INHIBITION OF METHANE AND HYDROGEN SULFIDE PRODUCTION IN ANAEROBIC DIGESTER ANIMAL FARMS, LANDFILLS, SEDIMENTS AND SEWER SYSTEMS
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United States of America Patent
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Issued Date -
Mar 17, 2016
app pub date -
Sep 17, 2014
filing date -
Sep 17, 2014
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Abstract
A method for inhibiting methane and hydrogen sulfide production from anaerobic digester systems and other biogas generating mediums disclosed. The biogas generating medium is contacted with an effective amount of a composition comprising red yeast rice and iron oxide to cause inhibition of methane and hydrogen sulfide production, and is useful in biogas generating medium from animal farms, including a swine, cattle or chicken farms. The method is useful to inhibit methane and hydrogen sulfide production in sewage systems, landfills, and sediment containing organic carbon. The disclosed inhibiting composition blocks 3-hydroxy-3-ethylglutaryl coenzyme A (HMG-CoA) reductase, and 8-hydroxy-5-deazaflavin (coenzyme F420) in the methane production pathway, due to the presence of lovastatin in the red yeast rice. Furthermore the disclosed inhibiting composition prevents hydrogen sulfide formation with a competing reaction resulting into iron sulfate via reaction with iron (II) having been formed within the reducing environment from iron (III) oxide.
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