Treatment of Pomace Olive Oil Wastewater by Peroxy-Electrocoagulation with Aluminium Sheets

Detalhes bibliográficos
Autor(a) principal: Martins, Ramiro
Data de Publicação: 2024
Outros Autores: Tesuka, Leticia Harumi, Grabowski, Thais Theomaris dos Santos
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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spelling 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
institution 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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