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The paper deals with the construction and performance data of the service module Zvezda water supply system of the International Space Station (ISS). The performance data at an initial phase of manned station functioning are provided. The data on humidity condensate and recovered water composition are reviewed. The water supply and demand balance are analyzed. The effective cooperation of international partners on part of water supply for the crew is shown.

The paper deals with the performance data of the service module Zvezda water supply and urine collection systems of the International Space Station (ISS) as of December 31, 2002. The water supply and demand balance are analyzed. The data of humidity condensate and recovered water compositions are reviewed. The effective cooperation of the international partners on part of life support is shown.

The paper deals with the construction and performance data of the service module Zvezda water and oxygen supply systems of the International Space Station (ISS). The performance data at the first 14 months of manned station functioning are provided. The data of humidity condensate and recovered water compositions are reviewed. The water supply and demand balance are analyzed. The system of oxygen generation “Electron-VM” and its functioning results are reviewed. The effective cooperation of the international partners on part of life support is shown.

A concept of LSS building for planetary stations is suggested on the basis of experience in the development, research and testing of physical/chemical regenerative LSS for long-duration ground-based bio-technical complexes of habitat support and for orbiting space stations. A gradual transition from integrated physical/chemical regenerative LSS to hybrid integrated physical/chemical and bio-technical LSS and finally to integrated bio-technical regenerative LSS, is suggested. It is shown that at all phases of integrated LSS development, the systems based on physical/chemical processes will be critical for correlating the interfaces between the biological components that process the products obtained in the bio-components, and enabling the vitality of integrated LSS under emergency situations. The interface of integrated LSS with base power supply system is outlined.

This paper reviews the design and properties of the Water Supply System (WSS). It also discusses the water balance and its delivery amounts, as well as it presents diagrams and properties of water recovery system from humidity condensate WRS-CM and regeneration from urine WRS-UM which are the part of WSS. Some results of activities conducted for provision of water intake in a system of WRS-CM from different modules of station are shown and the problems of WSS interaction of Russian segment (RS) and American segment (USOS) of the International Space Station (ISS) are discussed.