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Managing odour from WTPs

Powerful nuisance odors from sewage and wastewater treatment facilities are a worldwide problem, but finding and eliminating the sources of such unpleasant aromas can be difficult. Scientists have compared the search to peeling an onion—one layer is found and removed, but then a second and third emerge, ready to make their odoriferous presence known.

Scientists have now developed a system to sample, measure, categorize and control these smells and are applying it from Seattle to Sydney.

Over the years, the most common stink—the odor of rotten eggs from hydrogen sulfide—has been mostly eliminated by extensive chemical and biological odor control equipment. However, Witherspoon notes, other smells can cause concern, such as the odor of rotten vegetables .... Read more>>

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