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Selective removal of organics for water reclamationElectrooxidation is a means of removing organic solutes directly from waste waters without the use of chemical expendables. The feasibility of the concept for oxidation of organic impurities common to urine, shower waters and space habitat humidity condensates was demonstrated. Electrooxidation of urine and waste water ersatz was experimentally demonstrated. The electrooxidation principle, reaction kinetics, efficiency, power, size, experimental test results and water reclamation applications are described. Process operating potentials and the use of anodic oxidation potentials that are sufficiently low to avoid oxygen formation and chloride oxidation are also described. The design of a novel electrochemical system that incorporates a proton exchange membrane (PEM) electrolyte is presented based on parametric test data and current fuel cell technology.
Document ID
19900014481
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Murphy, Oliver J.
(Texas A&M Univ. College Station., United States)
Hitchens, G. Duncan
(Texas A&M Univ. College Station., United States)
Kaba, Lamine
(Texas A&M Univ. College Station., United States)
Verostko, Charles E.
(NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Date Acquired
September 6, 2013
Publication Date
June 1, 1990
Subject Category
Environment Pollution
Report/Patent Number
NAS 1.15:101890
NASA-TM-101890
Accession Number
90N23797
Funding Number(s)
CONTRACT_GRANT: NAG9-350
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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