Photo: Chang W. Lee | New York Times
Governments around the world are studying South Korea's system of converting food waste into animal feed, fertilizer and fuel for heating homes. Understanding that food waste is one of the leading contributors to climate change, South Korea began banning food scraps from their landfills 20 years ago. In the processing facilities, waste goes into a grinder before being baked and dehydrated. Remaining moisture travels through pipes into a water treatment plant, with part of it being used as biogas. The rest becomes purified before ending up at a nearby stream. What's left behind at the processing facility is a fine brown powder available for free for farmers looking for feed supplement for their ducks and chickens. Government officials shared with the New York Times that the process is continually evolving, with technology helping to improve efficiencies and operations.
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