Effect of temperature on equilibrium adsorption of phenols onto nonionic polymeric resins

Journal Article · Tue Jun 01 00:00:00 EDT 1999 · Separation Science and Technology

DOI:https://doi.org/10.1081/SS-100100740· OSTI ID:682248

Juang, R S; Shiau, J Y; Shao, H J ^[1]

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1. Yuan Ze Univ., Chungli (Taiwan, Province of China). Dept. of Chemical Engineering

The amounts of equilibrium adsorption of phenol and 4-chlorophenol from aqueous solutions on nonionic polymeric resins were measured in the 288--318 K temperature range. In general, these polymeric resins have a higher capacity for 4-chlorophenol at low solute concentrations but for phenol at higher solute concentrations. The adsorption data for both phenols were presented in terms of the number of adsorbed monolayers and the fraction of pore volume filled due to poor fit by the widely used Langmuir, Freundlich, and BET equations over the entire concentration range (100--3,000 g/m{sup 3}). Finally the isoteric enthalpies of adsorption were determined. They decreased with increasing surface coverage.

• OSTI ID: 682248
• Journal Information: Separation Science and Technology, Vol. 34, Issue 9; Other Information: PBD: Jun 1999
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
54 ENVIRONMENTAL SCIENCES
PHENOL
ADSORPTION
CHLORINATED AROMATIC HYDROCARBONS
RESINS
TEMPERATURE DEPENDENCE
ADSORPTION ISOTHERMS
ADSORPTION HEAT