Technology is giving new life to food waste by converting it into biofuel

Food waste accounts for about 22 per cent of municipal solid waste in the United States and produces about eight per cent of the world’s human-related greenhouse gas emissions.

New technologies, however, have allowed food waste to go toward useful purposes such as biofuel. Through anaerobic digestion technology, waste is digested by acidogenic bacteria and other anaerobic microorganisms, producing methane and carbon dioxide. The captured gases can be used as biofuel or turned into biomethane.

There are more than 200 food waste processing facilities in the United States that are turning food waste into biogas.

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