Chitosan/Polyethersulfone Composite Nanofiltration Membrane for Industrial Wastewater Treatment
نویسندگان
1 Department of Chemical Engineering, College of Engineering, University of Tehran, Tehran, I. R. Iran
2 Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
3 Department of Biomedical Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, I. R. Iran
4 Department of Biomaterials, Iran Polymer and Petrochemical Institute, Tehran, I. R. Iran
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چکیده
Chitosan/polyethersulfone (CS/PES) composite membrane was prepared from casting chitosan solution on polyethersulfone substrate membrane. The Substrate membrane was prepared by phase inversion technique using polyethersulfone (PES) and dimethylacetamide (DMAc) as solvent with and without the addition of polyvinylpyrrolidone (PVP) as pore-forming agent. The effects of the composition of the casting solution on membrane morphology and water permeation were investigated. The membrane prepared from 15 wt % PES with 2.25 wt % PVP demonstrated better water permeability compared to other compositions. CS/PES composite membrane flux and retention were 5.2 lit/m2hr and 76.15%, respectively. The mean pore size of the composite membrane was calculated as 0.99 nm.
