Recycling of textile bleaching effluents for dyeing using immobilized catalase

• Type: Article in International Scientific Journal
• Date: 2002

Authors

Costa, SA (Author) Other; Tzanov, T (Author) Other; Carneiro, F (Author) Other; Gubitz, GM (Author) Other; Cavaco Paulo, A (Author) Other

Journal

Title: Biotechnology Letters

Vol. 24

Pages: 173-176

ISSN: 0141-5492

Publisher: Springer Nature

Indexing

ISI Web of Knowledge - 23 Citations

Scopus - 30 Citations

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 4