water quality test training Articles

  • THMs presented at WQTC, Boston, 1996

    ABSTRACT Strategic Diagnostics Inc. (SDI) markets a simple, colorimetric technology that can supplement trihalomethane (THM) testing using EPA methodology. Conventional analysis of total THMs requires the use of gas chromatography methods, which involve expensive equipment, extensive user training, and significant run time (30-45 minutes). This rapid, lowcost method enables water ...


  • Integrated membrane systems incorporating coagulation, activated carbon and ultrafiltration for the removal of toxic cyanobacterial metabolites from Anabaena circinalis

    The use of integrated membrane systems (a train of treatment processes incorporating one or more membranes) is increasing globally as the technology is very effective for the production of high quality drinking water. In this investigation a laboratory scale integrated membrane system (IMS) featuring coagulation, powdered activated carbon (PAC) and ultrafiltration (UF) was investigated for the ...


    By IWA Publishing

  • 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

  • CSM FRM RO pilot study at Bedok, Singapore

    This report summarizes the results of a pilot study for the evaluation of Woongjin Chemical CSM FRM RO elements at Bedok Water Reclamation Plant, Singapore using a MF/RO system with the capacity of 20 m3/day. RE-4040-FL RO membranes from Woongjin Chemical were tested with pretreatment of 0.1 µm PVDF MF membranes. The pilot plant consists of 6 RO elements (7.9 m2 each). The RO train was configured ...


    By Toray Chemical Korea

  • Cost reduction and operating results of RO-EDI

    Electrodeionization (EDI) uses electrical current, in lieu of acid and caustic chemicals, to regenerate cation and anion resin. Reverse osmosis/EDI systems are now widely used to replace conventional mixed-bed ion-exchange (IX) technology in a broad range of applications. Proven effective at high flowrates, EDI has in recent years been incorporated in water treatment plants around the world, ...


    By Agape Water Solutions, Inc.

  • Automated Data Management Helps Labs Meet Regulatory, Reporting Requirements

    THE NELAC (National Environmental Accreditation Conference) standards published in 2003 were revised and made available in July 2011 as the new TNI Standard 2009. Implementation of this updated standard, which is based on ISO 17025 guidance, will become a reality in the next year. For water system operators and testing labs, implementation requires not only adherence with ISO 17025 standards but ...

  • Economic and Environmental Benefits Flow From Filtration Technology

    Crossflow filtration operations typically fall into one of four categories: microfiltration (MF), ultrafiltration (UF), nanofiltration (NF), and hyperfiltration more commonly known as reverse osmosis (RO). The most common of the operations is reverse osmosis due to its ability to remove dissolved impurities including dissolved salts. Crossflow filtration machines typically include the membrane ...


  • Bringing Bangladesh to World Bank standards - A case study on satisfying the criteria of the World Bank requirements in Bangladesh

    Client: Cairn Energy and Halliburton Brown & RootConsultant: Andy IveNaturally when the World Bank was asked to finance the first offshore platform in Bangladesh in 1994 they demanded stringent environmental protection. What was needed was someone who could combine engineering practicalities with legislative requirements to ensure environmental compliance. Andy Ive was called in to ...


    By Ive Design

  • SMF4 case study 1

    Recycled water plant monitoring Date: 2011 Location: New South Wales Australia Purpose: To determine if the SMF4 could be used to monitor the output from a grey water recycling plant and conclusively differentiate the output water between potable and recycled. Background STS has had a long history of closely working with ...


    By Safe Training Systems Ltd

  • UK’s Axium Process Supplies Two Mobile Membrane Filtration Plants to Masdar Institute

    Masdar Institute of Science and Technology, an independent, research-driven graduate-level university focused on advanced energy and sustainable technologies, today announced it has commissioned UK-based Axium Process to install two mobile membrane filtration plants at the campus. Designed for pilot scale Microfiltration, Ultrafiltration, Nanofiltration and Reverse Osmosis trials, the mobile ...


    By Water Active Ltd

  • The Unique Story of Primozone Ozone Reactor

    When our customers receive a newly build Primozone ozone generator, what they see is an elegant and robust unit that is designed to flawlessly produce the highest concentration ozone and known as the best ozone generator on the market. What we would like to do is to reveal what happens behind the scenes of the making of the inimitable Primozone ozone reactor and outline essential manufacturing ...


    By Primozone Production AB

  • Design, Bidding, and Construction Experiences of Publicly Owned and Operated Onsite Wastewater Systems in Four Communities

    ABSTRACTUSDA Rural Development, Iowa (USDA RD) has funded 4 EPA Model 5 Management type onsite wastewater projects; 2 projects are with existing rural water utilities, 1 project with a city, and 1 project with a county government. All are existing communities with a small user base and low household incomes. The design, bidding, and construction of these types of onsite wastewater projects, while ...

  • WEF/A&WMA Odors And Air Pollutants Conference March, 2010

    Abstract The application of biotrickling filters (BTF) has become commonplace for the removal of hydrogen sulfide and for the reduction of odors from air emissions in wastewater treatment facilities. Operation at a low pH of 1.5-2.0 provides an environment for rapid reproduction of thiooxidans bacteria and metabolism of hydrogen sulfide (H2S). An elimination capacity in excess of 90 gm of ...


    By Biorem Technologies Inc.

  • Using UV Fluorescent Technology to monitor for organic pollutants

    For many years the water industry has relied on traditional sampling techniques to monitor water quality in a wide range of environments. Traditional tests such as BOD, PH, Dissolved Oxygen and Ammonia have formed the bedrock of monitoring parameters. There are however other ways to establish water quality and UV fluorescence offers an up to date solution for the investigation of ...


    By Safe Training Systems Ltd

  • Putting infection control into practice in the workplace

    Healthcare workers are, like patients, subject to illness from a variety of airborne pathogens common to hospital settings. This risk increases during construction and renovation, as these endeavors release dust as well as disease-inducing microbes into the surrounding environment. Since more than one in five workplace illnesses in private industry occur in a hospital setting , hospitals ...

  • When mastering video inspection data is Synonym of performance

    Situation And Objectives In 2007, following the acquisition of a Geographic Information System (GIS), electricity giant Hydro-Québec decided to undertake a major initiative to supply this new system with information on its public utility assets. The goal was an ambitious one: gather and sort data on over 3,000 assets over a 24-month period. At a time when zoom camera inspection was ...


    By CTSpec Inc

  • Project (in process) - thunderbird farms - Arizona arsenic & fluoride removal

    Background In 2008 AdEdge was selected by Atwell Hicks Engineers and Thunderbird Improvement district to provide a 500 gpm treatment system for this Arizona community serving 1,500 population to treat elevated levels of arsenic and fluoride. Non compliant levels are 13 ppb As and 3.20 mg/L F respectively. Raw water quality information is provided in the table below. Several options were ...

  • Compressed breathing air safety - how important is it?

    At first glance the physiological demands of the firefighter, the scuba diver and the hospital patient have little in common. One is trained to deal with fire and rescue, one swims underwater and one is concerned with either regaining or improving their health. Yet all three depend to some extent on a safe source of compressed breathing air, which is where our gas detection systems come in. ...


    By Analox Sensor Technology

  • Hired metals analyser ensures remediation success

    Cognition Land and Water Ltd, a UK based remediation specialist, has hired a portable XRF metals analyser to improve the speed of remediation work at a project in London’s Kentish Town. The project had a major impact on local residents so timescales were extremely tight but Cognition’s Charlie Jarvis says “It would not have been possible to meet the deadline without the use of ...


    By Ashtead Technology Ltd

  • How a Land Use Agency Increases Compost Applications

    Untitled Document A Mecklenburg County office in Charlotte, North Carolina reaches out in many ways to get more residents active in composting and compost use. HERE at the ...


    By BioCycle Magazine

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