Wastewater Contaminant Removal White Papers & Case Studies

  1. 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.

  2. Automated Residual Boosting System Improves Chloramine Levels, Eliminates Nitrification In 400,000-gal Tank
    7/31/2017

    Like many municipalities in urban and suburban areas, San Bruno’s source water comes both from its own groundwater supply and through a purchase agreement with a major water utility — in this case, San Francisco Public Utilities Commission (SFPUC). And, like many municipalities in California, SFPUC, along with San Bruno, switched from free chlorine to chloramines in 2003 largely to reduce disinfection by-products.

  3. Granular Activated Carbon: A Long-Term Solution For Meeting DPB Compliance
    7/31/2017

    When the Cobb County-Marietta Water Authority (CCMWA) anticipated the need to upgrade the Hugh A. Wyckoff water treatment plant, they turned to granular activated carbon (GAC) technology after vetting several alternatives. The plant, a wholesaler in a two-plant system, processes up to 72 million gallons per day and serves about 350,000 people. Comprising of Wyckoff and the James E. Quarles treatment plant, CCMWA is the second largest water provider in Georgia.

  4. Mapping And Identifying The Source Of Water Quality Issues
    6/28/2017

    A Southern U.S. municipality experiencing taste and odor issues in a certain neighborhood was also having difficulty maintaining chlorine residual levels in the area. Biological growth was suspected, however, water leaving the treatment plant met and exceeded all water quality requirements. After several investigations, the source of contamination in the distribution system could still not be identified.

  5. Has The Ideal Biocarrier Finally Been Developed?
    6/1/2017

    In order to improve the efficiency of biofilm technologies, a high-performance biocarrier has been developed, based on requests for ideal carrier characteristics.

  6. Filter Technology Saves Colorado Plant 50,000 GPD
    5/16/2017

    Combined with the installation of the new filter media and wash troughs, this particular type of underdrain and media retainer brought the water treatment plant’s operations up to speed.

  7. Retrofit Significantly Reduces Backwash Cycle Interval, Duration And Water Use For Georgia Utility
    5/1/2017

    The North Columbus Resource Facility recently completed a $12-million replacement of its settled water filtration, removing the existing Wheeler filters, their three-part media and 10-inch poured concrete underdrains, which were no longer efficient.

  8. Center Feed Drum Screen Is Mission Critical To World Class MBR Plant
    4/25/2017

    North Las Vegas has installed some of the largest rotary fine screens operating in the United States. The center feed drum screens are critical to protecting the membrane bioreactor, enabling the plant to maintain extremely low turbidity coming off their plant that is better than most potable water. Read how they are putting the ROTAMAT RPPS to work.

  9. Compact Footprint And Flexible Hydraulics Ease Initial Expansion, Leave Room For Future Growth
    4/11/2017

    When Plainfield, IN, needed to double their permitted capacity from 2 MGD to 4 MGD at their South wastewater treatment plant, they faced a dilemma. Like most treatment plants, space is at a premium, and compact design was needed not only for the current expansion, including the addition of a post aeration structure, but to preserve as much room as possible for projected future expansions.

  10. Significant Energy Saving Resulting From Change Of Thickening Technology
    4/7/2017

    During the summer of 2015 the Waging WWTP in the Bavarian Chiemgau district was desperately looking for an energy-efficient, high-performance sludge thickening plant to replace the centrifuge they had been using. The objective was to optimize digester capacity, gas yield and sludge handling in the overall process on site. Read more about their successful implementation.