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Yusuf A, Amusa HK, Eniola JO, Giwa A, Pikuda O, Dindi A, Bilad MR. Hazardous and emerging contaminants removal from water by plasma-based treatment: a review of recent advances. CHEMICAL ENGINEERING JOURNAL ADVANCES 2023. [DOI: 10.1016/j.ceja.2023.100443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
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Akbarzadeh A, Ghomi HR, Rafiee M, Hosseini O, Jahangiri-Rad M. Clindamycin removal from aqueous solution by non-thermal air plasma treatment: performance, degradation pathway and ensuing antimicrobial activity. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2022; 86:2593-2610. [PMID: 36450675 DOI: 10.2166/wst.2022.325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The present study set out to investigate clindamycin (CLN) removal from aqueous solution using non-thermal plasma (NTP) under atmospheric air conditions and to address the effects of some variables including pH, initial concentration of CLN, and working voltage on CLN degradation. The result showed that the NTP system exhibited excellent degradation rate and mineralization efficiency on CLN in 15 min under neutral conditions, which exceeded 90 and 45%, respectively, demonstrating its conversion to other organic by-products. Furthermore, CLN degradation was largely dependent upon the initial pH of solution, applied voltage, and reaction time. Specifically, under acidic conditions (pH = 3), working voltage of 24 kV and after 15 min of reaction, almost 100% of CLN was degraded. NTP-initiated CLN degradation products through LC-MS/MS analysis, determined within 10 min of reaction, inferred that the complex structure of CLN has undergone deterioration by active radical species which subsequently generated small molecular organic compounds. Chemical processes involved in CLN degradation were found to be demethylation, desulfonylation, dechlorination, hydroxylation and deamination. Lastly, antimicrobial susceptibility tests revealed that the activity of CLN was reduced following NTP treatment, which is also in good agreement with the minimum inhibitory concentration (MIC) values obtained from microdilution analyses.
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Affiliation(s)
- Abbas Akbarzadeh
- Water and Wastewater Research Center (WWRC), Water Research Institute, Tehran, Iran
| | - Hamid Reza Ghomi
- Laser and Plasma Research Institute, Shahid Beheshti University, Evin, Tehran, Iran
| | - Mohammad Rafiee
- Department of Environmental Health Engineering, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Air Quality and Climate Change Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Omid Hosseini
- Central Research Laboratories, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mahsa Jahangiri-Rad
- Water Purification Research Center, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran E-mail:
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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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Azizi D, Arif A, Blair D, Dionne J, Filion Y, Ouarda Y, Pazmino AG, Pulicharla R, Rilstone V, Tiwari B, Vignale L, Brar SK, Champagne P, Drogui P, Langlois VS, Blais JF. A comprehensive review on current technologies for removal of endocrine disrupting chemicals from wastewaters. ENVIRONMENTAL RESEARCH 2022; 207:112196. [PMID: 34634314 DOI: 10.1016/j.envres.2021.112196] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 09/22/2021] [Accepted: 10/06/2021] [Indexed: 05/25/2023]
Abstract
In the recent years, endocrine disrupting compounds (EDCs) has received increasing attention due to their significant toxic effects on human beings and wildlife by affecting their endocrine systems. As an important group of emerging pollutant, EDCs have been detected in various aquatic environments, including surface waters, groundwater, wastewater, runoff, and landfill leachates. Their removal from water resources has also been an emerging concern considering growing population as well as reducing access to fresh water resources. EDC removal from wastewaters is highly dependent on physicochemical properties of the given EDCs present in each wastewater types as well as various aquatic environments. Due to chemical, physical and physicochemical diversities in these parameters, variety of technologies consisting of physical, biological, electrochemical, and chemical processes have been developed for their removal. This review highlights that the effectiveness of EDC removal is highly dependent of selecting the appropriate technology; which decision is made upon a full wastewater chemical characterization. This review aims to provide a comprehensive perspective about all the current technologies used for EDCs removal from various aquatic matrices along with rising challenges such as the antimicrobial resistance gene transfer during EDC treatment.
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Affiliation(s)
- Dariush Azizi
- Centre Eau, Terre et Environnement (ETE), Institut National de la Recherche Scientifique (INRS), Université du Québec, 490 Rue de la Couronne, Québec, QC, G1K 9A9, Canada
| | - Ayman Arif
- Beaty Water Research Centre, Department of Civil Engineering, Union Street, Queen's University, Kingston, K7L 3Z6, Canada
| | - David Blair
- Beaty Water Research Centre, Department of Civil Engineering, Union Street, Queen's University, Kingston, K7L 3Z6, Canada
| | - Justine Dionne
- Centre Eau, Terre et Environnement (ETE), Institut National de la Recherche Scientifique (INRS), Université du Québec, 490 Rue de la Couronne, Québec, QC, G1K 9A9, Canada
| | - Yves Filion
- Beaty Water Research Centre, Department of Civil Engineering, Union Street, Queen's University, Kingston, K7L 3Z6, Canada
| | - Yassine Ouarda
- Centre Eau, Terre et Environnement (ETE), Institut National de la Recherche Scientifique (INRS), Université du Québec, 490 Rue de la Couronne, Québec, QC, G1K 9A9, Canada
| | - Ana Gisell Pazmino
- Centre Eau, Terre et Environnement (ETE), Institut National de la Recherche Scientifique (INRS), Université du Québec, 490 Rue de la Couronne, Québec, QC, G1K 9A9, Canada
| | - Rama Pulicharla
- Department of Civil Engineering, Lassonde School of Engineering, York University, Canada
| | - Victoria Rilstone
- Beaty Water Research Centre, Department of Civil Engineering, Union Street, Queen's University, Kingston, K7L 3Z6, Canada
| | - Bhagyashree Tiwari
- Centre Eau, Terre et Environnement (ETE), Institut National de la Recherche Scientifique (INRS), Université du Québec, 490 Rue de la Couronne, Québec, QC, G1K 9A9, Canada
| | - Leah Vignale
- Beaty Water Research Centre, Department of Civil Engineering, Union Street, Queen's University, Kingston, K7L 3Z6, Canada
| | - Satinder Kaur Brar
- Department of Civil Engineering, Lassonde School of Engineering, York University, Canada
| | - Pascale Champagne
- Centre Eau, Terre et Environnement (ETE), Institut National de la Recherche Scientifique (INRS), Université du Québec, 490 Rue de la Couronne, Québec, QC, G1K 9A9, Canada; Beaty Water Research Centre, Department of Civil Engineering, Union Street, Queen's University, Kingston, K7L 3Z6, Canada
| | - Patrick Drogui
- Centre Eau, Terre et Environnement (ETE), Institut National de la Recherche Scientifique (INRS), Université du Québec, 490 Rue de la Couronne, Québec, QC, G1K 9A9, Canada
| | - Valerie S Langlois
- Centre Eau, Terre et Environnement (ETE), Institut National de la Recherche Scientifique (INRS), Université du Québec, 490 Rue de la Couronne, Québec, QC, G1K 9A9, Canada
| | - Jean-François Blais
- Centre Eau, Terre et Environnement (ETE), Institut National de la Recherche Scientifique (INRS), Université du Québec, 490 Rue de la Couronne, Québec, QC, G1K 9A9, Canada.
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Magureanu M, Bilea F, Bradu C, Hong D. A review on non-thermal plasma treatment of water contaminated with antibiotics. JOURNAL OF HAZARDOUS MATERIALS 2021; 417:125481. [PMID: 33992019 DOI: 10.1016/j.jhazmat.2021.125481] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 02/05/2021] [Accepted: 02/19/2021] [Indexed: 06/12/2023]
Abstract
Large amounts of antibiotics are produced and consumed worldwide, while wastewater treatment is still rather inefficient, leading to considerable water contamination. Concentrations of antibiotics in the environment are often sufficiently high to exert a selective pressure on bacteria of clinical importance that increases the prevalence of resistance. Since the drastic reduction in the use of antibiotics is not envisaged, efforts to reduce their input into the environment by improving treatment of contaminated wastewater is essential to limit uncontrollable spread of antibiotic resistance. This paper reviews recent progress on the use of non-thermal plasma for the degradation of antibiotics in water. The target compounds removal, the energy efficiency and the mineralization are analyzed as a function of discharge configuration and the most important experimental parameters. Various ways to improve the plasma process efficiency are addressed. Based on the identified reaction intermediates, degradation pathways are proposed for various classes of antibiotics and the degradation mechanisms of these chemicals under plasma conditions are discussed.
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Affiliation(s)
- M Magureanu
- National Institute for Lasers, Plasma and Radiation Physics, Department of Plasma Physics and, Nuclear Fusion, Atomistilor Str. 409, P.O. Box MG-36, Magurele, 077125 Bucharest, Romania.
| | - F Bilea
- National Institute for Lasers, Plasma and Radiation Physics, Department of Plasma Physics and, Nuclear Fusion, Atomistilor Str. 409, P.O. Box MG-36, Magurele, 077125 Bucharest, Romania; University of Bucharest, Faculty of Chemistry, Department of Analytical Chemistry, Panduri Avenue 90, 050663 Bucharest, Romania
| | - C Bradu
- University of Bucharest, Faculty of Biology, Department of Systems Ecology and Sustainability, Splaiul Independentei 91-95, 050095 Bucharest, Romania
| | - D Hong
- GREMI, UMR 7344, Université d'Orléans, CNRS, Orléans, France
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Massima Mouele ES, Tijani JO, Badmus KO, Pereao O, Babajide O, Zhang C, Shao T, Sosnin E, Tarasenko V, Fatoba OO, Laatikainen K, Petrik LF. Removal of Pharmaceutical Residues from Water and Wastewater Using Dielectric Barrier Discharge Methods-A Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:1683. [PMID: 33578670 PMCID: PMC7916394 DOI: 10.3390/ijerph18041683] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 12/31/2020] [Accepted: 01/12/2021] [Indexed: 12/19/2022]
Abstract
Persistent pharmaceutical pollutants (PPPs) have been identified as potential endocrine disruptors that mimic growth hormones when consumed at nanogram per litre to microgram per litre concentrations. Their occurrence in potable water remains a great threat to human health. Different conventional technologies developed for their removal from wastewater have failed to achieve complete mineralisation. Advanced oxidation technologies such as dielectric barrier discharges (DBDs) based on free radical mechanisms have been identified to completely decompose PPPs. Due to the existence of pharmaceuticals as mixtures in wastewater and the recalcitrance of their degradation intermediate by-products, no single advanced oxidation technology has been able to eliminate pharmaceutical xenobiotics. This review paper provides an update on the sources, occurrence, and types of pharmaceuticals in wastewater by emphasising different DBD configurations previously and currently utilised for pharmaceuticals degradation under different experimental conditions. The performance of the DBD geometries was evaluated considering various factors including treatment time, initial concentration, half-life time, degradation efficiency and the energy yield (G50) required to degrade half of the pollutant concentration. The review showed that the efficacy of the DBD systems on the removal of pharmaceutical compounds depends not only on these parameters but also on the nature/type of the pollutant.
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Affiliation(s)
- Emile S. Massima Mouele
- Environmental Nano Science Research Group, Department of Chemistry, University of the Western Cape, Bellville, Cape Town 7535, South Africa; (J.O.T.); (K.O.B.); (O.P.); (O.B.); (O.O.F.)
- Department of Separation Science, Lappeenranta-Lahti University of Technology LUT, P.O. Box 20, FI-53851 Lappeenranta, Finland;
| | - Jimoh O. Tijani
- Environmental Nano Science Research Group, Department of Chemistry, University of the Western Cape, Bellville, Cape Town 7535, South Africa; (J.O.T.); (K.O.B.); (O.P.); (O.B.); (O.O.F.)
- Department of Chemistry, Federal University of Technology, PMB 65, P.O. Box 920 Minna, Niger State 920001, Nigeria
| | - Kassim O. Badmus
- Environmental Nano Science Research Group, Department of Chemistry, University of the Western Cape, Bellville, Cape Town 7535, South Africa; (J.O.T.); (K.O.B.); (O.P.); (O.B.); (O.O.F.)
| | - Omoniyi Pereao
- Environmental Nano Science Research Group, Department of Chemistry, University of the Western Cape, Bellville, Cape Town 7535, South Africa; (J.O.T.); (K.O.B.); (O.P.); (O.B.); (O.O.F.)
| | - Omotola Babajide
- Environmental Nano Science Research Group, Department of Chemistry, University of the Western Cape, Bellville, Cape Town 7535, South Africa; (J.O.T.); (K.O.B.); (O.P.); (O.B.); (O.O.F.)
- Department of Mechanical Engineering, Cape Peninsula University of Technology, P.O. Box 1906, Bellville 7535, South Africa
| | - Cheng Zhang
- Beijing International S&T Cooperation Base for Plasma Science, Energy Conversion, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, China; (C.Z.); (T.S.)
| | - Tao Shao
- Beijing International S&T Cooperation Base for Plasma Science, Energy Conversion, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, China; (C.Z.); (T.S.)
| | - Eduard Sosnin
- Institute of High Current Electronics, Russian Academy of Sciences, 634055 Tomsk, Russia; (E.S.); (V.T.)
| | - Victor Tarasenko
- Institute of High Current Electronics, Russian Academy of Sciences, 634055 Tomsk, Russia; (E.S.); (V.T.)
| | - Ojo O. Fatoba
- Environmental Nano Science Research Group, Department of Chemistry, University of the Western Cape, Bellville, Cape Town 7535, South Africa; (J.O.T.); (K.O.B.); (O.P.); (O.B.); (O.O.F.)
| | - Katri Laatikainen
- Department of Separation Science, Lappeenranta-Lahti University of Technology LUT, P.O. Box 20, FI-53851 Lappeenranta, Finland;
| | - Leslie F. Petrik
- Environmental Nano Science Research Group, Department of Chemistry, University of the Western Cape, Bellville, Cape Town 7535, South Africa; (J.O.T.); (K.O.B.); (O.P.); (O.B.); (O.O.F.)
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Komarov S, Yamamoto T, Fang Y, Hariu D. Combined effect of acoustic cavitation and pulsed discharge plasma on wastewater treatment efficiency in a circulating reactor: A case study of Rhodamine B. ULTRASONICS SONOCHEMISTRY 2020; 68:105236. [PMID: 32615405 DOI: 10.1016/j.ultsonch.2020.105236] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 06/03/2020] [Accepted: 06/20/2020] [Indexed: 06/11/2023]
Abstract
The present study investigates the wastewater treatment performance of an acoustic cavitation assisted plasma (ACAP) process in a circulating reactor using Rhodamine B (RhB) as a model water pollution. The concept of this process was proposed by the authors recently for a batch type rector. The measurements revealed that combining the ultrasound irradiation with pulsed discharge plasma allows the RhB degradation efficiency to be drastically increased as compared with the plasma-alone case. This effect is especially significant at higher values of solution electrical conductivity examined in a range of 20 ~ 400 μS/cm. Acidic conditions and larger flow rates of solution were found to be favorable for the degradation efficiency. The effect of flow rate was also analyzed through numerical simulation. The results indicated that the mass transfer of RhB to the plasma-cavitation zone is one of the controlling parameters influencing the degradation performance. Behavior of bubbles and pulse discharge frequency were examined using a high-speed video camera. Relatively large bubbles were found to favor the plasma pulse generation and propagation when move near the high-voltage electrode. On the whole, the results of this study suggest that the ACAP process has the potential to synergistically extend the application area of underwater plasma in both research and industry.
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Affiliation(s)
- Sergey Komarov
- Department of Frontier Science for Advanced Environment, Tohoku University, 980-8579, Japan.
| | - Takuya Yamamoto
- Department of Frontier Science for Advanced Environment, Tohoku University, 980-8579, Japan
| | - Yu Fang
- Department of Frontier Science for Advanced Environment, Tohoku University, 980-8579, Japan
| | - Daiki Hariu
- Department of Frontier Science for Advanced Environment, Tohoku University, 980-8579, Japan
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Sang W, Cui J, Mei L, Zhang Q, Li Y, Li D, Zhang W, Li Z. Degradation of liquid phase N,N-dimethylformamide by dielectric barrier discharge plasma: Mechanism and degradation pathways. CHEMOSPHERE 2019; 236:124401. [PMID: 31344625 DOI: 10.1016/j.chemosphere.2019.124401] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 06/30/2019] [Accepted: 07/17/2019] [Indexed: 06/10/2023]
Abstract
The degradation of liquid phase N,N-dimethylformamide (DMF) using the dielectric barrier discharge (DBD) plasma was studied in the present study. The results showed that 1000 mg L-1 DMF could be degraded by DBD plasma under different input power, treatment time and initial pH values of aqueous solution. After 40 min with DBD plasma discharge, 52.2% degradation efficiency was achieved at DMF concentration of 1000 mg L-1 with an input power of 16.19 W under initial pH of 11.14 in aqueous solution, and the energy efficiency of the system was 13.2 mg kJ-1. The removal efficiency decreased with the presence of radical scavenger, manifesting that •OH plays a critical role in the degradation process. The value of TOC in DMF aqueous solution decreased from 790 mg L-1 to 507 mg L-1 in 40 min, which indicated that DBD plasma has the ability to mineralize a portion of DMF in liquid directly. Additionally, the analysis of FTIR, HPLC and the small molecular organic compounds before and after the DBD plasma degradation indicated that the intermediates of DMF in degradation process were N-methylformamide, methanol, formaldehyde and formic acid, which were finally mineralized into ammonia nitrogen, CO2 and H2O. Moreover, the possible degradation mechanism and pathways were proposed.
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Affiliation(s)
- Wenjiao Sang
- School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan, 430070, China.
| | - Jiaqi Cui
- School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan, 430070, China
| | - Longjie Mei
- School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan, 430070, China
| | - Qian Zhang
- School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan, 430070, China
| | - Yunyang Li
- School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan, 430070, China
| | - Danyi Li
- School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan, 430070, China
| | - Wanjun Zhang
- Central and Southern China Municipal Engineering Design & Research Institute Co. Ltd., Wuhan, 430010, China
| | - Zhixuan Li
- School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan, 430070, China
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Iervolino G, Vaiano V, Palma V. Enhanced removal of water pollutants by dielectric barrier discharge non-thermal plasma reactor. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.01.007] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Sources and impacts of pharmaceutical components in wastewater and its treatment process: A review. KOREAN J CHEM ENG 2017. [DOI: 10.1007/s11814-017-0255-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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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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Ajo P, Krzymyk E, Preis S, Kornev I, Kronberg L, Louhi-Kultanen M. Pulsed corona discharge oxidation of aqueous carbamazepine micropollutant. ENVIRONMENTAL TECHNOLOGY 2016; 37:2072-2081. [PMID: 26758812 DOI: 10.1080/09593330.2016.1141236] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The anti-epileptic drug carbamazepine (CBZ) receives growing attention due to slow biodegradation and inherent accumulation in the aquatic environment. The application of a gas-phase pulsed corona discharge (PCD) was investigated to remove CBZ from synthetic solutions and spiked wastewater effluent from a municipal wastewater treatment facility. The treated water was showered between high voltage (HV) wires and grounded plate electrodes, to which ultra-short HV pulses were applied. CBZ was readily oxidized and 1-(2-benzaldehyde)-4-hydroquinazoline-2-one (BQM) and 1-(2-benzaldehyde)-4-hydro-quinazoline-2,4-dione (BQD) were identified as the most abundant primary transformation products, which, contrary to CBZ ozonation data available in the literature, were further easily oxidized with PCD: BQM and BQD attributed to only a minor portion of the target compound oxidized. In concentrations commonly found in wastewater treatment plant effluents (around 5 µg L(-1)), up to 97% reduction in CBZ concentration was achieved at mere 0.3 kW h m(-3) energy consumption, and over 99.9% was removed at 1 kW h m(-3). The PCD application proved to be efficient in the removal of both the parent substance and its known transformation products, even with the competing reactions in the complex composition of wastewater.
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Affiliation(s)
- Petri Ajo
- a Thermal Unit Operations/Separation Technology , School of Engineering Science, Lappeenranta University of Technology , Lappeenranta , Finland
| | - Ewelina Krzymyk
- b Laboratory of Organic Chemistry , Åbo Akademi University , Turku , Finland
| | - Sergei Preis
- c School of Environment and Energy , South China University of Technology, Guangzhou Higher Education Mega Center , Panyu District, Guangzhou , Guangdong Province , People's Republic of China
| | - Iakov Kornev
- d Institute of Non-Destructive Testing, Tomsk Polytechnic University , Tomsk , Russia
| | - Leif Kronberg
- b Laboratory of Organic Chemistry , Åbo Akademi University , Turku , Finland
| | - Marjatta Louhi-Kultanen
- a Thermal Unit Operations/Separation Technology , School of Engineering Science, Lappeenranta University of Technology , Lappeenranta , Finland
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Krishna S, Maslani A, Izdebski T, Horakova M, Klementova S, Spatenka P. Degradation of Verapamil hydrochloride in water by gliding arc discharge. CHEMOSPHERE 2016; 152:47-54. [PMID: 26953731 DOI: 10.1016/j.chemosphere.2016.02.083] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Revised: 02/18/2016] [Accepted: 02/19/2016] [Indexed: 06/05/2023]
Abstract
This study investigated the influence of gliding arc plasma discharge on the degradation of Verapamil hydrochloride in water. The plasma discharge was characterized by means of optical emission spectroscopy. Spectra of various atomic and molecular species were observed. Aqueous solution of Verapamil hydrochloride was exposed to gliding arc discharge operated in continuous discharge at atmospheric pressure and room temperature. The identification of Verapamil, the degradation mechanisms of Verapamil and its transformation products were performed using liquid chromatography - mass spectrometry (HPLC-MS). Experimental results indicate that the atmospheric pressure gliding arc plasma treatment has noticeable effects on Verapamil with satisfactory degradation efficiency. Plausible mechanisms of the degradation were discussed.
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Affiliation(s)
- Syam Krishna
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, 389 25 Vodnany, Czech Republic.
| | - Alan Maslani
- Institute of Plasma Physics AS CR v.v.i., Za Slovankou 3, 18200 Prague, Czech Republic
| | - Tomasz Izdebski
- Szewalski Institute of Fluid-Flow Machinery, Polish Academy of Sciences, Fiszera 14, 80-952 Gdansk, Poland
| | - Marta Horakova
- Czech Technical University in Prague, Department of Materials Engineering, Faculty of Mechanical Engineering, Karlovo nam. 13, 121 35 Prague, Czech Republic
| | - Sarka Klementova
- University of South Bohemia, Faculty of Science, Ceske Budejovice, Czech Republic
| | - Petr Spatenka
- Czech Technical University in Prague, Department of Materials Engineering, Faculty of Mechanical Engineering, Karlovo nam. 13, 121 35 Prague, Czech Republic
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14
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Wen Y, Yi J, Zhao S, Jiang S, Chi Y, Liu K. Non-thermal plasma treatment of Radix aconiti wastewater generated by traditional Chinese medicine processing. J Environ Sci (China) 2016; 44:99-108. [PMID: 27266306 DOI: 10.1016/j.jes.2015.10.028] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Revised: 10/28/2015] [Accepted: 10/30/2015] [Indexed: 06/06/2023]
Abstract
The wastewater effluent from Radix aconiti processing, an important step in the production processes of traditional Chinese medicine (TCM), is a type of toxic wastewater and difficult to treat. Plasma oxidation methods have emerged as feasible techniques for effective decomposition of toxic organic pollutants. This study examined the performance of a plasma reactor operated in a dielectric barrier discharge (DBD) to degrade the effluent from R. aconiti processing. The effects of treatment time, discharge voltage, initial pH value and the feeding gas for the reactor on the degradation of this TCM wastewater were investigated. A bacterium bioluminescence assay was adopted in this study to test the toxicity of the TCM wastewater after non-thermal plasma treatment. The degradation ratio of the main toxic component was 87.77% after 60min treatment with oxygen used as feed gas and it was 99.59% when the initial pH value was 8.0. High discharge voltage and alkaline solution environment were beneficial for improving the degradation ratio. The treatment process was found to be capable of reducing the toxicity of the wastewater to a low level or even render it non-toxic. These experimental results suggested that the DBD plasma method may be a competitive technology for primary decomposition of biologically undegradable toxic organic pollutants in TCM wastewater.
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Affiliation(s)
- Yiyong Wen
- Institute for Electric Light Sources, Fudan University, Shanghai 200433, China.
| | - Jianping Yi
- Institute of Tong Ren Tang, Beijing 100079, China
| | - Shen Zhao
- Institute for Electric Light Sources, Fudan University, Shanghai 200433, China
| | - Song Jiang
- Department of Electrical Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Yuming Chi
- Institute of Tong Ren Tang, Beijing 100079, China
| | - Kefu Liu
- Institute for Electric Light Sources, Fudan University, Shanghai 200433, China.
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15
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Li S, Xu Y, Wang X, Guo Y, Mu Q. Catalytic degradation of 4-chlorophenol with La/TiO2 in a dielectric barrier discharge system. RSC Adv 2016. [DOI: 10.1039/c6ra02807a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This is the image of the possible degradation pathway of 4-chlorophenol and structures of the intermediates.
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Affiliation(s)
- Shanping Li
- School of Environmental Science and Engineering
- Shandong University
- Jinan
- China
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse
| | - Yanjia Xu
- School of Environmental Science and Engineering
- Shandong University
- Jinan
- China
| | - Xiaoping Wang
- School of Environmental Science and Engineering
- Shandong University
- Jinan
- China
| | - Yongbo Guo
- School of Environmental Science and Engineering
- Shandong University
- Jinan
- China
| | - Qinglin Mu
- School of Environmental Science and Engineering
- Shandong University
- Jinan
- China
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16
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Magureanu M, Mandache NB, Parvulescu VI. Degradation of pharmaceutical compounds in water by non-thermal plasma treatment. WATER RESEARCH 2015; 81:124-136. [PMID: 26057260 DOI: 10.1016/j.watres.2015.05.037] [Citation(s) in RCA: 120] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Revised: 05/08/2015] [Accepted: 05/19/2015] [Indexed: 06/04/2023]
Abstract
Pharmaceutical compounds became an important class of water pollutants due to their increasing consumption over the last years, as well as due to their persistence in the environment. Since conventional waste water treatment plants are unable to remove certain non-biodegradable pharmaceuticals, advanced oxidation processes was extensively studied for this purpose. Among them, non-thermal plasma was also recently investigated and promising results were obtained. This work reviews the recent research on the oxidative degradation of pharmaceuticals using non-thermal plasma in contact with liquid. As target compounds, several drugs belonging to different therapeutic groups were selected: antibiotics, anticonvulsants, anxiolytics, lipid regulators, vasodilatators, contrast media, antihypertensives and analgesics. It was found that these compounds were removed from water relatively fast, partly degraded, and partly even mineralized. In order to ensure the effluent is environmentally safe it is important to identify the degradation intermediates and to follow their evolution during treatment, which requires complex chemical analysis of the solutions. Based on this analysis, degradation pathways of the investigated pharmaceuticals under plasma conditions were suggested. After sufficient plasma treatment the final organic by-products present in the solutions were mainly small molecules in an advanced oxidation state.
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Affiliation(s)
- Monica Magureanu
- National Institute for Lasers, Plasma and Radiation Physics, Department of Plasma Physics and Nuclear Fusion, Atomistilor Str. 409, P.O. Box MG-36, 077125 Magurele-Bucharest, Romania.
| | - Nicolae Bogdan Mandache
- National Institute for Lasers, Plasma and Radiation Physics, Department of Plasma Physics and Nuclear Fusion, Atomistilor Str. 409, P.O. Box MG-36, 077125 Magurele-Bucharest, Romania
| | - Vasile I Parvulescu
- University of Bucharest, Faculty of Chemistry, Department of Organic Chemistry, Biochemistry and Catalysis, Bd. Regina Elisabeta 4-12, 030016 Bucharest, Romania
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17
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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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18
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19
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Dobrin D, Magureanu M, Bradu C, Mandache NB, Ionita P, Parvulescu VI. Degradation of methylparaben in water by corona plasma coupled with ozonation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2014; 21:12190-12197. [PMID: 24801291 DOI: 10.1007/s11356-014-2964-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Accepted: 04/21/2014] [Indexed: 06/03/2023]
Abstract
The degradation of methylparaben (MeP) in water was investigated using a pulsed corona discharge generated in oxygen, above the liquid. A comparison was made between results obtained in semi-batch corona (SBC) configuration (stationary solution, continuous gas flow) and results obtained in a semi-batch corona with recirculation combined with ozonation (SBCR + O3), where the liquid is continuously circulated between a solution reservoir and the plasma reactor and the effluent gas containing ozone is bubbled through the solution in the reservoir. It was found that MeP was completely degraded after 10-15 min of treatment in both configurations. Oxidation by ozone alone, in the absence of plasma, was a slower process. The energy efficiency for MeP removal (Y MeP) and for mineralization (Y TOC) was significantly higher in the SBCR + O3 configuration (Y MeP = 7.1 g/kWh at 90 % MeP removal and Y TOC = 0.41 g/kWh at 50 % total organic carbon (TOC) removal) than in the SBC configuration (Y MeP = 0.6 g/kWh at 90 % MeP removal and Y TOC = 0.11 g/kWh at 50 % TOC removal).
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Affiliation(s)
- D Dobrin
- Department of Plasma Physics and Nuclear Fusion, National Institute for Lasers, Plasma and Radiation Physics, Atomistilor Str. 409, Box MG-36, 077125, Magurele-Bucharest, Romania
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20
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Hijosa-Valsero M, Molina R, Bayona JM. Assessment of a dielectric barrier discharge plasma reactor at atmospheric pressure for the removal of bisphenol A and tributyltin. ENVIRONMENTAL TECHNOLOGY 2014; 35:1418-1426. [PMID: 24701940 DOI: 10.1080/09593330.2013.869624] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The ability of a laboratory-scale dielectric barrier discharge (DBD) nonthermal plasma reactor at atmospheric pressure was assessed for the removal of bisphenol A (1 mg L(-1)) and tributyltin (10 mg L(-1)) from aqueous solutions. The elimination of both the compounds followed an exponential decay equation, and a first-order degradation kinetics was proposed for them (k = 0.662 min(-1) for bisphenol A and k = 0.800 min(-1) for tributyltin), reaching in both cases about 96% removal after 5-min treatment. Accordingly, plasma DBD reactors could be used as alternative advanced oxidation technologies for the removal of some persistent and toxic pollutants from water and wastewater, although further research should be performed to evaluate the effluent toxicity.
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21
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Rong SP, Sun YB, Zhao ZH. Degradation of sulfadiazine antibiotics by water falling film dielectric barrier discharge. CHINESE CHEM LETT 2014. [DOI: 10.1016/j.cclet.2013.11.003] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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22
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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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23
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Wang Z, Huang Q, Yu Y, Wang C, Ou W, Peng X. Stereoisomeric profiling of pharmaceuticals ibuprofen and iopromide in wastewater and river water, China. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2013; 35:683-691. [PMID: 23801342 DOI: 10.1007/s10653-013-9551-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2012] [Accepted: 04/02/2013] [Indexed: 06/02/2023]
Abstract
Stereoisomeric compositions can provide insights into sources, fate, and ecological risks of contaminants in the environment. In this study, stereoisomeric profiles of ibuprofen and iopromide were investigated in wastewater and receiving surface water of the Pearl River Delta, south China. The enantiomeric fraction (EF) of ibuprofen was 0.108-0.188 and 0.480, whereas the isomer ratio (IR) of iopromide was 1.426-1.673 and 1.737-1.898 in the influent and final effluent, respectively, suggesting stereoselective degradation occurred for both pharmaceuticals during wastewater treatment. Ibuprofen showed enantioselective degradation in the anaerobic, anoxic, and aerobic conditions, whereas iopromide displayed isomer-selective degradation only under the aerobic condition. In the river waters, the EF of ibuprofen was 0.130-0.327 and the IR of iopromide was 1.500-2.531. The results suggested that pharmaceuticals in the mainstream Pearl River were mainly from discharge of treated wastewater, whereas in the tributary rivers and urban canals, direct discharge of untreated wastewater represented a significant contribution. The IR of iopromide can be an applicable and efficient tracer for wastewater discharge in the environment.
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Affiliation(s)
- Zhifang Wang
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, China
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24
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Liu Y, Hu J, Xu B, He J, Gao P, Liu K, Xue G, Ognier S. Isolation and identification of an iopromide-degrading strain and its application in an A2/O system. BIORESOURCE TECHNOLOGY 2013; 134:36-42. [PMID: 23500557 DOI: 10.1016/j.biortech.2013.02.043] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2013] [Revised: 02/15/2013] [Accepted: 02/16/2013] [Indexed: 06/01/2023]
Abstract
An iopromide (IOPr)-degrading bacterium was isolated from activated sludge of a wastewater treatment plant in Shanghai. Based on its morphology, physiological-biochemical characteristics and a phylogenetic analysis of its 16S rRNA sequence, the bacterium was identified and named as Pseudomonas sp. I-24. The optimum condition for degrading IOPr was at 30°C and pH 7.0. After 5 days, strain I-24 could degrade 30 mg/L IOPr by 99% in a basal salts medium with a 5% (V/V) inoculum and 200 mg/L starch as the primary substrate. When applied to an Anaerobic-Anoxic/Aerobic (A2/O) process, with the coexistence of other bacteria, the strain I-24 got lower (61.3%) IOPr removal, but in two A2/O systems (with and without I-24 inoculation), the CODcr removal were both approximately 95%. The trial dosed with strain I-24 showed better IOPr removal than the un-dosed one. I-24 sustained its abundance in the A2/O system during the experiment.
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Affiliation(s)
- Yanan Liu
- School of Environmental Science and Engineering, Dong Hua University, Shanghai 201620, China.
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25
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Hijosa-Valsero M, Molina R, Schikora H, Müller M, Bayona JM. Removal of cyanide from water by means of plasma discharge technology. WATER RESEARCH 2013; 47:1701-1707. [PMID: 23332789 DOI: 10.1016/j.watres.2013.01.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2012] [Revised: 12/27/2012] [Accepted: 01/01/2013] [Indexed: 06/01/2023]
Abstract
Two different nonthermal plasma reactors at atmospheric pressure were assessed for the first time for cyanide removal (1 mg L(-1)) from aqueous solutions (0.025 M NaHCO(3)/NaOH buffer, pH 11) at laboratory scale. Both devices were dielectric barrier discharge (DBD) reactors; one of them was a conventional batch reactor (R1) and the other one was a coaxial thin falling water film reactor (R2). A first-order degradation kinetics was proposed for both experiments, obtaining k(R1) = 0.5553 min(-1) and k(R2) = 0.7482 min(-1). The coaxial reactor R2 yielded a removal of 99% within only 3 min. Energy efficiencies (G) were calculated, yielding 1.74 mg kW(-1) h(-1) for R1 and 127.9 mg kW(-1) h(-1) for R2. When the treatment was applied to industrial wastewaters, cyanide elimination was confirmed, although at a lower rate (above 92% removal in 90 min with R2). Therefore, plasma reactors could be a relevant alternative to established advanced oxidation techniques (UV, H(2)O(2), ozonation, etc.) for the removal of cyanide from wastewaters with low organic loads or even drinking waters.
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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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26
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Marotta E, Ceriani E, Schiorlin M, Ceretta C, Paradisi C. Comparison of the rates of phenol advanced oxidation in deionized and tap water within a dielectric barrier discharge reactor. WATER RESEARCH 2012; 46:6239-6246. [PMID: 23040562 DOI: 10.1016/j.watres.2012.08.022] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2012] [Revised: 08/13/2012] [Accepted: 08/15/2012] [Indexed: 06/01/2023]
Abstract
Electric non-thermalizing discharges provide promising novel means to induce oxidation of organic pollutants in water. The decomposition of phenol in solutions prepared with deionized (milliQ) and tap water was studied and compared in a Dielectric Barrier Discharge (DBD) reactor. Interestingly, a significant rate increase was found in tap with respect to milliQ water. Control experiments proved that this was not the effect of conductivity or of traces of iron or of residual active chlorine from the depuration process operated in the aqueducts of Italian cities. The same increase in efficiency as observed in tap water was instead obtained when phenol was treated in solutions containing bicarbonate anions in the same concentration as present in tap water, an effect attributed to buffering of the solution pH. The role of pH has been investigated thoroughly by measuring the process efficiency over a wide pH range, from 2 to 10, by using different buffer systems to probe reactivity at near neutral pH, the most relevant for drinking water applications, and by testing the effect of different buffer concentrations. These latter experiments failed to detect any significant kinetic effect attributable to the well known reactivity of bicarbonate as quencher of OH radicals.
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Affiliation(s)
- Ester Marotta
- Department of Chemical Sciences, Università di Padova, Padova, Italy.
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27
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Sirés I, Brillas E. Remediation of water pollution caused by pharmaceutical residues based on electrochemical separation and degradation technologies: a review. ENVIRONMENT INTERNATIONAL 2012; 40:212-229. [PMID: 21862133 DOI: 10.1016/j.envint.2011.07.012] [Citation(s) in RCA: 471] [Impact Index Per Article: 39.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2011] [Revised: 07/18/2011] [Accepted: 07/18/2011] [Indexed: 05/03/2023]
Abstract
In the last years, the decontamination and disinfection of waters by means of direct or integrated electrochemical processes are being considered as a very appealing alternative due to the significant improvement of the electrode materials and the coupling with low-cost renewable energy sources. Many electrochemical technologies are currently available for the remediation of waters contaminated by refractory organic pollutants such as pharmaceutical micropollutants, whose presence in the environment has become a matter of major concern. Recent reviews have focused on the removal of pharmaceutical residues upon the application of other important methods like ozonation and advanced oxidation processes. Here, we present an overview on the electrochemical methods devised for the treatment of pharmaceutical residues from both, synthetic solutions and real pharmaceutical wastewaters. Electrochemical separation technologies such as membrane technologies, electrocoagulation and internal micro-electrolysis, which only isolate the pollutants from water, are firstly introduced. The fundamentals and experimental set-ups involved in technologies that allow the degradation of pharmaceuticals, like anodic oxidation, electro-oxidation with active chlorine, electro-Fenton, photoelectro-Fenton and photoelectrocatalysis among others, are further discussed. Progress on the promising solar photoelectro-Fenton process devised and further developed in our laboratory is especially highlighted and documented. The abatement of total organic carbon or reduction of chemical oxygen demand from contaminated waters allows the comparison between the different methods and materials. The routes for the degradation of the some pharmaceuticals are also presented.
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Affiliation(s)
- Ignasi Sirés
- Laboratori d'Electroquímica dels Materials i del Medi Ambient, Departament de Química Física, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain.
| | - Enric Brillas
- Laboratori d'Electroquímica dels Materials i del Medi Ambient, Departament de Química Física, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
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28
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Brillas E, Sirés I. Electrochemical Remediation Technologies for Waters Contaminated by Pharmaceutical Residues. ENVIRONMENTAL CHEMISTRY FOR A SUSTAINABLE WORLD 2012. [DOI: 10.1007/978-94-007-2439-6_8] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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29
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Magureanu M, Piroi D, Mandache NB, David V, Medvedovici A, Bradu C, Parvulescu VI. Degradation of antibiotics in water by non-thermal plasma treatment. WATER RESEARCH 2011; 45:3407-3416. [PMID: 21514950 DOI: 10.1016/j.watres.2011.03.057] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2010] [Revised: 03/23/2011] [Accepted: 03/30/2011] [Indexed: 05/30/2023]
Abstract
The decomposition of three β-lactam antibiotics (amoxicillin, oxacillin and ampicillin) in aqueous solution was investigated using a dielectric barrier discharge (DBD) in coaxial configuration. Solutions of concentration 100 mg/L were made to flow as a film over the surface of the inner electrode of the plasma reactor, so the discharge was generated at the gas-liquid interface. The electrical discharge was operated in pulsed regime, at room temperature and atmospheric pressure, in oxygen. Amoxicillin was degraded after 10 min plasma treatment, while the other two antibiotics required about 30 min for decomposition. The evolution of the degradation process was continuously followed using liquid chromatography-mass spectrometry (LC-MS), total organic carbon (TOC) and chemical oxygen demand (COD) analyses.
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Affiliation(s)
- M Magureanu
- National Institute for Lasers, Plasma and Radiation Physics, Department for Plasma Physics and Nuclear Fusion, Atomistilor Str. 409, Magurele-Bucharest 077125, Romania.
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30
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Chan TW, Graham NJD, Chu W. Degradation of iopromide by combined UV irradiation and peroxydisulfate. JOURNAL OF HAZARDOUS MATERIALS 2010; 181:508-13. [PMID: 20561746 PMCID: PMC7116998 DOI: 10.1016/j.jhazmat.2010.05.043] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2009] [Revised: 05/10/2010] [Accepted: 05/11/2010] [Indexed: 05/08/2023]
Abstract
The aqueous degradation of iopromide, an iodinated X-ray contrast media (ICM) compound, by the combination of UV(254) irradiation and potassium peroxydisulfate (K(2)S(2)O(8)) has been studied in laboratory scale experiments. The influence of various parameters on the performance of the treatment process has been considered, namely the UV irradiation light intensity, the initial concentrations of iopromide and peroxydisulfate, and the initial solution pH. Iopromide degradation increased with UV light intensity and peroxydisulfate concentration, but decreased with initial pH. Under specific conditions complete removal of iopromide was achieved within 30 min, and near-complete mineralisation (loss of solution TOC) within 80 min. Degradation was believed to be caused by a combination of direct photolysis, sulphate radical attack, and, to a minor degree, direct oxidation by peroxydisulfate. Approximate values for the reaction rate constants have been determined and found to be equal to 1-2x10(4) M(-1) s(-1) for sulfate radicals, and 1-2 M(-2) s(-1) for S(2)O(8)(2-). Overall compound degradation was observed to follow first-order kinetics where the rate constant decreased with initial solution pH. During the reaction, the solution pH decreased as a consequence of sulfate radical scavenging.
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Affiliation(s)
- Ting W Chan
- Department of Civil and Structural Engineering, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
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31
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Magureanu M, Piroi D, Mandache NB, David V, Medvedovici A, Parvulescu VI. Degradation of pharmaceutical compound pentoxifylline in water by non-thermal plasma treatment. WATER RESEARCH 2010; 44:3445-3453. [PMID: 20398913 DOI: 10.1016/j.watres.2010.03.020] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2009] [Revised: 03/17/2010] [Accepted: 03/20/2010] [Indexed: 05/29/2023]
Abstract
The decomposition of a model pharmaceutical compound, pentoxifylline, in aqueous solution was investigated using a dielectric barrier discharge (DBD) in coaxial configuration, operated in pulsed regime, at atmospheric pressure and room temperature. The solution was made to flow as a film over the surface of the inner electrode of the plasma reactor, so the discharge was generated at the gas-liquid interface. Oxygen was introduced with a flow rate of 600sccm. After 60min plasma treatment 92.5% removal of pentoxifylline was achieved and the corresponding decomposition yield was 16g/kWh. It was found that pentoxifylline degradation depended on the initial concentration of the compound, being faster for lower concentrations. Faster decomposition of pentoxifylline could be also achieved by increasing the pulse repetition rate, and implicitly the power introduced in the discharge, however, this had little effect on the decomposition yield. The degradation products were investigated by liquid chromatography-mass spectrometry technique (LC-MS). The evolution of the intermediates during plasma treatment showed a fast increase in the first 30min, followed by a slower decrease, so that these products are almost completely removed after 120min treatment time.
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Affiliation(s)
- Monica Magureanu
- National Institute for Lasers, Plasma and Radiation Physics, Atomistilor Str. 409, POB MG 36, 077125 Bucharest-Magurele, Romania.
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32
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Länge R, Steger-Hartmann T, Borden SA, Pietsch H. Discussion by Reinhard Länge et al. on "Degradation of the endocrine disrupting chemicals (EDCs) carbamazepine, clofibric acid, and iopromide by corona discharge over water" by Krause et al. [Chemosphere 75(2) (2009) 163-168]. CHEMOSPHERE 2010; 78:631-634. [PMID: 19926112 DOI: 10.1016/j.chemosphere.2009.10.052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2009] [Accepted: 10/19/2009] [Indexed: 05/28/2023]
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Chang HS, Choo KH, Lee B, Choi SJ. The methods of identification, analysis, and removal of endocrine disrupting compounds (EDCs) in water. JOURNAL OF HAZARDOUS MATERIALS 2009; 172:1-12. [PMID: 19632774 DOI: 10.1016/j.jhazmat.2009.06.135] [Citation(s) in RCA: 131] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2008] [Revised: 06/23/2009] [Accepted: 06/24/2009] [Indexed: 05/28/2023]
Abstract
The information regarding endocrine disrupting compounds (EDCs) was reviewed, including the definition and characteristics, the recent research trends concerning identification and analytical methods, and the applicable removal processes. EDCs include various types of natural and synthetic chemical compounds presenting the mimicking or inhibition of the reproductive action of the endocrine system in animals and humans. The ubiquitous presence with trace level concentrations and the wide diversity are the reported characteristics of EDCs. Biologically based assays seem to be a promising method for the identification of EDCs. On the other hand, mass-based analytical methods show excellent sensitivity and precision for their quantification. Several extraction techniques for the instrumental analysis have been developed since they are crucial in determining overall analytical performances. Conventional treatment techniques, including coagulation, precipitation, and activated sludge processes, may not be highly effective in removing EDCs, while the advanced treatment options, such as granular activated carbon (GAC), membrane, and advanced oxidation processes (AOPs), have shown satisfactory results. The oxidative degradation of some EDCs was associated with aromatic moieties in their structure. Further studies on EDCs need to be conducted, such as source reduction, limiting exposure to vulnerable populations, treatment or remediation of contaminated sites, and the detailed understanding of transport mechanisms in the environment.
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Affiliation(s)
- Hyun-Shik Chang
- Department of Environmental Engineering, Kyungpook National University, 1370 Sankyeok-Dong, Buk-Gu, Daegu 702-701, Republic of Korea
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