Dairy Anaerobic Digesters

Here is a good example of a large scale anaerobic digester for a dairy farm in Tipton, California. The anaerobic digestion process has been used historically for digesting waste-activated sludge to reduce the volume for disposal and also for treating high-strength, low-volume organic wastes to save energy. Recently, corn silage, food waste, animal manure, slaughterhouse waste, and other materials with dense organic content are used as effective feedstock for the production of biogas. With increasing energy costs and the widespread use of natural gas by power generators, biological methanogenesis is now looked upon as a viable method to improve energy sustainability and a source to increase the production of electricity.