Cosolvent effects on sorption of organic acids by soils from mixed solvents
Article Abstract:
The sorption of hydrophobic organic compounds (HOC) from mixed solvents are studied using reversed-phase chromatography. Methanol/ water solutions containing substituted chlorophenols and carboxylic acids are used as specimen. The conditional ionization constant of the chlorophenol and carboxylic acids are then obtained through the measurements of the solution's hydrogen content. The results show that the sorption of methanol increases with the addition of the substituted HOC.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1993
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Analytical method for the sorption of hydrophobic organic pollutants in clay-rich materials
Article Abstract:
The study of fine-grained materials is often hampered by problems caused by nonsettling particles during the measurement of sorption using traditional centrifugation-based methods. This complication can be eliminated by using a dialysis tubing for phase separation. When used in an experiment on the sorption of nonionic, hydrophobic organic compounds, particles were found to remain inside the tubing during equilibration, while the sorbate diffused through the tubing.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1995
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Sorption of organic pollutants on anthropogenic humic matter
Article Abstract:
The feasibility of using anthropogenic and natural humic materials as sorbents for organic pollutants in aqueous solutions was investigated. The materials' sorption coefficients were measured on the assumption that hydrophobic interaction forces dominate the sorption kinetics. The measured data were then analyzed using the solubility parameter concept. Results indicate that the materials' sorpion properties are influenced by the aromaticity of the aqueous solution.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1995
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