Drinking Water Disinfection [Case Studies White Paper]

  1. Arsenic Removal Pilot Study Meets California Standards
    10/3/2018

    Well water from several locations in Ridgecrest, California area is high in arsenic, carbonates and pH. Due to the high levels of arsenic, some wells are not being used to supply municipal water to the city of Ridgecrest and were shutdown. Due to local demand, the feasibility of treating these wells to remove most of the arsenic before blending with water from other wells is being investigated.

  2. Maximum Ozone Transfer Efficiency Across Broad Range Of Water Flow
    8/25/2018

    The design team for the intermediate ozone system at Buckingham Water Treatment Plant, Quebec, had limited space available for ozone contacting for the plant’s 1.3 – 7.4 MGD flow, so a standard fine bubble diffusion basin for ozone disinfection was not an option.

  3. Veteran Potable Water Superintendent Sees Benefits Of Secondary Containment Equipment To Help Enable Use Of Chlorine Gas For Chlorination
    12/27/2017

    A veteran potable water production and treatment superintendent, currently overseeing potable water needs for a federal reservation, reports significant benefit from the availability of secondary containment equipment for chlorine gas storage, as part of a management strategy to help enable the use of that chlorination method. 

  4. The Role Of UV In Solving Next-Generation Water Challenges
    7/4/2013

    The global market for water treatment technologies is growing and becoming increasingly important as the quality and quantity of freshwater sources are stressed and the link between fresh water sources and wastewater — returned to the environment — is more and more obvious. By Rick VanSant, President & CEO, UV Pure Technologies, Inc.

  5. 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.

  6. Philippines Potable Water System Improvement Project Uses Filter Underdrain Blocks To Improve Backwash Efficiency
    10/9/2018

    Founded in 1997, the Manila Water Company (MWC) serves the potable water needs of more than five million residents of the Philippines capital and cities to the east. The company serves as the private partner in a public-private partnership with the Philippines government in operating the Metropolitan Waterworks and Sewerage System for Metro Manila’s East Zone.

  7. UVC LEDs For Biofilm Prevention
    8/4/2015

    Biofilm has adverse effects on all types of instruments, sensors, and equipment used in power plants, food and beverage production plants, desalination facilities, paper mills, and marine environments. This includes growth on pipelines, tanks, heat exchangers, reverse osmosis (RO) membranes, and other equipment. Biofilms can cause reduction of heat transfer, increased pressure drop and corrosion of metallic surfaces, and many forms of contamination. 

  8. Residual Control Technology Saves Millions Of Gallons Of Water While Maintaining Consistent Chloramine Residual Levels
    7/18/2018

    Like many cities within the Dallas-Fort Worth metroplex, the City of Coppell experienced water quality challenges at different periods throughout the year. In particular, the City had difficulty maintaining adequate chloramine residuals at the 1.5 MG Southwestern elevated storage tank during the warmer summer months when outdoor watering was restricted to conserve water.

  9. Pilot Test For Arsenic, Color And Iron Shows Great Results
    10/1/2018

    The City of Riverdale was running into issues with arsenic, color and iron treatment system at their Well 4 site, so they conducted a pilot test with the help of Loprest.

  10. Utility Removes Burdensome Bulk Sodium Hypochlorite From Operations
    7/24/2018

    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.