Recycling of textile bleaching effluents for dyeing using immobilized catalase

• Tipo: Artigo em Revista Científica Internacional
• Data: 2002

Autores

Costa, SA (Autor) Outra; Tzanov, T (Autor) Outra; Carneiro, F (Autor) Outra; Gubitz, GM (Autor) Outra; Cavaco Paulo, A (Autor) Outra

Revista

Título: Biotechnology Letters

Vol. 24

Páginas: 173-176

ISSN: 0141-5492

Editora: Springer Nature

Indexação

ISI Web of Knowledge - 23 Citações

Scopus - 30 Citações

Outras Informações

ID Authenticus: P-000-QBW

DOI: 10.1023/a:1014136703369

Abstract (EN): Catalase was immobilized on alumina carrier and crosslinked with glutaraldehyde. Storing stability, temperature and pH profiles of enzyme activity were studied in a column reactor with recirculation and in a batch stirred-tank reactor. The immobilized enzyme retained 44% of its activity at pH 11, 30 degreesC and 90% at 80 degreesC, pH 7. The half-life time of the immobilized catalase was increased to 2 h at pH 12, and 60 degreesC. Acceptable results were achieved when the residual water from the washing process of H2O2-bleached fabrics was treated with the immobilized enzyme and then reused for dyeing.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 4