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Arthur T Knackerbracket has found the following story:
You may've heard that astronauts on the International Space Station recycle their own pee into drinking water, but space travelers could also one day upcycle their own urine into tools and other useful items.
Researchers from Clemson University are exploring ways that strains of yeast can be used to convert nitrogen from urine and carbon dioxide from astronauts' breath (or perhaps the atmosphere of Mars) into useful substances like nutrients or polymers. One strain of engineered yeast creates polyester polymers that could be used in 3D printers to create needed tools or parts for a long space mission.
The researchers presented their work Tuesday at the 254th National Meeting & Exposition of the American Chemical Society (ACS) in Washington.
[...] Having "a biological system that astronauts can awaken from a dormant state" and start using to produce what they need, when they need it, is the project's motivation, Blenner said.
See also: EurekAlert.
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(Score: 3, Interesting) by looorg on Sunday August 27 2017, @02:23PM (1 child)
On the other hand urine (or urea) is used as a fertilizer so perhaps it shouldn't be used only for 3d-printing material.
(Score: 2) by Phoenix666 on Monday August 28 2017, @12:34PM
It is. the bronx zoo uses urine from its bronx river parkway entrance's bathroom to fertilize its landscape ornamentals. i've been using it on my own garden and it seems to work well. In ancient times chinese mined outhouses for nightsoil for that purpose, but i'm not prepared to go that far yet, myself.
Washington DC delenda est.