Anaerobic Digestion
- The Lure of Manure, Minnesota 2020-Hindsight, January 13, 2012.
- Harvest Power Provides Sustainble Solutions from Organic Waste, Clean Technica.com, October 21, 2011.
- San Jose Advances Waste-to-Biogas Facility Plans, Biomass Magazine, August 2009.
- Wild Rose Farm’s Anaerobic Digester by William Katra, April 11, 2009.
- Xcel Investing in Manure Power, Star Tribune, March 4, 2009.
- Anaerobic Digestion in Tulare, California; CA Energy Commission, June 14, 2008.
- A First for the U.S.: Company Feeds Biomethane into Natural Gas Pipeline, Biopact, January 22, 2008.
- Biogas & Anaerobic Digestion, Penn State University.
- A.D. for Garden Refuse, Sacramento, CA; April 2005.
- Sacramento, CA Signs A.D. Agreement with Sweden, June 29, 2006.
- Anaerobic Digestion, California Integrated Waste Management Board, October 21, 2008.
- “With 14 million pounds of cow waste generated in Oregon each day, there’s a lot of potential energy just waiting to be utilized.” Smart Energy–Biogas Projects.
- Northwest Project to Build Tire-Filled Digester, Biogass Magazine.
- AgStar Program Supports A.D., US Environmental Protection Agency, October 30, 2008.
- “Saddled with Level of Dioxin, Town Considers an Odd Ally: The Mushroom”, “I-Team Update: Secrets in the Soil“
- Haubenschild Farms Anaerobic Digester, The Minnesota Project, August 2002.
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