Biodegradation and biosorption of acid anthraquinone dye

Gavin Walker, L.R. Weatherley

Research output: Contribution to journalArticlepeer-review

89 Citations (Scopus)

Abstract

The acid anthraquinone dye Tectilon Blue (TB4R) is a major coloured component from the aqueous effluent of a carpet printing plant in Northern Ireland. The aerobic biodegradation of TB4R has been investigated experimentally in batch systems, using three strains of bacteria, namely, Bacillus gordonae (NCIMB 12553), Bacillus benzeovorans (NCIMB 12555) and Pseudomonas putida (NCIMB 9776). All three strains successfully decolourised the dye, and results were correlated using Michaelis-Menten kinetic theory. A recalculation of the reaction rate constants, to account for biosorption, gave an accurate simulation of the colour removal over a 24-h period. Up to 19% of the decolorisation was found to be caused by biosorption of the dye onto the biomass, with the majority of the decolorisation caused by utilisation of the dye by the bacteria. The reaction rate was found to be intermediate between zero and first order at dye concentrations of 200-1000 mg/l. (C) 2000 Elsevier Science Ltd. All rights reserved.
Original languageEnglish
Pages (from-to)219-223
Number of pages5
JournalEnvironmental Pollution
Volume108
Issue number2
Publication statusPublished - May 2000

ASJC Scopus subject areas

  • Environmental Science(all)
  • Environmental Chemistry
  • Pollution

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