Drinking Water Disinfection [Case Studies White Paper]

  1. City Improves Reliability For Chlorine Residual Compliance, And Cuts Chemical Costs, Through Replacement Of Pump With Special Vacuum Feeder For Bleach, LAS, And Polyphosphate
    6/23/2015

    The public works director responsible for a southwestern U.S. city’s drinking water supply reports multiple benefits from replacement of a problematic peristaltic pump system with a special liquid vacuum feeder system for bleach, liquid ammonium sulfate (LAS), and polyphosphate feeds at one of its well sites.

  2. Water Utility Turns To State-Of-The-Art UV Technology To Help Address Drought
    11/24/2014

    The 2013 year was the driest in recorded history with many areas of the San Joaquin Valley reporting groundwater levels more than 100 feet below previous historical lows. 

  3. Safe Drinking Water With UV Disinfection (Case Study)
    11/13/2011

    The source water in Cudahy, a city just south of Milwaukee, is susceptible to contamination and significantly impacted by agricultural and urban runoff. After a Cryptosporidium outbreak in the early 1990s, improved water quality was vital. A UV solution proved to be the best fit for protection against the contaminant within a restrictive space.

  4. Water Utility Selects WEDECO Advanced Treatment Technologies To Purify Urban Runoff
    2/20/2015

    In February 2010, the Dempsey E. Benton Water Treatment Plant (DEBWTP) added 16 million gallons per day (MGD) of capacity to the water utility operated by the city of Raleigh, North Carolina.

  5. Using Ozone To Remove Micropollutants From Wastewater
    12/1/2014

    Micropollutants in our wastewater are a growing problem and so is the concern for the long-term hazard to the ecosystem.

  6. Disinfection Byproducts: Treatment Options And Challenges For Public Water Suppliers
    5/23/2014

    Regulated and emerging disinfection byproducts (DBPs) pose several challenges for water suppliers, but there is a variety of cost-effective cures.

  7. Monochloramine Monitoring – Reliable Analysis, Safer Drinking Water
    6/30/2015

    The Safe Drinking Water Act (SDWA), enacted in 1974, is the main federal law that ensures the quality of Americans' drinking water. Under SDWA, EPA sets standards for drinking water quality and oversees the states, localities, and water suppliers who implement those standards. The law was amended in 1986 & 1996 requiring many actions to protect drinking water and its sources.

  8. Basin Nozzle Manifold Contacting System Installation Remediates Taste And Odor Compounds, Meets Disinfection Goals
    9/1/2018

    A water quality audit revealed that two of the largest drinking water plants in the City of Montreal were out of compliance with Quebec’s latest water quality rules. Both drinking water facilities were located in heavily populated areas; consequently, plant modifications had to be accomplished within their existing infrastructure footprints.

  9. Nitrification In Monochloramine-Treated Water
    5/9/2018

    A water utility in the Midwest USA uses Monochloramine treatment in their two surface water treatment plants to disinfect raw water and establish residual disinfectant prior to discharge to their distribution system. 

  10. Mountain Regional Water District Deploys Next Generation On-Site Hypochlorite And Tank Mixing Technology To Meet Expanding Water Management Needs
    7/16/2018

    The Mountain Regional Water District is a Special Service District of the county that was established by the Summit County Commission in 2000 to regionalize water service by consolidating several public and private water companies.