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Sorption of Linear Alkylbenzenesulfonates on Sediment Materials
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Section:Abstract
Linear alkylbenzenesulfonates (LAS) are anionic surfactants that are used in large quantities in industrial and consumer products. They enter the environment primarily through wastewater and sludge. In this study, the sorption of LAS to the surfaces of sediment particles was investigated as a function of LAS homologue, H+ concentration in solution, Ca2+ concentration in solution, sediment properties, and concentration of solids. Evidence for both hydrophobic and specific or electrostatic interactions was seen. Isotherms were generally nonlinear and were represented well by the Freundlich and the virial (electrostatic) equations. Comparisons of apparent distribution ratios, D (L/kg), for linear portions of the isotherms showed Δ log D/Δ log nCH2 ≈ 0.4, Δ log D/Δ log [H+] ≈ 0.17, and Δ log D/Δ log [Ca2+] ≈ 0.23. The value of D for different sediments seemed to correlate most closely with the organic carbon content (foc) of the sediments. The value of the distribution ratio increased with the concentration of solids in the system; this effect could be explained partially by the concomitant increase in Ca2+ concentration in solution.
Citing Articles
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This article has been cited by 9 ACS Journal articles (5 most recent appear below).
Predicting Sediment Sorption Coefficients for Linear Alkylbenzenesulfonate Congeners from Polyacrylate−Water Partition Coefficients at Different Salinities
Ángeles Rico-Rico, Steven T. J. Droge and Joop L. M. HermensEnvironmental Science & Technology2010 44 (3), 941-947Predicting Sediment Sorption Coefficients for Linear Alkylbenzenesulfonate Congeners from Polyacrylate−Water Partition Coefficients at Different Salinities
Ángeles Rico-Rico, Steven T. J. Droge and Joop L. M. HermensEnvironmental Science & Technology2010 44 (3), 941-947The effect of the molecular structure and the salinity on the sorption of the anionic surfactant linear alkylbenzenesulfonate (LAS) to marine sediment has been studied. The analysis of several individual LAS congeners in seawater and of one specific LAS ...
pH-Dependent Sorption of Acidic Organic Chemicals to Soil Organic Matter
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Partitioning Behavior of Per- and Polyfluoroalkyl Compounds between Pore Water and Sediment in Two Sediment Cores from Tokyo Bay, Japan
Lutz Ahrens, Nobuyoshi Yamashita, Leo W. Y. Yeung, Sachi Taniyasu, Yuichi Horii, Paul K. S. Lam and Ralf EbinghausEnvironmental Science & Technology2009 43 (18), 6969-6975Partitioning Behavior of Per- and Polyfluoroalkyl Compounds between Pore Water and Sediment in Two Sediment Cores from Tokyo Bay, Japan
Lutz Ahrens, Nobuyoshi Yamashita, Leo W. Y. Yeung, Sachi Taniyasu, Yuichi Horii, Paul K. S. Lam and Ralf EbinghausEnvironmental Science & Technology2009 43 (18), 6969-6975The partitioning behavior of per- and polyfluoroalkyl compounds (PFCs) between pore water and sediment in two sediment cores collected from Tokyo Bay, Japan, was investigated. In addition, the fluxes and temporal trends in one dated sediment core were ...
Effects of Linear Alkylbenzene Sulfonate on the Sorption of Brij 30 and Brij 35 onto Aquifer Sand
Shweta Tripathi and Derick G. BrownEnvironmental Science & Technology2008 42 (5), 1492-1498Effects of Linear Alkylbenzene Sulfonate on the Sorption of Brij 30 and Brij 35 onto Aquifer Sand
Shweta Tripathi and Derick G. BrownEnvironmental Science & Technology2008 42 (5), 1492-1498LAS strongly enhances Brij sorption onto sand at Brij concentrations below the CMC but has minimal effect on sorption at Brij concentrations above the CMC.
Modeling Sorption of Anionic Surfactants onto Sediment Materials: An a priori Approach for Perfluoroalkyl Surfactants and Linear Alkylbenzene Sulfonates
Christopher P. Higgins and Richard G. LuthyEnvironmental Science & Technology2007 41 (9), 3254-3261Modeling Sorption of Anionic Surfactants onto Sediment Materials: An a priori Approach for Perfluoroalkyl Surfactants and Linear Alkylbenzene Sulfonates
Christopher P. Higgins and Richard G. LuthyEnvironmental Science & Technology2007 41 (9), 3254-3261A mechanistically derived model predicting the sorption of anionic surfactants to sediments was developed and evaluated for three classes of surfactants: perfluoroalkyl carboxylates, perfluoroalkyl sulfonates, and linear alkylbenzene sulfonates. The ...
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History
- Published In Issue September 15, 1999
- Received for review April 27, 1998
Revised manuscript received January 6, 1999
Accepted January 20, 1999
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