Phosphonium-Enhanced Chitosan for Hexavalent Chromium Adsorption in Wastewater Treatment

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atmire.migration.oldid5867
dc.contributor.advisorHill, Josephine
dc.contributor.authorSessarego, Sebastian
dc.contributor.committeememberNassar, Nashaat
dc.contributor.committeememberLu, Qingye (Gemma)
dc.date.accessioned2017-08-17T20:13:49Z
dc.date.available2017-08-17T20:13:49Z
dc.date.issued2017
dc.date.submitted2017en
dc.description.abstractAdsorption is a commonly used technique for removing contaminants from wastewater, such as hexavalent chromium (Cr(VI)) from the wastewater of a chrome plating plant. Chitosan, a prevalent polymeric biomass that is used industrially as a wastewater treatment adsorbent, was crosslinked and functionalized with a low-cost phosphonium salt to enhance its adsorption capacity for Cr(VI). At Cr(VI) concentrations below 130 ppm, the phosphonium-crosslinked chitosan (PCC) adsorbed more than double the amount of Cr(VI) than the unmodified chitosan. The low-cost method for manufacturing PCC may provide a cost-effective alternative to simply increasing the amount of chitosan used in a process. Additionally, PCC was regenerated using magnesium sulfate for repeated use. The recovered Cr(VI) may be recycled back into a chrome plating process.en_US
dc.identifier.citationSessarego, S. (2017). Phosphonium-Enhanced Chitosan for Hexavalent Chromium Adsorption in Wastewater Treatment (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/27336en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/27336
dc.identifier.urihttp://hdl.handle.net/11023/4024
dc.language.isoeng
dc.publisher.facultyGraduate Studies
dc.publisher.institutionUniversity of Calgaryen
dc.publisher.placeCalgaryen
dc.rightsUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.
dc.subjectToxicology
dc.subjectChemistry
dc.subjectChemistry--Organic
dc.subjectChemistry--Polymer
dc.subjectEngineering--Chemical
dc.subjectEngineering--Environmental
dc.subjectEngineering--Industrial
dc.subjectMaterials Science
dc.subject.otherchromium
dc.subject.otherCr(VI)
dc.subject.otherchitosan
dc.subject.otherAdsorption
dc.subject.otherWater
dc.subject.otherWastewater
dc.subject.otherphosphorus
dc.subject.otherwater treatment
dc.titlePhosphonium-Enhanced Chitosan for Hexavalent Chromium Adsorption in Wastewater Treatment
dc.typemaster thesis
thesis.degree.disciplineChemical and Petroleum Engineering
thesis.degree.grantorUniversity of Calgary
thesis.degree.nameMaster of Science (MSc)
ucalgary.item.requestcopytrue
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