Photodegradation of dipyrone by heterogeneous catalysis using TiO2/UV
Autor(a) principal: | |
---|---|
Data de Publicação: | 2020 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Research, Society and Development |
Texto Completo: | https://rsdjournal.org/index.php/rsd/article/view/1646 |
Resumo: | The main goal of the water and wastewater treatment plants is to remove the organic load. The removal of other types of compounds, such as the emerging contaminants, usually found in trace order concentrations (µg L-1 to ng L-1) is not efficient. Thus, new treatment alternatives are being investigated and, therefore, the proposed work aimed to evaluate the removal of sodium dipyrone in aqueous medium, through the heterogeneous photocatalysis process, using titanium dioxide (TiO2) as a semiconductor, employing radiation. artificial and / or solar ultraviolet, monitored by UV-Visible spectroscopy. The degradation study was performed using two different water sources (ultrapure and river water). The sodium dipyrone concentration was monitored using UV-Visible spectrometer at 258 nm of wavelength. The results indicated that using 75 mg L-1 TiO2/UV process, 80% of the sodium dipyrone (20 mg L-1) was removed after 60 minutes of irradiation. The TiO2/solar UV radiation was also efficient, removing 70% of the drug after 60 minutes of treatment. By using river water as the contaminated medium, 80% and 54% of dipyrone was removed using artificial and solar UV, respectively. Total organic carbon (TOC) analysis showed that approximately 30% of sodium dipyrone was mineralized in the same time period (60 min). The total mineralization od dipyrone was not observed probably due to the generation of degradation, which were not the main objective of study in the present work. |
id |
UNIFEI_33bcba193e8cfe6940a425943f5031db |
---|---|
oai_identifier_str |
oai:ojs.pkp.sfu.ca:article/1646 |
network_acronym_str |
UNIFEI |
network_name_str |
Research, Society and Development |
repository_id_str |
|
spelling |
Photodegradation of dipyrone by heterogeneous catalysis using TiO2/UVFotodegradación de dipirona por catálisis heterogénea usando TiO2/UVFotodegradação de dipirona por catálise heterogênea empregando TiO2/UVContaminantes emergentesdipirona de sodioprocesos oxidativos avanzadosradiación UV.Contaminantes emergentesdipirona sódicaprocessos oxidativos avançadosradiação UV.Emerging contaminantssodium dipyroneadvanced oxidative processesUv radiation.The main goal of the water and wastewater treatment plants is to remove the organic load. The removal of other types of compounds, such as the emerging contaminants, usually found in trace order concentrations (µg L-1 to ng L-1) is not efficient. Thus, new treatment alternatives are being investigated and, therefore, the proposed work aimed to evaluate the removal of sodium dipyrone in aqueous medium, through the heterogeneous photocatalysis process, using titanium dioxide (TiO2) as a semiconductor, employing radiation. artificial and / or solar ultraviolet, monitored by UV-Visible spectroscopy. The degradation study was performed using two different water sources (ultrapure and river water). The sodium dipyrone concentration was monitored using UV-Visible spectrometer at 258 nm of wavelength. The results indicated that using 75 mg L-1 TiO2/UV process, 80% of the sodium dipyrone (20 mg L-1) was removed after 60 minutes of irradiation. The TiO2/solar UV radiation was also efficient, removing 70% of the drug after 60 minutes of treatment. By using river water as the contaminated medium, 80% and 54% of dipyrone was removed using artificial and solar UV, respectively. Total organic carbon (TOC) analysis showed that approximately 30% of sodium dipyrone was mineralized in the same time period (60 min). The total mineralization od dipyrone was not observed probably due to the generation of degradation, which were not the main objective of study in the present work.Las plantas de tratamiento de aguas residuales y las plantas de tratamiento de agua tienen como objetivo eliminar la carga orgánica. La eliminación de otros tipos de compuestos, como los contaminantes emergentes que se encuentran en concentraciones traza (del orden de µg L-1 a ng L-1), todavía es deficiente. Por lo tanto, se están investigando nuevas alternativas de tratamiento y, por lo tanto, el trabajo propuesto tuvo como objetivo evaluar la eliminación de la dipirona de sodio en medio acuoso, a través del proceso heterogéneo de fotocatálisis, utilizando dióxido de titanio (TiO2) como semiconductor, empleando radiación. ultravioleta artificial y / o solar, monitoreada por espectroscopía UV-Visible.. El estudio de degradación se realizó en dos matrices (agua ultrapura y agua de río) y para controlar la degradación de la dipirona de sodio se utilizó el espectrómetro UV-Visible a una longitud de onda de 258 nm. Los resultados indicaron que era posible eliminar el 80% de dipirona de sodio (20 mg L-1) después de 60 minutos usando 75 mg de L-1 TiO2 bajo aireación constante e irradiación UV artificial. El uso de radiación solar UV también fue eficiente, eliminando aproximadamente el 70% de la droga después de 60 minutos de tratamiento. Mediante el uso de agua de río en los estudios, se observó un 80% y 54% de eliminación de dipirona usando UV artificial y solar, respectivamente. El análisis de carbono orgánico total (COT) mostró que aproximadamente el 30% de la dipirona de sodio se mineralizó en el mismo período de tiempo (60 min). Como no hubo mineralización total del compuesto inicial, se supone que parte de la dipirona generó subproductos, que no fueron objeto de estudio en este trabajo. As estações de tratamento de esgoto (ETE) e estações de tratamento de água (ETA) visam à retirada da carga orgânica. A remoção de outros tipos de compostos, tais como os contaminantes emergentes que se encontram em concentrações traço (da ordem de µg L-1 a ng L-1), ainda é deficitária. Com isso, novas alternativas de tratamentos estão sendo investigadas e, portanto, o trabalho proposto teve por objetivo, avaliar a remoção da dipirona sódica em meio aquoso, através do processo de fotocatálise heterogênea, utilizando dióxido de titânio (TiO2) como semicondutor, empregando radiação ultravioleta artificial e/ou solar, com acompanhamento por meio de espectroscopia UV-Visível. O estudo da degradação foi realizado em duas matrizes (água ultrapura e água de rio) e para o monitoramento da degradação da dipirona sódica utilizou-se o espectrômetro UV-Visível em comprimento de onda de 258 nm. Os resultados indicaram que foi possível remover em 80% a dipirona sódica (20 mg L-1), após o período de 60 minutos, empregando 75 mg L-1 de TiO2, sob aeração constante e irradiação UV artificial. O emprego de radiação UV solar também se mostrou eficiente, removendo cerca de 70% do fármaco após 60 minutos de tratamento. Ao se empregar a água de rio nos estudos, observou-se a remoção de 80% e 54% da dipirona usando UV artificial e solar, respectivamente. A análise de carbono orgânico total (COT) mostrou que aproximadamente 30% da dipirona sódica foi mineralizado no mesmo intervalo de tempo (60 min). Como não houve a mineralização total do composto inicial, supõem-se que parte da dipirona tenha gerado subprodutos, os quais não foram o alvo de estudo neste trabalho.Research, Society and Development2020-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/164610.33448/rsd-v9i1.1646Research, Society and Development; Vol. 9 No. 1; e73911646Research, Society and Development; Vol. 9 Núm. 1; e73911646Research, Society and Development; v. 9 n. 1; e739116462525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIporhttps://rsdjournal.org/index.php/rsd/article/view/1646/1458Copyright (c) 2019 Sávia Del Vale Terra, Bianca Veloso Goulart, Patrícia Fagundes, Denis Silva Nadaleti, Márcia Matiko Kondoinfo:eu-repo/semantics/openAccessTerra, Sávia Del ValeGoulart, Bianca VelosoFagundes, Patrícia Maralyne Lopes LisboaNadaleti, Denis Henrique SilvaKondo, Márcia Matiko2020-08-19T03:04:08Zoai:ojs.pkp.sfu.ca:article/1646Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:26:35.065489Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false |
dc.title.none.fl_str_mv |
Photodegradation of dipyrone by heterogeneous catalysis using TiO2/UV Fotodegradación de dipirona por catálisis heterogénea usando TiO2/UV Fotodegradação de dipirona por catálise heterogênea empregando TiO2/UV |
title |
Photodegradation of dipyrone by heterogeneous catalysis using TiO2/UV |
spellingShingle |
Photodegradation of dipyrone by heterogeneous catalysis using TiO2/UV Terra, Sávia Del Vale Contaminantes emergentes dipirona de sodio procesos oxidativos avanzados radiación UV. Contaminantes emergentes dipirona sódica processos oxidativos avançados radiação UV. Emerging contaminants sodium dipyrone advanced oxidative processes Uv radiation. |
title_short |
Photodegradation of dipyrone by heterogeneous catalysis using TiO2/UV |
title_full |
Photodegradation of dipyrone by heterogeneous catalysis using TiO2/UV |
title_fullStr |
Photodegradation of dipyrone by heterogeneous catalysis using TiO2/UV |
title_full_unstemmed |
Photodegradation of dipyrone by heterogeneous catalysis using TiO2/UV |
title_sort |
Photodegradation of dipyrone by heterogeneous catalysis using TiO2/UV |
author |
Terra, Sávia Del Vale |
author_facet |
Terra, Sávia Del Vale Goulart, Bianca Veloso Fagundes, Patrícia Maralyne Lopes Lisboa Nadaleti, Denis Henrique Silva Kondo, Márcia Matiko |
author_role |
author |
author2 |
Goulart, Bianca Veloso Fagundes, Patrícia Maralyne Lopes Lisboa Nadaleti, Denis Henrique Silva Kondo, Márcia Matiko |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Terra, Sávia Del Vale Goulart, Bianca Veloso Fagundes, Patrícia Maralyne Lopes Lisboa Nadaleti, Denis Henrique Silva Kondo, Márcia Matiko |
dc.subject.por.fl_str_mv |
Contaminantes emergentes dipirona de sodio procesos oxidativos avanzados radiación UV. Contaminantes emergentes dipirona sódica processos oxidativos avançados radiação UV. Emerging contaminants sodium dipyrone advanced oxidative processes Uv radiation. |
topic |
Contaminantes emergentes dipirona de sodio procesos oxidativos avanzados radiación UV. Contaminantes emergentes dipirona sódica processos oxidativos avançados radiação UV. Emerging contaminants sodium dipyrone advanced oxidative processes Uv radiation. |
description |
The main goal of the water and wastewater treatment plants is to remove the organic load. The removal of other types of compounds, such as the emerging contaminants, usually found in trace order concentrations (µg L-1 to ng L-1) is not efficient. Thus, new treatment alternatives are being investigated and, therefore, the proposed work aimed to evaluate the removal of sodium dipyrone in aqueous medium, through the heterogeneous photocatalysis process, using titanium dioxide (TiO2) as a semiconductor, employing radiation. artificial and / or solar ultraviolet, monitored by UV-Visible spectroscopy. The degradation study was performed using two different water sources (ultrapure and river water). The sodium dipyrone concentration was monitored using UV-Visible spectrometer at 258 nm of wavelength. The results indicated that using 75 mg L-1 TiO2/UV process, 80% of the sodium dipyrone (20 mg L-1) was removed after 60 minutes of irradiation. The TiO2/solar UV radiation was also efficient, removing 70% of the drug after 60 minutes of treatment. By using river water as the contaminated medium, 80% and 54% of dipyrone was removed using artificial and solar UV, respectively. Total organic carbon (TOC) analysis showed that approximately 30% of sodium dipyrone was mineralized in the same time period (60 min). The total mineralization od dipyrone was not observed probably due to the generation of degradation, which were not the main objective of study in the present work. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/1646 10.33448/rsd-v9i1.1646 |
url |
https://rsdjournal.org/index.php/rsd/article/view/1646 |
identifier_str_mv |
10.33448/rsd-v9i1.1646 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/1646/1458 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Research, Society and Development |
publisher.none.fl_str_mv |
Research, Society and Development |
dc.source.none.fl_str_mv |
Research, Society and Development; Vol. 9 No. 1; e73911646 Research, Society and Development; Vol. 9 Núm. 1; e73911646 Research, Society and Development; v. 9 n. 1; e73911646 2525-3409 reponame:Research, Society and Development instname:Universidade Federal de Itajubá (UNIFEI) instacron:UNIFEI |
instname_str |
Universidade Federal de Itajubá (UNIFEI) |
instacron_str |
UNIFEI |
institution |
UNIFEI |
reponame_str |
Research, Society and Development |
collection |
Research, Society and Development |
repository.name.fl_str_mv |
Research, Society and Development - Universidade Federal de Itajubá (UNIFEI) |
repository.mail.fl_str_mv |
rsd.articles@gmail.com |
_version_ |
1797052644621025280 |