Colloidal fouling of membrane filters: Constant transmembrane pressure versus constant permeate flux

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dc.contributor.advisorWiesner, Mark R.en_US
dc.creatorHovinga, Rik Martynen_US
dc.date.accessioned2009-06-04T06:40:36Zen_US
dc.date.available2009-06-04T06:40:36Zen_US
dc.date.issued2000en_US
dc.description.abstractA previously developed model describing colloidal fouling of membrane filters (Sethi, 1997) predicts that operation under conditions of constant transmembrane pressure should result in less fouling than operation at constant permeate flux. These predictions were tested in a series of laboratory experiments. The influence of particle size and mode of operation on the specific permeate flux performance of a cross-flow flat slit membrane unit, was evaluated using an ultra-filtration membrane mounted in an existing Osmonics SEPA CF membrane module. Experiments of three hours in duration were conducted with polystyrene latex particles (100 nm, 430 nm, and 1000 nm) which resulted in a strong correlation between particle size and specific permeate flux. Consistent with theoretical prediction, less fouling was observed in a constant pressure mode of operation. However difference in between the two modes of operation with different particle sizes were not as great as anticipated. Indications for a strong influence of the flowing layer on the specific permeate flux performance were found for the 1000 nm particles. Future research for a better understanding of the role of the flowing layer and cake resistance in membrane fouling is needed and recommended.en_US
dc.format.extent115 p.en_US
dc.format.mimetypeapplication/pdfen_US
dc.identifier.callnoTHESIS ENV.SCI. 2000 HOVINGAen_US
dc.identifier.citationHovinga, Rik Martyn. "Colloidal fouling of membrane filters: Constant transmembrane pressure versus constant permeate flux." (2000) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/17345">https://hdl.handle.net/1911/17345</a>.en_US
dc.identifier.urihttps://hdl.handle.net/1911/17345en_US
dc.language.isoengen_US
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.en_US
dc.subjectEnvironmental scienceen_US
dc.subjectEnvironmental engineeringen_US
dc.titleColloidal fouling of membrane filters: Constant transmembrane pressure versus constant permeate fluxen_US
dc.typeThesisen_US
dc.type.materialTexten_US
thesis.degree.departmentEnvironmental Scienceen_US
thesis.degree.disciplineEngineeringen_US
thesis.degree.grantorRice Universityen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Scienceen_US
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