Can Urine Be Distilled to Extract Potable Water?

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Discussion Overview

The discussion centers around the feasibility of distilling urine to extract potable water. Participants explore the theoretical and practical aspects of urine distillation, including its components and the methods used by organizations like NASA for purification.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant, Jaime, inquires about the possibility of distilling urine to obtain potable water and questions whether heating it to a specific temperature could isolate the water.
  • Another participant mentions that NASA employs technologies to purify astronaut urine, suggesting that such methods are effective.
  • Several participants express strong aversion to the idea of distilling urine, labeling it as "the most disgusting thing in the world."
  • A participant recalls a documentary indicating that NASA's urine purification process resulted in water that was purer than tap water by several orders of magnitude.
  • Concerns are raised about the complexity of the distillation process, with one participant suggesting that multiple distillation steps may be necessary to separate volatile components from water.
  • Another participant humorously notes the unpleasant smell associated with the distillation process, reinforcing the idea that it should not be attempted outside of controlled environments like space stations.

Areas of Agreement / Disagreement

Participants express a mix of curiosity and skepticism regarding the distillation of urine. While some acknowledge the potential for purification as demonstrated by NASA, others emphasize the unpleasantness and complexity of the process, indicating that no consensus exists on the practicality of distilling urine for potable water.

Contextual Notes

There are uncertainties regarding the boiling temperatures of various components in urine and how they might affect the distillation process. The discussion does not resolve whether a single distillation step would suffice or if multiple stages are necessary.

jc.int
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Hello,
I'd like to know if it is possible to distillate urine so we can extract potable water from it.
I know that some of its components, like ammonia, can be found of the resulting liquid but couln't we just heat urine at a certain temperature so it is just the water that is distillated?

Thank you

Jaime
 
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You can, but don't ever try it. It's the most disgusting thing in the world.
 
Cuauhtemoc said:
You can, but don't ever try it. It's the most disgusting thing in the world.
You're an astronaut on the space station? :wink:
 
When I was a kid I watched a documentary on the urine purifier that NASA uses, as part of the test they used a machine to measure the purity of water and compared the purified urine to tap water. The former was purer than the later by several orders of magnitude.
 
Evo said:
You're an astronaut on the space station? :wink:

Haha, I mean, at the space station they surely have a good way of doing it, but don't try to do it at your lab or something.
 
I doubt it's a single distillation step. With any distillation process, the idea is to gradually raise the temperature to evaporate off the volatile components in stages and collect the fractions of distillate. I haven't ever felt the need to look into the boiling temperatures of the components of urine, but there are probably a few that would be in earlier fractions than the water. Though, it probably falls very strongly in the "don't try this at home" category, unless you really hate your neighbors. I'm sure the process doesn't smell very nice.
 

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