Slachtafval als Methaan Brandstof

"A company in Sweden has developed a novel and environmentally sustainable -- if somewhat gruesome -- method of actually obtaining methane: boiling cow intestines.

The digestive tracts of all living creatures produce methane, a by-product of the action of bacteria breaking down ingested food matter. Because cows have four stomachs, they create considerably more of the gas than any other animal -- 75 percent of the total methane produced by all animals.

To date no viable method has been devised to capture this gas as it erupts from either end of the cow.

Swedish company Svenska Biogas, however, are currently doing the next best thing: taking the bits of cows that would otherwise be discarded during the slaughter process -- stomach and intestines primarily, but also udders, blood and parts of the liver and kidneys -- and extracting the residual methane directly from them.

"Depending on the cow's size, we can get 80-100 kilos of material from each animal," Carl Lilliehook, Managing Director of Svenska Biogas told CNN.

"These are all the things that would otherwise be classified as food-process waste and either incinerated or disposed of in landfill sites."

Bron: www.CNN.com