James river treatment plant meets odor control commitments with help from GTI covers

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Courtesy of Geomembrane Technologies Inc. (GTI)

The James River Treatment Plant is one of nine major treatment plants operated by the Hampton Roads Sanitation District (HRSD).

The James River Treatment Plant is bordered on one side by the James River, and by houses and a park on the other. Although the James River Treatment Plant had installed odor control systems to capture and treat foul air from parts of the plant, its conventional aeration tanks were producing low-level odors that required additional control. Surrounding residents complained. The HRSD staff investigated the complaints and worked with neighbors to identify the odor source. An air specialist at HRSD took samples from various areas at the plant, and even went so far as to bring sample bags to neighbors. Nocardia foam from the aeration tanks was found to be the culprit.

Plant management had committed to controlling odors from the process, and the decision was made to capture foul air under a cover system so that it could be withdrawn and treated in a carbon system.  A variety of covers were considered, but GTI won out over the competition.

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