J. Anim Sci.
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J. Anim Sci. 1970. 30:526-531.
© 1970 American Society of Animal Science
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Gases and Odors from Stored Swine Wastes

Arthur J. Muehling1,2,

University of Illinois, Urbana-Champaign

Abstract

Manure gases in confinement swine buildings have accumulated in concentrations that are dangerous to both the pigs and the operator.

The major manure gases are carbon dioxide, ammonia, hydrogen sulfide and methane of which hydrogen sulfide apparently is the most toxic to both humans and animals. Under normal conditions in an adequately ventilated building, these gases do not reach harmful concentrations. It is only under special conditions such as during a ventilation failure, or during rigorous agitation of the manure in a pit that dangerous levels are reached. The odors from stored swine wastes are not long accepted by neighbors. It may be possible to apply the industrial methods of treating odors; namely, dilution, absorption, adsorption, masking, counteraction and burning to the control of odors from stored manure.

Footnotes

1 Associate Professor, Agricultural Engineering Department.

2 Invitation paper, presented to Extension Section, 61st Annual Meeting, American Society of Animal Science, August 3 to 6, 1969.






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