Enhancing the performance of Fenton-like oxidation by a dual-layer membrane: A sequential interception-oxidation process

Yi Ren; Shu Wang; Jing Zhang; Junhe Lu; Chao Shan; Yanyang Zhang; Dionysios D Dionysiou; Lu Lv; Bingcai Pan; Weiming Zhang

doi:10.1016/j.jhazmat.2020.123766

Enhancing the performance of Fenton-like oxidation by a dual-layer membrane: A sequential interception-oxidation process

J Hazard Mater. 2021 Jan 15:402:123766. doi: 10.1016/j.jhazmat.2020.123766. Epub 2020 Aug 26.

Authors

Yi Ren¹, Shu Wang¹, Jing Zhang¹, Junhe Lu², Chao Shan³, Yanyang Zhang³, Dionysios D Dionysiou⁴, Lu Lv³, Bingcai Pan³, Weiming Zhang⁵

Affiliations

¹ State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China.
² Department of Environmental Science and Engineering, Nanjing Agricultural University, Nanjing, 210095, China.
³ State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China; Research Center for Environmental Nanotechnology (ReCENT), Nanjing University, Nanjing, 210023, China.
⁴ Environmental Engineering and Science Program, Department of Chemical and Environmental Engineering, University of Cincinnati, Cincinnati, OH, 45221-0012, United States.
⁵ State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China; Research Center for Environmental Nanotechnology (ReCENT), Nanjing University, Nanjing, 210023, China. Electronic address: wmzhang@nju.edu.cn.

PMID: 33254778
DOI: 10.1016/j.jhazmat.2020.123766

Abstract

Fenton-like oxidation for multicomponent wastewater treatment suffers from a low efficiency due to non-selective nature of produced reactive species. In this study, a multifunctional dual-layer ultrafiltration membrane (Seq-ICM) was synthesized for multiple pollutants decontamination. Characterizations of the membranes indicate that Seq-ICM comprises a skin layer for ultrafiltration, and a porous support layer loaded with ∼50% MIL-53(Fe) for catalysis. With bovine serum albumin coexisting, Seq-ICM can remove 75.7% bisphenol S (BPS), which is much higher than that of a simultaneous interception-catalysis membrane (44.2 %). For multicomponent wastewater treatment, Seq-ICM system can save ∼59%-67% oxidant dosage as well compared with catalysis alone membrane system to achieve 50% BPS removal. Furthermore, the decontamination mechanisms were investigated to explain the advantages of Seq-ICM. Sequential interception and oxidation process by Seq-ICM leads to the interception of macromolecular substances first, following by catalytic oxidation of low-molecular-weight organics. This process prevents macromolecular substances from competing for active species with low-molecular-weight organics, thereby enhancing selectivity and oxidation efficiency. Meanwhile, Seq-ICM shows satisfactory BPS removal efficiency for treatment of 2865 L/m² synthetic solution, as well as in real wastewater matrix. We believe the proposed technology based on a composite membrane is promising for the removal of multicomponent substances from wastewater.

Keywords: Bisphenol S; Dual-layer membrane; Fenton-like oxidation; Multicomponent wastewater; Selective removal; Sequential interception- oxidation.

Publication types

Research Support, Non-U.S. Gov't