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Automated Water-Purification SystemReverse-osmosis system operates and maintains itself with minimal human attention, using programmable controller. In purifier, membranes surround hollow cores through which clean product water flows out of reverse-osmosis unit. No chemical reactions or phase changes involved. Reject water, in which dissolved solids concentrated, emerges from outer membrane material on same side water entered. Flow controls maintain ratio of 50 percent product water and 50 percent reject water. Membranes expected to last from 3 to 15 years.
Document ID
19880000544
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Ahlstrom, Harlow G.
(Caltech)
Hames, Peter S.
(Caltech)
Menninger, Fredrick J.
(Caltech)
Date Acquired
August 13, 2013
Publication Date
November 1, 1988
Publication Information
Publication: NASA Tech Briefs
Volume: 12
Issue: 10
ISSN: 0145-319X
Subject Category
Machinery
Report/Patent Number
NPO-17049
Accession Number
88B10544
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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