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dc.contributor.advisorDeng, Baolineng
dc.contributor.authorWang, Yi, M.S.eng
dc.contributor.otherUniversity of Missouri-Columbia. Graduate School. Theses and Dissertations. Theses. 2012 Theseseng
dc.date.issued2012eng
dc.date.submitted2012 Springeng
dc.descriptionTitle from PDF of title page (University of Missouri--Columbia, viewed on May 30, 2013).eng
dc.descriptionThe entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical general description, or public abstract, appears in the public.pdf file.eng
dc.descriptionThesis advisor: Dr. Baolin Dengeng
dc.descriptionIncludes bibliographical references.eng
dc.descriptionM.S. University of Missouri-Columbia 2012.eng
dc.descriptionDissertations, Academic -- University of Missouri--Columbia -- Civil engineering.eng
dc.description"May 2012"eng
dc.description.abstractMonosodium monomethylarsenate (MSMA (V)) is a common constitute in herbicides and pesticides used widely in the world, and yet its mobility and transport properties are still a relatively understudied area. Knowledge of the MSMA (V) sorption process is a key to understanding the properties. This research investigated the adsorption of MSMA (V) of soil samples collected at the USDA-ARS Dale Bumpers National Rice Research Center located near Stuttgart, Arkansas. Batch experiments were performed to evaluate the effect of Fe, phosphate, and pH conditions on MSMA (V) adsorption. The results indicate: 1) MSMA (V) was strongly adsorbed onto the whole soil ( no Fe removed), implying that adsorption is an important process controlling the MSMA (V) mobility in environments; 2) the reductive removal of iron minerals from the soil effectively eliminated MSMA (V) adsorption indicating that iron oxides in the soil are primarily responsible for MSMA (V) adsorption; 3) the presence of phosphate in aqueous solutions inhibited MSMA (V) adsorption as a result of competitive adsorption between phosphate and MSMA (V); and 4) MSMA (V) adsorption and apparent adsorption extent were strongly influenced by pH indicating that surface complexation on amphoteric sorption sites in the soil was responsible for MSMA (V) adsorption.eng
dc.format.extentviii, 35 pageseng
dc.identifier.urihttp://hdl.handle.net/10355/35421
dc.languageEnglisheng
dc.publisherUniversity of Missouri--Columbiaeng
dc.relation.ispartof2012 Freely available theses (MU)eng
dc.subjectMSMA adsorptioneng
dc.subjectiron oxideseng
dc.subjectcompetitive adsorptioneng
dc.titleIndividual and competitive adsorption of MSMA and phosphate onto iron and non-iron soileng
dc.typeThesiseng
thesis.degree.disciplineCivil engineering (MU)eng
thesis.degree.grantorUniversity of Missouri--Columbiaeng
thesis.degree.levelMasterseng
thesis.degree.nameM.S.eng


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