: elephant dung.Canada's biggest zoo is inviting bids for a gasification plant that will turn its elephant, rhino and other large animal manure into clean electricity and heat.
The zoo produces about 1,000 (tons) of manure and other organic waste each year. This will be fed into the biogas plant, to be built on land adjoining the zoo, where bacteria will munch through the waste and excrete methane gas.
Zoo waste will make up only a portion of the fuel needed by the 3- to 5-megawatt biogas facility, which will generate enough heat and electricity to power 5,000 homes. The rest will come from organic waste from restaurants, grocery stores and other industrial sites in the area.
Toronto Zoo to turn pachyderm poop to power - Science- msnbc.com
