Adsorption Equilibrium Modeling of Space Station Wastewaters
Publication: Journal of Environmental Engineering
Volume 125, Issue 6
Abstract
An adsorption equilibrium model was developed for predicting the total organic carbon (TOC) removal by the International Space Station water processor's multifiltration beds. Ideal adsorbed solution theory is used to describe the competitive interactions between fictive components (FCs) that make up the TOC. The FC physical properties were based on several identified compounds to represent the distribution adsorbing compounds in the wastewaters. The TOC isotherms were performed using the wastewaters on three absorbents (a coconut-based granular activated carbon, a coal-based granular activated carbon, and a polymeric-based resin), which are contained in the multifiltration beds. The isotherms were used to validate the model for all three adsorbents. The FCs were determined in such a way that they can describe the TOC concentration for multiple beds in series.
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Information & Authors
Information
Published In
Journal of Environmental Engineering
Volume 125 • Issue 6 • June 1999
Pages: 540 - 547
History
Received: Dec 8, 1997
Published online: Jun 1, 1999
Published in print: Jun 1999
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