Development of a Two-Stage Membrane-Based Wash-Water Reclamation Subsystem

by S. B. McCray, Bend Research Inc, United States,
D. D. Newbold, Bend Research Inc, United States,
R. J. Ray, Bend Research Inc, United States,



Document Type: Proceeding Paper

Part of: Engineering, Construction, and Operations in Space

Abstract:

A two-stage membrane-based subsystem was designed and constructed to enable the recycle of wash waters generated in space. The first stage is a fouling-resistant tube-side-feed hollow-fiber ultrafiltration module, and the second stage is a spiral-wound reverse-osmosis module. Throughout long-term tests, the subsystem consistently produced high-quality permeate, processing actual wash water to 95% recovery.

Subject Headings: Water reclamation | Water treatment | Membranes | Space life support systems | Filtration | Recycling | Osmosis

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