NDLI: Catalytic methods using molecular oxygen for treatment of pmms and eclss waste streams, volume 2

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Catalytic methods using molecular oxygen for treatment of pmms and eclss waste streams, volume 2

Content Provider	NASA Technical Reports Server (NTRS)
Author	Akse, James R.
Copyright Year	1992
Description	Catalytic oxidation has proven to be an effective addition to the baseline sorption, ion exchange water reclamation technology which will be used on Space Station Freedom (SSF). Low molecular weight, polar organics such as alcohols, aldehydes, ketones, amides, and thiocarbamides which are poorly removed by the baseline multifiltration (MF) technology can be oxidized to carbon dioxide at low temperature (121 C). The catalytic oxidation process by itself can reduce the Total Organic Carbon (TOC) to below 500 ppb for solutions designed to model these waste waters. Individual challenges by selected contaminants have shown only moderate selectivity towards particular organic species. The combined technology is applicable to the more complex waste water generated in the Process Materials Management System (PMMS) and Environmental Control and Life Support System (ECLSS) aboard SSF. During the phase 3 Core Module Integrated Facility (CMIF) water recovery tests at NASA MSFC, real hygiene waste water and humidity condensate were processed to meet potable specifications by the combined technology. A kinetic study of catalytic oxidation demonstrates that the Langmuir-Hinshelwood rate equation for heterogeneous catalysts accurately represent the kinetic behavior. From this relationship, activation energy and rate constants for acetone were determined.
File Size	55662247
Page Count	216
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19940028191
Archival Resource Key	ark:/13960/t3qv8fg89
Language	English
Publisher Date	1992-05-12
Access Restriction	Open
Subject Keyword	Man/system Technology And Life Support Life Support Systems Water Treatment Catalysts Reaction Kinetics Carbon Dioxide Space Station Freedom Oxidation Catalysis Water Reclamation Waste Water Organic Compounds Environmental Control Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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