Temperature-dependent sorption of naphthalene, phenanthrene, and pyrene to low organic carbon aquifer sediments

Article Abstract:

A study was conducted on the influence of temperature on the degree and rate of sorption in the polycyclic aromatic hydrocarbons naphthalene, phenanthrene and pyrene to low organic carbon aquifer sands. Batch and column sorption experiments were conducted as complimentary approaches to determine equilibrium distribution coefficients and sorption rate constants. Results suggested that thermal gradients may not have significant consequences in majority of saturated subsurface regimes when predicting solute transport.

Aquifers, Temperature

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Sorption of nonionic, hydrophobic organic chemicals to mineral surfaces

Article Abstract:

A study of the sorption of nonionic hydrophobic organic chemicals to mineral surfaces was found to be dependent on the type of mineral surface and independent of solution pH and the charge and magnitude of sorbent surface charge. This conclusion was reached after different polycyclic aromatic hydrocarbons and chlorobenzenes were subjected to sorption studies on pure mineral substrates, such as alpha-Al2O3 and alpha-Fe2O3, using column chromatography.

Water Supply and Irrigation Systems, Waste Management and Remediation Services, Water supply, Industrial Organic Chemicals, Cyclic crudes and intermediates, Cyclic Crude and Intermediate Manufacturing, Hydrocarbon Pollutants NEC, Aromatic Hydrocarbons, Chlorobenzenes, Reservoirs, Usage, Environmental aspects, Pollution, Mineralogical research, Hydrocarbon pollutants, Soil absorption and adsorption, Soil science, Chromatography, Reservoirs (Water), Chlorobenzene, Water-storage, Water storage

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Application of headspace analysis to the study of sorption of hydrophobic organic chemicals to alpha-Al2O3

Article Abstract:

The sorption of hydrophobic organic chemicals to alpha-Al2O3 was studied using the headspace analysis technique. The results showed that benzene interacted weakly with well-characterized aluminum oxide. When the sorption coefficients were extrapolated up to the solids concentrations normally used in batch sorption experiments, the sorption coefficients agreed with reported data.

Organic compounds

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