Method for reducing hydrogen sulfide emissions from wastewater
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United States of America Patent
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Dec 12, 2006
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app pub date -
Jun 1, 2004
filing date -
Aug 17, 2001
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Abstract
A cost-effective method for reducing the dissolved sulfide content in a wastewater stream and thereby hydrogen sulfide emissions therefrom involving the steps of adding a transition metal salt to the wastewater stream at the upper reaches of a wastewater collection system prior to at least some hydrogen sulfide volatilization followed by addition of an oxidant to the wastewater stream to generate elemental sulfur and a transition metal salt which subsequently participates in additional hydrogen sulfide capturing steps, thereby also improving water quality and wastewater treatment plant operations.
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