Abstract
Polyethersulfone/zinc oxide mixed matrix hollow fiber membrane was fabricated using dry/wet phase inversion method. Zinc oxide nanoparticles (2 wt.%) were dispersed in N,N-dimethylacetamide (DMAc) solvent in the present of polyvinylepyrrolidene. The dope solution speed and take up speed was similar with performing the spinning process at room temperature. The produced membranes were characterized using scanning electron microscope (SEM), atomic force microscope (AFM), and Fourier transform infrared (FTIR) analysis. Membrane performance was evaluated using pure water flux (PWF), relative flux ration (RFR), and total organic carbon (TOC) removal efficiency. From SEM analysis, it was found that the nanoparticles were well dispersed in the polymeric matrix. From AFM results, it was observed that the modified membrane has higher surface roughness. The PWF of the modified membrane was enhanced, while the RFR showed to increase due to rougher membrane surface. The NOM remaoval of PES/ZnO membrane was higher than that of PES membrane and reached to 27% compared to only 16.9 % for pristine PES.
Highlights
Among various pollutants present in river water is the natural organic matters (NOM) [1]
3.1 Membrane Characterization The scanning electron microscope (SEM) of cross sectional area and surface images of pristine and mixed matrix membranes are presented in Figure (1)
There was no significant difference in the thickness of skin layer of both membranes
Summary
Among various pollutants present in river water is the natural organic matters (NOM) [1]. The presence of NOM in the treated water could react with chlorine to form disinfection by –products (DBPs) such as trihalomethanes (THMs) habacetic acids (HAAS). These compounds are harmful to human body due to their carcinogenic effects. Application of membrane technology in production of drinking water found wide acceptance in the recent decade [3]. For their easy fabrications and higher efficiency, the polymeric membranes are currently the most widely used membranes type for water treatment compared to inorganic membranes equivalents [4]. Iraqi Journal of Industrial Research, Vol 8, No 2 (2021)
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