Publicação

Recycling of textile bleaching effluents for dyeing using immobilized catalase

Ver documento

Detalhes bibliográficos
Resumo: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 °C and 90% at 80 °C, pH 7. The half-life time of the immobilized catalase was increased to 2 h at pH 12, and 60 °C. 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.
Autores principais:Costa, Silgia
Outros Autores:Tzanov, Tzanko; Carneiro, Ana Filipa Gonçalves da Costa; Gübitz, Georg M.; Paulo, Artur Cavaco
Assunto:catalase immobilization enzyme stabilization H2O2 textile dyeing H O 2 2
Ano:2002
País:Portugal
Tipo de documento:artigo
Tipo de acesso:acesso aberto
Instituição associada:Universidade do Minho
Idioma:inglês
Origem:RepositóriUM - Universidade do Minho

Registos relacionados

Registos relacionados