In April, Avatar Systems installed an anaerobic digester system at the 170cow Keewaydin Dairy Farm in Stowe. Avatar's mixed-plug flow system is composed of horizontal fiberglass hulls, 20and 40-ft.

Wasted food is a huge topic of discussion lately—and that’s a good thing. More than 36 million tons of food waste per year are disposed of in landfills in the United States alone. While volumes could ...