03973043 is referenced by 39 patents and cites 5 patents.

A method for converting feedlot fecal waste materials into methane and animal feed is disclosed. In the disclosed method, the feedlot fecal waste materials are collected, combined with water to form a slurry and the slurry is thereafter subjected to an anaerobic fermentation process. The anaerobic fermentation process is carried out under conditions such that a methane rich gas is formed which can be collected and utilized as an energy source. The liquid residue material from the anaerobic fermentation step is thereafter subjected to an aerobic fermentation process to produce a protein rich material that can be utilized as an animal feed. The liquid residue remaining from the aerobic fermentation process can be utilized as a fertilizer material.

Title
Feedlot animal wastes into useful materials
Application Number
5/600919
Publication Number
3973043
Application Date
July 31, 1975
Publication Date
August 3, 1976
Inventor
Howard D Lynn
221 Star, Hereford, 79045
TX, US
Agent
Hubbard Thurman Turner & Tucker
IPC
A23K 1/00
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