Drinking Water Disinfection [Case Studies White Paper]

  1. On-Site Disinfection Generation Enables City To Provide High Quality Water For Industrial Food Processing Customers
    7/13/2018

    The city of Buhl, Idaho, obtains all of its drinking water from groundwater sources through multiple wells. Prior to 2009, the city did not treat the groundwater but only added chlorine in the form of bulk 12.5% sodium hypochlorite to provide a disinfectant residual. A combination of factors including: changes in EPA and state DEQ regulatory requirements, growth of the residential population and growth of the industrial food processing customers forced the City to build a new water treatment plant to provide filtration to address the naturally occurring arsenic present in the groundwater.

  2. 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.

  3. City Of Punta Gorda Improves Distribution System Residuals By Installing The Tank Shark® Mixing System In Two Million Gallon Punta Gorda Isles Reservoir
    7/10/2018

    Historic Punta Gorda, located on the shores of scenic Charlotte Harbor on the west coast of Florida prides itself in the proactive management of its water supply. With the responsibility of providing water to over 34,000 customers in the 38 square mile service area, Punta Gorda manages 237 miles of distribution pipe and two water storage facilities. The 1 million gallon (MG) Burnt Store elevated tank and the 2 MG Punta Gorda Isles ground storage tank provide distribution system balance as well as the ability to meet peak demands and fire protection capacity.

  4. Monoclor Chloramine Residual Management System Manages Residual For Problematic 5.5 Million Gallon Tank
    7/10/2018

    Eastern Municipal Water District (EMWD) serves about 142,000 customers in Riverside County, CA. The EMWD service area is one of the largest for any water district in arid southern California. On the drinking water side, EMWD manages two water treatment plants and over 15 reservoirs. With 70% of the district’s water coming from the Metropolitan Water District with chloramine disinfection, EMWD has become reliant on chloramine disinfection to manage long transmission lines and longer detention times.

  5. Product Recovery Through Ozone Oxidation Of Waste Liquor
    9/15/2018

    The manufacturing of soda ash from Trona is a multi-step process that results in the production of a waste liquor that contains significant levels of organic contamination.

  6. 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.

  7. Largest Ozone Facility In North America Meets Regulatory Requirements And Remediates Taste & Odor Problems
    9/5/2018

    The North Texas Metropolitan Water District began working to add ozone to its four interconnected water treatment facilities which operate as the Wylie Water Treatment Plant (WTP).

  8. On-Site Hypochlorite System Delivers Historic Efficiency Levels
    9/29/2018

    In one of Pennsylvania’s three original counties, water has played an integral – even historic – role in the region’s development.

  9. Ozone Disinfection System Lowers Turbidity, Boosts Filter Run Times, And Eliminates Taste And Odor Issues
    3/24/2015

    By 2025 Salt Lake City expects to gain additional 100,000 residents, and the nearby city of Sandy expects to gain another 30,000.

  10. Cobb County Expands “Excellent Production Of Potable Water” With ClorTec® DN OSHG System
    8/3/2018

    De Nora’s ClorTec® DN OSHG systems feature market-driven innovations including robust PVC/FRP casings with end view ports, remote monitoring and control, and simple operation and maintenance with 100% access to every component. Systems from 12-3,000 lbs/day produce a guaranteed .8% hypochlorite concentration and feature the DSA® bipolar electrodes pioneered by De Nora. Read about how one community expanded their “excellent production of potable water” with the new ClorTec® DN OSHG System.