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HOG MANURE
ODOR CONTROL
Hog manure begins to decompose
almost immediately after being excreted. This microbial
decomposition generally produces many noxious volatile
compounds which in turn produce odors. The most common
compounds are carbon dioxide, ammonia, hydrogen sulfide,
and methane. Carbon dioxide and methane are both
odorless, but can be lethal in high concentration. There
are other small amounts of volatile compounds which can
also influence odor emissions. The amount and rate of gas
released is determined by the following factors:
 The number and size of hogs
Temperature of the manure
Type of feed
In addition to adequate ventilation
there are a number of chemical and biological compounds
available for controlling odor in close confinement hog
operations. These include:
Masking agents that override
offensive odors.
Chemical counteractants that are designed to block the
sensing of odors.
Odor absorption chemicals that change the odor-causing
compounds.
Biological compounds such as
EC-4020 &
EC-4000 that alter the
decomposing process and prevent odorous compounds from
being generated.
MORE INFORMATION
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