ABSTRACT
Environmental Control and Life Support System (ECLSS) is the NASA terminology for the systems which allow people to exist and work in confined spaces and in uninhabited locations and hostile environments. These systems supply air, water, temperature and humidity controls to enable personnel to survive and work under hostile conditions. The purpose of this paper is to review the various devices that have been developed for the recovery and reuse of liquid wastes in spacecraft and space stations, and their possible terrestrial applications.
