Chlorine Dioxide for Drinking Water Treatment

Chlorine dioxide is an effective pre-oxidation and disinfection chemical that does not form high levels of regulated trihalomethanes and haloacetic acids. This webinar will help utilities evaluate the potential application of chlorine dioxide in their systems.

The presenters will cover the following topics:

• When, Where, and Why to Use Chlorine Dioxide:
  This presentation introduces chlorine dioxide chemistry and its uses for drinking water treatment, including oxidation of nuisance metals, certain taste-and-odor compounds, and natural organic matter, primary disinfection, and control of opportunistic pathogens in premise plumbing. Like all chemical disinfectants, chlorine dioxide produces DBPs as it reacts with chemicals, such as natural organic matter, present in water.
• Generating Chlorine Dioxide:
  Chlorine dioxide is unstable at high concentrations, so water utilities generate it on-site using a variety of techniques. This presentation will discuss chlorine-chlorite, hypochlorite-acid-chlorite, acid-chlorite, and chlorate-based methods and their applicability for small, medium, and large water treatment facilities.
• Lessons Learned from 30 Years of Chlorine Dioxide Use:
  The Cobb County-Marietta Water Authority has used four different chlorine dioxide generation methods at its 86- and 87-MGD water treatment plants over the last 30 years. This presentation will discuss their drivers for using chlorine dioxide and lessons learned from the start-up and operation of chlorine dioxide systems.
• Chlorine Dioxide Strategies for Preoxidation and Primary Disinfection:
  Gulf Coast Water Authority has applied chlorine dioxide for preoxidation and/or primary disinfection at its 57.6-MGD Thomas S. Mackey Water Treatment Plant. This presentation will discuss the plant’s chlorine dioxide application strategies and lessons learned from chlorine dioxide use.

Webinar registration priced per person. Each registrant will be granted live and on-demand access for one person, on a single computer. Link sharing is strictly prohibited. Presentation slides will be available to download during the webinar and a recording will be available to view after the live webinar concludes.

By registering for this webinar, you submit your personal contact data such as name, address, and email address to the sponsors who will use it to communicate with you regarding this event and their services. If you do not wish to receive any emails from our webinar sponsors, you may follow the sponsors opt out or unsubscribe instructions following receipt of an email from them. You will not be able to opt out prior to receiving an initial email from our webinar sponsors.

DISCLAIMER: The mention of specific products or services in AWWA webinars does not represent AWWA endorsement, nor do the opinions expressed in such webinars reflect the views of AWWA. AWWA does not endorse or approve products or services.