Application of tannins to reduce odor emissions from animal waste
AssigneeThe United States of America as represented by the Secretary of Agriculture
InventorsTerence R. Whitehead, Michael A. Cotta, Cheryl Spence
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Abstract
Quebracho tannins are effective for the treatment of animal wastes which contain feces or fecal waste-containing material to inhibit odor emissions therefrom. Application of an effective amount of Quebracho tannins to the animal wastes elicits one or both of reducing gas emissions (such as total gas, hydrogen sulfide, and/or methane) therefrom, and reducing the populations or metabolic activity of anaerobic sulfate reducing bacteria therein. Reduction of odor emissions from the animal waste may also be effected by combining the Quebracho tannins with animal litter which is applied in the locus or vicinity of the animal.
Claims19
A method for treating animal waste comprising applying Quebracho tannins onto animal waste in an amount effective to elicit at least one effect selected from the group consisting of a) reducing total gas emissions therefrom, b) reducing hydrogen sulfide emissions therefrom, c) reducing methane emissions therefrom, d) reducing populations of anaerobic sulfate reducing bacteria therein, and e) reducing the metabolic activity of anaerobic sulfate reducing bacteria therein, wherein said animal waste comprises feces or fecal waste-containing materials.
A method for reducing odor emissions from animal waste comprising combining Quebracho tannins with animal litter, and applying said litter in the locus of an animal to receive animal waste discharged therefrom, wherein said tannins are provided in an amount effective to elicit at least one effect selected from the group consisting of a) reducing total gas emissions from said animal waste, b) reducing hydrogen sulfide emissions from said animal waste, c) reducing methane emissions from said animal waste, d) reducing populations of anaerobic sulfate reducing bacteria in said animal waste, and e) reducing the metabolic activity of anaerobic sulfate reducing bacteria in said animal waste, and further wherein said animal waste comprises feces.
Dependencies are inferred from the claim text.