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Ji X, Liang H, Hu S, Yang B, Xiao K, Yu G. Highly efficient decomplexation of chelated nickel and copper effluent through CuO-CeO 2-Co 3O 4 nanocatalyst loaded on ceramic membrane. CHEMOSPHERE 2023; 334:138981. [PMID: 37209848 DOI: 10.1016/j.chemosphere.2023.138981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/26/2023] [Accepted: 05/17/2023] [Indexed: 05/22/2023]
Abstract
A novel CuO-CeO2-Co3O4 nanocatalyst loaded on Al2O3 ceramic composite membrane (CCM-S) was synthesized through spraying-calcination method, which can be beneficial to the engineering application of scattered granular catalyst. BET and FESEM-EDX testing revealed that CCM-S possessed a porous character with high BET surface area of 22.4 m2/g and flat modified surface with extremely fine particle aggregation. The CCM-S calcined above 500 °C presented excellent anti-dissolution effect due to the formation of crystals. XPS indicated that the composite nanocatalyst possessed the variable valence states, which were conducive to exert the catalytic effect of Fenton-like reaction. Subsequently, the effects of experimental parameters including fabricate method, calcination temperature, H2O2 dosage, initial pH value, and CCM-S amount were further investigated considering the removal efficiency of Ni(II)-complex and COD after decomplexation and precipitation (pH = 10.5) treatment within 90 min. Under the optimal reaction condition, the residual Ni(II)-complex and Cu(II)-complex concentration from actual wastewater was all lower than 0.18 mg/L and 0.27 mg/L, respectively; meanwhile, the removal efficiency of COD was all higher than 50% in the mixed electroless plating effluent. Besides, the CCM-S could still maintain high catalytic activity after a six-cycle test, and the removal efficiency was slightly declined from 99.82% to 88.11%. These outcomes indicated that CCM-S/H2O2 system was provided with a potential applicability on treatment of real chelated metal wastewater.
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Affiliation(s)
- Xianhua Ji
- Jiangsu Jingyuan Environmental Protection Co., Ltd, Nantong, 226000, PR China; School of Environment, Tsinghua University, Beijing, 100084, PR China
| | - Huiyu Liang
- Department of Environmental Engineering, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, PR China
| | - Sukai Hu
- Department of Environmental Engineering, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, PR China
| | - Bo Yang
- Department of Environmental Engineering, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, PR China.
| | - Ke Xiao
- Department of Environmental Engineering, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, PR China
| | - Gang Yu
- Advanced Interdisciplinary Institute of Environmental Ecology, Beijing Normal University, Zhuhai, 519085, PR China.
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Zhang H, Xiong R, Peng S, Xu D, Ke J. Highly Active Manganese Oxide from Electrolytic Manganese Anode Slime for Efficient Removal of Antibiotics Induced by Dissociation of Peroxymonosulfate. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13101600. [PMID: 37242016 DOI: 10.3390/nano13101600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 04/27/2023] [Accepted: 05/04/2023] [Indexed: 05/28/2023]
Abstract
In this paper, high-activity manganese oxide was prepared from electrolytic manganese anode slime to realize the efficient removal of antibiotics. The effects of sulfuric acid concentration, ethanol dosage, liquid-solid ratio, leaching temperature and leaching time on the leaching of manganese from electrolytic manganese anode slime were systematically studied. Under the optimal conditions, the leaching rate of manganese reached 88.74%. In addition, a Mn3O4 catalyst was synthesized and used to activate hydrogen persulfate (PMS) to degrade tetracycline hydrochloride (TCH). The synthesized Mn3O4 was characterized by XRD, XPS, Raman, SEM and HRTEM. As a result, the prepared Mn3O4 is spherical, with high purity and crystallinity. The catalytic activity of Mn3O4 for PMS to degrade TCH was increased to 82.11%. In addition, after four cycles, the performance remained at 78.5%, showing excellent stability and recyclability. In addition, O2- and 1O2 are the main active species in the degradation reaction. The activity of Mn3O4 is attributed to it containing Mn(II) and Mn(III) at the same time, which can quickly realize the transformation of high-valence and low-valence manganese, promote the transfer of electrons and realize the degradation of organic pollutants.
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Affiliation(s)
- He Zhang
- School of Chemical and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
| | - Ruixue Xiong
- School of Chemical and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
| | - Shijie Peng
- School of Chemical and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
| | - Desheng Xu
- School of Chemical and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
| | - Jun Ke
- School of Chemical and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
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Nicomel NR, Li LY, Du Laing G. Biosolids-based activated carbon for enhanced copper removal from citric-acid-rich aqueous media. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:74742-74755. [PMID: 35641738 DOI: 10.1007/s11356-022-21020-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 05/18/2022] [Indexed: 06/15/2023]
Abstract
In this study, we employed batch experiments to assess the effects of citric acid on the Cu(II) removal efficiencies of seven biosolids-based adsorbents. The adsorbents used were dried biosolids (BS), biosolids biochar (BSBC), biosolids-based activated carbon (SBAC), nitric-acid-modified BSBC (BSBC-HNO3) and SBAC (SBAC-HNO3), and amine-modified BSBC (BSBC-NH2) and SBAC (SBAC-NH2). However, with 100 mM citric acid in 1 mM Cu(II) solution, only SBAC showed an increase in Cu(II) removal efficiency (64.0-93.5%). Therefore, we used SBAC for further optimisation of the adsorption process. The kinetics data, optimally described by the pseudo-second-order model, indicated that bulk Cu(II) adsorption occurred within 10 min. The highest Cu(II) removal was at pH 3, with the estimated maximum Cu(II) adsorption capacity of SBAC increasing from 0.14 to 0.30 mmol/g, with 100 mM citric acid present. This result clearly indicated the positive effect of citric acid on Cu(II) adsorption. With citric acid present, the Freundlich model optimally fitted the adsorption isotherm data, suggesting adsorption of Cu(II) in multilayers. Further investigation of Cu(II) adsorption in a sequential setup proved that SBAC could lower the residual Cu(II) in the solution to below the discharge limit (0.05 mM) in 1 h. Overall, the production of activated carbon from BS has been proven an efficient Cu(II) adsorbent for Cu-citric-acid-rich aqueous media as a simulation of real wastewaters/leachates, as well as achieving waste-to-resources goals. This is the first study to identify an adsorbent (SBAC) with increased Cu(II) adsorption capacity in the presence of excess citric acid.
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Affiliation(s)
- Nina Ricci Nicomel
- Department of Civil Engineering, The University of British Columbia, 6250 Applied Science Lane, Vancouver, BC, V6T 1Z4, Canada
- Department of Green Chemistry and Technology, Ghent University, Coupure Links 653, 9000, Ghent, Belgium
| | - Loretta Y Li
- Department of Civil Engineering, The University of British Columbia, 6250 Applied Science Lane, Vancouver, BC, V6T 1Z4, Canada.
| | - Gijs Du Laing
- Department of Green Chemistry and Technology, Ghent University, Coupure Links 653, 9000, Ghent, Belgium
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Han M, He J, Wei X, Li S, Zhang C, Zhang H, Sun W, Yue T. Deep purification of copper from Cu(II)-EDTA acidic wastewater by Fe(III) replacement/diethyldithiocarbamate precipitation. CHEMOSPHERE 2022; 300:134546. [PMID: 35405198 DOI: 10.1016/j.chemosphere.2022.134546] [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: 01/04/2022] [Revised: 04/03/2022] [Accepted: 04/05/2022] [Indexed: 06/14/2023]
Abstract
Cu(II)-EDTA is a highly stable typical metal-organic complex in a wide pH range (3.0-12.0) and it is difficult to deeply purify Cu(II) by conventional precipitation methods. In this study, Fe(III) replacement/diethyldithiocarbamate (DDTC) precipitation combined process is proposed as a promising strategy to achieve the deep purification of Cu(II) from Cu(II)-EDTA acidic wastewater. The underlying mechanism has also been systematically elucidated by chemical equilibriums, experiments, and density functional theory (DFT) calculations, laying a foundation for the development and application. Chemical equilibriums show that Fe(III) replacement favors the stoichiometric release of Cu(II) from Cu(II)-EDTA and the formation of Fe(III)-EDTA complex under acidic conditions. Experimentally, Cu(II) is removed (over 99.99%) and deeply purified (under 0.008 mg/L) under the optimal conditions, which is lower than the most stringent discharge standards of copper ions in electroplating effluent (<0.5 mg/L, China). DFT calculations reveal that DDTC could further precipitate the released free copper ions via the carbon disulfide (-C(=S)-S) chelating group while exhibiting a slight effect on the Fe(III) in Fe(III)-EDTA. Considering these results, the electronic structures of Cu(II) and Fe(III), as well as their interaction with EDTA and DDTC ligands, are discussed to understand the mechanism of Fe(III)/DDTC process. By introducing a low dosage of Fe(III), the DDTC could efficiently purify Cu(II) from the Cu(II)-EDTA acid wastewater and realize the near-zero discharge of metal pollutants in metal-organic complex wastewater. It is believed that the main findings may benefit the water pollution reduction and comprehensive recycling of metal resources.
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Affiliation(s)
- Mingjun Han
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan, 410083, China
| | - Jianyong He
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan, 410083, China
| | - Xin Wei
- Suzhou Dongfang Environmental Engineering Co., Ltd., Suzhou, Jiangsu, 215110, China
| | - Sai Li
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan, 410083, China
| | - Chenyang Zhang
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan, 410083, China; Key Laboratory of Hunan Province for Comprehensive Utilization of Complex Copper-Lead Zinc Associated Metal Resources, Hunan Research Institute for Nonferrous Metals, Changsha, 410100, China; State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming, 650093, China.
| | - Hongliang Zhang
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan, 410083, China
| | - Wei Sun
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan, 410083, China
| | - Tong Yue
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan, 410083, China
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Chen L, Maqbool T, Hou C, Fu W, Zhang X. Mechanistic study of oxidative removal of bisphenol A by pristine nanocatalyst Mn3O4/peroxymonosulfate. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.119882] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Photochemical Oxidation Process of Copper from Electroplating Wastewater: Process Performance and Kinetic Study. Processes (Basel) 2020. [DOI: 10.3390/pr8101276] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
An investigation of the process of ozone combined with ultraviolet radiation has been carried out in order to establish the kinetics for photochemical oxidation of copper (Cu) from electroplating wastewater. The effects of operating parameters, including initial Cu concentration, ozone dosage, UV irradiation intensity, and pH value on the photochemical oxidation of Cu have been studied comprehensively. The Cu concentration during the reaction was identified using atomic absorption spectroscopy (AAS) method. The solid product was analyzed using X-ray diffraction (XRD) and scanning electron microscope–energy-dispersive X-ray (SEM–EDX) methods. It was found that the UV-Ozone process has high performance on Cu removal compared to UV and Ozone processes due to the high production rate of HO• radicals. It was also found that the solid product from the UV-Ozone process was CuO monoclinic crystal phase. The initial Cu concentration, ozone dosage, and pH value were significantly affected the Cu removal efficiency. On the other hand, the UV irradiation intensity was not significant; however, it has responsibility in promoting the ozone photolysis. The kinetics model for the photochemical oxidation of Cu was established following the first-order kinetic model. Furthermore, the reaction mechanism was also developed.
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Yu X, Tang Y, Pan J, Shen L, Begum A, Gong Z, Xue J. Physico-chemical processes. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2020; 92:1751-1769. [PMID: 32762110 DOI: 10.1002/wer.1430] [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: 04/30/2020] [Revised: 07/19/2020] [Accepted: 07/30/2020] [Indexed: 06/11/2023]
Abstract
By summarizing 187 relevant research articles published in 2019, the review is focused on the research progress of physicochemical processes for wastewater treatment. This review divides into two sections, physical processes and chemical processes. The physical processes section includes three sub-sections, that is, adsorption, granular filtration, and dissolved air flotation, whereas the chemical processes section has five sub-sections, that is, coagulation/flocculation, advanced oxidation processes, electrochemical, capacitive deionization, and ion exchange. PRACTITIONER POINTS: Totally 187 research articles on wastewater treatment have been reviewed and discussed. The review has two major sections with eight sub-topics.
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Affiliation(s)
- Xiaoxuan Yu
- China Construction Science & Technology Co. Ltd., Shenzhen Branch, Shenzhen, China
| | - Yao Tang
- Ebo Environmental Protection Group, Guangzhou, China
| | - Jian Pan
- Hangzhou Bertzer Catalyst Co., Ltd., Hangzhou, China
- Environmental Technology Innovation Center of Jiande, Hangzhou, China
| | - Lin Shen
- Department of Civil and Environmental Engineering, University of Waterloo, Waterloo, ON, Canada
| | - Afruza Begum
- Environmental Systems Engineering, Faculty of Engineering and Applied Science, University of Regina, Regina, SK, Canada
| | | | - Jinkai Xue
- Environmental Systems Engineering, Faculty of Engineering and Applied Science, University of Regina, Regina, SK, Canada
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Song W, Li J, Wang Z, Fu C, Zhang X, Feng J, Xu Z, Song Q. Degradation of bisphenol A by persulfate coupled with dithionite: Optimization using response surface methodology and pathway. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 699:134258. [PMID: 31522056 DOI: 10.1016/j.scitotenv.2019.134258] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Revised: 08/23/2019] [Accepted: 09/02/2019] [Indexed: 06/10/2023]
Abstract
The degradation efficiency of bisphenol A (BPA) was investigated in the process of persulfate (PS) coupled with dithionite (DTN) as a function of concentration of BPA, PS, DTN and solution pH. A simple response surface methodology (RSM) based on central composite design (CCD) was employed to determine the influence of individual and interaction of above variables and the optimum processing parameters. It is satisfactory of a quadratic model with low probabilities (<0.0001) at a confidence level of 95% to predict the BPA degradation efficiency. The model was well fitted to the actual data and the correlation coefficients of R2 and R2-adj were 0.9270 and 0.8885, respectively. In addition, the obtained optimum conditions for BPA degradation were 1.79 μM, 131.77 μM, 93.64 μM for BPA, PS, DTN and pH = 3.62, respectively. It achieved a degradation efficiency >90% within 150 min. Moreover, the trapping experiment of active species demonstrated that SO4·- and ·OH were the dominant species and natural water matrix showed an obvious inhibition effect on BPA degradation. The BPA degradation pathway was predicted based on GC-MS results in this study.
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Affiliation(s)
- Wei Song
- School of Civil and Environmental Engineering, Shenzhen Key Laboratory of Water Resource Application and Environmental Pollution Control, Harbin Institute of Technology, Shenzhen, Shenzhen 518055, PR China
| | - Ji Li
- School of Civil and Environmental Engineering, Shenzhen Key Laboratory of Water Resource Application and Environmental Pollution Control, Harbin Institute of Technology, Shenzhen, Shenzhen 518055, PR China
| | - Zhuoyue Wang
- School of Civil and Environmental Engineering, Shenzhen Key Laboratory of Water Resource Application and Environmental Pollution Control, Harbin Institute of Technology, Shenzhen, Shenzhen 518055, PR China
| | - Caixia Fu
- School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, PR China; Shenzhen Key Laboratory of Soil and Groundwater Pollution Control, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Shenzhen, Guangdong 518055, PR China
| | - Xiaolei Zhang
- School of Civil and Environmental Engineering, Shenzhen Key Laboratory of Water Resource Application and Environmental Pollution Control, Harbin Institute of Technology, Shenzhen, Shenzhen 518055, PR China.
| | - Jianpei Feng
- School of Civil and Environmental Engineering, Shenzhen Key Laboratory of Water Resource Application and Environmental Pollution Control, Harbin Institute of Technology, Shenzhen, Shenzhen 518055, PR China
| | - Zhiliang Xu
- School of Civil and Environmental Engineering, Shenzhen Key Laboratory of Water Resource Application and Environmental Pollution Control, Harbin Institute of Technology, Shenzhen, Shenzhen 518055, PR China
| | - Qi Song
- China Meheco Topfond Pharmaceutical Co., Ltd, Zhumadian, Henan 463000, PR China
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