Drinking Water Disinfection [Case Studies White Paper]

  1. Theoretical Operation Of High-Efficiency Ultraviolet Water Treatment Chamber
    4/16/2014

    The NeoTech Aqua ReFleX™ water purification chambers are the most efficient and compact units available today. They require an order of magnitude less energy and less than 25% of the system volume to achieve the same or better purification result as competing chambers. This is the first in a series of three white papers explaining the benefits of these systems. By J. R. Cooper, Ph.D, NeoTech Aqua Solutions, Inc.

  2. Reservoir Overcomes Toxic Algae Issue
    6/16/2015

    A Nebraska reservoir was experiencing toxic algae in its water. Constructed by the U.S. Army Corps of Engineers (COE) primarily as a flood control reservoir with recreation and irrigation as secondary uses, the reservoir has a surface area of 700+ acres with an average depth of almost 12 feet.

  3. Tank Shark® Active Tank Mixing Proven To Be Superior To Dedicated Tank Inlet/Outlet Design
    6/6/2017

    San Jose Water Company (SJWC) provides drinking water for over a million people in the greater San Jose Metropolitan region and is a recognized leader in drinking water treatment and distribution system water quality management. With over 90 water storage facilities in service, planned maintenance and rehabilitation of capital assets is a key component of SJWC’s CIP program.

  4. Clari-DAF Pretreatment System Reduces Chemical Consumption, Doubles Treatment Capacity
    3/25/2015

    Together, two water treatment plants in Boulder, CO, have the capacity to treat 55 million gallons per day (MGD). When severe drought conditions restricted the source water supply of the Betasso WTP, the city decided to expand the capacity of the Boulder Reservoir Water Treatment Plant (WTP).

  5. UV Disinfection Eliminates Groundwater-Borne Pathogens At Water Utility
    3/13/2015

    A study led by the Marshfield Clinic Research Foundation set out to prove the growing evidence 'that our groundwater is fairly heavily contaminated with human pathogenic viruses.'

  6. Ozone Resolves Hydrogen Sulfide And Color Issues In Well Water
    4/27/2017

    A potable water plant in Eastern Angelina County, Texas,  serves over 2,000 rural customers.

  7. 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.

  8. Retrofit Significantly Reduces Backwash Cycle Interval, Duration And Water Use For Georgia Utility
    5/1/2017

    The North Columbus Resource Facility recently completed a $12-million replacement of its settled water filtration, removing the existing Wheeler filters, their three-part media and 10-inch poured concrete underdrains, which were no longer efficient.

  9. Taste and Odor Treatment with UV-Oxidation - Mississauga, Ontario (Case Study)
    7/7/2010

    The Region of Peel is the second-largest Canadian municipality after the city of Toronto, and draws its drinking water from Lake Ontario — the smallest of the five Great Lakes. To meet the projected population increase from 1,160,000 people currently to an estimated 1,571,000 people in 2031, the Region decided to upgrade and expand its water treatment plant. To deal with seasonal taste and odor compounds produced by algae blooms in Lake Ontario, the membrane plant will be equipped with a Trojan UV-Oxidation system.

  10. Ammonia Monochloramine Analyzer Helps Utility Control Chloramination
    5/13/2015

    In chloramination, continuous online monitoring and increased frequency of measurements allow you to react faster to changes in water quality. The Bachman WTP in Dallas, TX tested the new Hach 5500sc Ammonia Monochloramine Analyzer against other lab and process analyzers.  Read the full case study to see how the increased frequency of the 5500sc AMC measurements allow the Bachman Plant to react faster to water quality changes and further optimize their chloramination processes. Dr. Vadim B. Malkov, Product Applications Manager