Potable Water - Disinfection (Ohio T&M)

Training overview
Professional Course
2 hours
From 59.90 USD
Start dates
59.90 USD
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Course description

In Potable Water - Disinfection, you'll learn ...

  • Regulations pertaining to the disinfection of potable water
  • Advantages and disadvantages of the primary methods of disinfection
  • Strategies for controlling disinfection by-products
  • Process elements and equipment required for various disinfection treatment methods


To meet the Ohio Board's intent that online courses be "paced" by the provider, a timer will be used to record your study time. You will be unable to access the quiz until the required study time of 100 minutes has been met.

Credit: 2 PDH

Length: 34 pages

Disinfection is used to kill or inactivate disease-causing organisms in a potable water supply. The EPA Surface Water Treatment Rule (SWTR) requires public water systems to disinfect water obtained from surface water supplies or groundwater sources under the influence of surface water.

There are a number of different disinfection options available to the design engineer. The oldest and most widely used method of disinfection is the use of chlorine. Chlorine is very effective as a disinfectant, but can produce undesirable disinfection by-products. Newer disinfection technologies, such as ozone and UV disinfection, produce little or no disinfection by-products. However, these technologies have a disadvantage relative to chlorine in that they provide no residual disinfection in the water distribution system after initial treatment. Thus, recontamination is a concern unless chlorine is used as a secondary disinfectant to provide residual protection.

This course provides a comparative review of the advantages and disadvantages of the primary methods of disinfection and describes the typical process and related equipment for each disinfectant. The course is particularly relevant to engineers involved in the design and selection of water treating and/or distribution systems, as well as engineers who are simply interested in learning more about disinfection of potable water systems.

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Certificate of Completion

You will be able to immediately print a certificate of completion after passing a multiple-choice quiz consisting of 15 questions. PDH credits are not awarded until the course is completed and quiz is passed.

Training content

This course teaches the following specific knowledge and skills:

  • Why disinfection of potable water is necessary
  • The regulatory requirements for disinfection of potable water
  • The comparative advantages and disadvantages of chlorine, ozone and ultraviolet light (UV)
  • How to control disinfection by-products
  • The different forms of chlorine available
  • Chlorine reactions in water
  • How to calculate the required chlorine dose
  • Methods for producing ozone on-site
  • Monitoring and operational requirements for UV disinfection


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Professional Engineers have trusted PDHengineer to provide high-quality PDH courses since 2003. A large library of PDH courses and live, interactive webinars means that engineers can find PDH course material covering all of the major engineering disciplines. Plus, all PDHengineer...

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7915 FM 1960 West, Suite 130
77070 Houston Texas

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