Departamento: Enginyeria Química

Autor/es de la URV: Hande Demir-Duz, Ozgul Ayyildiz , Ali Sinan Aktürk , Mayra G. Álvarez, Sandra Contreras

Código de proyecto: 688989-2

Palabras clave: Solar-assisted AOPs; Photo-Fenton; Photo-catalysis; Refinery wastewater

Resumen: 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.

Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/

Fecha de alta del registro: 2019-05-30

Página final: 348

Volumen de revista: 248

Versión del articulo depositado: info:eu-repo/semantics/publishedVersion

Enlace a la fuente original: https://www.sciencedirect.com/science/article/pii/S0926337319301365

Programa de financiación: HORIZON 2020

Referencia al articulo segun fuente origial: Applied Catalysis B: Environmental

Referencia 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

DOI del artículo: 10.1016/j.apcatb.2019.02.026

Año de publicación de la revista: 2019

Acción del progama de financiación: INTEGROIL

Página inicial: 341