LEWISTON, Minn. — Dale and Carmene Pangrac were science teachers before they decided to buy a farm in 1979 and switch careers. Along with their daughter and son-in-law, the couple now manages a ...

Every few months, the compost bins from the University of Michigan dining halls get picked clean — not by a family of raccoons, but by a team of researchers in the Civil and Environmental Engineering ...

After 18 years of use, the bioreactor at the Delaware County Solid Waste Management Center & Compost Facility in Walton is in need of replacing. The 160-foot wide, 14-foot around bioreactor sits ...

Schematic of a typical bioreactor. Key components include the reactor tank, agitation system, feeding pump, thermal jacket, submerged aerator, and sensor probes for monitoring and maintaining optimal ...