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DOI: https://doi.org/10.4491/eer.2018.249
Heavy metals removal from aqueous solution through micellar enhanced ultrafiltration: A review
Muhammad Yaqub, and Seung Hwan Lee
Department of Environmental Engineering, Kumoh National Institute of Technology, Gumi 39177, Republic of Korea
Corresponding Author: Seung Hwan Lee ,Tel: +82-54-478-7632, Fax: +82-54-478-7629, Email: dlee@kumoh.ac.kr
Received: July 24, 2018;  Accepted: November 23, 2018.
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ABSTRACT
Micellar-enhanced ultrafiltration (MEUF) is a surfactant-based separation technique and has been investigated for the removal of heavy metals from wastewater. The performance of heavy metals removal from wastewater through MEUF relies on membrane characteristics, surfactant properties, various operational parameters including operating pressure, surfactant and heavy metal concentration, pH of the solution, temperature, and presence of dissolved solutes and salts. This study presents an overview of literature related to MEUF with respect to the all significant parameters including membranes, surfactants, operating conditions and MEUF hybrid processes. Moreover, this study illustrates that MEUF is an adaptable technique in various applications. Nowadays water contamination caused by heavy metals has become a serious concern around the globe. MEUF is a significant separation technique in wastewater treatment that should be acknowledged, for the reason that removal of heavy metals contamination even at lower concentrations becomes achievable, which is evidently made known in the presented review. Hybrid processes presented the better results as compared to MEUF. Future studies are required to continue the experimental work with various combinations of surfactant and heavy metals, and to investigate for the treatment of concentrated solutions, as well as for real industrial wastewater.
Keywords: Activated carbon fiber | Heavy metals | Membrane | Micellar enhanced ultrafiltration | Surfactant
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