Contaminant Permeation in the Ionomer-Membrane Water Processor (IWP) System

The Ionomer-membrane Water Processor (IWP) is a patented membrane-distillation based urine brine water recovery system. The unique properties of the IWP membrane pair limit contaminant permeation from the brine to the recovered water and purge gas. A paper study was conducted to predict volatile tra...

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Published inNASA Center for AeroSpace Information (CASI). Conference Proceedings
Main Authors Kelsey, Laura K, Finger, Barry W, Pasadilla, Patrick, Perry, Jay
Format Conference Proceeding
LanguageEnglish
Published Hampton NASA/Langley Research Center 10.07.2016
Subjects
Contaminants
Distillation
Distilled water
International Space Station
Microprocessors
Penetration
Pretreatment
Saline water
Trace contaminants
Urine
Water quality
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Abstract The Ionomer-membrane Water Processor (IWP) is a patented membrane-distillation based urine brine water recovery system. The unique properties of the IWP membrane pair limit contaminant permeation from the brine to the recovered water and purge gas. A paper study was conducted to predict volatile trace contaminant permeation in the IWP system. Testing of a large-scale IWP Engineering Development Unit (EDU) with urine brine pretreated with the International Space Station (ISS) pretreatment formulation was then conducted to collect air and water samples for quality analysis. Distillate water quality and purge air GC-MS results are presented and compared to predictions, along with implications for the IWP brine processing system.
AbstractList The Ionomer-membrane Water Processor (IWP) is a patented membrane-distillation based urine brine water recovery system. The unique properties of the IWP membrane pair limit contaminant permeation from the brine to the recovered water and purge gas. A paper study was conducted to predict volatile trace contaminant permeation in the IWP system. Testing of a large-scale IWP Engineering Development Unit (EDU) with urine brine pretreated with the International Space Station (ISS) pretreatment formulation was then conducted to collect air and water samples for quality analysis. Distillate water quality and purge air GC-MS results are presented and compared to predictions, along with implications for the IWP brine processing system.
Author Finger, Barry W
Pasadilla, Patrick
Kelsey, Laura K
Perry, Jay
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SubjectTerms Contaminants
Distillation
Distilled water
International Space Station
Microprocessors
Penetration
Pretreatment
Saline water
Trace contaminants
Urine
Water quality
Title Contaminant Permeation in the Ionomer-Membrane Water Processor (IWP) System
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