Drinking Water Measurement White Papers and Case Studies

  1. How To Clean And Handle pH Sensors
    10/31/2017

    For a pH sensor to maintain an accurate reading, the sensor must remain clean. Specifically, the glass measuring electrode cannot become coated, and the reference electrode assembly must not become coated, plugged or otherwise contaminated by the process solution. Here’s how to clean pH sensors to ensure correct operation.

  2. East Bay MUD Uses Custom Valve, Reduces Water Pressure And Gains Surge Protection
    9/12/2014

    As an engineer, your day-to-day responsibilities often include staying up to date on best-in-class applications and specifications. But whether you’re charged with designing a water treatment facility or pump station, or simply supervising an existing system, the equipment you select must be vetted. This is generally a challenge for engineers because many companies are vying to have their products deemed as the best solution, yet visibility into those claims is often limited.

  3. Monitoring Lead In School Drinking Water
    5/23/2016

    The EPA’s guidance documentation “3T’s for Reducing Lead in Drinking Water in Schools and Child Care Facilities: Training, Testing, Telling” recommends for schools to routinely test their facility’s drinking water, with a focus on lead levels in drinking water fountains.

  4. Retrofit Membrane System Treats High Turbidity Water
    10/6/2015

    The City of Wilmington, Delaware is situated where the Christina River and the Brandywine Creek flow into the Delaware River.

  5. A Rosemount Chlorine Analyzer Proves Just The Job For Seawater Duty At Dow's Terneuzen Site
    4/19/2010

    The Dow Benelux site in Terneuzen, the Netherlands, uses seawater for process cooling. Environmental regulations require careful control of the concentration of chlorine added to control microbial fouling. The existing chlorine measurement system had become outdated, so after stringent tests Dow decided to replace it with a Rosemount Model TCL analyzer from Emerson Process Management.

  6. Turbiwell Comparision Report Before And After Upgrade
    7/29/2015

    Russellville water treatment plant is a surface water plant using traditional clarification, filtration, and treatment. The plant historically has used traditional contact turbidimeters that employ tungsten lamps that required quarterly maintenance, but replaced their turbidimeters with Swan Turbiwell turbidimeters in 2012. Read the full report for a comparison of the performance of the Swan Turbiwell to the previously installed turbidimeters. 

  7. Versatility Of Thermal Mass Flow Meters
    3/10/2014

    There are many well documented flow meter technologies that are essentially trying to accomplish the same thing: measure fluid flow rate. Some of the technologies that are entrenched in the market, such as flow meters that utilize differential pressure as the measurement principle, are well understood by customers. Thermal mass flow meters however, such as the Magnetrol® Thermatel® TA2, are a rapidly growing technology that is continuously evolving.

  8. 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.

  9. A More Efficient Approach To EPA Stage 2 DBP Compliance
    4/20/2018

    Everyone wants pathogen-free drinking water, and adding chlorine is a great way to get it. Unfortunately, the dirtier a water treatment plant (WTP)’s raw water inflow — in terms of natural organic matter (NOM) or microbial organisms — the more disinfection byproducts (DBPs) the chlorination process will generate in the form of trihalomethanes (THMs) and haloacetic acids (HAAs). Those DBPs increase the risk of non-compliance with the U.S. EPA’s Disinfectants and Disinfection Byproducts Rules. Choosing the right instrumentation to measure NOM through spectral absorption coefficients (SACs) can have a big impact on treatment strategies — in terms of both costs and compliance performance.

  10. How To Clean, Inspect, And Calibrate pH Sensors
    4/2/2012

    Once a pH sensor is installed in the process and operating, how do you determine when it is time to take the sensor out of the process and do a cleaning, or a calibration? Does one perform both a cleaning and a calibration or just a cleaning, or just a calibration? By Fred Kohlmann - Analytical Product Business Manager