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Related Experiment Videos

Water recovery in space.

C Tamponnet1, C J Savage, P Amblard

  • 1Thermal Control and Life Support Division, ESA Directorate for Technical and Operational Support, ESTEC, Noordwijk, The Netherlands.

ESA Bulletin. Bulletin ASE. European Space Agency
|December 1, 2001
PubMed
Summary

Spacecraft water recycling is crucial, as water is over 90% of life support. This study shows a membrane system can recover 95% of potable water from wastewater, eliminating microbes.

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Area of Science:

  • Spacecraft life support systems
  • Environmental engineering
  • Water purification technology

Background:

  • Water is a critical life-support consumable in manned spacecraft, comprising over 90% of consumables.
  • A significant portion (over 90%) of wastewater generated is only moderately or slightly contaminated.
  • Recovering potable water from wastewater offers substantial savings in resupply costs.

Purpose of the Study:

  • To develop and test a water-recovery system for manned spacecraft.
  • To assess the efficacy of membrane technology in purifying contaminated spacecraft wastewater.
  • To determine the percentage of potable water that can be recovered and its quality.

Main Methods:

  • Development of a water-recovery system prototype utilizing membrane technology.

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  • Testing the system with "real wastewater" specifically used shower water.
  • Analysis of recovered water for potability and microbial contamination, adhering to European Space Agency (ESA) standards.

    • Main Results:

    • Achieved approximately 95% recovery of potable water.
    • Recovered water met stringent European Space Agency (ESA) standards for potability.
    • Demonstrated complete elimination of microbial contaminants, including bacteria, spores, and viruses.

    Conclusions:

    • Membrane technology is highly effective for spacecraft water recycling.
    • The developed system can significantly reduce reliance on resupplied water, leading to cost savings.
    • The system ensures the safety and potability of recovered water, crucial for long-duration space missions.