Animal waste bioconversion system
AssigneeBion Technologies, Inc.
InventorJere Northrop
Life of this patent
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Abstract
The invention relates to a improved process for the biological transformation of phosphorus and nitrogen containing animal waste excrement into ecologically manageable materials by a process wherein solids in an aqueous slurry of the excrement are precipitated in a solids ecoreactor, the treated slurry is passed to a bioreactor zone where it is soluble phosphorus is precipitated with metallic salts, the slurry is aerobically and anaerobically treated to form an active biomass that actively bioconverts remaining soluble phosphorus and the aqueous slurry containing bioconverted phosphorus is passed to a polishing ecoreactor zone wherein the at least a portion of slurry is bioconverted to a beneficial humus material.
Claims14
A process for the bioconversion of soluble and suspended organics, from animal waste excrement, comprising introducing a nutrient rich aqueous slurry of grazing animal waste excrement comprising straw, entrained organic solids, and soluble and insoluble phosphorus and nitrogen values into a solids ecoreactor zone;
- precipitating at least part of said entrained organic solids and insoluble phosphorus and nitrogen values from said aqueous slurry in said solids ecoreactor zone;
- treating said aqueous slurry from which organic solids have been precipitated with a metallic salt and precipitating a metal complex comprising soluble phosphorus values therefrom;
- introducing aqueous slurry from which at least part of said organic solids and soluble and insoluble phosphorus values have been precipitated into a bioreactor zone comprising an aerobic zone and an anaerobic zone;
- treating said aqueous slurry from which organic solids and soluble phosphorus values have been precipitated in said anaerobic zone of said bioreactor zone;
- treating anaerobically treated slurry from said anaerobic zone in said aerobic zone of said bioreactor zone;
- forming within said aerobic zone of said bioreactor a biomass and aqueous slurry containing enhanced facultative bacteria therein by actively bioconverting at least a portion of soluble phosphorus contained within said aqueous slurry;
- transporting biomass containing enhanced facultative bacteria therein from said aerobic zone of said bioreactor to said solids ecoreactor zone;
- transporting aqueous slurry containing bioconverted phosphorus from said aerobic zone of said bioreactor to a polishing ecoreactor zone;
- bioconverting at least a portion of said biomass transported to said solids ecoreactor zone to a beneficial humus material within said ecoreactor;
- and, recovering water from said polishing ecoreactor zone.
A process for the production of high nitrogen and phosphorus content soil, comprising forming an aqueous slurry of high solids animal waste excrement containing entrained soluble and insoluble phosphorus and nitrogen values by combining said excrement with a first aqueous fluid;
- introducing the combined aqueous slurried excrement into a first solids ecoreactor zone;
- settling solids from the combined aqueous slurry and recovering a phosphorus and nitrogen values containing second aqueous fluid from which solids have been settled;
- combining said phosphorus and nitrogen values containing second aqueous fluid with said first aqueous fluid and forming a further aqueous slurried animal waste excrement thereof with high solids animal waste excrement containing phosphorus and nitrogen;
- introducing said further aqueous slurried excrement into said first solids ecoreactor zone;
- settling solids from said further aqueous slurried excrement;
- repeating said process until settled solids in said first solids ecoreactor zone comprise a high nitrogen and phosphorus content and recovering said high nitrogen and phosphorus content solids.
Dependencies are inferred from the claim text.