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Manure digesters could be an option for small farms

March 26, 2015, Eau Claire, WI – There are about 35 anaerobic digesters in operation on Wisconsin farms, but most are on farms with 800 or more cows. Brian Langolf, director of biogas systems and research development at UW-Oshkosh, thinks there is opportunity for digesters on small farms.

Langolf said there are about 1.5 million cows and almost 1,000 registered dairy farms. The average herd size is about 117 cows. He was a presenter March 10 in Stevens Point at one of four organic waste stream management programs planned around the state in March. READ MORE