Mass transfer kinetics of adsorption on suspended solid particles
A kinetic model was designed for adsorption from liquid to spherical particles with consideration of effects of adsorbate concentration changes in the liquid on mass transfer, as it occurs in agitated batch adsorption. The mass transfer was formulated for Langmuir, Freundlich, and linear isotherms and solved numerically. Application of the theoretical results to adsorption of dextrose (Langmuir isotherms) and urea (linear isotherms) on carbon from dilute aqueous solutions under conditions resembling those of wastewater treatment gave results in good agreement with experimental adsorption results obtained at 0/sup 0/, 26/sup 0/, and 49/sup 0/C with untreated or oxidized Calgon Filtrasorb 300 carbon. The equilibrium amount of adsorbed dextrose was smaller on oxidized than on untreated carbon, and it was the same for urea on both carbon types.
- Research Organization:
- Lehigh Univ.
- OSTI ID:
- 5022728
- Journal Information:
- J. Colloid Interface Sci.; (United States), Vol. 63:3
- Country of Publication:
- United States
- Language:
- English
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37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ADSORPTION
KINETICS
WASTE WATER
SEPARATION PROCESSES
MASS TRANSFER
SUSPENSIONS
DISPERSIONS
HYDROGEN COMPOUNDS
LIQUID WASTES
OXYGEN COMPOUNDS
SORPTION
WASTES
WATER
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