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Khourshidi A, Ajam F, Rabieian M, Taghavijeloudar M. Efficient degradation of p-nitrophenol from water by enhancing dielectric barrier discharge (DBD) plasma through ozone circulation: Optimization, kinetics and mechanism. CHEMOSPHERE 2024; 362:142749. [PMID: 38969213 DOI: 10.1016/j.chemosphere.2024.142749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 06/16/2024] [Accepted: 06/30/2024] [Indexed: 07/07/2024]
Abstract
Non-thermal dielectric barrier discharge (DBD) plasma has received great attention for degradation of persistent organic pollutants such as p-nitrophenol (PNP). However, the feasibility of the DBD implementation is not clear due to its high energy consumption and relatively low degradation efficiency. In this research, a novel strategy was suggested based on re-circulation of the generated O3 in the DBD system to enhance the PNP degradation efficiency and energy yield. The potential mechanism and possible pathway of PNP degradation were studied by EPR, ESR, DFT and GS-MS analytical tests. According to the results, the PNP degradation efficiency and energy yield increased from 57.4% to 94.4% and from 0.52 to 1.18 g kW-1h-1, respectively through ozone circulation into the DBD reactor. This was due to the more release of long-lived and short-lived reactive species (ROS) in the DBD-O3 system by the O3 circulation. The variations in pH (4-10), initial concentration (50-90 mg L-1), and the presence of co-existing substances in the water matrix had minimal impact on the DBD-O3 system, in comparison to the conventional system. The biological toxicity evaluation revealed that the hybrid DBD-O3 system transform PNP to less toxic intermediates. This study proposes a promising strategy to improve the utilization of DBD for the degradation of PNP.
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Affiliation(s)
- Amirhossein Khourshidi
- Department of Environmental Engineering, Faculty of Civil Engineering, Babol Noshirvani University of Technology, 47148-7313, Babol, Iran
| | - Fatemeh Ajam
- Department of Environmental Engineering, Faculty of Civil Engineering, Babol Noshirvani University of Technology, 47148-7313, Babol, Iran
| | - Masoud Rabieian
- Department of Environmental Engineering, Faculty of Civil Engineering, Babol Noshirvani University of Technology, 47148-7313, Babol, Iran
| | - Mohsen Taghavijeloudar
- Department of Civil and Environmental Engineering, Seoul National University, 151-744, Seoul, South Korea.
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2
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Thirumurugan N, Nandy N, Amarnath P, Yugeswaran S, Suresh K, Sujeeth NK, Gnanadesigan M. Expeditive carbofuran pesticide degradation by submerged thermal plasma and its accelerated mineralization by persulfate addition. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 347:123779. [PMID: 38484961 DOI: 10.1016/j.envpol.2024.123779] [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: 12/26/2023] [Revised: 02/26/2024] [Accepted: 03/11/2024] [Indexed: 03/19/2024]
Abstract
Rapid degradation of carbofuran (CBF) pesticide is effectively achieved by submerged thermal plasma (STP) without and with the addition of persulfate (PS) at two different concentrations (10 and 20 ppm). Degradation efficiency was examined using high-performance liquid chromatography (HPLC), and mineralization percentage was determined by total organic carbon (TOC) analysis. Adding 10 ppm PS showed higher degradation and mineralization percentages of 99.5% and 65.2%, respectively, than mere plasma treatment and 20 ppm PS addition to CBF solution. A relatively higher energy yield of 40 mg/kWh and a first order kinetic reaction rate of 0.262 min-1 were obtained in the 10 PS added STP treatment. Liquid chromatography mass spectrometry (LCMS) analysis illustrated reaction intermediates formed during plasma treatment. Scavenger investigation implied that •OH radical is the prime cause of CBF degradation, as degradation percentage declined to 50% in all conditions. Toxicity assessment of CBF and its degradation products was predicted using Toxicity estimation software tool (TEST), and plasma treated solutions (PTS) were experimentally investigated on Eudrilus eugeniae earthworms by monitoring its mortality rate, self-assemblage, and histopathological analysis. A lower mortality rate (46%) and self-assemblage (167 s) of earthworms were detected for plasma treated CBF than for the other conditions. The results reveal that PTS is less toxic for earthworms than untreated CBF solution. These findings imply that STP is an effective technique for bio-recalcitrant pollutants degradation in agrochemical industries.
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Affiliation(s)
- Nagaraj Thirumurugan
- Surface and Environmental Control Plasma Laboratory, Department of Physics, Bharathiar University, Coimbatore, 641046, India
| | - Nanditta Nandy
- Applied Thermal Plasma Laboratory, Department of Physics, Pondicherry University, Puducherry, 605014, India
| | - Pasupathi Amarnath
- Applied Thermal Plasma Laboratory, Department of Physics, Pondicherry University, Puducherry, 605014, India
| | - Subramaniam Yugeswaran
- Applied Thermal Plasma Laboratory, Department of Physics, Pondicherry University, Puducherry, 605014, India
| | - Kalidass Suresh
- Surface and Environmental Control Plasma Laboratory, Department of Physics, Bharathiar University, Coimbatore, 641046, India.
| | - Nachimuthu Krishnan Sujeeth
- Natural Product Research Laboratory, Department of Microbial Biotechnology, Bharathiar University, Coimbatore, 641046, India
| | - Murugesan Gnanadesigan
- Natural Product Research Laboratory, Department of Microbial Biotechnology, Bharathiar University, Coimbatore, 641046, India
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3
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Du Y, Wen A, Wang H, Xiao Y, Yuan S, Yu H, Xie Y, Guo Y, Cheng Y, Yao W. Degradation of carbofuran and acetamiprid in wolfberry by dielectric barrier discharge plasma: Kinetics, pathways, toxicity and molecular dynamics simulation. CHEMOSPHERE 2024; 353:141561. [PMID: 38417492 DOI: 10.1016/j.chemosphere.2024.141561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 02/23/2024] [Accepted: 02/24/2024] [Indexed: 03/01/2024]
Abstract
Carbofuran and acetamiprid pose the highest residual risk among pesticides found in wolfberries. This study aimed to degrade these pesticides in wolfberries using a multi-array dielectric barrier discharge plasma (DBD), evaluate the impact on safety and quality and explore their degradation mechanism. The results showed that DBD treatment achieved 90.6% and 80.9% degradation rates for carbofuran and acetamiprid, respectively, following a first-order kinetic reaction. The 120 s treatment successfully reduced pesticide contamination to levels below maximum residue limits. Treatment up to 180 s did not adversely affect the quality of wolfberries. QTOF/MS identification and degradation pathway analysis revealed that DBD broke down the furan ring and carbamate group of carbofuran, while replacing the chlorine atom and oxidizing the side chain of acetamiprid, leading to degradation. The toxicological evaluation showed that the degradation products were less toxic than undegraded pesticides. Molecular dynamics simulations revealed the reactive oxygen species (ROS) facilitated the degradation of pesticides through dehydrogenation and radical addition reactions. ROS type and dosage significantly affected the breakage of chemical bonds associated with toxicity (C4-O5 and C2-Cl1). These findings deepen insights into the plasma chemical degradation of pesticides.
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Affiliation(s)
- Yuhang Du
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China
| | - Aying Wen
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China
| | - Huihui Wang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China
| | - Yuan Xiao
- School of Public Health, Wannan Medical College, Wuhu, Anhui, China
| | - Shaofeng Yuan
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China
| | - Hang Yu
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China
| | - Yunfei Xie
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China
| | - Yahui Guo
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China
| | - Yuliang Cheng
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China
| | - Weirong Yao
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China.
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Sojithamporn P, Leksakul K, Sawangrat C, Charoenchai N, Boonyawan D. Degradation of Pesticide Residues in Water, Soil, and Food Products via Cold Plasma Technology. Foods 2023; 12:4386. [PMID: 38137190 PMCID: PMC10743213 DOI: 10.3390/foods12244386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 11/30/2023] [Accepted: 12/02/2023] [Indexed: 12/24/2023] Open
Abstract
Water, soil, and food products contain pesticide residues. These residues result from excessive pesticides use, motivated by the fact that agricultural productivity can be increased by the use of these pesticides. The accumulation of these residues in the body can cause health problems, leading to food safety concerns. Cold plasma technology has been successfully employed in various applications, such as seed germination, bacterial inactivation, wound disinfection, surface sterilization, and pesticide degradation. In recent years, researchers have increasingly explored the effectiveness of cold plasma technology in the degradation of pesticide residues. Most studies have shown promising outcomes, encouraging further research and scaling-up for commercialization. This review summarizes the use of cold plasma as an emerging technology for pesticide degradation in terms of the plasma system and configuration. It also outlines the key findings in this area. The most frequently adopted plasma systems for each application are identified, and the mechanisms underlying pesticide degradation using cold plasma technology are discussed. The possible factors influencing pesticide degradation efficiency, challenges in research, and future trends are also discussed. This review demonstrates that despite the nascent nature of the technology, the use of cold plasma shows considerable potential in regards to pesticide residue degradation, particularly in food applications.
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Affiliation(s)
- Phanumas Sojithamporn
- Graduate Program in Industrial Engineering, Department of Industrial Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Komgrit Leksakul
- Department of Industrial Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai 50200, Thailand; (C.S.); (N.C.)
| | - Choncharoen Sawangrat
- Department of Industrial Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai 50200, Thailand; (C.S.); (N.C.)
| | - Nivit Charoenchai
- Department of Industrial Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai 50200, Thailand; (C.S.); (N.C.)
| | - Dheerawan Boonyawan
- Plasma and Beam Physics Research Center (PBP), Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand;
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5
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Kyere-Yeboah K, Bique IK, Qiao XC. Advances of non-thermal plasma discharge technology in degrading recalcitrant wastewater pollutants. A comprehensive review. CHEMOSPHERE 2023; 320:138061. [PMID: 36754299 DOI: 10.1016/j.chemosphere.2023.138061] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 01/26/2023] [Accepted: 02/04/2023] [Indexed: 06/18/2023]
Abstract
With development and urbanization, the amount of wastewater generated due to human activities drastically increases yearly, causing water pollution and intensifying the already worsened water crisis. Although convenient, conventional wastewater treatment methods such as activated sludge, stabilization ponds, and adsorption techniques cannot fully eradicate the complex and recalcitrant contaminants leading to toxic byproducts generation. Recent advancements in wastewater treatment techniques, specifically non-thermal plasma technology, have been extensively investigated for the degradation of complex pollutants in wastewater. Non-thermal plasma is an effective alternative for degrading and augmenting the biodegradability of recalcitrant pollutants due to its ability to generate reactive species in situ. This article critically reviews the non-thermal plasma technology, considering the plasma discharge configuration and reactor types. Furthermore, the influence of operational parameters on the efficiency of the plasma systems and the reactive species generated by the system during discharge has gained significant interest and hence been discussed. Also, the application of non-thermal plasma technology for the degradation of pharmaceuticals, pesticides, and dyes and the inactivation of microbial activities are outlined in this review article. Additionally, optimistic applications involving the combination of non-thermal plasma and catalysts and pilot and industrial-scale projects utilizing non-thermal plasma technology have been addressed. Concluding perceptions on the challenges and future perspectives of the non-thermal technology on wastewater treatment are accentuated. Overall, this review outlines a comprehensive understanding of the non-thermal plasma technology for recalcitrant pollutant degradation from a scientific perspective providing detailed instances for reference.
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Affiliation(s)
- Kwasi Kyere-Yeboah
- School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai, 200237, China.
| | - Ikenna Kemba Bique
- School of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China.
| | - Xiu-Chen Qiao
- School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai, 200237, China.
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6
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Kyere-Yeboah K, Qiao XC. Process optimization of dielectric barrier discharge reactor for chloroform degradation using central composite design. CHEM ENG COMMUN 2023. [DOI: 10.1080/00986445.2023.2172571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Kwasi Kyere-Yeboah
- School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai, China
| | - Xiu-chen Qiao
- School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai, China
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7
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Feasibility of surface dielectric barrier discharge in wastewater treatment: Spectroscopic modeling, diagnostic, and dye mineralization. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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8
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Topolovec B, Škoro N, Puаč N, Petrovic M. Pathways of organic micropollutants degradation in atmospheric pressure plasma processing - A review. CHEMOSPHERE 2022; 294:133606. [PMID: 35033511 DOI: 10.1016/j.chemosphere.2022.133606] [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: 10/08/2021] [Revised: 12/28/2021] [Accepted: 01/11/2022] [Indexed: 06/14/2023]
Abstract
Concern of toxic compounds and their, potentially more harmful degradation products, present in aquatic environment alarmed scientific community and research on the development of novel technologies for wastewater treatment had become of great interest. Up to this date, many papers pointed out the challenges and limitations of conventional wastewater treatment and of some advanced oxidation processes. Advanced technologies based on the use of non-equilibrium or non-thermal plasma had been recognized as a possible solution for, not only degradation, but for complete removal of recalcitrant organic micropollutants. While previous review papers have been focused on plasma physics and chemistry of different types of discharges for few organic micropollutants, this paper brings comprehensive review of current knowledge on the chemistry and degradation pathways by using different non-thermal plasma types for several micropollutants' classes, such as pharmaceuticals, perfluorinated compounds, pesticides, phenols and dyes and points out some major research gaps.
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Affiliation(s)
- Barbara Topolovec
- Catalan Institute for Water Research (ICRA), Emili Grahit 101, 17003, Girona, Spain; University of Girona, Girona, Spain
| | - Nikola Škoro
- Institute of Physics, University of Belgrade, Pregrevica 118, 11080, Belgrade, Serbia
| | - Nevena Puаč
- Institute of Physics, University of Belgrade, Pregrevica 118, 11080, Belgrade, Serbia
| | - Mira Petrovic
- Catalan Institute for Water Research (ICRA), Emili Grahit 101, 17003, Girona, Spain; Catalan Institution for Research and Advanced Studies (ICREA), Passeig Lluis Companys 23, 08010, Barcelona, Spain.
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9
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Xiang Q, Huangfu L, Dong S, Ma Y, Li K, Niu L, Bai Y. Feasibility of atmospheric cold plasma for the elimination of food hazards: Recent advances and future trends. Crit Rev Food Sci Nutr 2021:1-19. [PMID: 34761962 DOI: 10.1080/10408398.2021.2002257] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
In recent decades, food safety has emerged as a worldwide public health issue with economic and political implications. Pesticide residues, mycotoxins, allergens, and antinutritional factors are the primary concerns associated with food products due to their potential adverse health effects. Although various conventional processing methods (such as washing, peeling, and cooking) have been used to reduce or eliminate these hazards from agricultural food materials, the results obtained are not quite satisfactory. Recently, atmospheric cold plasma (ACP), an emerging low -temperature and green processing technology, has shown great potential for mitigating food hazards. However, detailed descriptions of the effects of ACP treatment on food hazards are still not available. Thus, the current review aims to highlight recent studies on the efficacy and application of ACP in the reduction or elimination of pesticide residues, mycotoxins, allergens, and antinutritional factors in various food products. The possible working mechanisms of ACP and its effect on food quality, and the toxicity of degradation products are emphatically discussed. In addition, multiple factors affecting the efficacy of ACP are summarized in detail. At the same time, the major technical challenges for practical application and future development prospects of this emerging technology are also highlighted.
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Affiliation(s)
- Qisen Xiang
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, PR China.,Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zhengzhou, PR China
| | - Lulu Huangfu
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, PR China.,Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zhengzhou, PR China
| | - Shanshan Dong
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, PR China.,Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zhengzhou, PR China
| | - Yunfang Ma
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, PR China.,Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zhengzhou, PR China
| | - Ke Li
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, PR China.,Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zhengzhou, PR China
| | - Liyuan Niu
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, PR China.,Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zhengzhou, PR China
| | - Yanhong Bai
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, PR China.,Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zhengzhou, PR China
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Jose J, Philip L. Comparative study of degradation of toluene and methyl isobutyl ketone (MIBK) in aqueous solution by pulsed corona discharge plasma. J Environ Sci (China) 2021; 101:382-396. [PMID: 33334533 DOI: 10.1016/j.jes.2020.09.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 09/08/2020] [Accepted: 09/08/2020] [Indexed: 06/12/2023]
Abstract
Effectiveness of pulsed power plasma for the degradation of two toxic volatile organic compounds (VOCs), toluene and methyl isobutyl ketone (MIBK), in aqueous solution was evaluated. The plasma degradation of MIBK has been studied for the first time. The influence of initial concentration of target compound, solution pH and scavengers on percentage degradation was evaluated. 100% removal of 200 mg/L of toluene and MIBK was achieved both in liquid and gaseous phases after 12 and 16 min of plasma treatment, respectively. The first order rate constant of toluene and MIBK degradation (for 200 mg/L each) was 0.421 and 0.319 min-1 respectively when they were treated individually, and these values decreased slightly during degradation of their mixture. MIBK degradation was slower than toluene and it might be due to semi volatile and hydrophilic nature of MIBK. The effect of initial concentration of toluene and MIBK showed different degradation patterns. Highest degradation of both the compounds was obtained in neutral pH and in absence of scavengers. •OH radical was the major reactive species involved in their degradation. Their degradation in real environmental matrices showed that removal reduced significantly in secondary effluent due to scavenging of reactive species by various ions and organic matter. The total number of degradation intermediates identified in case of toluene and MIBK was 11 and 14 respectively and formate was the one recalcitrant byproduct generated. The degradation pathway of toluene and MIBK involving reactions of reactive oxygen and nitrogen species and reductive species is proposed.
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Affiliation(s)
- Jerin Jose
- Department of Civil Engineering, Indian Institute of Technology Madras, Chennai 600036, India
| | - Ligy Philip
- Department of Civil Engineering, Indian Institute of Technology Madras, Chennai 600036, India.
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Gavahian M, Sarangapani C, Misra NN. Cold plasma for mitigating agrochemical and pesticide residue in food and water: Similarities with ozone and ultraviolet technologies. Food Res Int 2021; 141:110138. [PMID: 33642005 DOI: 10.1016/j.foodres.2021.110138] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 01/06/2021] [Accepted: 01/07/2021] [Indexed: 11/27/2022]
Abstract
Pesticide and agrochemical residues in food and water are among hazardous chemicals that are associated with adverse health effects. Consequently, technologies for pesticide abatement in food and water remain in focus. Cold plasma is an emerging decontamination technology, that is being increasingly explored for the abatement of agrochemical and pesticide residue in food and water. In some cases, rapid and complete degradation of pesticide residues has come to light. Such promising results encourage exploring scale-up and commercialization. To achieve this, unraveling mechanisms involved in plasma decontamination and the nature of degradation products is needed. The present review identifies the mechanisms involved in plasma- assisted removal of pesticide residues from food and water, draws parallels with mechanism of ozone and ultraviolet technologies, investigates the chemistry of the intermediates and degradates, and identifies some future research needs. The review recognizes that mechanisms involved in plasma processes have overlapping similarities to those identified for ozone and ultraviolet light, involving oxidation by hydroxyl radical and photo-oxidation. The toxicity of intermediates and degradates in plasma processing have not received much attention. The safety aspects of end products form plasma led degradation of pesticides should be considered for practical exploitation. Identification of intermediates and degradation products, recognition of most potent plasma species, understanding the influence of co-existing entities, the energy efficiency of plasma reactors, and the process economics deserve research focus.
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Affiliation(s)
- Mohsen Gavahian
- Department of Food Science, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan, ROC.
| | - Chaitanya Sarangapani
- School of Food Science and Environmental health, Technological University Dublin, Dublin, Ireland
| | - N N Misra
- Department of Engineering, Faculty of Agriculture, Dalhousie University, Nova Scotia, Canada
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12
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Mukherjee A, Mullick A, Teja R, Vadthya P, Roy A, Moulik S. Performance and energetic analysis of hydrodynamic cavitation and potential integration with existing advanced oxidation processes: A case study for real life greywater treatment. ULTRASONICS SONOCHEMISTRY 2020; 66:105116. [PMID: 32252011 DOI: 10.1016/j.ultsonch.2020.105116] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Revised: 03/29/2020] [Accepted: 03/29/2020] [Indexed: 05/27/2023]
Abstract
The current work is a "first of a kind" report on the feasibility and efficacy of hydrodynamic cavitation integrated Advanced Oxidation Processes (AOP's) towards treatment of a real life greywater stream in form of kitchen wastewater. The work has been carried out in a sequential manner starting with geometry optimization of orifice plate (cavitating device) followed by studying the effects of inlet pressure, pH, effluent dilution ratio on degradation of TOC and COD. Under optimized conditions of pH 3, 4 bar pressure, TOC and COD reduction of 18.23 and 25% were obtained using HC for a period of 120 min. To improve the performance of HC, further studies were carried out by integrating H2O2and O3with HC. Using 5 g/h optimum dosage of H2O2, 87.5% reduction in COD was obtained beyond which it started decreasing. Moreover, integrating O3(57.5% reduction in COD) increased the treatment cost. However, a hybrid process (HC + H2O2 + O3) yielded 76.26 and 98.25% reductions in TOC and COD within60 min.The energetics of all the processes and the treatment costs were studied in detail and it was concluded that combined process of HC + H2O2 + O3surpassed by far the performances of HC + H2O2and HC + O3.
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Affiliation(s)
- Anupam Mukherjee
- Centre of Excellence in Process Engineering & Intensification (COE-PE&I), Department of Chemical Engineering Goa, BITS Pilani, Goa 403726, India
| | - Aditi Mullick
- Cavitation and Dynamics Lab, Department of Process Engineering & Technology Transfer, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Ravi Teja
- Cavitation and Dynamics Lab, Department of Process Engineering & Technology Transfer, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Pavani Vadthya
- Cavitation and Dynamics Lab, Department of Process Engineering & Technology Transfer, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Anirban Roy
- Centre of Excellence in Process Engineering & Intensification (COE-PE&I), Department of Chemical Engineering Goa, BITS Pilani, Goa 403726, India.
| | - Siddhartha Moulik
- Cavitation and Dynamics Lab, Department of Process Engineering & Technology Transfer, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India.
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13
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Singh RK, Philip L, Ramanujam S. Removal of 2,4-dichlorophenoxyacetic acid in aqueous solution by pulsed corona discharge treatment: Effect of different water constituents, degradation pathway and toxicity assay. CHEMOSPHERE 2017; 184:207-214. [PMID: 28595146 DOI: 10.1016/j.chemosphere.2017.05.134] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2017] [Revised: 05/20/2017] [Accepted: 05/22/2017] [Indexed: 06/07/2023]
Abstract
A multiple pin-plane corona discharge reactor was used to generate plasma for the degradation of 2,4 dichlorophenoxyacetic acid (2,4-D) from the aqueous solution. The 2,4-D of concentration 1 mg/L was completely removed within 6 min of plasma treatment. Almost complete mineralization was achieved after the treatment time of 14 min for a 2,4-D concentration of 10 mg/L. Effects of different water constituents such as carbonates, nitrate, sulphate, chloride ions, natural organic matter (humic acids) and pH on 2,4-D degradation was studied. A significant antagonistic effect of carbonate and humic acid was observed, whereas, the effects of other ions were insignificant. A higher first order rate constant of 1.73 min-1 was observed, which was significantly decreased in the presence of carbonate ions and humic acids. Also, a higher degradation of 2,4-D was observed in acidic pH conditions. Different 2,4-D intermediates were detected and the degradation pathway of 2,4-D in plasma treatment process was suggested. The toxicity of 10 mg/L 2,4-D was completely eradicated after 10 min of plasma treatment.
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Affiliation(s)
- Raj Kamal Singh
- Department of Civil Engineering, Indian Institute of Technology Madras, 600036, India
| | - Ligy Philip
- Department of Civil Engineering, Indian Institute of Technology Madras, 600036, India.
| | - Sarathi Ramanujam
- Department of Electrical Engineering, Indian Institute of Technology Madras, 600036, India
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14
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Singh RK, Philip L, Ramanujam S. Rapid degradation, mineralization and detoxification of pharmaceutically active compounds in aqueous solution during pulsed corona discharge treatment. WATER RESEARCH 2017; 121:20-36. [PMID: 28505531 DOI: 10.1016/j.watres.2017.05.006] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2017] [Revised: 05/01/2017] [Accepted: 05/04/2017] [Indexed: 06/07/2023]
Abstract
In the present study, plasma generated by pulsed corona discharge was used for the degradation of diclofenac, carbamazepine and ciprofloxacin. Pollutants in aqueous solution were plasma treated under two categories: single and mixed pollutant condition. Mixed pollutant condition showed an antagonistic behaviour and thus the degradation time was higher for mixed condition compared to the single condition. At different voltage and frequencies, degradation efficiency followed the trend, diclofenac>carbamazepine>ciprofloxacin. Acidic pH slightly favoured the degradation process whereas in presence of radical scavengers (HCO3-, CO32- and humic acid) the degradation yield was significantly decreased. With an input power of 101.5 W, complete degradation was achieved within 4-16 min of plasma treatment for pharmaceutical's concentrations of 1-10 mg/L. As the pollutant concentration increased from 1 to 10 mg/L, the pseudo first order rate constant decreased, while yield increased. Complete degradation pathway of diclofenac, carbamazepine and ciprofloxacin in plasma treatment process are proposed by identifying the intermediates using LC-MS analysis. TOC analysis confirmed 80% mineralization within 10 min of plasma treatment for higher pharmaceutical's concentrations of 10 mg/L. The microalgae ecotoxicity study and disc diffusion test confirmed the complete detoxification of PACs that took place after 6 min of plasma treatment.
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Affiliation(s)
- Raj Kamal Singh
- Department of Civil Engineering, Indian Institute of Technology, Madras, 600036, India
| | - Ligy Philip
- Department of Civil Engineering, Indian Institute of Technology, Madras, 600036, India.
| | - Sarathi Ramanujam
- Department of Electrical Engineering, Indian Institute of Technology, Madras, 600036, India
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15
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Dávila-Jiménez MM, Elizalde-González MP, García-Díaz E, González M, Mendoza ME, Robles-Águila MJ. Carbofuran degraded by iron-doped anatase: Weakening the cholinesterase inhibitory activity in the photoproducts mixture. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2017; 52:538-546. [PMID: 28494203 DOI: 10.1080/03601234.2017.1316161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Carbofuran is a toxic carbamate pesticide, and its use has increased in recent years. While marketing information indicates stability in different chemical media, carbofuran exhibits relative photolability. The aim of this research was to decompose carbofuran and to identify the photoproducts achieved when two different doped titania photocatalysts were employed under UV irradiation. The iron-doped TiO2 materials were obtained (a) via a hydrothermal method and (b) by an ultrasound-assisted sol-gel method. The precursors were TiOSO4⋅xH2O and Fe3(NO3)·9H2O. X-ray studies confirmed that the anatase phase of the iron-doped TiO2 resulted from the two preparation methods. The photocatalytic performance of the prepared materials was monitored by LC/ESI-QTOF-MS, enabling the identification of photoproducts: oxo-carbamates, hydroxylated benzofuranes, a carboxamide, and one amine. By using the iron-doped TiO2 materials, 2,2-dimethyl-2,3-dihydrobenzofuran-3,7-diol was the most abundant photoproduct, and N,2,2-trimethyl-2,3-dihydrobenzofuran-7-amine was the only compound that had not been previously reported in the photolysis and photocatalysis of carbofuran. The product 3-hydroxy carbofuran, a cholinesterase inhibitor, was quantified and was found to be transformed into compounds that lack this inhibitive property.
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Affiliation(s)
| | - María P Elizalde-González
- b Chemistry Centre, Institute of Sciences , Autonomous University of Puebla (BUAP) , Puebla , Mexico
| | - Esmeralda García-Díaz
- b Chemistry Centre, Institute of Sciences , Autonomous University of Puebla (BUAP) , Puebla , Mexico
| | - Miguel González
- a Faculty of Chemical Sciences , Autonomous University of Puebla (BUAP) , Puebla , Mexico
| | - M E Mendoza
- c Institute of Physics, Autonomous University of Puebla (BUAP) , Puebla , Mexico
| | - M J Robles-Águila
- b Chemistry Centre, Institute of Sciences , Autonomous University of Puebla (BUAP) , Puebla , Mexico
- c Institute of Physics, Autonomous University of Puebla (BUAP) , Puebla , Mexico
- d Research Center on Semiconductor Devices , Institute of Sciences, Autonomous University of Puebla (BUAP) , Puebla , Mexico
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