Studying the Impact of RO Membrane Surface Functionalities on Alginate Fouling in Seawater Desalination

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dc.contributor.advisorLi, Qilin
dc.creatorWu, Jinjian
dc.date.accessioned2013-03-08T00:40:04Z
dc.date.available2013-03-08T00:40:04Z
dc.date.issued2012
dc.descriptionpage 42 is missing from hardcopyen_US
dc.description.abstractThe objective of this research was to elucidate how specific membrane surface functionalities affect fouling by alginate in seawater desalination. Alginate adsorption on self-assembled mono-layers with -COOH, -NH 2 , -CONH 2 groups under different solution conditions was studied using quartz crystal microbalance with dissipation monitoring. Cross-flow filtration experiments were performed using four commercial RO membranes to study the correlation of alginate fouling to membrane surface properties. Experimental results revealed the importance of solution condition, but surface functionality did not have significant impact on alginate adsorption equilibrium. The initial adsorption/deposition rate on the -COOH surface was the highest., while adsorption on the -NH 2 surface was most difficult to remove by surfactant cleaning. Filtration experiments showed that alginate fouling was more closely related to surface roughness than surface chemistry. The results suggest that surface chemistry is not an important factor for short term membrane fouling in seawater RO processes.
dc.format.extent81 p.en_US
dc.format.mimetypeapplication/pdf
dc.identifier.callnoTHESIS C.E. 2012 WU
dc.identifier.citationWu, Jinjian. "Studying the Impact of RO Membrane Surface Functionalities on Alginate Fouling in Seawater Desalination." (2012) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/70496">https://hdl.handle.net/1911/70496</a>.
dc.identifier.digitalWuJen_US
dc.identifier.urihttps://hdl.handle.net/1911/70496
dc.language.isoeng
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.
dc.subjectApplied sciences
dc.subjectEnvironmental engineering
dc.titleStudying the Impact of RO Membrane Surface Functionalities on Alginate Fouling in Seawater Desalination
dc.typeThesis
dc.type.materialText
thesis.degree.departmentChemical and Biomolecular Engineering
thesis.degree.disciplineEngineering
thesis.degree.grantorRice University
thesis.degree.levelMasters
thesis.degree.nameMaster of Science
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