The effect of salts used in textile dyeing on microbial decolourisation of a reactive azo dye

摘要

Azo dyes account for 60 to 70/100 all textile dyestuffs produced and are the most common chromophore of reactive textile dyes. Colouration of textile effluents usually can be linked to the presence of water-soluble (reactive) azo dyes. Under anaerobic conditions azo dyes can be used a sterminal electron acceptors during microbial respiration, being reduced and decolourised concurrently with re-oxidation of reduced flavin nucleotides. Htus, the process of anaerobic digestion is under investigation as an effluent treatment option for the textile industry.