Method for the treatment of animal waste and products made therefrom
OwnerLewis M. Fetterman, C. Ray Campbellinventors
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Abstract
A method of treating animal waste includes separating the solids by flocculation and dissolved air flow, followed by screening of the solids to separate them from the waste water. The resulting solid portion is used as the basis for manufacturing value-added products including organic fertilizer, liquid fertilizer, soil amendments and soilless media.
Claims20
A raw material of swine solids suitable for processing into an organic fertilizer, soil amendment or soilless media, prepared by a process consisting of the steps of:
- mixing a dissolved activated polymer with swine waste water to produce a flocculated solid;
- screening the swine waste water to remove the flocculated solids from the swine waste water;
- separating the flocculated solid from the liquid portion and passing the solid portion through a belt filter press to reduce the moisture content to a preselected level,
- whereby the flocculated solid is processed to produce an organic fertilizer, soil amendment or soilless media and the treated liquid is substantially free from solids, odor, and nutrients.
A raw material of swine solids from swine waste water of the type including a solid portion and a liquid portion, characterized by its uniformity and which substantially concentrates the nutrients in the solid portion and removes them from the liquid portion, prepared by a process consisting of:
- separating the solid portion from the liquid portion,
- composting the separated solid portion,
- whereby the resulting composted solid portion may be mixed with other carbon sources and used to produce a fertilizer, soil amendment or soilless media and the treated liquid is substantially free from solids, odor and nutrients.
A method of producing a soil amendment characterized by improved nutrient bioavailability comprising the steps of:
- blending swine solids with a carbon source to form a swine solid mix;
- composting the swine solid mix for about 4 to 6 weeks;
- curing the swine solid mix for about 4 to 6 weeks;
- whereby a stabilized soil amendment is formed that is substantially free of pathogens.
A soilless media having improved nutrient bioavailability and comprising:
- a mixture of composted hog waste solids and a composted carbon source having a moisture content of between about 40% and about 70%.
A soilless media prepared by a process consisting of:
- composting a mixture of swine solids and pine bark to produce a composted mixture;
- mixing the composted mixture with Coir fiber to produce a fibrous mixture;
- and
- mixing sand with the fibrous mixture;
- whereby a stabilized soilless media is formed that is substantially free of pathogens and has enhanced nutrient bioavailability.
A soilless media prepared by the process consisting of:
- composting a mixture of about 2 parts swine solids to about 1 part pine bark to produce a composted mixture;
- adding approximately one third as much Coir fiber to the composted mixture to produce a fibrous mixture;
- adding approximately one third as much Vermiculite to the fibrous mixture;
- whereby a stabilized soilless media is formed that is substantially free of pathogens and has enhanced nutrient bioavailability.
Dependencies are inferred from the claim text.