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Disinfectant use in Water Treatment

Engineer's, here is our online continuing education course material from the Environmental Protection Agency (EPA) regarding disinfectant use in water treatment. You will earn 4 PDH continuing education training hour upon conclusion of the CEU Leaf quiz.

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This course introduces an overview of the need for disinfection in water treatment. Thereby the course particularly approaches to the in depth study of the use and utilization of these disinfectants. It also sheds lights on some fundamental information about these disinfectants chemicals and oxidants. Further this course entails with the microorganism of concern in water system, their associated health impact and the inactivation mechanisms and effectiveness of various disinfectants. Finally this course summarizes current disinfection practices in the United States including the use of chlorine as a disinfectant and oxidant.

To comply with the SDWA regulations, the majority of PWSs use some form of water treatment. The 1995 Community Water Systems Survey (USEPA, 1997a) reports that in the United States, 99 percent of surface water systems provide some treatment to their water, with 99 percent of these treatment systems using disinfection/oxidation as part of the treatment process. Although 45 percent of ground water systems provide no treatment, 92 percent of those ground water plants that do provide some form of treatment include disinfection/oxidation as part of the treatment process. The most commonly used disinfectants/oxidants (in no particular order) are chlorine, chlorine dioxide, chloramines, ozone, and potassium permanganate.

Engineer Learning Objectives:

  • Get introduced with the fundamental need for disinfection in water treatment.
  • Highlight the proper use of disinfectant chemicals and oxidants.
  • Uphold the proper condition of application of these chemicals.
  • Identify basic information that is common to all disinfectants.
  • Enumerate trends in DBP formation and their health effects in water treatment.
  • Describe microorganisms in water system.
  • Instructed about relevant health impact
  • Learn about inactivation mechanisms and efficiencies of various disinfectants.
  • Enable to better express and illustrate the problem.
  • Learn the standard procedure to proper utilization of these disinfectants.
  • Learn to summarize current disinfection practices in the United States including the use of Chlorine as a disinfectant and an oxidant.

This is a handout style continuing education PDH class that comprehensively reviews the publication.

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Online Format:

     Handout / Attachment

PDH Hours:


Engineer PDH Price: $90.00

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"Your concept of 'online' PE courses is both a timely and reasonably priced alternative. I wish I'd found CEU Leaf years ago."

David G. Gardner, P.E.

SVP (retired), Everett Prescott, Inc.

Gardiner, ME

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