Abstract
Dyes are a major class of organic compounds which find a multitude of applications in human life. The dyes belong to mostly synthetic organics and are toxic, nonbiodegradable, and resistant to direct degradation by sunlight and, therefore, they remain as persistent pollutants. The removal of these nonbiodegradable organic chemicals from the environment is a crucial ecological problem. Some common techniques, such as adsorption using activated carbon, flocculation, electrocoagulation, UV light degradation, and redox treatments, are being routinely used for abating dyes. In the present scenario, due to the incompetence of the techniques in one way or the other, there is requirement of improved wastewater treatment measures.
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