water screening Articles

  • Nebraska inline Traveling water screen - case study

    A Nebraska irrigation district installed this IWS traveling water screen system to help protect pipelines leading as well as pivot irrigation lines.  Previous years required repeated cleaning of pivot filters and nozzles. Since the install, they have seen dramatic reduction in downtime and less need for back-flushing of lines for clean out. This project included: ...


    By International Water Screens

  • Vertical water screen for Pittsburgh, CA - case study

    The City of Pittsburg, California looked at repairing their old FMC vertical traveling water screens, but the price was exorbitant… Until they contacted International Water Screens. Our quote for a new water screen was lower than the estimated price to repair the FMC screen. After a year of operation they found that our design was much more efficient than the FMC screen. So, they decided ...


    By International Water Screens

  • Flood and trash screen monitoring

    Hydro-Logic was contracted by City of Edinburgh Council in 2010 to supply and install water level monitoring and flood warning systems at 10 key locations throughout the City. The sites were on open water courses and culverted stream running through the city suburbs where flooding has been a recurring problem over several years. Design and installation services were provided by our sister company ...

  • Fundamentals and Advantages of Screen Filtration

    The “art” of filtration utilizes many methods for separating solid particles from fluids. There is often no right or wrong method. Water quality and customer requirements usually determine the “best” method for each unique situation. Ridged screens, pleated cartridges, string wound cartridges, melt blown cartridges, woven fabrics, non woven fabrics, sintered metals, granular media, frizzy balls ...

  • SCS - Spiral Channel Screen

    Here we grow again! More new products from Arlat Arlat releases it’s ‘SCS’ Spiral Channel Screen, for use in small channels and Septage Receiving stations. Ready for release this year, Arlat is adding another screen design to their product line up. The SCS is designed for channels that are 2’ (24”) in width or smaller. Arlat has received numerous call from sales representatives and ...

  • Headworks Screening for Smaller Plants

    Water treatment facilities in smaller towns and villages, as well as treatment works supporting institutions, prisons, resorts or remote facilities, have difficult choices to make when selecting a headworks system. All require a solids control strategy, but lower flows and smaller budgets limit the available equipment options. A number of different types of equipment can be used to meet these ...


    By JWC Environmental

  • Trash Screen Monitoring in Falkirk

    Falkirk County Council, Scotland Supply and installation and maintenance of a Trash Screen blockage and Flood Warning system, 2006 - ongoing Hydro-Logic was appointed by Falkirk County Council to supply, install and commission a series of sites where there were concerns over flooding. The systems were deployed to supply alarms to a central control office at Falkirk ...

  • ROMAG storm water screen system for the CSO works La Maladière in Neuenburg

    With the RSW-K high-capacity storm water screen and a emergency shut-off valve, the volume of the upstream sewerage system is optimally utilized and the receiving body ideally protected against contamination. The storm water screen removes visible solids from the sewage water before the water is discharged into the receiving body. At the La Maladière surplusing works, the ROMAG RSW-K ...


    By ROMAG aquacare ag

  • Screening of organic pollutants in urban wastewater treatment plants and corresponding receiving waters

    There is a lack of knowledge in environmental pollution of the anthropogenic contaminants in wastewater and surface water. Several organic compounds merit special attention, because of their potential risk to the aquatic environment. Therefore, gas chromatography–mass spectrometry-based screening analyses were performed in order to identify anthropogenic organic contaminants and to reveal ...


    By IWA Publishing

  • Screening of pharmaceuticals and endocrine disrupting compounds in water supplies of Cyprus

    Cyprus is currently the leading country in antibiotic consumption among all European Union member countries and is likely to have a high consumption of pharmaceuticals overall. This reconnaissance type of project sought to investigate the occurrence of 16 pharmaceuticals, six known or suspected endocrine disrupting compounds (EDCs), two flame retardants, one insect repellant, and one fragrance ...


    By IWA Publishing

  • Wastewater Treatment- Internally Fed Screen

    Wastewater Treatment:  Solids removal with internally fed screens efficiently filters the majority of material.  Stuart Ward of  Process Engineered Water Equipment, LLC explains screening equipment is key.  Every installation has an issue and at BrucePac JLR the challenge was removing screened ...


  • Screening optimisation for indirect potable reuse

    An automatic backflush pre-filter used for pre-treatment for secondary wastewater re-use was evaluated and optimised at two different mesh sizes over an 18 month period. The filter was initially run with a 500 μm rating mesh size, as recommended by the supplier of the downstream membrane filtration process, and then at 100 μm to investigate any change in water quality produced and associated ...


    By IWA Publishing

  • Screening of organic contaminants in urban snow

    Snowmelt is known to cause peak concentrations of pollutants, which may adversely affect receiving water quality. High concentrations of metals and suspended solids in snow have been reported, whereas studies on organic pollutants are rare. This study aims at investigating the occurrence of anthropogenic organic compounds in urban snow in Gothenburg (Sweden). The most frequently detected organic ...


    By IWA Publishing

  • Food Processor Flume Cleaning with Rotary Screen

    Food Processor Flume Cleaning Flume Cleaning with Rotary Screen Flumes that are used to transport food from the trucks or storage facilities (tomato, potato, carrot processing) build up with ...


    By Integrated Engineers Inc.

  • Eight screens for California aqueduct - case study

    The Berrenda Mesa Water Districts’ California Aqueduct pumping station had a massive debris problem, causing high labor costs, injuries and endless headaches — until they contacted International Water Screens. We engineered and installed a large array of moss removal screens. Now: Labor issues resolved, no racks to clean. Pump efficiencies have improved to the point where the project ...


    By International Water Screens

  • Screening of few aquatic floating plants for chromium phytoremediation

    Phytoremediation process using hydrophytes emerges as an attractive scientific and engineering tool for the attenuation of metal pollution in the aquatic environment particularly in secondary and tertiary levels of wastewater treatment. The selection of appropriate plants on the basis of maximum uptake potential for engineering application of the process is the key factor. The present study deals ...


    By Inderscience Publishers

  • The Endocrine Disruptor Screening Program: Where are we?

    The U.S. Environmental Protection Agency (EPA) issued its final list of chemicals in the first group of substances that will be screened under the Endocrine Disruptor Screening Program (EDSP).1 Development of this list caps a long, thoughtful, and arduous administrative process that spans over a decade. This “Washington Watch” column briefly reviews the development of the program, with emphasis ...


    By Bergeson & Campbell, P.C.

  • A framework for screening sites at risk from contaminants of emerging concern

    Trace levels of a variety of currently unregulated organic chemicals have been detected in treated wastewater effluents and surface waters that receive treated effluents. Many of these chemicals of emerging concern (CECs) originate from pharmaceuticals and personal care products that are used widely and that frequently are transported “down the drain” to a wastewater treatment plant (WWTP). ...


    By John Wiley & Sons, Ltd.

  • Sensitivity analysis of the CLARA Simplified Planning Tool using the Morris screening method

    The Morris screening sensitivity analysis (SA) has been used to assess how the uncertainty of input parameters influences the output of the CLARA Simplified Planning Tool (CLARA-SPT). To assess the sensitivity of the tool, four hypothetical waste collection and treatment alternatives, which planned to serve 10,000 people, have been proposed and analysed. These alternatives are (A1) dry ...


    By IWA Publishing

  • Wastewater treatment facility uses ‘monsters’ to better manage screening, odor and trash

    As wastewater pours into the Cobourg Water Pollution Control Facility located on the outskirts of this Canadian town, it comes loaded with organics, trash, debris and chemicals. A large perforated plate screen system, called a Monster Separation SystemTM, is the plant’s first line of defense and removes all unwanted solids in order to protect downstream processes.Managers at the facility report ...


    By JWC Environmental

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