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Chang H, Zhu Y, Huang L, Yan Z, Qu F, Liang H. Mineral scaling induced membrane wetting in membrane distillation for water treatment: Fundamental mechanism and mitigation strategies. WATER RESEARCH 2023; 247:120807. [PMID: 37924685 DOI: 10.1016/j.watres.2023.120807] [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: 08/24/2023] [Revised: 10/22/2023] [Accepted: 10/28/2023] [Indexed: 11/06/2023]
Abstract
The scaling-induced wetting phenomenon seriously affects the application of membrane distillation (MD) technology in hypersaline wastewater treatment. Unlike the large amount of researches on membrane scaling and membrane wetting, scaling-induced wetting is not sufficiently studied. In this work, the current research evolvement of scaling-induced wetting in MD was systematically summarized. Firstly, the theories involving scaling-induced wetting were discussed, including evaluation of scaling potential of specific solutions, classical and non-classical crystal nucleation and growth theories, observation and evolution of scaling-induced processes. Secondly, the primary pretreatment methods for alleviating scaling-induced wetting were discussed in detail, focusing on adding agents composed of coagulation, precipitation, oxidation, adsorption and scale inhibitors, filtration including granular filtration, membrane filtration and mesh filtration and application of external fields including sound, light, heat, electromagnetism, magnetism and aeration. Then, the roles of operation conditions and cleaning conditions in alleviating scaling-induced wetting were evaluated. The main operation parameters included temperature, flow rate, pressure, ultrasound, vibration and aeration, while different types of cleaning reagents, cleaning frequency and a series of assisted cleaning measures were summarized. Finally, the challenges and future needs in the application of nucleation theory to scaling-induced wetting, the speculation, monitoring and mitigation of scaling-induced wetting were proposed.
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Affiliation(s)
- Haiqing Chang
- MOE Key Laboratory of Deep Earth Science and Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610207, China.
| | - Yingyuan Zhu
- MOE Key Laboratory of Deep Earth Science and Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610207, China
| | - Lin Huang
- MOE Key Laboratory of Deep Earth Science and Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610207, China
| | - Zhongsen Yan
- College of Civil Engineering, Fuzhou University, Fuzhou 350116, China
| | - Fangshu Qu
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Guangzhou University, Guangzhou 510006, China.
| | - Heng Liang
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, Harbin 150090, China
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Shan LL, Tan Z, Chen Y, Wang RS, Zhang M, Pang CL, Cui YH, Liao ZM, Ma HQ, Zhu ZB. Biodegradability enhancement of waste lubricating oil regeneration wastewater using electrocoagulation pretreatment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:106421-106430. [PMID: 37728675 DOI: 10.1007/s11356-023-29841-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 09/07/2023] [Indexed: 09/21/2023]
Abstract
As a sustainable management of fossil fuel resources and ecological environment protection, recycling used lubricating oil has received widespread attention. However, large amounts of waste lubricating-oil regeneration wastewater (WLORW) are inevitably produced in the recycling process, and challenges are faced by traditional biological treatment of WLORW. Thus, this study investigated the effectiveness of electrocoagulation (EC) as pretreatment and its removal mechanism. The electrolysis parameters (current density, initial pH, and inter-electrode distance) were considered, and maximal 60.06% of oil removal was achieved at a current density of 15 mA/cm2, initial pH of 7, and an inter-electrode distance of 2 cm. The dispersed oil of WLORW was relatively easily removed, and most of the oil removal was contributed by emulsified oil within 5-10 μm. Gas chromatography-mass spectrometry (GC-MS) analysis revealed that effective removal of the biorefractory organic compounds could contribute to the improvement of biodegradability of WLORW. Thus, the 5-day biochemical oxygen demand/chemical oxygen demand ratio (BOD5/COD) was significantly enhanced by 4.31 times, which highly benefits future biological treatment. The routes of WLORW removal could be concluded as charge neutralization, adsorption bridging, sweep flocculation, and air flotation. The results demonstrate that EC has potential as an effective pretreatment technology for WLORW biological treatment.
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Affiliation(s)
- Li-Li Shan
- School of Civil Engineering and Architecture, East China Jiao Tong University, Nanchang, 330013, China
- Jiangxi JDL Environmental Protection Co., Ltd, Nanchang, 330199, China
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Zhao Tan
- School of Civil Engineering and Architecture, East China Jiao Tong University, Nanchang, 330013, China
| | - Yu Chen
- School of Civil Engineering and Architecture, East China Jiao Tong University, Nanchang, 330013, China
| | - Ruo-Shan Wang
- School of Civil Engineering and Architecture, East China Jiao Tong University, Nanchang, 330013, China
| | - Meng Zhang
- Jiangxi Academy of Environmental Sciences, Nanchang, 330039, China
| | - Chang-Long Pang
- Jiangxi ZXDH Environmental Protection Industry Tecnology Institute Co., Ltd, Nanchang, 330000, China
| | - Yu-Hong Cui
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Zhi-Min Liao
- Jiangxi JDL Environmental Protection Co., Ltd, Nanchang, 330199, China
| | - Hong-Qiang Ma
- School of Civil Engineering and Architecture, East China Jiao Tong University, Nanchang, 330013, China
| | - Ze-Bing Zhu
- School of Civil Engineering and Architecture, East China Jiao Tong University, Nanchang, 330013, China.
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Zhou S, Huang L, Wang G, Wang W, Zhao R, Sun X, Wang D. A review of the development in shale oil and gas wastewater desalination. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 873:162376. [PMID: 36828060 DOI: 10.1016/j.scitotenv.2023.162376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 11/19/2022] [Accepted: 02/17/2023] [Indexed: 06/18/2023]
Abstract
The development of the shale oil and gas extraction industry has heightened concerns about shale oil and gas wastewater (SOGW). This review comprehensively summarizes, analyzes, and evaluates multiple issues in SOGW desalination. The detailed analysis of SOGW water quality and various disposal strategies with different water quality standards reveals the water quality characteristics and disposal status of SOGW, clarifying the necessity of desalination for the rational management of SOGW. Subsequently, potential and implemented technologies for SOGW desalination are reviewed, mainly including membrane-based, thermal-based, and adsorption-based desalination technologies, as well as bioelectrochemical desalination systems, and the research progress of these technologies in desalinating SOGW are highlighted. In addition, various pretreatment methods for SOGW desalination are comprehensively reviewed, and the synergistic effects on SOGW desalination that can be achieved by combining different desalination technologies are summarized. Renewable energy sources and waste heat are also discussed, which can be used to replace traditional fossil energy to drive SOGW desalination and reduce the negative impact of shale oil and gas exploitation on the environment. Moreover, real project cases for SOGW desalination are presented, and the full-scale or pilot-scale on-site treatment devices for SOGW desalination are summarized. In order to compare different desalination processes clearly, operational parameters and performance data of varying desalination processes, including feed salinity, water flux, salt removal rate, water recovery, energy consumption, and cost, are collected and analyzed, and the applicability of different desalination technologies in desalinating SOGW is qualitatively evaluated. Finally, the recovery of valuable inorganic resources in SOGW is discussed, which is a meaningful research direction for SOGW desalination. At present, the development of SOGW desalination has not reached a satisfactory level, and investing enough energy in SOGW desalination in the future is still necessary to achieve the optimal management of SOGW.
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Affiliation(s)
- Simin Zhou
- School of Environment, Harbin Institute of Technology, 73 Huanghe Road, Harbin 150090, China
| | - Likun Huang
- School of Food Engineering, Harbin University of Commerce, Harbin 150076, China
| | - Guangzhi Wang
- School of Environment, Harbin Institute of Technology, 73 Huanghe Road, Harbin 150090, China.
| | - Wei Wang
- School of Environment, Harbin Institute of Technology, 73 Huanghe Road, Harbin 150090, China
| | - Rui Zhao
- School of Environment, Harbin Institute of Technology, 73 Huanghe Road, Harbin 150090, China
| | - Xiyu Sun
- School of Environment, Harbin Institute of Technology, 73 Huanghe Road, Harbin 150090, China
| | - Dongdong Wang
- School of Environment, Harbin Institute of Technology, 73 Huanghe Road, Harbin 150090, China
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Wae AbdulKadir WAF, Ahmad AL, Ooi BS. Hydrophobic Montmorillonite/PVDF Membrane: Experimental Investigation of Membrane Synthesis toward Wetting Characterization and Performance via DCMD. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2022. [DOI: 10.1007/s13369-022-07446-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Sangeetha V, Kaleekkal NJ, Vigneswaran S. Coaxial Electrospun Nanofibrous Membranes for Enhanced Water Recovery by Direct Contact Membrane Distillation. Polymers (Basel) 2022; 14:polym14245350. [PMID: 36559716 PMCID: PMC9784477 DOI: 10.3390/polym14245350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 11/23/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022] Open
Abstract
Membrane distillation (MD) is an emerging technology for water recovery from hypersaline wastewater. Membrane scaling and wetting are the drawbacks that prevent the widespread implementation of the MD process. In this study, coaxially electrospun polyvinylidene fluoride-co-hexafluoropropylene (PVDF-co-HFP) nanofibrous membranes were fabricated with re-entrant architecture and enhanced hydrophobicity/omniphobicity. The multiscale roughness was constructed by incorporating Al2O3 nanoparticles and 1H, 1H, 2H, 2H Perfluorodecyltriethoxysilane in the sheath solution. High resolution transmission electron microscopy (HR-TEM) could confirm the formation of the core-sheath nanofibrous membranes, which exhibited a water contact angle of ~142.5° and enhanced surface roughness. The membrane displayed a stable vapor flux of 12 L.m−2.h−1 (LMH) for a 7.0 wt.% NaCl feed solution and no loss in permeate quality or quantity. Long-term water recovery from 10.5 wt.% NaCl feed solution was determined to be 8−10 LMH with >99.9% NaCl rejection for up to 5 cycles of operation (60 h). The membranes exhibited excellent resistance to wetting even above the critical micelle concentration (CMC) for surfactants in the order sodium dodecyl sulphate (SDS) (16 mM) > cetyltrimethylammonium bromide (CTAB) (1.5 mM) > Tween 80 (0.10 mM). The presence of salts further deteriorated membrane performance for SDS (12 mM) and Tween-80 (0.05 mM). These coaxial electrospun nanofibrous membranes are robust and can be explored for long-term applications.
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Affiliation(s)
- Vivekanandan Sangeetha
- Membrane Separation Group, Department of Chemical Engineering, National Institute of Technology Calicut, Kozhikode 673601, Kerala, India
| | - Noel Jacob Kaleekkal
- Membrane Separation Group, Department of Chemical Engineering, National Institute of Technology Calicut, Kozhikode 673601, Kerala, India
- Correspondence: (N.J.K.); (S.V.)
| | - Saravanamuthu Vigneswaran
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
- Faculty of Sciences & Technology (RealTek), Norwegian University of Life Sciences, P.O. Box 5003, NO-1432 Ås, Norway
- Correspondence: (N.J.K.); (S.V.)
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