Patent ID: 7892432
Filing Date: 2011-02-22
Classification: C02F

Abstract:
1. A method for preparing an organic composition for a digester to minimize injury to and enhance the decomposition function of anaerobic and facultative anaerobic bacteria in the organic composition, said method comprising the steps of (a) providing an animal processing facility; (b) periodically collecting at least seven day intervals and at an ambient temperature greater than 32° F. manure produced at the animal processing facility, said manure including organic material, inorganic material, and living anaerobic and facultative anaerobic bacteria that function to decompose said organic material; (c) removing, while preserving a significant proportion of the living anaerobic and facultative anaerobic bacteria in the manure, large pieces of said inorganic material from collected manure to produce an initial organic product; (d) facilitating the decomposition activity of anaerobic and facultative anaerobic bacteria by, at a temperature in the range of 50° F. to 105° F. (e) removing, at a temperature in the range of 50° F. to 90° F. and while preserving a significant proportion of the living anaerobic and facultative anaerobic bacteria in said tertiary organic product, small pieces of said inorganic material from said tertiary organic product to produce a quaternary organic slurry product comprised of less than 25% by weight of said organic material; (f) transporting said quaternary organic slurry product to a digester; and (g) permitting said anaerobic and facultative anaerobic bacteria in said quaternary organic slurry product to decompose in said digester organic material in said quaternary organic product.