A new machine uses high voltage to create an arch of plasma. This plasma is used to break apart ordinary garbage into clean burning syngas and an inert glass which could be used for concrete filler.
Michael Nuzzi of US Energy says:
“New York City is already paying an astronomical $90 a ton to get rid of its trash. According to Startech, a few 2,000-ton-per-day plasma-gasification plants could do it for $36. Sell the syngas and surplus electricity, and you’d actually net $15 a ton. Gasification is not just environmentally friendly, it’s a good business decision.”Photos and videos of this process can be seen here.
Popular Science, The Prophet of Garbage, Joseph Longo's Plasma Converter turns our most vile and toxic trash into clean energy—and promises to make a relic of the landfill, Michael Behar, March 2007