I found this article and thought it was interesting. An New Zealand compainy has made bio-diesel from sewage from a waste treatment plant. They use the cleaning alge that is no longer useful in the cleaning process to make the clean fuel. Most of the time Bio-diesel is made in lab like envoirments this is clearly different. If it does produce more bio-diesel/energy then it takes to run the thing then I say this is a great invention. You what do the rest of you think? Is it a new way to get cheap gas to save the future or just something that will work in the future.
Sewage to Diesel