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Zhao Y, Liu C, Deng J, Zhang P, Feng S, Chen Y. Green and Sustainable Forward Osmosis Process for the Concentration of Apple Juice Using Sodium Lactate as Draw Solution. MEMBRANES 2024; 14:106. [PMID: 38786940 PMCID: PMC11122952 DOI: 10.3390/membranes14050106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 04/29/2024] [Accepted: 04/30/2024] [Indexed: 05/25/2024]
Abstract
China is the world's largest producer and exporter of concentrated apple juice (CAJ). However, traditional concentration methods such as vacuum evaporation (VE) and freeze concentration cause the loss of essential nutrients and heat-sensitive components with high energy consumption. A green and effective technique is thus desired for juice concentration to improve product quality and sustainability. In this study, a hybrid forward osmosis-membrane distillation (FO-MD) process was explored for the concentration of apple juice using sodium lactate (L-NaLa) as a renewable draw solute. As a result, commercial apple juice could be concentrated up to 65 °Brix by the FO process with an average flux of 2.5 L·m-2·h-1. Most of the nutritional and volatile compounds were well retained in this process, while a significant deterioration in product quality was observed in products obtained by VE concentration. It was also found that membrane fouling in the FO concentration process was reversible, and a periodical UP water flush could remove most of the contaminants on the membrane surface to achieve a flux restoration of more than 95%. In addition, the L-NaLa draw solution could be regenerated by a vacuum membrane distillation (VMD) process with an average flux of around 7.87 L∙m-2∙h-1 for multiple reuse, which further enhanced the long-term sustainability of the hybrid process.
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Affiliation(s)
- Yuhang Zhao
- School of Environment and Resources, Southwest University of Science and Technology, Mianyang 621010, China
- Low Cost Wastewater Treatment Technology International Science and Technology Cooperation Base of Sichuan Province, Mianyang 621010, China
| | - Chang Liu
- School of Environment and Resources, Southwest University of Science and Technology, Mianyang 621010, China
- Low Cost Wastewater Treatment Technology International Science and Technology Cooperation Base of Sichuan Province, Mianyang 621010, China
| | - Jianju Deng
- School of Environment and Resources, Southwest University of Science and Technology, Mianyang 621010, China
- Low Cost Wastewater Treatment Technology International Science and Technology Cooperation Base of Sichuan Province, Mianyang 621010, China
| | - Panpan Zhang
- School of Environment and Resources, Southwest University of Science and Technology, Mianyang 621010, China
- Low Cost Wastewater Treatment Technology International Science and Technology Cooperation Base of Sichuan Province, Mianyang 621010, China
| | - Shiyuan Feng
- School of Environment and Resources, Southwest University of Science and Technology, Mianyang 621010, China
- Low Cost Wastewater Treatment Technology International Science and Technology Cooperation Base of Sichuan Province, Mianyang 621010, China
| | - Yu Chen
- School of Environment and Resources, Southwest University of Science and Technology, Mianyang 621010, China
- Low Cost Wastewater Treatment Technology International Science and Technology Cooperation Base of Sichuan Province, Mianyang 621010, China
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2
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Tian X, Yue D, Hou T, Xiao F, Wang Z, Cai W. Separation of Chloride and Sulfate Ions from Desulfurization Wastewater Using Monovalent Anions Selective Electrodialysis. MEMBRANES 2024; 14:73. [PMID: 38668101 PMCID: PMC11051948 DOI: 10.3390/membranes14040073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 03/09/2024] [Accepted: 03/20/2024] [Indexed: 04/28/2024]
Abstract
The high concentration of chloride ions in desulphurization wastewater is the primary limiting factor for its reusability. Monovalent anion selective electrodialysis (S-ED) enables the selective removal of chloride ions, thereby facilitating the reuse of desulfurization wastewater. In this study, different concentrations of NaCl and Na2SO4 were used to simulate different softened desulfurization wastewater. The effects of current density and NaCl and Na2SO4 concentration on ion flux, permselectivity (PSO42-Cl-) and specific energy consumption were studied. The results show that Selemion ASA membrane exhibits excellent permselectivity for Cl- and SO42-, with a significantly lower flux observed for SO42- compared to Cl-. Current density exerts a significant influence on ion flux; as the current density increases, the flux of SO42- also increases but at a lower rate than that of Cl-, resulting in an increase in permselectivity. When the current density reaches 25 mA/cm2, the permselectivity reaches a maximum of 50.4. The increase in NaCl concentration leads to a decrease in the SO42- flux; however, the permselectivity is reduced due to the elevated Cl-/SO42- ratio. The SO42- flux increases with the increase in Na2SO4 concentration, while the permselectivity increases with the decrease in Cl-/SO42- ratio.
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Affiliation(s)
- Xufeng Tian
- School of Environment, Tsinghua University, Beijing 100084, China; (X.T.); (D.Y.)
- Horizon (Beijing) Environmental Engineering Co., Ltd., Beijing 101299, China;
| | - Dongbei Yue
- School of Environment, Tsinghua University, Beijing 100084, China; (X.T.); (D.Y.)
| | - Tao Hou
- Horizon (Beijing) Environmental Engineering Co., Ltd., Beijing 101299, China;
| | - Fuyuan Xiao
- School of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing 100083, China; (F.X.); (Z.W.)
| | - Zhiping Wang
- School of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing 100083, China; (F.X.); (Z.W.)
| | - Weibin Cai
- School of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing 100083, China; (F.X.); (Z.W.)
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3
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Liu C, Kong D, Zhao S, Jiang Z, Cheng Z, Li Y. Determination of Cations and Anions in Desulfurization Waste Water of Coal-Fired Power Plant by Ion Chromatography. J Chromatogr Sci 2024; 62:127-131. [PMID: 36988013 DOI: 10.1093/chromsci/bmad023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 10/11/2022] [Accepted: 03/08/2023] [Indexed: 03/30/2023]
Abstract
The reliable and accurate determination of corrosive anions at sub- to low-μg/L levels is a challenging analytical problem. In this manuscript, a simultaneous determination method of cations and anions in power plant water samples was established by large volume injection ion chromatography. The analytical parameters including separation column, the suppressor current and the elute concentration were optimized. Results showed good separation under the optimum conditions, and the calibration curves of all analytes were linear with good coefficient of determination (r2) >0.997, and the mean recoveries for all analytes ranged from 75.62 to 118.58% with RSD of 0.07-4.83%. The established method was successfully applied to determine the cations and anions in realwaste water samples from coal-fired power, and was verified by inductively coupled plasma optical emission spectrometry and electrometric titration. The relative deviation between methods was all below 6.72%, which indicated good accuracy of the established ion chromatography method. The results could also provide reference for the precise and rapid detection of cations and anions in environmental water samples.
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Affiliation(s)
- Congyun Liu
- Analysis and Characterization Center, National Institute of Clean-and-Low-Carbon Energy (NICE), No. 9 Binhe Avenue, Future Science City, Changping District, Beijing 102209, China
| | - Deting Kong
- Analysis and Characterization Center, National Institute of Clean-and-Low-Carbon Energy (NICE), No. 9 Binhe Avenue, Future Science City, Changping District, Beijing 102209, China
| | - Shuai Zhao
- Analysis and Characterization Center, National Institute of Clean-and-Low-Carbon Energy (NICE), No. 9 Binhe Avenue, Future Science City, Changping District, Beijing 102209, China
| | - Zhihui Jiang
- Analysis and Characterization Center, National Institute of Clean-and-Low-Carbon Energy (NICE), No. 9 Binhe Avenue, Future Science City, Changping District, Beijing 102209, China
| | - Zihong Cheng
- Analysis and Characterization Center, National Institute of Clean-and-Low-Carbon Energy (NICE), No. 9 Binhe Avenue, Future Science City, Changping District, Beijing 102209, China
| | - Yonglong Li
- Analysis and Characterization Center, National Institute of Clean-and-Low-Carbon Energy (NICE), No. 9 Binhe Avenue, Future Science City, Changping District, Beijing 102209, China
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Chen S, Habib Z, Wang Z, Zhao P, Song W, Wang X. Integrating anaerobic acidification with two-stage forward osmosis concentration for simultaneously recovering organic matter, nitrogen and phosphorus from municipal wastewater. WATER RESEARCH 2023; 245:120595. [PMID: 37708772 DOI: 10.1016/j.watres.2023.120595] [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: 05/13/2023] [Revised: 08/12/2023] [Accepted: 09/07/2023] [Indexed: 09/16/2023]
Abstract
In order to meet the demand of municipal wastewater for low-carbon treatment and resource recovery, a novel process of anaerobic acidification membrane bioreactor (AAMBR) assisted with a two-stage forward osmosis (FO) (FO-AAMBR-FO) was developed for simultaneously recovering organic matter and nutrients from municipal wastewater. The results indicated that the first FO process concentrated the municipal wastewater to one tenth of the initial volume. The corresponding chemical oxygen demand (COD), ammonia nitrogen (NH4+-N) and total phosphorus (TP) concentration reached up to 2800, 200 and 33 mg/L, respectively. Subsequently, the AAMBR was operated at pH value of 10 for treating the concentration of municipal wastewater, in which the organic matter was successfully converted to acetic acid and propionic acid with a total volatile fatty acids (VFAs) concentration of 1787 mg COD/L and a VFAs production efficiency of 62.36 % during 47 days of stable operation. After that, the NH4+-N and TP concentration in the effluent of the AAMBR were further concentrated to 175 and 36.7 mg/L, respectively, by the second FO process. The struvite was successfully recovered with NH4+-N and TP recovery rate of 94.53 % and 98.59 %, respectively. Correspondingly, the VFAs, NH4+-N and TP concentrations in the residual solution were 2905 mg COD/L, 11.8 and 7.92 mg/L, respectively, which could be used as the raw material for the synthesis of polyhydroxyalkanoate (PHA). Results reported here demonstrated that the FO-AAMBR-FO is a promising wastewater treatment technology for simultaneous recovery of organic matter (in form of VFAs) and nutrients (in form of struvite).
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Affiliation(s)
- Siyi Chen
- Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, China
| | - Zunaira Habib
- Institute of Environmental Sciences and Engineering, School of Civil and Environmental Engineering, National University of Sciences and Technology, Islamabad 44000, Pakistan; Department of Chemistry, Rawalpindi Women University, 6th Road Satellite Town, Rawalpindi 46300, Pakistan
| | - Zhiwei Wang
- School of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Pin Zhao
- Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, China
| | - Weilong Song
- Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, China
| | - Xinhua Wang
- Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, China; Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou 215009, China.
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Hu J, Harandi HB, Chen Y, Zhang L, Yin H, He T. Anisotropic gypsum scaling of corrugated polyvinylidene fluoride hydrophobic membrane in direct contact membrane distillation. WATER RESEARCH 2023; 244:120513. [PMID: 37651864 DOI: 10.1016/j.watres.2023.120513] [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: 04/14/2023] [Revised: 07/11/2023] [Accepted: 08/19/2023] [Indexed: 09/02/2023]
Abstract
Membrane distillation (MD) technology has gained a lot of attention for treatment of geothermal brine, high salinity waste streams. However, mineral scaling remains a major challenge when treating complex high-salt brines. The development of surface-patterned superhydrophobic membranes is one of the core strategies to solve this problem. We prepared flat sheet membranes (F-PVDF) and hydrophobic membranes with micron-scale corrugated pattern (C-PVDF) using a phase separation method. Their scaling behavior was systematically evaluated using calcium sulfate solutions and the impact of the feed flow was innovatively investigated. Although C-PVDF shows higher contact angle and lower sliding angle than F-PVDF, the scaling resistance of C-PVDF in the perpendicular flow direction has worst scaling resistance. Although the nucleation barrier of the corrugated membrane is the same at both parallel and perpendicular flow directions based on the traditional thermodynamic nucleation theory, experimental observations show that the C-PVDF has the best scaling resistance in the parallel flow direction. A 3D computational fluid dynamics (CFD) model was used and the hydrodynamic state of the pattern membranes was assessed as a determinant of the scaling resistance. The corrugated membrane with parallel flow mode (flow direction in parallel to the corrugation ridge) induces higher fluid velocity within the channel, which mitigated the deposition of crystals. While in the perpendicular flow mode (flow direction in perpendicular to the corrugation ridge), the solutions confined in the corrugated grooves due to vortex shielding, which aggravates the scaling. These results shed light on the mechanism of scaling resistance of corrugated membranes from a hydrodynamic perspective and reveal the mechanism of anisotropy exhibited by corrugated membranes in MD.
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Affiliation(s)
- Jiaqi Hu
- Laboratory for Membrane Materials and Separation Technologies, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hesam Bazargan Harandi
- University of Chinese Academy of Sciences, Beijing 100049, China; State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, Hubei 430071, China
| | - Yecang Chen
- James Watt School of Engineering, University of Glasgow, Glasgow, G12 8LT, UK
| | - Liwei Zhang
- University of Chinese Academy of Sciences, Beijing 100049, China; State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, Hubei 430071, China.
| | - Huabing Yin
- James Watt School of Engineering, University of Glasgow, Glasgow, G12 8LT, UK
| | - Tao He
- Laboratory for Membrane Materials and Separation Technologies, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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6
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Malibekova A, Guliants V. Rational design of selective functionalized silica adsorbents for Hg(II) removal from FGD wastewater. A combined experimental and theoretical study. Phys Chem Chem Phys 2023; 25:23286-23295. [PMID: 37609920 DOI: 10.1039/d3cp02694a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
The binding of Hg2+ by mercaptan-functionalized silica possessing different physical characteristics was explored through experimental investigations and theoretical calculations. The impacts of the pore structure of silica adsorbents on functionalization and the kinetics of Hg2+ adsorption were also studied. The mechanism of Hg2+ adsorption was proposed based on the results of experimental and theoretical studies. The DFT calculations suggested a simultaneous monodentate and bidentate Hg2+ complex formation on sulfur-containing surface functional groups that strongly depends on the Hg2+ concentration. Theoretical Hg2+ adsorption isotherms predicted by DFT calculations have shown that even when the adsorbent surface had heterogeneous adsorption sites capable of simultaneous monodentate and bidentate complexation, the adsorption still followed the Langmuir model.
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Affiliation(s)
- Alma Malibekova
- Department of Chemical and Environmental Engineering, University of Cincinnati, Cincinnati, OH 45221, USA.
| | - Vadim Guliants
- Department of Chemical and Environmental Engineering, University of Cincinnati, Cincinnati, OH 45221, USA.
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Boubakri A, Elgharbi S, Dhaouadi I, Mansour D, Al-Tahar Bouguecha S. Optimization and prediction of lead removal from aqueous solution using FO-MD hybrid process: Statistical and artificial intelligence analysis. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 337:117731. [PMID: 36933539 DOI: 10.1016/j.jenvman.2023.117731] [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: 02/09/2023] [Revised: 03/03/2023] [Accepted: 03/10/2023] [Indexed: 06/18/2023]
Abstract
Heavy metals (HMs) has become one of the most serious pollutants that are harmful to the environment and ecology. This paper focused on the removal of lead contaminant from wastewater by forward osmosis-membrane distillation (FO-MD) hybrid process using seawater as draw solution. Modeling, optimization, and prediction of FO performance are developed using complementary approach based on response surface methodology (RSM) and an artificial neural network (ANN). FO process optimization using RSM revealed that under initial lead concentration of 60 mg/L, feed velocity of 11.57 cm/s and draw velocity of 7.66 cm/s, FO process achieved highest water flux of 6.75 LMH, lowest reverse salt flux of 2.78 gMH and highest lead removal efficiency of 87.07%. Fitness of all models was evaluated based on determination coefficient (R2) and mean square error (MSE). Results showed highest R2 value up to 0.9906 and lowest RMSE value up to 0.0102. ANN modeling generates the highest prediction accuracy for water flux and reverse salt flux, while RSM produces the highest prediction accuracy for lead removal efficiency. Subsequently, FO optimal conditions are applied on FO-MD hybrid process using seawater as draw solution and evaluate their performance to simultaneously remove lead contaminant and desalination of seawater. Results displays that FO-MD process shows a highly efficient solution to produce fresh water with almost free heavy metals and very low conductivity.
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Affiliation(s)
- Ali Boubakri
- Laboratory Water, Membranes and Environmental Biotechnology, Center of Water Research and Technologies (CERTE), PB 273, 8020, Soliman, Tunisia.
| | - Sarra Elgharbi
- Chemistry Department, College of Sciences, University of Ha'il, Hail, Saudi Arabia
| | - Imen Dhaouadi
- Laboratory Desalination and Nature Water Valorization, Center of Water Research and Technologies (CERTE), B.P. 273, Soliman, 8020, Tunisia
| | - Dorsaf Mansour
- Chemistry Department, College of Sciences, University of Ha'il, Hail, Saudi Arabia
| | - Salah Al-Tahar Bouguecha
- Department of Mechanical Engineering, Faculty of Engineering, King Abdul-Aziz University, P.O. Box 80204, Jeddah, 21589, Saudi Arabia
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Geng W, Zou J, Niu Q, Lin Y, Liu H, Jing Y, Yang C. Recovery of magnesium from flue gas desulfurization wastewater using thermomorphic hydrophilicity amines. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
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9
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Hu X, Ji Z, Gu S, Ma Z, Yan Z, Liang Y, Chang H, Liang H. Mapping the research on desulfurization wastewater: Insights from a bibliometric review (1991-2021). CHEMOSPHERE 2023; 314:137678. [PMID: 36586446 DOI: 10.1016/j.chemosphere.2022.137678] [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: 10/18/2022] [Revised: 12/05/2022] [Accepted: 12/26/2022] [Indexed: 06/17/2023]
Abstract
Desulfurization wastewater in coal-fired power plants (CFPPs) is a great environmental challenge. This study aimed at the current status and future research trends of desulfurization wastewater by bibliometric analysis. The desulfurization wastewater featured with high sulfate (8000 mg/L), chlorite (8505 mg/L), magnesium (2882 mg/L) and calcium (969 mg/L) but low sodium (801.82 mg/L), and the concentrations of the main contaminants were critically summarized. There was an increasing trend in the annual publications of desulfurization wastewater in the period from 1991 to 2021, with an average growth rate of 15%. Water Science and Technology, Desalination and Water Treatment, Energy & Fuels, Chemosphere, and Journal of Hazardous Materials are the top 5 journals in this field. China was the most productive country (58.3% of global output) and the core country in the international cooperation network. Wordcloud analysis and keyword topic trend demonstrated that removal/treatment of pollutants dominated the global research in the field of desulfurization wastewater. The primary technologies for desulfurization wastewater treatment were systematically evaluated. The physicochemical treatment technologies occupied half of the total treatment methods, while membrane-based integrated processes showed potential applications for beneficial reuse. The challenges and outlook on desulfurization wastewater treatment for achieving zero liquid discharge are summarized.
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Affiliation(s)
- Xueqi Hu
- State Grid Sichuan Comprehensive Energy Service Co., Ltd., Power Engineering Br., Chengdu, 610072, China
| | - Zhengxuan Ji
- School of Architecture and Civil Engineering, Xi'an University of Science and Technology, Xi'an, 710054, China
| | - Suhua Gu
- MOE Key Laboratory of Deep Earth Science and Engineering, College of Architecture and Environment, Sichuan University, Chengdu, 610207, China
| | - Zeren Ma
- 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
| | - Ying Liang
- MOE Key Laboratory of Deep Earth Science and Engineering, College of Architecture and Environment, Sichuan University, Chengdu, 610207, China
| | - Haiqing Chang
- MOE Key Laboratory of Deep Earth Science and Engineering, College of Architecture and Environment, Sichuan University, Chengdu, 610207, China.
| | - Heng Liang
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, Harbin, 150090, China
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Zhou X, Tang W, He M, Xiao X, Wang T, Cheng S, Zhang L. Combined removal of SO 3 and HCl by modified Ca(OH) 2 from coal-fired flue gas. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 857:159466. [PMID: 36257446 DOI: 10.1016/j.scitotenv.2022.159466] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 10/01/2022] [Accepted: 10/12/2022] [Indexed: 06/16/2023]
Abstract
As treatments for mainstream pollutants in coal-fired power plants have been established, the control of non-conventional pollutants, such as SO3 and HCl, is gradually gaining attention. In this study, combined SO3 and HCl removal is proposed based on SO3 removal by absorber injection. However, it is challenging to selectively absorb SO3 and HCl from SO2-rich atmospheres. Therefore, Ca(OH)2 was modified via ball milling and doping with CuO for the combined removal of SO3 and HCl. The results showed that ball milling reduced the particle and grain sizes of Ca(OH)2, which increased the active sites of Ca(OH)2 and prolonged reaction time. After modification by ball milling, SO3 absorption per mg of Ca(OH)2 increased by 40 %. However, HCl removal efficiency was difficult to improve by modifying Ca(OH)2 using only ball milling under SO3 and SO2 atmospheres. Therefore, the dechlorination capacity of Ca(OH)2 was improved by adding ions during the ball milling process. Doping of Ca(OH)2 with Cu2+ changed its crystal structure, weakened the diffusion resistance of HCl, and improved Ca(OH)2 utilization. Additionally, it increased the energy of Ca(OH)2 to adsorb HCl.
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Affiliation(s)
- Xiaohan Zhou
- National Engineering Laboratory of Coal-fired Pollutants Emission Reduction, School of Energy and Power Engineering, Shandong University, Jinan 250061, China
| | - Wenjing Tang
- National Engineering Laboratory of Coal-fired Pollutants Emission Reduction, School of Energy and Power Engineering, Shandong University, Jinan 250061, China
| | - Minqiang He
- Xi'an Thermal Power Research Institute Co., Ltd., China
| | - Xia Xiao
- National Engineering Laboratory of Coal-fired Pollutants Emission Reduction, School of Energy and Power Engineering, Shandong University, Jinan 250061, China
| | - Tao Wang
- National Engineering Laboratory of Coal-fired Pollutants Emission Reduction, School of Energy and Power Engineering, Shandong University, Jinan 250061, China
| | - Shanjie Cheng
- National Engineering Laboratory of Coal-fired Pollutants Emission Reduction, School of Energy and Power Engineering, Shandong University, Jinan 250061, China
| | - Liqiang Zhang
- National Engineering Laboratory of Coal-fired Pollutants Emission Reduction, School of Energy and Power Engineering, Shandong University, Jinan 250061, China.
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Zhang M, Xia Q, Zhao X, Guo J, Zeng L, Zhou Z. Concentration effects of calcium ion on polyacrylamide fouling of ion-exchange membrane in electrodialysis treatment of flue gas desulfurization wastewater. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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12
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Sun Z, Zhao N, Feng Y, Liu F, Cai C, Che G, Zhang Y, Wu H, Yang L. Experimental study on the treatment of desulfurization wastewater from coal-fired power plant by spray evaporation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:90791-90802. [PMID: 35871714 DOI: 10.1007/s11356-022-21859-7] [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: 01/26/2022] [Accepted: 07/01/2022] [Indexed: 06/15/2023]
Abstract
In this study, a pilot-scale evaporation tower system was built to treat the desulfurization wastewater by spray evaporation. The distribution characteristics of Cl- in the wastewater evaporation process were investigated. Besides, the morphology and physicochemical property of solid evaporation products from desulfurization wastewater were analyzed. In addition, the emission characteristics of fine particulates were evaluated. The results indicated that the increase of salt content in desulfurization wastewater increased the mass concentrations of Cl- in three phases, but the proportions of it remained almost unchanged, which were about 10%, 55%, and 35% in the gas phase, outlet solid phase, and bottom solid phase respectively. The increase of flue gas temperature can improve the content of Cl- in the gas phase, while the increase of wastewater pH inhibited the formation of gaseous HCl. The solid evaporation products from desulfurization wastewater had a prismatic crystal structure, which mainly included the sulfate and chloride salts, and the main elements including O, Na, Mg, S, Cl, K, and Ca. Besides, the peak values of particle size distribution in the bottom solid phase and outlet solid phase were 7.67 and 0.32 μm, respectively. For the particulate matters in flue gas, the spray evaporation of desulfurization wastewater can reduce the particle concentration, promote particle agglomeration, reduce the number concentration of fine particles, and improve the removal effect of PM10. When the inlet particle concentration was 7.62 g/m3, it can reduce the particle concentration at the tower outlet to 4.59 g/m3 and reduce the number and mass concentrations of PM10 after ESP by about 43.8% and 36.8%.
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Affiliation(s)
- Zongkang Sun
- Guangdong Electric Power Development Co., Ltd., Guangzhou, China
| | - Ning Zhao
- Electric Power Research Institute of Guangdong Power Grid Corporation, Guangzhou, 510080, China
| | - Yongxin Feng
- Electric Power Research Institute of Guangdong Power Grid Corporation, Guangzhou, 510080, China
| | - Fengjun Liu
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, 210096, China
| | - Chenjian Cai
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, 210096, China
| | - Guangmin Che
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, 210096, China
| | - Yaping Zhang
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, 210096, China
| | - Hao Wu
- School of Energy & Mechanical Engineering, Nanjing Normal University, Nanjing, China
| | - Linjun Yang
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, 210096, China.
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An W, Zhao J, Lu J, Han Y, Li D. Zero-liquid discharge technologies for desulfurization wastewater: A review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 321:115953. [PMID: 35987059 DOI: 10.1016/j.jenvman.2022.115953] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 07/28/2022] [Accepted: 08/03/2022] [Indexed: 06/15/2023]
Abstract
Zero-Liquid Discharge (ZLD) has received a lot of attention due to water scarcity and pollution. This article reviews the treatment of desulfurization wastewater in pretreatment, concentration and solidification with the trend of zero-liquid discharge in China. We summarize the advantages, disadvantages, performance, benefits and other characteristics of different ZLD technologies. Membrane-based technology is an effective means of recycling wastewater in ZLD systems. Therefore, we focus on the application of bipolar membrane electrodialysis (BMED) in desulfurization wastewater and high-salt wastewater treatment, discussing its limitations and solutions. In addition, several Chinese ZLD cases and economic analysis are introduced. It is believed that ZLD will become a new trend in desulfurization wastewater treatment in the future. Therefore, exploring new materials and technologies with low cost and high efficiency is the focus of future work.
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Affiliation(s)
- Wenhao An
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing University of Information Science & Technology, Nanjing, 210044, Jiangsu, China
| | - Jun Zhao
- CHN Energy Lucency Enviro-Tech CO., LTD. NanJing Branch, Nanjing, 210044, Jiangsu, China
| | - Jiangang Lu
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing University of Information Science & Technology, Nanjing, 210044, Jiangsu, China.
| | - Yi Han
- CHN Energy Lucency Enviro-Tech CO., LTD. NanJing Branch, Nanjing, 210044, Jiangsu, China
| | - Dong Li
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing University of Information Science & Technology, Nanjing, 210044, Jiangsu, China
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14
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He L, Xia Y, Li C, Jiang A, Zhao Y, Xie F. Simulation and Operational Optimization of RO Based Desalination for Coal-Fired Power Plants’ Wastewater. MEMBRANES 2022; 12:membranes12050478. [PMID: 35629804 PMCID: PMC9147931 DOI: 10.3390/membranes12050478] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 04/23/2022] [Accepted: 04/25/2022] [Indexed: 12/10/2022]
Abstract
Focusing on the problems of opaqueness and high energy consumption in coal-fired power plant wastewater recycling processes, this paper studies the simulation and operational optimization of coal-fired power plant wastewater treatment by taking a coal-fired power plant system in Inner Mongolia as an example. Firstly, based on the solution–diffusion theory, pressure drop, and osmotic concentration polarization, a mechanistic model equation for coal-fired power plant wastewater treatment is developed. Secondly, the equation fitness and equation parameters are calibrated to obtain an accurate model. Thirdly, the system is simulated and analyzed so as to obtain the influence and change trajectories of different feed flowrates, temperatures, pressures, and concentrations on various aspects of the system’s performance, such as water recovery rate, salt rejection rate, and so on. Finally, in order to reduce the operating cost of the system, an optimization analysis is carried out, with the lowest specific energy consumption and average daily operating cost as optimization goals, and the performance changes of the system before and after optimization under three different working conditions are compared. The results show that adopting the given optimal strategy can significantly reduce the system’s operational cost. This research is helpful for the digitization and low-carbon operation of coal-fired power plant wastewater treatment systems.
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Affiliation(s)
- Lu He
- School of Automation, Hangzhou Dianzi University, Hangzhou 310018, China; (L.H.); (Y.X.); (C.L.); (F.X.)
| | - Yudong Xia
- School of Automation, Hangzhou Dianzi University, Hangzhou 310018, China; (L.H.); (Y.X.); (C.L.); (F.X.)
| | - Chuang Li
- School of Automation, Hangzhou Dianzi University, Hangzhou 310018, China; (L.H.); (Y.X.); (C.L.); (F.X.)
| | - Aipeng Jiang
- School of Automation, Hangzhou Dianzi University, Hangzhou 310018, China; (L.H.); (Y.X.); (C.L.); (F.X.)
- Correspondence: ; Tel.: +86-0571-8691-9133
| | - Yan Zhao
- Chn Energy Lucency Enviro-Tech Co., Ltd., Beijing 100039, China;
| | - Fengling Xie
- School of Automation, Hangzhou Dianzi University, Hangzhou 310018, China; (L.H.); (Y.X.); (C.L.); (F.X.)
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15
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Ibrar I, Yadav S, Naji O, Alanezi AA, Ghaffour N, Déon S, Subbiah S, Altaee A. Development in forward Osmosis-Membrane distillation hybrid system for wastewater treatment. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120498] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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16
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Suwaileh W, Zargar M, Abdala A, Siddiqui F, Khiadani M, Abdel-Wahab A. Concentration polarization control in stand-alone and hybrid forward osmosis systems: Recent technological advancements and future directions. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2021.12.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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17
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Economic Analysis of Atomization Drying of Concentrated Solution Based on Zero Discharge of Desulphurization Wastewater. WATER 2022. [DOI: 10.3390/w14020148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
With the improvement of environmental protection requirements, more and more attention has been given to desulphurization wastewater with zero discharge in coal power plants. Atomization drying is part of the main zero discharge technologies at present. Economic analysis of the atomization drying of desulphurization wastewater is beneficial to the formulation of an appropriate operation scheme and to the reduction of operation costs. The economic analysis and sensitivity analysis of different operating conditions such as unit load, the handling capacity of concentrates, and the temperature of the extracted flue gas in the atomization drying process of concentrated desulfurized wastewater were carried out in this paper. The main cost of the drying process came from the influence of flue gas extraction on the overall heat transfer in the boiler, resulting in the decrease in power generation revenue, which can reach more than 80%. The operating cost of auxiliary machinery was relatively low. The cost of treatment for per ton of concentrates increased first and then decreased with the increase in temperature of the extracted flue gas, and it decreased with the increase in the handling capacity of the concentrates. The effect of a unit load on the treatment cost was also related to the temperature of the extracted flue gas, and the optimal flue gas temperature increase to higher temperatures as the unit load decreased. The minimum treatment costs per ton of concentrate ranged from CNY 143.54/t to CNY 158.77/t under different unit loads. Sensitivity analysis showed that the temperature of the extracted flue gas had the greatest impact on treatment cost, and its sensitivity coefficient was 0.0834. The ways in which to improve economic benefits were discussed.
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18
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Liu C, Ma L, Xu Y, Wang F, Tan Y, Huang L, Ma S. Experimental and theoretical study of a new CDI device for the treatment of desulfurization wastewater. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:518-530. [PMID: 34331231 DOI: 10.1007/s11356-021-15651-2] [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: 12/16/2020] [Accepted: 07/21/2021] [Indexed: 06/13/2023]
Abstract
According to the characteristics of desulfurization wastewater, A new capacitive deionization (CDI) device was designed to study the desalination characteristics of desulfurization wastewater in this paper. The experiments investigated the desalination efficiency under different conditions which find that the best desalination efficiency is achieved at a voltage of 1.2V, pH=11 and 50°C. Besides, ion adsorption is more favorable under acidic and alkaline conditions. The anion and cation removal performance experiments showed that the order of cation removal is Mg2+>Na+>Ca2+>K+ and the order of anion removal is Cl->CO32->NO3->SO42->HCO3-. The mechanism of CDI was studied and analyzed by the isothermal adsorption model and COMSOL simulation software. It was found that the Freundlich model and Redlich-Peterson model have a good fit with the experimental results. The experiments show that the CDI device has excellent stability. CDI device was used to treat actual desulfurization wastewater. Furthermore, the study provides theoretical support for the industrial application of CDI for desulfurization wastewater treatment in the future. Graphical abstract.
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Affiliation(s)
- Chang Liu
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding, 071003, People's Republic of China
- MOE Key Laboratory of Resources and Environmental Systems Optimization, Beijing, 102206, China
| | - Lan Ma
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding, 071003, People's Republic of China
- MOE Key Laboratory of Resources and Environmental Systems Optimization, Beijing, 102206, China
| | - Yongyi Xu
- China Power Hua Chuang Electricity Technology Research Company Ltd., Beijing, China
| | - Feng Wang
- China Power Hua Chuang Electricity Technology Research Company Ltd., Beijing, China
| | - Yu Tan
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding, 071003, People's Republic of China
| | - Luyue Huang
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding, 071003, People's Republic of China
| | - Shuangchen Ma
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding, 071003, People's Republic of China.
- MOE Key Laboratory of Resources and Environmental Systems Optimization, Beijing, 102206, China.
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19
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Direct contact membrane distillation with softening Pre-treatment for effective reclaiming flue gas desulfurization wastewater. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119637] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Ma S, Liu C, Xu Y, Tan Y, Yang D, Wang F, Ma L. Tio 2 and carbon nanotubes composites modify capacitive deionization anodes to improve the dechlorination efficiency in desulfurization wastewater. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2021; 84:1228-1244. [PMID: 34534119 DOI: 10.2166/wst.2021.315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
A new capacitive deionization (CDI) technology was used to remove Cl- from desulfurization wastewater. TiO2 and carbon nanotubes (CNTs) were combined with N-methyl pyrrolidone (NMP) to form composites by a solvothermal method in which it is coated onto the CDI anode to improve dechlorination efficiency (DE). The morphology, surface area, wettability, crystal structure and chemical composition of the TiO2/CNTs were characterized. They showed good hydrophilicity (contact angle: 85.9°), high specific surface area (96.68 m²/g) and high specific capacitance (87.6 F/g). The experimental results illustrated that the best DE was achieved by the composites (60%T/C) under 1.2 V with the maximum electrosorption capacity toward 6.5 mg/g, and the TiO2/CNTs composites had excellent stability. Adsorption kinetics analysis was explored and analyzed. Furthermore, TiO2/CNTs composites exhibited excellent DE in actual desulfurization wastewater. The catalysis and adsorption mechanisms of the TiO2/CNTs anode were discussed in detail. This study provides a new direction for the application of TiO2/CNTs composites as adsorption materials of CDI in the Cl- of desulfurization wastewater.
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Affiliation(s)
- Shuangchen Ma
- Hebei Key Laboratory of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental, Science and Engineering, North China Electric Power University, Baoding 071003, China E-mail: ; MOE Key Laboratory of Resources and Environmental Systems Optimization, Beijing 102206, China
| | - Chang Liu
- Hebei Key Laboratory of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental, Science and Engineering, North China Electric Power University, Baoding 071003, China E-mail: ; MOE Key Laboratory of Resources and Environmental Systems Optimization, Beijing 102206, China
| | - Yongyi Xu
- China Power Hua Chuang Electricity Technology Research Company Ltd, Suzhou 215000, China
| | - Yu Tan
- Hebei Key Laboratory of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental, Science and Engineering, North China Electric Power University, Baoding 071003, China E-mail:
| | - Dingchang Yang
- Hebei Key Laboratory of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental, Science and Engineering, North China Electric Power University, Baoding 071003, China E-mail:
| | - Feng Wang
- China Power Hua Chuang Electricity Technology Research Company Ltd, Suzhou 215000, China
| | - Lan Ma
- Hebei Key Laboratory of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental, Science and Engineering, North China Electric Power University, Baoding 071003, China E-mail: ; MOE Key Laboratory of Resources and Environmental Systems Optimization, Beijing 102206, China
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21
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Mao G, Hu H, Liu X, Crittenden J, Huang N. A bibliometric analysis of industrial wastewater treatments from 1998 to 2019. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 275:115785. [PMID: 33607600 DOI: 10.1016/j.envpol.2020.115785] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 09/30/2020] [Accepted: 10/05/2020] [Indexed: 06/12/2023]
Abstract
For the foreseeable future, industrial water demand will grow much faster than agriculture. The demand together with the urgency of wastewater treatment, will pose big challenges for most developing countries. We applied the bibliometric analysis combined with social network analysis and S-curve technique to quantitatively analyze 9413 publications related to industrial wastewater treatment in the Scientific Citation Index (SCI) and Social Sciences Citation Index (SSCI) databases from 1998 to 2019. The results showed that: (1) Publications on industrial wastewater treatment have increased from 120 in 1998 to 895 in 2019 with a steady annual increment rate, and researchers have focused more on the application and optimization of existing technologies. (2) China had the highest number of publications (n = 1651, 19.66% of global output) and was a core country in the international cooperation network, whereas the United States and European countries produced higher quality papers. (3) By analyzing the co-occurrence and clusters of keywords and comparing three wastewater treatment categories (physical, chemical, biological), adsorption (n = 1277), oxidation (n = 1085) and activated sludge process (n = 1288) were the top three techniques. Researchers have shifted their focus to treatment technologies for specific wastewater type, such as textile wastewater, pulp and paper wastewater, and pharmaceutical wastewater. The S-curve from articles indicates that physical and chemical treatment technologies are attached with great potential in the near future, especially adsorption and advanced oxidation, while the biological treatment technologies are approaching to the saturation stage. Different pattern is observed for the S-curve derived from patents, which stressed the limited achievement until now and further exploration in the field application for the three treatment categories. Our analysis provides information of technology development landscape and future opportunities, which is useful for decision makers and researchers who are interested in this area.
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Affiliation(s)
- Guozhu Mao
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300350, China; Center for Green Buildings and Sponge Cities, Georgia Tech Tianjin University Shenzhen Institute, Shenzhen, Guangdong, 518071, China
| | - Haoqiong Hu
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300350, China; Center for Green Buildings and Sponge Cities, Georgia Tech Tianjin University Shenzhen Institute, Shenzhen, Guangdong, 518071, China
| | - Xi Liu
- Institute of Blue and Green Development, Shandong University, Weihai, 264209, China; College of Management and Economics, Tianjin University, Tianjin, 300072, China.
| | - John Crittenden
- Brook Byers Institute for Sustainable Systems, School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA, USA
| | - Ning Huang
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300350, China; Center for Green Buildings and Sponge Cities, Georgia Tech Tianjin University Shenzhen Institute, Shenzhen, Guangdong, 518071, China
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22
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Impact of osmotic and thermal isolation barrier on concentration and temperature polarization and energy efficiency in a novel FO-MD integrated module. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118811] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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23
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Zeweldi HG, Bendoy AP, Park MJ, Shon HK, Johnson EM, Kim HS, Kim H, Chung WJ, Nisola GM. Forward osmosis with direct contact membrane distillation using tetrabutylphosphonium p-toluenesulfonate as an effective and safe thermo-recyclable osmotic agent for seawater desalination. CHEMOSPHERE 2021; 263:128070. [PMID: 33297074 DOI: 10.1016/j.chemosphere.2020.128070] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 08/14/2020] [Accepted: 08/18/2020] [Indexed: 06/12/2023]
Abstract
A phosphonium-based ionic liquid (IL) with lower critical solution temperature (LCST) property was assessed as a reusable draw solution (DS) for forward osmosis (FO). Tetrabutylphosphonium p-toluenesulfonate ([P4444]TsO) was successfully synthesized by neutralization reaction. Characterization results reveal its ability to generate sufficient osmotic pressure (14-68 bars for 0.5-2 M DS) to create a gradient across the FO membrane. Its thermal, physico-chemical and other colligative properties are favorable for its application as an osmotic agent. The LCST behavior of [P4444]TsO was found reversible and its phase separation from water can be done above its cloud point temperature Tc ∼57 °C. In vitro cytotoxicity tests from LDH and MTT assay reveal that it can be safely used as DS at an effective concentration EC30 ∼57 mg L-1 as its non-toxic level. Results from FO operations demonstrate that 2 M [P4444]TsO DS can effectively treat saline feed like seawater (0.6 M NaCl) with reasonable Jv = 1.35 ± 0.15 L m-2h-1, low Js = 0.0038 ± 0.00049 mol m-2h-1, and considerably low specific solute flux (Js/Jv ∼ 0.0028 mol L-1). After FO, ∼98% of [P4444]TsO was precipitated by heating the DS at 60 °C and conveniently reused with consistent FO performance. Direct contact membrane distillation (DCMD) was found effective in removing the residual 2% [P4444]TsO in the DS supernatant to finally produce high-quality effluent with concentrations way below the EC30 limit. Cost estimates for the entire process reveal the potential of FO combined with thermo-cyclic [P4444]TsO regeneration with DCMD for desalination application.
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Affiliation(s)
- Hana G Zeweldi
- Environmental Waste Recycle Institute (EWRI), Department of Energy Science and Technology (DEST), Myongji University, Myongji-ro 116, Nam-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 17058, Republic of Korea
| | - Anelyn P Bendoy
- Environmental Waste Recycle Institute (EWRI), Department of Energy Science and Technology (DEST), Myongji University, Myongji-ro 116, Nam-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 17058, Republic of Korea
| | - Myoung Jun Park
- Center for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney (UTS), Sydney, MSW, 2007, Australia
| | - Ho Kyong Shon
- Center for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney (UTS), Sydney, MSW, 2007, Australia
| | - Eldin M Johnson
- Center for Nutraceutical and Pharmaceutical Materials, Myongji University, Yongin, Gyeonggi-do, 17058, South Korea; Department of Life Science, Food Microbiology and Bioprocess Laboratory, National Institute of Technology, Rourkela, India
| | - Han-Seung Kim
- Department of Environmental Engineering and Energy, Myongji University, Myongji-ro 116, Cheoin-gu, Yongin-si, Gyeonggi-do, 17058, Republic of Korea
| | - Hern Kim
- Environmental Waste Recycle Institute (EWRI), Department of Energy Science and Technology (DEST), Myongji University, Myongji-ro 116, Nam-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 17058, Republic of Korea
| | - Wook-Jin Chung
- Environmental Waste Recycle Institute (EWRI), Department of Energy Science and Technology (DEST), Myongji University, Myongji-ro 116, Nam-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 17058, Republic of Korea.
| | - Grace M Nisola
- Environmental Waste Recycle Institute (EWRI), Department of Energy Science and Technology (DEST), Myongji University, Myongji-ro 116, Nam-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 17058, Republic of Korea.
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24
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Ma C, Li Q, Dai C, Wang L, Zhao B, Zhang Z, Xue S, Tian W. Pilot-scale study of forward osmosis for treating desulfurization wastewater. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2020; 82:2857-2863. [PMID: 33341776 DOI: 10.2166/wst.2020.533] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Forward osmosis (FO) treatment of desulfurization wastewater shows great potential in laboratory scale tests. To explore the adaptability of the forward osmosis system in the practical treatment of desulfurization wastewater, we carried out a pilot test on desulfurization wastewater treated by the traditional method under the conditions of adding soda ash (SA) and adding FO scale inhibitor (FOSI). The results showed that the FO system could concentrate desulfurization wastewater with an average TDS of 15,816-32,820 mg/L in the influent water to an average TDS of more than 120,000 mg/L, which was concentrated 3.8-7.8 times. The removal rates of Ca2+, Mg2+ and Cl- were more than 99% and the system could operate stably for a long time. Under the condition of adding SA and FOSI, the system recovery rate was 85.38% and 73.02%, respectively. The operating cost was 25 RMB/ton and 21.77 RMB/ton, respectively. The results showed that the application of forward osmosis in desulfurization wastewater treatment was technically feasible and economically effective.
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Affiliation(s)
- Cong Ma
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Environmental Science and Engineering, Tiangong University, Tianjin 300387, China E-mail: ; Tianjin Haiyuanhui Technology Co., Ltd, Tianjin 300457, China
| | - Qianqian Li
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Environmental Science and Engineering, Tiangong University, Tianjin 300387, China E-mail:
| | - Chang Dai
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Environmental Science and Engineering, Tiangong University, Tianjin 300387, China E-mail:
| | - Liang Wang
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Environmental Science and Engineering, Tiangong University, Tianjin 300387, China E-mail:
| | - Bin Zhao
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Environmental Science and Engineering, Tiangong University, Tianjin 300387, China E-mail:
| | - Zhaohui Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Environmental Science and Engineering, Tiangong University, Tianjin 300387, China E-mail:
| | - Siguo Xue
- Fluid Technology Solutions (FTS), Inc., Beijing Office, Beijing 101101, China
| | - Wende Tian
- Shenzhen Demark Environmental Technology Co., Ltd, Shenzhen 518000, China
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25
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Xin Y, Zhou Z, Ming Q, Sun D, Han J, Ye X, Dai S, Jiang LM, Zhao X, An Y. A two-stage desalination process for zero liquid discharge of flue gas desulfurization wastewater by chloride precipitation. JOURNAL OF HAZARDOUS MATERIALS 2020; 397:122744. [PMID: 32361139 DOI: 10.1016/j.jhazmat.2020.122744] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 03/23/2020] [Accepted: 04/13/2020] [Indexed: 06/11/2023]
Abstract
A two-stage desalination process was developed to achieve zero liquid discharge (ZLD) of flue gas desulfurization (FGD) wastewater by precipitating chloride as Friedel's salt. Influential factors for Friedel's salt precipitation, including dosage, reaction time, concentration of sulfate, were investigate by batch tests. Batch results showed that at calcium to aluminum molar ratio of 3.0, the optimal chloride removal and the highest crystallinity of Friedel's salt were obtained. Sulfate impeded Friedel's salt precipitation by competitive inhibition mechanism, and thus calcium sulfate removal was designed in advance of chloride removal. Batch results and long-term results of bench-scale experiments showed that magnesium and part of sulfate were effectively removed by lime addition in Stage I of the proposed process, and then the remaining sulfate and 48.1 % of chloride were precipitated as ettringite and Friedel's salt in Stage II. The effluent of the two-stage process was alkaline with low turbidity, and had considerable desulfurization capacity. Techno-economic evaluation showed that the two-stage process is technically feasible, economically viable and environmentally friendly technology for ZLD of FGD wastewater.
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Affiliation(s)
- Yi Xin
- Shanghai Engineering Research Center of Energy - Saving in Heat Exchange Systems, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Zhen Zhou
- Shanghai Engineering Research Center of Energy - Saving in Heat Exchange Systems, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China.
| | - Qiang Ming
- Shanghai Engineering Research Center of Energy - Saving in Heat Exchange Systems, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Dongqi Sun
- Shanghai Engineering Research Center of Energy - Saving in Heat Exchange Systems, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Jun Han
- Wujing Thermal Power Plant of Shanghai Electric Power Co., Ltd., Shanghai 200241, China
| | - Xiaofang Ye
- Shanghai Engineering Research Center of Energy - Saving in Heat Exchange Systems, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Shifeng Dai
- Wujing Thermal Power Plant of Shanghai Electric Power Co., Ltd., Shanghai 200241, China
| | - Lu-Man Jiang
- Shanghai Engineering Research Center of Energy - Saving in Heat Exchange Systems, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Xiaodan Zhao
- Shanghai Engineering Research Center of Energy - Saving in Heat Exchange Systems, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Ying An
- Shanghai Engineering Research Center of Energy - Saving in Heat Exchange Systems, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
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26
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Mat Nawi NI, Bilad MR, Anath G, Nordin NAH, Kurnia JC, Wibisono Y, Arahman N. The Water Flux Dynamic in a Hybrid Forward Osmosis-Membrane Distillation for Produced Water Treatment. MEMBRANES 2020; 10:E225. [PMID: 32916834 PMCID: PMC7558008 DOI: 10.3390/membranes10090225] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 07/14/2020] [Accepted: 07/16/2020] [Indexed: 12/31/2022]
Abstract
Standalone membrane distillation (MD) and forward osmosis (FO) have been considered as promising technologies for produced water treatment. However, standalone MD is still vulnerable to membrane-wetting and scaling problems, while the standalone FO is energy-intensive, since it requires the recovery of the draw solution (DS). Thus, the idea of coupling FO and MD is proposed as a promising combination in which the MD facilitate DS recovery for FO-and FO acts as pretreatment to enhance fouling and wetting-resistance of the MD. This study was therefore conducted to investigate the effect of DS temperature on the dynamic of water flux of a hybrid FO-MD. First, the effect of the DS temperature on the standalone FO and MD was evaluated. Later, the flux dynamics of both units were evaluated when the FO and DS recovery (via MD) was run simultaneously. Results show that an increase in the temperature difference (from 20 to 60 °C) resulted in an increase of the FO and MD fluxes from 11.17 ± 3.85 to 30.17 ± 5.51 L m-2 h-1, and from 0.5 ± 0.75 to 16.08 L m-2 h-1, respectively. For the hybrid FO-MD, either MD or FO could act as the limiting process that dictates the equilibrium flux. Both the concentration and the temperature of DS affected the flux dynamic. When the FO flux was higher than MD flux, DS was diluted, and its temperature decreased; both then lowered the FO flux until reaching an equilibrium (equal FO and MD flux). When FO flux was lower than MD flux, the DS was concentrated which increased the FO flux until reaching the equilibrium. The overall results suggest the importance of temperature and concentration of solutes in the DS in affecting the water flux dynamic hybrid process.
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Affiliation(s)
- Normi Izati Mat Nawi
- Department of Chemical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak 32610, Malaysia; (N.I.M.N.); (G.A.); (N.A.H.N.)
| | - Muhammad Roil Bilad
- Department of Chemical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak 32610, Malaysia; (N.I.M.N.); (G.A.); (N.A.H.N.)
| | - Ganeswaran Anath
- Department of Chemical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak 32610, Malaysia; (N.I.M.N.); (G.A.); (N.A.H.N.)
| | - Nik Abdul Hadi Nordin
- Department of Chemical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak 32610, Malaysia; (N.I.M.N.); (G.A.); (N.A.H.N.)
| | - Jundika Candra Kurnia
- Department of Mechanical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar 32610, Perak Darul Ridzuan, Malaysia;
| | - Yusuf Wibisono
- Bioprocess Engineering, Brawijaya University, Malang 65141, Indonesia;
| | - Nasrul Arahman
- Department of Chemical Engineering, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia;
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Yan J, Liu J, Ye W, Yuan W, Lin J, Xie J, Huang X, Xie J, Bao M, Yang J, Liu S, Chen W, Chen Y, Zhang H. Enhanced organic compounds utilization and desalination of coal-fired power plant FGD wastewater by mixed bacterial sulphate reducing consortium. Biochem Eng J 2020. [DOI: 10.1016/j.bej.2020.107549] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Zheng L, Jiao Y, Zhong H, Zhang C, Wang J, Wei Y. Insight into the magnetic lime coagulation-membrane distillation process for desulfurization wastewater treatment: From pollutant removal feature to membrane fouling. JOURNAL OF HAZARDOUS MATERIALS 2020; 391:122202. [PMID: 32036311 DOI: 10.1016/j.jhazmat.2020.122202] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 01/21/2020] [Accepted: 01/28/2020] [Indexed: 06/10/2023]
Abstract
The high suspended solid (SS) and salts were main issues for flue gas desulfurization wastewater (FGDW). A magnetic lime coagulation (MLC)-membrane distillation (MD) integrated process was firstly applied with a self-made poly (vinylidene fluoride-co-chlorotrifluoroethylene) (PVDF-CTFE) membrane and the pollutants remove feature and membrane fouling were discussed. The SS was nearly 100 % removed and magnetic seed significantly accelerate the settleability. The flux was 43.00 kg/m2 h with a salt rejection >99 %. It was higher than 13 kg/m2 h in the first 125 h during the 18d continuous test, and the rejection for all cations, anions, total organic carbon (TOC) and total inorganic carbon (TIC) were higher than 99.95 %, 99.00 %, 98.81 %, and 99.65 %, respectively. Humic substances and tryptophan with 100-5000 Da were main dissolved organic matter (DOM), which were significantly removed. However, membrane fouling and wetting happened after 150 h. Scaling was the main foulants, while the organic fouling and biofouling were also detected. A new "bricklaying model" was induced to depict the formation of foulant layer, the colloids, organic matters (OMs) and microbe communities act as the "concrete", while the inorganic crystals (magnesium and calcium oxysulphides) were the "bricks". This contribution offers a new method for FGDW treatment and the membrane fouling mechanism of MD process.
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Affiliation(s)
- Libing Zheng
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Department of Water Pollution Control Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Yunyi Jiao
- Department of Water Pollution Control Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; School of Architecture and Construction, University of South China, Hengyang 421001, China
| | - Hui Zhong
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Department of Water Pollution Control Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Chun Zhang
- Department of Water Pollution Control Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Jun Wang
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China; Department of Water Pollution Control Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Yuansong Wei
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China; Department of Water Pollution Control Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
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Naidu G, Tijing L, Johir M, Shon H, Vigneswaran S. Hybrid membrane distillation: Resource, nutrient and energy recovery. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.117832] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Ang WL, Mohammad AW, Johnson D, Hilal N. Unlocking the application potential of forward osmosis through integrated/hybrid process. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 706:136047. [PMID: 31864996 DOI: 10.1016/j.scitotenv.2019.136047] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 12/02/2019] [Accepted: 12/08/2019] [Indexed: 06/10/2023]
Abstract
Study of forward osmosis (FO) has been increasing steadily over recent years with applications mainly focusing on desalination and wastewater treatment processes. The working mechanism of FO lies in the natural movement of water between two streams with different osmotic pressure, which makes it useful in concentrating or diluting solutions. FO has rarely been operated as a stand-alone process. Instead, FO processes often appear in a hybrid or integrated form where FO is combined with other treatment technologies to achieve better overall process performance and cost savings. This article aims to provide a comprehensive review on the need for hybridization/integration for FO membrane processes, with emphasis given to process enhancement, draw solution regeneration, and pretreatment for FO fouling mitigation. In general, integrated/hybrid FO processes can reduce the membrane fouling propensity; prepare the solution suitable for subsequent value-added uses and production of renewable energy; lower the costs associated with energy consumption; enhance the quality of treated water; and enable the continuous operation of FO through the regeneration of draw solution. The future potential of FO lies in the success of how it can be hybridized or integrated with other technologies to minimize its own shortcomings, while enhancing the overall performance.
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Affiliation(s)
- Wei Lun Ang
- Centre for Sustainable Process Technology (CESPRO), Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia; Chemical Engineering Programme, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia.
| | - Abdul Wahab Mohammad
- Centre for Sustainable Process Technology (CESPRO), Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia; Chemical Engineering Programme, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
| | - Daniel Johnson
- Centre for Water Advanced Technologies and Environmental Research (CWATER), College of Engineering, Swansea University, Swansea SA1 8EN, UK
| | - Nidal Hilal
- Centre for Water Advanced Technologies and Environmental Research (CWATER), College of Engineering, Swansea University, Swansea SA1 8EN, UK; NYUAD Water Research Center, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates
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31
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Ye X, Zhang C, Wang S, Yang D, Guo B, An X, Yu A. Simulation of desulphurization wastewater evaporation through flue gas. POWDER TECHNOL 2020. [DOI: 10.1016/j.powtec.2019.05.046] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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32
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Kim Y, Li S, Ghaffour N. Evaluation of different cleaning strategies for different types of forward osmosis membrane fouling and scaling. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2019.117731] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Solis KLB, Kwon YH, Kim MH, An HR, Jeon C, Hong Y. Metal organic framework UiO-66 and activated carbon composite sorbent for the concurrent adsorption of cationic and anionic metals. CHEMOSPHERE 2020; 238:124656. [PMID: 31472345 DOI: 10.1016/j.chemosphere.2019.124656] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 08/21/2019] [Accepted: 08/23/2019] [Indexed: 06/10/2023]
Abstract
A composite sorbent for the simultaneous removal of both Hg2+ and SeO32- from aqueous media was produced from the solvothermal synthesis of a zirconium metal organic framework, UiO-66, in the presence of activated carbon. The composite sorbent has a large surface area of 1051 m2 g-1 with crystalized porous structures and has strong thermal stability up to 600 °C. The contaminant uptake of the sorbent follows a Langmuir adsorption isotherm with maximum sorption capacity of 205 mg g-1 and 168 mg g-1 for Hg2+ and SeO32-, respectively. Scanning electron microscopy-energy dispersive spectroscopy results show that the Se regions overlap exclusively with Zr-rich regions suggesting that SeO32- adsorption depends entirely on the exposed UiO-66 surface. In addition, X-ray photoelectron spectroscopy spectra of Se 3d and Hg 4f showed the association of SeO32- and Hg2+ on the UiO-66 and carbon surfaces, respectively. The sorbent could facilitate the development of a single process for the simultaneous removal of cationic Hg and anionic Se as well as other similar ionic metals with opposite charges from aqueous media.
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Affiliation(s)
- Kurt Louis B Solis
- Department of Environmental Engineering, Korea University, Sejong City, 30019, Republic of Korea
| | - Young-Hwan Kwon
- Department of Chemical Engineering, Daegu University, Geongsan-si, 38453, Republic of Korea
| | - Moon-Hyeon Kim
- Department of Environmental Engineering, Daegu University, Geongsan-si, 38453, Republic of Korea
| | - Ha-Rim An
- Advanced Nano-Surface Group, Korea Basic Science Institute, Daejeon City, 34133, Republic of Korea
| | - Cheolho Jeon
- Advanced Nano-Surface Group, Korea Basic Science Institute, Daejeon City, 34133, Republic of Korea
| | - Yongseok Hong
- Department of Environmental Engineering, Korea University, Sejong City, 30019, Republic of Korea.
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Gwak G, Kim DI, Kim J, Zhan M, Hong S. An integrated system for CO2 capture and water treatment by forward osmosis driven by an amine-based draw solution. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.03.036] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Boo C, Hong S, Elimelech M. Relating Organic Fouling in Membrane Distillation to Intermolecular Adhesion Forces and Interfacial Surface Energies. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:14198-14207. [PMID: 30481005 DOI: 10.1021/acs.est.8b05768] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
This study investigates the fouling mechanisms in membrane distillation, focusing on the impact of foulant type and membrane surface chemistry. Interaction forces between a surface-functionalized particle probe simulating a range of organic foulants and model surfaces, modified with different surface energy materials, were measured by atomic force microscopy. The measured interaction forces were compared to those calculated based on the experimentally determined surface energy components of the particle probe, model surface, and medium (i.e., water). Surfaces with low interfacial energy exhibited high attractive interaction forces with organic foulants, implying a higher fouling potential. In contrast, hydrophilic surfaces (i.e., surfaces with high interfacial energy) showed the lowest attractive forces with all types of foulants. We further performed fouling experiments with alginate, humic acid, and mineral oil in direct contact membrane distillation using polyvinylidene fluoride membranes modified with various materials to control membrane surface energy. The observed fouling behavior was compared to the interaction force data to better understand the underlying fouling mechanisms. A remarkable correlation was obtained between the evaluated interaction force data and the fouling behavior of the membranes with different surface energy. Membranes with low surface energy were fouled by hydrophobic, low surface tension foulants via "attractive" and subsequent "adsorptive" interaction mechanisms. Furthermore, such membranes have a higher fouling potential than membranes with high or ultralow surface energy.
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Affiliation(s)
- Chanhee Boo
- Department of Earth and Environmental Engineering , Columbia University , New York , New York 10027-6623 , United States
- Department of Chemical and Environmental Engineering , Yale University , New Haven , Connecticut 06520-8286 , United States
| | - Seungkwan Hong
- School of Civil, Environmental and Architectural Engineering , Korea University , 145 Anam-ro , Seongbuk-Gu, Seoul 02841 , Republic of Korea
| | - Menachem Elimelech
- Department of Chemical and Environmental Engineering , Yale University , New Haven , Connecticut 06520-8286 , United States
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