Clean Water Disinfection APPLICATION NOTES

1. Disinfection By-Products (DBP) Precursor Monitoring
   2/1/2013

   Chlorine has long been used as a primary disinfection method for many water and wastewater treatment applications. However, there is growing concern about the harmful DBP’s produced by the use of chlorine.

2. Monitoring Chloramination Using The APA6000™ Ammonia/Monochloramine Analyzer
   7/16/2012

   Chloramination, a process often used for disinfection of drinking water and wastewater, involves mixing chlorine and ammonia to form chloramines. The relative concentrations of both chlorine and ammonia are essential for optimum disinfection. 

3. Measuring The Chlorine Content In The Emergency Chlorination Of Waterworks
   12/14/2011
   Many municipal waterworks perform no permanent disinfection of drinking water. However, in many cases a process known as emergency chlorination takes place. The process is switched on in case of need, adding chlorine to the drinking water as a disinfectant.
4. Benefits Of UV Transmittance (UVT) Field Testing For Selling & Servicing UV Disinfection Systems
   2/1/2013

   The Real UV254 'P' series portable meters can be used to measure UV transmittance (UVT) in a number of situations, and are especially beneficially when working with small UV disinfection systems. The following cases outline two situations in which Real Tech's portable meters are invaluable.

5. Application Note: Ozone Measurement In Potable Water
   3/1/2010
   Ozone is a powerful oxidizing agent that can be used to destroy the organic compounds that affect the taste and odor of potable water. Environmental concerns have led to increased use of ozone because, unlike chlorine, it does not form hazardous by-products. By Emerson Process Management, Rosemount Analytical
6. Chlorine Method For UKAS Accreditation And DWI Compliance At Welsh Water
   4/13/2017

   In 2013 the Drinking Water Inspectorate for England & Wales announced that water samples collected in England and Wales must be tested in a laboratory that meets specific standards for drinking water sampling and analysis. At the time of the new instruction, the chlorine method employed at the Welsh Water Bretton laboratory was unable to meet these requirements, notably for the prescribed limit of detection. This prompted the laboratory to investigate new analytical options for monitoring residual chlorine.

7. Removal Of Chloramines With Activated Carbon
   12/30/2013

   In order to reduce the formation of harmful disinfection byproducts in drinking water, alternative disinfectant use has become increasingly widespread. Monochloramine is a leading alternative disinfectant that offers advantages for municipal water. This tech brief details the removal of monochloramine using activated carbon.

8. Control Of Drinking Water Clarifiers
   4/13/2017

   "The variable concentration of solids when purging lamella clarifiers creates problems with sludge dewatering. These problems are exacerbated when changing the flocculant. Read the full application note to learn how automatic control of purge cycles for clarifiers using the Sonatax sludge level probe resulted in reduced energy consumption and maintenance at the plant."

9. Flow Meter Enhances Chlorination System Performance For Municipal Water Department
   2/16/2016

   The water municipality at a mid-size city in the Western region of the U.S. serving a population of about180,000 people needed to address a chlorine disinfection system problem at one of its water treatment plants.

10. Comparison of UV vs. Sodium Hypochlorite (Fact Sheet)
    11/23/2011

    Hypochlorite has some significant environmental concerns associated with DBPs and residual toxicity.