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Methane Production From Dairy Cattle Waste, Michael H. Scholla
Methane Production From Dairy Cattle Waste, Michael H. Scholla
Retrospective Theses and Dissertations
A microbiological and economic study of methane production from dairy cattle waste was performed. The profit potential of producing methane and other vendable products from dairy cattle wastes was studied using a computerized cost model. The unit gas cost ($/cu. ft. methane) was determined for refractory volatile solids (VS) concentrations between 52% and 28% (W/W). Reaction rate constants (RKO) between 5.92 x 109 and 1.24 x 1011 were used. Retention time (RT) was varied between 1 and 10 days. Total solids (TS) concentration was varied between 8% and 14%. Analyses were performed with and without a fertilizer plant option for …