Prisoners' feces is converted into combustible "biogas," or methane gas that can be used for cooking. It has reduced by 60 percent the annual wood-fuel costs which would otherwise reach near $1 million, according to Silas Lwakabamba, rector of the Kigali Institute of Science, Technology and Management, where the technology was developed...
-Wired News, Human Feces Powers Rwandan Prison, 16 Jul 2005
Amazing! I'm already imagining if human feces can be used to power automobiles in the near future. Maybe the driver seat will be made like a toilet bowl to fuel the engine. hahaha. Sweden tried using biogas to power trains!
Sweden has unveiled an environmentally friendly biogas-powered passenger train - said to be the world's first...
...The biogas train is due to go into service in September on the 80km (50-mile) coastal stretch. It cost Svensk Biogas 10 million kronor (1.08m euros; $1.3m) to develop.
-BBC, Sweden tests first biogas train, 20 Jun 2005
But it's really smart of the Rwanda people to solve their river pollution and turn the situation around to their advantage. Kudos!
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