Enhance the Chlorine Resistance of Reverse Osmosis Membrane

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Kehtari Anvar, Mahmood | 2014

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 46031 (06)
University: Sharif University of Technology
Department: Chemical and Petroleum Engineering
Advisor(s): Mousavi, Abbas; Abdekhodaei, Mohammad Jafar
Abstract:
Reverse osmosis membrane one of the common methods used for water desalination, today membrane, thin film composite(TFC) include three layers, top the these layers named selection layer, this poly amid layer contacted with feed water, sensitivity to chlorine in polyamide layer lead to high membrane chlorine sensitive. Difference methods used for enhance the chlorine resistance in polyamide membrane that categorized in three general categories, covering and protection of sensitive areas method has best results in comparison to other methods. In this research protection method choose and used, material that used, sanitized by result from surface analysis of commercial membrane manufactured in Filmtech Company, modified membrane in very chlorine Destruction condition tested. Results show chlorine resistance increase saliently, more than three times resistant in comparison to virgin membrane. As well as Hydrophilic of modified membrane increased by this method
Keywords:
Reverse Osmosis ; Polyamides ; Chlorine ; Reverse Osmosis Membrane ; Membrane Modification

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