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Description: Odor control is a major factor in deter mining the success of many livestock operations. This is especially evident in cases where clean air has been considered a property right that is subject to the jurisdiction of nuisance law (Lisoway vs. Spring field Hog Ranch Ltd. 1975 Giblin 1975 Willrich and Miner 1971). At present 42 odorous compounds have been found in off - gases from livestock manure facilities (Mi ner 1974). These compounds include amines, amides, sulfides, disulfides, mercaptans and ammonia. In addition, alcohols such as methanol, butanol and ethanol and acids such as acetate, butyrate and caproate are also present in most anaerobic environments. The odorous compounds resulting from the anaerobic storage of manure are the result of microbial fermentations. The anaerobic degradation of cellulose, lipids, proteins, and other complex organic materials results in intermediate fermentation products such as those previously mentioned which are responsible for most foul odors. However, under the controlled conditions of anaerobic digestion, these complex materials and intermediate products are further degraded by a selective microbial ecosystem into the odorless compounds CH4 and C02. Thus, anaerobic digestion has been used for many years to stabilize the organic fraction of sewage sludge so as to effectively reduce odors resulting from sludge disposal.

Keywords: the effect of anaerobic digestion upon swine manure odors
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Citation: Welsh, F.W., Schulte, D.D., Kroeker, E.J. and H.M. Lapp 1977. THE EFFECT OF ANAEROBIC DIGESTION UPON SWINE MANURE ODORS. Canadian Agricultural Engineering 19(2):122-126.
Volume: 19
Issue: 2
Pages 122 - 126
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Date: 1977
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Coverage: Canada
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