elementary School in Vermont is located in an area of the U.S. very susceptible to the formation of naturally-occurring uranium. Due to the high levels of uranium detected in the well water serving the School, it was placed on a “Do-not-Drink Advisory”. AdEdge was contacted by Otter Creek Engineering in June 2009 to assist the School in ...

  • Managing Water Pollution

    Untitled Document Equipment and ideas abound for cleaning up plant wastewater and polluted groundwater Groundwater, surface water, wastewater, drinking water: ...


  • Thames water case study

    Allowing quick and easy data interrogation Thames Water is the UK’s largest water and sewerage company, serving 14 million customers across London and the Thames Valley.Every day, Thames Water supplies 2,600 million litres of tap water to 9 million customers across London and the Thames Valley. Over 400,000 tests per year are carried out to ensure their drinking water meets ...


    By Rivo Software Ltd.

  • Multiple Barrier Treatment for Indirect Potable Reuse: Considerations for Trace Contaminants of Emerging Concern

    The Logan Township Municipal Utilities Authority was awarded a $4.1-million grant from the New Jersey Department of Environmental Protection based on a proposal, developed by Metcalf & Eddy to design an indirect potable reuse treatment and injection system to replenish potable groundwater supplies, the first of its kind in the northeastern US. The treatment train was selected based on an ...

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