Predicting the performance of fixed-bed granular activated carbon adsorbers

Granular Activated Carbon (GAC) adsorption is an effective treatment technology for the removal of Synthetic Organic Chemicals (SOCs) from drinking water supplies. This treatment process can be expensive if not properly designed. Application of mathematical models is an attractive method to evaluate...

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Bibliographic Details
Published in:Water Science & Technology 1997, Vol.35 (7), p.235-241
Main Authors: HAND, D. W, CRITTENDEN, J. C, HOKANSON, D. R, BULLOCH, J. L
Format: Article
Language:English
Subjects:
Activated carbon
Applied sciences
Drinking water
Drinking water and swimming-pool water. Desalination
Dye dispersion
Exact sciences and technology
Mass transfer
Mathematical models
Modelling
Organic chemicals
Organic chemistry
Parameter estimation
Parameters
Performance prediction
Pollution
Process variables
Removal
Surface diffusion
Water supply
Water treatment and pollution
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Summary:Granular Activated Carbon (GAC) adsorption is an effective treatment technology for the removal of Synthetic Organic Chemicals (SOCs) from drinking water supplies. This treatment process can be expensive if not properly designed. Application of mathematical models is an attractive method to evaluate the impact of process variables on process design and performance. In this study, a mathematical modeling methodology incorporating the pore and surface diffusion model (PSDM) is proposed for known mixtures in fixed-bed adsorbers. Thermodynamic correlations for estimation of equilibrium parameters and empirical correlations for estimation of mass transfer parameters are presented. The PSDM was successfully compared to a 6-component mixture for empty bed contact times (EBCTs) of 2.4, 4.9, and 9.56 minutes.
ISSN:0273-1223
1996-9732
DOI:10.1016/S0273-1223(97)00136-4