1
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Li X, Zhang G, Hu C, Lan H, Liu H. Demulsification with simultaneous water purification by coupling filtration and enhanced oil droplet coalescence at anode interface in an electrochemical reactor. J Environ Sci (China) 2024; 146:118-126. [PMID: 38969440 DOI: 10.1016/j.jes.2023.06.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 06/03/2023] [Accepted: 06/10/2023] [Indexed: 07/07/2024]
Abstract
With the increasing demand of recycling disposal of industrial wastewater, oil-in-water (O/W) emulsion has been paid much attention in recent years owing to its high oil content. However, due to the presence of surfactant and salt, the emulsion was usually stable with complex physicochemical interfacial properties leading to increased processing difficulty. Herein, a novel flow-through electrode-based demulsification reactor (FEDR) was well designed for the treatment of saline O/W emulsion. In contrast to 53.7% for electrical demulsification only and 80.3% for filtration only, the COD removal efficiency increased to 92.8% under FEDR system. Moreover, the pore size of electrode and the applied voltage were two key factors that governed the FEDR demulsification performance. By observing the morphology of oil droplets deposited layer after different operation conditions and the behavior of oil droplets at the electrode surface under different voltage conditions, the mechanism was proposed that the oil droplets first accumulated on the surface of flow-through electrode by sieving effect, subsequently the gathered oil droplets could further coalesce with the promoting effect of the anode, leading to a high-performing demulsification. This study offers an attractive option of using flow-through electrode to accomplish the oil recovery with simultaneous water purification.
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Affiliation(s)
- Xi Li
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Gong Zhang
- Center for Water and Ecology, State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Chengzhi Hu
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Huachun Lan
- Center for Water and Ecology, State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Huijuan Liu
- Center for Water and Ecology, State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China.
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2
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Yuan S, Yang X, Zhang N, Zhang J, Yuan S, Wang Z. Molecular insights into the adsorption and penetration of oil droplets on hydrophobic membrane in membrane distillation. WATER RESEARCH 2024; 253:121329. [PMID: 38387269 DOI: 10.1016/j.watres.2024.121329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 01/19/2024] [Accepted: 02/16/2024] [Indexed: 02/24/2024]
Abstract
Membrane fouling induced by oily substances significantly constrains membrane distillation performance in treating hypersaline oily wastewater. Overcoming this challenge necessitates a heightened fundamental understanding of the oil fouling phenomenon. Herein, the adsorption and penetration mechanism of oil droplets on hydrophobic membranes in membrane distillation process was investigated at the molecular level. Our results demonstrated that the adsorption and penetration of oil droplets were divided into four stages, including the free stage, contact stage, spreading stage, and equilibrium stage. Due to the extensive non-polar surface distribution of the polytetrafluoroethylene (PTFE) membrane (comprising 95.41 %), the interaction between oil molecules and PTFE was primarily governed by van der Waals interaction. Continuous oil droplet membrane fouling model revealed that the new oil droplet molecules preferred to penetrate into membrane pores where oil droplets already existed. The penetration of resin (a component of medium-quality oil droplets) onto PTFE membrane pores required the "pre-paving" of light crude oil. Finally, the ΔE quantitative structure-activity relationships (QSAR) models were developed to evaluate the penetration mechanism of pollutant molecules on the PTFE membrane. This research provides new insights for improving sustainable membrane distillation technologies in treating saline oily wastewater.
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Affiliation(s)
- Shideng Yuan
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, PR China
| | - Xin Yang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, PR China
| | - Na Zhang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, PR China
| | - Jiaojiao Zhang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, PR China
| | - Shiling Yuan
- Key Lab of Colloid and Interface Chemistry, Shandong University, Jinan 250100, PR China
| | - Zhining Wang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, PR China.
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3
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Jia H, Ren J, Kong Y, Ji Z, Guo S, Li J. Recent Advances in Dopamine-Based Membrane Surface Modification and Its Membrane Distillation Applications. MEMBRANES 2024; 14:81. [PMID: 38668109 PMCID: PMC11052433 DOI: 10.3390/membranes14040081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 09/02/2023] [Accepted: 09/08/2023] [Indexed: 04/28/2024]
Abstract
Surface modification of membranes is essential for improving flux and resistance to contamination for membranes. This is of great significance for membrane distillation, which relies on the vapor pressure difference across the membrane as the driving force. In recent years, biomimetic mussel-inspired substances have become the research hotspots. Among them, dopamine serves as surface modifiers that would achieve highly desirable and effective membrane applications owing to their unique physicochemical properties, such as universal adhesion, enhanced hydrophilicity, tunable reducibility, and excellent thermal conductivity. The incorporation of a hydrophilic layer, along with the utilization of photothermal properties and post-functionalization capabilities in modified membranes, effectively addresses challenges such as low flux, contamination susceptibility, and temperature polarization during membrane distillation. However, to the best of our knowledge, there is still a lack of comprehensive and in-depth discussions. Therefore, this paper systematically compiles the modification method of dopamine on the membrane surface and summarizes its application and mechanism in membrane distillation for the first time. It is believed that this paper would provide a reference for dopamine-assisted membrane separation during production, and further promote its practical application.
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Affiliation(s)
| | - Jing Ren
- Shanxi Laboratory for Yellow River, Institute of Resources and Environmental Engineering, Shanxi University, Taiyuan 030006, China; (H.J.); (Y.K.); (Z.J.); (S.G.)
| | | | | | | | - Jianfeng Li
- Shanxi Laboratory for Yellow River, Institute of Resources and Environmental Engineering, Shanxi University, Taiyuan 030006, China; (H.J.); (Y.K.); (Z.J.); (S.G.)
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4
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Manouchehri M. A comprehensive review on state-of-the-art antifouling super(wetting and anti-wetting) membranes for oily wastewater treatment. Adv Colloid Interface Sci 2024; 323:103073. [PMID: 38160525 DOI: 10.1016/j.cis.2023.103073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 12/19/2023] [Accepted: 12/20/2023] [Indexed: 01/03/2024]
Abstract
One of the most dangerous types of pollution to the environment is oily wastewater, which is produced from a number of industrial sources and can cause damage to the environment, people, and creatures. To overcome this issue, membrane technology as an advanced method has been considered for treating oily wastewater due to its stability, high removal efficiency, and simplicity in scaling up. Membrane fouling, or the accumulation of oil droplets at or within the membrane pores, compromises the efficiency of membrane separation and water flux. In the last decade, the fabrication of membranes with specific wettability to reduce fouling has received much consideration. The purpose of this article is to offer a literature overview of all fabricated anti-fouling super(wetting and anti-wetting) membranes for applicable membrane processes for the separation of immiscible and emulsified oil/water mixtures. In this review, we first explain membrane fouling and discuss methods for preventing it. Afterwards, in all membrane separation processes, including pressure-driven, gravity-driven, and thermal-driven, membranes based on the form and density of oil are categorized as oil-removing or water-removing with special wettability, and then their wettability modification with different materials is particularly discussed. Finally, the prospect of anti-fouling membrane fabrication in the future is presented.
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Affiliation(s)
- Massoumeh Manouchehri
- Department of Chemical Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran.
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5
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Hou Y, Shah P, Constantoudis V, Gogolides E, Kappl M, Butt HJ. A super liquid-repellent hierarchical porous membrane for enhanced membrane distillation. Nat Commun 2023; 14:6886. [PMID: 37898660 PMCID: PMC10613234 DOI: 10.1038/s41467-023-42204-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 09/28/2023] [Indexed: 10/30/2023] Open
Abstract
Membrane distillation (MD) is an emerging desalination technology that exploits phase change to separate water vapor from saline based on low-grade energy. As MD membranes come into contact with saline for days or weeks during desalination, membrane pores have to be sufficiently small (typically <0.2 µm) to avoid saline wetting into the membrane. However, in order to achieve high distillation flux, the pore size should be large enough to maximize transmembrane vapor transfer. These conflicting requirements of pore geometry pose a challenge to membrane design and currently hinder broader applications of MD. To address this fundamental challenge, we developed a super liquid-repellent membrane with hierarchical porous structures by coating a polysiloxane nanofilament network on a commercial micro-porous polyethersulfone membrane matrix. The fluorine-free nanofilament coating effectively prevents membrane wetting under high hydrostatic pressure (>11.5 bar) without compromising vapor transport. With large inner micro-porous structures, the nanofilament-coated membrane improves the distillation flux by up to 60% over the widely used commercially available membranes, while showing excellent salt rejection and operating stability. Our approach will allow the fabrication of high-performance composite membranes with multi-scale porous structures that have wide-ranging applications beyond desalination, such as in cleaning wastewater.
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Affiliation(s)
- Youmin Hou
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
- School of Power and Mechanical Engineering, Wuhan University, 430072, Wuhan, China
| | - Prexa Shah
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | | | - Evangelos Gogolides
- Institute of Nanoscience and Nanotechnology NCSR Demokritos, 15341, Agia Paraskevi, Greece
| | - Michael Kappl
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany.
| | - Hans-Jürgen Butt
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
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6
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Yang X, Zhang N, Zhang J, Liu W, Zhao M, Lin S, Wang Z. Nanocomposite Hydrogel Engineered Janus Membrane for Membrane Distillation with Robust Fouling, Wetting, and Scaling Resistance. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:15725-15735. [PMID: 37787747 DOI: 10.1021/acs.est.3c04540] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
Membrane distillation (MD) is considered to be rather promising for high-salinity wastewater reclamation. However, its practical viability is seriously challenged by membrane wetting, fouling, and scaling issues arising from the complex components of hypersaline wastewater. It remains extremely difficult to overcome all three challenges at the same time. Herein, a nanocomposite hydrogel engineered Janus membrane has been facilely constructed for desired wetting/fouling/scaling-free properties, where a cellulose nanocrystal (CNC) composite hydrogel layer is formed in situ atop a microporous hydrophobic polytetrafluoroethylene (PTFE) substrate intermediated by an adhesive layer. By the synergies of the elevated membrane liquid entry pressure, inhibited surfactant diffusion, and highly hydratable surface imparted by the hydrogel/CNC (HC) layer, the resultant HC-PTFE membrane exhibits robust resistance to surfactant-induced wetting and oil fouling during 120 h of MD operation. Meanwhile, owing to the dense and hydroxyl-abundant surface, it is capable of mitigating gypsum scaling and scaling-induced wetting, resulting in a high normalized flux and low distillate conductivity at a concentration factor of 5.2. Importantly, the HC-PTFE membrane enables direct desalination of real hypersaline wastewater containing broad-spectrum foulants with stable vapor flux and robust salt rejection (99.90%) during long-term operation, demonstrating its great potential for wastewater management in industrial scenarios.
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Affiliation(s)
- Xin Yang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, People's Republic of China
| | - Na Zhang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, People's Republic of China
| | - Jiaojiao Zhang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, People's Republic of China
| | - Weifan Liu
- Department of Civil and Environmental Engineering and Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee 37235-1831, United States
| | - Mingwei Zhao
- Key Laboratory of Unconventional Oil & Gas Development, Ministry of Education, School of Petroleum Engineering, China University of Petro1eum (East China), Qingdao 266580, People's Republic of China
| | - Shihong Lin
- Department of Civil and Environmental Engineering and Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee 37235-1831, United States
| | - Zhining Wang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, People's Republic of China
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7
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Sun C, Lin B, Zheng X, Dong Y, Zhao M, Tang CY. Robust ceramic-based graphene membrane for challenging water treatment with enhanced fouling and scaling resistance. WATER RESEARCH 2023; 243:120348. [PMID: 37516075 DOI: 10.1016/j.watres.2023.120348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 07/07/2023] [Accepted: 07/11/2023] [Indexed: 07/31/2023]
Abstract
Membrane fouling and scaling are two challenges for efficient treatment of hypersaline wastewater, greatly hindering separation performance and operation stability of desalination membranes. In this work, we report a smooth ceramic-based graphene desalination membrane, exhibiting enhanced anti-fouling and anti-scaling ability and operational performance for efficient treatment of both synthetic and real industrial wastewaters, outperforming polypropylene (PP) membrane. For treatment of hypersaline waters containing organic or inorganic substance, we demonstrate that the graphene membrane exhibits more stable water flux and almost complete salt rejection (>99.9%) during constant operation. Enhanced anti-fouling and desalination performance of graphene membrane could be attributed to the lower attractive interaction force with foulant (-4.65 mJ m-2), lower surface roughness (Ra = 2.2 ± 0.1 nm) and higher affinity with water than PP membrane. Furthermore, an anti-scaling mechanism enabled by graphene membrane is evidenced, with a highlight on the roles of smooth graphene surface with lower roughness, less nucleation sites and lower binding force with scaling crystals. Importantly, even for industrial petrochemical wastewater, such a graphene membrane also exhibits relatively more stable water flux and promising oil and ions rejection during long-term operation, outperforming PP membrane. This study further confirms a promising practical application potential of robust ceramic-based graphene membrane for efficient treatment of more challenging hypersaline wastewater with complicated compositions, which is not feasible by conventional desalination membranes.
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Affiliation(s)
- Chunyi Sun
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Bin Lin
- School of Mechanical and Electrical Engineering, University of Electronic Science and Technology of China, 611731 Chengdu, China
| | - Xiangyong Zheng
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
| | - Yingchao Dong
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China.
| | - Min Zhao
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China.
| | - Chuyang Y Tang
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong, China.
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8
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Rastgar M, Moradi K, Burroughs C, Hemmati A, Hoek E, Sadrzadeh M. Harvesting Blue Energy Based on Salinity and Temperature Gradient: Challenges, Solutions, and Opportunities. Chem Rev 2023; 123:10156-10205. [PMID: 37523591 DOI: 10.1021/acs.chemrev.3c00168] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
Greenhouse gas emissions associated with power generation from fossil fuel combustion account for 25% of global emissions and, thus, contribute greatly to climate change. Renewable energy sources, like wind and solar, have reached a mature stage, with costs aligning with those of fossil fuel-derived power but suffer from the challenge of intermittency due to the variability of wind and sunlight. This study aims to explore the viability of salinity gradient power, or "blue energy", as a clean, renewable source of uninterrupted, base-load power generation. Harnessing the salinity gradient energy from river estuaries worldwide could meet a substantial portion of the global electricity demand (approximately 7%). Pressure retarded osmosis (PRO) and reverse electrodialysis (RED) are more prominent technologies for blue energy harvesting, whereas thermo-osmotic energy conversion (TOEC) is emerging with new promise. This review scrutinizes the obstacles encountered in developing osmotic power generation using membrane-based methods and presents potential solutions to overcome challenges in practical applications. While certain strategies have shown promise in addressing some of these obstacles, further research is still required to enhance the energy efficiency and feasibility of membrane-based processes, enabling their large-scale implementation in osmotic energy harvesting.
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Affiliation(s)
- Masoud Rastgar
- Department of Mechanical Engineering, Advanced Water Research Lab (AWRL), University of Alberta, 10-367 Donadeo Innovation Center for Engineering, Edmonton, Alberta T6G 1H9, Canada
| | - Kazem Moradi
- Department of Mechanical Engineering, Advanced Water Research Lab (AWRL), University of Alberta, 10-367 Donadeo Innovation Center for Engineering, Edmonton, Alberta T6G 1H9, Canada
- Department of Mechanical Engineering, Computational Fluid Engineering Laboratory, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Cassie Burroughs
- Department of Chemical & Materials Engineering, University of Alberta, 12-263 Donadeo Innovation Centre for Engineering, Edmonton, Alberta T6G 1H9, Canada
| | - Arman Hemmati
- Department of Mechanical Engineering, Computational Fluid Engineering Laboratory, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Eric Hoek
- Department of Civil & Environmental Engineering, University of California Los Angeles (UCLA), Los Angeles, California 90095-1593, United States
- Energy Storage & Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Mohtada Sadrzadeh
- Department of Mechanical Engineering, Advanced Water Research Lab (AWRL), University of Alberta, 10-367 Donadeo Innovation Center for Engineering, Edmonton, Alberta T6G 1H9, Canada
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9
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Yue RY, Yuan PC, Zhang CM, Wan ZH, Wang SG, Sun X. Robust self-cleaning membrane with superhydrophilicity and underwater superoleophobicity for oil-in-water separation. CHEMOSPHERE 2023; 330:138706. [PMID: 37068616 DOI: 10.1016/j.chemosphere.2023.138706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 03/27/2023] [Accepted: 04/14/2023] [Indexed: 05/14/2023]
Abstract
The discharge of oily wastewater has increased dramatically and will bring serious environmental problems. In this work, a self-cleaning and anti-fouling g-C3N4/TiO2/PVDF composite membrane was fabricated via the layer-by-layer approach. The surface of as-prepared composite membrane displayed a superhydrophilic and underwater superoleophobic behavior under irradiation with visible light. Also, upon irradiation with visible light, the fabricated g-C3N4/TiO2/PVDF composite membrane displayed enhanced permeation flux and improved oil removal efficiency as a result of the generation of hydroxyl free radicals during the photocatalytic filtration process. Significantly, irradiation with visible light remarkably improved reusability of the composite membrane by initiating photocatalytic decomposition of deposited oil foulants, which enabled removal of over 99.75% of oils, thus reaching a nearly 100% flux recovery ratio. Furthermore, the g-C3N4/TiO2/PVDF composite membrane exhibited great anti-fouling behavior in photocatalysis-assisted filtration. The mechanistic study revealed that underwater superhydrophobicity and the generation of free hydroxyl radicals jointly contributed to membrane anti-fouling. The greatest advantages of this g-C3N4/TiO2/PVDF composite membrane are that not only does it degrades the oil pollutants, but it also makes the membrane less vulnerable to fouling.
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Affiliation(s)
- Reng-Yu Yue
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, 230009, China; Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China; Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, H3G 1M8, Canada
| | - Peng-Cheng Yuan
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China
| | - Chun-Miao Zhang
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, 230009, China; Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China
| | - Zhang-Hong Wan
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Shu-Guang Wang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China
| | - Xuefei Sun
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, 230009, China; Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China.
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10
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Shi D, Gong T, Wang R, Qing W, Shao S. Control the hydrophilic layer thickness of Janus membranes by manipulating membrane wetting in membrane distillation. WATER RESEARCH 2023; 237:119984. [PMID: 37099871 DOI: 10.1016/j.watres.2023.119984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 04/07/2023] [Accepted: 04/18/2023] [Indexed: 05/09/2023]
Abstract
Janus membranes with asymmetric wettability have attracted wide attentions for their robust anti-oil-wetting/fouling abilities in membrane distillation (MD). Compared to traditional surface modification approaches, in this study, we provided a new approach which manipulated surfactant-induced wetting to fabricate Janus membrane with a controllable thickness of the hydrophilic layer. The membranes with 10, 20, and 40 μm of wetted layers were obtained by stopping the wetting induced by 40 mg L-1 Triton X-100 (J = 25 L m-2 h-1) at about 15, 40, and 120 s, respectively. Then, the wetted layers were coated using polydopamine (PDA) to fabricate the Janus membranes. The resulting Janus membranes showed no significant change in porosities or pore size distributions compared with the virgin PVDF membrane. These Janus membranes exhibited low in-air water contact angles (< 50°), high underwater oil contact angles (> 145°), and low adhesion with oil droplets. Therefore, they all showed excellent oil-water separation performance with ∼100% rejection and stable flux. The Janus membranes showed no significant decline in flux, but a trade-off existed between the hydrophilic layer thicknesses and the vapor flux. Utilizing membranes with tunable hydrophilic layer thickness, we elucidated the underlying mechanism of such trade-off in mass transfer. Furthermore, the successful modification of membranes with different coatings and in-situ immobilization of silver nanoparticles indicated that this facile modification method is universal and can be further expanded for multifunctional membrane fabrication.
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Affiliation(s)
- Danting Shi
- School of Civil Engineering, Wuhan University, Wuhan, PR China
| | - Tengjing Gong
- School of Civil Engineering, Wuhan University, Wuhan, PR China
| | - Rui Wang
- Faculty of Resources and Environmental Science, Hubei University, Wuhan, PR China
| | - Weihua Qing
- Department of Civil and Environmental Engineering, New Jersey Institute of Technology, Newark, USA
| | - Senlin Shao
- School of Civil Engineering, Wuhan University, Wuhan, PR China.
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11
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Zhang N, Zhang J, Yang X, Zhou C, Zhu X, Liu B, Chen Y, Lin S, Wang Z. Janus Membrane with Hydrogel-like Coating for Robust Fouling and Wetting Resistance in Membrane Distillation. ACS APPLIED MATERIALS & INTERFACES 2023; 15:19504-19513. [PMID: 37022125 DOI: 10.1021/acsami.3c02781] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Membrane distillation (MD) is a promising technique for water reclamation from hypersaline wastewater. However, fouling and wetting of the hydrophobic membranes are two prominent challenges for the widespread application of MD. Herein, we developed an antiwetting and antifouling Janus membrane comprising a hydrogel-like polyvinyl alcohol/tannic acid (PVA/TA) top layer and a hydrophobic polytetrafluoroethylene (PTFE) membrane substrate via a facile and benign strategy combining mussel-amine co-deposition with the shrinkage-rehydration process. Interestingly, the vapor flux of the Janus membrane was not compromised, though a microscale PVA/TA layer was introduced, possibly due to the high water uptake and reduced water evaporation enthalpy of the hydrogel-like structure. Moreover, the PVA/TA-PTFE Janus membrane sustained stable MD performance while treating a challenging saline feed containing surfactants and mineral oils. The robust wetting resistance arises from the synergistic effects of the elevated liquid entry pressure (1.01 ± 0.02 MPa) of the membrane and the retardation of surfactant transport to the substrate PTFE layer. Meanwhile, the hydrogel-like PVA/TA layer hinders oil fouling due to its strongly hydrated state. Furthermore, the PVA/TA-PTFE membrane exhibited improved performance in purifying shale gas wastewater and landfill leachate. This study provides new insights into the facile design and fabrication of promising MD membranes for hypersaline wastewater treatment.
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Affiliation(s)
- Na Zhang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, P. R. China
| | - Jiaojiao Zhang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, P. R. China
| | - Xin Yang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, P. R. China
| | - Changxu Zhou
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, P. R. China
| | - Xiaohui Zhu
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, P. R. China
| | - Baicang Liu
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu, Sichuan 610207, P. R. China
| | - Yue Chen
- State Key Lab of Fluorinated Functional Membrane Materials, Shandong Dongyue Polymer Material Co., Ltd., Zibo 256401, P. R. China
| | - Shihong Lin
- Department of Civil and Environmental Engineering and Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee 37235-1831, United States
| | - Zhining Wang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, P. R. China
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12
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Zhang R, Deng C, Hou X, Li T, Lu Y, Liu F. Preparation and Characterization of a Janus Membrane with an "Integrated" Structure and Adjustable Hydrophilic Layer Thickness. MEMBRANES 2023; 13:415. [PMID: 37103842 PMCID: PMC10143739 DOI: 10.3390/membranes13040415] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 03/19/2023] [Accepted: 03/20/2023] [Indexed: 06/19/2023]
Abstract
Oil-water emulsions are types of wastewater that are difficult to treat. A polyvinylidene fluoride hydrophobic matrix membrane was modified using a hydrophilic polymer, poly(vinylpyrrolidone-vinyltriethoxysilane), to form a representative Janus membrane with asymmetric wettability. The performance parameters of the modified membrane, such as the morphological structure, the chemical composition, the wettability, the hydrophilic layer thickness, and the porosity, were characterized. The results showed that the hydrolysis, migration, and thermal crosslinking of the hydrophilic polymer in the hydrophobic matrix membrane contributed to an effective hydrophilic layer on the surface. Thus, a Janus membrane with unchanged membrane porosity, a hydrophilic layer with controllable thickness, and hydrophilic/hydrophobic layer "structural integration" was successfully prepared. The Janus membrane was used for the switchable separation of oil-water emulsions. The separation flux of the oil-in-water emulsions on the hydrophilic surface was 22.88 L·m-2·h-1 with a separation efficiency of up to 93.35%. The hydrophobic surface exhibited a separation flux of 17.45 L·m-2·h-1 with a separation efficiency of 91.47% for the water-in-oil emulsions. Compared to the lower flux and separation efficiency of purely hydrophobic and hydrophilic membranes, the Janus membrane exhibited better separation and purification effects for both oil-water emulsions.
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Affiliation(s)
- Ruixian Zhang
- Guangxi Key Laboratory for Polysaccharide Materials and Modification, Guangxi Higher Education Institutes Key Laboratory for New Chemical and Biological Transformation Process Technology, School of Chemistry and Chemical Engineering, Guangxi Minzu University, Nanning 530006, China
| | - Chengyu Deng
- Guangxi Key Laboratory for Polysaccharide Materials and Modification, Guangxi Higher Education Institutes Key Laboratory for New Chemical and Biological Transformation Process Technology, School of Chemistry and Chemical Engineering, Guangxi Minzu University, Nanning 530006, China
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Xueyi Hou
- Guangxi Key Laboratory for Polysaccharide Materials and Modification, Guangxi Higher Education Institutes Key Laboratory for New Chemical and Biological Transformation Process Technology, School of Chemistry and Chemical Engineering, Guangxi Minzu University, Nanning 530006, China
| | - Tiantian Li
- School of Materials Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
| | - Yanyue Lu
- Guangxi Key Laboratory for Polysaccharide Materials and Modification, Guangxi Higher Education Institutes Key Laboratory for New Chemical and Biological Transformation Process Technology, School of Chemistry and Chemical Engineering, Guangxi Minzu University, Nanning 530006, China
| | - Fu Liu
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
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13
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Afsari M, Park MJ, Kaleekkal NJ, Motsa MM, Shon HK, Tijing L. Janus Distillation Membrane via Mussel-Inspired Inkjet Printing Modification for Anti-Oil Fouling Membrane Distillation. MEMBRANES 2023; 13:membranes13020191. [PMID: 36837695 PMCID: PMC9961188 DOI: 10.3390/membranes13020191] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 01/29/2023] [Accepted: 01/30/2023] [Indexed: 05/31/2023]
Abstract
In this work, inkjet printing technology was used to print a thin layer of a hydrophilic solution containing polydopamine as a binder and polyethyleneimine as a strong hydrophilic agent on a commercial hydrophobic membrane to produce a Janus membrane for membrane distillation. The pristine and modified membranes were tested in a direct-contact membrane distillation system with mineral oil-containing feedwater. The results revealed that an integrated and homogenous hydrophilic layer was printed on the membrane with small intrusions in the pores. The membrane, which contained three layers of inkjet-printed hydrophilic layers, showed a high underwater oil contact angle and a low in-air water contact angle. One-layer inkjet printing was not robust enough, but the triple-layer coated modified membrane maintained its anti-oil fouling performance even for a feed solution containing 70 g/L NaCl and 0.01 v/v% mineral oil concentration with a flux of around 20 L/m2h. This study implies the high potential of the inkjet printing technique as a facile surface modification strategy to improve membrane performance.
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Affiliation(s)
- Morteza Afsari
- Centre for Technology in Water and Wastewater (CTWW), School of Civil and Environmental Engineering, University of Technology Sydney, 15 Broadway, P.O. Box 123, Ultimo, NSW 2007, Australia
- ARC Research Hub for Nutrients in a Circular Economy (NiCE), School of Civil and Environmental Engineering, University of Technology Sydney, 15 Broadway, P.O. Box 123, Ultimo, NSW 2007, Australia
| | - Myoung Jun Park
- Centre for Technology in Water and Wastewater (CTWW), School of Civil and Environmental Engineering, University of Technology Sydney, 15 Broadway, P.O. Box 123, Ultimo, NSW 2007, Australia
| | - Noel Jacob Kaleekkal
- Membrane Separation Group, Department of Chemical Engineering, National Institute of Technology Calicut (NITC), Kozhikode 673601, India
| | - Mxolisi M. Motsa
- Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science, Engineering and Technology, University of South Africa, Johannesburg 1709, South Africa
| | - Ho Kyong Shon
- Centre for Technology in Water and Wastewater (CTWW), School of Civil and Environmental Engineering, University of Technology Sydney, 15 Broadway, P.O. Box 123, Ultimo, NSW 2007, Australia
- ARC Research Hub for Nutrients in a Circular Economy (NiCE), School of Civil and Environmental Engineering, University of Technology Sydney, 15 Broadway, P.O. Box 123, Ultimo, NSW 2007, Australia
| | - Leonard Tijing
- Centre for Technology in Water and Wastewater (CTWW), School of Civil and Environmental Engineering, University of Technology Sydney, 15 Broadway, P.O. Box 123, Ultimo, NSW 2007, Australia
- ARC Research Hub for Nutrients in a Circular Economy (NiCE), School of Civil and Environmental Engineering, University of Technology Sydney, 15 Broadway, P.O. Box 123, Ultimo, NSW 2007, Australia
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14
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Zhou J, Zuo C, Tian H, Wang W, Yang J, Crommen J, Jiang Z, Wang Q. Magnetic composite membrane roll column for rapid and high efficiency separation of antibodies. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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15
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Ren K, Lu X, Zheng S, Zhang S, Ma R, Yang Y. A novel preparation method for protective coating on hydrophobic membrane based on vapor opposite transmission process. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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16
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Plasma-assisted facile fabrication of omniphobic graphene oxide membrane with anti-wetting property for membrane distillation. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.121207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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17
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Yan X, Yang C, Ma C, Tao H, Cheng S, Chen L, Wang G, Lin X, Yao C. A novel janus membrane modified by MXene for enhanced anti-fouling and anti-wetting in direct contact membrane distillation. CHEMOSPHERE 2022; 307:136114. [PMID: 35998734 DOI: 10.1016/j.chemosphere.2022.136114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 08/08/2022] [Accepted: 08/16/2022] [Indexed: 06/15/2023]
Abstract
Membrane fouling and wetting limit the applications of membrane distillation (MD) for wastewater treatment, especially when treating the wastewater with a high concentration of low surface tension substances such as oil and surfactants. In this paper, virgin polyvinylidene fluoride (PVDF) membrane was modified by polydimethylsiloxane (PDMS) to enhance anti-wetting ability. Then a thin polydopamine (PDA) layer was coated as a reaction platform for further modification. Polyethyleneimine (PEI) was cross-linked with PDA to form a uniform and stable layer, through hydrogen bonds and electrostatic interaction to immobilize hydrophilic MXene, which formed a Janus MXene-PVDF membrane. The MXene layer was the key for superoleophobicity and high liquid entry pressure (LEP) of membrane, capable of mitigating membrane fouling and wetting when dealing with low surface tension wastewater (LSTW). From the experiments results, pristine PVDF membrane showed severe fouling and wetting with flux decline and salt leakage during treatment of LSTW (surfactants containing water, oil-in-water emulsion and sodium dodecyl sulfate stabilized oil-in-water emulsion). However, under the same conditions, the Janus MXene-PVDF membrane exhibited remarkably stable flux (9.3 kg m-2h-1, 9.1 kg m-2h-1, 10.2 kg m-2h-1) and salt rejection (almost 99.9%) after 15 h operation. Excellent fouling and wetting resistance of MXene-PVDF membrane was mainly attributed to its superhydrophilic and superoleophobic top surface (in-air water contact angle: 30.2°, under-water oil contact angle: 169.9°) and hydrophobic substrate (in-air water contact angle: 130.8°), together with high LEP value (91.1 Kpa). This study provides a viable route to fabricated a Janus membrane with outstanding fouling and wetting resistance for LSTW, oily wastewater and it has great potential for sewage treatment in the future.
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Affiliation(s)
- Xiaoju Yan
- College of Hydrology and Water Resources, Hohai University, Nanjing, 210098, China
| | - Chengyu Yang
- College of Hydrology and Water Resources, Hohai University, Nanjing, 210098, China
| | - Cong Ma
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Environmental Science and Engineering, Tiangong University, Tianjin, 300387, China.
| | - Hui Tao
- College of Environment, Hohai University, Nanjing, 210098, China
| | - Shirong Cheng
- College of Hydrology and Water Resources, Hohai University, Nanjing, 210098, China
| | - Lin Chen
- College of Hydrology and Water Resources, Hohai University, Nanjing, 210098, China
| | - Guodong Wang
- College of Hydrology and Water Resources, Hohai University, Nanjing, 210098, China
| | - Xinping Lin
- College of Hydrology and Water Resources, Hohai University, Nanjing, 210098, China
| | - Chengzhi Yao
- College of Hydrology and Water Resources, Hohai University, Nanjing, 210098, China
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18
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Lee S, Bayarkhuu B, Han Y, Kim HW, Jeong S, Boo C, Byun J. Multifunctional photo-Fenton-active membrane for solar-driven water purification. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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19
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Arjmand E, Mansourizadeh A, Ghaedi AM, Rahbari‐Sisakht M. Surface modification of porous polyvinylidene fluoride hollow fiber membrane by sulfonated poly(ether ether ketone) coating for membrane distillation of oily wastewater. J Appl Polym Sci 2022. [DOI: 10.1002/app.53196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ehsan Arjmand
- Department of Chemical Engineering, Membrane Science and Technology Research Center (MSTRC), Gachsaran Branch Islamic Azad University Gachsaran Iran
| | - Amir Mansourizadeh
- Department of Chemical Engineering, Membrane Science and Technology Research Center (MSTRC), Gachsaran Branch Islamic Azad University Gachsaran Iran
| | - Abdol Mohammad Ghaedi
- Department of Chemistry, Membrane Science and Technology Research Center (MSTRC), Gachsaran Branch Islamic Azad University Gachsaran Iran
| | - Masoud Rahbari‐Sisakht
- Department of Chemical Engineering, Membrane Science and Technology Research Center (MSTRC), Gachsaran Branch Islamic Azad University Gachsaran Iran
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20
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Asymmetric superwetting Janus structure for fouling- and scaling-resistant membrane distillation. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120697] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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21
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Li B, Hou D, Li C, Yun Y. Mussels-inspired design a carbon nanotube based underwater superoleophobic/hydrophobic Janus membrane with robust anti-oil-fouling for direct contact membrane distillation. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121163] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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22
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Feng D, Li X, Wang Z. Comparison of omniphobic membranes and Janus membranes with a dense hydrophilic surface layer for robust membrane distillation. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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23
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Li H, Raza A, Yuan S, AlMarzooqi F, Fang NX, Zhang T. Biomimetic on-chip filtration enabled by direct micro-3D printing on membrane. Sci Rep 2022; 12:8178. [PMID: 35581265 PMCID: PMC9114119 DOI: 10.1038/s41598-022-11738-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 04/25/2022] [Indexed: 11/09/2022] Open
Abstract
Membrane-on-chip is of growing interest in a wide variety of high-throughput environmental and water research. Advances in membrane technology continuously provide novel materials and multi-functional structures. Yet, the incorporation of membrane into microfluidic devices remains challenging, thus limiting its versatile utilization. Herein, via micro-stereolithography 3D printing, we propose and fabricate a "fish gill" structure-integrated on-chip membrane device, which has the self-sealing attribute at structure-membrane interface without extra assembling. As a demonstration, metallic micromesh and polymeric membrane can also be easily embedded in 3D printed on-chip device to achieve anti-fouling and anti-clogging functionality for wastewater filtration. As evidenced from in-situ visualization of structure-fluid-foulant interactions during filtration process, the proposed approach successfully adopts the fish feeding mechanism, being able to "ricochet" foulant particles or droplets through hydrodynamic manipulation. When benchmarked with two common wastewater treatment scenarios, such as plastic micro-particles and emulsified oil droplets, our biomimetic filtration devices exhibit 2 ~ 3 times longer durability for high-flux filtration than devices with commercial membrane. This proposed 3D printing-on-membrane approach, elegantly bridging the fields of microfluidics and membrane science, is instrumental to many other applications in energy, sensing, analytical chemistry and biomedical engineering.
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Affiliation(s)
- Hongxia Li
- Department of Mechanical Engineering, Masdar Institute, Khalifa University of Science and Technology, P.O. Box 127788, Abu Dhabi, UAE
| | - Aikifa Raza
- Department of Mechanical Engineering, Masdar Institute, Khalifa University of Science and Technology, P.O. Box 127788, Abu Dhabi, UAE
| | - Shaojun Yuan
- College of Chemical Engineering, Sichuan University, Chengdu, 610065, China
| | - Faisal AlMarzooqi
- Department of Chemical Engineering, Masdar Institute, Khalifa University of Science and Technology, P.O. Box 127788, Abu Dhabi, UAE
| | - Nicholas X Fang
- Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA
| | - TieJun Zhang
- Department of Mechanical Engineering, Masdar Institute, Khalifa University of Science and Technology, P.O. Box 127788, Abu Dhabi, UAE.
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24
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Zhong L, Zhang X, Ma J, Liu D, Liu D, Wang Y, Cui F, Wang W. Synergy of feed-side aeration and super slippery interface in membrane distillation for enhanced water flux and scaling mitigation. WATER RESEARCH 2022; 215:118246. [PMID: 35259560 DOI: 10.1016/j.watres.2022.118246] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 02/21/2022] [Accepted: 02/28/2022] [Indexed: 06/14/2023]
Abstract
Membrane distillation (MD) is an acknowledged promising technology for desalinating hypersaline brine, and as such can be a suitable candidate to further concentrate the seawater discharged from reverse osmosis process. Mineral scaling represents a major constraint against the application of MD for further desalination of concentrated seawater, especially when considering CaSO4 (gypsum) and NaCl. Up until now, it has been difficult to rely solely on membrane modification to mitigate CaSO4 scaling. Permeate-side aeration can lessen CaSO4 scaling, but does not permit to increase the water flux. Herein, we proposed the synergy of feed-side aeration and super slippery interface to perform concentrated seawater desalination via direct contact membrane distillation. The results of this study show that this synergistic effect could significantly increase the water flux, which was approximately 1.5 times higher in comparison to the membrane without aeration. Moreover, the synergistic effect effectively alleviates the complex scaling of concentrated seawater, achieving 90 wt% water recovery rate. Based on the observed results, we elucidated the mechanisms governing the enhanced water flux and scaling mitigation driven by the synergistic effect. In addition, we studied the optimal working condition for this system, unveiling that low-intensity large bubbles are more suitable as they lead to a better equilibrium between the economics and functionality of the process.
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Affiliation(s)
- Lingling Zhong
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Xiaoxin Zhang
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Jiaxiang Ma
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Dongqing Liu
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Dongmei Liu
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Yu Wang
- School of Materials Science and Environment, Zhengzhou University, Zhengzhou 450001, China
| | - Fuyi Cui
- College of Urban Construction and Environmental Engineering, Chongqing University, Chongqing 400045, China
| | - Wei Wang
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Environment, Harbin Institute of Technology, Harbin 150090, China.
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25
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Li J, Ren LF, Huang M, Yang J, Shao J, He Y. Facile preparation of omniphobic PDTS-ZnO-PVDF membrane with excellent anti-wetting property in direct contact membrane distillation (DCMD). J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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26
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Apel PY, Velizarov S, Volkov AV, Eliseeva TV, Nikonenko VV, Parshina AV, Pismenskaya ND, Popov KI, Yaroslavtsev AB. Fouling and Membrane Degradation in Electromembrane and Baromembrane Processes. MEMBRANES AND MEMBRANE TECHNOLOGIES 2022. [DOI: 10.1134/s2517751622020032] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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27
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Shi Y, Zheng Q, Ding L, Yang F, Jin W, Tang CY, Dong Y. Electro-Enhanced Separation of Microsized Oil-in-Water Emulsions via Metallic Membranes: Performance and Mechanistic Insights. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:4518-4530. [PMID: 35258928 DOI: 10.1021/acs.est.2c00336] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Conventional separation membranes suffer from evitable fouling and flux decrease for water treatment applications. Herein, a novel protocol of electro-enhanced membrane separation is proposed for the efficient treatment of microsized emulsions (∼1 μm) by rationally designing robust electroresponsive copper metallic membranes, which could mitigate oil fouling and coenhance permeance (from ∼1026 to ∼2516 L·m-2·h-1·bar-1) and rejection (from ∼87 to ∼98%). High-flux Cu membranes exhibit superior ductility and electrical conductivity, enabling promising electroactivity. Separation performance and the fouling mechanism were studied under different electrical potentials and ionic strengths. Application of negative polarization into a large-pore (∼2.1 μm) Cu membrane is favorable to not only almost completely reject smaller-sized oil droplets (∼1 μm) but also achieve antifouling and anticorrosion functions. Moreover, surfactants around oil droplets might be redistributed due to electrostatic repulsion, which effectively enhances the steric hindrance effect between neighboring oil droplets, mitigating oil coalescence and consequently membrane fouling. Furthermore, due to the screening effect of surfactants, the presence of low-concentration salts increases the adsorption of surfactants at the oil-water interface, thus preventing oil coalescence via decreasing oil-water interfacial tension. However, under high ionic strengths, the fouling mechanism converts from cake filtration to a complete blocking model due to the reduced electrostatic repulsion between the Cu membrane and oil droplets. This work would provide mechanistic insights into electro-enhanced antifouling for not only oil emulsion separation but also more water treatment applications using rationally designed novel electroresponsive membranes.
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Affiliation(s)
- Yongxuan Shi
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Qifeng Zheng
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Liujie Ding
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Fenglin Yang
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Wenbiao Jin
- School of Civil and Environmental Engineering, Harbin Institute of Technology, Shenzhen 518055, China
| | - Chuyang Y Tang
- Department of Civil Engineering, The University of Hong Kong, Pokfulam 999077, Hong Kong, China
| | - Yingchao Dong
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
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28
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Wu M, Ding S, Deng L, Wang X. PPy nanotubes-enabled in-situ heating nanofibrous composite membrane for solar-driven membrane distillation. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.119995] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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29
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Kharraz JA, Farid MU, Jassby D, An AK. A systematic study on the impact of feed composition and substrate wettability on wetting and fouling of omniphobic and janus membranes in membrane distillation. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2021.119873] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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30
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Wang X, Sun K, Zhang G, Yang F, Lin S, Dong Y. Robust zirconia ceramic membrane with exceptional performance for purifying nano-emulsion oily wastewater. WATER RESEARCH 2022; 208:117859. [PMID: 34801820 DOI: 10.1016/j.watres.2021.117859] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 08/23/2021] [Accepted: 11/09/2021] [Indexed: 06/13/2023]
Abstract
While membrane-based oil-water separation has been widely explored, using conventional membranes to treat oily wastewaters remains practically challenging especially when such wastewaters contain more stable nano-sized oil droplets and are of high oil content, and harsh chemical conditions. Herein, we report a novel protocol of efficiently separating both synthetic and real oil nano-emulsions via specially designed robust zirconia membranes. The best-performing zirconia membrane, fabricated at low sintering temperature, has relatively uniform sub-100 nm pores and is underwater superoleophobic. Such zirconia membranes possess not only outstanding separation performance under long-term operation but robust structural stability at harsh conditions. At different cross-flow velocities, a combined model of intermediate pore blocking and cake filtration dominated membrane fouling behavior. Specifically, at high pH value (especially > pH(IEP)), membrane fouling was effectively mitigated due to a dominant role of electrostatic repulsion interaction at membrane-oil interface. Compared with conventional and commercial ceramic membranes, our zirconia membrane is the first reported in literature that can effectively reject nano-sized oil droplets (∼18 nm) with over 99% rejection. Moreover, the zirconia membrane has also been challenged with real degreasing wastewater with very high oil content (∼4284 mg L-1) and pH (∼12.4) and delivered consistently high separation performance over many operation cycles.
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Affiliation(s)
- Xueling Wang
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian, Liaoning 116024, China
| | - Kuo Sun
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian, Liaoning 116024, China
| | - Guoquan Zhang
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian, Liaoning 116024, China
| | - Fenglin Yang
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian, Liaoning 116024, China
| | - Shihong Lin
- Department of Civil and Environmental Engineering, Vanderbilt University, Nashville, TN 37235, United States
| | - Yingchao Dong
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian, Liaoning 116024, China.
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31
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Chen J, Low ZX, Feng S, Zhong Z, Xing W, Wang H. Nanoarchitectonics for Electrospun Membranes with Asymmetric Wettability. ACS APPLIED MATERIALS & INTERFACES 2021; 13:60763-60788. [PMID: 34913668 DOI: 10.1021/acsami.1c16047] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Membranes with asymmetric wettability have attracted significant interest by virtue of their unique transport characteristics and functionalities arising from different wetting behaviors of each membrane surface. The cross-sectional wettability distinction enables a membrane to realize directional liquid transport or multifunction integration, resulting in rapid advance in applications, such as moisture management, fog collection, oil-water separation, and membrane distillation. Compared with traditional homogeneous membranes, these membranes possess enhanced transport performance and higher separation efficiency owing to the synergistic or individual effects of asymmetric wettability. This Review covers the recent progress in fabrication, transport mechanisms, and applications of electrospun membranes with asymmetric wettability and provides a perspective on future development in this important area.
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Affiliation(s)
- Jiwang Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing 210009, China
| | - Ze-Xian Low
- Department of Chemical Engineering, Monash University, Clayton, Victoria 3800, Australia
| | - Shasha Feng
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing 210009, China
| | - Zhaoxiang Zhong
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing 210009, China
| | - Weihong Xing
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing 210009, China
| | - Huanting Wang
- Department of Chemical Engineering, Monash University, Clayton, Victoria 3800, Australia
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Abstract
Water serves as an indispensable part of human life and production. On account of the overexploitation of traditional water sources, the demand for wastewater recycling is expanding rapidly. As a promising water treatment process, membrane distillation (MD) has been utilized in various wastewater treatments, such as desalination brine, textile wastewater, radioactive wastewater, and oily wastewater. This review summarized the investigation work applying MD in wastewater treatment, and the performance was comprehensively introduced. Moreover, the obstructions of industrialization, such as membrane fouling, membrane wetting, and high energy consumption, were discussed with the practical investigation. To cope with these problems, various strategies have been adopted to enhance MD performance, including coupling membrane processes and developing membranes with specific surface characteristics. In addition, the significance of nutrient recovery and waste heat utilization was indicated.
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El-badawy T, Othman MHD, Matsuura T, Bilad MR, Adam MR, Tai ZS, Ravi J, Ismail A, Rahman MA, Jaafar J, Usman J, Kurniawan TA. Progress in treatment of oilfield produced water using membrane distillation and potentials for beneficial re-use. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119494] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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34
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Facile preparation of antifouling nanofiltration membrane by grafting zwitterions for reuse of shale gas wastewater. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119310] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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35
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Colloidal interactions between model foulants and engineered surfaces: Interplay between roughness and surface energy. CHEMICAL ENGINEERING JOURNAL ADVANCES 2021. [DOI: 10.1016/j.ceja.2021.100138] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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36
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Zhao S, Jiang C, Fan J, Hong S, Mei P, Yao R, Liu Y, Zhang S, Li H, Zhang H, Sun C, Guo Z, Shao P, Zhu Y, Zhang J, Guo L, Ma Y, Zhang J, Feng X, Wang F, Wu H, Wang B. Hydrophilicity gradient in covalent organic frameworks for membrane distillation. NATURE MATERIALS 2021; 20:1551-1558. [PMID: 34294883 DOI: 10.1038/s41563-021-01052-w] [Citation(s) in RCA: 118] [Impact Index Per Article: 39.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 06/10/2021] [Indexed: 05/27/2023]
Abstract
Desalination can help to alleviate the fresh-water crisis facing the world. Thermally driven membrane distillation is a promising way to purify water from a variety of saline and polluted sources by utilizing low-grade heat. However, membrane distillation membranes suffer from limited permeance and wetting owing to the lack of precise structural control. Here, we report a strategy to fabricate membrane distillation membranes composed of vertically aligned channels with a hydrophilicity gradient by engineering defects in covalent organic framework films by the removal of imine bonds. Such functional variation in individual channels enables a selective water transport pathway and a precise liquid-vapour phase change interface. In addition to having anti-fouling and anti-wetting capability, the covalent organic framework membrane on a supporting layer shows a flux of 600 l m-2 h-1 with 85 °C feed at 16 kPa absolute pressure, which is nearly triple that of the state-of-the-art membrane distillation membrane for desalination. Our results may promote the development of gradient membranes for molecular sieving.
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Affiliation(s)
- Shuang Zhao
- Frontiers Science Center for High Energy Material, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, P. R. China
- Advanced Technology Research Institute (Jinan), Beijing Institute of Technology, Jinan, P. R. China
| | - Chenghao Jiang
- Frontiers Science Center for High Energy Material, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, P. R. China
| | - Jingcun Fan
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, CAS Center for Excellence in Complex System Mechanics, University of Science and Technology of China, Hefei, P. R. China
| | - Shanshan Hong
- Frontiers Science Center for High Energy Material, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, P. R. China
| | - Pei Mei
- Frontiers Science Center for High Energy Material, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, P. R. China
| | - Ruxin Yao
- Key Laboratory of Magnetic Molecules and Magnetic Information Materials, Ministry of Education, School of Chemistry and Materials Science, Shanxi Normal University, Linfen, P. R. China
| | - Yilin Liu
- Frontiers Science Center for High Energy Material, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, P. R. China
| | - Sule Zhang
- Frontiers Science Center for High Energy Material, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, P. R. China
| | - Hui Li
- Advanced Technology Research Institute (Jinan), Beijing Institute of Technology, Jinan, P. R. China
| | - Huaqian Zhang
- Advanced Technology Research Institute (Jinan), Beijing Institute of Technology, Jinan, P. R. China
| | - Chao Sun
- Frontiers Science Center for High Energy Material, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, P. R. China
| | - Zhenbin Guo
- Frontiers Science Center for High Energy Material, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, P. R. China
- Advanced Technology Research Institute (Jinan), Beijing Institute of Technology, Jinan, P. R. China
| | - Pengpeng Shao
- Frontiers Science Center for High Energy Material, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, P. R. China
| | - Yuhao Zhu
- Frontiers Science Center for High Energy Material, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, P. R. China
| | - Jinwei Zhang
- Frontiers Science Center for High Energy Material, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, P. R. China
| | - Linshuo Guo
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, P. R. China
| | - Yanhang Ma
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, P. R. China
| | - Jianqi Zhang
- Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, P. R. China
| | - Xiao Feng
- Frontiers Science Center for High Energy Material, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, P. R. China.
- Advanced Technology Research Institute (Jinan), Beijing Institute of Technology, Jinan, P. R. China.
| | - Fengchao Wang
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, CAS Center for Excellence in Complex System Mechanics, University of Science and Technology of China, Hefei, P. R. China.
| | - Hengan Wu
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, CAS Center for Excellence in Complex System Mechanics, University of Science and Technology of China, Hefei, P. R. China
| | - Bo Wang
- Frontiers Science Center for High Energy Material, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, P. R. China.
- Advanced Technology Research Institute (Jinan), Beijing Institute of Technology, Jinan, P. R. China.
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Yue D, Wang Y, Zhang H, Sun D, Li B, Ye X, Fang W, Liu M. A novel silver / activated - polyvinylidene fluoride - polydimethyl siloxane hydrophilic-hydrophobic Janus membrane for vacuum membrane distillation and its anti-oil-fouling ability. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119718] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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38
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Liao X, Goh K, Liao Y, Wang R, Razaqpur AG. Bio-inspired super liquid-repellent membranes for membrane distillation: Mechanisms, fabrications and applications. Adv Colloid Interface Sci 2021; 297:102547. [PMID: 34687984 DOI: 10.1016/j.cis.2021.102547] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 10/02/2021] [Accepted: 10/08/2021] [Indexed: 01/22/2023]
Abstract
With the aggravation of the global water crisis, membrane distillation (MD) for seawater desalination and hypersaline wastewater treatment is highlighted due to its low operating temperature, low hydrostatic pressure, and theoretically 100% rejection. However, some issues still impede the large-scale applications of MD technology, such as membrane fouling, scaling and unsatisfactory wetting resistance. Bio-inspired super liquid-repellent membranes have progressed rapidly in the past decades and been considered as one of the most promising approaches to overcome the above problems. This review for the first time systematically summarizes and analyzes the mechanisms of different super liquid-repellent surfaces, their preparation and modification methods, and anti-wetting/fouling/scaling performances in the MD process. Firstly, the topology theories of in-air superhydrophobic, in-air omniphobic and underwater superoleophobic surfaces are illustrated using different models. Secondly, the fabrication methods of various super liquid-repellent membranes are classified. The merits and demerits of each method are illustrated. Thirdly, the anti-wetting/fouling/scaling mechanisms of super liquid-repellent membranes are summarized. Finally, the conclusions and perspectives of the bio-inspired super liquid-repellent membranes are elaborated. It is anticipated that the systematic review herein can provide readers with foundational knowledge and current progress of super liquid-repellent membranes, and inspire researchers to overcome the challenges up ahead.
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Affiliation(s)
- Xiangjun Liao
- Sino-Canadian Joint R&D Center for Water and Environmental Safety, College of Environmental Science and Engineering, Nankai University, No.38 Tongyan Road, Jinnan District, Tianjin 300350, PR China
| | - Kunli Goh
- Singapore Membrane Technology Centre, Nanyang Environment and Water Res. Institute, Nanyang Technological University, 1 Cleantech Loop, Singapore 637141, Singapore
| | - Yuan Liao
- Sino-Canadian Joint R&D Center for Water and Environmental Safety, College of Environmental Science and Engineering, Nankai University, No.38 Tongyan Road, Jinnan District, Tianjin 300350, PR China.
| | - Rong Wang
- Singapore Membrane Technology Centre, Nanyang Environment and Water Res. Institute, Nanyang Technological University, 1 Cleantech Loop, Singapore 637141, Singapore; School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Abdul Ghani Razaqpur
- Sino-Canadian Joint R&D Center for Water and Environmental Safety, College of Environmental Science and Engineering, Nankai University, No.38 Tongyan Road, Jinnan District, Tianjin 300350, PR China.
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39
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Hydrophilic and underwater superoleophobic porous graphitic carbon nitride (g-C 3N 4) membranes with photo-Fenton self-cleaning ability for efficient oil/water separation. J Colloid Interface Sci 2021; 608:1960-1972. [PMID: 34749146 DOI: 10.1016/j.jcis.2021.10.162] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 10/25/2021] [Accepted: 10/26/2021] [Indexed: 12/28/2022]
Abstract
Due to the great fouling resistance property, (super)hydrophilic/underwater superoleophobic membranes are prevalent candidates for oil-polluted wastewater treatment. Even so, membrane fouling inevitably occurs during long-term operation. Therefore, it is of great significance to construct anti-fouling membranes with robust flux recovery. Herein, a polyvinyl pyrrolidone (PVP) coated porous potassium-doped g-C3N4 (PKCN) membrane was fabricated for the first time by vacuum filtration. The as-prepared membrane displays enhanced hydrophilicity and underwater superoleophobicity. The permeability of the membrane increased significantly after sonication treatment, which is attributed to the increased pore volume and small nanosheets size that shorten the transport pathway of water molecules. Importantly, owing to the high photo-Fenton activity, the PKCN membrane exhibits fast (within 15 min) and excellent flux recovery (96.5%) after the photo-Fenton cleaning process. Furthermore, after 10 repeated usages, the PKCN membrane still keeps stable permeability and excellent purification efficiency. This work opens a door for developing self-cleaning membranes with the superior anti-fouling ability for effective oil/water separation.
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40
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Feng D, Chen Y, Wang Z, Lin S. Janus Membrane with a Dense Hydrophilic Surface Layer for Robust Fouling and Wetting Resistance in Membrane Distillation: New Insights into Wetting Resistance. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:14156-14164. [PMID: 34597031 DOI: 10.1021/acs.est.1c04443] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Although membrane distillation (MD) has been identified as a promising technology to treat hypersaline wastewaters, its practical applications face two prominent challenges: membrane wetting and fouling. Herein, we report a facile and scalable approach for fabricating a Janus MD membrane comprising a dense polyvinyl alcohol (PVA) surface layer and a hydrophobic polyvinylidene fluoride (PVDF) membrane substrate. By testing the Janus membrane in direct contact MD experiments using feeds containing a sodium dodecyl sulfate (SDS) surfactant or/and mineral oil, we demonstrated that the dense Janus membrane can simultaneously resist wetting and fouling. This method represents the simplest approach to date for fabricating MD membranes with simultaneous wetting and fouling resistance. Importantly, we also unveil the mechanism of wetting resistance by measuring the breakthrough pressure and surfactant permeation (through the PVA layer) and found that wetting resistance imparted by a dense hydrophilic layer is attributable to capillary pressure. This new insight will potentially change the paradigm of fabricating wetting-resistant membranes and enable robust applications of MD and other membrane contactor processes facing challenges of pore wetting or/and membrane fouling.
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Affiliation(s)
- Dejun Feng
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Yuanmiaoliang Chen
- NUS Graduate School for Integrative Science and Engineering, National University of Singapore, Singapore 119077, Singapore
| | - Zhangxin Wang
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, China
- Guangdong Provincial Key Laboratory of Water Quality Improvement and Ecological Restoration for Watershed, Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Shihong Lin
- Department of Civil and Environmental Engineering, Vanderbilt University, Nashville, Tennessee 37235-1831, United States
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee 37235-1831, United States
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41
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Wang R, Duan Y, Xiong X. Preparation of hydrophilic poly(vinylidene fluoride) membrane by in‐situ grafting of N‐vinyl pyrrolidone via a reactive vapor induced phase separation procedure. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210446] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Rongrong Wang
- Department of Materials Science and Engineering, College of Materials Xiamen University Xiamen China
| | - Yidan Duan
- Department of Materials Science and Engineering, College of Materials Xiamen University Xiamen China
| | - Xiaopeng Xiong
- Department of Materials Science and Engineering, College of Materials Xiamen University Xiamen China
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42
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Wan Ikhsan SN, Yusof N, Aziz F, Ismail AF, Jaafar J, Wan Salleh WN, Misdan N. Superwetting materials for hydrophilic-oleophobic membrane in oily wastewater treatment. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 290:112565. [PMID: 33873023 DOI: 10.1016/j.jenvman.2021.112565] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 04/05/2021] [Accepted: 04/06/2021] [Indexed: 06/12/2023]
Abstract
The vast amount of oily wastewater released to the environment through industrialization has worsened the water quality in recent years, posing adverse impacts on general human health. Oil emulsified in water is one of the most difficult mixtures to be treated, making it imperative for new technology to be explored to address this issue. The use of conventional water treatment such as flotation, coagulation, precipitation, adsorption, and chemical treatment have low separation efficiencies and high energy costs, and are not applicable to the separation of oil/water emulsions. Therefore, there is a demand for more efficient methods and materials for the separations of immiscible oil/water mixtures and emulsions. Superwetting materials that can repel oil, while letting water pass through have been widely explored to fit into this concern. These materials usually make use of simultaneous hydrophilic/oleophobic mechanisms to allow a solid surface to separate oily emulsion with little to no use of energy. Also, by integrating specific wettability concepts with appropriate pore scale, solid surfaces may achieve separation of multifarious oil/water mixtures namely immiscible oil/water blends and consolidated emulsions. In this review, materials used to impart superwetting in solid surfaces by focusing on superhydrophilic/superoleophobic wetting properties of the materials categorized into fluorinated and non-fluorinated surface modification are summarized. In each material, its background, mechanism, fabricating processes, and their effects on solid surface's wetting capability are elaborated in detail. The materials reviewed in this paper are mainly organic and green, suggesting the alternative material to replace the fluorine group that is widely used to achieve oleophobicity in oily wastewater treatment.
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Affiliation(s)
- Syarifah Nazirah Wan Ikhsan
- Advanced Membrane Technology Research Centre (AMTEC), N29A, Universiti Teknologi Malaysia, 81310, Malaysia; School of Chemical and Energy Engineering (SCEE), Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Malaysia
| | - Norhaniza Yusof
- Advanced Membrane Technology Research Centre (AMTEC), N29A, Universiti Teknologi Malaysia, 81310, Malaysia; School of Chemical and Energy Engineering (SCEE), Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Malaysia.
| | - Farhana Aziz
- Advanced Membrane Technology Research Centre (AMTEC), N29A, Universiti Teknologi Malaysia, 81310, Malaysia; School of Chemical and Energy Engineering (SCEE), Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Malaysia
| | - Ahmad Fauzi Ismail
- Advanced Membrane Technology Research Centre (AMTEC), N29A, Universiti Teknologi Malaysia, 81310, Malaysia; School of Chemical and Energy Engineering (SCEE), Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Malaysia
| | - Juhana Jaafar
- Advanced Membrane Technology Research Centre (AMTEC), N29A, Universiti Teknologi Malaysia, 81310, Malaysia; School of Chemical and Energy Engineering (SCEE), Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Malaysia
| | - Wan Norharyati Wan Salleh
- Advanced Membrane Technology Research Centre (AMTEC), N29A, Universiti Teknologi Malaysia, 81310, Malaysia; School of Chemical and Energy Engineering (SCEE), Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Malaysia
| | - Nurasyikin Misdan
- Faculty of Engineering Technology, Universiti Tun Hussein Onn Malaysia, Hab Pendidikan Tinggi Pagoh, Km 1, Jalan Panchor, Muar, Johor, 84600, Malaysia
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43
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In-situ electric-enhanced membrane distillation for simultaneous flux-increasing and anti-wetting. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119305] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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44
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Chen Y, Lu KJ, Gai W, Chung TS. Nanofiltration-Inspired Janus Membranes with Simultaneous Wetting and Fouling Resistance for Membrane Distillation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:7654-7664. [PMID: 34014649 DOI: 10.1021/acs.est.1c01269] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Membranes with robust antiwetting and antifouling properties are highly desirable for membrane distillation (MD) of wastewater. Herein, we have proposed and demonstrated a highly effective method to mitigate wetting and fouling by designing nanofiltration (NF)-inspired Janus membranes for MD applications. The NF-inspired Janus membrane (referred to as PVDF-P-CQD) consists of a hydrophobic polyvinylidene fluoride (PVDF) membrane and a thin polydopamine/polyethylenimine (PDA/PEI) layer grafted by sodium-functionalized carbon quantum dots (Na+-CQDs) to improve its hydrophilicity. The vapor flux data have confirmed that the hydrophilic layer does not add extra resistance to water vapor transport. The PVDF-P-CQD membrane exhibits excellent resistance toward both surfactant-induced wetting and oil-induced fouling in direct contact MD (DCMD) experiments. The impressive performance arises from the fact that the nanoscale pore sizes of the PDA/PEI layer would reject surfactant molecules by size exclusion and lower the propensity of surfactant-induced wetting, while the high surface hydrophilicity resulted from Na+-CQDs would induce a robust hydration layer to prevent oil from attachment. Therefore, this study may provide useful insights and strategies to design novel membranes for next-generation MD desalination with minimal wetting and fouling propensity.
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Affiliation(s)
- Yuanmiaoliang Chen
- NUS Graduate School for Integrative Science and Engineering, National University of Singapore, Singapore 119077, Singapore
| | - Kang-Jia Lu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore
| | - Wenxiao Gai
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore
| | - Tai-Shung Chung
- NUS Graduate School for Integrative Science and Engineering, National University of Singapore, Singapore 119077, Singapore
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
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45
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Makanjuola O, Anis SF, Hashaikeh R. Enhancing DCMD vapor flux of PVDF-HFP membrane with hydrophilic silica fibers. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118361] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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46
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Jiang Q, Guo W, Liu ZY, Jin Z, Fan JB, Zhao S. Antibiotic Zwitterionic Nanogel Membrane: from Molecular Dynamics Simulation to Structure Manipulation. ACS APPLIED MATERIALS & INTERFACES 2021; 13:18237-18246. [PMID: 33843205 DOI: 10.1021/acsami.1c00378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Membrane separation has been considered as one of the most revolutionary technologies for the removal of oils, dyes, or other pollutants from wastewater. However, most membranes still face great challenges in water permeability, antifouling property, and even antibiotic ability. Possessing a pathogen-repellent surface is of great significance as it can enable membranes to minimize the presence of active viral pathogens. Herein, we demonstrate a distinct design with a molecular dynamics simulation-guided experiment for the surface domination of antibiotic zwitterionic nanogel membranes. The zwitterionic nanoparticle gel (ZNG)/Cu2+/glutaraldehyde (GA) synergy system is first simulated by introducing a ZNG into a preset CuCl2 brine solution and into a GA ethanol solution, in which the nanogel is observed to initially swell and subsequently shrink with the increase of GA concentration, leading to the membrane surface structure transition. Then, the corresponding experiments are performed under strict conditions, and the results suggest the surface structure transition from nanoparticles to network nanoflowers, which are consistent with the simulated results. The obtained network structure membrane with superhydrophilic and underwater superoleophobic abilities can significantly enhance the water permeability as high as almost 40% with its original rejection rate in comparison with unoptimizable ZNG-PVDF (polyvinylidene difluoride) membranes. Moreover, the obtained membrane achieves additional excellent antibiofouling capacity with the antibiotic efficiency exceeding 99.3%, manifesting remarkable potential for disinfection applications. By comparison, the conventional antibiotic methods generally improve the membrane's antibiotic property solely but can hardly improve the other properties of the membrane. That is to say, our simulation combined with the experimental strategy significantly improved the zwitterionic membrane property in this work, which provides a new perspective on the design of high-performance functional materials.
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Affiliation(s)
- Qin Jiang
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Wei Guo
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, People's Republic of China
| | - Zi-Yu Liu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Zhiqiang Jin
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Jun-Bing Fan
- Cancer Research Institute, School of Basic Medical Sciences and General Surgery Center; Department of Hepatobiliary Surgery II, Zhujiang Hospital, Southern Medical University, Guangzhou 510515, People's Republic of China
| | - Sui Zhao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
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47
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Woo YC, Yao M, Shim WG, Kim Y, Tijing LD, Jung B, Kim SH, Shon HK. Co-axially electrospun superhydrophobic nanofiber membranes with 3D-hierarchically structured surface for desalination by long-term membrane distillation. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.119028] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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48
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Janus membranes for membrane distillation: Recent advances and challenges. Adv Colloid Interface Sci 2021; 289:102362. [PMID: 33607551 DOI: 10.1016/j.cis.2021.102362] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 01/12/2021] [Accepted: 01/14/2021] [Indexed: 02/06/2023]
Abstract
Membrane distillation (MD) is a promising hybrid thermal-membrane separation technology that can efficiently produce freshwater from seawater or contaminated wastewater. However, the relatively low flux and the presence of fouling or wetting agents in feed solution negate the applicability of MD for long term operation. In recent years, 'two-faced' membranes or Janus membranes have shown promising potential to decrease wetting and fouling problem of common MD system as well as enhance the flux performance. In this review, a comprehensive study was performed to investigate the various fabrication, modification, and novel design processes to prepare Janus membranes and discuss their performance in desalination and wastewater treatment utilizing MD. The promising potential, challenges and future prospects relating to the design and use of Janus membranes for MD are also tackled in this review.
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49
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Koh E, Lee YT. Preparation of an omniphobic nanofiber membrane by the self-assembly of hydrophobic nanoparticles for membrane distillation. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.118134] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Rondepierre G, De Soete F, Passade-Boupat N, Lequeux F, Talini L, Limat L, Verneuil E. Dramatic Slowing Down of Oil/Water/Silica Contact Line Dynamics Driven by Cationic Surfactant Adsorption on the Solid. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:1662-1673. [PMID: 33502209 DOI: 10.1021/acs.langmuir.0c02746] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
We report on the contact line dynamics of a triple-phase system silica/oil/water. When oil advances onto silica within a water film squeezed between oil and silica, a rim forms in water and recedes at constant velocity. We evidence a sharp (three orders of magnitude) decrease of the contact line velocity upon the addition of cationic surfactants above a threshold concentration, which is slightly smaller than the critical micellar concentration. We show that, with or without surfactant, and within the range of small capillary numbers investigated, the contact line dynamics can be described by a friction term that does not reduce to pure hydrodynamical effects. In addition, we derive a model that successfully accounts for the selected contact line velocity of the rim. We further demonstrate the strong increase of the friction coefficient with surfactant bulk concentration results from the strongly nonlinear adsorption isotherm of surfactants on silica. From the variations of the friction coefficient and spreading parameter with surface concentration, we suggest a picture in which the part of the adsorbed surfactants that are strongly bound to the silica interface is trapped under the oil droplet and is responsible for the large increase in line friction.
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Affiliation(s)
- Gaëlle Rondepierre
- Soft Matter Sciences and Engineering (SIMM), ESPCI Paris, PSL University, Sorbonne Université, CNRS UMR 7615, Paris F-75005, France
- TOTAL SA, Pôle Etudes et Recherche de Lacq, BP 47, Lacq F-64170, France
- Laboratoire Physico-chimie des Interfaces Complexes, ESPCI Paris, 10 rue Vauquelin, Paris F-75231, France
| | - Franz De Soete
- Soft Matter Sciences and Engineering (SIMM), ESPCI Paris, PSL University, Sorbonne Université, CNRS UMR 7615, Paris F-75005, France
- TOTAL SA, Pôle Etudes et Recherche de Lacq, BP 47, Lacq F-64170, France
- Laboratoire Physico-chimie des Interfaces Complexes, ESPCI Paris, 10 rue Vauquelin, Paris F-75231, France
| | - Nicolas Passade-Boupat
- TOTAL SA, Pôle Etudes et Recherche de Lacq, BP 47, Lacq F-64170, France
- Laboratoire Physico-Chimie des Interfaces Complexes, CHEMSTARTUP, RD 817, Lacq F-64170, France
| | - François Lequeux
- Soft Matter Sciences and Engineering (SIMM), ESPCI Paris, PSL University, Sorbonne Université, CNRS UMR 7615, Paris F-75005, France
- Laboratoire Physico-chimie des Interfaces Complexes, ESPCI Paris, 10 rue Vauquelin, Paris F-75231, France
| | - Laurence Talini
- Soft Matter Sciences and Engineering (SIMM), ESPCI Paris, PSL University, Sorbonne Université, CNRS UMR 7615, Paris F-75005, France
- Laboratoire Physico-chimie des Interfaces Complexes, ESPCI Paris, 10 rue Vauquelin, Paris F-75231, France
| | - Laurent Limat
- Laboratoire Matière et Systèmes Complexes, Université de Paris, CNRS UMR 7057, 10 Rue Alice Domon et Léonie Duquet, Paris F-75013, France
| | - Emilie Verneuil
- Soft Matter Sciences and Engineering (SIMM), ESPCI Paris, PSL University, Sorbonne Université, CNRS UMR 7615, Paris F-75005, France
- Laboratoire Physico-chimie des Interfaces Complexes, ESPCI Paris, 10 rue Vauquelin, Paris F-75231, France
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