Re:NASA’s Webb finds carbon source on surface of Jupiter’s m...
by kolinko on Friday September 22, 2023 @02:32AM
(#37608613)
They also do it in Singapore iirc.
Re:NASA’s Webb finds carbon source on surface of Jupiter’s m...
by thombat on Friday September 22, 2023 @05:14AM
(#37609754)
I'm curious why this would be worthwhile: since Singapore is an island conventional desalination would seem easier than either coping with the witches' brew of sewage (random amounts of random chemicals) or the expense of plumbing urine separately.
Re:NASA’s Webb finds carbon source on surface of Jupiter’s m...
by Cthulhu_ on Friday September 22, 2023 @05:37AM
(#37609902)
Seem being the key word here; if it's plain sewage, there's affordable, scalable and relatively low energy ways to turn it back into clean drinking water, vs desalinization which requires a lot of energy still.
But it's not just sewage though, it's chemicals as well, e.g. from medication, plus whatever else gets flushed.
Re:NASA’s Webb finds carbon source on surface of Jupiter’s m...
by thombat on Friday September 22, 2023 @06:58AM
(#37610427)
Exactly: all the sewage systems I know of process it enough to dump into a sea or river, where even if a downstream town draws drinking water from it the dilution with other water plus additional environmental chemistry reduces the purification problem.
In Singapore's case the sea is the obvious sink for treated sewage, which kicks it back to desalination. Except that I believe that Singapore's water comes across the causeway to the mainland in a pipe.
It is possible to recycle urine into drinkable water. That’s what they do in international space station where water is very precious.
https://www.nasa.gov/mission_pages/station/research/news/wat...