Autor segons l'article: Demir-Duz, Hande; Ayyildiz, Ozgul; Akturk, Ali Sinan; Alvarez, Mayra G; Contreras, Sandra
Departament: Enginyeria Química
Autor/s de la URV: Contreras Iglesias, Sandra / GARCÍA ALVAREZ, MAYRA
Paraules clau: Solar-assisted aops Refinery wastewater Photo-fenton Photo-catalysis
Resum: To undertake a better water management in Oil&Gas sector, it is essential to decrease the wastewater generation by increasing the current reused water rates. Focused on this motivation, this study presents the performances of solar-assisted photo-Fenton and heterogeneous photo-catalysis on refinery wastewater treatment for reuse purposes with the aim of zero discharge. While initial tests were made on synthetic refinery wastewater, real case studies were performed with two types of refinery effluent in order to test the feasibility of using AOPs either as a secondary or tertiary treatment. Even though heterogeneous photo-catalysis and a combined process showed promising results for the treatment of the refinery effluents, photo-Fenton treatment revealed a superior effectiveness for application in both secondary and tertiary treatment, considering the improvements on TOC removal, toxicity and biodegradability. Photo-Fenton as secondary treatment resulted as efficient as the biological treatment, reaching final TOC values ca. 20 mg/L and 88% of COD removal presenting values lower than those achieved after the biological treatment. Moreover, a marked increase in the BOD5/COD ratio from 0.38 to 0.83 was obtained. Furthermore, as a tertiary treatment, photo-Fenton process either with H2O2/COD=10 and H2O2/Fe2+=50 or H2O2/COD=4 and H2O2/Fe2+=10 provided a final TOC value<4 mg/L. This result reveals the possibility to reuse the effluent in the refinery plant, thus increasing the sustainability.
Àrees temàtiques: Química Process chemistry and technology Medicina ii Materiais Interdisciplinar Geociências General environmental science Farmacia Environmental science (miscellaneous) Environmental science (all) Engineering, environmental Engineering, chemical Engenharias iv Engenharias iii Engenharias ii Engenharias i Ciências biológicas i Ciências ambientais Ciências agrárias i Ciência de alimentos Chemistry, physical Catalysis Biotecnología Astronomia / física
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 18733883
Adreça de correu electrònic de l'autor: sandra.contreras@urv.cat
Identificador de l'autor: 0000-0001-8917-4733
Data d'alta del registre: 2024-10-12
Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
Enllaç font original: https://www.sciencedirect.com/science/article/pii/S0926337319301365
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: Applied Catalysis B-Environmental. 248 341-348
Referència de l'ítem segons les normes APA: Demir-Duz, Hande; Ayyildiz, Ozgul; Akturk, Ali Sinan; Alvarez, Mayra G; Contreras, Sandra (2019). Approaching zero discharge concept in refineries by solar-assisted photo-Fenton and photo-catalysis processes. Applied Catalysis B-Environmental, 248(), 341-348. DOI: 10.1016/j.apcatb.2019.02.026
DOI de l'article: 10.1016/j.apcatb.2019.02.026
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2019
Tipus de publicació: Journal Publications