Leaving a closed bottle with some wet gunk in it in the sun, causes it to fill with bubbled gas by anaerobic digestion.

They hold pressure pretty well, so all thats needed is to attach them to a utility that connects them in turn to your stove, or probably more plausible, to your generator.
-- pashute, Dec 17 2012

Whether this works depends on the composition of the gunk and the type of organism that is digesting it. Some critters make methane with the right food, while some make alcohol and CO2, while others make botulism or salmonella, while others make god knows what. + anyway, though. because I think this might work with the right stuff.
-- Kansan101, Dec 17 2012


I see difficult to refuel and clean; but the idea could work. A liquid culture medium could help to avoid these obstacles.[+]
-- piluso, Dec 17 2012


and then of course you dump all the used bottles into a bigger bottle with plastic digesting bacteria.
-- FlyingToaster, Dec 17 2012


Which would be a digester reusing a digester reusing plastic bottles. Right?

Actually, on second thought it would be a digester digesting a digester reusing plastic bottles recycling plastic bottles.
-- pashute, Dec 17 2012



random, halfbakery