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Yakamercan E, Aygün A, Simsek H. Antibiotic ciprofloxacin removal from aqueous solutions by electrochemically activated persulfate process: Optimization, degradation pathways, and toxicology assessment. J Environ Sci (China) 2024; 143:85-98. [PMID: 38644026 DOI: 10.1016/j.jes.2023.08.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 08/13/2023] [Accepted: 08/13/2023] [Indexed: 04/23/2024]
Abstract
Ciprofloxacin (CIP) is a commonly used antibiotic in the fluoroquinolone group and is widely used in medical and veterinary medicine disciplines to treat bacterial infections. When CIP is discharged into the sewage system, it cannot be removed by a conventional wastewater treatment plant because of its recalcitrant characteristics. In this study, boron-doped diamond anode and persulfate were used to degrade CIP in an aquatic solution by creating an electrochemically activated persulfate (EAP) process. Iron was added to the system as a coactivator and the process was called EAP+Fe. The effects of independent variables, including pH, Fe2+, persulfate concentration, and electrolysis time on the system were optimized using the response surface methodology. The results showed that the EAP+Fe process removed 94% of CIP under the following optimum conditions: A pH of 3, persulfate/Fe2+ concentration of 0.4 mmol/L, initial CIP concentration 30 mg/L, and electrolysis time of 12.64 min. CIP removal efficiency was increased from 65.10% to 94.35% by adding Fe2+ as a transition metal. CIP degradation products, 7 pathways, and 78 intermediates of CIP were studied, and three of those intermediates (m/z 298, 498, and 505) were reported. The toxicological analysis based on toxicity estimation software results indicated that some degradation products of CIP were toxic to targeted animals, including fathead minnow, Daphnia magna, Tetrahymena pyriformis, and rats. The optimum operation costs were similar in EAP and EAP+Fe processes, approximately 0.54 €/m3.
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Affiliation(s)
- Elif Yakamercan
- Environmental Engineering Department, Bursa Technical University, Bursa, Turkey
| | - Ahmet Aygün
- Environmental Engineering Department, Bursa Technical University, Bursa, Turkey.
| | - Halis Simsek
- Agricultural and Biological Engineering Department, Purdue University, West Lafayette, IN, USA
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2
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Zhang Y, Zhao W, Zhang X, Wang S. Highly efficient targeted adsorption and catalytic degradation of ciprofloxacin by a novel molecularly imprinted bimetallic MOFs catalyst for persulfate activation. CHEMOSPHERE 2024; 357:141894. [PMID: 38615958 DOI: 10.1016/j.chemosphere.2024.141894] [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: 01/06/2024] [Revised: 03/19/2024] [Accepted: 04/01/2024] [Indexed: 04/16/2024]
Abstract
Given the presence of emerging pollutants at low concentrations in water bodies, which are inevitably affected by background substances during the removal process. In this study, we synthesized molecularly imprinted catalysts (Cu/Ni-MOFs@MIP) based on bimetallic metal-organic frameworks for the targeted degradation of ciprofloxacin (CIP) in advanced oxidation processes (AOPs). The electrostatic interaction and functional group binding of CIP with specific recognition sites on Cu/Ni-MOFs@MIP produced excellent selective recognition (Qmax was 14.82 mg g-1), which enabled the active radicals to approach and remove the contaminants faster. Electron paramagnetic resonance (EPR) analysis and quenching experiments revealed the coexistence of ∙OH, SO42-, and 1O2, with ∙OH dominating the system. Based on experimental and theoretical calculations, the reaction sites of CIP were predicted and the possible degradation pathways and mechanisms of Cu/Ni-MOFs@MIP/PMS systems were proposed. This study opens up a new platform for the targeted removal of target pollutants in AOPs.
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Affiliation(s)
- Yang Zhang
- School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, PR China
| | - Wenqian Zhao
- School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, PR China
| | - Xiaodong Zhang
- School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, PR China.
| | - Shuguang Wang
- School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, PR China
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3
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Voigt M, Dluziak JM, Wellen N, Jaeger M. Mechanistic study of the electrochemical oxidation of fluoroquinolones: Ciprofloxacin, danofloxacin, enoxacin, levofloxacin and lomefloxacin. CHEMOSPHERE 2024; 355:141763. [PMID: 38522672 DOI: 10.1016/j.chemosphere.2024.141763] [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: 01/14/2024] [Revised: 03/15/2024] [Accepted: 03/19/2024] [Indexed: 03/26/2024]
Abstract
The fluoroquinolones ciprofloxacin, danofloxacin, enoxacin, levofloxacin and lomefloxacin, occur in water bodies worldwide and therefore pose a threat to the aquatic environment. Advanced purification procedures, such as electrochemical oxidation, may act as a remedy since they contribute to eliminating contaminants and prevent micropollutants from entering open water bodies. By electrochemical treatment in a micro-flow reactor equipped with a boron-doped diamond (BDD) electrode, the fluoroquinolones were efficiently degraded. A total of 15 new products were identified using high-performance high-resolution chromatography coupled with high-resolution multifragmentation mass spectrometry. The ecotoxicity of the emerging transformation products was estimated through in silico quantitative structure activity relationship analysis. Almost all transformation products were predicted less ecotoxic than the initial compounds. The fluoroquinolone degradation followed three major mechanisms depending on the voltage during the electrochemical oxidation. At approximately 1 V, the reactions started with the elimination of molecular hydrogen from the piperazine moiety. At approx. 1.25 V, methyl and methylene groups were eliminated. At 1.5 V, hydroxyl radicals, generated at the BDD electrode, led to substitution at the piperazine ring. This novel finding of the three reactions depending on voltage contributes to the mechanistic understanding of electrochemical oxidation as potential remedy against fluoroquinolones in the aquatic environment.
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Affiliation(s)
- Melanie Voigt
- Niederrhein University of Applied Sciences, Department of Chemistry and ILOC, Frankenring 20, D-47798, Krefeld, Germany
| | - Jean-Michel Dluziak
- Niederrhein University of Applied Sciences, Department of Chemistry and ILOC, Frankenring 20, D-47798, Krefeld, Germany
| | - Nils Wellen
- Niederrhein University of Applied Sciences, Department of Chemistry and ILOC, Frankenring 20, D-47798, Krefeld, Germany
| | - Martin Jaeger
- Niederrhein University of Applied Sciences, Department of Chemistry and ILOC, Frankenring 20, D-47798, Krefeld, Germany.
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4
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Tang X, Jin Z, Zou R, Zhu Y, Yao X, Li M, Song S, Liu S, Zeng T. Sustainable Electrochemical Activation of Self-Generated Persulfate for the Degradation of Endocrine Disruptors: Kinetics, Performances, and Mechanisms. TOXICS 2024; 12:156. [PMID: 38393251 PMCID: PMC10893448 DOI: 10.3390/toxics12020156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/07/2024] [Accepted: 02/15/2024] [Indexed: 02/25/2024]
Abstract
This study presents an electrolysis system utilizing a novel self-circulation process of sulfate (SO42-) and persulfate (S2O82-) ions based on a boron-doped diamond (BDD) anode and an activated carbon fiber (ACF) cathode, which is designed to enable electrochemical remediation of environmental contaminants with reduced use of chemical reagents and minimized residues. The production of S2O82- and hydrogen peroxide (H2O2) on the BDD anode and ACF cathode, respectively, is identified as the source of active radicals for the contaminant degradation. The initiator, sulfate, is identified by comparing the degradation efficiency in NaSO4 and NaNO3 electrolytes. Quenching experiments and electron paramagnetic resonance (EPR) spectroscopy confirmed that the SO4-· and ·OH generated on the ACF cathode are the main reactive radicals. A comparison of the degradation efficiency and the generated S2O82-/H2O2 of the divided/undivided electrolysis system is used to demonstrate the superiority of the synergistic effect between the BDD anode and ACF cathode. This work provides evidence of the effectiveness of the philosophy of "catalysis in lieu of supplementary chemical agents" and sheds light on the mechanism of the generation and transmission of reactive species in the BDD and ACF electrolysis system, thereby offering new perspectives for the design and optimization of electrolysis systems.
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Affiliation(s)
- Xiaofeng Tang
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310032, China; (X.T.); (Z.J.); (R.Z.); (Y.Z.); (X.Y.); (M.L.); (S.S.)
| | - Zhiquan Jin
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310032, China; (X.T.); (Z.J.); (R.Z.); (Y.Z.); (X.Y.); (M.L.); (S.S.)
| | - Rui Zou
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310032, China; (X.T.); (Z.J.); (R.Z.); (Y.Z.); (X.Y.); (M.L.); (S.S.)
| | - Yi Zhu
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310032, China; (X.T.); (Z.J.); (R.Z.); (Y.Z.); (X.Y.); (M.L.); (S.S.)
| | - Xia Yao
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310032, China; (X.T.); (Z.J.); (R.Z.); (Y.Z.); (X.Y.); (M.L.); (S.S.)
| | - Mengxuan Li
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310032, China; (X.T.); (Z.J.); (R.Z.); (Y.Z.); (X.Y.); (M.L.); (S.S.)
| | - Shuang Song
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310032, China; (X.T.); (Z.J.); (R.Z.); (Y.Z.); (X.Y.); (M.L.); (S.S.)
| | - Shuangliu Liu
- Chinese Academy of Environmental Planning, Beijing 100012, China
| | - Tao Zeng
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310032, China; (X.T.); (Z.J.); (R.Z.); (Y.Z.); (X.Y.); (M.L.); (S.S.)
- Shaoxing Research Institute, Zhejiang University of Technology, Shaoxing 312000, China
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Vinayagam V, Palani KN, Ganesh S, Rajesh S, Akula VV, Avoodaiappan R, Kushwaha OS, Pugazhendhi A. Recent developments on advanced oxidation processes for degradation of pollutants from wastewater with focus on antibiotics and organic dyes. ENVIRONMENTAL RESEARCH 2024; 240:117500. [PMID: 37914013 DOI: 10.1016/j.envres.2023.117500] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 10/13/2023] [Accepted: 10/23/2023] [Indexed: 11/03/2023]
Abstract
The existence of various pollutants in water environment contributes to global pollution and poses significant threats to humans, wildlife, and other living beings. The emergence of an effective, realistic, cost-effective, and environmentally acceptable technique to treat wastewater generated from different sectors is critical for reducing pollutant accumulation in the environment. The electrochemical advanced oxidation method is a productive technology for treating hazardous effluents because of its potential benefits such as lack of secondary pollutant and high oxidation efficiency. Recent researches on advanced oxidation processes (AOPs) in the period of 2018-2022 are highlighted in this paper. This review emphasizes on recent advances in electro-oxidation (EO), ozone oxidation, sonolysis, radiation, electro-Fenton (EF), photolysis and photocatalysis targeted at treating pharmaceuticals, dyes and pesticides polluted effluents. In the first half of the review, the concept of the AOPs are discussed briefly. Later, the influence of increasing current density, pH, electrode, electrolyte and initial concentration of effluents on degradation are discussed. Lastly, previously reported designs of electrochemical reactors, as well as data on intermediates generated and energy consumption during the electro oxidation and Fenton processes are discussed. According to the literature study, the electro-oxidation technique is more appropriate for organic compounds, whilst the electro-Fenton technique appear to be more appropriate for more complex molecules.
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Affiliation(s)
- Vignesh Vinayagam
- Department of Chemical Engineering, Sri Venkateswara College of Engineering, Chennai, Tamil Nadu, 602117, India
| | | | - Sudha Ganesh
- Department of Chemical Engineering, Sri Venkateswara College of Engineering, Chennai, Tamil Nadu, 602117, India
| | - Siddharth Rajesh
- Department of Chemical Engineering, Sri Venkateswara College of Engineering, Chennai, Tamil Nadu, 602117, India
| | - Vedha Varshini Akula
- Department of Chemical Engineering, Sri Venkateswara College of Engineering, Chennai, Tamil Nadu, 602117, India
| | - Ramapriyan Avoodaiappan
- Department of Chemical Engineering, Sri Venkateswara College of Engineering, Chennai, Tamil Nadu, 602117, India
| | - Omkar Singh Kushwaha
- Department of Chemical Engineering, Indian Institute of Technology Madras, Chennai, Tamil Nadu, 600036, India
| | - Arivalagan Pugazhendhi
- School of Engineering, Lebanese American University, Byblos, Lebanon; Centre for Herbal Pharmacology and Environmental Sustainability, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam, 603103, Tamil Nadu, India.
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Farissi S, Abubakar GA, Akhilghosh KA, Muthukumar A, Muthuchamy M. Sustainable application of electrocatalytic and photo-electrocatalytic oxidation systems for water and wastewater treatment: a review. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:1447. [PMID: 37945768 DOI: 10.1007/s10661-023-12083-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: 06/06/2023] [Accepted: 10/31/2023] [Indexed: 11/12/2023]
Abstract
Wastewater treatment and reuse have risen as a solution to the water crisis plaguing the world. Global warming-induced climate change, population explosion and fast depletion of groundwater resources are going to exacerbate the present global water problems for the forthcoming future. In this scenario, advanced electrochemical oxidation process (EAOP) utilising electrocatalytic (EC) and photoelectrocatalytic (PEC) technologies have caught hold of the interest of the scientific community. The interest stems from the global water management plans to scale down centralised water and wastewater treatment systems to decentralised and semicentralised treatment systems for better usage efficiency and less resource wastage. In an age of rising water pollution caused by contaminants of emerging concern (CECs), EC and PEC systems were found to be capable of optimal mineralisation of these pollutants rendering them environmentally benign. The present review treads into the conventional electrochemical treatment systems to identify their drawbacks and analyses the scope of the EC and PEC to mitigate them. Probable electrode materials, potential catalysts and optimal operational conditions for such applications were also examined. The review also discusses the possible retrospective application of EC and PEC as point-of-use and point-of-entry treatment systems during the transition from conventional centralised systems to decentralised and semi-centralised water and wastewater treatment systems.
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Affiliation(s)
- Salman Farissi
- Department of Environmental Science, Central University of Kerala, Thejaswini Hills, Periye, Kasaragod-671320, Kerala, India
| | - Gado Abubakar Abubakar
- Department of Physics, Kebbi State University of Science and Technology, Aleiro, Kebbi State, Nigeria
| | | | - Anbazhagi Muthukumar
- Department of Environmental Science, Central University of Kerala, Thejaswini Hills, Periye, Kasaragod-671320, Kerala, India
| | - Muthukumar Muthuchamy
- Department of Environmental Science, Central University of Kerala, Thejaswini Hills, Periye, Kasaragod-671320, Kerala, India.
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7
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Peralta-Reyes E, Regalado-Méndez A, Chimeo-Sánchez AA, Robles-Gómez EE, Natividad R. Electrochemical degradation of ciprofloxacin through a DoE-driven optimization in a filter-press type reactor under batch recirculation mode. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2023; 88:1294-1316. [PMID: 37771228 PMCID: wst_2023_279 DOI: 10.2166/wst.2023.279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/30/2023]
Abstract
In this work, the electrochemical degradation of ciprofloxacin (CIP) was studied in a filter-press-type reactor without division in a batch recirculation manner. For this purpose, two boron-doped diamond (BDD) electrodes (as cathode and anode) were employed. Also, the optimal operating conditions were found by response surface methodology (RSM) following a central composite face-centered design with three factors, namely current intensity (i), initial pH (pH0), and initial concentration ([C]0) with two responses, namely remotion efficiency (η) and operating cost. Optimal operating conditions were i = 3 A, pH0 = 8.49, and [C]0 = 33.26 mg L-1 within an electrolysis time of 5 h, leading to a maximum removal efficiency of 93.49% with a minimum operating cost of $0.013 USD L-1. Also, a TOC analysis shows an 80% of mineralization extent with an energy consumption of 5.11 kWh g-1 TOC. Furthermore, the CIP degradation progress was followed by mass spectrometry (LC/MS) and a degradation pathway is proposed.
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Affiliation(s)
- Ever Peralta-Reyes
- Investigation Laboratories, Universidad del Mar, Puerto Ángel, Oaxaca 70902, México E-mail:
| | | | | | - Edson E Robles-Gómez
- Investigation Laboratories, Universidad del Mar, Puerto Ángel, Oaxaca 70902, México
| | - Reyna Natividad
- Chemical Engineering Laboratory, Centro Conjunto de Investigación en Química Sustentable, UAEMex-UNAM, Universidad Autónoma del Estado de México, Estado de México, Toluca 50200, México
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8
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Li Z, Wang J, Chang J, Fu B, Wang H. Insight into advanced oxidation processes for the degradation of fluoroquinolone antibiotics: Removal, mechanism, and influencing factors. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 857:159172. [PMID: 36208734 DOI: 10.1016/j.scitotenv.2022.159172] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 09/26/2022] [Accepted: 09/28/2022] [Indexed: 06/16/2023]
Abstract
The enrichment and transport of antibiotics in the environments pose many potential hazards to aquatic animals and humans, which has become one of the public health challenges worldwide. As a widely used class of antibiotics, fluoroquinolones (FQs) generally accumulated in the environments as traditional sewage treatment plants cannot completely remove them. Advanced oxidation processes (AOPs) have been shown to be a promising method for the abatement of antibiotic contamination. In this review, influencing factors and relevant mechanisms of FQs removal by various AOPs were summarized. Compared with other AOPs, photocatalytic ozone may be considered as a cost-effective method for degrading FQs. Finally, the benefits and application restrictions of AOPs were discussed, along with proposed research directions to provide new insights into the control of FQs pollutant via AOPs in practical applications.
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Affiliation(s)
- Zonglin Li
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Siping Rd 1239, Shanghai 200092, China
| | - Junsen Wang
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Siping Rd 1239, Shanghai 200092, China
| | - Jiajun Chang
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Siping Rd 1239, Shanghai 200092, China
| | - Bomin Fu
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Siping Rd 1239, Shanghai 200092, China; Macao Environmental Research Institute, Macau University of Science and Technology, Macao 999078, China
| | - Hongtao Wang
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Siping Rd 1239, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, UNEP-TONGJI Institute of Environment for Sustainable Development, Shanghai 200092, China.
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Yuan Q, Qu S, Li R, Huo ZY, Gao Y, Luo Y. Degradation of antibiotics by electrochemical advanced oxidation processes (EAOPs): Performance, mechanisms, and perspectives. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 856:159092. [PMID: 36174705 DOI: 10.1016/j.scitotenv.2022.159092] [Citation(s) in RCA: 30] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 09/22/2022] [Accepted: 09/24/2022] [Indexed: 06/16/2023]
Abstract
Global consumption and discharge of antibiotics have led to the rapid development and spread of bacterial antibiotic resistance. Among treatment strategies, electrochemical advanced oxidation processes (EAOPs) are gaining popularity for treating water/wastewater containing antibiotics due to their high efficiency and easiness of operation. In this review, we summarize various forms of EAOPs that contribute to antibiotic degradation, including common electrochemical oxidation (EO), electrolyte enhanced EO, electro-Fenton (EF) processes, EF-like process, and EAOPs coupling with other processes. Then we assess the performance of various EAOPs in antibiotic degradation and discuss the influence of key factors, including electrode, initial concentration and type of antibiotic, operation conditions, electrolyte, and water quality. We also review mechanisms and degradation pathways of various antibiotics degradation by EAOPs, and address the species and toxicity of intermediates produced during antibiotics treatment. Finally, we highlight challenges and critical research needs to facilitate the application of EAOPs in antibiotic treatment.
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Affiliation(s)
- Qingbin Yuan
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China; School of the Environment, Nanjing Tech University, Nanjing 211816, PR China.
| | - Siyao Qu
- School of the Environment, Nanjing Tech University, Nanjing 211816, PR China
| | - Rong Li
- School of the Environment, Nanjing Tech University, Nanjing 211816, PR China
| | - Zheng-Yang Huo
- School of Environment and Natural Resources, Renmin University of China, Beijing 100872, PR China.
| | - Yan Gao
- School of the Environment, Nanjing Tech University, Nanjing 211816, PR China.
| | - Yi Luo
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China
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Li S, Wu Y, Zheng H, Li H, Zheng Y, Nan J, Ma J, Nagarajan D, Chang JS. Antibiotics degradation by advanced oxidation process (AOPs): Recent advances in ecotoxicity and antibiotic-resistance genes induction of degradation products. CHEMOSPHERE 2023; 311:136977. [PMID: 36309060 DOI: 10.1016/j.chemosphere.2022.136977] [Citation(s) in RCA: 36] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 10/09/2022] [Accepted: 10/20/2022] [Indexed: 06/16/2023]
Abstract
Antibiotic contamination could cause serious risks of ecotoxicity and resistance gene induction. Advanced oxidation processes (AOPs) such as Fenton, photocatalysis, activated persulfate, electrochemistry and other AOPs technologies have been proven effective in the degradation of high-risk, refractory organic pollutants such as antibiotics. However, due to the limited mineralization ability, a large number of degradation intermediates will be produced in the oxidation process. The residual or undiscovered ecological risks of degradation products are potential safety hazards and problems necessitating comprehensive studies. In-depth investigations especially on the full assessments of ecotoxicity and resistance genes induction capability of antibiotic degradation products are important issues in reducing the environmental problems of antibiotics. Therefore, this review presents an overview of the current knowledge on the efficiency of different AOPs systems in reducing antibiotics toxicity and antibiotic resistance.
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Affiliation(s)
- Shuo Li
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161006, China; Urban Water Resources Development and Northern National Engineering Research Center, Harbin, 150090, China; School of Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Yanan Wu
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161006, China
| | - Heshan Zheng
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161006, China.
| | - Hongbin Li
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161006, China
| | - Yongjie Zheng
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161006, China
| | - Jun Nan
- Urban Water Resources Development and Northern National Engineering Research Center, Harbin, 150090, China; School of Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Jun Ma
- Urban Water Resources Development and Northern National Engineering Research Center, Harbin, 150090, China; School of Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Dillirani Nagarajan
- Department of Chemical Engineering, National Cheng-Kung University, Tainan, Taiwan
| | - Jo-Shu Chang
- Department of Chemical Engineering, National Cheng-Kung University, Tainan, Taiwan; Department of Chemical and Materials Engineering, Tunghai University, Taichung, 407, Taiwan; Research Center for Smart Sustainable Circular Economy, Tunghai University, Taichung, 407, Taiwan; Department of Chemical Engineering and Materials Science, Yuan Ze University, Chung-Li, Taiwan.
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11
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Chen X, Zhou Y, Li J, Pillai SC, Bolan N, He J, Li N, Xu S, Chen X, Lin Q, Wang H. Activated peroxydisulfate by sorghum straw-based biochar for enhanced tartrazine degradation: Roles of adsorption and radical/nonradical processes. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 316:120665. [PMID: 36395910 DOI: 10.1016/j.envpol.2022.120665] [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: 09/15/2022] [Revised: 10/29/2022] [Accepted: 11/12/2022] [Indexed: 06/16/2023]
Abstract
Biochar obtained from biomass waste through pyrolysis has significant potential in wastewater treatment due to its large specific surface area and multi-functional active sites. In current study, sorghum straw (SS) was pyrolyzed to prepare various biochar under nitrogen atmosphere. Adsorption kinetics of prepared biochar toward tartrazine (TTZ) was systematically investigated, and the biochar was also characterized by using multiple techniques to explore the contribution of physicochemical properties to adsorption. Then, the biochar with optimum TTZ adsorption performance, was also applied as a catalyst for peroxydisulfate (PDS) activation to degrade TTZ. Factors including PDS concentration, solution pH, and reaction temperature were examined. The optimized degradation rate constant of TTZ (1.1627 min-1) was achieved under the conditions at 2 mM PDS, pH of 3, and 23 °C. In addition, the free radical trapping experiments and EPR spectra revealed that the reactive substances of electron (e-), 1O2, SO4•-, O2•-, and •OH contributed to TTZ degradation. Density Functional Theory (DFT) also concluded that the atoms C(6), O(12), N(16), N(17), C(18) and N(22) in TTZ molecule showed larger f0 values which are vulnerable to radical attack. Therefore, the synergistic mechanism embodying adsorption and radical/non-radical processes were proposed. Besides, the degradation pathways of TTZ were identified with the aid of HPLC/MS technique, indicating that multiple reaction processes containing the symmetrical cleavage of azo bonds, the asymmetrical cleavage of C-N, desulfonation, and benzene-like structure cracking were involved. Therefore, this study provides a simple and effective catalytic system for TTZ degradation, and also realizes the resource utilization of solid waste.
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Affiliation(s)
| | - Yu Zhou
- Foshan University, Foshan, 528225, China
| | - Jiesen Li
- Foshan University, Foshan, 528225, China; Department of Research and Development, Guangzhou Ginpie Technology Co., Ltd., Guangzhou, 510670, China
| | - Suresh C Pillai
- Nanotechnology and Bio-Engineering Research Group and the Health and Biomedical (HEAL) Research Centre, Atlantic Technological University, ATU Sligo, Ash Lane, Sligo, F91 YW50, Ireland
| | - Nanthi Bolan
- School of Agriculture and Environment, The University of Western Australia, 6001, Perth, WA, Australia; The UWA Institute of Agriculture, The University of Western Australia, 6001, Perth, WA, Australia
| | - Juhua He
- Foshan University, Foshan, 528225, China
| | - Ning Li
- Foshan University, Foshan, 528225, China.
| | - Song Xu
- Foshan University, Foshan, 528225, China
| | - Xin Chen
- Foshan University, Foshan, 528225, China
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12
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Duan P, Qian C, Wang X, Jia X, Jiao L, Chen Y. Fabrication and characterization of Ti/polyaniline-Co/PbO 2-Co for efficient electrochemical degradation of cephalexin in secondary effluents. ENVIRONMENTAL RESEARCH 2022; 214:113842. [PMID: 35843278 DOI: 10.1016/j.envres.2022.113842] [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: 11/02/2021] [Revised: 03/06/2022] [Accepted: 07/04/2022] [Indexed: 06/15/2023]
Abstract
The traditional interlayer of PbO2 electrode possessed many problems, such as short service lifetime and limited specific surface area. Herein, a novel and efficient Ti/polyaniline-Co/PbO2-Co electrode was conctructed employing cyclic voltammetry to introduce a Co-doped polyaniline interlayer and anodic electrodeposition to synthetize a β-PbO2-Co active layer. Compared with pristine PbO2 electrode, Ti/polyaniline-Co/PbO2-Co exhibited more compact crystalline shape and higher active sites amounts. Pratically, the electrochemical degradation of 5 mg L-1 cephalexin in real secondary effluents was effectively achieved by the novel anode with 87.42% cephalexin removal and 71.8% COD mineralization after 120 min of 15 mA cm-2 electrolysis. The hydroxyl radical production and electrochemical stability were increased by 3.16 and 3.27 times respectively. The cephalexin degradation pathway was investigated by combining a density functional theory-based theoretical approach and LC-QTrap-MS/MS. The most likely cleavage point of the β-lactam ring was the O=C-N bond, whose attack would produce small molecular compounds containing the thiazole and 4, 6-thiazine rings. Further oxidation produced inorganic ions; quantitative investigations indicated the amino groups to undergo decomposition to form aqueous NH4+, which was further oxidized to NO3-. The accumulation of NO3- and SO42-, combined with a decrease in toxicity toward Escherichia coli, demonstrated the efficient mineralization of cephalexin on the Ti/polyaniline-Co/PbO2-Co electrode.
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Affiliation(s)
- Pingzhou Duan
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China; Institute of Water Environment Research, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Chang Qian
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China; Institute of Water Environment Research, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Xiao Wang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China; Institute of Water Environment Research, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Xiaobo Jia
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China; Institute of Water Environment Research, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China; College of Water Science, Beijing Normal University, Beijing, 100875, China
| | - Lixin Jiao
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China; Institute of Water Environment Research, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China.
| | - Yu Chen
- Baoding Institute of Environmental Science, Baoding, 071000, China
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13
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Zhang ZH, Xu JY, Li T, Gao SR, Yang XL. Bio-electrocatalytic degradation of tetracycline by stainless-steel mesh based molybdenum carbide electrode. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:80520-80531. [PMID: 35723823 DOI: 10.1007/s11356-022-21207-9] [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: 03/19/2022] [Accepted: 05/27/2022] [Indexed: 06/15/2023]
Abstract
In order to treat antibiotic wastewater with high efficiency and low energy consumption, this study proposed the coupling of electrocatalytic degradation and biodegradation, and explored a new modified electrocatalytic material in the coupling system. The stainless-steel mesh based molybdenum carbide (SS-Mo2C) was prepared by a low-cost impregnation method and showed superior electrocatalytic degradation ability for tetracycline (TC) when used as the anode in the electrocatalytic system. The degradation rate of TC with SS-Mo2C anode was 17 times higher than that of stainless-steel (SS) anode, and TC removal efficiency was 77% higher than that of SS anode. The electrocatalytic system prior to the biological reactor was proven to be the optimal coupling method. The external coupling system achieved a significantly higher TC removal (87.0%) than that of the internal coupling system (65.3%) and SS-Mo2C showed an excellent repeatable and stable performance. The fewer and smaller molecular weight intermediates products were observed in bio-electrocatalytic system, especially in the external coupling system. Alpha diversity analysis further confirmed that bio-electrocatalytic system increased the diversity of the microbial community. The stainless-steel mesh based molybdenum carbide (SS-Mo2C), which was prepared by a simple and low-cost impregnation method, significantly improved the electrocatalytic activity of anode, thus contributing to tetracycline removal in the bio-electrocatalytic system, especially in the external coupling system.
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Affiliation(s)
- Zhi-Hao Zhang
- School of Civil Engineering, Southeast University, Dong Nan Da Xue Road 2, Nanjing, 211189, People's Republic of China
| | - Jia-Ying Xu
- School of Civil Engineering, Southeast University, Dong Nan Da Xue Road 2, Nanjing, 211189, People's Republic of China
| | - Tao Li
- School of Civil Engineering, Southeast University, Dong Nan Da Xue Road 2, Nanjing, 211189, People's Republic of China
| | - Shi-Ru Gao
- School of Civil Engineering, Southeast University, Dong Nan Da Xue Road 2, Nanjing, 211189, People's Republic of China
| | - Xiao-Li Yang
- School of Civil Engineering, Southeast University, Dong Nan Da Xue Road 2, Nanjing, 211189, People's Republic of China.
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14
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Electrochemical and spectroscopic evaluation of 6-MP and its interaction with carbon dots and dsDNA. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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15
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Integrated Electro-Ozonation and Fixed-Bed Column for the Simultaneous Removal of Emerging Contaminants and Heavy Metals from Aqueous Solutions. SEPARATIONS 2022. [DOI: 10.3390/separations9100276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
In the current study, an integrated physiochemical method was utilized to remove tonalide (TND) and dimethyl phthalate (DMP) (as emerging contaminants, ECs), and nickel (Ni) and lead (Pb) (as heavy metals), from synthetic wastewater. In the first step of the study, pH, current (mA/cm2), and voltage (V) were set to 7.0, 30, and 9, respectively; then the removal of TND, DMP, Ni, and Pb with an electro-ozonation reactor was optimized using response surface methodology (RSM). At the optimum reaction time (58.1 min), ozone dosage (9.4 mg L−1), initial concentration of ECs (0.98 mg L−1), and initial concentration of heavy metals (28.9 mg L−1), the percentages of TND, DMP, Ni, and Pb removal were 77.0%, 84.5%, 59.2%, and 58.2%, respectively. For the electro-ozonation reactor, the ozone consumption (OC) ranged from 1.1 kg to 3.9 kg (kg O3/kg Ecs), and the specific energy consumption (SEC) was 6.95 (kWh kg−1). After treatment with the optimum electro-ozonation parameters, the synthetic wastewater was transferred to a fixed-bed column, which was filled with a new composite adsorbent (named BBCEC), as the second step of the study. BBCEC improved the efficacy of the removal of TND, DMP, Ni, and Pb to more than 92%.
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16
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Li S, Tong Y, Dong H, Lu J, Niu J. Formation of stable imine intermediates in the coexistence of sulfamethoxazole and humic acid by electrochemical oxidation. JOURNAL OF HAZARDOUS MATERIALS 2022; 427:128166. [PMID: 34996000 DOI: 10.1016/j.jhazmat.2021.128166] [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: 10/21/2021] [Revised: 12/12/2021] [Accepted: 12/26/2021] [Indexed: 06/14/2023]
Abstract
The electrochemical degradation performance of sulfamethoxazole (SMX) was studied in the presence of humic acid (HA) by using a Ti/Ti4O7/β-PbO2 anode. The electrochemical degradation efficiency of SMX decreased from 93.4% to 45.8% in 50 min after the addition of 25 mg L-1 HA. The pseudo-first-order kinetic rate constant decreased by 71.4%, and the EEO value increased from 63.8 Wh L-1 to 90.9 Wh L-1. HA and its degradation intermediates could compete for free radicals, especially for ·OH, with SMX. The analytical results obtained using UPLC-ESI-Q-TOF-MS showed that 18 degradation intermediates were identified in the coexistence of SMX and HA. Four imine intermediates were formed through the reactions between the aniline moieties of SMX and quinone groups in the HA structure through covalent bonds. Furthermore, the relative abundances of the intermediates demonstrated that the imine intermediates were complex and stable during electrochemical degradation.
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Affiliation(s)
- Suxin Li
- School of Chemistry and Chemical Engineering/Key Laboratory of Environmental Monitoring and Pollutant Control of Xinjiang Bingtuan, Shihezi University, Shihezi 832003, China
| | - Yanbin Tong
- School of Chemistry and Chemical Engineering/Key Laboratory of Environmental Monitoring and Pollutant Control of Xinjiang Bingtuan, Shihezi University, Shihezi 832003, China
| | - Hongyu Dong
- School of Chemistry and Chemical Engineering/Key Laboratory of Environmental Monitoring and Pollutant Control of Xinjiang Bingtuan, Shihezi University, Shihezi 832003, China
| | - Jianjiang Lu
- School of Chemistry and Chemical Engineering/Key Laboratory of Environmental Monitoring and Pollutant Control of Xinjiang Bingtuan, Shihezi University, Shihezi 832003, China
| | - Junfeng Niu
- School of Chemistry and Chemical Engineering/Key Laboratory of Environmental Monitoring and Pollutant Control of Xinjiang Bingtuan, Shihezi University, Shihezi 832003, China.
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17
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Man S, Zeng X, Yin Z, Yang H, Bao H, Xu K, Wang L, Ge X, Mo Z, Yang W, Li X. Preparation of a novel Ce and Sb co-doped SnO2 nanoflowers electrode by a two-step (hydrothermal and thermal decomposition) method for organic pollutants electrochemical degradation. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140066] [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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18
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Jiang B, Shen Y, Lu X, Du Y, Jin N, Li G, Zhang D, Xing Y. Toxicity assessment and microbial response to soil antibiotic exposure: differences between individual and mixed antibiotics. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2022; 24:460-473. [PMID: 35166274 DOI: 10.1039/d1em00405k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Increasing amounts of antibiotics are introduced into soils, raising great concerns on their ecotoxicological impacts on the soil environment. This work investigated the individual and joint toxicity of three antibiotics, tetracycline (TC), sulfonamide (SD) and erythromycin (EM) via a whole-cell bioreporter assay. TC, SD and EM in aqueous solution demonstrated cytotoxicity, whilst soil exposure showed genotoxicity, indicating that soil particles possibly affected the bioavailability of antibiotics. Toxicity of soils exposed to TC, SD and EM changed over time, demonstrating cytotoxic effects within 14-d exposure and genotoxic effects after 30 days. Joint toxicity of TC, SD and EM in soils instead showed cytotoxicity, suggesting a synergetic effect. High-throughput sequencing suggested that the soil microbial response to individual antibiotics and their mixtures showed a different pattern. Soil microbial community composition was more sensitive to TC, in which the abundance of Pseudomonas, Pirellula, Subdivision3_genera_incertae_sedis and Gemmata varied significantly. Microbial community functions were significantly shifted by EM amendments, including signal transduction mechanisms, cytoskeleton, cell wall/membrane/envelope biogenesis, transcription, chromatin structure and dynamics, and carbohydrate transport and metabolism. This work contributes to a better understanding of the ecological effects and potential risks of individual and joint antibiotics on the soil environment.
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Affiliation(s)
- Bo Jiang
- School of Energy and Environmental Engineering, University of Science & Technology Beijing, Beijing, 100083, PR China.
- Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, University of Science & Technology Beijing, Beijing, 100083, PR China
- National Environmental and Energy Science and Technology International Cooperation Base, University of Science & Technology Beijing, Beijing, 100083, PR China
- State Key Laboratory of Environmental Simulation and Pollution Control, Tsinghua University, Beijing, 100084, PR China
| | - Yaoxin Shen
- School of Energy and Environmental Engineering, University of Science & Technology Beijing, Beijing, 100083, PR China.
- Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, University of Science & Technology Beijing, Beijing, 100083, PR China
- National Environmental and Energy Science and Technology International Cooperation Base, University of Science & Technology Beijing, Beijing, 100083, PR China
| | - Xin Lu
- Petrochina North China Gas Marketing Company, Beijing, 100029, PR China
| | - Yufan Du
- School of Energy and Environmental Engineering, University of Science & Technology Beijing, Beijing, 100083, PR China.
- Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, University of Science & Technology Beijing, Beijing, 100083, PR China
- National Environmental and Energy Science and Technology International Cooperation Base, University of Science & Technology Beijing, Beijing, 100083, PR China
| | - Naifu Jin
- School of Environment, Tsinghua University, Beijing, 100084, PR China
- State Key Laboratory of Environmental Simulation and Pollution Control, Tsinghua University, Beijing, 100084, PR China
| | - Guanghe Li
- School of Environment, Tsinghua University, Beijing, 100084, PR China
- State Key Laboratory of Environmental Simulation and Pollution Control, Tsinghua University, Beijing, 100084, PR China
| | - Dayi Zhang
- School of Environment, Tsinghua University, Beijing, 100084, PR China
- State Key Laboratory of Environmental Simulation and Pollution Control, Tsinghua University, Beijing, 100084, PR China
| | - Yi Xing
- School of Energy and Environmental Engineering, University of Science & Technology Beijing, Beijing, 100083, PR China.
- Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, University of Science & Technology Beijing, Beijing, 100083, PR China
- National Environmental and Energy Science and Technology International Cooperation Base, University of Science & Technology Beijing, Beijing, 100083, PR China
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19
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Dos Santos AJ, Fortunato GV, Kronka MS, Vernasqui LG, Ferreira NG, Lanza MRV. Electrochemical oxidation of ciprofloxacin in different aqueous matrices using synthesized boron-doped micro and nano-diamond anodes. ENVIRONMENTAL RESEARCH 2022; 204:112027. [PMID: 34508772 DOI: 10.1016/j.envres.2021.112027] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 08/31/2021] [Accepted: 09/06/2021] [Indexed: 06/13/2023]
Abstract
The present work investigates the electrocatalytic performance of two different morphologies of boron doped-diamond film electrode (microcrystalline diamond - MCD, and nanocrystalline diamond - NCD) used in electrochemical oxidation for the removal of the antibiotic ciprofloxacin (CIP). A thorough study was conducted regarding the formation of the MCD and NCD films through the adjustment of methane in CH4/H2 gas mixture, and the two films were compared in terms of crystalline structure, apparent doping level, and electrochemical properties. The physicochemical results showed that the NCD film had higher sp2 carbon content and greater doping level; this contributed to improvements in its surface roughness, as well as its specific capacitance and charge transfer, which consequently enhanced its electrocatalytic activity in comparison with the MCD. The results obtained from CIP removal and mineralization assays performed in sulfate medium also showed that the NCD was more efficient than the MCD under all the current densities investigated. The effects of CIP concentration and the evolution of the final by-products, including short-chain carboxylic acids and inorganic ions, were also investigated. The electrochemical performance of the NCD was evaluated in different aqueous matrices, including chloride medium, real wastewater and simulated urine. The application of the NCD led to complete or almost complete CIP degradation, regardless of the medium employed. The kinetic constant rates obtained under the different media investigated were as follows: synthetic urine (0.0416 min-1 - R2 = 0.991) < real wastewater (0.0923 min-1 R2 = 0.997) < synthetic matrix containing chloride (0.1992 min-1 - R2 = 0.995); this shows that the pollutant degradation was affected by the type of aqueous matrix and the oxidants that were electrogenerated in situ. The results obtained from the analysis of electrical energy per order (EE/O) showed that the treatment of simulated urine spkiked with required the highest energy consumption, followed by the real effluent and synthetic matrix containing chloride. The present study proves the viability of electrocatalytic nanostructured materials to the treatment of antibiotics in complex matrices.
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Affiliation(s)
- Alexsandro J Dos Santos
- São Carlos Institute of Chemistry, University of São Paulo, Avenida Trabalhador São-Carlense 400, São Carlos, SP, 13566-590, Brazil.
| | - Guilherme V Fortunato
- São Carlos Institute of Chemistry, University of São Paulo, Avenida Trabalhador São-Carlense 400, São Carlos, SP, 13566-590, Brazil.
| | - Matheus S Kronka
- São Carlos Institute of Chemistry, University of São Paulo, Avenida Trabalhador São-Carlense 400, São Carlos, SP, 13566-590, Brazil
| | - Laís G Vernasqui
- National Institute for Space Research - INPE, Av. dos Astronautas, 1758, Jd. Granja, São José dos Campos, SP, 12227-010, Brazil
| | - Neidenêi G Ferreira
- National Institute for Space Research - INPE, Av. dos Astronautas, 1758, Jd. Granja, São José dos Campos, SP, 12227-010, Brazil
| | - Marcos R V Lanza
- São Carlos Institute of Chemistry, University of São Paulo, Avenida Trabalhador São-Carlense 400, São Carlos, SP, 13566-590, Brazil.
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20
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Preparation of SiNWs/rGO/CuO Nanocomposites as Effective Photocatalyst for Degradation of Ciprofloxacin Assisted with Peroxymonosulfate. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-021-02184-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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21
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Use of a turbulence promoter in an electrochemical filter-press reactor: Consolidated evidence of significant enhancement of organics mass transport and degradation rates. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119292] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Donoso G, Dominguez JR, González T, Correia S, Cuerda-Correa EM. Electrochemical and sonochemical advanced oxidation processes applied to tartrazine removal. Influence of operational conditions and aqueous matrix. ENVIRONMENTAL RESEARCH 2021; 202:111517. [PMID: 34216609 DOI: 10.1016/j.envres.2021.111517] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 06/03/2021] [Accepted: 06/03/2021] [Indexed: 06/13/2023]
Abstract
Tartrazine degradation was investigated by electrochemical and sonochemical oxidation processes. Anodic oxidation was carried out using boron-doped diamond (BDD) electrodes. The influence of current density and dye initial concentration on the removal of tartrazine from water was analyzed. The experimental results indicate that total removal of tartrazine was obtained, and Chemical Oxygen Demand (COD) and Total Organic Carbon (TOC) removals of up to 94.4% and 72.8% were achieved, respectively. To optimize the process, the pollutant removal percentage, the kinetic rate constant, and the TOC removal efficiency were chosen as target variables. Moreover, sonochemical oxidation experiments at a high-frequency range of cavitation (up to 1 MHz) were performed to establish the influence of three different operating variables, namely ultrasound frequency (0.5-1.1 MHz), ultrasound power (2.0-26.6 W ⋅L-1), and pulse-stop ratio (5:1-1:1). The process was also analyzed in terms of kinetics and energy costs. The kinetics resulted to be three times faster for the electrochemical process. However, the calculated energy costs were very similar, at least at long treatment times. Finally, the influence of three aqueous matrices was investigated. According to the experimental results, the natural occurrence of chloride and/or nitrate ions in water strongly conditions the rate of the process, although at least 90% of tartrazine removal was achieved within the first 50 min of treatment.
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Affiliation(s)
- G Donoso
- Department of Chemical Engineering and Physical Chemistry. Area of Chemical Engineering. Faculty of Sciences, University of Extremadura, Avda. de Elvas, s/n, E-06006, Badajoz, Spain
| | - Joaquin R Dominguez
- Department of Chemical Engineering and Physical Chemistry. Area of Chemical Engineering. Faculty of Sciences, University of Extremadura, Avda. de Elvas, s/n, E-06006, Badajoz, Spain
| | - T González
- Department of Chemical Engineering and Physical Chemistry. Area of Chemical Engineering. Faculty of Sciences, University of Extremadura, Avda. de Elvas, s/n, E-06006, Badajoz, Spain
| | - S Correia
- Department of Chemical Engineering and Physical Chemistry. Area of Chemical Engineering. Faculty of Sciences, University of Extremadura, Avda. de Elvas, s/n, E-06006, Badajoz, Spain
| | - Eduardo M Cuerda-Correa
- Department of Organic and Inorganic Chemistry. Faculty of Sciences, University of Extremadura, Avda. de Elvas, s/n, E-06006, Badajoz, Spain.
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23
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Unraveling the role of electrolytes during electrochemical oxidation by differential electrochemical mass spectrometry. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138521] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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24
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Handschuh-Wang S, Wang T, Tang Y. Ultrathin Diamond Nanofilms-Development, Challenges, and Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2007529. [PMID: 34041849 DOI: 10.1002/smll.202007529] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 12/24/2020] [Indexed: 06/12/2023]
Abstract
Diamond is a highly attractive material for ample applications in material science, engineering, chemistry, and biology because of its favorable properties. The advent of conductive diamond coatings and the steady demand for miniaturization in a plethora of economic and scientific fields resulted in the impetus for interdisciplinary research to develop intricate deposition techniques for thin (≤1000 nm) and ultra-thin (≤100 nm) diamond films on non-diamond substrates. By virtue of the lowered thickness, diamond coatings feature high optical transparency in UV-IR range. Combined with their semi-conductivity and mechanical robustness, they are promising candidates for solar cells, optical devices, transparent electrodes, and photochemical applications. In this review, the difficulty of (ultra-thin) diamond film development and production, introduction of important stepping stones for thin diamond synthesis, and summarization of the main nucleation procedures for diamond film synthesis are elucidated. Thereafter, applications of thin diamond coatings are highlighted with a focus on applications relying on ultrathin diamond coatings, and the excellent properties of the diamond exploited in said applications are discussed, thus guiding the reader and enabling the reader to quickly get acquainted with the research field of ultrathin diamond coatings.
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Affiliation(s)
- Stephan Handschuh-Wang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518055, China
| | - Tao Wang
- Functional Thin Films Research Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yongbing Tang
- Functional Thin Films Research Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Key Laboratory of Advanced Materials Processing & Mold, Ministry of Education, Zhengzhou University, Zhengzhou, 450002, China
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25
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Ren Z, Xu H, Wang Y, Li Y, Han S, Ren J. Combined toxicity characteristics and regulation of residual quinolone antibiotics in water environment. CHEMOSPHERE 2021; 263:128301. [PMID: 33297242 DOI: 10.1016/j.chemosphere.2020.128301] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 09/02/2020] [Accepted: 09/08/2020] [Indexed: 06/12/2023]
Abstract
In this study, the mixture toxicity index method was used to evaluate the combined toxicity of residual Quinolones (QNs) on algae in twelve groups of water environment reported in the literature. The selected three sets of data (II, Ⅺ, and Ⅻ) combined with full factorial design method were used to analyze the significance of the combined toxicity. Subsequently, molecular docking was used to reveal the significant mechanism of the primary effect of the combined toxicity. Finally, based on the sensitivity analysis method, the acid-base conditions affecting the combined toxicity were screened, and molecular dynamics simulation was used to control the combined toxicity in the water environment. The results of the mixture toxicity index method showed that the combined toxicity in all the twelve groups of water environments was synergistic. The full factorial design method revealed that ciprofloxacin, norfloxacin, enrofloxacin, lomefloxacin, and their binary combinations from the combined toxicity system of QNs, were the significant factors that caused the synergistic toxicity of QNS on algae. Molecular docking confirmed that the total number of amino acids, the number of significant amino acids, and hydrogen bonds of QNs toxic targets were significantly related to the synergistic effect of the combined toxicity. In addition, the molecular dynamics simulation showed that the binding energy of residual QNs and toxic targets changes with the acid-base conditions of the water environment. Thus, the combined toxicity can be slowed down or reduced by adequately adjusting the acid-base condition of the water.
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Affiliation(s)
- Zhixing Ren
- College of Forestry, Northeast Forestry University, No. 26 Hexing Road, Harbin, 150040, China.
| | - Haihong Xu
- Appraisal Center for Environmental & Engineering Ministry of Ecology and Environment, No. 28 Beiyuan Road, Beijing, 100012, China.
| | - Yingwei Wang
- College of Forestry, Northeast Forestry University, No. 26 Hexing Road, Harbin, 150040, China.
| | - Yufei Li
- College of Forestry, Northeast Forestry University, No. 26 Hexing Road, Harbin, 150040, China.
| | - Song Han
- College of Forestry, Northeast Forestry University, No. 26 Hexing Road, Harbin, 150040, China.
| | - Jinbo Ren
- Jilin Branch of China Kunlun Contracting Engineering Corporation, No. 888 Binjiangxi Road, Jilin, 132013, China.
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26
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Seibert D, Zorzo CF, Borba FH, de Souza RM, Quesada HB, Bergamasco R, Baptista AT, Inticher JJ. Occurrence, statutory guideline values and removal of contaminants of emerging concern by Electrochemical Advanced Oxidation Processes: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 748:141527. [PMID: 33113672 DOI: 10.1016/j.scitotenv.2020.141527] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/23/2020] [Accepted: 08/04/2020] [Indexed: 06/11/2023]
Abstract
A wide variety of chemical compounds are used in human activities; however, part of these compounds reach surface water, groundwater and even water considered for potable uses. Due to the limited efficiency of water treatment by the Water and Wastewater Treatment Plants, the presence of these compounds in natural and human consumption waters can be very harmful due to their high persistence and adverse effects; these characteristics define the contaminants of emerging concern (CECs). Water treatment by Electrochemical Advanced Oxidation Processes (EAOPs) has been evaluated as a promising process for the removal of persistent and recalcitrant organic contaminants. With this background, the present review aims to gather studies and information published between 2015 and 2020 regarding the occurrence of CECs in surface, potable and groundwater, its treatment by EAOPs, the main operating conditions and by-product generation of EAOPs, contaminant toxicity assessments and international statutory guideline values concerning CEC standards and allowable concentrations in the environment and treated drinking water. Therefore, in this review it was found that the compounds bisphenol A (BPA), diethyltoluamide (DEET), 17α-ethinyl estradiol (EE2), perfluorobutanoic acid (PFBA), carbamazepine, caffeine and atrazine were the most frequently detected in water sources, with concentrations ranging from 35.54-4800, 1.21-98, 0.005-38.5, 5-742.904, 0.0071-586, 0.89-1040, and 100-323 (ng L-1), respectively. Among the operational conditions of EAOPs, current density, pH and oxidant concentration are the main operational parameters that have an influence on these treatment technologies, besides the by-products generated, which might be removed by the integration of EAOPs with biological digestion treatments. Regarding the values of water quality standards, many CECs do not have established standard allowable concentration values, which represents a concern toward the possible toxic effects of these compounds on non-target organisms.
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Affiliation(s)
- Daiana Seibert
- Postgraduate Program of Chemical Engineering, State University of Maringa - UEM, Av. Colombo, 5790, Maringa, Parana CEP: 87020-900, Brazil.
| | - Camila F Zorzo
- Postgraduate Program of Environment and Sustainable Technologies, Federal University of Fronteira Sul, Rua Jacob Reinaldo Haupenthal 1580, 97900-00 Cerro Largo, RS, Brazil
| | - Fernando H Borba
- Postgraduate Program of Environment and Sustainable Technologies, Federal University of Fronteira Sul, Rua Jacob Reinaldo Haupenthal 1580, 97900-00 Cerro Largo, RS, Brazil
| | - Renata M de Souza
- Postgraduate Program of Chemical Engineering, State University of Maringa - UEM, Av. Colombo, 5790, Maringa, Parana CEP: 87020-900, Brazil
| | - Heloise B Quesada
- Postgraduate Program of Chemical Engineering, State University of Maringa - UEM, Av. Colombo, 5790, Maringa, Parana CEP: 87020-900, Brazil
| | - Rosângela Bergamasco
- Postgraduate Program of Chemical Engineering, State University of Maringa - UEM, Av. Colombo, 5790, Maringa, Parana CEP: 87020-900, Brazil
| | - Aline T Baptista
- Academic Department of Food and Chemical Engineering, Federal Technology University of Parana - UTFPR, Via Rosalina Maria dos Santos, 1233.CEP 87301-899 - Caixa Postal: 271, Campo Mourão, PR, Brazil
| | - Jonas J Inticher
- Postgraduate Program of Environment and Sustainable Technologies, Federal University of Fronteira Sul, Rua Jacob Reinaldo Haupenthal 1580, 97900-00 Cerro Largo, RS, Brazil
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Carneiro JF, Aquino JM, Silva BF, Silva AJ, Rocha-Filho RC. Comparing the electrochemical degradation of the fluoroquinolone antibiotics norfloxacin and ciprofloxacin using distinct electrolytes and a BDD anode: evolution of main oxidation byproducts and toxicity. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 2020; 8:104433. [PMID: 32953450 PMCID: PMC7487200 DOI: 10.1016/j.jece.2020.104433] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 08/13/2020] [Accepted: 08/25/2020] [Indexed: 05/04/2023]
Abstract
The effects of the supporting electrolytes (SEs) Na2SO4, NaCl, Na2CO3, NaNO3, and Na3PO4 on the anodic oxidation of norfloxacin (NOR) and ciprofloxacin (CIPRO), assessed by the respective degradation kinetics and byproducts and electrolyzed solution antimicrobial activity, are compared. Galvanostatic anodic oxidations were performed in a filter-press flow cell fitted with a boron-doped diamond anode. Removal rates higher than the theoretical one for a process purely controlled by mass transfer were found for all SEs, indicative of contribution by indirect oxidation processes. However, the removal rates for NaCl were about tenfold higher, with the lowest energy consumption per order (EC O) of targeted pollutant removal rate (ca. 0.7 kW h m-3 order-1), a very competitive performance. The TOC removal rates were also affected by the SE, but not as markedly. The antimicrobial activity of the electrolyzed solutions against Escherichia coli showed distinct temporal profiles, depending on the fluoroquinolone and SE. For instance, when Na3PO4 was used, the antimicrobial activity was completely removed for NOR, but none for CIPRO; conversely, when NaCl was used, complete removal was attained only for CIPRO. From LC-MS/MS analyses of Na3PO4 electrolyzed solutions, rupture of the fluoroquinolone ring leading to byproducts with no toxicity against E. coli occurred only for NOR, whereas exactly the opposite occurred for the NaCl solutions. Clearly, the nature of both the SE and the fluoroquinolone influence the oxidation steps of the respective molecule; this was also evidenced by the distinct short-chain carboxylic acids identified in the degradation of NOR and CIPRO.
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Affiliation(s)
- Jussara F Carneiro
- Departamento de Química, Universidade Federal de São Carlos, C.P. 676, 13560-970 São Carlos, SP, Brazil
| | - José M Aquino
- Departamento de Química, Universidade Federal de São Carlos, C.P. 676, 13560-970 São Carlos, SP, Brazil
| | - Bianca F Silva
- Instituto de Química de Araraquara, Departamento de Química Analítica, Universidade Estadual Paulista, 14800-900 Araraquara, SP, Brazil
| | - Adilson J Silva
- Departamento de Engenharia Química, Universidade Federal de São Carlos, C.P. 676, 13560-970 São Carlos, SP, Brazil
| | - Romeu C Rocha-Filho
- Departamento de Química, Universidade Federal de São Carlos, C.P. 676, 13560-970 São Carlos, SP, Brazil
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28
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Oliveira KSGC, Veroli AB, Ruotolo LAM. Using modulated current for energy minimization in the electrochemical treatment of effluents containing organic pollutants. JOURNAL OF HAZARDOUS MATERIALS 2020; 399:123053. [PMID: 32516650 DOI: 10.1016/j.jhazmat.2020.123053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 05/25/2020] [Accepted: 05/25/2020] [Indexed: 06/11/2023]
Abstract
Anodic oxidation of recalcitrant organic compounds suffers from loss of efficiency as the concentration decreases, leading to high energy consumption. Here, we propose a modulated current (MC) technique to control and maintain the applied current as close as possible to its limiting value throughout the electrolysis, thus ensuring high mineralization current efficiency. The efficacy of this technique was first validated for caffeic acid (CA) electrooxidation using a boron-doped diamond (BDD) anode and was then confirmed for the degradation of a wastewater containing phenolic compounds from wet coffee processing. Combining MC and constant current (CC) operation for CA electrolysis resulted in a substantial reduction of the specific energy consumption from 256 to 52.4 kWh kg-1 TOC, due to improvement of the mineralization current efficiency from 17.9 to 77.1%. The MC+CC technique was also successful in reducing the energy consumption for a real coffee processing wastewater mineralization, demonstrating its suitability as a simple and effective tool that can be used to reduce the energy costs in electrochemical treatment of effluents containing organic pollutants.
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Affiliation(s)
- K S G C Oliveira
- Federal University of São Carlos, Department of Chemical Engineering, Rod. Washington Luiz, km 235, 13565-905, São Carlos, SP, Brazil
| | - A B Veroli
- Federal University of São Carlos, Department of Chemical Engineering, Rod. Washington Luiz, km 235, 13565-905, São Carlos, SP, Brazil
| | - L A M Ruotolo
- Federal University of São Carlos, Department of Chemical Engineering, Rod. Washington Luiz, km 235, 13565-905, São Carlos, SP, Brazil.
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29
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Liu B, Zhang SG, Chang CC. Emerging pollutants-Part II: Treatment. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2020; 92:1603-1617. [PMID: 32706436 DOI: 10.1002/wer.1407] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/10/2020] [Accepted: 07/14/2020] [Indexed: 06/11/2023]
Abstract
Emerging pollutants (EPs) refer to a class of pollutants, which are emerging in the environment or recently attracted attention. EPs mainly include pharmaceutical and personal care products (PPCPs), endocrine-disrupting chemicals (EDCs), and antibiotic resistance genes (ARGs). EPs have potential threats to human health and ecological environment. In recent years, the continuous detections of EPs in surface and ground water have brought huge challenges to water treatment and also made the treatment of EPs become an international research hotspot. This paper summarizes some research results on EPs treatment published in 2019. This paper may be helpful to understand the current situations and development trends of EP treatment technologies.
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Affiliation(s)
- Bo Liu
- Institute for Advanced Materials and Technology, University of Science and Technology, Beijing, China
| | - Shen-Gen Zhang
- Institute for Advanced Materials and Technology, University of Science and Technology, Beijing, China
| | - Chein-Chi Chang
- Department of Engineering and Technical Services, DC Water and Sewer Authority, Washington, District of Columbia
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30
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Freitas JM, Wachter N, Rocha-Filho RC. Determination of bisphenol S, simultaneously to bisphenol A in different water matrices or solely in electrolyzed solutions, using a cathodically pretreated boron-doped diamond electrode. Talanta 2020; 217:121041. [DOI: 10.1016/j.talanta.2020.121041] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 04/10/2020] [Accepted: 04/13/2020] [Indexed: 12/13/2022]
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Saadi S, Moteshaker PM, Rokni SE, Ahmadidoust G, Farnoodian N, Yousefi A. The electrochemical degradation of the metronidazole (MNZ) antibiotic using electrochemical oxidation on a stainless steel316 coated with beta lead oxide (SS316/β-PbO2) anode. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING 2020. [DOI: 10.1515/ijcre-2019-0226] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractMetronidazole (MNZ) is one of the pharmaceutical products which is considered as one of the most important pollutants in the environment due to its wide use and resistance to biodegradation. Hence, the purpose of this study is the optimization of the electrochemical degradation of the metronidazole (MNZ) antibiotic using electrochemical oxidation on a stainless steel316 coated with beta lead oxide (SS316/β-PbO2) anode. In the studied electrochemical process, the response surface methodology (RSM) involving a five-level ((pH (A) and electrolysis time (B), current density (C), and MNZ concentration (D)). The central composite design (CCD) was employed for optimizing and modeling of the electrochemical process in the degradation of MNZ. The preparation of SS316/β-PbO2 anode was accomplished using the electro-deposition method. Scanning electron microscope (SEM), energy-dispersive X-ray (EDX), and X-ray diffraction (XRD) analyses were conducted for accurate evaluation and characterization of the coated electrode. The effect of influencing factors on electrochemical degradation of MNZ was studied, and the highest MNZ degradation efficiency was observed to be 98.88% after 120 min under the optimal conditions including the supporting electrolyte concentration of 1.0 g/100 cc, the initial MNZ concentration of 30.1 mg/L, pH of 4 and the current density of 9.99 mA/cm2. The linear regression coefficient (R2) between experiments and different response values in the model was 0.99. Moreover, the statistical analysis of the results indicated that in the range studied, the most effective parameters in MNZ degradation are MNZ concentration and pH. In general, it can be concluded that the electrochemical process using SS316/β-PbO2 anode can effectively eliminate metronidazole, and it can be considered as an efficient method in the degradation of various pollutants.
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Affiliation(s)
- Sommayeh Saadi
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran
| | - Parisa Mahmoudpoor Moteshaker
- Department of Natural Resources and Environment, Science and Research Branch, Islamic Azad University, Tehran, Islamic Republic of Iran
| | - Seyed Ehsan Rokni
- Department of Natural Resources and Environment, Science and Research Branch, Islamic Azad University, Tehran, Islamic Republic of Iran
| | - Ghobad Ahmadidoust
- Department of Environmental Health Engineering, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Islamic Republic of Iran
| | - Narges Farnoodian
- Department of Environment and Energy, Science and Research Branch, Islamic Azad University, Tehran, Islamic Republic of Iran
| | - Arman Yousefi
- Department of Microbiology, Faculty of Basic Sciences, Islamic Azad University Bonab, Bonab, Islamic Republic of Iran
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32
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Magro C, Mateus EP, Paz-Garcia JM, Ribeiro AB. Emerging organic contaminants in wastewater: Understanding electrochemical reactors for triclosan and its by-products degradation. CHEMOSPHERE 2020; 247:125758. [PMID: 31931309 DOI: 10.1016/j.chemosphere.2019.125758] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 12/16/2019] [Accepted: 12/23/2019] [Indexed: 05/06/2023]
Abstract
Degradation technologies applied to emerging organic contaminants from human activities are one of the major water challenges in the contamination legacy. Triclosan is an emerging contaminant, commonly used as antibacterial agent in personal care products. Triclosan is stable, lipophilic and it is proved to have ecotoxicologic effects in organics. This induces great concern since its elimination in wastewater treatment plants is not efficient and its by-products (e.g. methyl-triclosan, 2,4-dichlorophenol or 2,4,6-trichlorophenol) are even more hazardous to several environmental compartments. This work provides understanding of two different electrochemical reactors for the degradation of triclosan and its derivative by-products in effluent. A batch reactor and a flow reactor (mimicking a secondary settling tank in a wastewater treatment plant) were tested with two different working anodes: Ti/MMO and Nb/BDD. The degradation efficiency and kinetics were evaluated to find the best combination of current density, electrodes and set-up design. For both reactors the best electrode combination was achieved with Ti/MMO as anode. The batch reactor at 7 mA/cm2 during 4 h attained degradation rates below the detection limit for triclosan and 2,4,6-trichlorophenol and, 94% and 43% for 2,4-dichlorophenol and methyl triclosan, respectively. The flow reactor obtained, in approximately 1 h, degradation efficiencies between 41% and 87% for the four contaminants. This study suggests an alternative technology for emerging organic contaminants degradation, since the combination of a low current density with the flow and matrix induced disturbance increases and speeds up the compounds' elimination in a real environmental matrix.
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Affiliation(s)
- Cátia Magro
- CENSE, Department of Sciences and Environmental Engineering, NOVA School of Science and Technology, NOVA University Lisbon, Caparica Campus, 2829-516, Caparica, Portugal.
| | - Eduardo P Mateus
- CENSE, Department of Sciences and Environmental Engineering, NOVA School of Science and Technology, NOVA University Lisbon, Caparica Campus, 2829-516, Caparica, Portugal
| | - Juan M Paz-Garcia
- Department of Chemical Engineering, Faculty of Sciences, University of Malaga, Teatinos Campus, 29010, Málaga, Spain
| | - Alexandra B Ribeiro
- CENSE, Department of Sciences and Environmental Engineering, NOVA School of Science and Technology, NOVA University Lisbon, Caparica Campus, 2829-516, Caparica, Portugal.
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Miao D, Liu G, Wei Q, Hu N, Zheng K, Zhu C, Liu T, Zhou K, Yu Z, Ma L. Electro-activated persulfate oxidation of malachite green by boron-doped diamond (BDD) anode: effect of degradation process parameters. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2020; 81:925-935. [PMID: 32541111 DOI: 10.2166/wst.2020.176] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In this paper, boron-doped diamond (BDD) electro-activated persulfate was studied to decompose malachite green (MG). The degradation results indicate that the decolorization performance of MG for the BDD electro-activated persulfate (BDD-EAP) system is 3.37 times that of BDD electrochemical oxidation (BDD-EO) system, and BDD-EAP system also exhibited an enhanced total organic content (TOC) removal (2.2 times) compared with BDD-EO system. Besides, the degradation parameters such as persulfate concentration, current density, and pH were studied in detail. In a wider range of pH (2-10), the MG can be efficiently removed (>95%) in 0.02 M persulfate solution with a low current density of 1.7 mA/cm2 after 30 min. The BDD-EAP technology decomposes organic compounds without the diffusion limitation and avoids pH adjustment, which makes the EO treatment of organic wastewater more efficient and more economical.
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Affiliation(s)
- Dongtian Miao
- State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha 410083, China E-mail:
| | - Guoshuai Liu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Qiuping Wei
- State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha 410083, China E-mail:
| | - Naixiu Hu
- State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha 410083, China E-mail:
| | - Kuangzhi Zheng
- State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha 410083, China E-mail:
| | - Chengwu Zhu
- State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha 410083, China E-mail:
| | - Ting Liu
- State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha 410083, China E-mail:
| | - Kechao Zhou
- State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha 410083, China E-mail:
| | - Zhiming Yu
- State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha 410083, China E-mail:
| | - Li Ma
- State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha 410083, China E-mail:
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