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RETENTION CAPACITY OF POLYSULFONE MEMBRANE IN WASTEWATER TREATMENT
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L. G. TIRON;E. DANAILA;G. Genoveva ISTRATE;S. BALTA;M. VLAD
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1314-2704
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English
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18
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6.1
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The polymers performance in membrane technology provide a stable and very high
level of pollutant removal. The selection capacity and low cost of the polymeric membrane technology are important factors in wastewater treatment applications. Four membranes from polysulfone with different concentration blend in N-Methyl-2- pyrrolidone were obtained by phase inversion method in our laboratory. The membrane performances were characterized by flux rejection, relative flux, retention capacity and morphology. The surface and cross-section morphology of the samples was observed by using scanning electron microscope, in order to correlate the membrane structures with permeation tests. The asymmetric structure consists in two distinct layers, sponge-like and finger-like formations with variable dense top layer. It has been observed that surface porosity influences the retention capacity. Also, the anti-fouling ability was examined for two dyes with different molecular weight: Congo red dye and Methylene blue dye. Based on the results obtained, it is reported that the membranes with the high polymer concentration shows the highest retention, a well-defined top dens layer, lowest fouling and higher molecular cut-off. |
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conference
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18th International Multidisciplinary Scientific GeoConference SGEM 2018
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18th International Multidisciplinary Scientific GeoConference SGEM 2018, 02-08 July, 2018
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Proceedings Paper
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STEF92 Technology
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International Multidisciplinary Scientific GeoConference-SGEM
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Bulgarian Acad Sci; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Slovak Acad Sci; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; World Acad Sci; European Acad Sci, Arts & Letters; Ac
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433-440
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02-08 July, 2018
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website
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cdrom
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1824
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polysulfone; retention; dye; roughness; ultrafiltration
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