Penn State Digester Projects
Renewed attention is now being directed to biogas generation as a source of fuel in the U.S.A. Bulletin 827. November 1979.
Controlled anaerobic, or oxygen-free, digestion of animal manure is a way to treat manure to prevent foul odor production while generating a usable energy product.
As more non-farm residents move into rural areas, and more animal facilities continue to expand, odor complaints are increasing. As these manure odors become a larger concern on Pennsylvania farms there is a renewed interest in anaerobic digestion.
Biogas brochure from the 2006 Clean Energy Expo.
Proper care and maintenance of the generator engine will ensure many years of trouble free use.
Special Circular 260
Manure is a biologically active material, alive with bacteria and other microorganisms that depend on the energy contained in manure. The use of manure energy by microorganisms—microbial activity—is a natural process of decomposition.
Many families in the People's Republic of China produce and utilize biogas for cooking meals, lighting their homes and even crop protection and storage.
Anaerobic digestion of animal manure results in biogas and a liquefied, low-odor effluent (processed manure). In certain situations, it can be a cost effective, environment- and neighborhood-friendly treatment for manure and liquid waste.
Presentation from the 2005 Animal Waste Management Symposium.
Paper presented at the July 2008 ASABE Annual Conference.
Powerpoint presentation presented at the July 2008 ASABE Annual Conference.
This fact sheet will explain the fate of the major nutrients in dairy manure plus Johne’s and pathogens as they pass through an anaerobic digester.