Practical Action is helping farmers in Sri Lanka install biogas units on their farmers to convert cow dung into an alternative power supply.Mr Ratnayake's collects manure from his cows in a specially adapted cattle shed where they feed; he then mixes it with water and leaves it to ferment in a large concrete tank or pit.

Gas (of which 65% is methane) is produced as a by-product of this fermentation and Mr Ratnayake collects it in a simple storage tank (manometer) from where he can then pipe it into his house when he needs it.

Originally posted by bigfatfurrytexan
Washington DC should capitalize on this. They are so full of BS....

yeah, too easy.

I was talking to my wife about this the other day, as there was a show on and they were using buffalo chips for fuel. She was grossed out until i pointed out how inefficient their digestive tracts were, thus the reason they burned so well.

Then we started talking about the methane in cow farts, and how much greenhouse gas that actually produced.

it is nice to see that we are looking for further uses for cow dung. It is a great fertilizer, for sure, and we have no shortage of it. They should look at other herbivorous choices to do this with, as well. Like llamas, or something.