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#2089: Aeration Strategies for THM Control IEPA#5195

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Price: $30.00
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Title: Aeration Strategies for THM Control
Webinar Type: Technical Webinar
Delivered on: 08/23/12
IEPA #: 5195
RTC Hours: 1.00
Total Hours: 1.00
Presented By: Chad Seidel & Steve Acqufredda, Jacobs Engineering Group

SUMMARY: The Stage 2 Disinfection Byproducts Rule has led some water utilities to consider aeration as a potential, cost effective treatment approach to remove TTHMs after formation and in the distribution system.  Aeration of TTHMs is controlled by Henry’s Law constants - with chloroform the most and bromoform the least volatile.  Since HAA5s are not volatile, they are not removed by aeration.  While substantial information regarding aeration treatment of TTHMs is available from the literature going back to the 1980s, new interest in the topic has focused on applying aeration in distribution systems to minimize TTHM concentrations at localized distribution system "hot spots.”This webinar will introduce THM aeration strategies including bubble, surface, and spray aeration and highlight important design considerations.  Modeling and testing approaches will be described.  Full-scale demonstration results will be shared including water quality and operational data regarding reservoir mixing, pH changes, headspace ventilation requirements, and reduction of chlorinated and brominated TTHM species within the distribution system. 

Cost: Illinois Section AWWA Members: FREE; Nonmembers: $30.00

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