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Biogas Digester

A biogas digestion system is a way to convert biological waste (like

kitchen scraps, grass clippings, and manure) into usable biproducts of

methane and both liquid and solid fertilizers.

Biogas digestion works by creating an anerobic chamber (i.e. a place

without oxygen) which breaks down the organic matter you put in

it. There are two types of bacteria at play here. One type takes food

and converts it into acid. These are called acidogenic bacteria (aka

acetogens). Methanogenic bacteria (methanogens) convert the acid from

the first system into methane gas.

The methane gas produced is sufficient to run on the sorts of

appliances you'd run propane on. This opens up the doors to build

generators, stove tops, flame effects, refrigerators, and more. All of

this just running off of kitchen scraps.

Open questions for this project