Decolourization of synthetic dyes by Trametes hirsuta in expanded-bed reactors |
| |
Authors: | Couto S Rodríguez Rosales E Sanromán M A A |
| |
Affiliation: | Department of Chemical Engineering, University of Vigo, 36200 Vigo, Spain. susana.rodriguez@urv.net |
| |
Abstract: | The present paper studies the decolourization of different synthetic dyes (Indigo Carmine, Bromophenol Blue, Methyl Orange and Poly R-478) by the white-rot fungus Trametes hirsuta at bioreactor scale under solid-state conditions, operating with ground orange peelings as a support-substrate. Dye decolourization was performed in both batch and continuous mode. Batch cultivation led to high decolourization percentages in a short time (100% for Indigo Carmine in 3h and 85% for Bromophenol Blue in 7 h). As for continuous cultivation, different hydraulic retention times (HRT) were studied (0.8, 1, 1.5 and 3d). The highest decolourization percentages were obtained operating at a HRT of 3d, especially for the dyes Methyl Orange and Poly R-478 (81.4% and 46.9%, respectively). This is a very interesting result, since there are few studies dealing with the continuous decolourization of dyes at bioreactor scale by fungal laccases. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|