Enhanced coalescence separation of oil-in-water emulsions using electrospun PVDF nanofibers

doi:10.1016/j.cjche.2020.08.037

中国化学工程学报 ›› 2021, Vol. 38 ›› Issue (10): 76-83.DOI: 10.1016/j.cjche.2020.08.037

• Separation Science and Engineering • 上一篇下一篇

Enhanced coalescence separation of oil-in-water emulsions using electrospun PVDF nanofibers

Yujie Yang^1,2,3, Lei Li^1,3, Qian Zhang^1,3, Wenwen Chen², Song Lin⁴, Zaiqian Wang⁴, Wangliang Li^1,3

1. CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;
2. Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, The School of Chemical and Material Science, Shanxi Normal University, Linfen 041004, China;
3. Innovation Academy for Green Manufacture, Chinese Academy of Sciences, Beijing 100190, China;
4. Guizhou Water Fuquan Co., Ltd, Guiyang 550081, China

收稿日期:2020-06-23 修回日期:2020-08-16 出版日期:2021-10-28 发布日期:2021-12-02
通讯作者: Wenwen Chen, Wangliang Li
基金资助:
This work was supported by the National Key Research and Development Program of China (No. 2017YFB0308000), the National Natural Science Foundation of China (No. 21706259), the State Key Laboratory of Heavy Oil Processing (SKLOP201903001), Guizhou Science Technology Support Program ([2019] 2839) and the Natural Science Youth Foundation of Shanxi Province (No. 201701D221033) and Program of Innovation Academy for Green Manufacture, CAS (IAGM2020C04).

Enhanced coalescence separation of oil-in-water emulsions using electrospun PVDF nanofibers

Yujie Yang^1,2,3, Lei Li^1,3, Qian Zhang^1,3, Wenwen Chen², Song Lin⁴, Zaiqian Wang⁴, Wangliang Li^1,3

1. CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;
2. Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, The School of Chemical and Material Science, Shanxi Normal University, Linfen 041004, China;
3. Innovation Academy for Green Manufacture, Chinese Academy of Sciences, Beijing 100190, China;
4. Guizhou Water Fuquan Co., Ltd, Guiyang 550081, China

Received:2020-06-23 Revised:2020-08-16 Online:2021-10-28 Published:2021-12-02
Contact: Wenwen Chen, Wangliang Li
Supported by:
This work was supported by the National Key Research and Development Program of China (No. 2017YFB0308000), the National Natural Science Foundation of China (No. 21706259), the State Key Laboratory of Heavy Oil Processing (SKLOP201903001), Guizhou Science Technology Support Program ([2019] 2839) and the Natural Science Youth Foundation of Shanxi Province (No. 201701D221033) and Program of Innovation Academy for Green Manufacture, CAS (IAGM2020C04).

摘要/Abstract

摘要： A novel and high-efficiency coalescence membrane enhanced by nano-sized polyvinylidene fluoride (PVDF) nanofibers based on polyester (PET) substrate was fabricated using electrospinning method. The properties of the electrospun nanofibers such as roughness and surface morphology greatly affected the oil droplet interception efficiency and surface wettability of the membrane. A series of coalescence units were prepared with different layers of nanofibrous membrane and the separation efficiencies at different initial concentrations, flow rates, and oil types were tested. It is very interesting that the obtained nanofibrous membrane exhibited superoleophilicity in air but poor oleophilicity under water, which was beneficial to the coalescence process. The coalescence unit with four membrane layers had excellent performances under different initial concentrations and flow rates. The separation efficiency of the 4-layers unit remained above 98.2% when the initial concentration reached up to 2000 mg·L^-1. Furthermore, the unit also exhibited good performance with the increasing oil density and viscosity, which is promising for large-scale oil wastewater treatment.

关键词: Coalescence, Electrospinning, Nanofibrous membrane, Oil-in-water emulsions

Abstract: A novel and high-efficiency coalescence membrane enhanced by nano-sized polyvinylidene fluoride (PVDF) nanofibers based on polyester (PET) substrate was fabricated using electrospinning method. The properties of the electrospun nanofibers such as roughness and surface morphology greatly affected the oil droplet interception efficiency and surface wettability of the membrane. A series of coalescence units were prepared with different layers of nanofibrous membrane and the separation efficiencies at different initial concentrations, flow rates, and oil types were tested. It is very interesting that the obtained nanofibrous membrane exhibited superoleophilicity in air but poor oleophilicity under water, which was beneficial to the coalescence process. The coalescence unit with four membrane layers had excellent performances under different initial concentrations and flow rates. The separation efficiency of the 4-layers unit remained above 98.2% when the initial concentration reached up to 2000 mg·L^-1. Furthermore, the unit also exhibited good performance with the increasing oil density and viscosity, which is promising for large-scale oil wastewater treatment.

Key words: Coalescence, Electrospinning, Nanofibrous membrane, Oil-in-water emulsions

Yujie Yang, Lei Li, Qian Zhang, Wenwen Chen, Song Lin, Zaiqian Wang, Wangliang Li. Enhanced coalescence separation of oil-in-water emulsions using electrospun PVDF nanofibers[J]. 中国化学工程学报, 2021, 38(10): 76-83.

参考文献

[1] T. Lü, C. Luo, D. Qi, D. Zhang, H. Zhao, Efficient treatment of emulsified oily wastewater by using amphipathic chitosan-based flocculant, React. Funct. Polym. 139 (2019) 133-141
[2] N.H. Ismail, W.N.W. Salleh, A.F. Ismail, H. Hasbullah, N. Yusof, F. Aziz, J. Jaafar, Hydrophilic polymer-based membrane for oily wastewater treatment: A review, Sep. Purif. Technol. 233 (2020) 116007
[3] X. Yue, Z. Li, T. Zhang, D. Yang, F. Qiu, Design and fabrication of superwetting fiber-based membranes for oil/water separation applications, Chem. Eng. J. 364 (2019) 292-309
[4] R. Etchepare, H. Oliveira, A. Azevedo, J. Rubio, Separation of emulsified crude oil in saline water by dissolved air flotation with micro and nanobubbles, Sep. Purif. Technol. 186 (2017) 326-332
[5] M. Sheikhi, M. Arzani, H.R. Mahdavi, T. Mohammadi, Kaolinitic clay-based ceramic microfiltration membrane for oily wastewater treatment: Assessment of coagulant addition, Ceram. Int. 45 (2019) 17826-17836
[6] C.Y. Teh, P.M. Budiman, K.P.Y. Shak, T.Y. Wu, Recent advancement of coagulation-flocculation and its application in wastewater treatment, Ind. Eng. Chem. Res. 55 (2016) 4363-4389
[7] Z. Fallah, E.P.L. Roberts, Combined adsorption/regeneration process for the removal of trace emulsified hydrocarbon contaminants, Chemosphere 230 (2019) 596-605
[8] H. Zhang, R. Zhao, M. Pan, J. Deng, Y. Wu, Biobased, porous poly(high internal phase emulsions): prepared from biomass-derived vanillin and laurinol and applied as an oil adsorbent, Ind. Eng. Chem. Res. 58 (2019) 5533-5542
[9] H.J. Tanudjaja, C.A. Hejase, V.V. Tarabara, A.G. Fane, J.W. Chew, Membrane-based separation for oily wastewater: A practical perspective, Water. Res. 156 (2019) 347-365
[10] H. Addi, F. Mateo-Ramírez, M.J. Salar-García, V.M. Ortiz-Martínez, F.J. Hernández-Fernández, A.P. de los Ríos, C. Godínez, E.M. Lotfi, M.E. Mahi, L.J. Lozano-Blanco, Ammonium-based Ppymer ionic liquid membrane for wastewater treatment and bioenergy production, Chem. Eng. Technol. 41 (2018) 379-384
[11] Q. Zhang, L. Li, Y. Li, L. Cao, C. Yang, Surface wetting-driven separation of surfactant-stabilized water-oil emulsions, Langmuir 34 (2018) 5505-5516
[12] J.A. Khan, H.H. Al-Kayiem, W. Aleem, A.B. Saad, Influence of alkali-surfactant-polymer flooding on the coalescence and sedimentation of oil/water emulsion in gravity separation, J. Pet. Sci. Eng. 173 (2019) 640-649
[13] H. Lu, Y.Q. Liu, J.B. Cai, X. Xu, L.S. Xie, Q. Yang, Y.X. Li, K. Zhu, Treatment of offshore oily produced water: Research and application of a novel fibrous coalescence technique, J. Pet. Sci. Eng. 178 (2019) 602-608
[14] Y.B. Zhou, L. Chen, X.M. Hu, J. Lu, Modified resin coalescer for oil-in-water emulsion treatment: effect of operating conditions on oil removal performance, Ind. Eng. Chem. Res. 48 (2009) 1660-1664
[15] R.N. Hazlett, Fibrous bed coalescence of water. Steps in the coalescence process, Ind. Eng. Chem. Fund. 8 (1969) 625-632
[16] D. Hu, Q. Zhang, C. Yang, X. Wang, Process diagnosis of coalescence separation of oil-in-water emulsions-two case studies, J. Dispersion Sci. Technol
[17] H. Luo, X. Yang, Z. Lu, Z. Bai, H. Wang, L. Shou, Effect of drainage layer on oil distribution and separation performance of fiber-bed coalescer, Sep. Purif. Technol. 218 (2019) 173-180
[18] D. Hu, X. Li, L. Li, C. Yang, Designing high-caliber nonwoven filter mats for coalescence filtration of oil/water emulsions, Sep. Purif. Technol. 149 (2015) 65-73
[19] A. Krasinski, P. Wierzba, Removal of emulsified water from diesel fuel using polypropylene fibrous media modified by ionization during meltblow process, Sep. Sci. Technol. 50 (2015) 1541-1547
[20] Y. Mino, A. Hasegawa, H. Shinto, H. Matsuyama, Lattice-Boltzmann flow simulation of an oil-in-water emulsion through a coalescing filter: Effects of filter structure, Chem. Eng. Sci. 177 (2018) 210-217
[21] F. Chen, Z. Ji, Q. Qi, Effect of pore size and layers on filtration performance of coalescing filters with different wettabilities, Sep. Purif. Technol. 201 (2018) 71-78
[22] A.D. Gadhave, S.N. Mehdizadeh, G.G. Chase, Effect of pore size and wettability of multilayered coalescing filters on water-in-ULSD coalescence, Sep. Purif. Technol. 221 (2019) 236-248
[23] Z. Lu, Z. Bai, H. Luo, Z. Hu, F. Pang, Effect and optimization of bed properties on water-in-oil emulsion separation, J. Dispersion Sci. Technol. 40 (2019) 415-424
[24] P.S. Kulkarni, S.U. Patel, G.G. Chase, Coalescence filtration performance of blended microglass and electrospun polypropylene fiber filter media, Sep. Purif. Technol. 124 (2014) 1-8
[25] P.S. Kulkarini, S.U. Patel, G.G. Chase, Layered hydrophilic/hydrophobic fiber media for water-in-oil coalescence, Sep. Purif. Technol. 85 (2012) 157-164
[26] W.J. Ma, Y.S. Li, M.J. Zhang, S.T. Gao, J.X. Cui, C.B. Huang, G.D. Fu, Biomimetic durable multifunctional self-cleaning nanofibrous membrane with outstanding oil/water separation, photodegradation of organic contaminants, and antibacterial performances, ACS Appl. Mater. Interfaces 12 (2020) 34999-35010
[27] Y. Liao, C.H. Loh, M. Tian, R. Wang, A.G. Fane, Progress in electrospun polymeric nanofibrous membranes for water treatment: Fabrication, modification and applications, Prog. Polym. Sci. 77 (2018) 69-94
[28] J. Xue, T. Wu, Y. Dai, Y. Xia, Electrospinning and electrospun nanofibers: methods, materials, and applications, Chem. Rev. 119 (2019) 5298-5415
[29] X. Feng, J. Li, X. Zhang, T. Liu, J. Ding, X. Chen, Electrospun polymer micro/nanofibers as pharmaceutical repositories for healthcare, J. Controll. Release. 302 (2019) 19-41
[30] L. Hou, N. Wang, J. Wu, Z. Cui, L. Jiang, Y. Zhao, Bioinspired superwettability electrospun micro/nanofibers and their applications, Adv. Funct. Mater. 28 (2018) 1801114
[31] T. Xu, Y. Ding, Z. Liang, H. Sun, F. Zheng, Z. Zhu, Y. Zhao, H. Fong, Three-dimensional monolithic porous structures assembled from fragmented electrospun nanofiber mats/membranes: Methods, properties, and applications, Prog. Mater. Sci. 112 (2020) 100656
[32] J.X. Cui, F.H. Li, Y.L. Wang, Q.L. Zhang, W.J. Ma, C.B. Huang, Electrospun nanofiber membranes for wastewater treatment applications, Sep. Purif. Technol. 250 (2020) 117116
[33] H.P. Karki, L. Kafle, D.P. Ojha, J.H. Song, H.J. Kim, Cellulose/polyacrylonitrile electrospun composite fiber for effective separation of the surfactant-free oil-in-water mixture under a versatile condition, Sep. Purif. Technol. 210 (2019) 913-919
[34] J.L. Ge, D.D. Zong, Q. Jin, J.Y. Yu, B. Ding, Biomimetic and superwettable nanofibrous skins for highly efficient separation of oil-in-water emulsions, Adv. Funct. Mater. 28 (2018) 1705051
[35] Y.Z. Lin, L.B. Zhong, S. Dou, Z.D. Shao, Q. Liu, Y.M. Zheng, Facile synthesis of electrospun carbon nanofiber/graphene oxide composite aerogels for high efficiency oils absorption, Environ. Int. 128 (2019) 37-45
[36] W. Ma, J. Zhao, O. Oderinde, J. Han, Z. Liu, B. Gao, R. Xiong, Q.S. Zhang, C.J. Huang, Durable superhydrophobic and superoleophilic electrospun nanofibrous membrane for oil-water emulsion separation, J. Colloid. Interface. Sci. 532 (2018) 12-23
[37] Y. Liang, S. Kim, P. Kallem, H. Choi, Capillary effect in Janus electrospun nanofiber membrane for oil/water emulsion separation, Chemosphere 221 (2019) 479-485
[38] Y.X. Wang, Y.J. Li, H. Yang, Z.L. Xu, Super-wetting, photoactive TiO₂ coating on amino-silane modified PAN nanofiber membranes for high efficient oil-water emulsion separation application, J. Membr. Sci. 580 (2019) 40-48
[39] J.W. Guo, C.F. Wang, S.H. Chen, J.Y. Lai, C.H. Lu, J.K. Chen, Highly efficient self-cleaning of heavy polyelectrolyte coated electrospun polyacrylonitrile nanofibrous membrane for separation of oil/water emulsions with intermittent pressure, Sep. Purif. Technol. 234 (2020) 116106
[40] M.J. Zhang, W.J. Ma, S.T. Wu, G.S. Tang, J.X. Cui, Q.L. Zhang, F. Chen, R.H. Xiong, C.B. Huang, Hydrothermal synthesized UV-resistance and transparent coating composited superoloephilic electrospun membrane for high efficiency oily wastewater treatment, J. Hazard. Mater. 383 (2020) 121152
[41] S. Agarwal, V.V. Arnim, T. Stegmaier, H. Planck, A. Agarwal, Effect of fibrous coalescer geometry and operating conditions on emulsion separation, Ind. Eng. Chem. Res. 52 (2012) 13164-13170
[42] I. Sadeghi, N. Govinna, P. Cebe, A. Asatekin, Superoleophilic, mechanically strong electrospun membranes for fast and efficient gravity-driven oil/water separation, ACS Appl. Polym. Mater. 1 (2019) 765-776
[43] J.D. Wu, Y.J. Ding, J.Q. Wang, T.T. Li, H.B. Lin, J.P. Wang, F. Liu, Facile fabrication of nanofiber- and micro/nanosphere-coordinated PVDF membrane with ultrahigh permeability of viscous water-in-oil emulsions, J. Mater. Chem. A 6 (2018) 7014-7020
[44] W. Zhang, Z. Shi, F. Zhang, X. Liu, J. Jin, L. Jiang, Superhydrophobic and superoleophilic PVDF membranes for effective separation of water-in-oil emulsions with high flux, Adv. Mater. 25 (2013) 2071-2076
[45] S.H. Tan, R. Inai, M. Kotaki, S. Ramakrishna, Systematic parameter study for ultra-fine fiber fabrication via electrospinning process, Polymer 46 (2015) 6128-6134
[46] M.M. Munir, A.B. Suryamas, F. Iskandar, K. Okuyama, Scaling law on particle-to-fiber formation during electrospinning, Polymer 50 (2009) 4935-4943
[47] J.Y. Lin, B. Ding, J.Y. Yu, Direct fabrication of highly nanoporous polystyrene fibers via electrospinning, ACS Appl. Mater. Interfaces 2 (2010) 521-528
[48] M.J. Zhang, W.J. Ma, S.T. Wu, G.S. Tang, J.X. Cui, Q.L. Zhang, F. Chen, R.H. Xiong, C.B. Huang, Electrospun frogspawn structured membrane for gravity-driven oil-water separation, J. Colloid. Interface. Sci. 547 (2019) 136-144

Enhanced coalescence separation of oil-in-water emulsions using electrospun PVDF nanofibers

Enhanced coalescence separation of oil-in-water emulsions using electrospun PVDF nanofibers

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[6]	Jiming Wen, Qiunan Sun, Zhongning Sun, Haifeng Gu. Bubble coalescence efficiency near multi-orifice plate[J]. 中国化学工程学报, 2019, 27(8): 1765-1776.
[7]	Jiyizhe Zhang, Yundong Wang, Geoffrey W. Stevens, Weiyang Fei. A state-of-the-art review on single drop study in liquid-liquid extraction: Experiments and simulations[J]. 中国化学工程学报, 2019, 27(12): 2857-2875.
[8]	Seyed Jalil Poormohammadian, Parviz Darvishi, Abdol Mohammad Ghalambor Dezfuli. Investigating the structural effect of electrospun nano-fibrous polymeric films on water vapor transmission[J]. Chinese Journal of Chemical Engineering, 2019, 27(1): 100-109.
[9]	Nikolaos A. Avgerinos, Dionissios P. Margaris. A three-dimensional CFD study of the hydrodynamic behavior of equal and unequal-sized in-line methane bubbles at high pressure[J]. Chinese Journal of Chemical Engineering, 2018, 26(9): 1792-1802.
[10]	Bo Zhang, Lingtong Kong, Haibo Jin, Guangxiang He, Suohe Yang, Xiaoyan Guo. CFD simulation of gas-liquid flow in a high-pressure bubble column with a modified population balance model[J]. Chinese Journal of Chemical Engineering, 2018, 26(6): 1350-1358.
[11]	Jing Xue, Feiguo Chen, Ning Yang, Wei Ge. Eulerian-Lagrangian simulation of bubble coalescence in bubbly flow using the spring-dashpot model[J]. , 2017, 25(3): 249-256.
[12]	Morteza Hosseini. Coalescence behaviour of water droplets in water-oil interface under pulsatile electric fields[J]. , 2016, 24(9): 1147-1153.
[13]	Jun Zhang. Movement of dispersed droplets ofW/O emulsion in a uniform DC electrostatic field: Simulation on droplet coalescence[J]. , 2015, 23(9): 1453-1459.
[14]	朱春英, 付涛涛, 高习群, 马友光. Numerical Simulation of Concentration Field on Liquid Side around Bubble during Rising and Coalescing Process in Non-Newtonian Fluid[J]. , 2011, 19(5): 799-807.
[15]	向阳, 文利雄, 初广文, 邵磊, 肖光庭, 陈建峰. Modeling of the Precipitation Process in a Rotating Packed Bed and Its Experimental Validation[J]. , 2010, 18(2): 249-257.