This is about fuel for cooking and heating water in Haiti as part of relief projects helping to normalize the lives of the people there....
I think the humanure/methane conversion units could be quickly built in an array of sites covering the country.
1) modified porta-potties on a large platform covering
2) a large humanure collection/digestion tank(s) (drop from toilet directly into tank(s)) just like an outhouse, into a pit
3) gas collection apparatus/filtration unit/pump would be able to fill pressurized cylinders for distribution to households...
Invent a gas burning "rocket stove" that can burn butane, propane (kinda nasty fumes) and methane.
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