Cow Burps Tapped For Fuel

Dave Knott writes with this intriguing snippet from CBC: "Argentine scientists have found a way to transform the gas created by the bovine digestive system into fuel, an innovation that could curb greenhouse gases that cause global warming. Using a system of valves and pumps, the experimental technique developed by Argentina's National Institute of Agricultural Technology (INTA) channels the digestive gases from bovine stomach cavities through a tube and into a tank. The gases — which otherwise are commonly known as burps, or "eruptos" in Spanish — are then processed to separate methane from other gases such as carbon dioxide. Each head of cattle emits between 250 and 300 liters of pure methane a day, enough energy to keep a refrigerator running for 24 hours."

Re:What kind of tripe is this?

[g0bshiTe]

Why cows already have portholes.

http://en.wikipedia.org/wiki/Cannulated_cow

Re:whatever

[CastrTroy]

I guess that's the big question. My gas company charges 14 cents per cubic meter (1000 litres), so if each cow produced 250 litres a day, you'd get about 3.5 cents per day for each head of cattle. Probably not enough to even pay for the food. Especially considering that's the price to the consumer. You're not going to get anywhere close to 14 cents per cubic meter for bulk methane. However, if you're already raising the cattle for milk or meat, it could be a good way to add an extra source of income. Although at the price you could get, you probably wouldn't even end up breaking even on the collection system.