point-of-use water treatment Articles

  • 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.

  • Pulp & Paper Water Treatment - A look at optimizing water resource management

    Application Case Study (Pulp/Paper Operations) The pulp and paper industry has traditionally been a consumer of large amounts of fresh water and power. Recently, increased focus has been given to the optimized efficiency of paper mills and to the environmental sustainability footprint of the industry. Therefore, water resource management has become a more critical factor ...

  • Point of use/point of entry treatment with LFNano

    EconoPure Water Systems EconoPure Water Systems designs and manufactures highly economical, scalable, low‐fouling membrane systems. The Company leverages the proprietary low‐fouling nanofiltration (“LFNano”) system consisting of a unique membrane element that is designed to avoid particulate fouling, biofouling and scaling. As the name suggests, the LFNano utilizes ...

  • Case study - City of Montreal upgrade of Atwater and Des Baillets water treatment plants

    Sidestream Venturi Injection—Basin Nozzle Manifold Contacting System. Montreal, Quebec, Canada The Problem: In 2001, a water quality audit revealed that two of the largest drinking water plants in the City of Montreal were out of compliance with Quebec’s latest water quality rules. In response to the audit, the city upgraded the 1,400 MLD Atwater and the ...

  • Case study: Innovative portable package wastewater treatment plants

    DEVISE ENGINEERING S.A. has designed, engineered and is currently producing a new series of State of the Art Portable Sewage Treatment Plants (PSTP), incorporating advanced Ultra-Filtration (MBR) technology. These Plants are used for multiple “emergency” & “short-term” purposes with the ability to re-use the treated effluent. The particular Portable STP can be easily ...


    By DEVISE ENGINEERING S.A.

  • European water policies and human health — Combining reported environmental information

    Society depends on the satisfactory and sustainable management of water. Historically, the primary purpose of water treatment was to protect human health, through reducing disease being transmitted through water. Subsequent measures to address environmental concerns have broadened our expectations of what water and waste water treatment should deliver. This report considers three pieces of EU ...

  • Hom’: a simple point of use water treatment device

    This study sought to explore a locally assembled ‘Hom’ point of use water treatment device by assessing aspects of its performance and possible effects of using it on compliant households and communities. The conceptual framework highlights poverty and environmental degradation as causes and consequences of one another, with ill-health caused by water-borne diseases reinforcing both to form a ...


    By IWA Publishing

  • A Case for Point-of-Use RO Ultrapure Water Systems

    ULTRAPURE WATER CRITERIA - AN OVERVIEW 'Pure water' is a relative term. Practically speaking, no water, naturally occurring or treated by man, consists solely of H2O molecules. Forever in pursuit of achieving equilibrium with its surroundings, water has unique characteristics that result in its ability to dissolve most matter. This property of water to dissolve and transport materials is ...

  • Household survey of installation and treatment efficiency of point-of-use water treatment systems in Hanoi, Vietnam

    Since urban water supply is not yet available for every inhabitant in Hanoi City, numerous residents look for alternative sources such as groundwater and rainwater to compensate the supply shortage. However, in parts of Hanoi, it was reported that groundwater is polluted by various contaminants including arsenic (As) and ammonia (NH4-N). Therefore, numerous types of point-of-use (POU) water ...


    By IWA Publishing

  • A critical evaluation of two point-of-use water treatment technologies: can they provide water that meets WHO drinking water guidelines?

    Point-of-use (POU) technologies have been proposed as solutions for meeting the Millennium Development Goal (MDG) for safe water. They reduce the risk of contamination between the water source and the home, by providing treatment at the household level. This study examined two POU technologies commonly used around the world: BioSand and ceramic filters. While the health benefits in terms of ...


    By IWA Publishing

  • A compact point-of-use water purification cartridge for household use in developing countries

    Simple, low-cost household interventions are known to be effective in lowering the incidence of waterborne diseases in developing countries. However, high costs along with operational and maintenance issues have prevented the successful adoption of these interventions among the affected communities. To address these limitations, a cost-effective, gravity-driven water purification cartridge has ...


    By IWA Publishing

  • Spectro Scientific`s Third Edition Of The Oil Analysis Handbook

    It has been over two years since the publication of the first edition of Spectro Scientific’s In-Service Oil Analysis Handbook. Our goal was to compile a comprehensive reference book of common in-service oil analysis techniques to help readers understand and choose the right technique and instrumentation for their needs. In-service oil analysis for condition based maintenance covers a wide ...


    By Spectro Scientific

  • White Paper: Cyclical Aeration Control- Combining Aerobic & Anoxic Conditions in One Basin

    Increase Water Quality with Cyclical Aeration With increased effluent pollution restrictions on municipal wastewater treatment plants, cities are pressed to find ways to economically increase their effluent quality with little to no funding. Many new NPDES permits ...

  • Seven Ways Your Facility Isn’t Meeting Effluent Regulations and How to Solve Them

    Whether you own, operate, or help manage a municipal or industrial facility that deals with wastewater, it’s important to understand how wastewater treatment can play a significant role in the overall health of your business, especially when it comes to meeting effluent regulations. This is an important part of the wastewater treatment process to consider, as ignoring it could earn your ...


    By SAMCO Technologies, Inc.

  • Determining Proper Cooling Tower Size

    To maximize water-based cooling tower benefits, the appropriate tower size must be selected, requiring the identification of several critical factors. Cooling towers are a relatively inexpensive and reliable way of expelling heat from a number of industrial processes, including nuclear & thermal power plants, petroleum refineries, petrochemical plants, food processing plants, as well as HVAC ...


    By Delta Cooling Towers, Inc

  • Real Time TOC Analysis in Steam and Condensate

    Executive Summary Steam in petro/chemical plants could be contaminated with hydrocarbons (TOC = Total Organic Carbons) from various sources. In any case this is a sign for defects in the process, whether it they occur in the heat exchanger, the blow down vessel, the condensate recovery or other parts of the system. Conventional solutions to monitor such contaminations use TOC- ...


    By JCT Analysentechnik GmbH

  • Case study - Procurement and installation of a Biogas desulphurization unit at the Chania WWTP

    A proposal based on Bioconservacion’s technology was selected as the winning bid in the public tender released in 2015, covering the design, procurement and construction of a biogas desulfurizing unit to be installed in the waste water treatment plant in Chania, Greece. With a population over 100,000, Chania is the second largest municipality in the Greek island of Crete. Its waste water ...


    By Bioconservacion SA

  • Demonstration and evaluation of germicidal UV-LEDs for point-of-use water disinfection

    Ultraviolet (UV) irradiation is a common disinfection option for water treatment in the developed world. There are a few systems installed in developing countries for point-of-use treatment, but the low-pressure mercury lamps currently used as the UV irradiation source have a number of sustainability issues including a fragile envelope, a lifetime of approximately one year, and they contain ...


    By IWA Publishing

  • Point-of-use chlorination of turbid water: results from a field study in Tanzania

    Household-based chlorine disinfection is widely effective against waterborne bacteria and viruses, and may be among the most inexpensive and accessible options for household water treatment. The microbiological effectiveness of chlorine is limited, however, by turbidity. In Tanzania, there are no guidelines on water chlorination at household level, and limited data on whether dosing guidelines ...


    By IWA Publishing

  • Factors influencing nitrification in point-of-use BioSand filters

    The BioSand filter (BSF) is a point-of-use treatment technology used in developing countries to improve drinking water quality. Studies on the BSF to date have mainly focused on bacterial, protozoan and virus reduction and less on the filter's effect on chemical contaminants that may also affect human health. This study explored the potential for nitrification in field-scale trials of ...


    By IWA Publishing

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