Elimination of volatile organic compounds in paint drying by absorption reaction in water combined with the ozone oxidation technique

Autores
Alvarez, Juan Martín; Seijas, Carlos J.; Bianchi, Gustavo Luis
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The aim of this work was to evaluate the treatment of Volatile Organic Compounds (VOCs) released during the painting and drying process of an industrial paint by absorbing them in a water curtain and then oxidizing them with ozone. For this purpose, laboratory equipment was built consisting of a paint drying cabin and a bubble column where the VOCs were absorbed and treated. Tests were carried out with simulated effluents using distilled water and service water, to which 3.5 μg/L of formaldehyde, 11.6 mg/L of butyl acetate, 5.3 mg/L of ethanol and 5.6 mg/L of methyl ethyl ketone were added, according to data provided by the paint manufacturer; these tests were then repeated using the industrial paint currently used in the processes. The water saturation with the VOCs and the simultaneous treatment by means of ozone dosage was studied, taking the Chemical Oxygen Demand (COD) value as a treatment effectiveness parameter. VOC saturation is achieved for exposure times between 5-15 minutes in the aqueous effluent. The system of absorption and ozonation is effective for the elimination of the released VOCs, achieving a 94% reduction in the COD of the wastewater. Finally, it was observed that when O3 is injected together with the paint, the reduction of COD in the effluent is favored due to a first instance of direct ozonation of the VOCs, and a second, slower indirect stage, generated by the presence of free radicals from the reaction of O3 with water [hydroxyl radical (HO?), superoxide anion radical (O2??) and hydroperoxyl radical (HO2?)] favored by the pH of the solution. The reaction kinetics of VOC oxidation is of first order.
Fil: Alvarez, Juan Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ingeniería. Instituto Malvinas; Argentina
Fil: Seijas, Carlos J.. Universidad Nacional de La Plata. Facultad de Ingeniería. Instituto Malvinas; Argentina
Fil: Bianchi, Gustavo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ingeniería. Instituto Malvinas; Argentina
Materia
OZONATION REDUCED THE COD
VOCS
CATALYTIC OZONE OXIDATION
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/127245
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Elimination of volatile organic compounds in paint drying by absorption reaction in water combined with the ozone oxidation techniqueAlvarez, Juan MartínSeijas, Carlos J.Bianchi, Gustavo LuisOZONATION REDUCED THE CODVOCSCATALYTIC OZONE OXIDATIONhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The aim of this work was to evaluate the treatment of Volatile Organic Compounds (VOCs) released during the painting and drying process of an industrial paint by absorbing them in a water curtain and then oxidizing them with ozone. For this purpose, laboratory equipment was built consisting of a paint drying cabin and a bubble column where the VOCs were absorbed and treated. Tests were carried out with simulated effluents using distilled water and service water, to which 3.5 μg/L of formaldehyde, 11.6 mg/L of butyl acetate, 5.3 mg/L of ethanol and 5.6 mg/L of methyl ethyl ketone were added, according to data provided by the paint manufacturer; these tests were then repeated using the industrial paint currently used in the processes. The water saturation with the VOCs and the simultaneous treatment by means of ozone dosage was studied, taking the Chemical Oxygen Demand (COD) value as a treatment effectiveness parameter. VOC saturation is achieved for exposure times between 5-15 minutes in the aqueous effluent. The system of absorption and ozonation is effective for the elimination of the released VOCs, achieving a 94% reduction in the COD of the wastewater. Finally, it was observed that when O3 is injected together with the paint, the reduction of COD in the effluent is favored due to a first instance of direct ozonation of the VOCs, and a second, slower indirect stage, generated by the presence of free radicals from the reaction of O3 with water [hydroxyl radical (HO?), superoxide anion radical (O2??) and hydroperoxyl radical (HO2?)] favored by the pH of the solution. The reaction kinetics of VOC oxidation is of first order.Fil: Alvarez, Juan Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ingeniería. Instituto Malvinas; ArgentinaFil: Seijas, Carlos J.. Universidad Nacional de La Plata. Facultad de Ingeniería. Instituto Malvinas; ArgentinaFil: Bianchi, Gustavo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ingeniería. Instituto Malvinas; ArgentinaElsevier2020-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/127245Alvarez, Juan Martín; Seijas, Carlos J.; Bianchi, Gustavo Luis; Elimination of volatile organic compounds in paint drying by absorption reaction in water combined with the ozone oxidation technique; Elsevier; Environmental Advances; 2; 10-2020; 1-82666-7657CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S266676572030017Xinfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.envadv.2020.100017info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:09:00Zoai:ri.conicet.gov.ar:11336/127245instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:09:00.422CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Elimination of volatile organic compounds in paint drying by absorption reaction in water combined with the ozone oxidation technique
title Elimination of volatile organic compounds in paint drying by absorption reaction in water combined with the ozone oxidation technique
spellingShingle Elimination of volatile organic compounds in paint drying by absorption reaction in water combined with the ozone oxidation technique
Alvarez, Juan Martín
OZONATION REDUCED THE COD
VOCS
CATALYTIC OZONE OXIDATION
title_short Elimination of volatile organic compounds in paint drying by absorption reaction in water combined with the ozone oxidation technique
title_full Elimination of volatile organic compounds in paint drying by absorption reaction in water combined with the ozone oxidation technique
title_fullStr Elimination of volatile organic compounds in paint drying by absorption reaction in water combined with the ozone oxidation technique
title_full_unstemmed Elimination of volatile organic compounds in paint drying by absorption reaction in water combined with the ozone oxidation technique
title_sort Elimination of volatile organic compounds in paint drying by absorption reaction in water combined with the ozone oxidation technique
dc.creator.none.fl_str_mv Alvarez, Juan Martín
Seijas, Carlos J.
Bianchi, Gustavo Luis
author Alvarez, Juan Martín
author_facet Alvarez, Juan Martín
Seijas, Carlos J.
Bianchi, Gustavo Luis
author_role author
author2 Seijas, Carlos J.
Bianchi, Gustavo Luis
author2_role author
author
dc.subject.none.fl_str_mv OZONATION REDUCED THE COD
VOCS
CATALYTIC OZONE OXIDATION
topic OZONATION REDUCED THE COD
VOCS
CATALYTIC OZONE OXIDATION
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The aim of this work was to evaluate the treatment of Volatile Organic Compounds (VOCs) released during the painting and drying process of an industrial paint by absorbing them in a water curtain and then oxidizing them with ozone. For this purpose, laboratory equipment was built consisting of a paint drying cabin and a bubble column where the VOCs were absorbed and treated. Tests were carried out with simulated effluents using distilled water and service water, to which 3.5 μg/L of formaldehyde, 11.6 mg/L of butyl acetate, 5.3 mg/L of ethanol and 5.6 mg/L of methyl ethyl ketone were added, according to data provided by the paint manufacturer; these tests were then repeated using the industrial paint currently used in the processes. The water saturation with the VOCs and the simultaneous treatment by means of ozone dosage was studied, taking the Chemical Oxygen Demand (COD) value as a treatment effectiveness parameter. VOC saturation is achieved for exposure times between 5-15 minutes in the aqueous effluent. The system of absorption and ozonation is effective for the elimination of the released VOCs, achieving a 94% reduction in the COD of the wastewater. Finally, it was observed that when O3 is injected together with the paint, the reduction of COD in the effluent is favored due to a first instance of direct ozonation of the VOCs, and a second, slower indirect stage, generated by the presence of free radicals from the reaction of O3 with water [hydroxyl radical (HO?), superoxide anion radical (O2??) and hydroperoxyl radical (HO2?)] favored by the pH of the solution. The reaction kinetics of VOC oxidation is of first order.
Fil: Alvarez, Juan Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ingeniería. Instituto Malvinas; Argentina
Fil: Seijas, Carlos J.. Universidad Nacional de La Plata. Facultad de Ingeniería. Instituto Malvinas; Argentina
Fil: Bianchi, Gustavo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ingeniería. Instituto Malvinas; Argentina
description The aim of this work was to evaluate the treatment of Volatile Organic Compounds (VOCs) released during the painting and drying process of an industrial paint by absorbing them in a water curtain and then oxidizing them with ozone. For this purpose, laboratory equipment was built consisting of a paint drying cabin and a bubble column where the VOCs were absorbed and treated. Tests were carried out with simulated effluents using distilled water and service water, to which 3.5 μg/L of formaldehyde, 11.6 mg/L of butyl acetate, 5.3 mg/L of ethanol and 5.6 mg/L of methyl ethyl ketone were added, according to data provided by the paint manufacturer; these tests were then repeated using the industrial paint currently used in the processes. The water saturation with the VOCs and the simultaneous treatment by means of ozone dosage was studied, taking the Chemical Oxygen Demand (COD) value as a treatment effectiveness parameter. VOC saturation is achieved for exposure times between 5-15 minutes in the aqueous effluent. The system of absorption and ozonation is effective for the elimination of the released VOCs, achieving a 94% reduction in the COD of the wastewater. Finally, it was observed that when O3 is injected together with the paint, the reduction of COD in the effluent is favored due to a first instance of direct ozonation of the VOCs, and a second, slower indirect stage, generated by the presence of free radicals from the reaction of O3 with water [hydroxyl radical (HO?), superoxide anion radical (O2??) and hydroperoxyl radical (HO2?)] favored by the pH of the solution. The reaction kinetics of VOC oxidation is of first order.
publishDate 2020
dc.date.none.fl_str_mv 2020-10
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/127245
Alvarez, Juan Martín; Seijas, Carlos J.; Bianchi, Gustavo Luis; Elimination of volatile organic compounds in paint drying by absorption reaction in water combined with the ozone oxidation technique; Elsevier; Environmental Advances; 2; 10-2020; 1-8
2666-7657
CONICET Digital
CONICET
url http://hdl.handle.net/11336/127245
identifier_str_mv Alvarez, Juan Martín; Seijas, Carlos J.; Bianchi, Gustavo Luis; Elimination of volatile organic compounds in paint drying by absorption reaction in water combined with the ozone oxidation technique; Elsevier; Environmental Advances; 2; 10-2020; 1-8
2666-7657
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S266676572030017X
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.envadv.2020.100017
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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