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Hydrodynamics and mass transfer investigations in a biphasic plasma reactor. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING 2021. [DOI: 10.1515/ijcre-2020-0233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
This work aims to investigate the radical mechanism responsible for the degradation of a highly soluble pollutant in water. The AG25 dye was chosen as substrate and the GAD-Spray as biphasic reactor to treat it remotely. The study is conducted through experiments and simulations using Comsol Multiphysics-chemical engineering module. The Hydrodynamics coupled with the plasma-reaction has demonstrated that a low mass transfer in the droplet favorites the removal of the pollutant. It indicates that the plasma-reactions take place at the stagnant liquid film are far from the bulk of the droplet. Numerical modeling fitted by the conversion rate of the reagent has shown that the peroxynitrous acid HOONO (PON) is responsible for the degradation of AG25 in water. Consequently, and according different kinetic mechanisms, a radical mechanism has been predicted based on this deduction. The removal and the degradation rates were of 88 and 83% respectively during 90 min after the plasma exposure. The results of simulations showed a significant agreement between the calculated and the real removal rate of AG25. Through this study, it can be confirmed that GAD-spray-tower plasma reactor is efficient to eliminate and degrade remotely a very soluble pollutant through the HOONO (PON) plasma long-lived species.
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Shen JH, Chuang HY, Jiang ZW, Liu XZ, Horng JJ. Novel quantification of formation trend and reaction efficiency of hydroxyl radicals for investigating photocatalytic mechanism of Fe-doped TiO 2 during UV and visible light-induced degradation of acid orange 7. CHEMOSPHERE 2020; 251:126380. [PMID: 32163781 DOI: 10.1016/j.chemosphere.2020.126380] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Revised: 02/26/2020] [Accepted: 02/28/2020] [Indexed: 06/10/2023]
Abstract
A detailed mechanistic investigation of the hydroxyl radical (•OH) formation and organic pollutant degradation over transition metal-doped and undoped TiO2 photocatalysts was performed by the quantitative measurement of •OH and the identification of intermediate products under various experimental conditions. The Fe-doped TiO2 as a typical subject was prepared, characterized and used to degrade an azo dye Acid Orange 7 (AO7). It is indicated that the enhanced photocatalytic activity of Fe-doped TiO2 for AO7 degradation was attributed to the increase in surface area, the facilitated charge transfer via Fe-dopant, and a red shift of absorbable wavelength, maintaining a great formation of •OH under visible irradiation. The oxidation of H2O by holes was estimated as the major pathway of •OH formation rather than the reduction of dissolved O2 by electrons, and their formation trends reached to approximately 75% and 25%, respectively. Meanwhile the synergistic effect of Fe-dopant produced nearly 10% of extra •OH by visible light photoactivation. The intermediate products and pathways of AO7 degradation varied greatly with different photocatalysts and conditions of the process, involving several reaction mechanisms such as the azo bond cleaving, naphthalene oxidation, desulfonation, and hydroxylated products generation. Through the quantification of •OH-reacted efficiency we proposed, a stoichiometry of •OH affecting overall reaction mechanisms in the TiO2-assisted photodegradation of AO7 was further established. This study can provide new insights on how to better clarify the variation regularity of organic pollutant degradation from different treatments of the •OH-based advanced oxidation processes.
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Affiliation(s)
- Jyun-Hong Shen
- College of Ecological Environment and Urban Construction, Fujian University of Technology, Fuzhou, Fujian, 350118, China.
| | - Hung-Yi Chuang
- Department of Safety, Health and Environmental Engineering, National Yunlin University of Science and Technology (YunTech), Douliou, Yunlin, 64002, Taiwan
| | - Zhu-Wu Jiang
- College of Ecological Environment and Urban Construction, Fujian University of Technology, Fuzhou, Fujian, 350118, China
| | - Xin-Zhong Liu
- College of Ecological Environment and Urban Construction, Fujian University of Technology, Fuzhou, Fujian, 350118, China
| | - Jao-Jia Horng
- Department of Safety, Health and Environmental Engineering, National Yunlin University of Science and Technology (YunTech), Douliou, Yunlin, 64002, Taiwan
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Sun Y, Cheng S, Lin Z, Yang J, Li C, Gu R. Combination of plasma oxidation process with microbial fuel cell for mineralizing methylene blue with high energy efficiency. JOURNAL OF HAZARDOUS MATERIALS 2020; 384:121307. [PMID: 31629597 DOI: 10.1016/j.jhazmat.2019.121307] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 09/07/2019] [Accepted: 09/23/2019] [Indexed: 06/10/2023]
Abstract
Plasma advanced oxidation process (PAOP) has great ability to break recalcitrant pollutants into small molecular compounds but suffers from poor performance and low energy efficiency for mineralizing dyeing pollutants. Combining advanced oxidation process with biodegradation process is an effective strategy to improve mineralization performance and reduce cost. In this study, a combined process using PAOP as pre-treatment followed by microbial fuel cell (MFC) treatment was investigated to mineralize methylene blue (MB). The PAOP could degrade MB by 97.7%, but only mineralize MB by 23.2% under the discharge power of 35 W for 10 min. Besides, BOD5/COD ratio of MB solution raised from 0.04 to 0.38 while inhibition on E. coli growth decreased from 85.5% to 28.3%. The following MFC process increased MB mineralization percentage to 63.0% with a maximum output power density of 519 mW m-2. The combined process achieved a mineralization energy consumption of 0.143 KWh gTOC-1 which was only 41.8% of that of PAOP. FT-IR, UV-vis and pH variation demonstrated that PAOP could break the aromatic and heterocyclic structures in MB molecule to form organic acids. Possible degradation pathways of MB were accordingly proposed based on LC-MS, GC-MS, and density functional theory calculation.
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Affiliation(s)
- Yi Sun
- State Key Laboratory of Clean Energy, Department of Energy Engineering, Zhejiang University, Hangzhou, 310027, PR China
| | - Shaoan Cheng
- State Key Laboratory of Clean Energy, Department of Energy Engineering, Zhejiang University, Hangzhou, 310027, PR China.
| | - Zhufan Lin
- State Key Laboratory of Clean Energy, Department of Energy Engineering, Zhejiang University, Hangzhou, 310027, PR China
| | - Jiawei Yang
- State Key Laboratory of Clean Energy, Department of Energy Engineering, Zhejiang University, Hangzhou, 310027, PR China
| | - Chaochao Li
- State Key Laboratory of Clean Energy, Department of Energy Engineering, Zhejiang University, Hangzhou, 310027, PR China
| | - Ruonan Gu
- State Key Laboratory of Clean Energy, Department of Energy Engineering, Zhejiang University, Hangzhou, 310027, PR China
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The Role of Pulse Voltage Amplitude on Chemical Processes Induced by Streamer Discharge at Water Surface. Catalysts 2018. [DOI: 10.3390/catal8050213] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Zhang C, Sun Y, Yu Z, Zhang G, Feng J. Simultaneous removal of Cr(VI) and acid orange 7 from water solution by dielectric barrier discharge plasma. CHEMOSPHERE 2018; 191:527-536. [PMID: 29059560 DOI: 10.1016/j.chemosphere.2017.10.087] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 08/25/2017] [Accepted: 10/14/2017] [Indexed: 06/07/2023]
Abstract
A feasibility study was conducted for simultaneous removal of hexavalent chromium (Cr(VI)) and azo dye acid orange 7 (AO7) by the dielectric barrier discharge (DBD) plasma. The results showed that there was a synergistic effect between Cr(VI) reduction and AO7 degradation. The presence of Cr(VI) enhanced the degradation efficiency of AO7. Meanwhile, the removal efficiency of Cr(VI) also increased in the presence of AO7. Under acidic conditions (pH = 3.0), the reduction efficiency of Cr(VI) was higher (approximately 94%). However, the presence of Cr(VI) diminished the effect of pH on the AO7 degradation efficiency. By increasing the input voltage from 80 to 120 V, the removal efficiencies of Cr(VI) and AO7 were observably increased from 54% to 88% and 62% to 89%, respectively. Adding organic matters inhibited the degradation of AO7 and promoted the reduction of Cr(VI). The addition of Cu(II), Co(II), Ni(II), Mn(II) and Fe(III) could inhibit the Cr(VI) reduction, but not significantly affect the degradation of AO7. The degradation intermediates of AO7 were identified by LC-MS/MS system and a possible degradation pathway was proposed. This study showed that the DBD plasma can simultaneously remove Cr(VI) and AO7, which provided a new idea for the actual wastewater treatment.
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Affiliation(s)
- Chunxiao Zhang
- State Key Laboratory of Pollution Control & Resources Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China
| | - Yabing Sun
- State Key Laboratory of Pollution Control & Resources Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China.
| | - Zhongqing Yu
- State Key Laboratory of Pollution Control & Resources Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China
| | - Guyu Zhang
- State Key Laboratory of Pollution Control & Resources Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China
| | - Jingwei Feng
- Department of Municipal Engineering, School of Civil and Hydraulic Engineering, Hefei University of Technology, Hefei 230009, PR China.
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Shen JH, Horng JJ, Wang YS, Zeng YR. The use of reactive index of hydroxyl radicals to investigate the degradation of acid orange 7 by Fenton process. CHEMOSPHERE 2017; 182:364-372. [PMID: 28505578 DOI: 10.1016/j.chemosphere.2017.05.043] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 04/15/2017] [Accepted: 05/07/2017] [Indexed: 06/07/2023]
Abstract
This study suggested the amount of hydroxyl radicals (OH) reacting with organics as a new index to evaluate the reaction efficiency (RE) of Fenton process, and used it to investigate the degradation mechanism of target pollution, Acid Orange 7 (AO7). The effects of initial concentrations of Fe(II), H2O2, and AO7 on RE were quantified by using response surface methodology (RSM). The main factors affecting RE were Fe(II), H2O2, and their interaction, and their percentage effects were 65.75, 11.99 and 22.23%, respectively. Moreover, based on the analysis result of RSM, a condition for good RE was proposed that it should ensure a higher amount of OH reacted with organics, and reduce the amount of OH scavenged by Fe(II). Liquid chromatography-mass spectrometry (LC/MS) analysis was used to identify the products of AO7 degradation in Fenton process, and there were three possible mechanisms to be observed, such as azo bond cleavage, hydroxylation, and oxidation of naphthalene ring. The trend of mechanisms might vary with the amount of OH attacks, and therefore the use of estimated RE could provide more particular information to better understand the relationship between organic degradation and OH attacks.
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Affiliation(s)
- Jyun-Hong Shen
- Graduate School of Engineering Science and Technology, National Yunlin University of Science and Technology (YunTech), Douliou, Yunlin 64002, Taiwan, ROC
| | - Jao-Jia Horng
- Department of Safety Health and Environmental Engineering, National Yunlin University of Science and Technology (YunTech), Douliou, Yunlin 64002, Taiwan, ROC.
| | - Yeoung-Sheng Wang
- Graduate School of Engineering Science and Technology, National Yunlin University of Science and Technology (YunTech), Douliou, Yunlin 64002, Taiwan, ROC
| | - Yan-Ru Zeng
- Department of Safety Health and Environmental Engineering, National Yunlin University of Science and Technology (YunTech), Douliou, Yunlin 64002, Taiwan, ROC
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7
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Sun W, Zhang C, Chen J, Zhang B, Zhang H, Zhang Y, Chen L. Accelerating biodegradation of a monoazo dye Acid Orange 7 by using its endogenous electron donors. JOURNAL OF HAZARDOUS MATERIALS 2017; 324:739-743. [PMID: 27887816 DOI: 10.1016/j.jhazmat.2016.11.052] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 11/12/2016] [Accepted: 11/18/2016] [Indexed: 06/06/2023]
Abstract
Biodegradation of a monoazo dye - Acid Orange 7 (AO7) was investigated by using an internal circulation baffled biofilm reactor. For accelerating AO7 biodegradation, endogenous electron donors produced from AO7 by UV photolysis were added into the reactor. The result shows that AO7 removal rate can be accelerated by using its endogenous electron donors, such as sulfanilic and aniline. When initial AO7 concentration was 13.6mg/L, electron donors generated by 8h UV photolysis were added into the same system. The biodegradation rate 0.4mg0.05h-1 was enhanced 60% than that without adding electron donor. Furthermore, sulfanilic and aniline were found to be the main endogenous electron carriers, which could accelerate the steps of the azo dye biodegradation.
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Affiliation(s)
- Weihua Sun
- Department of Environmental Science and Engineering, College of Life and Environmental Sciences, Shanghai Normal University, Shanghai, 200234, PR China.
| | - Chengji Zhang
- Department of Environmental Science and Engineering, College of Life and Environmental Sciences, Shanghai Normal University, Shanghai, 200234, PR China
| | - Jun Chen
- Department of Environmental Science and Engineering, College of Life and Environmental Sciences, Shanghai Normal University, Shanghai, 200234, PR China
| | - Bingbing Zhang
- Department of Environmental Science and Engineering, College of Life and Environmental Sciences, Shanghai Normal University, Shanghai, 200234, PR China
| | - Hongzhuan Zhang
- Department of Environmental Science and Engineering, College of Life and Environmental Sciences, Shanghai Normal University, Shanghai, 200234, PR China
| | - Yongming Zhang
- Department of Environmental Science and Engineering, College of Life and Environmental Sciences, Shanghai Normal University, Shanghai, 200234, PR China.
| | - Lujun Chen
- School of Environment, Tsinghua University, Beijing 100084, PR China
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Ferhat MF, Ghezzar MR, Smaïl B, Guyon C, Ognier S, Addou A. Conception of a novel spray tower plasma-reactor in a spatial post-discharge configuration: Pollutants remote treatment. JOURNAL OF HAZARDOUS MATERIALS 2017; 321:661-671. [PMID: 27694030 DOI: 10.1016/j.jhazmat.2016.09.052] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Revised: 09/04/2016] [Accepted: 09/22/2016] [Indexed: 06/06/2023]
Abstract
This paper describes a novel gliding Arc discharge reactor producing a non-thermal plasma at atmospheric pressure in humid air. The ionized gas is generated in a spray-tower absorber for the treatment of organic pollutants. The reactor configuration enables the plasma-degradation of micro-droplets effluents in the spatial post-discharge mode. This type of design allows to exclude the direct contact between the plasma plume and the liquid to be treated in order to avoid the liquid heating and the flame extinction problems. A hydrodynamic study coupling 'Navier-Stokes' equations and those of 'Convection-Diffusion' allowed to calculate the concentration profiles and the droplet falling velocity. The stripping of phenol was studied to valid the hydrodynamic approach. Experiences and simulations showed that after 1h of treatment, only 5% of the compound was transferred into the plasma phase. The spatiality of the novel reactor allowed a degradation rate of 100% for catechol after 38min of plasma-treatment. For 4-nitrophenol, the degradation rate reached 90% after 120min. Phenol and its by-products degradation were totally degraded by combining the spatiality of the reactor and the temporal post-discharge. A degradation mechanism was proposed and a plasmachemical reaction in relation with the pernitrous acid species was confirmed.
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Affiliation(s)
- Mohamed Fouad Ferhat
- Laboratoire des Sciences et Techniques de l'Environnement et de la Valorisation. Faculté des Sciences et de la Technologie, Université de Mostaganem, Algeria
| | - Mouffok Redouane Ghezzar
- Laboratoire des Sciences et Techniques de l'Environnement et de la Valorisation. Faculté des Sciences et de la Technologie, Université de Mostaganem, Algeria.
| | - Bentaïba Smaïl
- Laboratoire des Sciences et Techniques de l'Environnement et de la Valorisation. Faculté des Sciences et de la Technologie, Université de Mostaganem, Algeria
| | - Cedric Guyon
- Institut de Recherche de Chimie Paris (IRCP), Equipe 2PM (Procédés, Plasmas, Microsystèmes), UMR 8247, Chimie ParisTech-CNRS, 11 Rue Pierre et Marie Curie, 75005 Paris, France
| | - Stéphanie Ognier
- Institut de Recherche de Chimie Paris (IRCP), Equipe 2PM (Procédés, Plasmas, Microsystèmes), UMR 8247, Chimie ParisTech-CNRS, 11 Rue Pierre et Marie Curie, 75005 Paris, France
| | - Ahmed Addou
- Laboratoire des Sciences et Techniques de l'Environnement et de la Valorisation. Faculté des Sciences et de la Technologie, Université de Mostaganem, Algeria
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Guo H, Wang H, Wu Q, Zhou G, Yi C. Kinetic analysis of acid orange 7 degradation by pulsed discharge plasma combined with activated carbon and the synergistic mechanism exploration. CHEMOSPHERE 2016; 159:221-227. [PMID: 27295438 DOI: 10.1016/j.chemosphere.2016.05.092] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 05/17/2016] [Accepted: 05/31/2016] [Indexed: 06/06/2023]
Abstract
The synergistic technique of pulsed discharge plasma (PDP) and activated carbon (AC) was built to investigate the kinetics of acid orange 7 (AO7) degradation under different conditions of AC addition, electrode gap, initial pH value of solution, gas variety and gas flow rate. Emission spectra of OH and O, UV-vis absorption spectra of the AO7 solution and TOC removal were measured to illustrate the synergistic mechanism of the PDP and the AC. The obtained results indicated that the kinetic constant of AO7 degradation increased from 0.00947 min(-1) to 0.01419 min(-1) when 4 g AC was added into the PDP system; AO7 degradation was higher in the case of alkaline solution when oxygen was used as the flow gas in the PDP/AC system, 2 L/min oxygen flow was more favorable for the degradation. Results of the relative emission intensities of OH and O indicated the catalytic effect of the AC on the active species formation as well as the important role of the two radicals for the AO7 degradation. There was no new peaks appeared by the UV-vis analysis of the AO7 solution after 60 min treatment. The highest TOC removal in the PDP/AC system was 30.3%, which was achieved under the condition of 4 L/min air flow rate and 3 initial pH value.
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Affiliation(s)
- He Guo
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Huijuan Wang
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, PR China; Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou 215009, PR China.
| | - Qiangshun Wu
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Guangshun Zhou
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Chengwu Yi
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, PR China
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Wang T, Qu G, Ren J, Sun Q, Liang D, Hu S. Organic acids enhanced decoloration of azo dye in gas phase surface discharge plasma system. JOURNAL OF HAZARDOUS MATERIALS 2016; 302:65-71. [PMID: 26444488 DOI: 10.1016/j.jhazmat.2015.09.051] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2015] [Revised: 09/20/2015] [Accepted: 09/22/2015] [Indexed: 05/03/2023]
Abstract
A gas phase surface discharge plasma combined with organic acids system was developed to enhance active species mass transfer and dye-containing wastewater treatment efficacy, with Acid Orange II (AO7) as the model pollutant. The effects of discharge voltage and various organic acid additives (acetic acid, lactic acid and nonoic acid) on AO7 decoloration efficiency were evaluated. The experimental results showed that an AO7 decoloration efficiency of approximately 69.0% was obtained within 4 min of discharge plasma treatment without organic acid addition, which was improved to 82.8%, 83.5% and 88.6% within the same treatment time with the addition of acetic acid, lactic acid and nonoic acid, respectively. The enhancement effects on AO7 decoloration efficiency could be attributed to the decrease in aqueous surface tension, improvement in bubble distribution and shape, and increase in ozone equivalent concentration. The AO7 wastewater was biodegradable after discharge plasma treatment with the addition of organic acid. AO7 decomposition intermediates were analyzed by UV-vis spectrometry and GC-MS; 2-naphthol, 1,4-benzoquinone, phthalic anhydride, coumarin, 1,2-naphthoquinone, and 2-formyl-benzoic acid were detected. A possible pathway for AO7 decomposition in this system was proposed.
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Affiliation(s)
- Tiecheng Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, PR China.
| | - Guangzhou Qu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, PR China
| | - Jingyu Ren
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, PR China
| | - Qiuhong Sun
- Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - Dongli Liang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, PR China
| | - Shibin Hu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, PR China
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Merouani D, Abdelmalek F, Taleb F, Martel M, Semmoud A, Addou A. Plasma treatment by gliding arc discharge of dyes/dye mixtures in the presence of inorganic salts. ARAB J CHEM 2015. [DOI: 10.1016/j.arabjc.2011.01.034] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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12
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Hijosa-Valsero M, Molina R, Montràs A, Müller M, Bayona JM. Decontamination of waterborne chemical pollutants by using atmospheric pressure nonthermal plasma: a review. ACTA ACUST UNITED AC 2014. [DOI: 10.1080/21622515.2014.990935] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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13
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Haddou N, Ghezzar MR, Abdelmalek F, Ognier S, Martel M, Addou A. Plasmacatalytic removal of lead acetate assisted by precipitation. CHEMOSPHERE 2014; 107:304-310. [PMID: 24462087 DOI: 10.1016/j.chemosphere.2013.12.071] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Revised: 12/16/2013] [Accepted: 12/28/2013] [Indexed: 06/03/2023]
Abstract
The Gliding Arc Discharge (GAD) is an efficient non-thermal plasma technique able to degrade organic compounds dispersed in water at atmospheric pressure. The degradation of the organometallic lead acetate (PbAc) in aqueous solution was performed by two distinct plasmageneous processes: GAD and GAD/TiO2. The global oxidation of the organic matter was followed by Chemical Oxygen Demand (COD) and the mineralization was determined by the Total Organic Carbon (TOC). The Pb(2+) ions released during the degradation process were measured by Atomic Absorption Spectroscopy (AAS). For 2h of GAD treatment, the degradation rate of PbAc (10mM) reached 83% and for the same duration of GAD/TiO2 process ([TiO2]=1gL(-1)), it reached 93%. The release of Pb(2+) ions in the solution was respectively of 95% and 57% for GAD and GAD/TiO2 processes. The released Pb(2+) ions were removed by precipitation process in a basic medium at pH=11.1. A reaction mechanism was proposed to explain the PbAc molecule degradation and the Pb(2+) elimination.
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Affiliation(s)
- Nabila Haddou
- Laboratoire des Sciences et Techniques de l'Environnement et de la Valorisation, Faculté des Sciences et de la technologie, Université de Mostaganem, Algeria
| | - Mouffok Redouane Ghezzar
- Laboratoire des Sciences et Techniques de l'Environnement et de la Valorisation, Faculté des Sciences et de la technologie, Université de Mostaganem, Algeria; Laboratoire de Génie des Procédés Plasma et traitement de surface, UPMC Université de Paris 06, 11 rue Pierre et Marie Curie 75005, France.
| | - Fatiha Abdelmalek
- Laboratoire des Sciences et Techniques de l'Environnement et de la Valorisation, Faculté des Sciences et de la technologie, Université de Mostaganem, Algeria
| | - Stéphanie Ognier
- Laboratoire de Génie des Procédés Plasma et traitement de surface, UPMC Université de Paris 06, 11 rue Pierre et Marie Curie 75005, France
| | | | - Ahmed Addou
- Laboratoire des Sciences et Techniques de l'Environnement et de la Valorisation, Faculté des Sciences et de la technologie, Université de Mostaganem, Algeria
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14
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Hijosa-Valsero M, Molina R, Schikora H, Müller M, Bayona JM. Removal of priority pollutants from water by means of dielectric barrier discharge atmospheric plasma. JOURNAL OF HAZARDOUS MATERIALS 2013; 262:664-673. [PMID: 24121639 DOI: 10.1016/j.jhazmat.2013.09.022] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Revised: 09/09/2013] [Accepted: 09/11/2013] [Indexed: 06/02/2023]
Abstract
Two different nonthermal plasma reactors at atmospheric pressure were assessed for the removal of organic micropollutants (atrazine, chlorfenvinfos, 2,4-dibromophenol, and lindane) from aqueous solutions (1-5 mg L(-1)) at laboratory scale. Both devices were dielectric barrier discharge (DBD) reactors; one was a conventional batch reactor (R1) and the other a coaxial thin-falling-water-film reactor (R2). A first-order degradation kinetics was proposed for both experiments. The kinetic constants (k) were slightly faster in R1 (0.534 min(-1) for atrazine; 0.567 min(-1) for chlorfenvinfos; 0.802 min(-1) for 2,4-dibromophenol; 0.389 min(-1) for lindane) than in R2 (0.104 min(-1) for atrazine; 0.523 min(-1) for chlorfenvinfos; 0.273 min(-1) for 2,4-dibromophenol; 0.294 min(-1) for lindane). However, energy efficiencies were about one order of magnitude higher in R2 (89 mg kW(-1) h(-1) for atrazine; 447 mg kW(-1) h(-1) for c hlorfenvinfos; 47 mg kW(-1) h(-1) for 2,4-dibromophenol; 50 mg kW(-1) h(-1) for lindane) than in R1. Degradation by -products of all four compounds were identified in R1. As expected, when the plasma treatment (R1) was applied to industrial wastewater spiked with atrazine or lindane, micropollutant removal was also achieved, although at a lower rate than with aqueous solutions (k = 0.117 min(-1) for atrazine; k = 0.061 min(-1) for lindane).
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Affiliation(s)
- María Hijosa-Valsero
- Instituto de Diagnóstico Ambiental y Estudios del Agua (IDAEA), CID, CSIC, C/Jordi Girona 18-26, E-08034 Barcelona, Spain.
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15
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Machmudah S, Goto M. Pulsed Discharge Plasma over a Water Surface Induces Decoloration of Dyes. ACTA ACUST UNITED AC 2013. [DOI: 10.1088/1742-6596/441/1/012008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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16
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Yu L, Li X, Tu X, Wang Y, Lu S, Yan J. Decomposition of Naphthalene by dc Gliding Arc Gas Discharge. J Phys Chem A 2009; 114:360-8. [DOI: 10.1021/jp905082s] [Citation(s) in RCA: 105] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Liang Yu
- State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027, P. R. China, and Center for Surface Chemistry and Catalysis, Katholieke Universiteit Leuven, Heverlee 3001, Belgium
| | - Xiaodong Li
- State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027, P. R. China, and Center for Surface Chemistry and Catalysis, Katholieke Universiteit Leuven, Heverlee 3001, Belgium
| | - Xin Tu
- State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027, P. R. China, and Center for Surface Chemistry and Catalysis, Katholieke Universiteit Leuven, Heverlee 3001, Belgium
| | - Yu Wang
- State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027, P. R. China, and Center for Surface Chemistry and Catalysis, Katholieke Universiteit Leuven, Heverlee 3001, Belgium
| | - Shengyong Lu
- State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027, P. R. China, and Center for Surface Chemistry and Catalysis, Katholieke Universiteit Leuven, Heverlee 3001, Belgium
| | - Jianhua Yan
- State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027, P. R. China, and Center for Surface Chemistry and Catalysis, Katholieke Universiteit Leuven, Heverlee 3001, Belgium
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17
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Tokumura M, Katoh T, Ohata H, Kawase Y. Dynamic Modeling and Simulation of Ozonation in a Semibatch Bubble Column Reactor: Decolorization and Mineralization of Azo Dye Orange II by Ozone. Ind Eng Chem Res 2009. [DOI: 10.1021/ie802009j] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Masahiro Tokumura
- Research Center for Biochemical and Environmental Engineering, Department of Applied Chemistry, Toyo University, Kawagoe, Saitama 350-8585, Japan
| | - Takashi Katoh
- Research Center for Biochemical and Environmental Engineering, Department of Applied Chemistry, Toyo University, Kawagoe, Saitama 350-8585, Japan
| | - Hiroki Ohata
- Research Center for Biochemical and Environmental Engineering, Department of Applied Chemistry, Toyo University, Kawagoe, Saitama 350-8585, Japan
| | - Yoshinori Kawase
- Research Center for Biochemical and Environmental Engineering, Department of Applied Chemistry, Toyo University, Kawagoe, Saitama 350-8585, Japan
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