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Main Title Adsorption of organic cations to soils and subsurface materials
Author Westall, J. C. ; Brownawell, B. J. ; Chen, H. ; Collier, J. M. ; Hatfield, J.
Other Authors
Author Title of a Work
Westall, John C.
CORP Author Oregon State Univ., Corvallis. Dept. of Chemistry.;Robert S. Kerr Environmental Research Lab., Ada, OK.
Publisher Robert S. Kerr Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency ;
Year Published 1990
Report Number EPA/600/2-90/004; EPA-R-814501
Stock Number PB90-171927
OCLC Number 23815769
Subjects Cations--Metabolism ; Organic compounds--Environmental aspects
Additional Subjects Adsorption ; Cations ; Soil analysis ; Industrial plants ; Sorbents ; Organic compounds ; Waste disposal ; Surfactants ; Aquifers ; Metals ; Physical properties ; Mineral clays ; Distribution theory ; Minerals ; Kaolinite ; Silicon dioxide ; Aluminum oxide ; Montmorillonite ; Land pollution ; Environmental transport ; Path of pollutants ; Subsurface environments ; Consumer products ; Remedial action ; Pyridinium compounds
Library Call Number Additional Info Location Last
EMBD  EPA/600/2-90/004 NRMRL/GWERD Library/Ada,OK 11/29/1991
NTIS  PB90-171927 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation v, 82 p. : ill. ; 28 cm.
A study of the fundamentals of adsorption of amphiphilic organic cations on natural and pristine surfaces was conducted to elucidate the factors that influence the extent of adsorption and indirect effects of adsorption of organic cations: the competitive adsorption of organic cations and metal cations and enhanced adsorption of hydrophobic organic compounds on mineral surfaces coated with organic cations. The sorbents studied were kaolinite, montmorillonite, silica, alumina, a soil, and two aquifer materials. The distribution ratio of the alkylpyridinium depended strongly on the nature and concentration of inorganic cations in solution, but solution pH had little effect. The adsorption isotherms were distinctly nonlinear. The adsorption of dodecylpyridinium in the presence of various concentrations of slats was described quantitatively with a multisite competitive ion-exchange model. Dodecylpyridinium was found to displace Cu(II) effectively from Lula aquifer material when the surface concentration of dodecylpyridinium is within 10-100% of the adsorption maximum. Dodecylpyridinium on Lula aquifer material enhanced the sorption of chlorobenzenes.
"February 1990." "Cooperative agreement no. CR-814501." "EPA/600/2-90/004" PB90-171927 Includes bibliographical references (p. 77-82).