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Description: A major component of the characteristic odor of liquid swine manure stored anaerobically is a large group of compounds containing sulfur (Barber and McQuitty 1974).Of particular significance is hydrogen sulfide (H2S), since this gas has not only an offensive odor but is also highly toxic. The possibilities of reducing H2S evolution from anaerobic swine manure using chemical oxidizing agents have been reported previously (Barber and McQuitty 1975). An other approach to the problem may be to attempt to control H2S evolution through the use of iron compounds to precipitate out dissolved sulfur compounds in the anaerobic manure. Gaseous H2S in the atmosphere surrounding anaerobically fermenting manure arises as a result of the desorption of dissolved sulfides from the manure solution (Barber and McQuitty 1974). The rate at which this desorption occurs and the concentration of gaseous H2S that may accumulate is determined, according to Henry

Keywords: chemical control of hydrogen sulfide from anaerobic swine manure. ii. iron compounds
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Citation: Barber, E.M. and J.B. McQuitty 1977. CHEMICAL CONTROL OF HYDROGEN SULFIDE FROM ANAEROBIC SWINE MANURE. II. IRON COMPOUNDS. Canadian Agricultural Engineering 19(1):15-19.
Volume: 19
Issue: 1
Pages 15 - 19
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Date: 1977
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Coverage: Canada
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