stormwater screening Articles

  • Experience with Local Stormwater Management Programs

     ABSTRACT Local stormwater management programs have traditionally been operated and funded as a function of general government. Increasing requirements to deal with wet weather water quality problems and the devastating impact of flooding have led to increased efforts to expand organizational responsibilities and the need for new and dedicated funding. To provide a cross section of ...

  • 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

  • Balancing growth and conservation - Precast concrete manholes become part of the stormwater solution

    When American Fork, Utah, decided to approve construction of a 175-acre commercial center, the city engineers had to consider the environmental effect it would have on a 45-acre wetland right next door. Under the EPA´s Phase II Storm Water Rules, adapted in late 1999, almost any city large enough to require a storm sewer system must balance growth with the environmental impacts of ...


    By BaySaver Technologies, Inc.

  • Micropollutants in stormwater runoff and combined sewer overflow in the Copenhagen area, Denmark

    Stormwater runoff contains a broad range of micropollutants. In Europe a number of these substances are regulated through the Water Framework Directive, which establishes Environmental Quality Standards (EQSs) for surface waters. Knowledge about discharge of these substances through stormwater runoff and combined sewer overflows (CSOs) is essential to ensure compliance with the EQSs. Results from ...


    By IWA Publishing

  • Controlling the flow: innovative screening device solves detention maintenance issues

    Untitled Document A nine-year, $5.29 million road improvement joint venture between the City of Beaverton, Ore. and Washington County widened 5,680 feet of a two-lane ...


  • Wire manufacturing facility

    Bench-Scale Stormwater Treatment Study A large wire manufacturer in Washington State asked Dungeness Environmental to perform a treatability study on their stormwater run-off. The run-off requires remediation prior to discharge for turbidity, zinc, copper and lead concentrations. Dungeness performed an initial screening test in the lab simulating a variety of water treatment techniques for ...


    By Dungeness Environmental

  • Mono nov holds the key to sewer improvements

    Previously there was no screening treatment in place, and stormwater was discharged directly into the River Lune.The improvement project, fully designed and managed on behalf of United Utilities by Bechtel, involved constructing a low level chamber, incorporating nine L Series Discreens®, and three Series ‘A’ Munchers®, to screen and condition screenings before discharging the clean water into ...

  • Structural improvements on hydrodynamic separators: a computational fluid dynamics approach

    Hydrodynamic separators (HDSs) have been used extensively to reduce stormwater pollutants from urbanized areas before entering the receiving water bodies. They primarily remove particulates and associated pollutants using gravity settling. Two types of HDSs with different structural configurations of the inner vortex-inducing components were presented in this study. One configuration consisted ...


    By IWA Publishing

  • A tiered, integrated biological and chemical monitoring framework for contaminants of emerging concern (CECs) in aquatic ecosystems

    The chemical‐specific risk‐based paradigm that informs monitoring and assessment of environmental contaminants does not apply well to the many thousands of new chemicals that are being introduced into ambient receiving waters. We propose a tiered framework that incorporates bioanalytical screening tools and diagnostic non‐targeted chemical analysis to more effectively monitor for contaminants ...


    By John Wiley & Sons, Ltd.

  • CDS System Pre-Treats Runoff at Recreation Facility Expansion

    Underground Stormwater Treatment Train at James Madison University Recreation Facility Harrisonburg, Virginia - James Madison University (JMU) serves 18,000 students on its 680-acre campus and has begun construction ...

  • Priority organic pollutants in the urban water cycle (Toulouse, France)

    Application of the European Water Framework Directive requires Member States to have better understanding of the quality of surface waters in order to improve knowledge of priority pollutants. Xenobiotics in urban receiving waters are an emerging concern. This study proposes a screening campaign of nine molecular species of xenobiotics in a separated sewer system. Five sites were investigated ...


    By IWA Publishing

  • Mononov provides stormscreen solution to sewage problem

    The installation of a Mono Stormscreen unit now allows the incoming raw sewage to be thoroughly screened at storm level, ensuring large solids are retained in the main flow to treatment and that the stormwater discharge from inlet meets consent requirements. The Stormscreen is designed to provide a self-cleaning, self-powered alternative to existing mesh screens for handling storm overflows. ...

  • Long Term Full Scale Comparison of Activated Sludge (AS) With Biological Aerated Filter (BAF)

    The Wastewater Treatment Plant (WWTP) of Frederikshavn, Denmark, was extended in the early nineties to increase its average daily flow to 4,5 MGD (16,500 m³/d) and meet new requirements for nutrient removal (8 mg/l TN, 1,5 mg TP/l). A parallel biological aerated filter (BAF) was the selected as the most economical upgrade of the existing activated sludge plant (AS), and started up in 1995. ...

  • The Monitoring and Pre-treatment of Brewery Trade Waste Prior to Discharge: Carlton & United Brewery

    Carlton United Brewery installed a Trade Waste Monitoring System to analyse the temperature, flows, pH and chemical compounds in their trade wastewater. This cleaner production initiative was a licensing condition of the Northern Territory's Power and Water Authority (PAWA). As a result of the pretreatment, CUB is able to discharge their brewery wastewater to sewer. Background ...


  • Springfield refines CSO plan with InfoWorks CS

    With the aid of InfoWorks CS, the Springfield Water and Sewer Commission (SWSC) has been able to find a cost-effective and environmentally-sustainable alternative to a proposed CSO relief project. Springfield is in south-western Massachusetts, New England, and is the area’s major urban center and largest community. The Connecticut River, one of the state’s key waterways, forms its western border. ...


    By Innovyze

  • Disposal Company Expands Composting Operations

    Since 1997, Texas Disposal Systems, Inc. (TDS) - an independently owned solid waste company located near Austin, Texas - has operated a composting division, Texas Organic Products (TOP). In our previous BioCycle report ( -Composting Is Alive and Well In Central Texas, - October, 1997), we described how TOP evolved after starting an initial grinding and static pile composting operation at our ...


    By BioCycle Magazine

  • World’s largest compressible media filtration plant eliminates combined sewer overflows, with potential for dry-weather use

    The City of Springfield, Ohio, recently opened its 100 MGD enhanced high-rate treatment facility, designed to treat and disinfect combined high-volume stormwater and wastewater flows generated by wet-weather conditions. Utilizing EPA-documented Compressible Media Filtration technology – FlexFilter™ from WesTech – the system can also provide tertiary filtration and disinfection ...


    By WesTech Engineering, Inc.

  • Cities are the greatest hope for our planet

    If we design cities like ecosystems, they would have the potential to address many of our most pressing issues. Of all the things people build, cities are the most important. Cities are the largest things we build, and most people now live in them. But that’s not why cities are our most important invention. Cities matter because they ...


    By Ensia

  • The Otay Mesa Trunk Sewer: helping development in southern San Diego County

    Untitled Document The City of San ...


    By Innovyze

  • Completing the Cycle: Composters, Wood Grinders Find Expansion Opportunities

     Composters, Wood Grinders Find Expansion Opportunities Interesting evolutions have taken place over the past ten years in the organics processing industry. Sites that opened to compost yard trimmings gradually transitioned into processing woody materials, while wood processors expanded into the composting arena. Other businesses that started with no plans for recycling wood discovered ...


    By BioCycle Magazine

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