Decontamination of cork wastewaters by solar-photo-Fenton process using bleaching wastewater as H2O2 source

• Tipo: Artigo em Revista Científica Internacional
• Data: 2011

Autores

Ariana M. A. Pintor (Autor) Outra; Vitor J. P. Vilar (Autor) FEUP; Rui A. R. Boaventura (Autor) FEUP

Revista

Título: Solar Energy

Vol. 85 Nº 3

Páginas: 579-587

ISSN: 0038-092X

Editora: Elsevier

Indexação

ISI Proceedings

ISI Web of Science

Scopus

INSPEC

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia do ambiente

CORDIS: Ciências Tecnológicas > Tecnologia > Tecnologia ambiental

Projetos Associados

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

Outras Informações

DOI: 10.1016/j.solener.2011.01.003

Abstract (EN): This paper reports on a treatment strategy of cork wastewaters through the design of a solar-photo-Fenton process using cork bleaching wastewater as hydrogen peroxide (H2O2) source, as a pre-oxidation step, before a conventional biological oxidation process. This method proved to be efficient, achieving mineralization rates higher than 90% for different iron concentrations (20¿80 mg Fe L1 ). Higher iron concentrations resulted in the lower energy consumption and 60 mg Fe L1 was selected as the optimum dose for 91% mineralization and used for biodegradability studies. According to the Zahn¿Wellens test, the optimum phototreatment energy to achieve a biodegradable effluent is 13.6 kJUV L1 (65% mineralization), which corresponds to H2O2 consumption of 76.1 mM (approximately 8.5 L of cork bleaching wastewater (at 7.7 g H2O2 L1 ) for 15 L of cork boiling wastewater).

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 9