Decolorization of textile dyestuff Reactive Orange 16 in fed-batch reactor under anaerobic condition


Kapdan İ., Oztekin R.

ENZYME AND MICROBIAL TECHNOLOGY, vol.33, no.2-3, pp.231-235, 2003 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 33 Issue: 2-3
  • Publication Date: 2003
  • Doi Number: 10.1016/s0141-0229(03)00128-5
  • Journal Name: ENZYME AND MICROBIAL TECHNOLOGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.231-235
  • Keywords: anaerobic treatment, decolorization, fed-batch reactor, textile dyestuff, AZO DYES, PHANEROCHAETE-CHRYSOSPORIUM, WASTE-WATER, EFFLUENT, BIODEGRADATION, CONSORTIUM, REDUCTION, CULTURES, DIAZO, TESTS
  • Dokuz Eylül University Affiliated: Yes

Abstract

Biological decolorization of textile dyestuff Reactive Orange 16 was investigated in a fed-batch reactor by using facultative anaerobic bacterial consortium called PDW. Effects of different operating parameters like flow rate (Q = 50-300 ml/h), dyestuff concentration (50-600 mg/l) and yeast extract concentration (1-5 g/l) on decolorization efficiency were studied. Reaction cycle was varied between 2 and 7 h depending on the feeding rate. System was operated at room temperature (T = 19 +/- 1 degreesC) and at pH = 7. The experimental results indicated that over 90% efficiency can be obtained up to 350 mg/l dyestuff concentration and 200ml/h feeding rate. Three grams per liter yeast extract concentration as sole carbon source was enough to obtain around 95% color removal. (C) 2003 Elsevier Inc. All rights reserved.