Treatment of Pomace Olive Oil Wastewater by Peroxy-Electrocoagulation with Aluminium Sheets
Autor(a) principal: | |
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Data de Publicação: | 2024 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10198/29814 |
Resumo: | The extraction of olive pomace oil is a significant aspect of the edible oil industry in Mediterranean regions where olives are widely cultivated. The resulting wastewater generated from this industry is known to harbor pollutants, including residual solvents, oils, and chemicals from the refining process, that can have adverse effects on the environment and public health. Peroxy-electrocoagulation (PEC) is a method that can be used to treat wastewater from the olive pomace oil extraction industry. The purpose of the work was to reduce the concentration of pollutants in the effluent through the use of PEC with aluminum electrodes as a method of treatment. The Box-Behnken Design was used to study the relationship between hydrogen peroxide dosage (10, 20, and 30 g L-1), electric current density (5, 20 and 35 mA cm-2), and the initial pH (2.5, 3.5, and 4.5), in the PEC process, and the removal of chemical oxygen demand (COD) and total phenolic compounds (TPh). The highest removal was obtained with hydrogen peroxide dosage of 30 g L-1, and 20 mA cm-2, and with 29% of TPh removal at pH 2.5, and with 84% COD removal at pH 4.5. The procedure removed an average of 22% COD and 82% TPh. The concentration of hydrogen peroxide was one of the most significant factors in the process. Pre-treatment with other techniques is necessary to reduce harmful elements in the effluent before undergoing biological treatment. |
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Treatment of Pomace Olive Oil Wastewater by Peroxy-Electrocoagulation with Aluminium SheetsTreatmentPomace olive oilWastewaterPeroxy-electrocoagulationAluminium sheetsThe extraction of olive pomace oil is a significant aspect of the edible oil industry in Mediterranean regions where olives are widely cultivated. The resulting wastewater generated from this industry is known to harbor pollutants, including residual solvents, oils, and chemicals from the refining process, that can have adverse effects on the environment and public health. Peroxy-electrocoagulation (PEC) is a method that can be used to treat wastewater from the olive pomace oil extraction industry. The purpose of the work was to reduce the concentration of pollutants in the effluent through the use of PEC with aluminum electrodes as a method of treatment. The Box-Behnken Design was used to study the relationship between hydrogen peroxide dosage (10, 20, and 30 g L-1), electric current density (5, 20 and 35 mA cm-2), and the initial pH (2.5, 3.5, and 4.5), in the PEC process, and the removal of chemical oxygen demand (COD) and total phenolic compounds (TPh). The highest removal was obtained with hydrogen peroxide dosage of 30 g L-1, and 20 mA cm-2, and with 29% of TPh removal at pH 2.5, and with 84% COD removal at pH 4.5. The procedure removed an average of 22% COD and 82% TPh. The concentration of hydrogen peroxide was one of the most significant factors in the process. Pre-treatment with other techniques is necessary to reduce harmful elements in the effluent before undergoing biological treatment.This work was financially supported by: i) Project NORTE-01-0247-FEDER-072124, BagaÇo+Valor - Tecnologia Limpa para a Valorização dos Subprodutos do Bagaço na Indústria Extratora de Azeite, funded by the European Regional Development Fund (ERDF) and ii) LA/P/0045/2020 (ALiCE), UIDB/50020/2020 and UIDP/50020/2020 (LSRE-LCM), funded by national funds through FCT/MCTES (PIDDAC).Polskie Towarzystwo Przeróbki KopalinBiblioteca Digital do IPBMartins, RamiroTesuka, Leticia HarumiGrabowski, Thais Theomaris dos Santos2024-05-24T10:30:20Z20242024-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10198/29814engMartins, Ramiro José Espinheira; Tesuka, Leticia Harumi; Grabowski, Thais Theomaris (2024). Treatment of Pomace Olive Oil Wastewater by Peroxy-Electrocoagulation with Aluminium Sheets. Inzynieria Mineralna. ISSN 1640-4920. 1:1, p. 741-7471640-492010.1007/s11869-024-01504-7info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-10-30T01:22:13Zoai:bibliotecadigital.ipb.pt:10198/29814Portal AgregadorONGhttps://www.rcaap.pt/oai/openairemluisa.alvim@gmail.comopendoar:71602024-10-30T01:22:13Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Treatment of Pomace Olive Oil Wastewater by Peroxy-Electrocoagulation with Aluminium Sheets |
title |
Treatment of Pomace Olive Oil Wastewater by Peroxy-Electrocoagulation with Aluminium Sheets |
spellingShingle |
Treatment of Pomace Olive Oil Wastewater by Peroxy-Electrocoagulation with Aluminium Sheets Martins, Ramiro Treatment Pomace olive oil Wastewater Peroxy-electrocoagulation Aluminium sheets |
title_short |
Treatment of Pomace Olive Oil Wastewater by Peroxy-Electrocoagulation with Aluminium Sheets |
title_full |
Treatment of Pomace Olive Oil Wastewater by Peroxy-Electrocoagulation with Aluminium Sheets |
title_fullStr |
Treatment of Pomace Olive Oil Wastewater by Peroxy-Electrocoagulation with Aluminium Sheets |
title_full_unstemmed |
Treatment of Pomace Olive Oil Wastewater by Peroxy-Electrocoagulation with Aluminium Sheets |
title_sort |
Treatment of Pomace Olive Oil Wastewater by Peroxy-Electrocoagulation with Aluminium Sheets |
author |
Martins, Ramiro |
author_facet |
Martins, Ramiro Tesuka, Leticia Harumi Grabowski, Thais Theomaris dos Santos |
author_role |
author |
author2 |
Tesuka, Leticia Harumi Grabowski, Thais Theomaris dos Santos |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Biblioteca Digital do IPB |
dc.contributor.author.fl_str_mv |
Martins, Ramiro Tesuka, Leticia Harumi Grabowski, Thais Theomaris dos Santos |
dc.subject.por.fl_str_mv |
Treatment Pomace olive oil Wastewater Peroxy-electrocoagulation Aluminium sheets |
topic |
Treatment Pomace olive oil Wastewater Peroxy-electrocoagulation Aluminium sheets |
description |
The extraction of olive pomace oil is a significant aspect of the edible oil industry in Mediterranean regions where olives are widely cultivated. The resulting wastewater generated from this industry is known to harbor pollutants, including residual solvents, oils, and chemicals from the refining process, that can have adverse effects on the environment and public health. Peroxy-electrocoagulation (PEC) is a method that can be used to treat wastewater from the olive pomace oil extraction industry. The purpose of the work was to reduce the concentration of pollutants in the effluent through the use of PEC with aluminum electrodes as a method of treatment. The Box-Behnken Design was used to study the relationship between hydrogen peroxide dosage (10, 20, and 30 g L-1), electric current density (5, 20 and 35 mA cm-2), and the initial pH (2.5, 3.5, and 4.5), in the PEC process, and the removal of chemical oxygen demand (COD) and total phenolic compounds (TPh). The highest removal was obtained with hydrogen peroxide dosage of 30 g L-1, and 20 mA cm-2, and with 29% of TPh removal at pH 2.5, and with 84% COD removal at pH 4.5. The procedure removed an average of 22% COD and 82% TPh. The concentration of hydrogen peroxide was one of the most significant factors in the process. Pre-treatment with other techniques is necessary to reduce harmful elements in the effluent before undergoing biological treatment. |
publishDate |
2024 |
dc.date.none.fl_str_mv |
2024-05-24T10:30:20Z 2024 2024-01-01T00:00:00Z |
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://hdl.handle.net/10198/29814 |
url |
http://hdl.handle.net/10198/29814 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Martins, Ramiro José Espinheira; Tesuka, Leticia Harumi; Grabowski, Thais Theomaris (2024). Treatment of Pomace Olive Oil Wastewater by Peroxy-Electrocoagulation with Aluminium Sheets. Inzynieria Mineralna. ISSN 1640-4920. 1:1, p. 741-747 1640-4920 10.1007/s11869-024-01504-7 |
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 |
Polskie Towarzystwo Przeróbki Kopalin |
publisher.none.fl_str_mv |
Polskie Towarzystwo Przeróbki Kopalin |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
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RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
mluisa.alvim@gmail.com |
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1817546021878628352 |