I just saw an article about this, and it sounds like a pretty awesome idea. In a nutshell: the researchers used cheese manufacturing waste, fed it to some hungry yeast, and voila – you have bio-diesel.
Of course, it’s not that simple, and I wonder what the total process costs and efficiency are, but it sure sounds like a great idea. They are taking waste that’s already there, and turning it into something useful. I also wonder on the net greenhouse gas impact of this – and I wouldn’t be surprised if it’s positive. It all depends on how would this waste otherwise be disposed of.
The team also had some fun with it! Not only they made the fuel and tested it, but they also aimed at setting the new ground speed record for a bio-fueled vehicle!
Read more on their site if you’re curious.They have some neat pictures too.