Beta
×

Welcome to the Slashdot Beta site -- learn more here. Use the link in the footer or click here to return to the Classic version of Slashdot.

Thank you!

Before you choose to head back to the Classic look of the site, we'd appreciate it if you share your thoughts on the Beta; your feedback is what drives our ongoing development.

Beta is different and we value you taking the time to try it out. Please take a look at the changes we've made in Beta and  learn more about it. Thanks for reading, and for making the site better!

Urine Passes Nasa Taste Test

pickens (49171) writes | more than 5 years ago

NASA 1

Ponca City, We love you writes "Astronauts flying aboard space shuttle Endeavour are delivering a device to the International Space Station that may leave you wondering if Nasa is taking recycling too far. Among the ship's cargo is a water regeneration system that distills, filters, ionizes and oxidizes wastewater — including urine — into fresh water for drinking or, as one astronaut puts it, "will make yesterday's coffee into today's coffee". The US space agency spent $250m for the water recycling equipment but with the space shuttles due to retire in two years, Nasa needed to make sure the station crew would have a good supply of fresh water. "When the shuttles retire, that nice water-delivery system that we have will go away," said Endeavour astronaut Sandra Magnus. The Environmental Control and Life Support Systems (ECLSS) uses a purification process called vapor compression distillation: urine is boiled until the water in it turns to steam. In space, there's an additional challenge: steam doesn't rise, so the entire distillation system is spun to create artificial gravity to separate the steam from the brine. The water has been thoroughly tested on Earth, including blind taste tests that pitted recycled urine with similarly treated tap water. "Some people may think it's downright disgusting, but if it's done correctly, you process water that's purer than what you drink here on Earth," said Endeavour astronaut Heidemarie Stefanyshyn-Piper."

cancel ×

1 comment

Sorry! There are no comments related to the filter you selected.

No such thing as Nasa. (0)

Anonymous Coward | more than 5 years ago | (#25793363)

It's NASA. N.A.S.A.

Check for New Comments
Slashdot Login

Need an Account?

Forgot your password?

Submission Text Formatting Tips

We support a small subset of HTML, namely these tags:

  • b
  • i
  • p
  • br
  • a
  • ol
  • ul
  • li
  • dl
  • dt
  • dd
  • em
  • strong
  • tt
  • blockquote
  • div
  • quote
  • ecode

"ecode" can be used for code snippets, for example:

<ecode>    while(1) { do_something(); } </ecode>