Drinking Water Treatment Case Studies and White Papers

  1. Sensor Technology For Control Of Activated Sludge Aeration
    7/19/2013

    Design routines and operation strategies for activated sludge aeration systems have traditionally been based on manual control. By Robert Smith, P.E., BCEE, Ph.D., YSI

  2. Biological Ammonia Removal From California Groundwater Source
    6/12/2018

    A novel biological oxidation filtration treatment process was evaluated for removal of ammonia from a California groundwater source. In addition to ammonia, this groundwater had other contaminants such as iron, manganese, methane, hydrogen sulfide odor, color, high organic carbon, etc. As such, more conventional treatment processes such as breakpoint chlorination were deemed infeasible, and biological treatment was the preferred treatment alternative.

  3. The Eaton M-Max VFD Provides QuantumFlo With A Cost-Effective, Energy Efficient Solution
    4/26/2017

    Achieving consistent water pressure is a challenge for geographical areas that have grown faster than the development of infrastructures to accommodate water demand and for businesses such as fast food restaurants and strip malls.

  4. Ultrasonic vs. Radar In The Water Industry
    6/30/2017

    In recent years, the debate about which technology is best suited for level monitoring and open channel monitoring (OCM) applications has taken some traction. There are those who argue that ultrasonic level technology has been uncontested as the standard for level and OCM applications in the water industry. The counter-argument is that radar technology is more effective because it is more robust and accurate than ultrasonic technology. 

  5. Continuous Analyzer Integrated Data Validation
    5/28/2015

    Continuous analyzers are an integral part of the process to maintain quality, ensure compliance, and protect public health. Therefore it is imperative to ensure the analyzers are functioning properly and provide accurate and reliable data. This requires validation of the data provided by the analyzer on a routine basis. In addition some continuous analyzers incorporate internal data validation capabilities to inform the end user the reliability of the data provided by the analyzer. This paper discusses integrated data validation and how they may be integrated into SCADA systems.

  6. Siemens Is Doing Its Part In Maintaining Drinking Water Purity
    7/19/2016

    Lead in drinking water has become a very visible issue of considerable concern over the last few months.  While municipalities across America have been scrutinizing the quality of their drinking water, it should at least be some consolation that manufacturers of measurement instrumentation have taken serious steps to assure that they are not contributing to the problems that have been encountered.

  7. Full-Scale Installation Report For Z-88® Radium Removal – Village Of Oswego, IL
    8/6/2018

    The Village of Oswego, IL selected WRT’s Z-88® Radium Removal treatment system to remove high concentrations of radium in their public drinking water.  Eight city wells are currently being treated by Z-88® Radium Removal treatment systems.  All eight treatment facilities are now producing safer drinking water since the first installations in 2005. 

  8. Meter Technology Used For Verification
    11/13/2015

    The core of Coriolis mass flowmeters are oscillating tubes. As soon as mass is flowing through them, a Coriolis force is affecting the oscillation, creating a phase shift.

  9. New AMR System Improves Efficiency, Conservation, Customer Service And Revenue For Coeur d’Alene
    9/20/2013

    The City of Coeur d’Alene, Idaho, had been using a drive-by Automatic Meter Reading (AMR) system to read all of its meters since 2010, but according to Rob Stark, utility supervisor for the City of Coeur d’Alene Water Department, it wasn’t realizing the full benefits with its existing system.

  10. Online TOC Analysis In The Drinking Water Treatment Process
    4/22/2015

    In 1974 the Congress of the United States passed Public Law 93-523; the Safe Drinking Water Act (SDWA) to protect public health by regulating the nation’s drinking water supply and protecting sources of drinking water. The SDWA first went into effect on June 24, 1977 and has been amended multiple times.