Green Power Partnership
Converting Food Waste to Energy
A podcast is an audio file published on the web and usually downloaded onto computers or portable listening devices such as iPods or other players. Podcast files are usually MP3 types which can be played on most players.
Get Media Player
You will need media player software on your computer to listen to the MP3 audio files below. You can download player software using links to these vendor Web sites or search the Web for "MP3 player software." Download times for the entire audio clip may vary depending on the speed of your Web connection and other factors.
Subscribe via iTunes®
Subscribe via RSS/XML
EPA does not endorse any particular software or music service.
Wednesday, August 17, 2011
1-2 pm (EST)
U.S. Environmental Protection Agency's Green Power Partnership
On Wednesday, August 17, the Green Power Partnership will host a webinar examining the anaerobic digestion of food waste to generate renewable energy.
Food waste is one of the most important materials to divert from landfills because as food decomposes it creates methane, a potent greenhouse gas that contributes to climate change. In 2009, food waste was the largest category of municipal solid waste disposed, with more than 33 million tons of food waste sent to landfills. If half of the food waste generated each year was anaerobically digested, the amount of electricity generated could power over 2.8 million average American homes for a year.
Anaerobic digestion can be done at wastewater treatment plants (WWTPs), dairy digesters, or dedicated digesters for the organic portion of municipal solid waste. Anaerobic digestion produces two main products, biogas and a soil amendment. Biogas can be used for electricity generation, as a natural gas substitute, or for vehicle fueling.
This webinar will explore how food scraps can be diverted from landfills and used to generate renewable energy. The webinar will review the environmental impacts associated with food waste disposal, the anaerobic digestion process, food waste collection programs, biogas usage for energy, available EPA resources and tools, and the opportunities and hurdles associated with expanding the anaerobic digestion of food scraps. It will also highlight a unique partnership between the City of West Lafayette, Indiana and Purdue University whereby food scraps from the university's cafeteria are sent to the city's WWTP to be used as an energy source.
- Blaine Collison, Program Director, U.S. EPA's Green Power Partnership
Presentation (PDF) (7 pp, 504K, About PDF)
- Laura Moreno, Environmental Scientist, U.S. EPA, Pacific Southwest Region
Presentation (PDF) (14 pp, 1.2MB)
- David Henderson, Utility Director, West Lafayette, Indiana
Presentation (PDF) (17 pp, 3.3MB)
- Transcript (PDF) (20 pp, 111K) of the Converting Food Waste to Energy Webinar