Catalytic Oxidation of Semi-Volatile Aqueos Phase Compounds by the ISS Water Processor

Ferner, Kathy; Parker, David; Snowdon, Doug

doi:10.4271/961514

Cited by 5 publications

(1 citation statement)

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“…WPA and OGA use components that consist of a series of granular packed beds. WPA consists of components including the MultiFiltration (MF) system and Volatile Removal Apparatus 150 MALLA AND ANANDAKUMAR which are then removed via ion exchange resin beds (7).…”

Section: Introductionmentioning

confidence: 99%

Experimental Studies of Load-Displacement Behavior of Water Processing Granular Activated Alumina Beds for Space Life Support Systems

Malla¹,

Anandakumar²

2008

habitation (elmsford)

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Long-term human missions to space need advanced life support systems to generate and recycle critical elements like oxygen and water. The water processing assembly aboard the Space Station makes use of granular packed beds to process/recycle water. This article presents results from an experimental study of dry granular activated alumina (AA) packed beds that have application for water processing. Laboratory tests performed included particle size distribution, direct shear, axial loading/unloading, and friction mobilization tests. It is found that internal friction of the media increases with increasing initial compaction. The interface friction coeffi cient between AA and the housing cylinder wall shows modest change with increase in compaction. The load-displacement behavior of the full-scale bed is nonlinear for low compaction but becomes linear for high compacted media. The axial displacement at the loading end of the bed increases with decrease in initial compaction. The amount of fi nes generated in the media increases with decrease in initial compaction. Friction mobilizing force between AA and the housing cylinder is found to be signifi cant and increases with initial compaction and bed length of the media.

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Section: Introductionmentioning

confidence: 99%