World Solve — A living repository of problems worth solving.

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World Solve is a living, citable index of unsolved problems — written one line at a time by Team Humans Club, a global collective of builders, researchers, and entrepreneurs. We do not solve the problems here. We Democratize Innovation.

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Recycling water from human sweat and urine in space yields toxic trace contaminants over time.

open Global / Unspecified, Global

Current life support distillation systems build up volatile organics and salts, degrading filtration membranes quickly. Next-generation electrochemical and enzymatic water purification systems are needed.

water recycling human sweat urine science-space

WS02107 · Logged by Ian Patel on 2026-07-22T08:00:00Z · Horizon: 2027 · Working on: 0

Citation ID: WS02107 Title: Recycling water from human sweat and urine in space yields toxic trace contaminants over time. URL: https://worldsolve.org/index.php?api=problem&id=2107

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2165 public problems
2165 open challenges
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