Drinking Water Measurement White Papers and Case Studies

  1. In Pursuit Of The Perfect Glass Of Water
    6/12/2018

    Water, classified as one of the basic elements since ancient time, is so essential, so simple, yet can be so challenging to deliver at high quality in high volumes. Pursuing the “perfect” glass of water involves two major influences: 1) regulatory requirements and 2) aesthetics or organoleptic quality (i.e., taste, odor, appearance, etc.). To start, it helps to be blessed with the good fortune of good source water quality, but beyond that it comes down to how a water utility treats and “polishes” the final product. Even for utilities not totally obsessed with garnering national taste-test honors, here are several factors to be considered when searching for the perfect glass of water, and the role that turbidity measurement can play in them.

  2. Turbidity 'A Quantum Leap In Technology'
    12/18/2012

    Turbidity is a principal physical characteristic of water and is an expression of the optical property that causes light to be scattered and absorbed by particles and molecules rather than transmitted in straight lines through a water sample. By Randy Turner, Technical Director, Swan Analytical USA

  3. 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.

  4. Chlorine vs. Chloramine: A Tale Of Two Chemistries
    4/17/2018

    In drinking water treatment’s ongoing battle between disinfection and disinfection byproducts (DBPs), most water utility customers are oblivious to the process. One thing they do notice, however, is when their water smells or tastes bad. Here are some insights that can help water treatment plant (WTP) operators deal with their internal concerns about DBPs and residual chlorine or ammonia levels, as well as their external concerns about customer perceptions of water quality.

  5. A Guide To Common Applications In Water Distribution Systems
    1/1/2017

    This short guide is intended to offer guidance on some of the common problems, applications and questions that arise from using automatic control valves in water systems.

  6. In-Situ Oxygenation System Enables Increase In Capacity For Municipal Wastewater Treatment Facility
    6/16/2016

    To increase capacity within the existing footprint of a wastewater treatment facility in Michigan, two existing tanks were converted to aeration tanks with pure-oxygen aeration provided by Praxair’s In-Situ Oxygenation (I-SOTM) System.

  7. 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.

  8. An 8-Point Checklist Of Pressure Gauge Application Best Practices
    10/1/2018

    As electronic measurement, microprocessor or computerized control, and wireless networking have worked their way deeper into industrial processes, new opportunities for accuracy, convenience, and cost-saving efficiency have multiplied. Electronic accuracy and communication have delivered performance advantages down to even the simplest functions — including pressure readings.

  9. Article: Validation Of Online Monitors Using EPA 334.0 And EPA-Approved Or Accepted Laboratory Meter Reporting Methods
    8/25/2010
    There has long been verification testing between lab and online instrumentation for water quality measurements, especially for Drinking Water and Wastewater (DW//WW). By Jane L. Stevens, Product Manager, Thermo Fisher Scientific
  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