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Chen M, Moher D, Rogers J, Yatom S, Thimsen E, Parker KM. Effects of Halides on Organic Compound Degradation during Plasma Treatment of Brines. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:5139-5152. [PMID: 38446791 DOI: 10.1021/acs.est.3c07162] [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: 03/08/2024]
Abstract
Plasma has been proposed as an alternative strategy to treat organic contaminants in brines. Chemical degradation in these systems is expected to be partially driven by halogen oxidants, which have been detected in halide-containing solutions exposed to plasma. In this study, we characterized specific mechanisms involving the formation and reactions of halogen oxidants during plasma treatment. We first demonstrated that addition of halides accelerated the degradation of a probe compound known to react quickly with halogen oxidants (i.e., para-hydroxybenzoate) but did not affect the degradation of a less reactive probe compound (i.e., benzoate). This effect was attributed to the degradation of para-hydroxybenzoate by hypohalous acids, which were produced via a mechanism involving halogen radicals as intermediates. We applied this mechanistic insight to investigate the impact of constituents in brines on reactions driven by halogen oxidants during plasma treatment. Bromide, which is expected to occur alongside chloride in brines, was required to enable halogen oxidant formation, consistent with the generation of halogen radicals from the oxidation of halides by hydroxyl radical. Other constituents typically present in brines (i.e., carbonates, organic matter) slowed the degradation of organic compounds, consistent with their ability to scavenge species involved during plasma treatment.
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Affiliation(s)
- Moshan Chen
- Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, St. Louis, Missouri 63130, United States
| | - Dillon Moher
- Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, St. Louis, Missouri 63130, United States
| | - Jacqueline Rogers
- Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, St. Louis, Missouri 63130, United States
| | - Shurik Yatom
- Princeton Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08540 , United States
| | - Elijah Thimsen
- Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, St. Louis, Missouri 63130, United States
| | - Kimberly M Parker
- Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, St. Louis, Missouri 63130, United States
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de Melo TF, Rocha LC, Silva RP, Pessoa RS, Negreiros AMP, Sales Júnior R, Tavares MB, Alves Junior C. Plasma–Saline Water Interaction: A Systematic Review. MATERIALS 2022; 15:ma15144854. [PMID: 35888319 PMCID: PMC9324451 DOI: 10.3390/ma15144854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 06/28/2022] [Accepted: 07/08/2022] [Indexed: 11/16/2022]
Abstract
Plasma–liquid interaction research has developed substantially in recent years due, mostly, to the numerous applications of cold atmospheric plasma (CAP). Plasma–liquid interactions are influenced by the concentrations of the ionic species present in the liquid environment, and few studies have paid attention to saline water, which generally mediates the reactions in many plasma applications. Therefore, the present review aims to explore the main results and the influence of variables on the modification of properties of saline water by CAP sources following the guidelines of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). The searches were carried out in the Scopus, Science Direct, and Web of Science databases, resulting in the inclusion of 37 studies. The main effects of the interaction between CAP and saline water are (i) the production of reactive oxygen and nitrogen species (RONS); (ii) the increase in conductivity and decrease in pH, directly proportional to the increase in discharge voltage; (iii) and the effective area of interaction and the shortest distance between electrode and solution. Other effects are the localized evaporation and crystallization of salts, which make the interaction between plasma and saline water a promising field in the development of technologies for desalination and improvement of liquid properties.
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Affiliation(s)
- Tatiane Fonseca de Melo
- Laboratorio de Plasma Aplicação na Agricultura, Departamento de Ciências Exatas e Naturais, Saúde e Meio Ambiente—Labplasma, Universidade Federal Rural do Semiárido, Mossoró 59625-900, Brazil; (L.C.R.); (R.P.S.); (C.A.J.)
- Correspondence:
| | - Lucas Cabral Rocha
- Laboratorio de Plasma Aplicação na Agricultura, Departamento de Ciências Exatas e Naturais, Saúde e Meio Ambiente—Labplasma, Universidade Federal Rural do Semiárido, Mossoró 59625-900, Brazil; (L.C.R.); (R.P.S.); (C.A.J.)
| | - Rútilo Pereira Silva
- Laboratorio de Plasma Aplicação na Agricultura, Departamento de Ciências Exatas e Naturais, Saúde e Meio Ambiente—Labplasma, Universidade Federal Rural do Semiárido, Mossoró 59625-900, Brazil; (L.C.R.); (R.P.S.); (C.A.J.)
| | - Rodrigo Sávio Pessoa
- Laboratório de Plasmas e Processos, Instituto Tecnológico de Aeronáutica, São José dos Campos 12228-900, Brazil;
| | - Andreia Mitsa Paiva Negreiros
- Departamento de Ciências Agronômicas e Florestais, Universidade Federal Rural do Semi-Árido, Mossoro 59625-900, Brazil; (A.M.P.N.); (R.S.J.); (M.B.T.)
| | - Rui Sales Júnior
- Departamento de Ciências Agronômicas e Florestais, Universidade Federal Rural do Semi-Árido, Mossoro 59625-900, Brazil; (A.M.P.N.); (R.S.J.); (M.B.T.)
| | - Moisés Bento Tavares
- Departamento de Ciências Agronômicas e Florestais, Universidade Federal Rural do Semi-Árido, Mossoro 59625-900, Brazil; (A.M.P.N.); (R.S.J.); (M.B.T.)
| | - Clodomiro Alves Junior
- Laboratorio de Plasma Aplicação na Agricultura, Departamento de Ciências Exatas e Naturais, Saúde e Meio Ambiente—Labplasma, Universidade Federal Rural do Semiárido, Mossoró 59625-900, Brazil; (L.C.R.); (R.P.S.); (C.A.J.)
- Programa de Pós-Graduação em Engenharia Mecânica, Universidade Federal do Rio Grande do Norte, Natal 59078-970, Brazil
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Xu H, Wang L, Li X, Chen Z, Zhang T. Thiourea Dioxide Coupled with Trace Cu(II): An Effective Process for the Reductive Degradation of Diatrizoate. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:12009-12018. [PMID: 34431661 DOI: 10.1021/acs.est.1c03823] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Diatrizoate, a refractory ionic iodinated X-ray contrast media (ICM) compound, cannot be efficiently degraded in a complex wastewater matrix even by advanced oxidation processes. We report in this research that a homogeneous process, thiourea dioxide (TDO) coupled with trace Cu(II) (several micromoles, ubiquitous in some wastewater), is effective for reductive deiodination and degradation of diatrizoate at neutral pH values. Specifically, the molar ratio of iodide released to TDO consumed reached 2 under ideal experimental conditions. TDO eventually decomposed into urea and sulfite/sulfate. Based on the results of diatrizoate degradation, TDO decomposition, and Cu(I) generation and consumption during the TDO-Cu(II) reaction, we confirmed that Cu(I) is responsible for diatrizoate degradation. However, free Cu(I) alone did not work. It was proposed that Cu(I) complexes are actual reactive species toward diatrizoate. Inorganic anions and effluent organic matter negatively influence diatrizoate degradation, but by increasing the TDO dosage, as well as extending the reaction time, its degradation efficiency can still be guaranteed for real hospital wastewater. This reduction reaction could be potentially useful for in situ deiodination and degradation of diatrizoate in hospital wastewater before discharge into municipal sewage networks.
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Affiliation(s)
- Haodan Xu
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Lihong Wang
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Xuchun Li
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Zhiqiang Chen
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Tao Zhang
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
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Sengar A, Vijayanandan A. Comprehensive review on iodinated X-ray contrast media: Complete fate, occurrence, and formation of disinfection byproducts. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 769:144846. [PMID: 33736235 DOI: 10.1016/j.scitotenv.2020.144846] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 12/19/2020] [Accepted: 12/20/2020] [Indexed: 05/22/2023]
Abstract
Iodinated contrast media (ICM) are drugs which are used in medical examinations for organ imaging purposes. Wastewater treatment plants (WWTPs) have shown incapability to remove ICM, and as a consequence, ICM and their transformation products (TPs) have been detected in environmental waters. ICM show limited biotransformation and low sorption potential. ICM can act as iodine source and can react with commonly used disinfectants such as chlorine in presence of organic matter to yield iodinated disinfection byproducts (IDBPs) which are more cytotoxic and genotoxic than conventionally known disinfection byproducts (DBPs). Even highly efficient advanced treatment systems have failed to completely mineralize ICM, and TPs that are more toxic than parent ICM are produced. This raises issues regarding the efficacy of existing treatment technologies and serious concern over disinfection of ICM containing waters. Realizing this, the current review aims to capture the attention of scientific community on areas of less focus. The review features in depth knowledge regarding complete environmental fate of ICM along with their existing treatment options.
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Affiliation(s)
- Ashish Sengar
- Department of Civil Engineering, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Arya Vijayanandan
- Department of Civil Engineering, Indian Institute of Technology Delhi, New Delhi 110016, India.
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Chen Y, Li S, Hu J. Photoelectrocatalytic degradation of organics and formation of disinfection byproducts in reverse osmosis concentrate. WATER RESEARCH 2020; 168:115105. [PMID: 31614236 DOI: 10.1016/j.watres.2019.115105] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 09/17/2019] [Accepted: 09/21/2019] [Indexed: 06/10/2023]
Abstract
The high content of organics in municipal reverse osmosis concentrate (ROC) requires proper treatment. Here, this study applied the photoelectrocatalysis (PEC) to reduce the concentration of organics in ROC. Meanwhile, the formation of disinfection byproducts (DBPs) was investigated. Participation of primary oxidants in organics removal and DBPs formation was revealed at different anodic potentials and pHs. The results showed that PEC process effectively oxidized the organics in ROC, achieving the highest mineralization rate of 63%. Increasing anodic potential from 0 to 1.0 V enhanced the oxidations of bulk organics (i.e., dissolved organic carbons (DOC), UV254, fluorescence, large molecular weight compounds) and trace-level pharmaceuticals. Raising anodic potential to higher than 1.0 V slightly benefited the oxidations of bulk organics, owing to the relatively stable formation of hydroxyl radicals (OH•) and radical reactive chlorine species (r-RCS). The continuously rising concentration of free chlorine (FC) accelerated the decompositions of pharmaceuticals at ≥ 1.0 V. However, the generated FC raised the concentration of DBPs up to 10.36 μmol/L at 3.0 V. Lowering initial pH from 7-9 to 4-6 improved the mineralization rates by around 20% due to the higher formation of OH• at pH 4-6. Further decreasing initial pH from 6 to 4 enhanced the breakdown of large molecular weight compounds as well as the decomposition of pharmaceuticals. This came from the strengthened formation of FC and r-RCS at lower pHs. The intense participation of FC and r-RCS resulted in a higher total DBP concentration at pH 4-6 than that at pH 7-9. However, the individual species of DBPs changed differently toward the pH shift. The results of this study show that PEC could be an alternative for organics oxidation in ROC with proper control of DBPs formation.
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Affiliation(s)
- Yiwei Chen
- Department of Civil & Environmental Engineering, National University of Singapore, 1 Engineering Drive 2, Singapore, 117576, Singapore
| | - Si Li
- Department of Civil & Environmental Engineering, National University of Singapore, 1 Engineering Drive 2, Singapore, 117576, Singapore
| | - Jiangyong Hu
- Department of Civil & Environmental Engineering, National University of Singapore, 1 Engineering Drive 2, Singapore, 117576, Singapore.
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Ayyavoo J, Kim IC, Kwon YN. Preparation of EVOH and aramid-modified polar nylon membrane for the removal of hard and soft colloidal particles. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2018.04.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Gargouri B, Gargouri OD, Khmakhem I, Ammar S, Abdelhèdi R, Bouaziz M. Chemical composition and direct electrochemical oxidation of table olive processing wastewater using high oxidation power anodes. CHEMOSPHERE 2017; 166:363-371. [PMID: 27700999 DOI: 10.1016/j.chemosphere.2016.09.080] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 09/18/2016] [Accepted: 09/19/2016] [Indexed: 06/06/2023]
Abstract
Table olive processing wastewater (TOW) is a notoriously polluting due to its high organic and phenol content. To reduce them, an electrochemical process has been studied for the treatment of this effluent. Experiments were performed with a cell equipped with lead dioxide (PbO2) or boron-doped diamond (BDD) as anode and platinum as cathode, where Table Olive Wastewater (TOW) were destroyed by hydroxyl radicals formed at the anode surface from water oxidation. The comparative study of both systems shows the performance of the BDD anode compared to PbO2, explained by the large amounts of hydroxyl radicals generated effective at BDD anode and its synthesis characteristics. Using LC/MS analysis, it was possible to determine hydroxytyrosol, as major phenolic compounds, in table olive processing wastewater and its concentration reach 890 mg L-1. A possible reaction mechanism oxidation for hydroxytyrosol was proposed. The kinetics decays for hydroxytyrosol degradation on PbO2 anode follows a pseudo-first order reaction with a rate constant 0.9 h-1 for japp value 20 mA cm-2.
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Affiliation(s)
- Boutheina Gargouri
- Laboratoire d'Electrochimie et Environnement, Ecole Nationale d'Ingénieurs de Sfax, Université de Sfax, BP «1173», 3038, Sfax, Tunisia
| | - Olfa Dridi Gargouri
- Laboratoire d'Electrochimie et Environnement, Ecole Nationale d'Ingénieurs de Sfax, Université de Sfax, BP «1173», 3038, Sfax, Tunisia
| | - Ibtihel Khmakhem
- Laboratoire d'Electrochimie et Environnement, Ecole Nationale d'Ingénieurs de Sfax, Université de Sfax, BP «1173», 3038, Sfax, Tunisia; Laboratoire d'Analyse, Valorisation et Sécurité des Aliments, Ecole Nationale d'Ingénieurs de Sfax (ENIS), Université de Sfax, BP 1175, 3038, Sfax, Tunisia
| | - Sonda Ammar
- Laboratoire d'Electrochimie et Environnement, Ecole Nationale d'Ingénieurs de Sfax, Université de Sfax, BP «1173», 3038, Sfax, Tunisia
| | - Ridha Abdelhèdi
- Laboratoire d'Electrochimie et Environnement, Ecole Nationale d'Ingénieurs de Sfax, Université de Sfax, BP «1173», 3038, Sfax, Tunisia
| | - Mohamed Bouaziz
- Laboratoire d'Electrochimie et Environnement, Ecole Nationale d'Ingénieurs de Sfax, Université de Sfax, BP «1173», 3038, Sfax, Tunisia.
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