Accession Number : AD0285220

Title :   WATER RECOVERY FROM PHYSIOLOGICAL SOURCES FOR SPACE APPLICATIONS

Corporate Author : AEROSPACE MEDICAL RESEARCH LABS WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : SLONIM,A.R. ; HALLAM,A.P.

Report Date : JUL 1962

Pagination or Media Count : 1

Abstract : The recovery of water from urine and other liquid wastes is reviewed. Various techniques of water recovery are described under the following categories: change of phase (e.g., liquid-solid), membrane, diffusion, and combination (e.g., vapor treatment-distillation) processes. Logistics considerations for manned space systems are discussed. Generally, all water recovery techniques are deficient in one or more factors for space vehicle applications. Some require orientation of space craft, much power, large radiation panels, replaceable parts, complex mechanical design and/or considerable chemical treatment of water. Several processes appear promising, such as vacuum pyrolysis, electrolysis combined with combustion, and freeze drying. Of these, the vacuum pyrolysis method, in which potable water was produced from mixed human wastes and wash water, is operationally the most advanced. Nevertheless, no proce s has been developed that is fully operational at this time. (Author)

Descriptors :   *CLOSED-CYCLE ECOLOGICAL SYSTEMS, *URINE, *WATER, METABOLISM, PROCESSING, PYROLYSIS, RECOVERY, SPACE ENVIRONMENTS, SPACECRAFT, TEST METHODS, VACUUM APPARATUS

Distribution Statement : APPROVED FOR PUBLIC RELEASE