New technique converts astronaut pee into fuel, drinking water

LONDON: Researchers are developing a technique that can convert human waste aboard space stations into fuel and much-needed drinking water that would otherwise have to be delivered from earth at a tremendous cost. Space organisations have been pondering over the challenge of what to do with astronaut pee, other than ejecting it into space.

Researchers Eduardo Nicolau and Carlos Cabrera from the University of Puerto Rico and NASA'S Ames Research Centre point out that human waste on long-term journeys into space makes up about half of a mission's total waste. Recycling it is critical to keeping a clean environment for astronauts, especially when onboard water supplies run low.

Previous research has shown a wastewater treatment process called forward osmosis in combination with a fuel cell can generate power. Nicolau's team decided to build on these initial findings to meet the challenges of dealing with urine in space. They collected urine and shower wastewater and processed it using forward osmosis, a way to filter contaminants from urea, a major component of urine and water.

Read More Here - TOI - http://timesofindia.indiatimes.com/home/science/New-technique-converts-astronaut-pee-into-fuel-drinking-water/articleshow/33581681.cms

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