When I tell people I am going to Peru to build a biogas digester, they always want an explanation.
What is it?
How does it work?
WHY?!
I can answer some of these now, but by the end of the trip I should be able to give a better account.
What/How/Why?
A Biogas Digester is basically an airtight tank of biodegradable material. Through a process called anaerobic digestion (WITHOUT OXYGEN) this material decomposes at a relatively fast rate, producing METHANE! The methane can be collected from the top and subsequently burned as a cooking fuel.
This not only provides a sustainable source of fuel, but the sludge leftover in the tank can be used as a Nitrogen rich fertilizer. Plus it helps control waste build-up near dwellings.
Cool!
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