Converting human-generated waste into fuel in space
Human waste may have a new use: sending NASA spacecraft from the moon back to Earth.
Until now, the waste has been collected to burn up on re-entry. What's more, like so many other things developed for the space program, the process could well turn up on Earth, said Pratap Pullammanappallil, a University of Florida associate professor of agricultural and biological engineering.
"It could be used on campus or around town, or anywhere, to convert waste into fuel," Pullammanappallil said.
In 2006, NASA began making plans to build an inhabited facility on the moon's surface between 2019 and 2024. As part of NASA's moon-base goal, the agency wanted to reduce the weight of spacecraft retuning to Earth. Historically, waste generated during spaceflight would not be used further. NASA stores it in
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