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Removal of sodium chloride from human urine via batch recirculation electrodialysis at constant applied voltageThe removal of sodium chloride (NaCl) from human urine using a six-compartment electrodialysis cell with batch recirculation mode of operation for use in advanced life support systems (ALSS) was studied. From the results obtained, batch recirculation at constant applied voltage yields high values (approximately 94% of NaCl removal. Based on the results, the initial rate of NaCl removal was correlated to a power function of the applied voltage: -r=2.0 x 10(-4)E(3.8). With impedance spectroscopy methods, it was also found that the anion membranes were more affected by fouling with an increase of the ohmic resistance of almost 11% compared with 7.4% for the cationic ones.
Document ID
20040093784
Acquisition Source
Kennedy Space Center
Document Type
Reprint (Version printed in journal)
Authors
Gordils-Striker, Nilda E.
(University of Puerto Rico, Mayaguez Campus, Department of Chemical Engineering Mayaguez, Puerto Rico)
Colon, Guillermo
Date Acquired
August 21, 2013
Publication Date
January 1, 2003
Publication Information
Publication: Habitation (Elmsford, N.Y.)
Volume: 9
Issue: 2-Jan
ISSN: 1542-9660
Subject Category
Man/System Technology And Life Support
Funding Number(s)
CONTRACT_GRANT: NAG10-0257
Distribution Limits
Public
Copyright
Other

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