farmwaste compost machineeconomicaland energy-efficient
Composting | US EPA – U.S. Environmental Protection Agency
网页2023年12月15日 · Composting is the controlled, aerobic (oxygen-required) biological decomposition of organic materials by microorganisms. Organic (carbon-based) materials include grass clippings, leaves, yard and tree trimmings, food scraps, crop residues, animal manure and biosolids. Compost is a dark, crumbly, earthy-smelling, biologically-stable
A Winning Formula: Making Connections to Turn Food Waste into Energy
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