Departament: Enginyeria Química
Autor/s de la URV: Hande Demir-Duz, Ozgul Ayyildiz , Ali Sinan Aktürk , Mayra G. Álvarez, Sandra Contreras
Codi de projecte: 688989-2
Paraules clau: Solar-assisted AOPs; Photo-Fenton; Photo-catalysis; Refinery wastewater
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.
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
Data d'alta del registre: 2019-05-30
Pàgina final: 348
Volum de revista: 248
Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
Enllaç font original: https://www.sciencedirect.com/science/article/pii/S0926337319301365
Programa de finançament: HORIZON 2020
Referència a l'article segons font original: Applied Catalysis B: Environmental
Referència de l'ítem segons les normes APA: Demir-Duz, H., Ayyildiz, O., Aktürk, A.S., G. Álvarez, M., Contreras, S. Approaching zero discharge concept in refineries by solar-assisted photo-Fenton and photo-catalysis processes. Applied Catalysis B: Environmental 248 (2019) 341-348
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
DOI de l'article: 10.1016/j.apcatb.2019.02.026
Any de publicació de la revista: 2019
Acció del programa de finançament: INTEGROIL
Pàgina inicial: 341
Repositori URV