Electrochemical advanced oxidation of carbofuran in aqueous sulfate and/or chloride media using a flow cell with a RuO2-based anode and an air-diffusion cathode at pre-pilot scale

A. Thiam, R. Salazar, E. Brillas, I. Sirés

Research output: Contribution to journalArticle

  • 5 Citations

Abstract

The treatment of 0.348 mM carbofuran solutions in 0.050 M Na2SO4 at pH 3.0 has been studied by electrochemical oxidation with electrogenerated H2O2 (EO-H2O2), electro-Fenton (EF) and photoelectro-Fenton (PEF). The trials were performed in a 2.5 L pre-pilot plant equipped with a filter-press cell, which contained a RuO2-based anode and an air-diffusion cathode, connected to an annular photoreactor with a 160 W UVA lamp in PEF. The oxidizing species were the [rad]OH generated at the anode from water oxidation and in the bulk from Fenton's reaction between added Fe2+ and H2O2 produced at the cathode. The oxidation power of treatments rose in the order EO-H2O2 ≪ EF < PEF, demonstrating the preponderant role of [rad]OH in the bulk. The drug decay always obeyed a pseudo-first order kinetics. Similar TOC abatements of 82%–88% were found in PEF operating at different current densities and carbofuran concentrations, ascribed to the additional photolytic action of UVA light to remove photoactive intermediates, also allowing a gradual detoxification. In matrices with Cl−, active chlorine was also produced as oxidant and its quick reaction with carbofuran caused its faster decay at increasing Cl− content. However, lower mineralization was achieved because of the accumulation of recalcitrant chloroderivatives. GC–MS analysis of treated solutions with 0.070 M NaCl corroborated the formation of 6 chloroderivatives, whereas 5 heteroaromatics were detected in 0.050 M Na2SO4. Oxalic acid was accumulated in the latter medium since its Fe(III) complexes were stable in EF and rapidly mineralized by UVA light in PEF. The mineralization of urban wastewater spiked with carbofuran by PEF in the pre-pilot plant was partial due to the recalcitrant chloroderivatives formed from carbofuran and natural organic matter. © 2017 Elsevier B.V.
LanguageEnglish
Pages133-144
Number of pages12
JournalChemical Engineering Journal
Volume335
DOIs
Publication statusPublished - 2018

Fingerprint

Carbofuran
carbofuran
Pilot plants
Sulfates
Chlorides
Anodes
Cathodes
chloride
sulfate
oxidation
Oxidation
Detoxification
Oxalic acid
Electrochemical oxidation
air
Air
Electric lamps
Oxidants
Biological materials
Chlorine

Keywords

  • Carbofuran
  • Electro-Fenton
  • Electrochemical oxidation
  • Photoelectro-Fenton
  • Wastewater treatment
  • Air
  • Anodes
  • Biological materials
  • Cathodes
  • Chlorine compounds
  • Coal tar
  • Detoxification
  • Electrodes
  • Iron compounds
  • Iron oxides
  • Mineralogy
  • Oxalic acid
  • Pilot plants
  • Produced Water
  • Sodium compounds
  • Sulfur compounds
  • Advanced oxidation
  • Carbofurans
  • Electro-fenton
  • Filter-press cell
  • Natural organic matters
  • Oxidizing species
  • Pseudo first-order kinetics
  • Oxidation

Cite this

@article{337b7d0ee52840e6863d9c640c240ca6,
title = "Electrochemical advanced oxidation of carbofuran in aqueous sulfate and/or chloride media using a flow cell with a RuO2-based anode and an air-diffusion cathode at pre-pilot scale",
abstract = "The treatment of 0.348 mM carbofuran solutions in 0.050 M Na2SO4 at pH 3.0 has been studied by electrochemical oxidation with electrogenerated H2O2 (EO-H2O2), electro-Fenton (EF) and photoelectro-Fenton (PEF). The trials were performed in a 2.5 L pre-pilot plant equipped with a filter-press cell, which contained a RuO2-based anode and an air-diffusion cathode, connected to an annular photoreactor with a 160 W UVA lamp in PEF. The oxidizing species were the [rad]OH generated at the anode from water oxidation and in the bulk from Fenton's reaction between added Fe2+ and H2O2 produced at the cathode. The oxidation power of treatments rose in the order EO-H2O2 ≪ EF < PEF, demonstrating the preponderant role of [rad]OH in the bulk. The drug decay always obeyed a pseudo-first order kinetics. Similar TOC abatements of 82{\%}–88{\%} were found in PEF operating at different current densities and carbofuran concentrations, ascribed to the additional photolytic action of UVA light to remove photoactive intermediates, also allowing a gradual detoxification. In matrices with Cl−, active chlorine was also produced as oxidant and its quick reaction with carbofuran caused its faster decay at increasing Cl− content. However, lower mineralization was achieved because of the accumulation of recalcitrant chloroderivatives. GC–MS analysis of treated solutions with 0.070 M NaCl corroborated the formation of 6 chloroderivatives, whereas 5 heteroaromatics were detected in 0.050 M Na2SO4. Oxalic acid was accumulated in the latter medium since its Fe(III) complexes were stable in EF and rapidly mineralized by UVA light in PEF. The mineralization of urban wastewater spiked with carbofuran by PEF in the pre-pilot plant was partial due to the recalcitrant chloroderivatives formed from carbofuran and natural organic matter. {\circledC} 2017 Elsevier B.V.",
keywords = "Carbofuran, Electro-Fenton, Electrochemical oxidation, Photoelectro-Fenton, Wastewater treatment, Air, Anodes, Biological materials, Cathodes, Chlorine compounds, Coal tar, Detoxification, Electrodes, Iron compounds, Iron oxides, Mineralogy, Oxalic acid, Pilot plants, Produced Water, Sodium compounds, Sulfur compounds, Advanced oxidation, Carbofurans, Electro-fenton, Filter-press cell, Natural organic matters, Oxidizing species, Pseudo first-order kinetics, Oxidation",
author = "A. Thiam and R. Salazar and E. Brillas and I. Sir{\'e}s",
note = "Export Date: 11 April 2018 CODEN: CMEJA Correspondence Address: Brillas, E.; Laboratori d'Electroqu{\'i}mica dels Materials i del Medi Ambient, Departament de Qu{\'i}mica F{\'i}sica, Universitat de Barcelona, Mart{\'i} i Franqu{\`e}s 1-11, Spain; email: brillas@ub.edu Funding details: 3160753 Funding details: CONICYT, Consejo Nacional de Innovaci{\'o}n, Ciencia y Tecnolog{\'i}a Funding text: The authors acknowledge financial support from project CTQ2016-78616-R (AEI/FEDER, EU) and FONDECYT project 3160753 (CONICYT, Chile). Appendix A References: Biziuk, M., Przyjazny, A., Czerwinski, J., Wiergowski, M., Occurrence and determination of pesticides in natural and treated waters (1996) J. Chromatogr. A, 754, pp. 103-123; Borr{\`a}s, N., Oliver, R., Arias, C., Brillas, E., Degradation of atrazine by electrochemical advanced oxidation processes using a boron-doped diamond anode (2010) J. Phys. Chem. A, 114, pp. 6613-6621; Guelfi, D.R.V., Gozzi, F., Sir{\'e}s, I., Brillas, E., Machulek, A., Jr., de Oliveira, S.C., Degradation of the insecticide propoxur by electrochemical advanced oxidation processes using a boron-doped diamond/air-diffusion cell (2017) Environ. Sci. Pollut. Res., 24, pp. 6083-6095; Pimentel, D., Green revolution agriculture and chemical hazards (1996) Sci. Total Environ., 188, pp. 86-98; Chiron, S., Fernandez-Alba, A., Rodriguez, A., Garcia-Calvo, E., Pesticide chemical oxidation: state-of-the-art (2000) Water Res., 34, pp. 366-377; Lu, L., Ma, Y., Kumar, M., Lin, J., Photochemical degradation of carbofuran and elucidation of removal mechanism (2011) Chem. Eng. J., 166, pp. 150-156; Grawe, G.F., Oliveira, T.R., Narciso, E.A., Moccelini, S.K., Terezo, A.J., Soares, M.A., Castilho, M., Electrochemical biosensor for carbofuran pesticide based on esterases from Eupenicillium shearii FREI-39 endophytic fungus (2015) Biosens. Bioelectron., 63, pp. 407-413; Khodadoust, S., Hadjmohammadi, M., Determination of N-methylcarbamate insecticides in water samples using dispersive liquid-liquid microextraction and HPLC with the aid of experimental design and desirability function (2011) Anal. Chim. Acta, 699, pp. 113-119; Koul, N., Lokhande, R.S., Dhar, J.K., Assessment of physico-chemical, microbiological and pesticide content in potable water in metropolitan city of Delhi, India (2012) J. Appl. Chem., 1, pp. 512-518; Pereira dos Anjos, J., de Andrade, J.B., Determination of nineteen pesticides residues (organophosphates, organochlorine, pyrethroids, carbamate, thiocarbamate and strobilurin) in coconut water by SDME/GC-MS (2014) Microchem. J., 112, pp. 119-126; Feng, L., Yang, G., Zhu, L., Xu, J., Xu, X., Chen, Y., Distribution and risk assessment of endocrine-disrupting pesticides in drinking water sources from agricultural watershed (2016) Water Air Soil Pollut., 227, pp. 1-10; Gupta, V.K., Ali, I., Suhas, Saini, V.K., Adsorption of 2,4-D and carbofuran pesticides using fertilizer and steel industry wastes (2006) J. Colloid Interface Sci., 299, pp. 556-563; Mineau, P., Porter, S., Meteyer, C.U., Carbofuran: toxicity, diagnosing poisoning and rehabilitation of poisoned birds (2011) Carbofuran and Wildlife Poisoning: Global Perspectives and Forensic Approaches, , N. Richards Wiley Hoboken, NJ, USA (Chapter 2); Mnif, W., Hassine, A.I.H., Bouaziz, A., Bartegi, A., Thomas, O., Roig, B., Effect of endocrine disruptor pesticides: A review (2011) Int. J. Environ. Res. Public Health, 8, pp. 2265-2303; Vishnuganth, M.A., Remya, N., Kumar, M., Selvaraju, N., Photocatalytic degradation of carbofuran by TiO2-coated activated carbon: Model for kinetic, electrical energy per order and economic analysis (2016) J. Environ. Manage., 181, pp. 201-207; Popovska-Gorevski, M., Dubocovich, M.L., Rajnarayanan, R.V., Carbamate insecticides target humans melatonin receptors (2017) Chem. Res. Toxicol., 30, pp. 574-582; Panizza, M., Cerisola, G., Direct and mediated anodic oxidation of organic pollutants (2009) Chem. Rev., 109, pp. 6541-6569; Brillas, E., Sir{\'e}s, I., Oturan, M.A., Electro-Fenton and related electrochemical technologies based on Fenton's reaction chemistry (2009) Chem. Rev., 109, pp. 6570-6631; Sir{\'e}s, I., Brillas, E., Oturan, M.A., Rodrigo, M.A., Panizza, M., Electrochemical advanced oxidation processes: today and tomorrow. A review (2014) Environ. Sci. Pollut. Res., 21, pp. 8336-8367; Moreira, F.C., Boaventura, R.A.R., Brillas, E., Vilar, V.J.P., Electrochemical advanced oxidation processes: a review on their application to synthetic and real wastewaters (2017) Appl. Catal. B: Environ., 202, pp. 217-261; Lau, T.K., Chu, W., Graham, N., Degradation of the endocrine disruptor carbofuran by UV, O3 and O3/UV (2007) Water Sci. Technol., 55, pp. 275-280; Ma, Y.-S., Sung, C.-F., Lin, J.-G., Degradation of carbofuran in aqueous solution by ultrasound and Fenton processes: effect of system parameters and kinetic study (2010) J. Hazard. Mater., 178, pp. 320-325; Lopez-Alvarez, B., Villegas-Guzman, P., Penuela, G.A., Torres-Palma, R.A., Degradation of a toxic mixture of the pesticides carbofuran and iprodione by UV/H2O2: evaluation of parameters and implications of the degradation pathways on the synergistic effects (2016) Water Air Soil Pollut., 227, pp. 1-13; Lu, L.A., Ma, Y.S., Daverey, A., Lin, J.G., Optimization of photo-Fenton process parameters on carbofuran degradation using central composite design (2012) J. Environ. Sci. Health B, 47, pp. 553-561; Abdessalem, A.K., Bellakhal, N., Oturan, N., Dachraoui, M., Oturan, M.A., Treatment of a mixture of three pesticides by photo- and electro-Fenton processes (2010) Desalination, 250, pp. 450-455; Singh, R.J., Philip, L., Ramanujam, S., Rapid removal of carbofuran from aqueous solution by pulsed corona discharge treatment: kinetic study, oxidative, reductive degradation pathway, and toxicity assay (2016) Ind. Eng. Chem. Res., 55, pp. 7201-7209; Pu, L., Gao, J., Hu, Y., Liang, H., Xiao, W., Wang, X., Oxidation degradation of aqueous carbofuran induced by low temperature plasma (2008) Plasma Sci. Technol., 10, pp. 348-351; Wang, Q., Lemley, A.T., Oxidative degradation and detoxification of aqueous carbofuran by membrane anodic Fenton treatment (2003) J. Hazard. Mater., 98, pp. 241-255; Abdessalem, A.K., Oturan, M.A., Oturan, N., Bellakhal, N., Dachraoui, M., Treatment of an aqueous pesticides mixture solution by direct and indirect electrochemical advanced oxidation processes (2010) Int. J. Environ. Anal. Chem., 90, pp. 468-477; Abdessalem, A.K., Oturan, N., Bellakhal, N., Dachraoui, M., Oturan, M.A., Remediation of water contaminated with pesticides by indirect electrochemical oxidation process electro-Fenton (2008) J. Adv. Oxid. Technol., 11, pp. 276-282; Thiam, A., Brillas, E., Centellas, F., Cabot, P.L., Sir{\'e}s, I., Electrochemical reactivity of Ponceau 4R (food additive E124) in different electrolytes and batch cells (2015) Electrochim. Acta, 173, pp. 523-533; Coria, G., Sir{\'e}s, I., Brillas, E., Nava, J.L., Influence of the anode material on the degradation of naproxen by Fenton-based electrochemical processes (2016) Chem. Eng. J., 304, pp. 817-825; Steter, J.R., Brillas, E., Sir{\'e}s, I., On the selection of the anode material for the electrochemical removal of methylparaben from different aqueous media (2016) Electrochim. Acta, 222, pp. 1464-1474; Flox, C., Garrido, J.A., Rodr{\'i}guez, R.M., Cabot, P.L., Centellas, F., Arias, C., Brillas, E., Mineralization of herbicide mecoprop by photoelectro-Fenton with UVA and solar light (2007) Catal. Today, 129, pp. 29-36; Ruiz, E.J., Hern{\'a}ndez-Ram{\'i}rez, A., Peralta-Hern{\'a}ndez, J.M., Arias, C., Brillas, E., Application of solar photoelectro-Fenton technology to azo dyes mineralization: Effect of current density, Fe2+ and dye concentration (2011) Chem. Eng. J., 171, pp. 385-392; Gozzi, F., Sir{\'e}s, I., Thiam, A., de Oliveira, S.C., Machulek, A., Jr., Brillas, E., Treatment of single and mixed pesticide formulations by solar photoelectro-Fenton using a flow plant (2017) Chem. Eng. J., 310, pp. 503-513; Marselli, B., Garcia-Gomez, J., Michaud, P.-A., Rodrigo, M.A., Comninellis, C., Electrogeneration of hydroxyl radicals on boron-doped diamond electrodes (2003) J. Electrochem. Soc., 150, pp. D79-D83; Borb{\'o}n, B., Oropeza-Guzman, M.T., Brillas, E., Sir{\'e}s, I., Sequential electrochemical treatment of dairy wastewater using aluminium and DSA-type anodes (2014) Environ. Sci. Pollut. Res., 21, pp. 8573-8584; Sir{\'e}s, I., Centellas, F., Garrido, J.A., Rodr{\'i}guez, R.M., Arias, C., Cabot, P.-L., Brillas, E., Mineralization of clofibric acid by electrochemical advanced oxidation processes using a boron-doped diamond anode and Fe2+ and UVA light as catalysts (2007) Appl. Catal. B: Environ., 72, pp. 373-381; El-Ghenymy, A., Oturan, N., Oturan, M.A., Garrido, J.A., Cabot, P.L., Centellas, F., Rodr{\'i}guez, R.M., Brillas, E., Comparative electro-Fenton and UVA photoelectro-Fenton degradation of the antibiotic sulfanilamide using a stirred BDD/air-diffusion tank reactor (2013) Chem. Eng. J., 234, pp. 115-123; Bedolla-Guzman, A., Sir{\'e}s, I., Thiam, A., Peralta-Hern{\'a}ndez, J.M., Guti{\'e}rrez-Granados, S., Brillas, E., Application of anodic oxidation, electro-Fenton and UVA photoelectro-Fenton to decolorize and mineralize acidic solutions of Reactive Yellow 160 azo dye (2016) Electrochim. Acta, 206, pp. 307-316; Salazar, R., Brillas, E., Sir{\'e}s, I., Finding the best Fe2+/Cu2+ combination for the solar photoelectro-Fenton treatment of simulated wastewater containing the industrial textile dye Disperse Blue 3 (2012) Appl. Catal. B: Environ., 115-116, pp. 107-116; Pipi, A.R.F., De Andrade, A.R., Brillas, E., Sir{\'e}s, I., Total removal of alachlor from water by electrochemical processes (2014) Sep. Purif. Technol., 132, pp. 674-683; Thiam, A., Sir{\'e}s, I., Centellas, F., Cabot, P.L., Brillas, E., Decolorization and mineralization of Allura Red AC azo dye by solar photoelectro-Fenton: identification of intermediates (2015) Chemosphere, 136, pp. 1-8; Randazzo, S., Scialdone, O., Brillas, E., Sir{\'e}s, I., Comparative electrochemical treatments of two chlorinated aliphatic hydrocarbons. Time course of the main reaction by-products (2011) J. Hazard. Mater., 192, pp. 1555-1564; Thiam, A., Sir{\'e}s, I., Brillas, E., Treatment of a mixture of food color additives (E122, E124 and E129) in different water matrices by UVA and solar photoelectro-Fenton (2015) Water Res., 81, pp. 178-187; Ridruejo, C., Salazar, C., Cabot, P.L., Centellas, F., Brillas, E., Sir{\'e}s, I., Electrochemical oxidation of anesthetic tetracaine in aqueous medium. Influence of the anode and matrix composition (2017) Chem. Eng. J., 326, pp. 811-819; De Laat, J., Le, G.T., Legube, B., A comparative study of the effects of chloride, sulfate and nitrate ions on the rates of decomposition of H2O2 and organic compounds by Fe(II)/H2O2 and Fe(III)/H2O2 (2004) Chemosphere, 55, pp. 715-723",
year = "2018",
doi = "10.1016/j.cej.2017.10.137",
language = "English",
volume = "335",
pages = "133--144",
journal = "Chemical Engineering Journal",
issn = "1385-8947",
publisher = "Elsevier Science B.V.",

}

TY - JOUR

T1 - Electrochemical advanced oxidation of carbofuran in aqueous sulfate and/or chloride media using a flow cell with a RuO2-based anode and an air-diffusion cathode at pre-pilot scale

AU - Thiam, A.

AU - Salazar, R.

AU - Brillas, E.

AU - Sirés, I.

N1 - Export Date: 11 April 2018 CODEN: CMEJA Correspondence Address: Brillas, E.; Laboratori d'Electroquímica dels Materials i del Medi Ambient, Departament de Química Física, Universitat de Barcelona, Martí i Franquès 1-11, Spain; email: brillas@ub.edu Funding details: 3160753 Funding details: CONICYT, Consejo Nacional de Innovación, Ciencia y Tecnología Funding text: The authors acknowledge financial support from project CTQ2016-78616-R (AEI/FEDER, EU) and FONDECYT project 3160753 (CONICYT, Chile). Appendix A References: Biziuk, M., Przyjazny, A., Czerwinski, J., Wiergowski, M., Occurrence and determination of pesticides in natural and treated waters (1996) J. Chromatogr. A, 754, pp. 103-123; Borràs, N., Oliver, R., Arias, C., Brillas, E., Degradation of atrazine by electrochemical advanced oxidation processes using a boron-doped diamond anode (2010) J. Phys. Chem. A, 114, pp. 6613-6621; Guelfi, D.R.V., Gozzi, F., Sirés, I., Brillas, E., Machulek, A., Jr., de Oliveira, S.C., Degradation of the insecticide propoxur by electrochemical advanced oxidation processes using a boron-doped diamond/air-diffusion cell (2017) Environ. Sci. Pollut. Res., 24, pp. 6083-6095; Pimentel, D., Green revolution agriculture and chemical hazards (1996) Sci. Total Environ., 188, pp. 86-98; Chiron, S., Fernandez-Alba, A., Rodriguez, A., Garcia-Calvo, E., Pesticide chemical oxidation: state-of-the-art (2000) Water Res., 34, pp. 366-377; Lu, L., Ma, Y., Kumar, M., Lin, J., Photochemical degradation of carbofuran and elucidation of removal mechanism (2011) Chem. Eng. J., 166, pp. 150-156; Grawe, G.F., Oliveira, T.R., Narciso, E.A., Moccelini, S.K., Terezo, A.J., Soares, M.A., Castilho, M., Electrochemical biosensor for carbofuran pesticide based on esterases from Eupenicillium shearii FREI-39 endophytic fungus (2015) Biosens. Bioelectron., 63, pp. 407-413; Khodadoust, S., Hadjmohammadi, M., Determination of N-methylcarbamate insecticides in water samples using dispersive liquid-liquid microextraction and HPLC with the aid of experimental design and desirability function (2011) Anal. Chim. Acta, 699, pp. 113-119; Koul, N., Lokhande, R.S., Dhar, J.K., Assessment of physico-chemical, microbiological and pesticide content in potable water in metropolitan city of Delhi, India (2012) J. Appl. Chem., 1, pp. 512-518; Pereira dos Anjos, J., de Andrade, J.B., Determination of nineteen pesticides residues (organophosphates, organochlorine, pyrethroids, carbamate, thiocarbamate and strobilurin) in coconut water by SDME/GC-MS (2014) Microchem. J., 112, pp. 119-126; Feng, L., Yang, G., Zhu, L., Xu, J., Xu, X., Chen, Y., Distribution and risk assessment of endocrine-disrupting pesticides in drinking water sources from agricultural watershed (2016) Water Air Soil Pollut., 227, pp. 1-10; Gupta, V.K., Ali, I., Suhas, Saini, V.K., Adsorption of 2,4-D and carbofuran pesticides using fertilizer and steel industry wastes (2006) J. Colloid Interface Sci., 299, pp. 556-563; Mineau, P., Porter, S., Meteyer, C.U., Carbofuran: toxicity, diagnosing poisoning and rehabilitation of poisoned birds (2011) Carbofuran and Wildlife Poisoning: Global Perspectives and Forensic Approaches, , N. Richards Wiley Hoboken, NJ, USA (Chapter 2); Mnif, W., Hassine, A.I.H., Bouaziz, A., Bartegi, A., Thomas, O., Roig, B., Effect of endocrine disruptor pesticides: A review (2011) Int. J. Environ. Res. Public Health, 8, pp. 2265-2303; Vishnuganth, M.A., Remya, N., Kumar, M., Selvaraju, N., Photocatalytic degradation of carbofuran by TiO2-coated activated carbon: Model for kinetic, electrical energy per order and economic analysis (2016) J. Environ. Manage., 181, pp. 201-207; Popovska-Gorevski, M., Dubocovich, M.L., Rajnarayanan, R.V., Carbamate insecticides target humans melatonin receptors (2017) Chem. Res. Toxicol., 30, pp. 574-582; Panizza, M., Cerisola, G., Direct and mediated anodic oxidation of organic pollutants (2009) Chem. Rev., 109, pp. 6541-6569; Brillas, E., Sirés, I., Oturan, M.A., Electro-Fenton and related electrochemical technologies based on Fenton's reaction chemistry (2009) Chem. Rev., 109, pp. 6570-6631; Sirés, I., Brillas, E., Oturan, M.A., Rodrigo, M.A., Panizza, M., Electrochemical advanced oxidation processes: today and tomorrow. A review (2014) Environ. Sci. Pollut. Res., 21, pp. 8336-8367; Moreira, F.C., Boaventura, R.A.R., Brillas, E., Vilar, V.J.P., Electrochemical advanced oxidation processes: a review on their application to synthetic and real wastewaters (2017) Appl. Catal. B: Environ., 202, pp. 217-261; Lau, T.K., Chu, W., Graham, N., Degradation of the endocrine disruptor carbofuran by UV, O3 and O3/UV (2007) Water Sci. Technol., 55, pp. 275-280; Ma, Y.-S., Sung, C.-F., Lin, J.-G., Degradation of carbofuran in aqueous solution by ultrasound and Fenton processes: effect of system parameters and kinetic study (2010) J. Hazard. Mater., 178, pp. 320-325; Lopez-Alvarez, B., Villegas-Guzman, P., Penuela, G.A., Torres-Palma, R.A., Degradation of a toxic mixture of the pesticides carbofuran and iprodione by UV/H2O2: evaluation of parameters and implications of the degradation pathways on the synergistic effects (2016) Water Air Soil Pollut., 227, pp. 1-13; Lu, L.A., Ma, Y.S., Daverey, A., Lin, J.G., Optimization of photo-Fenton process parameters on carbofuran degradation using central composite design (2012) J. Environ. Sci. Health B, 47, pp. 553-561; Abdessalem, A.K., Bellakhal, N., Oturan, N., Dachraoui, M., Oturan, M.A., Treatment of a mixture of three pesticides by photo- and electro-Fenton processes (2010) Desalination, 250, pp. 450-455; Singh, R.J., Philip, L., Ramanujam, S., Rapid removal of carbofuran from aqueous solution by pulsed corona discharge treatment: kinetic study, oxidative, reductive degradation pathway, and toxicity assay (2016) Ind. Eng. Chem. Res., 55, pp. 7201-7209; Pu, L., Gao, J., Hu, Y., Liang, H., Xiao, W., Wang, X., Oxidation degradation of aqueous carbofuran induced by low temperature plasma (2008) Plasma Sci. Technol., 10, pp. 348-351; Wang, Q., Lemley, A.T., Oxidative degradation and detoxification of aqueous carbofuran by membrane anodic Fenton treatment (2003) J. Hazard. Mater., 98, pp. 241-255; Abdessalem, A.K., Oturan, M.A., Oturan, N., Bellakhal, N., Dachraoui, M., Treatment of an aqueous pesticides mixture solution by direct and indirect electrochemical advanced oxidation processes (2010) Int. J. Environ. Anal. Chem., 90, pp. 468-477; Abdessalem, A.K., Oturan, N., Bellakhal, N., Dachraoui, M., Oturan, M.A., Remediation of water contaminated with pesticides by indirect electrochemical oxidation process electro-Fenton (2008) J. Adv. Oxid. Technol., 11, pp. 276-282; Thiam, A., Brillas, E., Centellas, F., Cabot, P.L., Sirés, I., Electrochemical reactivity of Ponceau 4R (food additive E124) in different electrolytes and batch cells (2015) Electrochim. Acta, 173, pp. 523-533; Coria, G., Sirés, I., Brillas, E., Nava, J.L., Influence of the anode material on the degradation of naproxen by Fenton-based electrochemical processes (2016) Chem. Eng. J., 304, pp. 817-825; Steter, J.R., Brillas, E., Sirés, I., On the selection of the anode material for the electrochemical removal of methylparaben from different aqueous media (2016) Electrochim. Acta, 222, pp. 1464-1474; Flox, C., Garrido, J.A., Rodríguez, R.M., Cabot, P.L., Centellas, F., Arias, C., Brillas, E., Mineralization of herbicide mecoprop by photoelectro-Fenton with UVA and solar light (2007) Catal. Today, 129, pp. 29-36; Ruiz, E.J., Hernández-Ramírez, A., Peralta-Hernández, J.M., Arias, C., Brillas, E., Application of solar photoelectro-Fenton technology to azo dyes mineralization: Effect of current density, Fe2+ and dye concentration (2011) Chem. Eng. J., 171, pp. 385-392; Gozzi, F., Sirés, I., Thiam, A., de Oliveira, S.C., Machulek, A., Jr., Brillas, E., Treatment of single and mixed pesticide formulations by solar photoelectro-Fenton using a flow plant (2017) Chem. Eng. J., 310, pp. 503-513; Marselli, B., Garcia-Gomez, J., Michaud, P.-A., Rodrigo, M.A., Comninellis, C., Electrogeneration of hydroxyl radicals on boron-doped diamond electrodes (2003) J. Electrochem. Soc., 150, pp. D79-D83; Borbón, B., Oropeza-Guzman, M.T., Brillas, E., Sirés, I., Sequential electrochemical treatment of dairy wastewater using aluminium and DSA-type anodes (2014) Environ. Sci. Pollut. 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PY - 2018

Y1 - 2018

N2 - The treatment of 0.348 mM carbofuran solutions in 0.050 M Na2SO4 at pH 3.0 has been studied by electrochemical oxidation with electrogenerated H2O2 (EO-H2O2), electro-Fenton (EF) and photoelectro-Fenton (PEF). The trials were performed in a 2.5 L pre-pilot plant equipped with a filter-press cell, which contained a RuO2-based anode and an air-diffusion cathode, connected to an annular photoreactor with a 160 W UVA lamp in PEF. The oxidizing species were the [rad]OH generated at the anode from water oxidation and in the bulk from Fenton's reaction between added Fe2+ and H2O2 produced at the cathode. The oxidation power of treatments rose in the order EO-H2O2 ≪ EF < PEF, demonstrating the preponderant role of [rad]OH in the bulk. The drug decay always obeyed a pseudo-first order kinetics. Similar TOC abatements of 82%–88% were found in PEF operating at different current densities and carbofuran concentrations, ascribed to the additional photolytic action of UVA light to remove photoactive intermediates, also allowing a gradual detoxification. In matrices with Cl−, active chlorine was also produced as oxidant and its quick reaction with carbofuran caused its faster decay at increasing Cl− content. However, lower mineralization was achieved because of the accumulation of recalcitrant chloroderivatives. GC–MS analysis of treated solutions with 0.070 M NaCl corroborated the formation of 6 chloroderivatives, whereas 5 heteroaromatics were detected in 0.050 M Na2SO4. Oxalic acid was accumulated in the latter medium since its Fe(III) complexes were stable in EF and rapidly mineralized by UVA light in PEF. The mineralization of urban wastewater spiked with carbofuran by PEF in the pre-pilot plant was partial due to the recalcitrant chloroderivatives formed from carbofuran and natural organic matter. © 2017 Elsevier B.V.

AB - The treatment of 0.348 mM carbofuran solutions in 0.050 M Na2SO4 at pH 3.0 has been studied by electrochemical oxidation with electrogenerated H2O2 (EO-H2O2), electro-Fenton (EF) and photoelectro-Fenton (PEF). The trials were performed in a 2.5 L pre-pilot plant equipped with a filter-press cell, which contained a RuO2-based anode and an air-diffusion cathode, connected to an annular photoreactor with a 160 W UVA lamp in PEF. The oxidizing species were the [rad]OH generated at the anode from water oxidation and in the bulk from Fenton's reaction between added Fe2+ and H2O2 produced at the cathode. The oxidation power of treatments rose in the order EO-H2O2 ≪ EF < PEF, demonstrating the preponderant role of [rad]OH in the bulk. The drug decay always obeyed a pseudo-first order kinetics. Similar TOC abatements of 82%–88% were found in PEF operating at different current densities and carbofuran concentrations, ascribed to the additional photolytic action of UVA light to remove photoactive intermediates, also allowing a gradual detoxification. In matrices with Cl−, active chlorine was also produced as oxidant and its quick reaction with carbofuran caused its faster decay at increasing Cl− content. However, lower mineralization was achieved because of the accumulation of recalcitrant chloroderivatives. GC–MS analysis of treated solutions with 0.070 M NaCl corroborated the formation of 6 chloroderivatives, whereas 5 heteroaromatics were detected in 0.050 M Na2SO4. Oxalic acid was accumulated in the latter medium since its Fe(III) complexes were stable in EF and rapidly mineralized by UVA light in PEF. The mineralization of urban wastewater spiked with carbofuran by PEF in the pre-pilot plant was partial due to the recalcitrant chloroderivatives formed from carbofuran and natural organic matter. © 2017 Elsevier B.V.

KW - Carbofuran

KW - Electro-Fenton

KW - Electrochemical oxidation

KW - Photoelectro-Fenton

KW - Wastewater treatment

KW - Air

KW - Anodes

KW - Biological materials

KW - Cathodes

KW - Chlorine compounds

KW - Coal tar

KW - Detoxification

KW - Electrodes

KW - Iron compounds

KW - Iron oxides

KW - Mineralogy

KW - Oxalic acid

KW - Pilot plants

KW - Produced Water

KW - Sodium compounds

KW - Sulfur compounds

KW - Advanced oxidation

KW - Carbofurans

KW - Electro-fenton

KW - Filter-press cell

KW - Natural organic matters

KW - Oxidizing species

KW - Pseudo first-order kinetics

KW - Oxidation

U2 - 10.1016/j.cej.2017.10.137

DO - 10.1016/j.cej.2017.10.137

M3 - Article

VL - 335

SP - 133

EP - 144

JO - Chemical Engineering Journal

T2 - Chemical Engineering Journal

JF - Chemical Engineering Journal

SN - 1385-8947

ER -