Gallery: Stanford Scientists Transform Raw Sewage Into Eco Rocket Fuel


Photo by Brian Cantwell

Here’s a pretty elaborate way to process sewage waste: Stanford researchers propose using anaerobic bacteria to break it down, producing nitrous oxide or laughing gas. Then, use the nitrous oxide as rocket fuel, of course, which burns leaving only harmless oxygen as a byproduct. Rather than running needless rockets round the globe, the researchers propose that we use rocket-thruster technology to power sewage processing plants, creating a closed loop.

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