Drinking Water Disinfection [Case Studies White Paper]

  1. Performance Of A Conventional Surface Water Plant Using Mixed-Oxidants For Microflocculation And Final Disinfection
    1/20/2009

    The surface water source is from snow-melt and summer thunderstorm run-off from the mountains. This water is detained in McClure Reservoir (7876 ft elevation) and Nichols Reservoir (7483 ft elevation) upstream from the CRWTP, a conventional plant built in 1974 with a design capacity of 8 MGD. Because the City has limited surface water rights, and due to decreased demand, the treatment plant usually shuts down for 60 to 90 days during winter. The reservoirs thaw in spring and turn over in autumn, and during the summer rainy season, raw water turbidities may exceed 5 NTU. By MIOX Corporation

  2. EBMUD Successfully Manages Chloramine Residual In 10-Million-Gallon Reservoir With Chloramine Management System
    5/23/2016

    Located on the eastern side of the San Francisco Bay, the East Bay Municipal Utility District (EBMUD) treats and distributes water to over 1.3 million customers in Alameda and Contra Costa counties. As one of the largest utility districts in California, EBMUD is a leader in the water industry’s water quality, conservation, and sustainability efforts.

  3. Color Reduction From RO Concentrate
    3/3/2015

    The City of Palm Coast, FL was experiencing elevated color in the concentrate stream being directed to the lime softening facility to recover as drinking water. In an effort to meet secondary color standards at the lime plant, this water quality issue limited the volume of the concentrate able to be recovered.

  4. Indirect Potable Reuse With UV-Oxidation - Big Spring, Texas (Case Study)
    12/12/2016

    In an effort to reduce reliance on dwindling surface and groundwater supplies in Texas, the Colorado River Municipal Water District (CRMWD) constructed a new Raw Water Production Facility (RWPF) in Big Spring. Big Spring is a 27,000-member community located in West Texas approximately 300 miles west of Dallas. This RWPF treats secondary wastewater to a standard that allows it to be re-introduced directly into the raw water supply for the water treatment plants of Big Spring, Odessa, and other communities in the region.

  5. Small UV Plant Is Designed To Address Cultural And Safe Drinking Water Needs Cost-Effectively
    10/28/2014

    BI Pure Water worked with University of British Columbia researchers and Lytton First Nation to develop a water disinfection system that addresses the needs of native communities, both cultural values as well as the basic necessity of clean drinking water.

  6. Degas Separator Selected For Wichita Aquifer Storage And Recovery Project
    4/26/2017

    In the 1990s, the City of Wichita, KS, developed a water supply plan that included creating a sustainable water supply through the year 2050. The key component of the plan is recharging the large aquifer that lies under the region with 100 MGD of water from the Little Arkansas River.

  7. Top 10 Considerations When Converting To On-Site Hypochlorite
    12/26/2013

    Transporting pure salt - the raw material needed to generate sodium hypochlorite onsite – is more cost effective, stable, and safer, than transporting and storing bulk sodium hypochlorite, or gaseous/liquid chlorine cylinders from local chemical suppliers. The conversion to on-site hypochlorite generation can be achieved by adhering to these design guidelines.

  8. Australian City Installs Microclor On‐Site Sodium Hypochlorite Generation System
    7/24/2018

    Bathurst is the home of the Bathurst 1000 Race, the largest NASCAR-style “touring car” race in Australia. On race day, tens of thousands of additional visitors tax the capacity of the Bathurst 5 million-gallon-per- day wastewater treatment plant. The diligence and capability of the treatment staff allows the plant to meet the challenge every year. 

  9. Treatment of Groundwater Contaminated With 1,4-Dioxane - Tucson, Arizona (Case Study)
    3/18/2015

    The TrojanUVPhox™ installation at Tucson's Advanced Oxidation Process Water Treatment Facility treats 1,4-dioxane and produces water that is blended and then treated at the neighboring Tucson Airport Remediation Project facility. This purified water is supplied to nearly 50,000 end users.

  10. The UV Uprising: How UV Disinfection Will Claw Its Way To Prominence
    6/20/2014

    Chlorination in all of its forms — gas, liquid, or solid — has been the primary way for treatment plants to disinfect the treated wastewater. The treatment plants that use gas chlorination must face federal regulatory oversight in the form of a Risk Management Program (RMP). Liquid chlorine plants trade in the regulatory oversight for a more expensive and less effective product. While chlorine in its solid form is good for small treatment facilities known as package plants (named for their mobility). However, ultraviolet (UV) technology is rapidly altering the landscape of disinfection throughout the industry.