The effectiveness of a biological treatment with Rhizopus oryzae and of a photo-Fenton oxidation in the mitigation of toxicity of a bleached kraft pulp mill effluent

• Tipo: Artigo em Revista Científica Internacional
• Data: 2009

Autores

Pereira, R (Autor) Outra; Antunes, SC (Autor) Outra; Goncalves, AMM (Autor) Outra; Marques, SM (Autor) Outra; Goncalves, F (Autor) Outra; Ferreira, F (Autor) Outra; Freitas, AC (Autor) Outra; Rocha Santos, TAP (Autor) Outra; Diniz, MS (Autor) Outra; Castro, L (Autor) Outra; Peres, I (Autor) Outra; Duarte, AC (Autor) Outra

Revista

Título: Water Research

Vol. 43

Páginas: 2471-2480

ISSN: 0043-1354

Editora: Elsevier

Indexação

ISI Web of Knowledge - 21 Citações

Scopus - 25 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia do ambiente

Outras Informações

ID Authenticus: P-003-KPC

DOI: 10.1016/j.watres.2009.03.013

Abstract (EN): Huge efforts have been made both in adopting more environmental-friendly bleaching processes, and in developing advanced oxidation processes and more effective biological treatments for the reduction of deleterious impacts of paper mill effluents. Even so, the success of such treatments is frequently reported in terms of chemical parameters without a proper evaluation of the effluent's toxicity mitigation. This is the first study reporting an exhaustive evaluation of the toxicity of a secondary bleached kraft pulp mill effluent, after either tertiary treatment with the soft-rot fungi Rhizopus oryzae or with a photo-Fenton oxidation, using a battery of freshwater species. As it has been reported the photo-Fenton/UV treatment has proved to be the most effective in reducing the colour and the COD (chemical oxygen demand) of the effluent. Nevertheless, extremely low EC(50) values were reported for almost all species, after this tertiary treatment. The treatment with R. oryzae was less effective in terms of colour removal and COD reduction, but proved to be the most promising in reducing toxicity.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 10