Water contamination due to dyes has drawn increased attention. Dyes in water bodies are greatly perceptible and pose tremendous threat to ecosystem. Thus removal of such dye molecules is a matter of concern. In the past various physical and chemical techniques have been employed for the removal of colour from wastewater. However most of these methods have certain drawbacks. Biological treatment is often efficient and economical. Many microorganisms are able to accumulate and degrade different pollutants. Yet even the biological methods have some shortcomings such as toxicity of biodegradation products and more.
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