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US 2018/0235139 A1Published application
System and method for anaerobic digestion of animal wastes
AssigneeHolistic Farming, Inc. (HFI)
InventorJason Chia Hsing Shih
Life of this patent
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Abstract
A new method of disposing of waste for the hog industry is disclosed which avoids use of lagoons. Manure is semi-continuously degritted, anaerobically digested and digested with biomass to produce bio-organic fertilizer and biogas.
Claims17
A method for the semi-continuous treatment of animal waste from an animal containment building comprising:
- a) periodically removing undiluted animal waste from the animal containment building;
- b) placing the removed waste in a hydrolytic degritting chamber with sufficient heated water or steam to obtain a mixture of at least about 50 degrees C. to about 60 degrees C. and degritted;
- c) transfer of at least a portion of the degritted mixture into an anaerobic digester chamber held at a temperature of about 50 degrees C. to about 60 degrees C. and digested;
- and
- d) transfer of at least a portion of the digested mixture to a secondary solid phase digester tank, loaded with dry biomass and fermenting the mixture at a temperature of at least about 50 degrees C. and removing the bio-organic fertilizer from the solid-phase digester.
2 more elements
Dependencies are inferred from the claim text.