Reuse of Waste Water to Make Drinking Water by using RO Membranes Technology: Technical Feasibility and European Regulation

Chaumien, E.; Boda, Roman; Boutarin, L.

doi:10.1016/j.proeng.2012.08.924

Cited by 1 publication

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“…The natural rubber-laden wastewater from the industry generated extraordinarily high volume and high emerging pollutant content; hence, it needs a reliable, cost-effective, simple, and durable treatment method. The applications of membrane technology on numerous types of water and wastewater treatment have been unquestionably proven with outstanding results (Chaumien et al, 2012;Bell et al, 2017;Zhan et al, 2019;Jain et al, 2020;Kusworo et al, 2021a). To present the novelty, this current study focuses on the integrated UV light irradiation and PVA coating on the nanohybrid PSf/GO-SiO 2 membrane for efficient natural rubber-laden wastewater treatment, which has not yet been studied.…”

Section: Introductionmentioning

confidence: 99%

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

Kusworo

Kumoro

Aryanti

et al. 2023

Front. Environ. Sci.

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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.

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