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Singh A, Majumder A, Saidulu D, Bhattacharya A, Bhatnagar A, Gupta AK. Oxidative treatment of micropollutants present in wastewater: A special emphasis on transformation products, their toxicity, detection, and field-scale investigations. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 354:120339. [PMID: 38401495 DOI: 10.1016/j.jenvman.2024.120339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 01/23/2024] [Accepted: 02/08/2024] [Indexed: 02/26/2024]
Abstract
Micropollutants have become ubiquitous in aqueous environments due to the increased use of pharmaceuticals, personal care products, pesticides, and other compounds. In this review, the removal of micropollutants from aqueous matrices using various advanced oxidation processes (AOPs), such as photocatalysis, electrocatalysis, sulfate radical-based AOPs, ozonation, and Fenton-based processes has been comprehensively discussed. Most of the compounds were successfully degraded with an efficiency of more than 90%, resulting in the formation of transformation products (TPs). In this respect, degradation pathways with multiple mechanisms, including decarboxylation, hydroxylation, and halogenation, have been illustrated. Various techniques for the analysis of micropollutants and their TPs have been discussed. Additionally, the ecotoxicity posed by these TPs was determined using the toxicity estimation software tool (T.E.S.T.). Finally, the performance and cost-effectiveness of the AOPs at the pilot scale have been reviewed. The current review will help in understanding the treatment efficacy of different AOPs, degradation pathways, and ecotoxicity of TPs so formed.
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Affiliation(s)
- Adarsh Singh
- Environmental Engineering Division, Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Abhradeep Majumder
- School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Duduku Saidulu
- Environmental Engineering Division, Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Animesh Bhattacharya
- School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Amit Bhatnagar
- Department of Separation Science, LUT School of Engineering Science, LUT University, Sammonkatu 12, Mikkeli FI-50130, Finland
| | - Ashok Kumar Gupta
- Environmental Engineering Division, Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India.
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Zhang S, Xie Y, Manoli K, Ji Y, Yu X, Feng M. Degradation of methotrexate by unactivated and solar-activated peroxymonosulfate in water: Moiety-specific reaction kinetics and transformation product-associated risks. WATER RESEARCH 2023; 246:120741. [PMID: 37864882 DOI: 10.1016/j.watres.2023.120741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 09/08/2023] [Accepted: 10/12/2023] [Indexed: 10/23/2023]
Abstract
Anticancer drugs have raised worldwide concern owing to their ubiquitous occurrence and ecological risks, necessitating the development of efficient removal strategies in water and wastewater treatment. Although peroxymonosulfate (PMS) is known to be a promising chemical in water decontamination, limited information is available regarding the removal efficiency of anticancer drugs by PMS and solar/PMS systems. This study first reports the moiety-specific reaction kinetics and mechanisms of methotrexate (MTX), an anticancer drug with widespread attention, by PMS (unactivated) and solar-activated PMS in water. It was found that MTX abatement by the direct PMS oxidation followed second-order kinetics, and the pH-dependent rate constants increased from 0.4 M-1 s-1 (pH 5.0) to 1.3 M-1 s-1 (pH 8.0), with a slight decrease to 1.1 M-1 s-1 at pH 9.0. The presence of chloride and bromide exerted no obvious influence on the removal of MTX by PMS. Furthermore, the chemical reactivity of MTX and its seven substructures with different reactive species was evaluated, and the degradation contributions of the reactive species involved were quantitatively analyzed in the solar/PMS system. The product analysis suggested similar reaction pathways of MTX by PMS and solar/PMS systems. The persistence, bioaccumulation, and toxicity of the transformation products were investigated, indicating treatment-driven risks. Notably, MTX can be removed efficiently from both municipal and hospital wastewater effluents by the solar/PMS system, suggesting its great potential in wastewater treatment applications. Overall, this study systematically evaluated the elimination of MTX by the unactivated PMS and solar/PMS treatment processes in water. The obtained findings may have implications for the mechanistic understanding and development of PMS-based processes for the degradation of such micropollutants in wastewater.
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Affiliation(s)
- Shengqi Zhang
- Fujian Key Laboratory of Coastal Pollution Prevention and Control, College of the Environment & Ecology, Xiamen University, Xiamen 361102, China
| | - Yuwei Xie
- Fujian Key Laboratory of Coastal Pollution Prevention and Control, College of the Environment & Ecology, Xiamen University, Xiamen 361102, China
| | | | - Yuefei Ji
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Xin Yu
- Fujian Key Laboratory of Coastal Pollution Prevention and Control, College of the Environment & Ecology, Xiamen University, Xiamen 361102, China
| | - Mingbao Feng
- Fujian Key Laboratory of Coastal Pollution Prevention and Control, College of the Environment & Ecology, Xiamen University, Xiamen 361102, China.
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Checking the Efficiency of a Magnetic Graphene Oxide–Titania Material for Catalytic and Photocatalytic Ozonation Reactions in Water. Catalysts 2022. [DOI: 10.3390/catal12121587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
An easily recoverable photo-catalyst in solid form has been synthesized and applied in catalytic ozonation in the presence of primidone. Maghemite, graphene oxide and titania (FeGOTi) constituted the solid. Additionally, titania (TiO2) and graphene oxide–titania (GOTi) catalysts were also tested for comparative reasons. The main characteristics of FeGOTi were 144 m2/g of surface area; a 1.29 Raman D and G band intensity ratio; a 26-emu g−1 magnetic moment; maghemite, anatase and brookite main crystalline forms; and a 1.83 eV band gap so the catalyst can absorb up to the visible red region (677 nm). Single ozonation, photolysis, photolytic ozonation (PhOz), catalytic ozonation (CatOz) and photocatalytic ozonation (PhCatOz) were applied to remove primidone. In the presence of ozone, the complete removal of primidone was experienced in less than 15 min. In terms of mineralization, the best catalyst was GOTi in the PhCatOz processes (100% mineralization in 2 h). Meanwhile, the FeGOTi catalyst was the most efficient in CatOz. FeGOTi led, in all cases, to the highest formation of HO radicals and the lowest ozone demand. The reuse of the FeGOTi catalyst led to some loss of mineralization efficacy after four runs, likely due to C deposition, the small lixiviation of graphene oxide and Fe oxidation.
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Xu G, Ma C, Wei J, Yang X, Wang T, Tan C, Yang K, Jiang K, Yu G, Zhang C, Li X. Enhanced photocatalytic activity of 3D hierarchical RP/BP/BiOCOOH via oxygen vacancies and double heterojunctions. CHEMOSPHERE 2022; 300:134485. [PMID: 35385767 DOI: 10.1016/j.chemosphere.2022.134485] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 03/08/2022] [Accepted: 03/29/2022] [Indexed: 06/14/2023]
Abstract
A 3D hierarchical RP/BP/BiOCOOH double heterostructures with abundant oxygen vacancies (OVs) was obtained by hydrothermal process and its photocatalytic activity was investigated by degradation of TC-HCl with different light sources and various natural water. The physicochemical characteristics of RP/BP/BiOCOOH heterojunctions were systematically characterized via TEM, XPS, EPR, EIS et al. Compared with BiOCOOH, the photocatalytic activity of RP/BP/BiOCOOH was obviously enhanced. Under simulated solar light irradiation, 60.5% of TC-HCl was removed by 3%RP/BP/BiOCOOH. And the rate constant of 3%RP/BP/BiOCOOH was 2.95 times than that of BiOCOOH. Traces of small molecular organics were beneficial to improve photocatalytic efficiency. The process of photocatalytic degradation and the cytotoxicity of intermedia products of TC-HCl were discussed via HPLC-MS, 3D-EEM, and antibacterial properties test. Based on the results of trapping experiments and ESR tests, •OH and •O2- were the most significant reactive oxygen species. The enhanced photocatalytic activity was ascribed to two reasons: 1 double heterojunctions structure enhanced the separation efficiency of carriers, 2 the introduction of OVs and BP/RP expanded the response range of light. This work provides a feasible strategy that non-metallic element semiconductor is used to modify the wide band gap semiconductor to enhance the photocatalytic efficiency.
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Affiliation(s)
- Guangmei Xu
- Pan-China Construction Group Co., Ltd., Beijing, 100002, China
| | - Chi Ma
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, China
| | - Jingjing Wei
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, China
| | - Xu Yang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, China
| | - Tantan Wang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, China
| | - Chang Tan
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, China
| | - Kaihua Yang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, China
| | - Kainian Jiang
- Yongzhou Environmental Monitoring Station, Yongzhou, 425000, China
| | - Guanlong Yu
- School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha, 410076, China
| | - Chang Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, China.
| | - Xin Li
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, China.
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Gao L, Guo Y, Zhan J, Yu G, Wang Y. Assessment of the validity of the quenching method for evaluating the role of reactive species in pollutant abatement during the persulfate-based process. WATER RESEARCH 2022; 221:118730. [PMID: 35714464 DOI: 10.1016/j.watres.2022.118730] [Citation(s) in RCA: 63] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 06/07/2022] [Accepted: 06/09/2022] [Indexed: 06/15/2023]
Abstract
Reactive species such as sulfate radicals (SO4•-), hydroxyl radicals (•OH), and/or singlet oxygen (1O2) have often been proposed as the main reactive species for pollutant abatement during the persulfate-based process, and their relative importance is conventionally assessed by the quenching method based on an implicit fundamental assumption that the added high-concentration quenchers (e.g., tert-butanol and methanol) only scavenge their target reactive species, but do not considerably affect the other reaction mechanism of the system. To examine the validity of this assumption, this study evaluated the effects of several commonly used quenchers (tert-butanol, methanol, ethanol, isopropanol, furfuryl alcohol, and L-histidine) on the mechanism of a cobalt mediated peroxymonosulfate (Co(II)/PMS) process. The results demonstrate that besides quenching target reactive species, the added high-concentration quenchers can cause many confounding effects on the Co(II)/PMS process, e.g., accelerating PMS decomposition, interfering reactive species production, and quenching of non-target reactive species. Because of these confounding effects, the quenching method can actually lead to serious misinterpretation of the role of reactive species in pollutant abatement during the persulfate-based process. The findings of this study highlight that the underlying assumption of the quenching method is usually invalid for the persulfate-based process. Therefore, it should be cautious to apply the quenching method to investigate the mechanism of the persulfate-based process, and some debatable conclusions of prior studies obtained with the quenching method may require further verification.
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Affiliation(s)
- Lingwei Gao
- School of Environment, Tsinghua University, Beijing 100084 China
| | - Yang Guo
- School of Environment, Tsinghua University, Beijing 100084 China
| | - Juhong Zhan
- School of Environment, Tsinghua University, Beijing 100084 China; Research institute for environmental innovation (Suzhou) Tsinghua, Suzhou 215163, China
| | - Gang Yu
- School of Environment, Tsinghua University, Beijing 100084 China
| | - Yujue Wang
- School of Environment, Tsinghua University, Beijing 100084 China; Research institute for environmental innovation (Suzhou) Tsinghua, Suzhou 215163, China.
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Deemter D, Salmerón I, Oller I, Amat AM, Malato S. Valorization of UWWTP effluents for ammonium recovery and MC elimination by advanced AOPs. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 823:153693. [PMID: 35134415 DOI: 10.1016/j.scitotenv.2022.153693] [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: 11/05/2021] [Revised: 01/10/2022] [Accepted: 02/01/2022] [Indexed: 06/14/2023]
Abstract
The main objective of this study was to generate ready-to-use revalorized irrigation water for fertilization from urban wastewater treatment plant (UWWTP) effluents. The focus was on controlled retention of NH4+ and microcontaminants (MC), using nanofiltration. Retentates generated were treated by solar photo-Fenton at circumneutral pH using Ethylenediamine-N, N'-disuccinic acid (EDDS) iron complexing agent. Solar photo-Fenton degradation efficacy was compared with electrooxidation processes as anodic oxidation, solar-assisted anodic oxidation, electro-Fenton and solar photoelectro Fenton. Finally, phytotoxicity and acute toxicity tests were performed to demonstrate the potentially safe reuse of treated wastewater for crop irrigation. Nanofiltration was able to produce a ready-to-use permeate stream containing recovered NH4+. (valuable nutrient). Solar photo-Fenton treatment at circumneutral pH would only be of interest for rapid degradation of contaminants at less than 1 mg/L in nanofiltration retentates. Other alternative tertiary treatments, such as electrooxidation processes, are a promising alternative when a high concentration of MC requires longer process times. Anodic oxidation was demonstrated to be able to eliminate >80% of microcontaminants and solar-assisted anodic oxidation significantly reduced the electricity consumption. Electro-Fenton processes were the least efficient of the processes tested. Phytotoxicity results showed that irrigation with the permeates reduced germination, root development was mainly promoted and shoot development was positive only at low retention rate (concentration factor = 2). Acute and chronic Daphnia magna toxicity studies demonstrated that the permeate volumes should be diluted at least 50% before direct reuse for crop irrigation.
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Affiliation(s)
- Dennis Deemter
- Plataforma Solar de Almería-CIEMAT, Carretera de Senés Km 4, Tabernas, Almería, Spain
| | - Irene Salmerón
- Plataforma Solar de Almería-CIEMAT, Carretera de Senés Km 4, Tabernas, Almería, Spain
| | - Isabel Oller
- Plataforma Solar de Almería-CIEMAT, Carretera de Senés Km 4, Tabernas, Almería, Spain
| | - Ana M Amat
- Grupo Procesos de Oxidación Avanzada, Campus de Alcoy, Universitat Politècnica de València, Spain
| | - Sixto Malato
- Plataforma Solar de Almería-CIEMAT, Carretera de Senés Km 4, Tabernas, Almería, Spain.
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7
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Rivas FJ. Monopersulfate in water treatment: Kinetics. JOURNAL OF HAZARDOUS MATERIALS 2022; 430:128383. [PMID: 35176700 DOI: 10.1016/j.jhazmat.2022.128383] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 12/22/2021] [Accepted: 01/26/2022] [Indexed: 06/14/2023]
Abstract
The kinetics of monopersulfate based systems in the elimination of potential harmful contaminants has been assessed from a theoretical point of view. A detailed reaction mechanism sustained in the generation of radicals (mainly hydroxyl and sulfate), propagation and termination stages has been proposed. The system of first order differential equations derived has numerically been solved. The effect of main influencing parameters such as contaminant and peroxymonosulfate initial concentrations, intermediate generation, presence of organic matter, role played by anions, has been theoretically obtained. Discussion of simulated results has been accomplished by comparison with experimental data found in the literature. At the sight of the theoretical and empirical data, use of simplistic pseudo first order kinetics is discouraged. Despite considering a significant number of elemental reactions, modelling of the system reveals that a high fraction of them can be neglected due to their insignificant role played in the mechanism. The entire mechanism has been tested when peroxymonosulfate has been activated by UV radiation, although results can be fairly extrapolated to other activation strategies. Finally, a generic model capable of accounting for the effect of a diversity of parameters is proposed. No theoretical background is behind the model, however the generic model clearly improves the results obtained by simple first order kinetics.
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Affiliation(s)
- F Javier Rivas
- Departamento de Ingeniería química y química física, IACYS,Universidad de Extremadura, Av. Elvas s/n, 06006 Badajoz, Spain
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Ling C, Wu S, Dong T, Dong H, Wang Z, Pan Y, Han J. Sulfadiazine removal by peroxymonosulfate activation with sulfide-modified microscale zero-valent iron: Major radicals, the role of sulfur species, and particle size effect. JOURNAL OF HAZARDOUS MATERIALS 2022; 423:127082. [PMID: 34488104 DOI: 10.1016/j.jhazmat.2021.127082] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 08/23/2021] [Accepted: 08/27/2021] [Indexed: 06/13/2023]
Abstract
Sulfide-modified zero-valent iron (S-Fe0) is regarded as a promising method to enhance the catalytic activity of Fe0 for peroxymonosulfate (PMS) activation. However, the roles of sulfidation and the application of the sulfidation treatment method are worth to further investigation. In our study, the effects of the S/Fe ratio, Fe0 dosage, and initial pH on sulfadiazine (SDZ) removal were investigated. The characterization of S-Fe0 with SEM, XPS, contact angle and Tafel analysis confirmed that the formation of sulfur species on the Fe0 surface could enhance the catalytic performance of Fe0. S2- played the major role and SO32- played the minor role in accelerating the conversion of Fe3+ to Fe2+. EPR tests, radical quenching and quantitative determination experiments identified •OH as playing the major role and SO4•- also playing an important role in SDZ removal in S-Fe0/PMS system. Sulfidation produced no notable change in the role of •OH and SO4•-. A possible degradation pathway of SDZ was proposed. Effect of sulfidation on various sizes of Fe0 was also studied which demonstrated that the smaller sizes of Fe0 (< 8 µm) were more effective in the sulfidation method treatment. S-Fe0/PMS system also showed a good performance in removing antibiotics in natural fresh water.
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Affiliation(s)
- Chen Ling
- School of the biological and environment, Nanjing Forestry University, Nanjing 210037, PR China
| | - Shuai Wu
- School of the biological and environment, Nanjing Forestry University, Nanjing 210037, PR China
| | - Tailu Dong
- School of the biological and environment, Nanjing Forestry University, Nanjing 210037, PR China
| | - Haifan Dong
- School of the biological and environment, Nanjing Forestry University, Nanjing 210037, PR China
| | - Zhengxiao Wang
- School of the biological and environment, Nanjing Forestry University, Nanjing 210037, PR China
| | - Yuwei Pan
- School of the biological and environment, Nanjing Forestry University, Nanjing 210037, PR China.
| | - Jiangang Han
- School of the biological and environment, Nanjing Forestry University, Nanjing 210037, PR China; Co-Innovation Center for the Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, Jiangsu 210037, PR China; National Positioning Observation Station of Hung-tse Lake Wetland Ecosystem in Jiangsu Province, Hongze, Jiangsu 223100, PR China.
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Nie J, Zou J, Yan S, Song W. Photosensitized Transformation of Peroxymonosulfate in Dissolved Organic Matter Solutions under Simulated Solar Irradiation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:1963-1972. [PMID: 35050612 DOI: 10.1021/acs.est.1c07411] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Sulfate radical (SO4•-)-mediated advanced oxidation processes via peroxymonosulfate (PMS) activation have been extensively investigated. However, the phototransformation of PMS in sunlit dissolved organic matter (DOM) solution has not been previously examined. For the first time, the photosensitized transformation of PMS in DOM-enriched solutions under simulated solar irradiation was observed. The generation of reactive species, including 1O2, SO4•-, and •OH, was confirmed by electron paramagnetic resonance and quantified by chemical probes. SO4•- was the primary reactive species generated via the reaction of excited triplet DOM (3DOM*) with PMS. 3DOM* acted as a reactive reductant and was quickly oxidized by PMS, with an estimated reaction rate constant of (4.09 ± 0.21) × 108 M-1 s-1. Compared to 3DOM*, one-electron-reducing DOM (DOM•-) was a minor contributor to the photosensitized transformation of PMS, and the contribution of DOM•- relied on the phenolic constituents. In addition, a series of different types of DOM, including terrestrial DOM, autochthonous DOM, and effluent organic matter and its fractions, were employed to examine the photosensitized transformation kinetics of PMS. Overall, the photosensitized transformation of PMS by irradiated DOM could be a useful and economical approach to generate SO4•- under environmentally relevant conditions.
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Affiliation(s)
- Jianxin Nie
- Department of Environmental Science & Engineering, Fudan University, Shanghai 200438, P. R. China
| | - Jianmin Zou
- Department of Environmental Science & Engineering, Fudan University, Shanghai 200438, P. R. China
| | - Shuwen Yan
- Department of Environmental Science & Engineering, Fudan University, Shanghai 200438, P. R. China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, P. R. China
| | - Weihua Song
- Department of Environmental Science & Engineering, Fudan University, Shanghai 200438, P. R. China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, P. R. China
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Degradation of Neonicotinoids and Caffeine from Surface Water by Photolysis. Molecules 2021; 26:molecules26237277. [PMID: 34885852 PMCID: PMC8659205 DOI: 10.3390/molecules26237277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/10/2021] [Accepted: 11/29/2021] [Indexed: 01/06/2023] Open
Abstract
Along with rapid social development, the use of insecticides and caffeine-containing products increases, a trend that is also reflected in the composition of surface waters. This study is focused on the phototreatment of a surface water containing three neonicotinoids (imidacloprid, thiamethoxam, and clothianidin) and caffeine. Firstly, the radiation absorption of the target pollutants and the effect of the water matrix components were evaluated. It was observed that the maximum absorption peaks appear at wavelengths ranging from 246 to 274 nm, and that the water matrix did not affect the efficiency of the removal of the target pollutants. It was found that the insecticides were efficiently removed after a very short exposure to UV irradiation, while the addition of hydrogen peroxide was needed for an efficient caffeine depletion. The electrical energy per order was estimated, being the lowest energy required (9.5 kWh m−3 order−1) for the depletion of thiamethoxan by indirect photolysis, and a concentration of hydrogen peroxide of 5 mg dm−3. Finally, a preliminary evaluation on the formation of by-products reveals that these compounds play a key role in the evolution of the ecotoxicity of the samples, and that the application of direct photolysis reduces the concentration of these intermediates.
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11
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Yang T, Mai J, Wu S, Luo W, Zhu M, Liang P, Guo L, Chen J, Jia J, Ma J. Insight into enhanced activation of permanganate under simulated solar irradiation: Rapid formation of manganese species. WATER RESEARCH 2021; 205:117669. [PMID: 34597991 DOI: 10.1016/j.watres.2021.117669] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 09/06/2021] [Accepted: 09/11/2021] [Indexed: 06/13/2023]
Abstract
Herein, permanganate [Mn(VII)] was activated by simulated solar (SS) (SS/Mn(VII)), resulting in rapid degradation of micropollutants in several minutes, with rates of target micropollutants outnumbered those in the Mn(VII) alone and SS. To explore the mechanism in this process, 4-cholorphenol (4-CP), p-hydroxybenzoic acid (p-HBA), and enrofloxacin (ENR) were selected as model compounds. Lines of evidence indicated that reactive manganese species (RMnS) (i.e., Mn(III) and Mn(V)) rather than radicals from Mn(VII) photolysis participated in the conversion of model compounds. Interestingly, roles of RMnS differed among three model compounds, suggesting their selectivity toward micropollutants. Increasing Mn(VII) dosage proved greater micropollutant degradation, while impacts of pH on SS/Mn(VII) performance varied among model compounds. P-HBA and ENR showed the lowest degradation efficiency at alkaline, whereas 4-CP demonstrated the best performance at alkaline, indicating the reactivity of RMnS varied toward micropollutants at different pH values. The quantum yield of Mn(VII) was 8.36 ± 0.03 X 10-6 mol Einstein-1 at pH 7.0. Effects of common co-existing constituents (Cl-, HCO3-, and humic acid (HA)) on micropollutant degradation by SS/Mn(VII) were examined. Specifically, HCO3- positively influenced the 4-CP and p-HBA degradation, whereas ENR was not affected, likely owing to the selectivity of RMnS-HCO3- complexes. HA was conducive to degrade p-HBA due to the production of RMnS-HA complexes, but unfavorable for ENR and 4-CP degradation because of the competitive light absorption and Mn(VII). Furthermore, a number of degradation products of 4-CP, p-HBA, and ENR were identified and possible pathways were proposed accordingly. The effectiveness of this process for micropollutant degradation in real waters, natural sunlight, ultraviolet and visible light via cut-off filtering SS emission was confirmed. This work revealed a great potential of applying SS/Mn(VII) for the marked degradation of micropollutants and facilitated the understandings of Mn(III)/Mn(V) behaviors.
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Affiliation(s)
- Tao Yang
- School of Biotechnology and Health Science, Wuyi University, Jiangmen 529020, Guangdong Province, China.
| | - Jiamin Mai
- School of Biotechnology and Health Science, Wuyi University, Jiangmen 529020, Guangdong Province, China
| | - Sisi Wu
- School of Biotechnology and Health Science, Wuyi University, Jiangmen 529020, Guangdong Province, China
| | - Weikang Luo
- School of Biotechnology and Health Science, Wuyi University, Jiangmen 529020, Guangdong Province, China
| | - Mengyang Zhu
- School of Biotechnology and Health Science, Wuyi University, Jiangmen 529020, Guangdong Province, China
| | - Ping Liang
- School of Applied and Physics Materials, Wuyi University, Jiangmen 529020, Guangdong Province, China
| | - Lin Guo
- School of Biotechnology and Health Science, Wuyi University, Jiangmen 529020, Guangdong Province, China
| | - Jing Chen
- School of Biotechnology and Health Science, Wuyi University, Jiangmen 529020, Guangdong Province, China
| | - Jianbo Jia
- School of Biotechnology and Health Science, Wuyi University, Jiangmen 529020, Guangdong Province, China
| | - Jun Ma
- State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China.
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Jia D, Hanna K, Mailhot G, Brigante M. A Review of Manganese(III) (Oxyhydr)Oxides Use in Advanced Oxidation Processes. Molecules 2021; 26:molecules26195748. [PMID: 34641291 PMCID: PMC8510277 DOI: 10.3390/molecules26195748] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 09/20/2021] [Accepted: 09/21/2021] [Indexed: 11/16/2022] Open
Abstract
The key role of trivalent manganese (Mn(III)) species in promoting sulfate radical-based advanced oxidation processes (SR-AOPs) has recently attracted increasing attention. This review provides a comprehensive summary of Mn(III) (oxyhydr)oxide-based catalysts used to activate peroxymonosulfate (PMS) and peroxydisulfate (PDS) in water. The crystal structures of different Mn(III) (oxyhydr)oxides (such as α-Mn2O3, γ-MnOOH, and Mn3O4) are first introduced. Then the impact of the catalyst structure and composition on the activation mechanisms are discussed, as well as the effects of solution pH and inorganic ions. In the Mn(III) (oxyhydr)oxide activated SR-AOPs systems, the activation mechanisms of PMS and PDS are different. For example, both radical (such as sulfate and hydroxyl radical) and non-radical (singlet oxygen) were generated by Mn(III) (oxyhydr)oxide activated PMS. In comparison, the activation of PDS by α-Mn2O3 and γ-MnOOH preferred to form the singlet oxygen and catalyst surface activated complex to remove the organic pollutants. Finally, research gaps are discussed to suggest future directions in context of applying radical-based advanced oxidation in wastewater treatment processes.
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Affiliation(s)
- Daqing Jia
- Institut de Chimie de Clermont-Ferrand, Université Clermont Auvergne, CNRS, Clermont Auvergne INP SIGMA Clermont, F-63000 Clermont-Ferrand, France; (D.J.); (G.M.)
| | - Khalil Hanna
- École Nationale Supérieure de Chimie de Rennes, Université Rennes, CNRS, ISCR–UMR6226, F-35000 Rennes, France;
- Institut Universitaire de France (IUF), MESRI, 1 rue Descartes, 75231 Paris, France
| | - Gilles Mailhot
- Institut de Chimie de Clermont-Ferrand, Université Clermont Auvergne, CNRS, Clermont Auvergne INP SIGMA Clermont, F-63000 Clermont-Ferrand, France; (D.J.); (G.M.)
| | - Marcello Brigante
- Institut de Chimie de Clermont-Ferrand, Université Clermont Auvergne, CNRS, Clermont Auvergne INP SIGMA Clermont, F-63000 Clermont-Ferrand, France; (D.J.); (G.M.)
- Correspondence: ; Tel.: +33-047-340-5514
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Zhang K, Min X, Zhang T, Xie M, Si M, Chai L, Shi Y. Selenium and nitrogen co-doped biochar as a new metal-free catalyst for adsorption of phenol and activation of peroxymonosulfate: Elucidating the enhanced catalytic performance and stability. JOURNAL OF HAZARDOUS MATERIALS 2021; 413:125294. [PMID: 33578091 DOI: 10.1016/j.jhazmat.2021.125294] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 01/21/2021] [Accepted: 01/31/2021] [Indexed: 06/12/2023]
Abstract
Coupling of adsorption and advanced oxidation processes triggered by metal-free carbocatalysts is an appealing wastewater purification scheme. However, its practical application is challenging due to the unsatisfactory stability of conventional heteroatom-doped systems. Herein, we innovatively developed a simple and scalable biochemical strategy to synthesize selenium and nitrogen co-doped biochar (Se/N-BC) as a bifunctional catalyst of adsorption-oxidation. The Se/N-BC displays the highest efficiency of phenol (PE) degradation (99.2% of PE was removed within 5 min) with the lowest dosage of catalyst (0.1 g L-1) and peroxymonosulfate (PMS, 0.4 g L-1). More importantly, the Se/N-BC is not only universal in a wide pH range of 3.0-11.0 and complex ionic environment, but also possesses an excellent cycling stability. The Se/N co-doping induces a rapid cycle of adsorption-degradation for PE. The Se/N-BC acts as an "electron transfer bridge", guiding rapid electron transfer from PE to PMS to achieve high-efficient degradation. The Se/N co-doping facilitates the formation of graphitic N and unlocks the potential of adjacent C sites for PMS activation, consequently boost oxidation efficiency. In addition, the oxidation of catalyst is prevented due to the antioxidant properties of Se, which has been a primary concern either to regenerate adsorbate or to enhance degradation performance.
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Affiliation(s)
- Kejing Zhang
- School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
| | - Xiaoye Min
- School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
| | - Tingzheng Zhang
- School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
| | - Mingbo Xie
- School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
| | - Mengying Si
- School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
| | - Liyuan Chai
- School of Metallurgy and Environment, Central South University, Changsha 410083, PR China; Chinese National Engineering Research Centre for Control & Treatment of Heavy Metal Pollution, Changsha 410083, PR China
| | - Yan Shi
- School of Metallurgy and Environment, Central South University, Changsha 410083, PR China; Chinese National Engineering Research Centre for Control & Treatment of Heavy Metal Pollution, Changsha 410083, PR China.
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Guerra-Rodríguez S, Ribeiro ARL, Ribeiro RS, Rodríguez E, Silva AMT, Rodríguez-Chueca J. UV-A activation of peroxymonosulfate for the removal of micropollutants from secondary treated wastewater. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 770:145299. [PMID: 33736410 DOI: 10.1016/j.scitotenv.2021.145299] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 01/14/2021] [Accepted: 01/15/2021] [Indexed: 05/28/2023]
Abstract
The occurrence of micropollutants (MPs) in the aquatic environment poses a threat to the environment and to the human health. The application of sulfate radical-based advanced oxidation processes (SR-AOPs) to eliminate these contaminants has attracted attention in recent years. In this work, the simultaneous degradation of 20 multi-class MPs (classified into 5 main categories, namely antibiotics, beta-blockers, other pharmaceuticals, pesticides, and herbicides) was evaluated for the first time in secondary treated wastewater, by activating peroxymonosulfate (PMS) with UV-A radiation, without any pH adjustment or iron addition. The optimal PMS concentration to remove the spiked target MPs (100 μg L-1) from wastewater was 0.1 mM, leading to an average degradation of 80% after 60 min, with most of the elimination occurring during the first 5 min. Synergies between radiation and the oxidant were demonstrated and quantified, with an average extent of synergy of 69.1%. The optimized treatment was then tested using non-spiked wastewater, in which 12 out of the 20 target contaminants were detected. Among these, 7 were degraded at some extent, varying from 10.7% (acetamiprid) to 94.4% (ofloxacin), the lower removals being attributed to the quite inferior ratio of MPs to natural organic matter. Phytotoxicity tests carried out with the wastewater before and after photo-activated PMS oxidation revealed a decrease in the toxicity and that the plants were able to grow in the presence of the treated water. Therefore, despite the low degradation rates obtained for some MPs, the treatment effectively reduces the toxicity of the matrix, making the water safer for reuse.
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Affiliation(s)
- Sonia Guerra-Rodríguez
- Department of Industrial Chemical & Environmental Engineering, Escuela Técnica Superior de Ingenieros Industriales, Universidad Politécnica de Madrid, Madrid, Spain
| | - Ana Rita Lado Ribeiro
- Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal.
| | - Rui S Ribeiro
- Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
| | - Encarnación Rodríguez
- Department of Industrial Chemical & Environmental Engineering, Escuela Técnica Superior de Ingenieros Industriales, Universidad Politécnica de Madrid, Madrid, Spain
| | - Adrián M T Silva
- Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
| | - Jorge Rodríguez-Chueca
- Department of Industrial Chemical & Environmental Engineering, Escuela Técnica Superior de Ingenieros Industriales, Universidad Politécnica de Madrid, Madrid, Spain.
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Qiu P, Zhao T, Zhu X, Thokchom B, Yang J, Jiang W, Wang L, Fan Y, Li X, Luo W. A confined micro-reactor with a movable Fe3O4 core and a mesoporous TiO2 shell for a photocatalytic Fenton-like degradation of bisphenol A. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.09.061] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Facile Preparation of a Novel Bi2WO6/Calcined Mussel Shell Composite Photocatalyst with Enhanced Photocatalytic Performance. Catalysts 2020. [DOI: 10.3390/catal10101166] [Citation(s) in RCA: 79] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The exploration of cost-effective and highly efficient photocatalysts is still a great challenge. In this work, a cost-effective and highly active Bi2WO6/calcined mussel shell (CMS/BWO) composite photocatalyst was prepared by a facile solvothermal route, in which Bi2WO6 nanosheets were tightly, evenly, and vertically grown on waste calcined mussel shells (CMS). Multiple techniques are adopted to characterize the phases, morphology, and chemical properties of the as-fabricated catalysts. In contrast to the stacked Bi2WO6, CMS/BWO has numerous exposed edges and open transfer pathways, which can create more open space and reactive sites for photocatalytic reactions. Such favorable characteristics enable CMS/BWO to efficiently degrade organic pollutants (e.g., rhodamine B (RhB), methylene blue (MB), tetracycline hydrochloride (TC)) under visible light. Moreover, the generation of reactive species during the photocatalytic process is also examined by trapping experiments, disclosing the pivotal role of photo-generated holes (h+) and hydroxyl radicals (•OH) in the photo-degradation of pollutants. Above all, this study not only provides an efficient photocatalyst for environmental remediation, but it also opens up new possibilities for waste mussel shell reutilization.
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Zhong X, Wu WT, Jie HN, Tang WY, Chen DY, Ruan T, Bai HP. Degradation of norfloxacin by copper-doped Bi2WO6-induced sulfate radical-based visible light-Fenton reaction. RSC Adv 2020; 10:38024-38032. [PMID: 35515147 PMCID: PMC9057272 DOI: 10.1039/d0ra07378d] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 09/29/2020] [Indexed: 11/23/2022] Open
Abstract
In this work, a series of Cu(ii)-doped Bi2WO6 nanomaterials with good photo-response properties were facile synthesized and used to obtain efficient peroxymonosulfate (PMS) activation activity for norfloxacin (NOF) removal under visible LED light irradiation. It was found that Cu–Bi2WO6 presents superior catalytic performance for NOF degradation in comparison with pristine Bi2WO6, attributed to the partial substitution of Bi3+ by Cu ions. Moreover, the effects of experimental conditions were carefully investigated, including PMS concentration, catalyst dosage and initial pH, and the experimental data fitted well with the pseudo-first-order model. Experimental results implied that there was a synergic effect of visible LED light energy and the sulfate radical (SR)-Fenton reaction. Additionally, the 5Cu–Bi2WO6 nanomaterial presented the best degradation efficiency of 89.27% and exhibited high NOF degradation in 5 cycles with limited Cu leaching. Furthermore, EPR and radical quenching experiments were performed to identify the reactive oxygen species presented in the SR-photo-Fenton reaction. Finally, the major degradation intermediates of NOF were detected, and a possible degradation pathway was given. Thus, a mechanism of the significant photocatalytic activity enhancement by copper doping of the Bi2WO6 catalyst was proposed. In this work, a series of Cu(ii)-doped Bi2WO6 nanomaterials with good photo-response properties were facile synthesized and used to obtain efficient peroxymonosulfate (PMS) activation activity for norfloxacin (NOF) removal under visible LED light irradiation.![]()
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Affiliation(s)
- Xin Zhong
- Department of Environmental Engineering and Science
- Beijing Normal University
- Zhuhai
- China
- College of Education for the Future
| | - Wen-Ting Wu
- Department of Environmental Engineering and Science
- Beijing Normal University
- Zhuhai
- China
| | - Hao-Nan Jie
- Department of Environmental Engineering and Science
- Beijing Normal University
- Zhuhai
- China
| | - Wang-Ye Tang
- Department of Environmental Engineering and Science
- Beijing Normal University
- Zhuhai
- China
| | - Dan-Yan Chen
- Department of Environmental Engineering and Science
- Beijing Normal University
- Zhuhai
- China
| | - Tao Ruan
- Department of Environmental Engineering and Science
- Beijing Normal University
- Zhuhai
- China
| | - He-Ping Bai
- Department of Environmental Engineering and Science
- Beijing Normal University
- Zhuhai
- China
- College of Education for the Future
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