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dc.contributor.authorHair, David Hayneen
dc.date.accessioned2014-03-14T21:50:00Zen
dc.date.available2014-03-14T21:50:00Zen
dc.date.issued1987-08-14en
dc.identifier.otheretd-11172012-040348en
dc.identifier.urihttp://hdl.handle.net/10919/45821en
dc.description.abstractThis project determined the thermodynamic potentials for various reactions between reduced manganese (Mn²), manganese oxide (MnO₂(s)), chlorine dioxide (Cl0₂), and potassium permanganate (KMnO₄). Based on these findings, laboratory analyses were performed to determine if these reactions would occur under simulated water treatment plant conditions. In addition, a speciation procedure was developed to quantify the various species of manganese and chlorine dioxide present in a single sample. The reactions and the speciation procedure were evaluated at TOC concentrations ranging from < 1.0 mg/L to 5.0 mg/L and at pH 6.0 and 8.0. The speciation procedure yielded a reliable measure of Mn², insoluble manganese, and Mn⁺⁷; however, the Mn⁺⁷ evaluation could be disrupted by the presence of free chlorine. The determination of Cl0₂ and Cl0₂- concentrations was also possible; however, the C10₂- concentration was subject to error. The laboratory analyses revealed that Cl0₂ was unable to oxidize either Mn² or MnO₂(s) to Mn⁺⁷ under any of the thermodynamically favored conditions. Both KMn0₄ and Cl0₂ selectively oxidized reduced organic material before reducing the concentration of Mn². When C10₂ and KMnO₄ were added simultaneously, the ClO2 reacted preferentially with the reduced materials. Only after the Cl0₂ concentration was exhausted did the MnO₂⁻ begin to oxidize the reduced species.en
dc.format.extentix, 111 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.publisherVirginia Techen
dc.relation.isformatofOCLC# 17374859en
dc.relation.haspartLD5655.V855_1987.H337.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1987.H337en
dc.subject.lcshChlorine oxidesen
dc.subject.lcshPotassium permanganateen
dc.subject.lcshWater -- Purification -- Manganese removalen
dc.titleAn investigation of the oxidative potential of potassium permanganate and chlorine dioxide during the oxidation of reduced manganeseen
dc.typeThesisen
dc.contributor.departmentEnvironmental Engineeringen
dc.description.degreeMaster of Scienceen
thesis.degree.nameMaster of Scienceen
thesis.degree.levelmastersen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.disciplineEnvironmental Planningen
dc.contributor.committeechairKnocke, William R.en
dc.contributor.committeememberHoehn, Robert C.en
dc.contributor.committeememberNovak, John T.en
dc.type.dcmitypeTexten
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-11172012-040348/en
dc.date.sdate2012-11-17en
dc.date.rdate2012-11-17en
dc.date.adate2012-11-17en


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