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Twenty-nine recycled water, eight stored (ground-supplied) water, and twenty-eight humidity condensate samples were collected on board the Mir Space Station during the Phase One Program (1995-1998). These samples were analyzed to determine potability of the recycled and ground-supplied water, to support the development of water quality monitoring procedures and standards, and to assist in the development of water reclamation hardware. This paper describes and summarizes the results of these analyses and lists the lessons learned from this project. Results show that the recycled water and stored water on board Mir, in general, met NASA, Russian Space Agency (RSA), and U.S. Environmental Protection Agency (EPA) standards.

Separation of a two-phase gas/liquid flow stream into the respective gas and liquid constituents with minimum or no carryover is a necessary and challenging requirement in space vehicle life support systems in a micro-gravity environment. This paper will describe testing of two types of Russian MIR water separators in a one-gravity environment at conditions typical of each separator's MIR operating envelope. Presently on MIR, two types of two-phase separator designs, a static separator design and a rotary separator design, are used in several applications. The static separator design is used in the potable water processor. In addition, static separators are used in a carbon dioxide reduction system which is under development for MIR. A rotary separator design is used in both the urine processor and the hygiene water processor systems.