The Russian Vostok base base or the european Concordia base are already in quite similar environment: https://en.wikipedia.org/wiki/Vostok_Station https://en.w

The Russian Vostok base base or the european Concordia base are already in quite similar environment: https://en.wikipedia.org/wiki/Vostok_Station https://en.wikipedia.org/wiki/Vostok_Station https://en.wikipedia.org/wiki/Concordia_Station https://en.wikipedia.org/wiki/Concordia_Station And IIRC Concordia already tested some water recycling technology from ESA for example.