Rwanda’s Trash is Another Man’s Treasure? Wtf?!
30 12 2007This is just insane!
I first stumbled upon this a while ago at The Healthy Green Blog, but apparently a few years ago the winner of the British Ashten Award (which honors sustainable energy products) was an overpopulated Rwandan prison which had begun converting prisoner waste into combustable biogas for cooking and fertilizer! That’s so wonderful! And gross! And amazing! And creepy…
Sewage disposal had been a major health hazard for the prison and the surrounding area, and while not a new development, Rwanda was the first to impliment it on such a grand scale with such grand success.
The organization which is responsible for this amazing and disgusting development is KIST, or the Kigali Institute of Science, Technology and Management, established in 1997 to “transfer technical innovations, managerial, and entrepreneurship skills into community applications”. For more information, visit the KIST website.
What the Heck is Biogas??
The production of biogas involves putting organic material into an air-tight tank and letting bacteria break it down, where by it releases gas. (Does this mean we could eat lots of beans and produce our own sustainable biogas? That I do not know.) The biogas can then be used as fuel, with its remants usable for organic composting.
To greatly simplify the process, the human waste is flushed into things called air-tight “digesters” where the gas-making process takes place. It is then piped into kitchens for cooking, and this process somehow also deals with the smell and unsanitary-ness of the waste.
For more information:
Ashten Award
Kigali Institute of Science and Technology
By the way, I read an amazing book about the Rwandan genocide by journalist Philip Gourevitch entitled We Wish to Inform You That Tomorrow We Will Be Killed With Our Families: Stories from Rwanda that I’d highly recommend anyone read who wants an indepth, moving and fascinating history of those dark days in Rwanda. The last story in the book made me bawl. It’s a sad but important history we should all know more about.
Categories : Sustainable Energy, Around the World





