Multilayer adsorption of slightly soluble organic compounds from aqueous solutions

Journal Article · Mon Mar 25 04:00:00 EST 1996 · Journal of Colloid and Interface Science

DOI:https://doi.org/10.1006/jcis.1996.0175· OSTI ID:238023

Aranovich, G L; Donohue, M D ^[1]

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1. Johns Hopkins Univ., Baltimore, MD (United States). Dept. of Chemical Engineering

Adsorption isotherms are analyzed for slightly soluble organic components from water for a wide range of reduced concentrations. It is shown that the behavior of these systems can be modeled by an equation of the form a = Ac/[(1 + Bc)(1 {minus} c/c{sub 0}){sup d}] over the range of c/c{sub 0} from about 0.05 to 0.9. Here a is the adsorption amount, c is the concentration of organic compound in the water, c{sub 0} is a solubility limit for the organic compound, and A, B, and d are adjustable parameters. Comparison is made with experimental data for the adsorption of n-caproic acid, n-valeric acid, n-amyl alcohol, n-butyl alcohol, aniline, cyclohexanol, and phenol from aqueous solutions on carbon adsorbents.

• DOE Contract Number: FG02-87ER13777
• OSTI ID: 238023
• Journal Information: Journal of Colloid and Interface Science, Journal Name: Journal of Colloid and Interface Science Journal Issue: 2 Vol. 178; ISSN 0021-9797; ISSN JCISA5
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
ACTIVATED CARBON
ADSORPTION
ADSORPTION ISOTHERMS
ALCOHOLS
ANILINE
MATHEMATICAL MODELS
ORGANIC ACIDS
PHENOL
SORPTIVE PROPERTIES
WATER TREATMENT