Development of anti-foulant ultraviolet-assisted polyvinyl alcohol layer on the polysulfone-based nanohybrid membrane for industrial rubber wastewater decontamination

Frontiers in Environmental Science

Environmental Science

Fadhilah Fatma Lingga¹  Andri Cahyo Kumoro¹  Febio Dalanta¹  Nita Aryanti¹  Ade Widiastuti¹  Tutuk Djoko Kusworo¹  Alexandre A. Vetcher² 

[1] Department of Chemical Engineering, Faculty of Engineering, Diponegoro University, Semarang, Indonesia;Peoples’ Friendship University of Russia (RUDN), Moscow, Russia;Complimentary and Integrative Health Clinic of Dr. Shishonin, Moscow, Russia;

关键词: nanohybrid membrane;    PVA coating;    UV irradiation;    antifouling properties;    fouling mechanism;    industrial rubber;    wastewater treatment;   

DOI  :  10.3389/fenvs.2023.1175957

 received in 2023-02-28, accepted in 2023-03-27,  发布年份 2023

来源: Frontiers

【 摘 要 】

Introduction: Membrane fouling has been reported to be one of the bottlenecks of membrane technologies for wastewater treatment. To mitigate its negative impacts, we fabricated polysulfone membrane (PSf) composites made of silica (SiO2) and graphene oxide (GO) nanoparticles that modified with ultraviolet (UV)-assisted polyvinyl alcohol layer on the membrane surface.Methods: The membrane composite was synthesized using non-solvent induced phase separation (NIPS) method. The membrane was further treated by UV irradiation and cross-linked with PVA coating to cope with the fouling problem. The modified membrane was applied for industrial rubber wastewater decontamination.Results: The UV irradiation and cross-linked PVA coating to the PSf/GO-SiO2 membrane improved the pseudo-steady state permeate flux by 60.15% from 20.05 to 50.32 L/m2hr and maintained the permeate flux up to 82.33%. About 85% of total dissolved solids (TDS), 81% of chemical oxygen demand (COD), and 84% of ammonia compound (NH3) with initial concentrations of 335.76, 242.55, 175.19 mg/L, respectively, could be removed after 8 h of membrane treatment. The modified membrane also exhibited an excellent flux recovery ratio of up to 83%.Discussion: The modified membrane changed the fouling mechanism from pore blockage to cake filtration, which signifies the capability of the membrane to tackle severe fouling tendency. The cross-linked UV/PVA coating reduced fouling formation by reducing the adsorptive interactions between the foulant molecules and the membrane surface by enhancing membrane surface hydrophilicity. This implies that incorporating GO/SiO2 nanoparticles with UV irradiation and PVA coating substantially enhanced the physicochemical properties of the PSf membrane.

【 授权许可】

Unknown   
Copyright © 2023 Kusworo, Kumoro, Aryanti, Lingga, Widiastuti, Vetcher and Dalanta.