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RETENTION CAPACITY OF POLYSULFONE MEMBRANE IN WASTEWATER TREATMENT

Laurentia Geanina Tiron

First published: 2018-06-20https://doi.org/10.5593/sgem2018/6.1/s24.058View metrics

Abstract

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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Publication details

Title
RETENTION CAPACITY OF POLYSULFONE MEMBRANE IN WASTEWATER TREATMENT
Authors
Laurentia Geanina Tiron
Proceedings
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 18th International Multidisciplinary Scientific GeoConference SGEM2018, Nano, Bio and Green - Technologies for a Sustainable Future
Publisher
STEF92 Technology
Year
2018
Pages
433-440
SWS Citekey
TIRON201824433440
ISSN
1314-2704
ISBN
978-619-7408-50-8
Language
en
Publication type
Conference Paper
Proceedings contents
Open official contents
Keywords
polysulfoneretentiondyeroughnessultrafiltration
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