The Monterey Regional Waste Management District in California is just completing a 5,000 tonne per year plant for the anaerobic digestion of food waste.
The SMARTFERM plant is interesting because of its small size, modularity, relatively low cost ($1.6m), and the fact that it is supplying about 100kW per day to the neighbouring wastewater treatment plant. A high quality compost remains at the end of the process.
Monterey Regional Waste Management District: http://www.mrwmd.org/
Via Adam Johnson