Pembuatan dan Karakterisasi Membran Polyethersulfone (PES)-Kitosan Secara Blending Polimer
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Separation technique with membrane technology has been implemented broadly for dirty water treatment. To result in better membrane performance, membrane modification is carried out with chitosan. Polyethersulfone (PES) membrane 18% ismodified with chitosan solution of 1, 3, 5, and 7% as additive, n-methyl pirrolidone as solvent, and distilled water as non-solvent. Themembrane synthesis is carried out with the method of non-solvent induced phased separation. The filtration test of membrane flux and rejection uses dead-end filtration module. The membrane characterization covers membrane morphology structure with Scanning Electron Microscopy, functional group analysis with Fourier Transform Infra-Red Spectrophotometry, and tensile strength with Universal Testing Machine Hung Ta. The research result shows that PES embrane modification with chitosan solution has permeability coefficient in the range of 10–50 L/m 2 ∙hr∙bar, so it is included in the ultrafiltration membrane category. PES membrane with chitosan addition 5% has permeability coefficient and rejection coefficient values of 37.0199 L/m 2 ∙jam∙bar and 73.84%, respectively.
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