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dc.contributor.authorHe, Limingen_US
dc.date.accessioned2005-11-10en_US
dc.date.accessioned2014-03-14T21:23:04Z
dc.date.available2005-11-10en_US
dc.date.available2014-03-14T21:23:04Z
dc.date.issued1995-10-15en_US
dc.date.submitted2005-11-10en_US
dc.identifier.otheretd-11102005-141116en_US
dc.identifier.urihttp://hdl.handle.net/10919/40310
dc.description.abstractProcesses occurring at mineral-water interfaces play critical roles for regulating the composition of surface and groundwater, for soil development, and for the availability of plant nutrients. Sulfate adsorption at three pH levels was conducted on y-AI203 and kaolinite. The adsorption isotherms were described well by the simple Langmuir, two-site Langmuir, Freundlich, and Temkin equations. The capacity of SO42-adsorption for y-AI203 was five times greater than for kaolinite, indicating the difference in reactive site density between y-Ab03 and kaolinite. Mathematical analyses for the adsorption isothenns demonstrated that S042- may not be adsorbed on the d-plane, i.e., in the diffuse layer, whereas both outer- and inner-sphere complexation mechanisms predicted S042- adsorption equally well.en_US
dc.format.mediumBTDen_US
dc.publisherVirginia Techen_US
dc.relation.haspartLD5655.V856_1995.H3.pdfen_US
dc.subjectmineral-water interfaceen_US
dc.subject.lccLD5655.V856 1995.H3en_US
dc.titleAdsorption of sulfate and phosphate at the mineral-water interface : isotherm, stoichiometry, and modelsen_US
dc.typedissertationen_US
dc.contributor.departmentCrop and Soil Environmental Sciencesen_US
thesis.degree.namePhDen_US
thesis.degree.leveldoctoralen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
dc.contributor.committeememberBaligar, V. C.en_US
dc.contributor.committeememberRitchey, K. Daleen_US
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-11102005-141116/en_US
dc.contributor.committeecochairZelazny, Lucian W.en_US
dc.contributor.committeecochairMartens, David C.en_US


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