Organic waste treatment using anaerobic and facultative anaerobic bacteria

摘要

A method to prepare an organic composition for a digestor minimizes injury to and enhance the decomposition function of anaerobic and facultative anaerobic bacteria in the organic composition. The method is utilizes at an animal processing facility. Manure produced at the facility is periodically collected at least seven day intervals and at a temperature greater than thirty-two degrees F. Large pieces of inorganic material are removed from the manure while preserving a significant proportion of the living anaerobic and facultative anaerobic bacteria in the manure. The decomposition activity of anaerobic and facultative anaerobic bacteria is facilitated by, at a temperature in the range of fifty degrees F to one hundred and five degrees F, adding water to produce a slurry including seventy-five to ninety-five percent by weight water and twenty-five to five percent by weight of organic material. Organic material in the slurry is separated into particles having a length in the range of one micron to one-eighth of an inch. Inorganic material is removed from the slurry at a temperature in the range of fifty degrees F to ninety degrees F and while preserving the living anaerobic and facultative bacteria in the slurry to produce a slurry product comprised of less than twenty-five percent by weight of said organic material. The slurry product is transported to a digestor. The anaerobic and facultative anaerobic bacteria in the slurry product to decompose in the digestor organic material in the slurry product.