Wastewater Collection Systems

  1. Top 10 Technologies From WEFTEC 2016
    10/25/2016

    300,000 square feet. That was the size of the tradeshow floor at WEFTEC, the world's largest annual water quality exhibition. I didn't see every technology showcased last month in New Orleans (over a thousand exhibitors were on hand), but here’s a “best of” list from the many that I came across — a snapshot of various technologies that stood out from the masses, exceptional for their level of innovation and potential for industry impact.

  2. The Water Revolution: Moving To A Decentralized System
    9/9/2016

    In 1943, Thomas Watson, president of International Business Machines (IBM) said, “I think there is a world market for maybe five computers." At the time, a single computer was the size of a large room.

  3. WWEMA Window: The Retrofit Challenge — A New Solution To An Old And Growing Problem
    2/16/2016

    A major challenge for contractors and equipment suppliers with projects that involve retrofitting existing concrete with new equipment in water and wastewater treatment plants involves the confirmation of existing concrete configurations and dimensions.

  4. WWEMA Window: Why Fine Screening Is Crucial At The Headworks
    11/17/2015

    The treatment process for all sewage starts at the same place — the headworks. Inlet works facilities are responsible for a variety of pretreatment processes, including initial debris screening and removal.

  5. Decentralized Wastewater Treatment Shines As Aquifer Recharge Solution
    9/21/2015

    Decentralized wastewater treatment systems have come a long way. Learn how new advancements have broadened their potential and may provide relief to fast-depleting groundwater resources.

  6. 'Project Clean Lake' Breaks New Ground In Pollution Control
    8/31/2015

    The Northeast Ohio Regional Sewer District’s $3 billion pollution-control plan includes massive and lengthy tunnels but goes the extra mile by adding advanced wastewater treatment.

  7. The Do’s And Don’ts Of MBR Pretreatment
    5/5/2015

    They say a picture's worth a thousand words. If that's true, this image of a fouled membrane bioreactor (MBR) system needs little prelude — it's simply what happens when you don't properly protect your membranes with pretreatment.

  8. Tackling 'Flushable' Wipes The Intelligent Way
    4/6/2015

    Wet wipes labeled as “flushable” create costly pump clogs and time wasted for collection system operators. But the problem can be resolved before it starts.

  9. Grit Particle Settling – Refining The Approach
    3/25/2015

    Grit settling velocity is significantly impacted by variability in size, density and shape. The conventional assumption of spheres with a specific gravity of 2.65 is inadequate for characterizing grit.

  10. Slots vs. Holes In Preliminary Treatment Screening
    3/25/2015

    The impact of preliminary treatment (i.e., grit removal, screening, washing compacting of screenings, handling of screenings, and resource recovery) on downstream processes is becoming more apparent as the industry looks for ways to reduce operating costs and increase process results.