Thermodynamic Considerations in the Sorption of Organic Contaminants by Soils and Sediments. 1. The Isosteric Heat Approach and Its Application to Model Inorganic Sorbents

• Published in: Environmental science & technology Vol. 31; no. 11; pp. 3238 - 3243
• Main Authors: Huang, Weilin, Weber, Walter J
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 01.11.1997
• Subjects: Applied sciences; Biological and physicochemical properties of pollutants. Interaction in the soil; CONTAMINANTES; Exact sciences and technology; POLLUANT; POLLUTANTS; Pollution; SEDIMENT; SEDIMENTO; Sediments; SOIL; Soil and sediments pollution; soil biology; Soils; SOL; SORCION; SORPTION; SUELO; Thermodynamics; waste management; Phenanthrene; Hydrocarbon; Enthalpy; Inorganic adsorbent; Hydrophobicity; Soil pollution; Sediments; Sorption; Thermodynamic parameter; Freundlich isotherm; Aqueous solution; Heat of adsorption; Organic compounds

Isosteric heats of sorption of phenanthrene from aqueous solution were determined for a hydrophobic sorbent (graphite) and for four hydrophilic sorbents (α-Al2O3 and three mesoporous silica gels). The Clausius−Clapeyron equation was used in conjunction with temperature-corrected aqueous-phase solute...