Application of biological oxidation and solar driven advanced oxidation processes to remediation of winery wastewater

• Tipo: Artigo em Revista Científica Internacional
• Data: 2013

Autores

Bruno S. Souza (Autor) Outra; Francisca C. Moreira (Autor) FEUP; Márcia W. C. Dezotti (Autor) Outra; Vítor J. P. Vilar (Autor) FEUP; Rui A. R. Boaventura (Autor) FEUP

Revista

Título: Catalysis Today

Vol. 209

Páginas: 201-208

ISSN: 0920-5861

Editora: Elsevier

Indexação

ISI Web of Knowledge - 52 Citações

ISI Web of Science

Scopus - 59 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias

CORDIS: Ciências Tecnológicas

Projetos Associados

LA 20 - Projeto Estratégico-LA 20 - 2011-2012

Outras Informações

ID Authenticus: P-005-00H

DOI: 10.1016/j.cattod.2012.08.037

Abstract (EN): Biological oxidation and solar driven advanced oxidation processes (AOPs) applied as a single stages were tested at a pilot plant equipped with an immobilized biological reactor (IBR) and a photocatalytic system with compound parabolic collectors (CPCs) for the remediation of a winery wastewater (DOCaverage = 882 mg L-1; pH 4.1). Due to the variable nature of winery wastewater composition and quantity, the application of AOPs as a single or as preliminary stage can be an effective alternative to only conventional biological treatment. Regarding the AOPs systems tested (TiO2/H2O2/UV and Fe2+/H2O2/UV), the solar photo-Fenton reaction (optimized at pH 2.8 and 55 mg Fe2+ L-1) showed the highest efficiency, being necessary an UV dose of 100 kJUV L-1 and 338 mM H2O2 (15 mg H2O2 mg C-1) to achieve a COD value lower than 150 mg O-2 L-1, which is agreement with the discharge limits into receiving waters imposed by the Portuguese Legislation (Decree-law n. 236/98). To achieve the same COD target value using only the IBR system or the combination of solar-photo-Fenton (22 kJUV L- (1); 80 mM H2O2 consumed) and biological systems, approximately 10 and 6 days (time necessary for the biological oxidation) are required. The efficiency of the AOPs in the treatment of simulated and real winery wastewaters was also compared.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8