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Sci Total Environ

Title:		Sediment-air equilibrium partitioning of semi-volatile hydrophobic organic compounds. Part 1. Method development and water vapor sorption isotherm
Author(s):		de Seze G; Valsaraj KT; Reible DD; Thibodeaux LJ;
Address:		"Department of Chemical Engineering and Hazardous Substances Research Center (S and SW), Louisiana State University, Baton Rouge 70803, USA"
Journal Title:		Sci Total Environ
Year:		2000
Volume:		253
Issue:		1-Mar
Page Number:		15 - 26
DOI:		10.1016/s0048-9697(00)00362-4
ISSN/ISBN:		0048-9697 (Print) 0048-9697 (Linking)
Abstract:		"Contaminated sediments that become exposed to air as a result of dredging and disposal in confined disposal facilities are potential sources of air pollution. A critical parameter to develop emission estimation models is the equilibrium partition coefficient of contaminants, between sediment and air. In this first of two articles, we present a method, based on gas saturation in a flowing stream, to study both the adsorption of water and semi-volatile organic compounds on a sediment from the Campus Lake, Baton Rouge, LA, USA. The experimental set-up was used to determine the adsorption isotherm for water partitioning between sediment and pore-air. A detailed characterization of the sediment surface area and pore volume was used to develop an adsorption-condensation model for predicting water sorption on sediment. The model was used to estimate the importance of water adsorption on mineral surfaces and condensation in pores. This information serves, in the accompanying second article in the series, as the basis for the modeling of the partitioning of phenanthrene, and dibenzofuran"
Keywords:		"Adsorption Air Pollutants/*analysis Geologic Sediments/*chemistry Louisiana Models, Chemical Organic Chemicals/*chemistry Refuse Disposal Soil Pollutants/*analysis Solubility Thermodynamics Volatilization Water/*chemistry;"
Notes:		"Medlinede Seze, G Valsaraj, K T Reible, D D Thibodeaux, L J eng Research Support, U.S. Gov't, Non-P.H.S. Netherlands 2000/06/08 Sci Total Environ. 2000 May 15; 253(1-3):15-26. doi: 10.1016/s0048-9697(00)00362-4"