Treatment of cork boiling wastewater using chemical oxidation and biodegradation

• Tipo: Artigo em Revista Científica Internacional
• Data: 2006

Autores

Manuela Dias Machado (Autor) Outra; Luis M Madeira (Autor) FEUP; Balbina Nogales (Autor) Outra; Olga C Nunes (Autor) FEUP; Celia M Manaia (Autor) Outra

Revista

Título: Chemosphere

Vol. 64 Nº 3

Páginas: 455-461

ISSN: 0045-6535

Editora: Elsevier

Indexação

ISI Web of Knowledge - 29 Citações

ISI Web of Science

Scopus - 37 Citações

Classificação Científica

CORDIS: Ciências Naturais

FOS: Ciências exactas e naturais > Ciências da terra e ciências do ambiente

Outras Informações

ID Authenticus: P-004-KB1

DOI: 10.1016/j.chemosphere.2005.11.067

Abstract (EN): Three cultures were enriched from cork boiling wastewater using tannic acid as the selective carbon substrate, at 25 degrees C and pH 7.2, 25 degrees C and pH 4.7 and 50 degrees C and pH 4.7. The enrichment culture obtained at neutral pH was composed of five culturable, isolates, whereas from each acidic enrichment two bacterial strains were isolated. Mesophilic isolates were Gram negative bacteria belonging to the genera Klebsiella, Pseudomonas, Stenotrophomonas and Burkholderia. Thermophilic isolates were members of the genus Bacillus. Despite the capability of the enrichment cultures to use tannic acid as single carbon and energy source, those cultures were unable to reduce the total polyphenols or the total organic carbon content of cork boiling wastewater. In order to increase the bioavailability of the organic carbon in cork boiling wastewater, biodegradation was preceded by Fenton oxidation. It was demonstrated that the combined process, using small amounts of Fenton reagents and biodegradative inoculum added almost simultaneously to cork boiling wastewater, leads to TOC reductions of more than 90%.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 7