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

• Autorzy: Martins, Ramiro José Espinheira , Tesuka, Leticia Harumi , Grabowski, Thais Theomaris

Warianty tytułu

PL

Oczyszczanie ścieków z wytłoczyn z oliwek poprzez elektrokoagulację peroksydacyjną z wykorzystaniem arkuszy aluminiowych

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

PL

oczyszczanie; oliwa z wytłoków z oliwek; ścieki; peroksy-elektrokoagulacja; blachy aluminiowe

EN

treatment; pomace olive oil; wastewater; peroxy-electrocoagulation; aluminium sheets

• Czasopismo: Inżynieria Mineralna
• Rocznik: 2024
• Tom: Vol. 1, no. 1
• Strony: 741--747
• Opis fizyczny: Bibliogr. 7 poz., rys., tab.

Twórcy

autor

Martins, Ramiro José Espinheira

• Technology and Management School, Polytechnic Institute of Bragança, 5300-253, Bragança, Portugal,
• LSRE-LCM Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal
• ALICE - Associate Laboratory in Chemical Engineering, FEUP, Porto, Portugal

autor

Tesuka, Leticia Harumi

• Technology and Management School, Polytechnic Institute of Bragança, 5300-253, Bragança, Portugal,
• Federal Technological University of Paraná, Campus Medianeira, 85884-000, Paraná, Brazil

autor

Grabowski, Thais Theomaris

• Technology and Management School, Polytechnic Institute of Bragança, 5300-253, Bragança, Portugal,

Bibliografia

• 1. P. S. Moral and M. V. R. Méndez, “Production of pomace olive oil,” Grasas y Aceites, vol. 57, no. 1, pp. 47–55, 2006.
• 2. GPP. (Gabinete de Planejeamento, Políticas e Administração Geral), “SIAZ - Sistema de Informação do Azeite e Azeitona de Mesa,” 2020. gpp.pt.
• 3. L. Skaltsounis, A. Argyropoulou, N. Aligiannis, and N. Xynos, Recovery of High Added Value Compounds from Olive Tree Products and Olive Processing Byproducts. In Olive and Olive Oil Bioactive Constituents (pp. 333–356) (2015). Elsevier Inc. https://doi.org/10.1016/B978-1-63067-041-2.50017-3.
• 4. Y. Esfandyari et al., “Degradation and biodegradability improvement of the olive mill wastewater by peroxi-electrocoagulation/electrooxidation-electroflotation process with bipolar aluminum electrodes,” Environ. Sci. Pollut. Res., vol. 22, no. 8, pp. 6288–6297, 2015, doi: 10.1007/s11356-014-3832-5.
• 5. S. Garcia-Segura, G. Eiband, J. de Melo, and A. Martínez-Huitle, Electrocoagulation and advanced electrocoagulation processes: A general review about the fundamentals, emerging applications and its association with other technologies. In Journal of Electroanalytical Chemistry (Vol. 801, pp. 267–299) (2017). Elsevier B.V. https://doi.org/10.1016/j.jelechem.2017.07.047.
• 6. G. Merma, Eletrocoagulação aplicada a meios aquosos contendo óleo [Pontifícia Universidade Católica do Rio de Janeiro] (2008). https://doi.org/https://doi.org/10.17771/PUCRio.acad.12209.
• 7. Y. Esfandyari, et al., Degradation and biodegradability improvement of the olive mill wastewater by peroxi-electrocoagulation/electrooxidation electroflotation process with bipolar aluminum electrodes. Environmental Science and Pollution Research, 22(8), 6288–6297 (2015). https://doi.org/10.1007/s11356-014- 3832-5.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki i promocja sportu (2025).

Identyfikatory

DOI

10.29227/IM-2024-01-86