NDLI: Electrochemical processing of solid waste (Document No: 19880006470)

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Electrochemical processing of solid waste (Document No: 19880006470)

Content Provider	NASA Technical Reports Server (NTRS)
Author	Kaba, L. Bockris, J. OM Hitchens, G. D.
Copyright Year	1988
Description	The investigation into electrolysis as a means of waste treatment and recycling on manned space missions is described. The electrochemical reactions of an artificial fecal waste mixture was examined. Waste electrolysis experiments were performed in a single compartment reactor, on platinum electrodes, to determine conditions likely to maximize the efficiency of oxidation of fecal waste material to CO2. The maximum current efficiencies for artificial fecal waste electrolysis to CO2 was found to be around 50 percent in the test apparatus. Experiments involving fecal waste oxidation on platinum indicates that electrodes with a higher overvoltage for oxygen evolution such as lead dioxide will give a larger effective potential range for organic oxidation reactions. An electrochemical packed column reactor was constructed with lead dioxide as electrode material. Preliminary experiments were performed using a packed-bed reactor and continuous flow techniques showing this system may be effective in complete oxidation of fecal material. The addition of redox mediator Ce(3+)/Ce(4+) enhances the oxidation process of biomass components. Scientific literature relevant to biomass and fecal waste electrolysis were reviewed.
File Size	1158645
Page Count	39
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19880006470
Archival Resource Key	ark:/13960/t3nw4c100
Language	English
Publisher Date	1988-02-01
Access Restriction	Open
Subject Keyword	Inorganic And Physical Chemistry Electrolysis Waste Treatment Carbon Dioxide Electrochemistry Feces Manned Space Flight Oxidation-reduction Reactions 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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