ABSTRACT

Water pollution from textile effluent is now one of the major problems all over the world. Treatment of effluent from dye-based industries processes a major problem but biological treatment of bacteria with sawdust seems to be a viable option. Textile and dyestuff industries are major contributors to industrial pollutants – dyes. Azo dye is a key component of textile effluents. A dye is used to impact color to materials of which it becomes an integral part. The amount of azo dyes concentration present in wastewater varied from lowto highconcentration that leads to colored dye effluent causing toxicity to ecosystem.There are various types of physiochemical methods and biological methods that are used for treating textile effluent. Physiochemical methods lack in environment friendly and cost-effective, hence become commercially unattractive. In the biological methods, different taxonomic groups of bacteria, fungi, actinomycetes, and algae have been reported for their ability to decolorize azo dyes. Thus, the biodegradation technique approach will be eco-friendly with no secondary hazard. The factors affecting decolorization anddegradation of azo dye compounds like, pH, temperature, dye concentration, effects of carbon dioxide and nitrogen, agitation, effect of dye structure, electron and enzymes involved in microbial decolorization of dyes have been discussed. The enzyme can be utilized to develop healing processes that are ecofriendly than the conventional techniques. The enzymatic mechanisms involved in the bacterial degradation of azo dyes, are also investigated for toxicity level of the Bacterial decolorization and degradation of azo dyes, and enumerate the role of thisinaction for the treatment of textile dye effluent. Keywords: Azo dyes, degradation, environmental pollution, effluents
Publication date: 01/01/2022

https://ijbpas.com/pdf/2022/January/MS_IJBPAS_2022_5838.pdf

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https://doi.org/10.31032/IJBPAS/2022/11.1.5838