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Treatment of Phenolic Wastewater By Electric Field Enhanced Coal-based Carbon Membrane: Deactivation and Regeneration Performance of The Carbon Membrane

Authors： XIN Hong, PAN Zonglin, XU Shuang, YAN Xiaoqing, FAN Xinfei，SONG Chengwen, WANG Tonghua

Units： 1. College of Environmental Sciences and Engineering, Dalian Maritime University, Dalian 116026; 2. Group of Carbon Membrane and Porous Carbon Materials, State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024

KeyWords： Coal-based carbon membrane; electric field enhanced membrane separation; phenolic wastewater; deactivation mechanism; regeneration method

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2021,41(6):138-145

Abstract：

The electric field enhanced coal-based carbon membrane (CM), which simultaneously couples electrochemical oxidation and membrane separation, shows the great application prospects for organic wastewater treatment. However, the catalytic activity of CM will decrease during the long-tern operation, thus resulting in the reduction in water treatment performance. In this work, the deactivation process and regeneration method of electric field-enhanced CM during phenolic wastewater treatment was investigated based on the simulated phenolic wastewater. The micromorphology and electrochemical performance of the CM and deactivated CM (CM-D) were studied by scanning electron microscopy (SEM) and electrochemical workstation, respectively. The deactivation mechanism of CM was discussed and the regeneration performance of CM-D by different treatment methods were investigated. Results show that the phenol removal efficiency of CM is significantly improved under the applied voltage of 2.0 V. The deactivation of CM will be accelerated during the treatment of high-concentration wastewater. The main reason for the deactivation of CM was the electropolymerization of phenol molecules to form a polymer deposited on the surface of the CM particles, which covered the electrochemically active sites. It is difficult to achieve the complete regeneration of CM-D by solvent cleaning and electrochemical oxidation treatment. The pyrolysis treatment possesses better regeneration performance, the water treatment performance of CM-D after regeneration increases with the increase of pyrolysis temperature. The performance of CM-D is almost completely restored when the temperature reaches to 600 ℃, indicating the good regeneration performance on CM-D under this condition.

Funds：

辽宁省高等学校创新人才支持计划，中央高校基本科研业务费3132021155

AuthorIntro：

辛红（1996-），女，辽宁大连人，硕士研究生，从事电催化炭膜水处理研究.

Reference：

[1] Zhang R, Liu Y, He M, et al. Antifouling membranes for sustainable water purification: strategies and mechanisms[J]. Chemical Society Reviews, 2016:10-1039.
[2] Lee A, Elam J W, Darling S B. Membrane materials for water purification: design, development, and application[J]. Environmental Science Water Research & Technology, 2016,2(1):17-42.
[3] Miller D, Dreyer D, Bielawski C, et al. Surface Modification of Water Purification Membranes[J]. Angewandte Chemie International Edition in English, 2016,129(17):4662.
[4] Jhaveri J H, Murthy Z. A comprehensive review on anti-fouling nanocomposite membranes for pressure driven membrane separation processes[J]. Desalination, 2016,379:137-154.
[5]Moreira F. C., Boaventura R. A. R., Brillas E., et al. Electrochemical advanced oxidation processes: A review on their application to synthetic and real wastewaters[J]. Applied Catalysis B: Environmental, 2017, 202:217-261.
[6] Fan X, Zhao H, Quan X, et al. Nanocarbon-based membrane filtration integrated with electric field driving for effective membrane fouling mitigation[J]. Water Research, 2016,88:285-292.
[7] Rx A , Liu H A, Lin L A , et al. Ultraselective carbon molecular sieve membrane for hydrogen purification[J]. Journal of Energy Chemistry, 2020, 50:16-24.
[8] Pan Z, Yu F, Li L, et al. Low-cost electrochemical filtration carbon membrane prepared from coal via self-bonding[J]. Chemical Engineering Journal, 2020,385:123928.
[9] 潘宗林, 杨佳伟, 李琳,等. 造孔剂对煤基管状炭膜的结构和性能影响[J]. 膜科学与技术, 2019(5).
[10] 姜士敏, 宋成文, 李琳, 等. 成型工艺对煤基板式微滤炭膜的性能影响 [J]. 膜科学与技术, 2015, 35(2): 20-24.
[11] Pan Z , Yu F , Li L , et al. Electrochemical microfiltration treatment of bisphenol A wastewater using coal-based carbon membrane[J]. Separation and Purification Technology, 2019, 227:115695.
[12] Sun M, Feng G, Zhang M, et al. Enhanced removal ability of phenol from aqueous solution using coal-based carbon membrane coupled with electrochemical oxidation process[J]. Colloids & Surfaces A Physicochemical & Engineering Aspects, 2018,540:186-193.
[13] Gao G, Vecitis C D. Electrochemical carbon nanotube filter oxidative performance as a function of surface chemistry.[J]. Environmental Science & Technology, 2011,45(22):9726-9734.
[14] Gao G, Vecitis C D. Electrocatalysis aqueous phenol with carbon nanotubes networks as anodes: Electrodes passivation and regeneration and prevention[J]. Electrochimica Acta, 2013,98:131-138.
[15] Gao G, Vecitis C D. Doped carbon nanotube networks for electrochemical filtration of aqueous phenol: electrolyte precipitation and phenol polymerization.[J]. ACS Applied Materials & Interfaces, 2012,4(3):1478-1489.
[16] Duan W, Ronen A, Walker S, et al. Polyaniline-Coated Carbon Nanotube Ultrafiltration Membranes: Enhanced Anodic Stability for In Situ Cleaning and Electro-Oxidation Processes[J]. ACS Applied Materials & Interfaces, 2016, 8(34):22574.

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