Wastewater Disinfection WHITE PAPERS

  1. Vacuum Dosing Chemical Feeder For Chlorination And Dechlorination Helps Minimize O&M Costs For City Of Nashua, NH CSO Screening And Disinfection Facility

    As part of its Long Term Control Plan to reduce combined sewer overflows (CSOs) to the Merrimack River, the City of Nashua, NH constructed a new Screening and Disinfection facility (SDF) to reduce untreated discharges of CSOs to the Merrimack River.

  2. A Midwest Wastewater Plant Identified VigorOx WWT II As Disinfection Solution To Meet New Regulatory Requirements

    The City of Hannibal, Missouri, sought a cost effective disinfection technology to meet upcoming National Pollutant Discharge Elimination System (NPDES) permit. Read the full case brief to learn how the full-scale test confirmed that VigorOx WWT II is a cost effective solution for this plant to achieve the disinfection goals.

  3. A More Stable Disinfection Performance For A California Wastewater Plant

    The City of St. Helena, CA, uses a municipal wastewater system with aerated lagoon and an average flow rate of 0.5 million gallons per day. The performance of existing chlorination process becomes less effective during some periods of summer and fall months, and the city sought a cost effective technology that could provide more stable disinfection performance over a broad range of pH conditions and could easily retrofit the existing system.

  4. The Most Cost Effective Disinfection Alternative For A Wastewater Plant To Meet Regulatory Requirements

    The Valley East Wastewater Treatment Plant (Sudbury, Ontario, Canada) hired an engineering firm to evaluate three disinfection options including chlorination followed by dechlorination, ultraviolet (UV) light irradiation and VigorOx WWT II. Read the full case study to learn more.

  5. Old City, New Ideas: Peracetic Acid In Wastewater Disinfection At St. Augustine

    Wastewater treatment plants are required to disinfect effluent prior to discharge in order to destroy any pathogenic organisms present and minimize public health concerns.

  6. AnoxKaldnes MBBR Proves Effective At Asphalt Refinery

    A refinery needed to upgrade the wastewater treatment system to prepare for expected changes brought about by the use of a new crude feedstock with elevated concentrations of TDS and conductivity. Veolia Water Technologies supplied an AnoxKaldnes Moving Bed Biofilm Reactor (MBBR) treatment system to reduce the BOD and ammonia in the effluent.

  7. Reducing Odor & Corrosion

    Veolia faced the daunting challenge of managing two large WWTP’s as well as finding a better and more cost effective solution for odor and corrosion control.

  8. SCU™ Trace Metals Removal Media Removes Heavy Metals For Battery Manufacturer Discharge Compliance

    In June 2011, Evoqua was contacted by a manufacturer of battery equipment for electric lift trucks. The systems are routinely used at many large food processing facilities in Texas.

  9. IFAS System Doubles Ammonia Removal Capacity

    In August of 2007, the Michigan Department of Environmental Quality issued seasonal ammonia discharge limits for the Coldwater Wastewater Treatment Plant (WWTP), which included a daily maximum ammonia concentration of 2.0 mg/L between the months of May and November.

  10. Installing Hydro-Guard® Automatic Flushing Saves Rural Texas Town $8,000 A Year

    Managed by the private, non-profit South Jasper Water Supply, Buna, Texas’ water system contains 91 miles of un-looped distribution pipe with historical water losses of up to 30%. A small operations team is responsible for monitoring two water plants, reading 700 meters, repairing leaks, and flushing water to control the water quality. In an effort to spend less time manually flushing hydrants and focus more time on repairing leaks to reduce non-revenue water loss, South Jasper Water Supply purchased and installed two (2) Hydro-Guard® HG-1 Basic/S Flushing Systems.