Contaminant Removal Case Studies and White Papers

  1. Ozone-Biologically Active Filtration For Potable Reuse In California's Inland Communities: Benefits And Barriers
    5/17/2016

    California’s inland communities have been hit hard by four years of drought, lower groundwater levels, and reduced allocations from the State Water Project.

  2. Removal Of Disinfection By-Product With Chlorine Dioxide
    8/9/2016

    This municipality disinfects 1-1.5 million gallons per day of drinking water, and is currently transitioning from a small system serving <10,000 people to a large system serving >10,000 people. Chlorine gas was used as the primary disinfectant for the raw water entering the plant.

  3. Utility Removes Burdensome Bulk Sodium Hypochlorite From Operations
    10/5/2016

    Historically, Lyon County Utilities, Nevada, applied 12.5% bulk sodium hypochlorite for disinfection at each of their well sites. Always looking to improve system efficiency, Lyon County staff reexamined on‐site hypochlorite generation to determine if the use of the 0.8% sodium hypochlorite solution could mitigate the challenges associated with dosing high strength sodium hypochlorite.

  4. Rural Water Corporation Solves Chloramine Residual Issue
    8/15/2016

    Bluebonnet Rural Water Corporation (BRWC), a subsidiary of Bluebonnet Electric Cooperative, serves approximately 1,094 water meters in northeast Washington County, TX, but had a water storage problem not unfamiliar to even the largest water utilities in Texas.

  5. How To Know It’s Time To Replace Your RO Membrane
    9/5/2017

    Reverse osmosis, or RO, is one of the finest technologies to purify water containing high total dissolved solids (TDS) levels of more than 500 ppm. Reverse osmosis plant exporters explain the technology as a separation technology where dissolved and invisible impurities in water are separated with the help of semi-permeable membrane or RO membrane that works under high pressure.

  6. Monoclor Chloramine Residual Management System Manages Residual For Problematic 5.5 Million Gallon Tank
    9/23/2016

    Eastern Municipal Water District (EMWD) serves about 142,000 customers in Riverside County, CA. The EMWD service area is one of the largest for any water district in arid southern California. On the drinking water side, EMWD manages two water treatment plants and over 15 reservoirs. With 70% of the district’s water coming from the Metropolitan Water District with chloramine disinfection, EMWD has become reliant on chloramine disinfection to manage long transmission lines and longer detention times.

  7. Three Valleys Water District Chooses Low-Maintenance Enclosed Ammonia Feed System For Chloramination
    11/18/2016

    Three Valleys Municipal Water District (Three Valleys) is one of 26 water agencies that comprise the Metropolitan Water District of Southern California (MWD). Three Valleys is the primary source of supplemental water for the Pomona, Walnut, and East San Gabriel Valleys.

  8. Ecomuseum Zoo: High Efficiency Filtration Reduces Turbidity & Maintenance Costs
    9/12/2017

    ​The Ecomuseum Zoo is home to the most impressive ambassadors of Quebec’s wildlife. All residents of the Ecomuseum Zoo are there for a special reason: orphaned, injured or born under professional human care, each of them could not return to the wild. Hence, they have found a forever home at the zoo.

  9. Hexavalent Chromium Treatment Using Strong Base Anion Exchange With An Innovation In Brine Management
    12/12/2016

    Researchers examine the feasibility of treating hexavalent chromium — the carcinogen made famous by the movie “Erin Brockovich” — with strong base anion exchange (SBA-IX).

  10. Water Works Commission Lowers Risk Profile By Converting To A Safer Disinfectant
    8/15/2016

    Chatsworth Water Works Commission provides both water and wastewater services to the 5,000 residents of the cities of Chatsworth and Eton, GA.