Method for treating ammonia-containing organic waste
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United States of America Patent
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Jun 11, 2002
Issued Date -
N/A
app pub date -
Aug 4, 2000
filing date -
May 1, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method is described for treating animal manures and other organic wastes to destroy pathogens, reduce noxious odors, and immobilize water-soluble pollutants, thereby producing a pasteurized, granular product useful as a soil amendment. In a described implementation, the solids content of the organic waste is raised to a predetermined level to create air-filled pore space, and the pH is raised sufficiently to liberate endogenous gaseous ammonia in the air-filled pores for a predetermined time. The level of gaseous ammonia is sufficient to significantly destroy pathogens in the manure. In addition, alkaline material and/or iron salts are added to the organic waste to render certain water-soluble pollutants insoluble.
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