Potential Application of D-Amino Acids in Biofouling Control of Nanofiltration (NF) Membranes

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dc.contributor.advisorLi, Qilin
dc.creatorYu, Cong
dc.date.accessioned2013-03-08T00:40:18Z
dc.date.available2013-03-08T00:40:18Z
dc.date.issued2012
dc.description.abstractBiofouling is a major impediment for the application of reverse osmosis filtration and nanofiltration in water and wastewater treatment as well as seawater desalination. In this study, a novel biofouling control strategy of using D-amino acids to interfere with biofilm formation was evaluated. Impact of D-amino acids on the surface attachment and biofilm formation of Pseudomonas aeruginosa was investigated in batch and continuous flow filtration systems. All 19 D-amino acids demonstrated inhibitive effects on P. aeruginosa biofilm formation. In particular, D-tyrosine was found to strongly inhibit P. aeruginosa attachment and biofilm formation on an NF membrane. When continuously supplemented to the membrane feed water in a bench scale nanofiltration system, it prohibited irreversible biofouling of the NF membrane at concentrations as low as 3 μM. The effectiveness of biofilm control by these D-amino acids seems to strongly depend on the ratio of D-amino acid concentration to bacterial cell number.
dc.format.extent84 p.en_US
dc.format.mimetypeapplication/pdf
dc.identifier.callnoTHESIS C.E. 2012 YU
dc.identifier.citationYu, Cong. "Potential Application of D-Amino Acids in Biofouling Control of Nanofiltration (NF) Membranes." (2012) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/70509">https://hdl.handle.net/1911/70509</a>.
dc.identifier.digitalYuCen_US
dc.identifier.urihttps://hdl.handle.net/1911/70509
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.titlePotential Application of D-Amino Acids in Biofouling Control of Nanofiltration (NF) Membranes
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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