Efficient treatment of swimming pool water by photoelectrocatalytic ozonation: Inactivation of Candida parapsilosis and mineralization of Benzophenone-3 and urea
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.cej.2019.122094 http://hdl.handle.net/11449/190461 |
Resumo: | Swimming pool water (SPW) poses a potential risk to both human health and the environment due to the presence of contaminants of emerging concern (including components of sunscreens), pathogenic microorganisms, and eventually products of the reaction of chlorine with urea, such as chloramines, which are found in the water. The present work describes the efficient combination of photoelectrocatalysis and ozonation (PEC + O3) to treat both simulated and real contaminated pool water. An annular bubble reactor was designed based on a cylindrical TiO2 nanotubes electrode irradiated by an UVB 36 W lamp with an injection of ozone/air. Benzophenone-3 (BP-3) was used as a model of harmful commercial sunscreen to test the reactor efficiency. The results showed that O3-based treatment efficiently oxidized BP-3 (100% in 20 min) but reached only 32% of mineralization after 120 min of treatment, whereas O3 + PEC-based treatment reached 82% of TOC removal (with 100% BP-3 removal in 20 min). The addition of 106 CFU mL−1 of Candida parapsilosis did not interfere in BP-3 mineralization, and the fungus was found to be completely inactivated after 45 min of treatment. Furthermore, the presence of urea (10 and 20 mg L−1) was not found to exert any significant influence over BP-3 degradation. The method was successfully applied in real SPW sample fortified with 10.0 mg L−1 of Benzophenone-3. The findings show that O3 + PEC-based treatment could be a good alternative for SPW treatment, once it leads to efficient disinfection and mineralization of harmful organic compounds. |
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Efficient treatment of swimming pool water by photoelectrocatalytic ozonation: Inactivation of Candida parapsilosis and mineralization of Benzophenone-3 and ureaDisinfectionOzonePhotoelectrocatalysisSunscreenWastewater treatmentSwimming pool water (SPW) poses a potential risk to both human health and the environment due to the presence of contaminants of emerging concern (including components of sunscreens), pathogenic microorganisms, and eventually products of the reaction of chlorine with urea, such as chloramines, which are found in the water. The present work describes the efficient combination of photoelectrocatalysis and ozonation (PEC + O3) to treat both simulated and real contaminated pool water. An annular bubble reactor was designed based on a cylindrical TiO2 nanotubes electrode irradiated by an UVB 36 W lamp with an injection of ozone/air. Benzophenone-3 (BP-3) was used as a model of harmful commercial sunscreen to test the reactor efficiency. The results showed that O3-based treatment efficiently oxidized BP-3 (100% in 20 min) but reached only 32% of mineralization after 120 min of treatment, whereas O3 + PEC-based treatment reached 82% of TOC removal (with 100% BP-3 removal in 20 min). The addition of 106 CFU mL−1 of Candida parapsilosis did not interfere in BP-3 mineralization, and the fungus was found to be completely inactivated after 45 min of treatment. Furthermore, the presence of urea (10 and 20 mg L−1) was not found to exert any significant influence over BP-3 degradation. The method was successfully applied in real SPW sample fortified with 10.0 mg L−1 of Benzophenone-3. The findings show that O3 + PEC-based treatment could be a good alternative for SPW treatment, once it leads to efficient disinfection and mineralization of harmful organic compounds.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Universidade Estadual Paulista (Unesp) Instituto de Química Araraquara, Av. Prof. Francisco Degni, 55Universidade Estadual do Oeste do Paraná (UNIOESTE) Center for Engineering and Exact Sciences, Rua da Faculdade, 645Universidade Estadual Paulista (Unesp) Instituto de Química Araraquara, Av. Prof. Francisco Degni, 55FAPESP: 2014/03679-7FAPESP: 2015/18109-4CNPq: 446245/2014-3Universidade Estadual Paulista (Unesp)Center for Engineering and Exact SciencesKim, Joaquim Yuji Usukura [UNESP]Bessegato, Guilherme G. [UNESP]de Souza, Bárbara C. [UNESP]da Silva, Josiel J. [UNESP]Zanoni, Maria Valnice Boldrin [UNESP]2019-10-06T17:13:56Z2019-10-06T17:13:56Z2019-12-15info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.cej.2019.122094Chemical Engineering Journal, v. 378.1385-8947http://hdl.handle.net/11449/19046110.1016/j.cej.2019.1220942-s2.0-85068255987Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengChemical Engineering Journalinfo:eu-repo/semantics/openAccess2021-10-23T19:49:57Zoai:repositorio.unesp.br:11449/190461Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T19:49:57Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Efficient treatment of swimming pool water by photoelectrocatalytic ozonation: Inactivation of Candida parapsilosis and mineralization of Benzophenone-3 and urea |
title |
Efficient treatment of swimming pool water by photoelectrocatalytic ozonation: Inactivation of Candida parapsilosis and mineralization of Benzophenone-3 and urea |
spellingShingle |
Efficient treatment of swimming pool water by photoelectrocatalytic ozonation: Inactivation of Candida parapsilosis and mineralization of Benzophenone-3 and urea Kim, Joaquim Yuji Usukura [UNESP] Disinfection Ozone Photoelectrocatalysis Sunscreen Wastewater treatment |
title_short |
Efficient treatment of swimming pool water by photoelectrocatalytic ozonation: Inactivation of Candida parapsilosis and mineralization of Benzophenone-3 and urea |
title_full |
Efficient treatment of swimming pool water by photoelectrocatalytic ozonation: Inactivation of Candida parapsilosis and mineralization of Benzophenone-3 and urea |
title_fullStr |
Efficient treatment of swimming pool water by photoelectrocatalytic ozonation: Inactivation of Candida parapsilosis and mineralization of Benzophenone-3 and urea |
title_full_unstemmed |
Efficient treatment of swimming pool water by photoelectrocatalytic ozonation: Inactivation of Candida parapsilosis and mineralization of Benzophenone-3 and urea |
title_sort |
Efficient treatment of swimming pool water by photoelectrocatalytic ozonation: Inactivation of Candida parapsilosis and mineralization of Benzophenone-3 and urea |
author |
Kim, Joaquim Yuji Usukura [UNESP] |
author_facet |
Kim, Joaquim Yuji Usukura [UNESP] Bessegato, Guilherme G. [UNESP] de Souza, Bárbara C. [UNESP] da Silva, Josiel J. [UNESP] Zanoni, Maria Valnice Boldrin [UNESP] |
author_role |
author |
author2 |
Bessegato, Guilherme G. [UNESP] de Souza, Bárbara C. [UNESP] da Silva, Josiel J. [UNESP] Zanoni, Maria Valnice Boldrin [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Center for Engineering and Exact Sciences |
dc.contributor.author.fl_str_mv |
Kim, Joaquim Yuji Usukura [UNESP] Bessegato, Guilherme G. [UNESP] de Souza, Bárbara C. [UNESP] da Silva, Josiel J. [UNESP] Zanoni, Maria Valnice Boldrin [UNESP] |
dc.subject.por.fl_str_mv |
Disinfection Ozone Photoelectrocatalysis Sunscreen Wastewater treatment |
topic |
Disinfection Ozone Photoelectrocatalysis Sunscreen Wastewater treatment |
description |
Swimming pool water (SPW) poses a potential risk to both human health and the environment due to the presence of contaminants of emerging concern (including components of sunscreens), pathogenic microorganisms, and eventually products of the reaction of chlorine with urea, such as chloramines, which are found in the water. The present work describes the efficient combination of photoelectrocatalysis and ozonation (PEC + O3) to treat both simulated and real contaminated pool water. An annular bubble reactor was designed based on a cylindrical TiO2 nanotubes electrode irradiated by an UVB 36 W lamp with an injection of ozone/air. Benzophenone-3 (BP-3) was used as a model of harmful commercial sunscreen to test the reactor efficiency. The results showed that O3-based treatment efficiently oxidized BP-3 (100% in 20 min) but reached only 32% of mineralization after 120 min of treatment, whereas O3 + PEC-based treatment reached 82% of TOC removal (with 100% BP-3 removal in 20 min). The addition of 106 CFU mL−1 of Candida parapsilosis did not interfere in BP-3 mineralization, and the fungus was found to be completely inactivated after 45 min of treatment. Furthermore, the presence of urea (10 and 20 mg L−1) was not found to exert any significant influence over BP-3 degradation. The method was successfully applied in real SPW sample fortified with 10.0 mg L−1 of Benzophenone-3. The findings show that O3 + PEC-based treatment could be a good alternative for SPW treatment, once it leads to efficient disinfection and mineralization of harmful organic compounds. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-10-06T17:13:56Z 2019-10-06T17:13:56Z 2019-12-15 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.cej.2019.122094 Chemical Engineering Journal, v. 378. 1385-8947 http://hdl.handle.net/11449/190461 10.1016/j.cej.2019.122094 2-s2.0-85068255987 |
url |
http://dx.doi.org/10.1016/j.cej.2019.122094 http://hdl.handle.net/11449/190461 |
identifier_str_mv |
Chemical Engineering Journal, v. 378. 1385-8947 10.1016/j.cej.2019.122094 2-s2.0-85068255987 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Chemical Engineering Journal |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
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1792962197979136000 |