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Ma X, Yuan Z, Lin J, Cui Y, Wang S, Pan Y, Chernikov R, Long Cheung LK, Deevsalar R, Jia Y. Local Structure and Crystallization Transformation of Hydrous Ferric Arsenate in Acidic H 2O-Fe(III)-As(V)-SO 42- Systems: Implications for Acid Mine Drainage and Arsenic Geochemical Cycling. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:7176-7185. [PMID: 38606801 DOI: 10.1021/acs.est.4c01235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/13/2024]
Abstract
Hydrous ferric arsenate (HFA) is a common thermodynamically metastable phase in acid mine drainage (AMD). However, little is known regarding the structural forms and transformation mechanism of HFA. We investigated the local atomic structures and the crystallization transformation of HFA at various Fe(III)/As(V) ratios (2, 1, 0.5, 0.33, and 0.25) in acidic solutions (pH 1.2 and 1.8). The results show that the Fe(III)/As(V) in HFA decreases with decreasing initial Fe(III)/As(V) at acidic pHs. The degree of protonation of As(V) in HFA increases with increasing As(V) concentrations. The Fe K-edge extended X-ray absorption fine structure and X-ray absorption near-edge structure results reveal that each FeO6 is linked to more than two AsO4 in HFA precipitated at Fe(III)/As(V) < 1. Furthermore, the formation of scorodite (FeAsO4·2H2O) is greatly accelerated by decreasing the initial Fe(III)/As(V). The release of As(V) from HFA is observed during its crystallization transformation process to scorodite at Fe(III)/As(V) < 1, which is different from that at Fe(III)/As(V) ≥ 1. Scanning electron microscopy results show that Oswald ripening is responsible for the coarsening of scorodite regardless of the initial Fe(III)/As(V) or pH. Moreover, the formation of crystalline ferric dihydrogen arsenate as an intermediate phase at Fe(III)/As(V) < 1 is responsible for the enhanced transformation rate from HFA to scorodite. This work provides new insights into the local atomic structure of HFA and its crystallization transformation that may occur in AMD and has important implications for arsenic geochemical cycling.
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Affiliation(s)
- Xu Ma
- College of Environment and Resources, Dalian Minzu University, Dalian 116600, China
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
| | - Zidan Yuan
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
| | - Jinru Lin
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
| | - Yubo Cui
- College of Environment and Resources, Dalian Minzu University, Dalian 116600, China
| | - Shaofeng Wang
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Yuanming Pan
- Department of Geological Sciences, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E2, Canada
| | - Roman Chernikov
- Canadian Light Source, University of Saskatchewan, Saskatoon, Saskatchewan S7N 0 × 4, Canada
| | - Leo Ka Long Cheung
- Department of Geological Sciences, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E2, Canada
| | - Reza Deevsalar
- Department of Geological Sciences, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E2, Canada
| | - Yongfeng Jia
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
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Du Y, Du Y, Ma W, Zhao X, Ma M, Cao L, Du D. Application of dirty-acid wastewater treatment technology in non-ferrous metal smelting industry: Retrospect and prospect. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 352:120050. [PMID: 38224641 DOI: 10.1016/j.jenvman.2024.120050] [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: 10/06/2023] [Revised: 12/13/2023] [Accepted: 01/04/2024] [Indexed: 01/17/2024]
Abstract
Dirty-acid wastewater (DW) originating from the non-ferrous metal smelting industry is characterized by a high concentration of H2SO4 and As. During the chemical precipitation treatment, a significant volume of arsenic-containing slag is generated, leading to elevated treatment expenses. The imperative to address DW with methods that are cost-effective, highly efficient, and safe is underscored. This paper conducts a comprehensive analysis of three typical methods to DW treatment, encompassing technical principles, industrial application flow charts, research advancements, arsenic residual treatment, and economic considerations. Notably, the sulfide method emerges as a focal point due to its minimal production of arsenic residue and the associated lowest overall treatment costs. Moreover, in response to increasingly stringent environmental protection policies targeting new pollutants and carbon emissions reduction, the paper explores the evolving trends in DW treatment. These trends encompass rare metal and sulfuric acid recycling, cost-effective H2S production methods, and strategies for reducing, safely disposing of, and harnessing resources from arsenic residue.
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Affiliation(s)
- Ying Du
- Key Laboratory of Catalysis Conversion and Energy Materials Chemistry of Ministry of Education, South-Central Minzu University, Wuhan, 430074, PR China; Engineering Research Center for Heavy Metal Pollution Control of Hubei Province, South-Central Minzu University, Wuhan, 430074, PR China
| | - Yaguang Du
- Key Laboratory of Catalysis Conversion and Energy Materials Chemistry of Ministry of Education, South-Central Minzu University, Wuhan, 430074, PR China; Engineering Research Center for Heavy Metal Pollution Control of Hubei Province, South-Central Minzu University, Wuhan, 430074, PR China
| | - Wenbo Ma
- Key Laboratory of Catalysis Conversion and Energy Materials Chemistry of Ministry of Education, South-Central Minzu University, Wuhan, 430074, PR China; Engineering Research Center for Heavy Metal Pollution Control of Hubei Province, South-Central Minzu University, Wuhan, 430074, PR China
| | - Xiaolong Zhao
- Key Laboratory of Catalysis Conversion and Energy Materials Chemistry of Ministry of Education, South-Central Minzu University, Wuhan, 430074, PR China; Engineering Research Center for Heavy Metal Pollution Control of Hubei Province, South-Central Minzu University, Wuhan, 430074, PR China
| | - Mengyu Ma
- Key Laboratory of Catalysis Conversion and Energy Materials Chemistry of Ministry of Education, South-Central Minzu University, Wuhan, 430074, PR China; Engineering Research Center for Heavy Metal Pollution Control of Hubei Province, South-Central Minzu University, Wuhan, 430074, PR China
| | - Longwen Cao
- Daye Nonferrous Corporation, Huangshi, 435005, PR China
| | - Dongyun Du
- Key Laboratory of Catalysis Conversion and Energy Materials Chemistry of Ministry of Education, South-Central Minzu University, Wuhan, 430074, PR China; Engineering Research Center for Heavy Metal Pollution Control of Hubei Province, South-Central Minzu University, Wuhan, 430074, PR China.
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Singh VK, Kumar M, Manna S, Bobde P, Govarthanan M. Removal of arsenic from jarosite waste using hydrometallurgical treatment. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2024; 46:67. [PMID: 38341826 DOI: 10.1007/s10653-024-01868-w] [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: 11/22/2023] [Accepted: 01/10/2024] [Indexed: 02/13/2024]
Abstract
The jarosite waste used during this study consists of minute amount of arsenic that has a potential to be leached into environment when kept in open area. This study tried to recover arsenic from jarosite waste using hydrometallurgical treatment. The comprehensive characterization of jarosite samples was performed using various analytical techniques, including X-ray diffraction (XRD), Fourier transform Infrared (FTIR), scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDX), and it was characterized as natrojarosite. For optimal removal of arsenic, the response surface methodology (RSM) was applied with the key factors, including dosage (A), time (B), temperature (C), and acid concentration (D) on the recovery of arsenic. The results indicated that the dosage (A) and acid concentration (D) demonstrated significant positive effects on arsenic recovery. As expected, the higher dosage and acid concentration was associated with increased recovery percentages for the arsenic from jarosite. Whereas time (B) and temperature (C) did not exhibit statistically significant recovery of arsenic within the specified experimental range. The contour plots showed the optimal operating conditions for the highest recovery percentage was approximately 52.61% when 2.5 g of jarosite was treated with 10 mol/L acid for 150 min at operating temperature of 80°. Although our study showed very moderate recovery of arsenic, it is first report where arsenic has been removed from jarosite waste. Readjustment of range of operating parameters would provide more insight into the further optimization of the yield.
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Affiliation(s)
- Vishal Kumar Singh
- Sustainability Cluster, School of Advanced Engineering, University of Petroleum and Energy Studies, Dehradun, Uttarakhand, 248007, India
| | - Mukul Kumar
- Department of Microbiology, School of Health Science and Technology, University of Petroleum and Energy Studies, Dehradun, Uttarakhand, 248007, India
| | - Suvendu Manna
- Sustainability Cluster, School of Advanced Engineering, University of Petroleum and Energy Studies, Dehradun, Uttarakhand, 248007, India.
| | - Prakash Bobde
- Research and Development Section, University of Petroleum and Energy Studies, Dehradun, Uttarakhand, 248007, India
| | - Muthusamy Govarthanan
- Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, South Korea
- Department of Biomaterials, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Saveetha Dental College and Hospital, Chennai, Tamil Nadu, 600077, India
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Huang Z, Li F, Cui W, Cao G, Yao J. Simulating arsenic discharge flux at a relic smelting site in Guangxi Zhuang Autonomous Region, China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:12094-12111. [PMID: 38225495 DOI: 10.1007/s11356-023-31695-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 12/20/2023] [Indexed: 01/17/2024]
Abstract
Anthropogenic groundwater arsenic (As) pollution is common in many aquifers in Southwest China. It is concerned that long-term random disposal of As smelting slag could induce the transport of high-As groundwater into previously uncontaminated aquifers. Here, we used HELP-MODFLOW-MT3DMS model simulations to integrate the percolation, groundwater flow, and solute transport processes at an aquifer at site scale, constrained by weather, hydrogeology, and monitoring data. Our simulations provide a new method framework of the simulated percolation by HELP model and have induced As spatiotemporal distribution in the aquifer. According to the HELP model simulation results, percolation volume accounts for 24% of rainfall over 18 years. This work determined that the As discharge trend was fitted by double-constants kinetics based on the leaching experiment. And this work calculates total mass distribution of As in the aquifer over 18 years. We have found that the sustained As pollution relies on the rainfall that acts as the primary contributor of elevated As concentrations. Model simulation results suggest that 51.70% of the total As mass (1.96 × 104 kg) was fixed in low permeability solid media. The total As mass discharged into groundwater reached 9.3 × 103 kg, accounting for 24.68%. The accumulative outflow mass of arsenic was 8.0 × 103 kg, accounting for 21.62%.
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Affiliation(s)
- Zhenzhong Huang
- School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing, 100083, People's Republic of China
| | - Fengyan Li
- School of Science, China University of Geosciences (Beijing), Beijing, 100083, People's Republic of China
| | - Weihua Cui
- School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing, 100083, People's Republic of China.
| | - Guoliang Cao
- School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing, 100083, People's Republic of China
| | - Jun Yao
- School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing, 100083, People's Republic of China
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Morales-Mendoza AG, Flores-Trujillo AKI, Ramírez-Castillo JA, Gallardo-Hernández S, Rodríguez-Vázquez R. Effect of Micro-Nanobubbles on Arsenic Removal by Trichoderma atroviride for Bioscorodite Generation. J Fungi (Basel) 2023; 9:857. [PMID: 37623628 PMCID: PMC10455231 DOI: 10.3390/jof9080857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 08/10/2023] [Accepted: 08/11/2023] [Indexed: 08/26/2023] Open
Abstract
The global environmental issue of arsenic (As) contamination in drinking water is a significant problem that requires attention. Therefore, the aim of this research was to address the application of a sustainable methodology for arsenic removal through mycoremediation aerated with micro-nanobubbles (MNBs), leading to bioscorodite (FeAsO4·2H2O) generation. To achieve this, the fungus Trichoderma atroviride was cultivated in a medium amended with 1 g/L of As(III) and 8.5 g/L of Fe(II) salts at 28 °C for 5 days in a tubular reactor equipped with an air MNBs diffuser (TR-MNBs). A control was performed using shaking flasks (SF) at 120 rpm. A reaction was conducted at 92 °C for 32 h for bioscorodite synthesis, followed by further characterization of crystals through Fourier-Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), and X-ray diffraction (XRD) analyses. At the end of the fungal growth in the TR-MNBs, the pH decreased to 2.7-3.0, and the oxidation-reduction potential (ORP) reached a value of 306 mV at 5 days. Arsenic decreased by 70%, attributed to possible adsorption through rapid complexation of oxidized As(V) with the exchangeable ferrihydrite ((Fe(III))4-5(OH,O)12), sites, and the fungal biomass. This mineral might be produced under oxidizing and acidic conditions, with a high iron concentration (As:Fe molar ratio = 0.14). The crystals produced in the reaction using the TR-MNBs culture broth and characterized by SEM, XRD, and FTIR revealed the morphology, pattern, and As-O-Fe vibration bands typical of bioscorodite and römerite (Fe(II)(Fe(III))2(SO4)4·14H2O). Arsenic reduction in SF was 30%, with slight characteristics of bioscorodite. Consequently, further research should include integrating the TR-MNBs system into a pilot plant for arsenic removal from contaminated water.
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Affiliation(s)
- Asunción Guadalupe Morales-Mendoza
- Doctoral Program in Nanosciences and Nanotechnology, Center for Research and Advanced Studies of the National Polytechnic Institute (CINVESTAV-IPN), Instituto Politécnico Nacional Avenue, No. 2508, Zacatenco, Mexico City 07360, Mexico;
| | - Ana Karen Ivanna Flores-Trujillo
- Department of Biotechnology and Bioengineering, Center for Research and Advanced Studies of the National Polytechnic Institute (CINVESTAV-IPN), Instituto Politécnico Nacional Avenue, No. 2508, Zacatenco, Mexico City 07360, Mexico; (A.K.I.F.-T.); (J.A.R.-C.)
| | - Jesús Adriana Ramírez-Castillo
- Department of Biotechnology and Bioengineering, Center for Research and Advanced Studies of the National Polytechnic Institute (CINVESTAV-IPN), Instituto Politécnico Nacional Avenue, No. 2508, Zacatenco, Mexico City 07360, Mexico; (A.K.I.F.-T.); (J.A.R.-C.)
- Subdirection of Health Riks, National Center of Disasters Prevention CENAPRED, Delfin Madrigal Avenue, No. 665, Pedregal de Santo Domingo, Coyoacán, Mexico City 04360, Mexico
| | - Salvador Gallardo-Hernández
- Departament of Physics, Center for Research and Advanced Studies of the National Polytechnic Institute (CINVESTAV-IPN), Instituto Politécnico Nacional Avenue, No. 2508, Zacatenco, Mexico City 07360, Mexico;
| | - Refugio Rodríguez-Vázquez
- Department of Biotechnology and Bioengineering, Center for Research and Advanced Studies of the National Polytechnic Institute (CINVESTAV-IPN), Instituto Politécnico Nacional Avenue, No. 2508, Zacatenco, Mexico City 07360, Mexico; (A.K.I.F.-T.); (J.A.R.-C.)
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6
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Yang N, Qi X, Li Y, Li G, Duan X. Highly effective remediation of high arsenic-bearing wastewater using aluminum-containing waste residue. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 325:116417. [PMID: 36257224 DOI: 10.1016/j.jenvman.2022.116417] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 09/28/2022] [Accepted: 09/29/2022] [Indexed: 06/16/2023]
Abstract
Wastewater from non-ferrous metal smelting is known as one of the most dangerous sources of arsenic (As) due to its high acidity and high arsenic content. Herein, we propose a new environmental protection process for the efficient purification and removal of arsenic from wastewater by the formation of an AlAsO4@silicate core-shell structure based on the characteristics of aluminum-containing waste residue (AWR). At room temperature, the investigation with AWR almost achieved 100% As removal efficiency from wastewater, reducing the arsenic concentration from 5500 mg/L to 52 μg/L. With Al/As molar ratio of 3.5, the structural properties of AWR provided good adsorption sites for arsenic adsorption, leading to the formation of arsenate and insoluble aluminum arsenate with As. As-containing AWR silicate shells were produced under alkaline conditions, resulting in an arsenic leaching concentration of 1.32 mg/L in the TCLP test. AWR, as an efficient As removal and fixation agent, shows great potential in the treatment of copper smelting wastewater, and is expected to achieve large-scale industrial As removal.
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Affiliation(s)
- Nina Yang
- Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Education, State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, China
| | - Xianjin Qi
- Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Education, State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, China.
| | - Yongkui Li
- Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Education, State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, China
| | - Guohua Li
- Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Education, State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, China
| | - Xiaoxu Duan
- Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Education, State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, China
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Ji L, Xu H, Sun X, Huang W, Qu Z, Wang Y, Zhang A, Yan N. Multi-roles of SO 2 to enhance the removal of arsenic from wastewater in sulfidation processes. JOURNAL OF HAZARDOUS MATERIALS 2022; 436:129038. [PMID: 35739690 DOI: 10.1016/j.jhazmat.2022.129038] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Revised: 04/20/2022] [Accepted: 04/27/2022] [Indexed: 06/15/2023]
Abstract
Sulfidation has been an efficient method for arsenic (As) removal from acid wastewater, yet it is inefficient under neutral and weak acid conditions. The higher pH values resulted in the formation of the unstable As-S precipitates, especially employing Na2S as the vulcanizing agent as it can increase the pH value dramatically. Here, we found that SO2 exhibited excellent multi-roles in As removal when applying H2S-sulfidation method. The acidification effect of SO2 lead to the decreasing of pH values, guaranteed the stable As-S precipitates formation. Through the SO2 pre-treatment method, the results indicated that the pH values decreased from 7 to 2.8, with the increased H2S utilization efficiencies for As(III) removal from 20.9% to 92.0%. Moreover, SO2 post-treatment not only increased the As(III) removal efficiency, but also eliminated the excessive sulfides in solution. The reaction mechanism analysis indicated that the liquid comproportionation reaction between SO2 and excessive sulfides plays a vital role. The generated nascent sulfur (N-S0) can adsorb arsenic species and promote the agglomeration of As(III)-S precipitates. Furthermore, the SO2 and H2S co-treatment exhibited excellent As(V) removal performance. This study provides a new alternative method to improve the H2S-sulfidation process with SO2 for As removal from wastewater.
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Affiliation(s)
- Leipeng Ji
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Haomiao Xu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xiaoming Sun
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Wenjun Huang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Zan Qu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yongjun Wang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; Henan Yuguang Gold & Lead Group Co. Ltd., Henan 459000, China
| | - Anbang Zhang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Naiqiang Yan
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China.
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Qu C, Duan C, Li W, Wu X, Liu Z, Feng F, Tang X, Chai X, Tang CJ. Understanding the slight inhibition of high As(III) stress on nitritation process: Insights from arsenic speciation and microbial community analyses. JOURNAL OF HAZARDOUS MATERIALS 2022; 435:128957. [PMID: 35490631 DOI: 10.1016/j.jhazmat.2022.128957] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 04/13/2022] [Accepted: 04/15/2022] [Indexed: 06/14/2023]
Abstract
Nitritation process with ammonia-oxidizing bacteria frequently suffers inhibition from heavy metals in industrial wastewater treatment. However, As(III), one of the most toxic metalloids, showed slight inhibition though the arsenic accumulation content in the sludge reached 91.8 mg L-1 in this study. Here, we combined long-term reactor operation with microbiological analyses to explore the slight inhibition mechanisms of As(III) on nitritation consortia. The results showed that no obvious changes induced by As(III) occurred in apparent characteristics and morphology of the nitritation consortia, whereas dosing As(III) induced shifts in the arsenic speciation and microbial community. 84.1% of As(III) was oxidized to As(V) in the acclimated sludge, decreasing the toxicity of As(III) to nitritation consortia. Insight to the microbial community, the relative abundances of Thermaceae and Phycisphaeraceae responsible for As(III) oxidation were increased to 7.4% and 6.6% under the stress of high-concentration As(III), respectively. Further, these increased arsenite-oxidizing bacteria probably accepted electron acceptor NO2- from ammonia-oxidizing bacteria to oxidize As(III). Our results indicated that microbial As(III) oxidation was the dominant detoxification pathway, providing new insights into nitritation characteristics under long-term As(III) stress.
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Affiliation(s)
- Caiyan Qu
- Institute of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha 410083, China; Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha 410083, China; Water Pollution Control Technology Key Lab of Hunan Province, Changsha 410004, China
| | - Chengshan Duan
- Institute of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha 410083, China; Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha 410083, China; Water Pollution Control Technology Key Lab of Hunan Province, Changsha 410004, China
| | - Weimin Li
- Hunan Provincial Center of Ecology and Environment Affairs, Changsha 410019, China
| | - Xing Wu
- Institute of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha 410083, China; Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha 410083, China; Water Pollution Control Technology Key Lab of Hunan Province, Changsha 410004, China
| | - Zhigong Liu
- Institute of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha 410083, China; Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha 410083, China; Water Pollution Control Technology Key Lab of Hunan Province, Changsha 410004, China
| | - Fan Feng
- Institute of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha 410083, China; Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha 410083, China; Water Pollution Control Technology Key Lab of Hunan Province, Changsha 410004, China
| | - Xi Tang
- Institute of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha 410083, China; Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha 410083, China; Water Pollution Control Technology Key Lab of Hunan Province, Changsha 410004, China.
| | - Xilin Chai
- Institute of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha 410083, China; Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha 410083, China; Water Pollution Control Technology Key Lab of Hunan Province, Changsha 410004, China
| | - Chong-Jian Tang
- Institute of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha 410083, China; Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha 410083, China; Water Pollution Control Technology Key Lab of Hunan Province, Changsha 410004, China.
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9
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Li Y, Qi X, Li G, Duan X, Yang N. Removal of arsenic in acidic wastewater using Lead-Zinc smelting slag: From waste solid to As-stabilized mineral. CHEMOSPHERE 2022; 301:134736. [PMID: 35500627 DOI: 10.1016/j.chemosphere.2022.134736] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 03/03/2022] [Accepted: 04/22/2022] [Indexed: 06/14/2023]
Abstract
High-arsenic wastewater has long been considered a major threat to ecological balance and human health because of its strong toxicity and high mobility. Herein, an environmentally friendly process was proposed for As removal and fixation in the form of As-stabilized mineral, using Lead-Zinc smelting (LZS) slag as the in situ Fe donor, neutralizer, and crystal seed. The slag was dissolved in the wastewater and released Fe and Ca ions, while simultaneously increasing the pH value of the solution to help scorodite synthesis. The dissolved Ca2+ ion preferentially reacted with SO42- ion in the form of CaSO4·2H2O precipitate as in situ "seeds" for As precipitation. The dissolved Fe(II) and As(III) ions were oxidized to Fe(III) and As(V) ions by H2O2, and later reacted with each other to generated amorphous ferric arsenate on the surface of CaSO4·2H2O, and then evolved into scorodite crystals with high stability. With a Fe/As molar ratio of 2, a reaction temperature of 90 °C, and a reaction time of 12 h, 98.42% of As was effectively precipitated from the wastewater with an initial As concentration of 7530.00 mg/L. Moreover, the leached As concentration of the As-bearing precipitate in the TCLP test was 3.46 mg/L. The concentration of the residual As and heavy metals ions in the final filtrate was lower than local wastewater discharge standards, successfully realizing the treatment of smelting wastewater. In summary, a prospective process successfully shows a great potential for co-treatment of LZS wastewater and slag, which could advance the large-scale disposal of LZS plants.
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Affiliation(s)
- Yongkui Li
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, China.
| | - Xianjin Qi
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, China.
| | - Guohua Li
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, China
| | - Xiaoxu Duan
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, China
| | - Nina Yang
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, China
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10
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Yong Y, Yongkui L, Jianhang H, Dapeng Z, Hua W. An all-in-one strategy for resource recovery and immobilization of arsenic from arsenic-bearing gypsum sludge. CHEMOSPHERE 2022; 296:134078. [PMID: 35202660 DOI: 10.1016/j.chemosphere.2022.134078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 02/17/2022] [Accepted: 02/19/2022] [Indexed: 06/14/2023]
Abstract
Arsenic (As)-bearing gypsum sludge, one of the most prominent hazardous wastes, has created a myriad of critical problems in human health, waters, soils, and sediments at the global scale. Unfortunately, the reclamation and disposal of As-bearing gypsum sludge have been rarely investigated. This paper aims to explore a novel technology for simultaneous value-added utilization and harmless exploitation of As-bearing gypsum sludge. In the experiment, As-bearing gypsum sludge and anthracite were mixed, granulated, and then roasted in Ar atmosphere. Based on the thermodynamic analysis and experimental results, the As migration mechanism in the As-bearing gypsum sludge was determined during the roasting process. Under optimal conditions, 90% of As phase was volatilized and then recovered in the form of elemental As99.5, and it could act as a chemical product. In addition, As99.5 could be further processed into high-purity As and As2O3 using existing chlorination-rectification-reduction process and oxidation process, respectively, which can be widely used in the treatments of semiconductor material, pigment, and wood. Residual As primarily occurred as Fe-As compounds, but the leached As concentration in the toxicity characteristic leaching procedure was only 0.008 mg/L. Correspondingly, a new As immobilization method that generates Fe-As compounds (α-Fe and AsFe2) is first proposed and then verified, which may be widely used for simultaneous As-bearing solid wastes reduction and improved harmlessness. This paper is significant for development of the metallurgical, mining, acid, and thermal power industries, minimizing its environmental risk.
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Affiliation(s)
- Yu Yong
- Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Education, Kunming University of Science and Technology, Kunming, 650093, China; National Local Joint Engineering Research Center of Energy Saving and Environmental Protection Technology in Metallurgy and Chemical Engineering Industry, Kunming University of Science and Technology, Kunming, 650093, China; State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming, 650093, China
| | - Li Yongkui
- School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Hu Jianhang
- Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Education, Kunming University of Science and Technology, Kunming, 650093, China; National Local Joint Engineering Research Center of Energy Saving and Environmental Protection Technology in Metallurgy and Chemical Engineering Industry, Kunming University of Science and Technology, Kunming, 650093, China; State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming, 650093, China
| | - Zhong Dapeng
- College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China
| | - Wang Hua
- Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Education, Kunming University of Science and Technology, Kunming, 650093, China; National Local Joint Engineering Research Center of Energy Saving and Environmental Protection Technology in Metallurgy and Chemical Engineering Industry, Kunming University of Science and Technology, Kunming, 650093, China; State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming, 650093, China.
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11
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Hossain MS, Ahmed S. Synthesis of nano-crystallite gypsum and bassanite from waste Pila globosa shells: crystallographic characterization. RSC Adv 2022; 12:25096-25105. [PMID: 36199888 PMCID: PMC9440379 DOI: 10.1039/d2ra04881g] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 08/21/2022] [Indexed: 11/21/2022] Open
Abstract
For the first time, in this work, waste Pila globosa shells have been used to synthesize two industrially valuable materials, gypsum and bassanite. In the first stage, gypsum was synthesized using a wet chemical precipitation method. Subsequently, bassanite was produced by the heat treatment of gypsum at a certain temperature (200 °C), which was chosen after TGA and DSC analysis. The synthesized gypsum and bassanite phases were confirmed by XRD with the assistance of FTIR spectroscopy. Various crystallographic parameters of gypsum and bassanite were investigated, such as the crystallite size (a number of models were employed along with the Scherrer equation), crystallinity index, lattice parameters, unit cell volume, dislocation density, relative intensity, preference growth, specific surface area, microstrain (models were also engaged), and residual stress using the XRD-sin2 Ψ technique. For the first time, in this work, waste Pila globosa shells have been used to synthesize two industrially valuable materials, gypsum and bassanite.![]()
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Affiliation(s)
- Md. Sahadat Hossain
- Institute of Glass & Ceramic Research and Testing, Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka-1205, Bangladesh
| | - Samina Ahmed
- Institute of Glass & Ceramic Research and Testing, Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka-1205, Bangladesh
- BCSIR Laboratories Dhaka, Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka-1205, Bangladesh
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12
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Ma X, Zhang J, Gomez MA, Ding Y, Yao S, Lv H, Wang X, Wang S, Jia Y. Partitioning and transformation behavior of arsenic during Fe(III)-As(III)-As(V)-SO 42- coprecipitation and subsequent aging process in acidic solutions: Implication for arsenic mobility and fixation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 799:149474. [PMID: 34426338 DOI: 10.1016/j.scitotenv.2021.149474] [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: 05/11/2021] [Revised: 07/17/2021] [Accepted: 08/01/2021] [Indexed: 06/13/2023]
Abstract
The coprecipitation and subsequent aging of Fe(III)-As(III)-As(V)-SO42- play an important role in controlling As behavior in acidic systems, such as acid mine drainage and hydrometallurgical acid waste. In this study, we investigated the redistribution and transformation of As in the Fe(III)-As(III)-As(V)-SO42- system (As(III)/As(V) ≈ 1) at different Fe/As molar ratios (i.e., 0.25, 0.5, and 1) and pH (1.2 and 1.8) at 60 °C. The results showed that As(III) and SO42- can be incorporated into the amorphous ferric arsenate and scorodite host phases by forming a Fe(AsO4)x(AsO3)y(SO4)z solid solution. As(III) contents in the freshly coprecipitated solids increased with pH and initial As(III) concentrations. During aging process, As(III) contents in the solid products with Fe/As molar ratios of 0.5 and 1 increased with aging time at pH 1.8. In contrast, As(III) was gradually expelled from aging products with aging time at pH 1.2, regardless of Fe/As molar ratio. X-ray diffraction (XRD), scanning electron microscopy (SEM), attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR), and Raman spectroscopy characterization results showed that an As(III)-SO42--doped scorodite was formed at Fe/As molar ratio ≤0.5 during the aging process. It was also found that As(III) had an inhibitory effect on the transformation of poorly crystalline ferric arsenate to scorodite. The present study may have important implications for understanding the geochemical cycle of As, Fe, and SO42- in acidic solutions and give further understanding on the mechanisms involved in As removal and fixation in hydrometallurgical unit operations.
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Affiliation(s)
- Xu Ma
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China; Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
| | - Jiaxi Zhang
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
| | - Mario A Gomez
- Liaoning Engineering Research Center for Treatment and Recycling of Industrially Discharged Heavy Metals, Shenyang University of Chemical Technology, Shenyang 110142, China
| | - Yu Ding
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Shuhua Yao
- Liaoning Engineering Research Center for Treatment and Recycling of Industrially Discharged Heavy Metals, Shenyang University of Chemical Technology, Shenyang 110142, China
| | - Hongtao Lv
- Affairs Service Center of Ecological Environment of Liaoning Province, Shenyang 110161, China
| | - Xin Wang
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
| | - Shaofeng Wang
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China.
| | - Yongfeng Jia
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
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13
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Lu Z, Qi X, Zhu X, Li X, Li K, Wang H. Highly effective remediation of high-arsenic wastewater using red mud through formation of AlAsO 4@silicate precipitate. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 287:117484. [PMID: 34153609 DOI: 10.1016/j.envpol.2021.117484] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 05/11/2021] [Accepted: 05/27/2021] [Indexed: 06/13/2023]
Abstract
High-arsenic wastewater derived from the metallurgical industry of nonferrous minerals is one of the most dangerous arsenic (As) sources that usually follow the emission of massive hazardous arsenic-bearing wastes. Considering the properties of red mud (RM), we propose an alternative and environmentally friendly method for the efficient remediation of high-arsenic wastewater using RM through formation of AlAsO4@silicate precipitate, aiming at ''zero-emission of hazardous solid waste''. The results show nearly 100% of arsenic could be stepwisely removed from high-arsenic wastewater and reduce the arsenic concentration from 6100 mg/L to 40 μg/L using RM at room temperature. The highest arsenic removal capacity of RM reaches 101.5 mg/g at a RM-to-wastewater ratio of 40 g/L due to the superior arsenic adsorption and the co-precipitation of arsenate and Al3+ to form insoluble aluminum arsenate. The silicate shell of arsenic-loaded RM created at an alkaline condition acts as an arsenic stabilizer, resulting in a leached arsenic concentration of 1.2 mg/L in TCLP tests. RM acts as a highly effective arsenic remover and stabilizer for the disposal of high-arsenic wastewater. It shows great potential for the remediation of wastewater containing heavy metals with varying concentrations to produce clean water available for industrial purpose.
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Affiliation(s)
- Zhixu Lu
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China
| | - Xianjin Qi
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China
| | - Xing Zhu
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China.
| | - Xuezhu Li
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China
| | - Kongzhai Li
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China
| | - Hua Wang
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China
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Zhang X, Sun Y, Ma Y, Ji W, Ren Y. Minimization and stabilization of smelting arsenic-containing hazardous wastewater and solid waste using strategy for stepwise phase-controlled and thermal-doped copper slags. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:21159-21173. [PMID: 33405145 DOI: 10.1007/s11356-020-11962-y] [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: 08/02/2020] [Accepted: 12/02/2020] [Indexed: 06/12/2023]
Abstract
Minimization and stabilization of arsenic-containing smelting wastewater and residue is of crucial issue to resolve the arsenic contamination. Calcium arsenate is a typical precipitate produced from disposal of smelting acid wastewater. However, it suffers from poor stability and large quantity in the aqueous environment. Copper slags, as for rich-iron species materials, are disposed of in landfills or open-air tailing ponds, which are another waste material that have not been effectively utilized for reuse application. In this study, strategy for sequence of phase-controlled and thermal-doped copper slag technique was used as the efficient means of minimization and stabilization of arsenic-bearing resides. Detailed results were showed that stepwise phase precipitation significantly reduced the formation of hazardous solid waste; the total solid waste was reduced 47.0 wt% because the gypsum was separated from arsenic calcium residues through two-step methods. Subsequently, solid waste stabilization was achieved by using thermal-doped slag, and the high yield of magnetite (75.6 wt%) and fayalite (22.7 wt%) was produced from copper slags. It was proved that these iron-rich species displayed the remarkable performance to stabilize arsenic due to the formation of Fe-As-Ca-O complex; compared with the raw solid waste, the arsenic leachability was decreased from 280.75 to 1.05 mg/L via copper slag stabilization process. The immobilized arsenic content was 25.0 wt%. Overall, the proposed strategy for stepwise phase-controlled and thermal-doped copper slags was a potentially effective strategy for reducing emissions and pollution of arsenic-containing wastewater and residue.
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Affiliation(s)
- Xiaorui Zhang
- Xinhua College of Ningxia University, Yinchuan, 750021, People's Republic of China
| | - Yonggang Sun
- State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering, Department of Chemistry & Chemical Engineering, Ningxia University, Yinchuan, 750021, People's Republic of China.
| | - Yulong Ma
- State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering, Department of Chemistry & Chemical Engineering, Ningxia University, Yinchuan, 750021, People's Republic of China
| | - Wenxin Ji
- State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering, Department of Chemistry & Chemical Engineering, Ningxia University, Yinchuan, 750021, People's Republic of China
| | - Yongsheng Ren
- State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering, Department of Chemistry & Chemical Engineering, Ningxia University, Yinchuan, 750021, People's Republic of China
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