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EVALUATION OF AMMONIA RECOVERY WASTE TREATMENT FOR SWINE URINE
Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.orgCitation: Pp. 568-575 in the Ninth International Animal, Agricultural and Food Processing Wastes Proceedings of the 12-15 October 2003 Symposium (Research Triangle Park, North Carolina USA), Publication Date 12 October 2003. 701P1203.(doi:10.13031/2013.15295)
Authors: P. A. Loeffler, and T. A. van Kempen
The United States Department of Agriculture (USDA) and Environmental Protection Agency
(EPA) have identified ammonia loading in wastewaters associated with animal farming operations
to be a general area of concern. These concerns include ammonia discharge into surface and
ground waters, a water quality issue, and corresponding ammonia emission, an air quality issue.
This renewed focus at the state and national levels prompt re-evaluation of management practices
for animal waste handling and treatment. Current waste management practices include both slurry
and flush systems, with lagoon storage and treatment, which may require separation of solid and
liquid components after collection, but prior to treatment, or conveyor belt systems which allow
for solid-liquid separation at the point-of-generation, and independent treatment procedures.