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Urine pretreatment for waste water processing systemsRecovery of high quality water from urine is an essential part of life support on a Space Station to avoid costly launch and resupply penalties. Water can be effectively recovered from urine by distillation following pretreatment by a chemical agent to inhibit microorganism contamination and fix volatile ammonia constituents. This paper presents the results of laboratory investigations of several pretreatment chemicals which were tested at several concentration levels in combination with sulfuric acid in urine. The optimum pretreatment formulation was then evaluated with urine in the Hamilton Standard Thermoelectric Integrated Membrane Evaporation Subsystem (TIMES). Over 2600 hours of test time was accumulated. Results of these laboratory and system tests are presented in this paper.
Document ID
19840046261
Document Type
Conference Paper
Authors
Winkler, H. E. (Hamilton Standard Div., United Aircraft Corp. Windsor Locks, CT, United States)
Verostko, C. E. (NASA Johnson Space Center Houston, TX, United States)
Dehner, G. F. (United Technologies Corp. Hamilton Standard Div., Windsor Locks, CT, United States)
Date Acquired
August 12, 2013
Publication Date
July 1, 1983
Subject Category
MAN/SYSTEM TECHNOLOGY AND LIFE SUPPORT
Report/Patent Number
SAE PAPER 831113
Distribution Limits
Public
Copyright
Other