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Zheng W, Liu Z, Wang B, Tao M, Ji H, Xiang X, Fu Z, Liao L, Liao P, Chen R. Effective degradation of polystyrene microplastics by Ti/La/Co-Sb-SnO 2 anodes: Enhanced electrocatalytic stability and electrode lifespan. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 922:171002. [PMID: 38369141 DOI: 10.1016/j.scitotenv.2024.171002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Revised: 02/02/2024] [Accepted: 02/13/2024] [Indexed: 02/20/2024]
Abstract
Microplastics have been identified as an emerging pollutant that poses a risk to the aquatic environment, and it is a challenge to find a suitable removal process. Electrocatalytic oxidation (ECO) technology has shown promising performance in removing various persistent organic pollutants. In this study, we prepared a new anode for removing polystyrene microplastics (PS MPs) by ECO. Ti/La-Sb-SnO2 electrodes doped with the rare earth element La as the active layer were synthesized to enhance the electrocatalytic activity. The lifespan of the electrode was improved by doping Mn, Co, or Ru as an intermediate layer modification between the titanium (Ti) substrate and the La-Sb-SnO2 active layer, respectively. The experimental results indicated that the addition of three types of intermediate layers led to different degrees of decrease in the catalytic activity of the electrode and the degradation performance of PS MPs. The addition of the Co intermediate layer had a negligible effect on the catalytic activity and performance of the Ti/La-Sb-SnO2 anode for PS degradation. In addition, the electrode lifespan with Co intermediate layer was significantly prolonged, which was 4.54, 2.38, and 1.19 times higher than the electrode without intermediate layer and the electrode with Ru and Mn intermediate layer, respectively. Therefore, Co was determined to be the optimal choice as the intermediate layer, and the production technique for the Ti/La/Co-Sb-SnO2 anodes was carefully adjusted. The degradation efficiency of PS MPs was optimized at a heat treatment temperature of 400 °C and a Sn: Co material ratio of 5:1, with a removal rate of 28.0 %. The ECO treatment also resulted in more pronounced changes in the structure and functional groups of the MPs. Various alkyl cleavage and oxidation products were detected after the treatment, suggesting that the oxidant (hydroxyl radicals) strongly interacted with the MPs, leading to their degradation. Overall, this work provided a new insight into removing MPs in water through the use of modified electrodes.
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Affiliation(s)
- Weikang Zheng
- School of Resources and Environment, Nanchang University, Nanchang 330031, China; Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, Nanchang University, Nanchang 330031, China
| | - Zhenzhong Liu
- School of Resources and Environment, Nanchang University, Nanchang 330031, China; Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, Nanchang University, Nanchang 330031, China.
| | - Boyan Wang
- School of Resources and Environment, Nanchang University, Nanchang 330031, China; Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, Nanchang University, Nanchang 330031, China
| | - Meijun Tao
- Engineering Fire Technology Research Center of JiangXi Province, Nanchang 330046, China
| | - Hongliang Ji
- School of Resources and Environment, Nanchang University, Nanchang 330031, China; Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, Nanchang University, Nanchang 330031, China
| | - Xiaofang Xiang
- School of Resources and Environment, Nanchang University, Nanchang 330031, China; Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, Nanchang University, Nanchang 330031, China
| | - Zhengguo Fu
- School of Resources and Environment, Nanchang University, Nanchang 330031, China; Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, Nanchang University, Nanchang 330031, China
| | - Lili Liao
- School of Resources and Environment, Nanchang University, Nanchang 330031, China; Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, Nanchang University, Nanchang 330031, China
| | - Peng Liao
- School of Resources and Environment, Nanchang University, Nanchang 330031, China; Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, Nanchang University, Nanchang 330031, China
| | - Ronglong Chen
- School of Resources and Environment, Nanchang University, Nanchang 330031, China; Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, Nanchang University, Nanchang 330031, China
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2
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Kiendrebeogo M, Ouarda Y, Karimi Estahbanati MR, Drogui P, Tyagi RD. Nanoplastics removal from spiked laundry wastewater using electro-peroxidation process. CHEMOSPHERE 2023; 341:139963. [PMID: 37659516 DOI: 10.1016/j.chemosphere.2023.139963] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Revised: 08/09/2023] [Accepted: 08/23/2023] [Indexed: 09/04/2023]
Abstract
Microplastics and nanoplastics (NPs) in laundry wastewater (LWW) are major sources of plastic particles in wastewater treatment plants. Unlike microplastics, almost no information exists in the literature on the degradation of NPs in LWW. In this work, the degradation of NPs in commercial LWW by the electro-peroxidation process is investigated. The obtained results demonstrated that already existing ions in LWW such as Cl- contribute to faster degradation of NPs and a complete removal could be obtained as fast as 40 min. In addition, three-dimensional excitation and emission matrix fluorescence analysis was performed, which revealed humic acid-like, aromatic proteins-like, and fulvic acid-like compounds could be oxidized after 20, 40, and 60 min of treatment respectively. The effects of operating parameters on the process performance were then examined by response surface methodology (RSM) models. The results showed that initial TOC concentration was the most important parameter influencing negatively the percentage of NP degradation. Afterward, optimization of the process revealed that the energy consumption could be minimized at 31.2 mA/cm2, 0.025 mol/L [Na2SO4], and 52 min treatment time for 52.2 mg/L initial TOC. Finally, analysis of treated LWW showed no toxicity on Daphnia magna. This study showed that the electro-peroxidation process can completely degrade NPs in LWW without any remaining toxic compounds.
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Affiliation(s)
- Marthe Kiendrebeogo
- Institut National de La Recherche Scientifique (INRS) - Centre Eau Terre Environnement (ETE), 490 Rue de La Couronne, Québec, (QC), G1K 9A9, Canada
| | - Yassine Ouarda
- Institut National de La Recherche Scientifique (INRS) - Centre Eau Terre Environnement (ETE), 490 Rue de La Couronne, Québec, (QC), G1K 9A9, Canada
| | - M R Karimi Estahbanati
- Institut National de La Recherche Scientifique (INRS) - Centre Eau Terre Environnement (ETE), 490 Rue de La Couronne, Québec, (QC), G1K 9A9, Canada
| | - Patrick Drogui
- Institut National de La Recherche Scientifique (INRS) - Centre Eau Terre Environnement (ETE), 490 Rue de La Couronne, Québec, (QC), G1K 9A9, Canada.
| | - R D Tyagi
- Institut National de La Recherche Scientifique (INRS) - Centre Eau Terre Environnement (ETE), 490 Rue de La Couronne, Québec, (QC), G1K 9A9, Canada; Distinguished Prof Huzhou University, China; Chief Scientific Officer, BOSK Bioproducts, Québec, Canada
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3
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Huang W, Huang Y, Tang B, Fu Y, Guo C, Zhang J. Electrochemical oxidation of carbamazepine in water using enhanced blue TiO 2 nanotube arrays anode on porous titanium substrate. CHEMOSPHERE 2023; 322:138193. [PMID: 36812998 DOI: 10.1016/j.chemosphere.2023.138193] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 02/12/2023] [Accepted: 02/18/2023] [Indexed: 06/18/2023]
Abstract
In this study, a blue TiO2 nanotube arrays anode on porous titanium substrate (Ti-porous/blue TiO2 NTA) was successfully fabricated by facile anodization and in situ reduction, and was used to investigate the electrochemical oxidation of carbamazepine (CBZ) in aqueous solution. The surface morphology and crystalline phase of the fabricated anode were characterized by SEM, XRD, Raman spectroscopy and XPS, and the electrochemical analysis confirmed that blue TiO2 NTA on Ti-porous substrate had larger electroactive surface area, better electrochemical performance and higher ⋅OH generation ability than that on Ti-plate substrate. The removal efficiency of 20 mg L-1 CBZ in 0.05 M Na2SO4 solution reached 99.75% at 8 mA cm-2 after 60 min electrochemical oxidation, and the rate constant was 0.101 min-1 with low energy consumption. EPR analysis and free radical sacrificing experiments showed that ⋅OH played a key role in the electrochemical oxidation. The possible oxidation pathways of CBZ were proposed through the identification of degradation products, and the main reactions may involve deamidization, oxidization, hydroxylation and ring-opening. Compared with Ti-plate/blue TiO2 NTA anode, Ti-porous/blue TiO2 NTA anode displayed excellent stability and reusability, and is promising to be used in the electrochemical oxidation of CBZ in wastewater.
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Affiliation(s)
- Weibin Huang
- Chongqing Key Laboratory of Agricultural Resources and Environment, College of Resources and Environment, Southwest University, Chongqing, 400715, PR China
| | - Yue Huang
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Environment Science and Engineering, Tiangong University, Tianjin, 300387, PR China
| | - Bobin Tang
- Technical Centre, Chongqing Customs, Chongqing Engineering Technology Research Center of Import and Export Food Safety, Chongqing, 400020, PR China
| | - Yuanhang Fu
- Chongqing Key Laboratory of Agricultural Resources and Environment, College of Resources and Environment, Southwest University, Chongqing, 400715, PR China
| | - Chunhui Guo
- Chongqing Key Laboratory of Agricultural Resources and Environment, College of Resources and Environment, Southwest University, Chongqing, 400715, PR China
| | - Jinzhong Zhang
- Chongqing Key Laboratory of Agricultural Resources and Environment, College of Resources and Environment, Southwest University, Chongqing, 400715, PR China.
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4
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Ranga M, Sinha S. Mechanism and Techno‐Economic Analysis of the Electrochemical Process. CHEMBIOENG REVIEWS 2023. [DOI: 10.1002/cben.202200025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Affiliation(s)
- Monica Ranga
- Indian Institute of Technology Roorkee Department of Chemical Engineering 247667 Roorkee, Uttarakhand India
| | - Shishir Sinha
- Indian Institute of Technology Roorkee Department of Chemical Engineering 247667 Roorkee, Uttarakhand India
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Dao KC, Tsai YP, Yang CC, Chen KF. Simultaneous Carbamazepine and Phosphate Removal from a Moving-Bed Membrane Bioreactor Effluent by the Electrochemical Process: Treatment Optimization by Factorial Design. MEMBRANES 2022; 12:1256. [PMID: 36557163 PMCID: PMC9781923 DOI: 10.3390/membranes12121256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 12/04/2022] [Accepted: 12/08/2022] [Indexed: 06/17/2023]
Abstract
Pharmaceutical and personal care products are frequently used in various fields and released into water bodies from the outlets of wastewater treatment plants. These products can harm the environment and human health even at low concentrations. Carbamazepine (CBZ), the most persistent pharmaceutical, has frequently been found in surface waters that bypassed the secondary treatments of conventional activated sludge. In addition, the treatment of phosphate in wastewater by the electrochemical process has recently attracted much attention because of its ability to remove, recover, and prevent environmental problems associated with eutrophication. This study proposes using the electrochemical process as an advanced oxidation process to simultaneously treat CBZ and phosphate from the moving-bed membrane bioreactor effluent. The study includes a long-term survey of CBZ treatment efficiency and common parameters of synthetic wastewater in the moving-bed membrane bioreactor system. Afterward, the electrochemical process is applied as an advanced oxidation process for the simultaneous removal of CBZ and phosphate from the moving-bed membrane bioreactor. Under the investigated conditions, CBZ has proven not to be an inhibitor of microbial activity, as evidenced by the high extent of chemical oxygen demand and nutrient removal. Using a factorial design, the electrochemical process using Pt/Ti as anode and cathode under optimal conditions (reaction time-80 min, bias potential-3 V, and electrode distance-1 cm) resulted in as high as 56.94% CBZ and 95.95% phosphate removal, respectively. The results demonstrated the ability to combine an electrochemical and a moving-bed membrane bioreactor process to simultaneously remove CBZ and phosphate in wastewater.
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Affiliation(s)
- Khanh-Chau Dao
- Department of Civil Engineering, National Chi Nan University, Nantou Hsien 54561, Taiwan
- Department of Health, Dong Nai Technology University, Bien Hoa 810000, Dong Nai, Vietnam
| | - Yung-Pin Tsai
- Department of Civil Engineering, National Chi Nan University, Nantou Hsien 54561, Taiwan
| | - Chih-Chi Yang
- Department of Civil Engineering, National Chi Nan University, Nantou Hsien 54561, Taiwan
| | - Ku-Fan Chen
- Department of Civil Engineering, National Chi Nan University, Nantou Hsien 54561, Taiwan
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6
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Biswas B, Goel S. Electrocoagulation and electrooxidation technologies for pesticide removal from water or wastewater: A review. CHEMOSPHERE 2022; 302:134709. [PMID: 35489460 DOI: 10.1016/j.chemosphere.2022.134709] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 04/17/2022] [Accepted: 04/21/2022] [Indexed: 06/14/2023]
Abstract
Pesticides are known to be threats to the environment and human health. Excessive use of pesticides in agricultural practice can contaminate water bodies, leading to cancer, asthma, neurological disorders, reproductive defects, and hormonal disruption. Electrochemical methods such as electrocoagulation and electrooxidation can be used for pesticide removal due to their numerous advantages such as high efficiency, less sludge production, and low operational cost. During electrocoagulation, dissolution of anode metals results in metal hydroxide complexes, which precipitate with the contaminant present in the reactor. Simultaneously, electro-flotation occurs at the cathode and results in the evolution of hydrogen gas bubbles, leading to flotation of floc to the top surface of the reactor. This review focuses on the removal mechanisms, kinetics, modeling, effects of influencing factors, and sludge characterization of pesticide removal using electrocoagulation and electrooxidation. Major influencing factors include cell configuration, electrode material, current density, pH, supporting electrolyte concentration. In general, aluminum and iron are the most common electrodes used for pesticide removal using electrocoagulation, while boron-doped diamond was used to a far greater extent as the electrode in electrooxidation studies. Greater than 99% removal efficiency was observed in both processes. Overall, this review summarizes the use of electrochemical methods for pesticide removal and offers valuable information to researchers in this area of study.
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Affiliation(s)
- Bishwatma Biswas
- Environmental Engineering and Management, Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, West Bengal, India
| | - Sudha Goel
- Environmental Engineering and Management, Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, West Bengal, India.
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7
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Zou R, Tang K, Hambly AC, Chhetri RK, Andersen HR, Zhang Y. Elimination of recalcitrant micropollutants by medium pressure UV-catalyzed bioelectrochemical advanced oxidation process: Influencing factors, transformation pathway and toxicity assessment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 828:154543. [PMID: 35302016 DOI: 10.1016/j.scitotenv.2022.154543] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 03/07/2022] [Accepted: 03/09/2022] [Indexed: 06/14/2023]
Abstract
Bio-electro-Fenton (BEF) processes have been widely studied in recent years to remove recalcitrant micropollutants from wastewater. Though promising, it still faces the critical challenge of residual iron and iron sludge in the treated effluent. Thus, an innovative medium-pressure ultraviolet-catalyzed bio-electrochemical system (MUBEC), in which medium-pressure ultraviolet was employed as an alternative to iron for in-situ H2O2 activation, was developed for the removal of recalcitrant micropollutants. The influence of operating parameters, including initial catholyte pH, cathodic aeration rate, and input voltage, on the system performance, was explored. Results indicated that complete reduction of 10 mg L-1 of model micro-pollutants ibuprofen (IBU) and carbamazepine (CBZ) was achieved at pH 3, with an aeration rate of 1 mL min-1 and a voltage of 0.3 V, following pseudo-first-order kinetics. Moreover, potential transformation pathways and the associated intermediates during the degradation were deduced and detected, respectively. Thus, the MUBEC system shows the potential for the efficient and cost-effective degradation of recalcitrant micropollutants from wastewater.
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Affiliation(s)
- Rusen Zou
- Department of Environmental Engineering, Technical University of Denmark, DK-2800 Lyngby, Denmark
| | - Kai Tang
- Department of Environmental Engineering, Technical University of Denmark, DK-2800 Lyngby, Denmark
| | - Adam C Hambly
- Department of Environmental Engineering, Technical University of Denmark, DK-2800 Lyngby, Denmark
| | - Ravi Kumar Chhetri
- Department of Environmental Engineering, Technical University of Denmark, DK-2800 Lyngby, Denmark
| | - Henrik Rasmus Andersen
- Department of Environmental Engineering, Technical University of Denmark, DK-2800 Lyngby, Denmark
| | - Yifeng Zhang
- Department of Environmental Engineering, Technical University of Denmark, DK-2800 Lyngby, Denmark.
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8
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Construction of sodium alginate/konjac glucomannan/chitosan oligosaccharide/Zeolite P hydrogel microspheres loaded with potassium diformate for sustained intestinal bacterial inhibition. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111233] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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9
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The versatile behavior of diamond electrodes — Electrochemical examination of the anti-psychotic drug olanzapine (OL) oxidation as a model organic aqueous solution. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140063] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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10
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Construction of Novel Electro-Fenton Systems by Magnetically Decorating Zero-Valent Iron onto RuO2-IrO2/Ti Electrode for Highly Efficient Pharmaceutical Wastewater Treatment. WATER 2022. [DOI: 10.3390/w14071044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The Electro-Fenton (E-Fenton) technique has shown great potential in wastewater treatment, while the sustainable and continuing supply of Fe2+ remains challenging. Herein, we demonstrate the construction of a novel E-Fenton system by magnetically decorating zero-valent iron (ZVI) onto a RuO2-IrO2/Ti (ZVI-RuO2-IrO2/Ti) electrode for high-efficient treatment of pharmaceutical wastewater, which is considerably refractory and harmful to conventional biological processes. By using ZVI as a durable source of Fe(II) irons, 78.69% of COD and 76.40% of TOC may be rapidly removed by the developed ZVI-RuO2-IrO2/Ti electrode, while the ZVI-RuO2-IrO2/Ti electrode using ZVI only reduces 35.64% of COD under optimized conditions at initial COD and TOC values of 5500 mg/L and 4300 mg/L, respectively. Moreover, the increase in BOD5/COD from 0.21 to 0.52 highlights the enhanced biodegradability of the treated effluent. The analysis of a simultaneously formed precipitation on electrodes suggests that the coagulation process dominated by Fe3+/Fe2+ also plays a non-negligible role in pharmaceutical wastewater treatment. In addition, the monitoring of the evolution of nitrogen elements and the formation of by-products in the E-Fenton process verifies its great capacity toward those organic pollutants found in pharmaceutical wastewater. Our study offers a practical solution for enhancing the performance of E-Fenton systems, and effectively treating refractory pharmaceutical wastewater.
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11
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Rai D, Sinha S. Research trends in the development of anodes for electrochemical oxidation of wastewater. REV CHEM ENG 2022. [DOI: 10.1515/revce-2021-0067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Abstract
The review focuses on the recent development in anode materials and their synthesis approach, focusing on their compatibility for treating actual industrial wastewater, improving selectivity, electrocatalytic activity, stability at higher concentration, and thereby reducing the mineralization cost for organic pollutant degradation. The advancement in sol–gel technique, including the Pechini method, is discussed in the first section. A separate discussion related to the selection of the electrodeposition method and its deciding parameters is also included. Furthermore, the effect of using advanced heating approaches, including microwave and laser deposition synthesis, is also discussed. Next, a separate discussion is provided on using different types of anode materials and their effect on active •OH radical generation, activity, and electrode stability in direct and indirect oxidation and future aspects. The effect of using different synthesis approaches, additives, and doping is discussed separately for each anode. Graphene, carbon nanotubes (CNTs), and metal doping enhance the number of active sites, electrochemical activity, and mineralization current efficiency (MCE) of the anode. While, microwave or laser heating approaches were proved to be an effective, cheaper, and fast alternative to conventional heating. The electrodeposition and nonaqueous solvent synthesis were convenient and environment-friendly techniques for conductive metallic and polymeric film deposition.
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Affiliation(s)
- Devendra Rai
- Department of Chemical Engineering , Indian Institute of Technology Roorkee , Roorkee , Uttarakhand 247667 , India
| | - Shishir Sinha
- Department of Chemical Engineering , Indian Institute of Technology Roorkee , Roorkee , Uttarakhand 247667 , India
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12
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Alvarado JIM, Meinhardt JM, Lin S. Working at the interfaces of data science and synthetic electrochemistry. TETRAHEDRON CHEM 2022; 1. [PMID: 35441154 PMCID: PMC9014485 DOI: 10.1016/j.tchem.2022.100012] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Electrochemistry is quickly entering the mainstream of synthetic organic chemistry. The diversity of new transformations enabled by electrochemistry is to a large extent a consequence of the unique features and reaction parameters in electrochemical systems including redox mediators, applied potential, electrode material, and cell construction. While offering chemists new means to control reactivity and selectivity, these additional features also increase the dimensionalities of a reaction system and complicate its optimization. This challenge, however, has spawned increasing adoption of data science tools to aid reaction discovery as well as development of high-throughput screening platforms that facilitate the generation of high quality datasets. In this Perspective, we provide an overview of recent advances in data-science driven electrochemistry with an emphasis on the opportunities and challenges facing this growing subdiscipline.
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Kiendrebeogo M, Karimi Estahbanati MR, Ouarda Y, Drogui P, Tyagi RD. Electrochemical degradation of nanoplastics in water: Analysis of the role of reactive oxygen species. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 808:151897. [PMID: 34826468 DOI: 10.1016/j.scitotenv.2021.151897] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 11/14/2021] [Accepted: 11/19/2021] [Indexed: 06/13/2023]
Abstract
Microplastics and nanoplastics (NPs) are emerging water contaminants which have recently gained lots of attention because of their effects on the aquatic systems and human life. Most of the previous works on the treatment of plastic pollution in water have been focused on microplastics and a very limited study has been performed on the NPs treatment. In this work, the role of main reactive oxygen species (ROSs) in the electrooxidation (EO) and electro-peroxidation (EO-H2O2) of NPs in water is investigated. In-situ generation of hydroxyl radicals (•OH), persulfates (S2O82-), and hydrogen peroxide (H2O2) were performed using boron-doped diamond (BDD) as the anode, whereas titanium (in EO process) and carbon felt (CF, in EO-H2O2 process) were used as cathode. In the EO process, NPs were mainly oxidized by two types of ROSs on the BDD surface: (i) •OH from water discharge and (ii) SO4•- via S2O82- reaction with •OH. In EO-H2O2 process, NPs were additionally degraded by •OH formed from H2O2 decomposition as well as SO4•- generated from direct or indirect reactions with H2O2. Analysis of the degradation of NPs showed that EO-H2O2 process was around 2.6 times more effective than EO process. The optimum amount of NPs degradation efficiency of 86.8% was obtained using EO-H2O2 process at the current density of 36 mA·cm-2, 0.03 M Na2SO4, pH of 2, and 40 min reaction time. In addition, 3D EEM fluorescence analysis confirmed the degradation of NPs. Finally, the economic analysis showed the treatment of NPs using EO-H2O2 process had an operating cost of 2.3 $US.m-3, which was around 10 times less than the EO process. This study demonstrated that the in-situ generation of ROSs can significantly enhance the degradation of NPs in water.
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Affiliation(s)
- Marthe Kiendrebeogo
- Institut National de la Recherche Scientifique (INRS), Centre Eau Terre Environnement (ETE), 490 rue de la Couronne, Québec G1K 9A9, QC, CANADA
| | - M R Karimi Estahbanati
- Institut National de la Recherche Scientifique (INRS), Centre Eau Terre Environnement (ETE), 490 rue de la Couronne, Québec G1K 9A9, QC, CANADA.
| | - Yassine Ouarda
- Institut National de la Recherche Scientifique (INRS), Centre Eau Terre Environnement (ETE), 490 rue de la Couronne, Québec G1K 9A9, QC, CANADA
| | - Patrick Drogui
- Institut National de la Recherche Scientifique (INRS), Centre Eau Terre Environnement (ETE), 490 rue de la Couronne, Québec G1K 9A9, QC, CANADA.
| | - R D Tyagi
- Distinguished Prof Huzhou University, China; BOSK Bioproducts, Québec, Canada
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14
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Feng D, Shang Z, Xu P, Yue H, Li X. Electrochemical degradation of hydrolyzed polyacrylamide by a novel La-In co-doped PbO2 electrode: Electrode characterization, influencing factors and degradation pathway. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116017] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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15
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Wang C, Zhang T, Yin L, Ni C, Ni J, Hou LA. Enhanced perfluorooctane acid mineralization by electrochemical oxidation using Ti 3+ self-doping TiO 2 nanotube arrays anode. CHEMOSPHERE 2022; 286:131804. [PMID: 34365167 DOI: 10.1016/j.chemosphere.2021.131804] [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: 06/05/2021] [Revised: 08/01/2021] [Accepted: 08/03/2021] [Indexed: 06/13/2023]
Abstract
Perfluorooctanoic acid (PFOA) is of increasing concern due to its worldwide application and extremely environmental persistence. Herein, we demonstrated the electrochemical degradation of PFOA with high efficiency using the Ti3+ self-doping TiO2 nanotube arrays (Ti3+/TiO2-NTA) anode. The fabricated Ti3+/TiO2-NTA anode exhibited vertically aligned uniform nanotubes structure, and was demonstrated good performance on the electrochemical degradation of PFOA in water. The degradation rate, total organic carbon (TOC) removal rate and defluorination rate of PFOA reached 98.1 %, 93.3 % and 74.8 %, respectively, after electrolysis for 90 min at low current density of 2 mA cm-2. The energy consumption (7.6 Wh L-1) of this electrochemical oxidation system using Ti3+/TiO2-NTA anode for PFOA degradation was about 1 order of magnitude lower than using traditional PbO2 anodes. Cathodic polarization could effectively prolong the electrocatalytic activity of the anode by regenerating Ti3+ sites. PFOA molecular was underwent a rapidly mineralization to CO2 and F-, with only low concentration of short-chain perflfluorocarboxylic acids (PFCAs) intermediates identified. A possible electrochemical degradation mechanism of PFOA was proposed, in which the initial direct electron transfer (DET) on the anode to yield PFOA free radicals (C7F15COO•) and hydroxyl radicals (•OH) oxidation were greatly enhanced. This presented study provides a novel approach for the purification of the recalcitrant PFOA from wastewaters.
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Affiliation(s)
- Chong Wang
- College of Resources Adironment, Southwest University, Chongqing, 400716, China.
| | - Tianai Zhang
- College of Resources Adironment, Southwest University, Chongqing, 400716, China
| | - Lifeng Yin
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, China
| | - Chengsheng Ni
- College of Resources Adironment, Southwest University, Chongqing, 400716, China
| | - JiuPai Ni
- College of Resources Adironment, Southwest University, Chongqing, 400716, China
| | - Li-An Hou
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, China; Xi'an High-Tech Institute, Xi'an, 710025, China
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16
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Romero-Soto I, Garcia-Gomez C, Leyva-Soto L, Napoles-Armenta J, Concha-Guzman M, Díaz-Tenorio L, Ulloa-Mercado R, Drogui P, Buelna G, Rentería-Mexia AM, Gortáres-Moroyoqui P. Efficiency of an up-flow Anaerobic Sludge Blanket reactor coupled with an electrochemical system to remove chloramphenicol in swine wastewater. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2022; 85:591-604. [PMID: 35100141 DOI: 10.2166/wst.2021.632] [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
The application and design of treatment systems in wastewater are necessary due to antibiotics' potential toxicity and resistant genes on residual effluent. This work evaluated a coupled bio-electrochemical system to reduce chloramphenicol (CAP) and chemical oxygen demand (COD) on swine wastewater (SWW). SWW characterization found CAP of <10 μg/L and 17,434 mg/L of COD. The coupled system consisted of preliminary use of an Up-flow Anaerobic Sludge Blanket Reactor (UASB) followed by electrooxidation (EO). The UASB reactor (primary stage) was operated for three months at an organic load of 8.76 kg of COD/m3d and 50 mg CAP/L as initial concentration. In EO, we carried out a 22 (time operation and intensity) factorial design with a central composite design; we tried two Ti cathodes and one anode of Ti/PbO2. Optimal conditions obtained in the EO process were 240 min of operation time and 1.51 A of current intensity. It was possible to eliminate 44% of COD and 64.2% of CAP in the preliminary stage. On bio-electrochemicals, total COD and CAP removal were 82.35 and >99.99%, respectively. This coupled system can be applied to eliminate antibiotics and other organic pollutants in agricultural, industrial, municipal, and other wastewaters.
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Affiliation(s)
- Itzel Romero-Soto
- Departamento de Biotecnología y Ciencias Alimentarias, Instituto Tecnológico de Sonora, 5 de febrero 818 Sur, 85000, Ciudad Obregón, Sonora, México E-mail: ; Centro Universitario del Norte, Universidad de Guadalajara, Km. 191, México 45D No. 23, 46200, Jal., México
| | - Celestino Garcia-Gomez
- Departamento de Biotecnología y Ciencias Alimentarias, Instituto Tecnológico de Sonora, 5 de febrero 818 Sur, 85000, Ciudad Obregón, Sonora, México E-mail: ; Facultad de Agronomía, Universidad Autónoma de Nuevo León. Francisco I. Madero S/N, Ex Hacienda el Cañada, 66050, Cd Gral, Escobedo, NL, Mexico
| | - Luis Leyva-Soto
- Departamento de Biotecnología y Ciencias Alimentarias, Instituto Tecnológico de Sonora, 5 de febrero 818 Sur, 85000, Ciudad Obregón, Sonora, México E-mail:
| | - Juan Napoles-Armenta
- Departamento de Biotecnología y Ciencias Alimentarias, Instituto Tecnológico de Sonora, 5 de febrero 818 Sur, 85000, Ciudad Obregón, Sonora, México E-mail: ; Facultad de Agronomía, Universidad Autónoma de Nuevo León. Francisco I. Madero S/N, Ex Hacienda el Cañada, 66050, Cd Gral, Escobedo, NL, Mexico
| | - María Concha-Guzman
- Centro Universitario del Norte, Universidad de Guadalajara, Km. 191, México 45D No. 23, 46200, Jal., México
| | - Lourdes Díaz-Tenorio
- Departamento de Biotecnología y Ciencias Alimentarias, Instituto Tecnológico de Sonora, 5 de febrero 818 Sur, 85000, Ciudad Obregón, Sonora, México E-mail:
| | - Ruth Ulloa-Mercado
- Departamento de Biotecnología y Ciencias Alimentarias, Instituto Tecnológico de Sonora, 5 de febrero 818 Sur, 85000, Ciudad Obregón, Sonora, México E-mail:
| | - Patrick Drogui
- Institut national de la recherche scientifique, 490 Couronne St, Quebec City, Quebec G1 K 9A9, Canada
| | - Gerardo Buelna
- Departamento de Biotecnología y Ciencias Alimentarias, Instituto Tecnológico de Sonora, 5 de febrero 818 Sur, 85000, Ciudad Obregón, Sonora, México E-mail: ; Institut national de la recherche scientifique, 490 Couronne St, Quebec City, Quebec G1 K 9A9, Canada
| | - Ana María Rentería-Mexia
- Departamento de Biotecnología y Ciencias Alimentarias, Instituto Tecnológico de Sonora, 5 de febrero 818 Sur, 85000, Ciudad Obregón, Sonora, México E-mail:
| | - Pablo Gortáres-Moroyoqui
- Departamento de Biotecnología y Ciencias Alimentarias, Instituto Tecnológico de Sonora, 5 de febrero 818 Sur, 85000, Ciudad Obregón, Sonora, México E-mail:
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17
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Lv L, Shen Y, Liu J, Meng X, Gao X, Zhou M, Zhang Y, Gong D, Zheng Y, Zhou Z. Computational Screening of High Activity and Selectivity TM/g-C 3N 4 Single-Atom Catalysts for Electrocatalytic Reduction of Nitrates to Ammonia. J Phys Chem Lett 2021; 12:11143-11150. [PMID: 34756048 DOI: 10.1021/acs.jpclett.1c03005] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Electrocatalytic reduction of nitrates (NO3RR) selectively generating ammonia (NH3) opens up a new idea for treating nitrates in wastewater, which not only reduces nitrates but also obtains the valuable product ammonia. By first-principles calculations, we explore the activity and selectivity for NO3RR to NH3 of TM/g-C3N4 single-atom catalysts. Six TM/g-C3N4 catalysts (TM = Ti, Os, Ru, Cr, Mn, and Pt) are selected by a four-step screening method. Ru/g-C3N4 is the most promising of these six TM/g-C3N4 catalysts because of its lowest energy barrier and extraordinary selectivity. The origin of the NO3RR activity of Ru/g-C3N4 is explained from the viewpoint of NO3- adsorption. In addition, the hydrogen evolution reaction has also been implied to be uncompetitive for the poor adsorption on H atoms. This work provides a screening mechanism for finding new catalysts for NO3RR to NH3, promotes the development of NO3RR, and provides a stimulating impetus for further experimental exploration.
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Affiliation(s)
- Lingling Lv
- School of Physics, Harbin Institute of Technology, Harbin 150001, PR China
| | - Yanqing Shen
- School of Physics, Harbin Institute of Technology, Harbin 150001, PR China
- Heilongjiang Provincial Key Laboratory of Plasma Physics and Application Technology, Harbin Institute of Technology, Harbin 150001, PR China
| | - Jiajia Liu
- School of Physics, Harbin Institute of Technology, Harbin 150001, PR China
| | - Xianghui Meng
- School of Physics, Harbin Institute of Technology, Harbin 150001, PR China
| | - Xu Gao
- School of Physics, Harbin Institute of Technology, Harbin 150001, PR China
| | - Min Zhou
- School of Physics, Harbin Institute of Technology, Harbin 150001, PR China
| | - Yu Zhang
- School of Physics, Harbin Institute of Technology, Harbin 150001, PR China
| | - Dewei Gong
- School of Physics, Harbin Institute of Technology, Harbin 150001, PR China
- Heilongjiang Provincial Key Laboratory of Plasma Physics and Application Technology, Harbin Institute of Technology, Harbin 150001, PR China
| | - Yangdong Zheng
- School of Physics, Harbin Institute of Technology, Harbin 150001, PR China
| | - Zhongxiang Zhou
- School of Physics, Harbin Institute of Technology, Harbin 150001, PR China
- Heilongjiang Provincial Key Laboratory of Plasma Physics and Application Technology, Harbin Institute of Technology, Harbin 150001, PR China
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18
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Nano optical and electrochemical sensors and biosensors for detection of narrow therapeutic index drugs. Mikrochim Acta 2021; 188:411. [PMID: 34741213 DOI: 10.1007/s00604-021-05003-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 08/24/2021] [Indexed: 01/02/2023]
Abstract
For the first time, a comprehensive review is presented on the quantitative determination of narrow therapeutic index drugs (NTIDs) by nano optical and electrochemical sensors and biosensors. NTIDs have a narrow index between their effective doses and those at which they produce adverse toxic effects. Therefore, accurate determination of these drugs is very important for clinicians to provide a clear judgment about drug therapy for patients. Routine analytical techniques have limitations such as being expensive, laborious, and time-consuming, and need a skilled user and therefore the nano/(bio)sensing technology leads to high interest.
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19
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Navarro-Franco JA, Garzón-Zúñiga MA, Drogui P, Buelna G, Gortares-Moroyoqui P, Barragán-Huerta BE, Vigueras-Cortés JM. Electro-Oxidation in Combination with Biological Processes for Removal of Persistent Pollutants in Wastewater: A Review. J ELECTROCHEM SCI TE 2021. [DOI: 10.33961/jecst.2020.01746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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20
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Puthongkham P, Wirojsaengthong S, Suea-Ngam A. Machine learning and chemometrics for electrochemical sensors: moving forward to the future of analytical chemistry. Analyst 2021; 146:6351-6364. [PMID: 34585185 DOI: 10.1039/d1an01148k] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Electrochemical sensors and biosensors have been successfully used in a wide range of applications, but systematic optimization and nonlinear relationships have been compromised for electrode fabrication and data analysis. Machine learning and experimental designs are chemometric tools that have been proved to be useful in method development and data analysis. This minireview summarizes recent applications of machine learning and experimental designs in electroanalytical chemistry. First, experimental designs, e.g., full factorial, central composite, and Box-Behnken are discussed as systematic approaches to optimize electrode fabrication to consider the effects from individual variables and their interactions. Then, the principles of machine learning algorithms, including linear and logistic regressions, neural network, and support vector machine, are introduced. These machine learning models have been implemented to extract complex relationships between chemical structures and their electrochemical properties and to analyze complicated electrochemical data to improve calibration and analyte classification, such as in electronic tongues. Lastly, the future of machine learning and experimental designs in electrochemical sensors is outlined. These chemometric strategies will accelerate the development and enhance the performance of electrochemical devices for point-of-care diagnostics and commercialization.
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Affiliation(s)
- Pumidech Puthongkham
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand. .,Electrochemistry and Optical Spectroscopy Center of Excellence (EOSCE), Chulalongkorn University, Bangkok 10330, Thailand.,Center of Excellence in Responsive Wearable Materials, Chulalongkorn University, Bangkok 10330, Thailand
| | - Supacha Wirojsaengthong
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.
| | - Akkapol Suea-Ngam
- Department of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, London, SW7 2AZ, UK
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21
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Zhang J, Zhou Y, Yao B, Yang J, Zhi D. Current progress in electrochemical anodic-oxidation of pharmaceuticals: Mechanisms, influencing factors, and new technique. JOURNAL OF HAZARDOUS MATERIALS 2021; 418:126313. [PMID: 34329033 DOI: 10.1016/j.jhazmat.2021.126313] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 05/21/2021] [Accepted: 05/31/2021] [Indexed: 06/13/2023]
Abstract
Various pharmaceuticals have been detected in natural water and wastewater bodies, causing threats to water ecosystem and human health. Although electrochemical anodic-oxidation (EAO) has been shown to be efficient for pharmaceuticals degradation from aqueous solution, it still has a distinct need to apply EAO technology for pharmaceuticals removal rationally. This review provides the most recent progress on the mechanisms, influencing factors, and new technique of EAO for pharmaceuticals degradation. The mechanism and superiority of EAO were analyzed. Major influencing factors (e.g., electrode materials, electrochemical reactor, applied current density, anode-cathode distance, electrolyte type and concentration, initial solution pH value, and initial pharmaceuticals concentration) were discussed on the removal of pharmaceuticals. The latest development of reactive electrochemical membranes (REM) was regarded as an emerging EAO technique, and it was also highlighted. This work revealed that the EAO of pharmaceuticals has extraordinary application prospects in the field of water and wastewater treatment.
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Affiliation(s)
- Jia Zhang
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Yaoyu Zhou
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China.
| | - Bin Yao
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Jian Yang
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Dan Zhi
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China.
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22
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Yu L, Chen Z, Hu D, Ge H, Liu L, Liu Z, Liu H, Cui Y, Zhang W, Zou X, Zhang Y, Zhu Q. A novel low temperature aerobic technology with electrochemistry for treating pesticide wastewater: Compliance rate, mathematical models, economic and environmental benefit analysis. BIORESOURCE TECHNOLOGY 2021; 336:125285. [PMID: 34051570 DOI: 10.1016/j.biortech.2021.125285] [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: 04/12/2021] [Revised: 05/07/2021] [Accepted: 05/09/2021] [Indexed: 06/12/2023]
Abstract
In this study, a novel combination system of the tapered variable diameter biological fluidized bed (TVDBFB) with electrochemistry (EC) has been developed and its performances are investigated at different seasons. The results showed that the COD removal efficiency of TVDBFB increased from 61% to 67% and compliance rate increased from 84% to 88% when the carrier packing rate increased from 15% to 30% and temperature was 12 ℃. However, COD removal efficiency and compliance rate increased to 87% and 100% when EC was a post treatment unit. The mathematical models could fit well with the attached biomass, which can be applied to reflect and predict the biomass per unit carrier under different conditions, and the EC removal of COD follow the first-order reaction kinetic model. The economic and environmental benefit analysis indicated that TVDBFB and EC were feasible for treating pesticide wastewater.
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Affiliation(s)
- Liqiang Yu
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, Dalian Minzu University, 18 Liaohe Road West, Dalian Economic and Technological Development Zone, Dalian 116600, PR China; College of Environment and Resources, Dalian Minzu University, 18 Liaohe West Road, Dalian 116600, PR China
| | - Zhaobo Chen
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, Dalian Minzu University, 18 Liaohe Road West, Dalian Economic and Technological Development Zone, Dalian 116600, PR China; College of Environment and Resources, Dalian Minzu University, 18 Liaohe West Road, Dalian 116600, PR China
| | - Dongxue Hu
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, Dalian Minzu University, 18 Liaohe Road West, Dalian Economic and Technological Development Zone, Dalian 116600, PR China; College of Environment and Resources, Dalian Minzu University, 18 Liaohe West Road, Dalian 116600, PR China.
| | - Hui Ge
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, Dalian Minzu University, 18 Liaohe Road West, Dalian Economic and Technological Development Zone, Dalian 116600, PR China; College of Environment and Resources, Dalian Minzu University, 18 Liaohe West Road, Dalian 116600, PR China
| | - Lixue Liu
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, Dalian Minzu University, 18 Liaohe Road West, Dalian Economic and Technological Development Zone, Dalian 116600, PR China; College of Environment and Resources, Dalian Minzu University, 18 Liaohe West Road, Dalian 116600, PR China
| | - Zhiguo Liu
- Shandong Provincial Academy of Architectural Science Co., Ltd, 29 Wuyingshan Street, Jinan 250000, PR China
| | - Hongxia Liu
- Shandong Provincial Academy of Architectural Science Co., Ltd, 29 Wuyingshan Street, Jinan 250000, PR China
| | - Yubo Cui
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, Dalian Minzu University, 18 Liaohe Road West, Dalian Economic and Technological Development Zone, Dalian 116600, PR China; College of Environment and Resources, Dalian Minzu University, 18 Liaohe West Road, Dalian 116600, PR China
| | - Wanjun Zhang
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, Dalian Minzu University, 18 Liaohe Road West, Dalian Economic and Technological Development Zone, Dalian 116600, PR China; College of Environment and Resources, Dalian Minzu University, 18 Liaohe West Road, Dalian 116600, PR China
| | - Xuejun Zou
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, Dalian Minzu University, 18 Liaohe Road West, Dalian Economic and Technological Development Zone, Dalian 116600, PR China; College of Environment and Resources, Dalian Minzu University, 18 Liaohe West Road, Dalian 116600, PR China
| | - Ying Zhang
- School of Resources and Environmental Science, Northeast Agricultural University, 59 Mucai Street, HarBin 150030, PR China
| | - Qiankun Zhu
- Technology Center of Dalian Customs, 58 Lianshan Road, Shahekou Zone, Dalian 116600, PR China
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23
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Recent Trends in Pharmaceuticals Removal from Water Using Electrochemical Oxidation Processes. ENVIRONMENTS 2021. [DOI: 10.3390/environments8080085] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Nowadays, the research on the environmental applications of electrochemistry to remove recalcitrant and priority pollutants and, in particular, drugs from the aqueous phase has increased dramatically. This literature review summarizes the applications of electrochemical oxidation in recent years to decompose pharmaceuticals that are often detected in environmental samples such as carbamazapine, sulfamethoxazole, tetracycline, diclofenac, ibuprofen, ceftazidime, ciprofloxacin, etc. Similar to most physicochemical processes, efficiency depends on many operating parameters, while the combination with either biological or other physicochemical methods seems particularly attractive. In addition, various strategies such as using three-dimensional electrodes or the electrosynthesis of hydrogen peroxide have been proposed to overcome the disadvantages of electrochemical oxidation. Finally, some guidelines are proposed for future research into the applications of environmental electrochemistry for the degradation of xenobiotic compounds and micropollutants from environmental matrices. The main goal of the present review paper is to facilitate future researchers to design their experiments concerning the electrochemical oxidation processes for the degradation of micropollutants/emerging contaminants, especially, some specific drugs considering, also, the existing limitations of each process.
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24
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Uwayezu JN, Carabante I, Lejon T, van Hees P, Karlsson P, Hollman P, Kumpiene J. Electrochemical degradation of per- and poly-fluoroalkyl substances using boron-doped diamond electrodes. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 290:112573. [PMID: 33873022 DOI: 10.1016/j.jenvman.2021.112573] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 04/04/2021] [Accepted: 04/05/2021] [Indexed: 05/28/2023]
Abstract
Electrochemical degradation using boron-doped diamond (BDD) electrodes has been proven to be a promising technique for the treatment of water contaminated with per- and poly-fluoroalkyl substances (PFAS). Various studies have demonstrated that the extent of PFAS degradation is influenced by the composition of samples and electrochemical conditions. This study evaluated the significance of several factors, such as the current density, initial concentration of PFAS, concentration of electrolyte, treatment time, and their interactions on the degradation of PFAS. A 24 factorial design was applied to determine the effects of the investigated factors on the degradation of perfluorooctanoic acid (PFOA) and generation of fluoride in spiked water. The best-performing conditions were then applied to the degradation of PFAS in wastewater samples. The results revealed that current density and time were the most important factors for PFOA degradation. In contrast, a high initial concentration of electrolyte had no significant impact on the degradation of PFOA, whereas it decreased the generation of F-. The experimental design model indicated that the treatment of spiked water under a current density higher than 14 mA cm-2 for 3-4 h could degrade PFOA with an efficiency of up to 100% and generate an F- fraction of approximately 40-50%. The observed high PFOA degradation and a low concentration of PFAS degradation products indicated that the mineralization of PFOA was effective. Under the obtained best conditions, the degradation of PFOA in wastewater samples was 44-70%. The degradation efficiency for other PFAS in these samples was 65-80% for perfluorooctane sulfonic acid (PFOS) and 42-52% for 6-2 fluorotelomer sulfonate (6-2 FTSA). The presence of high total organic carbon (TOC) and chloride contents was found to be an important factor affecting the efficiency of PFAS electrochemical degradation in wastewater samples. The current study indicates that the tested method can effectively degrade PFAS in both water and wastewater and suggests that increasing the treatment time is needed to account for the presence of other oxidizable matrices.
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Affiliation(s)
- Jean Noel Uwayezu
- Waste Science and Technology, Luleå University of Technology, Luleå, Sweden.
| | - Ivan Carabante
- Waste Science and Technology, Luleå University of Technology, Luleå, Sweden
| | - Tore Lejon
- UiT-The Arctic University of Norway, Norway
| | | | | | | | - Jurate Kumpiene
- Waste Science and Technology, Luleå University of Technology, Luleå, Sweden
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25
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Othmani A. Use of Agricultural Material for the Anodic Oxidation of Amaranth with Stainless Steel/PbO
2
Anodes. Chem Eng Technol 2021. [DOI: 10.1002/ceat.202100063] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Amina Othmani
- University of Monastir Faculty of Sciences of Monastir Avenue of the Environment 5019 Monastir Tunisia
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26
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The Influence of the Configuration of Two Electrochemical Reactors on the Process of Removing Atrazine from Water. SUSTAINABILITY 2021. [DOI: 10.3390/su13095267] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In Mexico, atrazine is widely used in agriculture to control broadleaf weeds. The objective of this research was to compare atrazine removal in water and energy consumption between an up-flow cylinder electro-oxidation reactor (UCER) and an up-flow rectangular electro-oxidation reactor (URER) using the response surface methodology. In each reactor, two titanium (Ti) mesh electrodes (cathodes) and one Titanium-Lead Dioxide (Ti-PbO2) mesh electrode (anode). Current intensity effects, electrolysis treatment time, and recirculation flow were evaluated. Synthetic water with 5 mg/L atrazine content was used. Optimum atrazine removal values were obtained at 2 A electric current, 180 min of treatment time, and 200 mL/min recirculation rate for both reactors: in these conditions an atrazine removal of 77.45% and 76.89% for URER and UCER respectively. However, energy consumption showed a significant difference of 137.45 kWh/m3 for URER and 73.63 kWh/m3 for UCER. Regarding energy efficiency, a 60% atrazine removal was reached in both reactors using less energy for UCER at (1.5 A–135 min–150 mL/min–25.8 kWh/m3) and for URER at (0.66 A–135 min–150 mL/min–20.12 kWh/m3).
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27
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Liu S, Li D, Shi D, Zhang G, Luo X, Xu Q, Zhao L, Guo J, Yan G. Construction of a room-temperature phosphorescent quantum dot probe and quantitative detection of thyroxine and carbamazepine. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129582] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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28
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Majumder A, Gupta AK, Ghosal PS, Varma M. A review on hospital wastewater treatment: A special emphasis on occurrence and removal of pharmaceutically active compounds, resistant microorganisms, and SARS-CoV-2. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 2021; 9:104812. [PMID: 33251108 PMCID: PMC7680650 DOI: 10.1016/j.jece.2020.104812] [Citation(s) in RCA: 82] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 11/10/2020] [Accepted: 11/18/2020] [Indexed: 05/05/2023]
Abstract
The hospital wastewater imposes a potent threat to the security of human health concerning its high vulnerability towards the outbreak of several diseases. Furthermore, the outbreak of COVID-19 pandemic demanded a global attention towards monitoring viruses and other infectious pathogens in hospital wastewater and their removal. Apart from that, the presence of various recalcitrant organics, pharmaceutically active compounds (PhACs), etc. imparts a complex pollution load to water resources and ecosystem. In this review, an insight into the occurrence, persistence and removal of drug-resistant microorganisms and infectious viruses as well as other micro-pollutants have been documented. The performance of various pilot/full-scale studies have been evaluated in terms of removal of biochemical oxygen demand (BOD), chemical oxygen demand (COD), total suspended solids (TSS), PhACs, pathogens, etc. It was found that many biological processes, such as membrane bioreactor, activated sludge process, constructed wetlands, etc. provided more than 80% removal of BOD, COD, TSS, etc. However, the removal of several recalcitrant organic pollutants are less responsive to those processes and demands the application of tertiary treatments, such as adsorption, ozone treatment, UV treatment, etc. Antibiotic-resistant microorganisms, viruses were found to be persistent even after the treatment of hospital wastewater, and high dose of chlorination or UV treatment was required to inactivate them. This article circumscribes the various emerging technologies, which have been used to treat PhACs and pathogens. The present review also emphasized the global concern of the presence of SARS-CoV-2 RNA in hospital wastewater and its removal by the existing treatment facilities.
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Affiliation(s)
- Abhradeep Majumder
- School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Ashok Kumar Gupta
- Environmental Engineering Division, Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Partha Sarathi Ghosal
- School of Water Resources, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Mahesh Varma
- Environmental Engineering Division, Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
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29
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Hernández-Rodríguez EA, Castillo-Suárez LA, Teutli-Sequeira EA, Martínez-Miranda V, Vázquez Mejía G, Linares-Hernández I, Santoyo-Tepole F, Benavides A. Electro-oxidation and solar electro-oxidation of commercial carbamazepine: effect of the support electrolyte. SEP SCI TECHNOL 2021. [DOI: 10.1080/01496395.2021.1900251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Affiliation(s)
- Evelyn Anaid Hernández-Rodríguez
- Wastewater treatment and pollution control department, Instituto Interamericano De Tecnología Y Ciencias Del Agua (IITCA), Universidad Autónoma Del Estado De México, Unidad San Cayetano, Toluca, Estado De México, México
| | - Luis Antonio Castillo-Suárez
- Wastewater treatment and pollution control department, Instituto Interamericano De Tecnología Y Ciencias Del Agua (IITCA), Universidad Autónoma Del Estado De México, Unidad San Cayetano, Toluca, Estado De México, México
| | | | - Verónica Martínez-Miranda
- Wastewater treatment and pollution control department, Instituto Interamericano De Tecnología Y Ciencias Del Agua (IITCA), Universidad Autónoma Del Estado De México, Unidad San Cayetano, Toluca, Estado De México, México
| | - Guadalupe Vázquez Mejía
- Wastewater treatment and pollution control department, Instituto Interamericano De Tecnología Y Ciencias Del Agua (IITCA), Universidad Autónoma Del Estado De México, Unidad San Cayetano, Toluca, Estado De México, México
| | - Ivonne Linares-Hernández
- Wastewater treatment and pollution control department, Instituto Interamericano De Tecnología Y Ciencias Del Agua (IITCA), Universidad Autónoma Del Estado De México, Unidad San Cayetano, Toluca, Estado De México, México
| | - Fortunata Santoyo-Tepole
- Research department, Escuela Nacional De Ciencias Biológicas, Instituto Politécnico Nacional (ENCB-IPN). Prolongación De Carpio Y Plan De Ayala S/n, Miguel Hidalgo, Santo Tomás, Ciudad De México, México
| | - Abraham Benavides
- Department of Public Administration, University of North Texas, Denton, Texas, USA
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Simultaneous electrochemical decolorization of Acid Red 33, Reactive Orange 7, Acid Yellow 3 and Malachite Green dyes by electrophoretically prepared Ti/nanoZnO-MWCNTs anode: Experimental design. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115066] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Ren Z, Chen S, Jiang SF, Hu WF, Jiang H. High-Efficiency and Ground-State Atomic Oxygen-Dominant Photodegradation of Carbamazepine by Coupling Chlorine and g-C 3N 4. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.0c05522] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Zhu Ren
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Applied Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Shuo Chen
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Applied Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Shun-Feng Jiang
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Applied Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Wei-Fei Hu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Applied Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Hong Jiang
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Applied Chemistry, University of Science and Technology of China, Hefei 230026, China
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Jiang Y, Zhao H, Liang J, Yue L, Li T, Luo Y, Liu Q, Lu S, Asiri AM, Gong Z, Sun X. Anodic oxidation for the degradation of organic pollutants: Anode materials, operating conditions and mechanisms. A mini review. Electrochem commun 2021. [DOI: 10.1016/j.elecom.2020.106912] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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Xu L, Niu J, Xie H, Ma X, Zhu Y, Crittenden J. Effective degradation of aqueous carbamazepine on a novel blue-colored TiO 2 nanotube arrays membrane filter anode. JOURNAL OF HAZARDOUS MATERIALS 2021; 402:123530. [PMID: 33254736 DOI: 10.1016/j.jhazmat.2020.123530] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 07/06/2020] [Accepted: 07/17/2020] [Indexed: 06/12/2023]
Abstract
The effective electrochemical oxidation of aqueous carbamazepine (CBZ) using a novel blue-colored TiO2 nanotube arrays (BC-TiO2NTA) membrane filter anode was studied. The BC-TiO2NTA was characterized using SEM, TEM, BET, mercury intrusion porosimetry, XPS, XRD, CV, and LSV. The BC-TiO2NTA had reserved pore structure, formed mesopores, specific and electroactive surface areas of 2.01 m2 g-1 and 9.32 cm2 cm-2, respectively. The oxygen evolution potential was 2.61 V vs. SCE. CBZ could be degraded by OH, SO4- and O2- on BC-TiO2NTA in accordance to pseudo-first-order kinetic, which was greatly enhanced in flow-through mode. The optimal kinetic rate constant of CBZ degradation of 0.403 min-1 was achieved at 3 mA cm-2, while energy consumption per order was 0.086 kW h m-3. The mineralization efficiency and mineralization current efficiency were 50.8 % and 9.5 % at 180 min, respectively. The presence of Cl- (0.3-3 mM) accelerated electrochemical degradation of CBZ, while NO3- (0.1-2 mM) inhibited the reaction. Based on density functional theory calculation and UPLC-Orbitrap-MS/MS measurement, we found that electrochemical degradation of CBZ was initialized by cleavage of -CONH2 group and attack of OH on the olefinic double bond of the central heterocyclic ring.
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Affiliation(s)
- Lei Xu
- Research Center for Eco-Environmental Engineering, Dongguan University of Technology, Dongguan, 523808, China
| | - Junfeng Niu
- Research Center for Eco-Environmental Engineering, Dongguan University of Technology, Dongguan, 523808, China.
| | - Hongbin Xie
- Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Environmental and Technology, Dalian University of Technology, Dalian, 116023, China
| | - Xiao Ma
- Research Center for Eco-Environmental Engineering, Dongguan University of Technology, Dongguan, 523808, China
| | - Yunqing Zhu
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - John Crittenden
- Brook Byers Institute of Sustainable Systems, School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, United States
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Kiendrebeogo M, Karimi Estahbanati MR, Khosravanipour Mostafazadeh A, Drogui P, Tyagi RD. Treatment of microplastics in water by anodic oxidation: A case study for polystyrene. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 269:116168. [PMID: 33333450 DOI: 10.1016/j.envpol.2020.116168] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 11/23/2020] [Accepted: 11/25/2020] [Indexed: 06/12/2023]
Abstract
Water pollution by microplastics (MPs) is a contemporary issue which has recently gained lots of attentions. Despite this, very limited studies were conducted on the degradation of MPs. In this paper, we reported the treatment of synthetic mono-dispersed suspension of MPs by using electrooxidation (EO) process. MPs synthetic solution was prepared with distilled water and a commercial polystyrene solution containing a surfactant. In addition to anode material, different operating parameters were investigated such as current intensity, anode surface, electrolyte type, electrolyte concentration, and reaction time. The obtained results revealed that the EO process can degrade 58 ± 21% of MPs in 1 h. Analysis of the operating parameters showed that the current intensity, anode material, electrolyte type, and electrolyte concentration substantially affected the MPs removal efficiency, whereas anode surface area had a negligible effect. In addition, dynamic light scattering analysis was performed to evaluate the size distribution of MPs during the degradation. The combination of dynamic light scattering, scanning electron microscopy, total organic carbon, and Fourier-transform infrared spectroscopy results suggested that the MPs did not break into smaller particles and they degrade directly into gaseous products. This work demonstrated that EO is a promising process for degradation of MPs in water without production of any wastes or by-products.
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Affiliation(s)
- Marthe Kiendrebeogo
- Institut National de la recherche scientifique (INRS) - Centre Eau Terre Environnement (ETE), 490 rue de la Couronne, Québec (QC), Canada, G1K 9A9
| | - M R Karimi Estahbanati
- Institut National de la recherche scientifique (INRS) - Centre Eau Terre Environnement (ETE), 490 rue de la Couronne, Québec (QC), Canada, G1K 9A9
| | - Ali Khosravanipour Mostafazadeh
- Institut National de la recherche scientifique (INRS) - Centre Eau Terre Environnement (ETE), 490 rue de la Couronne, Québec (QC), Canada, G1K 9A9
| | - Patrick Drogui
- Institut National de la recherche scientifique (INRS) - Centre Eau Terre Environnement (ETE), 490 rue de la Couronne, Québec (QC), Canada, G1K 9A9.
| | - R D Tyagi
- Institut National de la recherche scientifique (INRS) - Centre Eau Terre Environnement (ETE), 490 rue de la Couronne, Québec (QC), Canada, G1K 9A9
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Zou R, Tang K, Angelidaki I, Andersen HR, Zhang Y. An innovative microbial electrochemical ultraviolet photolysis cell (MEUC) for efficient degradation of carbamazepine. WATER RESEARCH 2020; 187:116451. [PMID: 33007673 DOI: 10.1016/j.watres.2020.116451] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 09/03/2020] [Accepted: 09/22/2020] [Indexed: 06/11/2023]
Abstract
Discharge of recalcitrant pharmaceuticals into aquatic environments can lead to serious negative environmental effects. While traditional wastewater treatment plants (WWTPs) are efficient for a wide range of non-toxic pollutants (i.e. ammonia), some wastewater streams contain recalcitrant toxic trace micropollutants such as pharmaceuticals that cannot be removed by the treatment processes that are typically employed in common WWTPs. Herein, an innovative 20 L microbial electrochemical ultraviolet photolysis cell (MEUC) was developed for the first time by the integration of a UV irradiation and a bioelectrochemical system, which exhibited efficient treatment of carbamazepine-a model pharmaceutical compound. Notably, neither the UV irradiation nor the bioelectrochemical system alone could effectively eliminate carbamazepine. The effect of operational parameters including applied voltage, cathodic aeration rate, UV intensity, and hydraulic retention time were evaluated. The obtained results elucidated that the degradation of carbamazepine was consistent with pseudo-first-order reaction kinetics, and required a lower energy input than traditional advanced oxidation processes. Five main transformation products were identified, and probable transformation pathways were established. Furthermore, the eco-toxicity as tested by Vibrio fischeri showed no significant bioluminescence inhibition by the treated carbamazepine effluent. Finally, the MEUC system was further tested with a real wastewater matrix, which again exhibited effective removal of carbamazepine. This paper provides a proof-of-concept verification of the novel MEUC system, which contributes insight for the subsequent vigorous development of the application of such efficient and cost-effective technologies for the treatment of trace pharmaceuticals wastewater.
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Affiliation(s)
- Rusen Zou
- Department of Environmental Engineering, Technical University of Denmark, DK-2800 Lyngby, Denmark
| | - Kai Tang
- Department of Environmental Engineering, Technical University of Denmark, DK-2800 Lyngby, Denmark
| | - Irini Angelidaki
- Department of Environmental Engineering, Technical University of Denmark, DK-2800 Lyngby, Denmark
| | - Henrik Rasmus Andersen
- Department of Environmental Engineering, Technical University of Denmark, DK-2800 Lyngby, Denmark
| | - Yifeng Zhang
- Department of Environmental Engineering, Technical University of Denmark, DK-2800 Lyngby, Denmark.
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Ouarda Y, Trellu C, Lesage G, Rivallin M, Drogui P, Cretin M. Electro-oxidation of secondary effluents from various wastewater plants for the removal of acetaminophen and dissolved organic matter. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 738:140352. [PMID: 32806341 DOI: 10.1016/j.scitotenv.2020.140352] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 06/03/2020] [Accepted: 06/17/2020] [Indexed: 05/03/2023]
Abstract
Electro-oxidation of acetaminophen (ACT) in three different doped secondary effluents collected from a conventional Municipal Waste Water Treatment Plant (MWWTP), a MWWTP using a membrane bioreactor (WWTP MBR) and a lab-scale MBR treating source-separated urine (Urine MBR) was investigated by electro-Fenton (EF) coupled with anodic oxidation (AO) using sub-stoichiometric titanium oxide anode (Ti4O7). After 8 h of treatment, 90 ± 15%, 76 ± 3.8% and 46 ± 1.3% of total organic carbon removal was obtained for MWWTP, MWWTP-MBR and Urine-MBR respectively, at a current intensity of 250 mA, pH of 3 and [Fe2+] = 0.2 mM. Faster degradation of ACT was observed in the WWTP MBR because of the lower amount of competitive organic matter, however, >99% degradation of ACT was obtained after 20 min for all effluents. The acute toxicity of the treated effluent was measured using Microtox® tests. Results showed an initial increase in toxicity, which could be assigned to formation of more toxic by-products than parent compounds. From 3D excitation and emission matrix fluorescence (3DEEM), different reactivity was observed according to the nature of the organic matter. Particularly, an increase of low molecular weight organic compounds fluorescence was observed during Urine MBR treatment. This could be linked to the slow decrease of the acute toxicity during Urine MBR treatment and ascribed to the formation and recalcitrance of toxic organic nitrogen and chlorinated organic by-products. By comparison, the acute toxicity of other effluents decreased much more rapidly. Finally, energy consumption was calculated according to the objective to achieve (degradation, absence of toxicity, mineralization).
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Affiliation(s)
- Yassine Ouarda
- Institut National de la Recherche Scientifique Eau Terre et Environnement (INRS-ETE), Université du Quebec, 490 rue de la Couronne, Quebec, QC G1K 9A9, Canada; Institut Européen des Membranes, IEM, Université Montpellier, CNRS, ENSCM, Place Eugène Bataillon, 34095 Montpellier cedex 5, France
| | - Clément Trellu
- Institut Européen des Membranes, IEM, Université Montpellier, CNRS, ENSCM, Place Eugène Bataillon, 34095 Montpellier cedex 5, France; Laboratoire Géomatériaux et Environnement, LGE - Université Paris-Est, EA 4508, UPEM, 77454 Marne-la-Vallée, France
| | - Geoffroy Lesage
- Institut Européen des Membranes, IEM, Université Montpellier, CNRS, ENSCM, Place Eugène Bataillon, 34095 Montpellier cedex 5, France
| | - Matthieu Rivallin
- Institut Européen des Membranes, IEM, Université Montpellier, CNRS, ENSCM, Place Eugène Bataillon, 34095 Montpellier cedex 5, France
| | - Patrick Drogui
- Institut National de la Recherche Scientifique Eau Terre et Environnement (INRS-ETE), Université du Quebec, 490 rue de la Couronne, Quebec, QC G1K 9A9, Canada
| | - Marc Cretin
- Institut Européen des Membranes, IEM, Université Montpellier, CNRS, ENSCM, Place Eugène Bataillon, 34095 Montpellier cedex 5, France.
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Xia Y, Wang G, Guo L, Dai Q, Ma X. Electrochemical oxidation of Acid Orange 7 azo dye using a PbO 2 electrode: Parameter optimization, reaction mechanism and toxicity evaluation. CHEMOSPHERE 2020; 241:125010. [PMID: 31605993 DOI: 10.1016/j.chemosphere.2019.125010] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 09/15/2019] [Accepted: 09/28/2019] [Indexed: 06/10/2023]
Abstract
In this study, electrochemical oxidation of Acid Orange 7 (AO 7) azo dye has been investigated using a Fe-doped PbO2 electrode. The degradation of AO 7 followed pseudo-first-order reaction kinetics. The removals of AO 7, chemical oxygen demand (COD) and total organic carbon (TOC) were 87.15%, 49.88% and 44.94% after 60 min of electrolysis at the optimal conditions (Na2SO4 concentration 0.1 M, initial pH 5, initial AO 7 concentration 100 mg L-1 and applied current density 20 mA cm-2), respectively. And the corresponding degradation rate constant was 0.035 min-1. The intermediates formed during electrochemical process were identified, and a possible degradation pathway was proposed, which was initiated by the oxidation of azo bond (-NN-), hydroxylation and substitution reaction of -NH2 and -SO3H under the attack of OH, and ended with the formation of mineralization products such as NH4+, NO3-, SO42-, CO2 and H2O. The toxicity of treated AO 7 solution towards Vibrio fischeri increased slightly at first and then rapidly reduced to non-toxicity with prolonging time. The results indicate that electrochemical oxidation of AO 7 using Fe-doped PbO2 electrode is a promising way.
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Affiliation(s)
- Yijing Xia
- College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310018, China.
| | - Guoqin Wang
- College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310018, China
| | - Lidong Guo
- College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310018, China
| | - Qizhou Dai
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Xiangjuan Ma
- College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310018, China
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38
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Fan X, Liu H, Wang J, Tang K. Investigation of double network hydrogel with controllable swelling behavior by response surface methodology. J Appl Polym Sci 2019. [DOI: 10.1002/app.48805] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xialian Fan
- College of Materials Science and EngineeringZhengzhou University Zhengzhou 450001 China
| | - Hui Liu
- College of Materials Science and EngineeringZhengzhou University Zhengzhou 450001 China
| | - Jingru Wang
- College of Materials Science and EngineeringZhengzhou University Zhengzhou 450001 China
| | - Keyong Tang
- College of Materials Science and EngineeringZhengzhou University Zhengzhou 450001 China
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Liu S, Liu R, Zhang Y, Han W, Li J, Sun X, Shen J, Wang L. Development of a 3D ordered macroporous RuO 2 electrode for efficient pyrazole removal from water. CHEMOSPHERE 2019; 237:124471. [PMID: 31401428 DOI: 10.1016/j.chemosphere.2019.124471] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 07/24/2019] [Accepted: 07/26/2019] [Indexed: 06/10/2023]
Abstract
Inability to remove biologically toxic and persistent contaminants is a critical issue in traditional water treatment processes. In this study, a novel 3D macroporous RuO2 (3D-RuO2) electrode with uniform and interconnected cavities has been fabricated via templated electrodeposition approach for treatment of persistent pyrazole. The physicochemical properties of the electrodes are characterized by means of SEM, BET, XRD, LSV and CV measurements. The results show that structural features of the 3D-RuO2 play important roles in the electrocatalysis performance. Thanks to the abundant crystal defect sites, 3D-RuO2 electrode possesses more mesopores within the skeleton, resulting in 17.9 and 2.2 times larger specific surface area compared to traditional flat thermal-deposited (TF-RuO2) and electrodeposited RuO2 (EF-RuO2) respectively. At a current density of 5 mA cm-2, the pyrazole removal rate on 3D-RuO2 is 1.7 times and 1.3 times that of TF-RuO2 and EF-RuO2. The energy consumption for 50% of pyrazole removal on 3D-RuO2 is 0.05 kWh g-1pyrazole, much lower than that of TF-RuO2 (0.11 kWh g-1pyrazole) and EF-RuO2 (0.075 kWh g-1pyrazole). The improved removal performance of 3D-RuO2 electrode is attributed to its strong electro-adsorption capacity (270.3 μg cm-2), leading to enhanced mass transfer of pollutants to the electrode surface. The mass transfer coefficient (κm) is estimated as 2.4 × 10-6 m s-1 for 3D-RuO2, which is 3.9 and 2.3 times as much as that of TF-RuO2 and EF-RuO2. Finally, contribution of different electron transfer approaches to pyrazole degradation under anodic polarization was investigated by ROS scavenging experiments.
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Affiliation(s)
- Siqi Liu
- Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Ruiqian Liu
- Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China.
| | - Yonghao Zhang
- School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng, 224051, China
| | - Weiqing Han
- Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China.
| | - Jiansheng Li
- Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Xiuyun Sun
- Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Jinyou Shen
- Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Lianjun Wang
- Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
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Degradation of ciprofloxacin using electrochemical oxidation by Ti/nanoSnO2-MWCNT electrode: Optimization and modelling through central composite design. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2019.06.032] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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41
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Han S, Hassan SU, Zhu Y, Zhang S, Liu H, Zhang S, Li J, Wang Z, Zhao C. Significance of Activated Carbon Fiber as Cathode in Electro/Fe3+/Peroxydisulfate Oxidation Process for Removing Carbamazepine in Aqueous Environment. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b02915] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shiqiang Han
- College of Water Conservancy & Architectural Engineering, Shihezi University, Shihezi 832000, P. R. China
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, P. R. China
- Key Laboratory of the Three Gorges Reservoir Region’s Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, P. R. China
| | - Shabi Ul Hassan
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, P. R. China
- Key Laboratory of the Three Gorges Reservoir Region’s Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, P. R. China
| | - Yunhua Zhu
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, P. R. China
- Key Laboratory of the Three Gorges Reservoir Region’s Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, P. R. China
| | - Shuai Zhang
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, P. R. China
- Key Laboratory of the Three Gorges Reservoir Region’s Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, P. R. China
| | - Hongguang Liu
- College of Water Conservancy & Architectural Engineering, Shihezi University, Shihezi 832000, P. R. China
- Xinjiang Production & Construction Group, Key Laboratory of Modern Water-Saving Irrigation, Shihezi 832000, P. R. China
| | - Sen Zhang
- College of Water Conservancy & Architectural Engineering, Shihezi University, Shihezi 832000, P. R. China
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, P. R. China
- Key Laboratory of the Three Gorges Reservoir Region’s Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, P. R. China
| | - Junfeng Li
- College of Water Conservancy & Architectural Engineering, Shihezi University, Shihezi 832000, P. R. China
| | - Zhaoyang Wang
- College of Water Conservancy & Architectural Engineering, Shihezi University, Shihezi 832000, P. R. China
| | - Chun Zhao
- College of Water Conservancy & Architectural Engineering, Shihezi University, Shihezi 832000, P. R. China
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, P. R. China
- Key Laboratory of the Three Gorges Reservoir Region’s Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, P. R. China
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Majumder A, Gupta B, Gupta AK. Pharmaceutically active compounds in aqueous environment: A status, toxicity and insights of remediation. ENVIRONMENTAL RESEARCH 2019; 176:108542. [PMID: 31387068 DOI: 10.1016/j.envres.2019.108542] [Citation(s) in RCA: 97] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 06/12/2019] [Accepted: 06/17/2019] [Indexed: 05/22/2023]
Abstract
Pharmaceutically active compounds (PhACs) have pernicious effects on all kinds of life forms because of their toxicological effects and are found profoundly in various wastewater treatment plant influents, hospital effluents, and surface waters. The concentrations of different pharmaceuticals were found in alarmingly high concentrations in various parts of the globe, and it was also observed that the concentration of PhACs present in the water could be eventually related to the socio-economic conditions and climate of the region. Drinking water equivalent limit for each PhAC has been calculated and compared with the occurrence data from various continents. Since these compounds are recalcitrant towards conventional treatment methods, while advanced oxidation processes (AOPs) have shown better efficiency in degrading these PhACs. The performance of the AOPs have been evaluated based on percentage removal, time, and electrical energy consumed to degrade different classes of PhACs. Ozone based AOPs were found to be favorable because of their low treatment time, low cost, and high efficiency. However, complete degradation cannot be achieved by these processes, and various transformation products are formed, which may be more toxic than the parent compounds. The various transformation products formed from various PhACs during treatment have been highlighted. Significant stress has been given on the role of various process parameters, water matrix, oxidizing radicals, and the mechanism of degradation. Presence of organic compounds, nitrate, and phosphate usually hinders the degradation process, while chlorine and sulfate showed a positive effect. The role of individual oxidizing radicals, interfering ions, and pH demonstrated dissimilar effects on different groups of PhACs.
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Affiliation(s)
- Abhradeep Majumder
- School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India.
| | - Bramha Gupta
- School of Water Resources, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India.
| | - Ashok Kumar Gupta
- Environmental Engineering Division, Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India.
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Ymélé E, Jiokeng SLZ, Nde DB, Kamgaing T, Tonlé IK. Simultaneous Voltammetric Determination of Cd2+, Pb2+, and Hg2+ Ions Using Aminosepiolite-Coated Glassy Carbon Electrode: Optimization of Detection Parameters via Response Surface Methodology. JOURNAL OF ANALYSIS AND TESTING 2019. [DOI: 10.1007/s41664-019-00086-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Liu K, Yu JCC, Dong H, Wu JCS, Hoffmann MR. Degradation and Mineralization of Carbamazepine Using an Electro-Fenton Reaction Catalyzed by Magnetite Nanoparticles Fixed on an Electrocatalytic Carbon Fiber Textile Cathode. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:12667-12674. [PMID: 30346735 PMCID: PMC6222555 DOI: 10.1021/acs.est.8b03916] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Pharmaceutical wastes are considered to be important pollutants even at low concentrations. In this regard, carbamazepine has received significant attention due to its negative effect on both ecosystem and human health. However, the need for acidic conditions severely hinders the use of conventional Fenton reagent reactions for the control and elimination of carbamazepine in wastewater effluents and drinking water influents. Herein, we report of the synthesis and use of flexible bifunctional nanoelectrocatalytic textile materials, Fe3O4-NP@CNF, for the effective degradation and complete mineralization of carbamazepine in water. The nonwoven porous structure of the composite binder-free Fe3O4-NP@CNF textile is used to generate H2O2 on the carbon nanofiber (CNF) substrate by O2 reduction. In addition, ·OH radical is generated on the surface of the bonded Fe3O4 nanoparticles (NPs) at low applied potentials (-0.345 V). The Fe3O4-NPs are covalently bonded to the CNF textile support with a high degree of dispersion throughout the fiber matrix. The dispersion of the nanosized catalysts results in a higher catalytic reactivity than existing electro-Fenton systems. For example, the newly synthesized Fe3O4-NPs system uses an Fe loading that is 2 orders of magnitude less than existing electro-Fenton systems, coupled with a current efficiency that is higher than electrolysis using a boron-doped diamond electrode. Our test results show that this process can remove carbamazepine with high pseudo-first-order rate constants (e.g., 6.85 h-1) and minimal energy consumption (0.239 kW·h/g carbamazepine). This combination leads to an efficient and sustainable electro-Fenton process.
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Affiliation(s)
- Kai Liu
- Department of Environmental Science and Engineering, California Institute of Technology, Pasadena, California 91126, United States
| | - Joseph Che-Chin Yu
- Department of Environmental Science and Engineering, California Institute of Technology, Pasadena, California 91126, United States
- Department of Chemical Engineering, National
Taiwan University, Taipei 10617, Taiwan
| | - Heng Dong
- Department of Environmental Science and Engineering, California Institute of Technology, Pasadena, California 91126, United States
| | - Jeffrey C. S. Wu
- Department of Chemical Engineering, National
Taiwan University, Taipei 10617, Taiwan
| | - Michael R. Hoffmann
- Department of Environmental Science and Engineering, California Institute of Technology, Pasadena, California 91126, United States
- (M.R.H.)
Tel +1 626 395 4391; Fax +1 626 395 4391; e-mail
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Romero-Soto IC, Dia O, Leyva-Soto LA, Drogui P, Buelna G, Díaz-Tenorio LM, Ulloa-Mercado RG, Gortáres-Moroyoqui P. Degradation of Chloramphenicol in Synthetic and Aquaculture Wastewater Using Electrooxidation. JOURNAL OF ENVIRONMENTAL QUALITY 2018; 47:805-811. [PMID: 30025033 DOI: 10.2134/jeq2017.12.0475] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Chloramphenicol (CAP) is a broad-spectrum antibiotic widely used in animal farming and aquaculture industries. Despite its ban in many countries around the world, it is still used in several developing countries, with harmful effects on the surrounding aquatic environment. In this study, an electrooxidation process using a Ti/PbO anode was used to investigate the degradation of CAP in both synthetic solution and real aquaculture wastewater. A central composite design was used to determine the optimum conditions for CAP removal. Current intensity and treatment time had the most impact on the CAP removal. These two factors accounted for ∼90% of CAP removal. The optimum conditions found in this study were current intensity of 0.65 A, treatment time of 34 min, and CAP initial concentration of 0.5 mg L. Under these conditions, 98.7% of CAP removal was achieved with an energy consumption of 4.65 kW h m. The antibiotic was not present in the aquaculture wastewater, which received 0.5 mg L of CAP and was treated (by electrooxidation) under the optimum conditions. A complete removal of CAP was obtained after 34 min of treatment. According to these results, electrooxidation presents an option for the removal of antibiotics, secondary compounds, and other organic and inorganic compounds from solution.
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Ouarda Y, Tiwari B, Azaïs A, Vaudreuil MA, Ndiaye SD, Drogui P, Tyagi RD, Sauvé S, Desrosiers M, Buelna G, Dubé R. Synthetic hospital wastewater treatment by coupling submerged membrane bioreactor and electrochemical advanced oxidation process: Kinetic study and toxicity assessment. CHEMOSPHERE 2018; 193:160-169. [PMID: 29131974 DOI: 10.1016/j.chemosphere.2017.11.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 11/02/2017] [Accepted: 11/03/2017] [Indexed: 06/07/2023]
Abstract
In this work, the combination of membrane bioreactor (MBR) and electro-oxidation (EO) process was studied for the treatment of a synthetic hospital wastewater fortified with four pharmaceutical pollutants namely carbamazepine (CBZ), ibuprofen (IBU), estradiol (E-E) at a concentration of 10 μg L-1 venlafaxine (VEN) at 0.2 μg L-1. Two treatment configurations were studied: EO process as pre-treatment and post-treatment. Wastewater treatment with MBR alone shows high removal percentages of IBU and E-E (∼90%). Unlikely for CBZ and VEN, a low elimination percentage (∼10%) was observed. The hydraulic and the solid retention times (HRT and SRT) were 18 h and 140 d respectively, while the biomass concentration in the MBR was 16.5 g L-1. To enhance pharmaceuticals elimination, an EO pretreatment was conducted during 40 min at 2 A. This configuration allowed a 92% removal for VEN, which was far greater than both treatments alone, with lower than 30% and 50% for MBR and EO, respectively. The MBR-EO coupling (EO as post-treatment) allows high removal percentages (∼97%) of the four pharmaceutical pollutants after 40 min of treatment at a current intensity of 0.5 A with Nb/BDD as electrodes. This configuration appears to be very effective compared to the first configuration (EO-MBR) where EO process is used as a pre-treatment. Toxicity assessment showed that the treated effluent of this configuration is not toxic to Daphnia magna except at 100% v/v. The MBR-EO coupling appears to be a promising treatment for contaminated hospital effluents.
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Affiliation(s)
- Yassine Ouarda
- Institut National de La Recherche Scientifique (INRS), 490 rue de La Couronne, Québec City, QC, G1K 9A9, Canada
| | - Bhagyashree Tiwari
- Institut National de La Recherche Scientifique (INRS), 490 rue de La Couronne, Québec City, QC, G1K 9A9, Canada
| | - Antonin Azaïs
- Institut National de La Recherche Scientifique (INRS), 490 rue de La Couronne, Québec City, QC, G1K 9A9, Canada
| | | | - Sokhna Dieng Ndiaye
- Institut National de La Recherche Scientifique (INRS), 490 rue de La Couronne, Québec City, QC, G1K 9A9, Canada; Centre d'Expertise en analyse environnementale du Québec, ministère du Développement durable, de L'Environnement, et de La Lutte contre Les changements climatiques, 2700 rue Einstein, Québec City, QC GIP 3W8, Canada
| | - Patrick Drogui
- Institut National de La Recherche Scientifique (INRS), 490 rue de La Couronne, Québec City, QC, G1K 9A9, Canada.
| | - Rajeshwhar Dayal Tyagi
- Institut National de La Recherche Scientifique (INRS), 490 rue de La Couronne, Québec City, QC, G1K 9A9, Canada
| | - Sébastien Sauvé
- Université de Montréal, 2900 Edouard Montpetit, H3C 3J7, Montréal, QC, Canada
| | - Mélanie Desrosiers
- Centre d'Expertise en analyse environnementale du Québec, ministère du Développement durable, de L'Environnement, et de La Lutte contre Les changements climatiques, 2700 rue Einstein, Québec City, QC GIP 3W8, Canada
| | - Gerardo Buelna
- Centre de Recherche Industrielle du Québec (CRIQ), 333 Franquet, Québec City, QC, G1P 4C7, Canada
| | - Rino Dubé
- Centre de Recherche Industrielle du Québec (CRIQ), 333 Franquet, Québec City, QC, G1P 4C7, Canada
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Rahmani AR, Nematollahi D, Samarghandi MR, Samadi MT, Azarian G. A combined advanced oxidation process: Electrooxidation-ozonation for antibiotic ciprofloxacin removal from aqueous solution. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2017.11.067] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Ghasemian S, Nasuhoglu D, Omanovic S, Yargeau V. Photoelectrocatalytic degradation of pharmaceutical carbamazepine using Sb-doped Sn 80% -W 20% -oxide electrodes. Sep Purif Technol 2017. [DOI: 10.1016/j.seppur.2017.07.007] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Zhang Y, Wei K, Xu A, Han W, Sun X, Li J, Shen J, Wang L. Pesticide tailwater deeply treated by tubular porous electrode reactor (TPER): Purpose for discharging and cost saving. CHEMOSPHERE 2017; 185:86-93. [PMID: 28688340 DOI: 10.1016/j.chemosphere.2017.06.115] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 06/25/2017] [Accepted: 06/27/2017] [Indexed: 06/07/2023]
Abstract
Pesticide tailwater often contains residual and toxic contaminants of triazole fungicides (TFs) due to their poor biodegradability which will do great harm to local aquatic systems. For this case, a novel electrochemical reactor (TPER) equipped a tubular porous RuO2-Sb2O5-SnO2 electrode was assembled and then employed to deeply treat pesticide tailwater. Characterizations of the electrode studied by SEM, EDS and XRD analysis indicated that it owns a porous structure and a compact and crack-free surface. Influence of the porous structure on electrochemical property was examined by cyclic voltammetry and normal pulse voltammetry. The results indicated that porous structure can not only enlarge electrochemical active area but also increase mass transfer efficiency by 5.7-fold in flow-through mode compared with batch mode. Furthermore, the optimal operating conditions of TPER were flow rate of 250 mL min-1 and current density of 4 mA cm-2. After 1.5 h treatment under these conditions, Tz, TC and PPC were removed by 98.9%, 99.0% and 98.4% respectively, while 81.9% of COD was also removed. Additionally, the microbial content was dropped to 0 CFU mL-1 and fecal coliform was lower than 2 MPN (100 mL)-1. All results demonstrated that the treated tailwater has met the Class 1 of National Discharge Standard of China. Especially, operating cost of TPER was only $ 0.33 per ton. The excellent performance together with the low cost indicated that TPER is a promising option for depth treatment of industrial tailwater.
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Affiliation(s)
- Yonghao Zhang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, Jiangsu Province, China
| | - Kajia Wei
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, Jiangsu Province, China
| | - Anlin Xu
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, Jiangsu Province, China
| | - Weiqing Han
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, Jiangsu Province, China.
| | - Xiuyun Sun
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, Jiangsu Province, China
| | - Jiansheng Li
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, Jiangsu Province, China
| | - Jinyou Shen
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, Jiangsu Province, China
| | - Lianjun Wang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, Jiangsu Province, China.
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Mook WT, Ajeel MA, Aroua MK, Szlachta M. The application of iron mesh double layer as anode for the electrochemical treatment of Reactive Black 5 dye. J Environ Sci (China) 2017; 54:184-195. [PMID: 28391928 DOI: 10.1016/j.jes.2016.02.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 02/10/2016] [Accepted: 02/15/2016] [Indexed: 06/07/2023]
Abstract
In this work a novel anode configuration consisting of an iron mesh double layer is proposed for the electrochemical treatment of wastewater. The removal of Reactive Black 5 dye (RB5) from synthetic contaminated water was used as a model system. At a constant anode surface area, identical process operating parameters and batch process mode, the iron mesh double layer electrode showed better performance compared to the conventional single layer iron mesh. The double layer electrode was characterized by RB5 and chemical oxygen demand (COD) removal efficiency of 98.2% and 97.7%, respectively, kinetic rate constant of 0.0385/min, diffusion coefficient of 4.9×10-5cm2/sec and electrical energy consumption of 20.53kWh/kgdye removed. In the continuous flow system, the optimum conditions suggested by Response Surface Methodology (RSM) are: initial solution pH of 6.29, current density of 1.6mA/cm2, electrolyte dose of 0.15g/L and flow rate of 11.47mL/min which resulted in an RB5 removal efficiency of 81.62%.
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Affiliation(s)
- Wei Tze Mook
- Department of Chemical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia.
| | - Mohammed A Ajeel
- Department of Chemical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | | | - Małgorzata Szlachta
- Department of Environmental Engineering, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
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