Abstract
Water has been considered one of the most valuable substances on earth for
almost entire living organisms, from the largest mammal to the smallest
microorganism. In addition, water is essential for the healthy life of human beings,
animals, plants, etc. due to rapid, swift, and advanced industrialization, polluted water
is discharged from different industries on many occasions. Among the different
industrial pollutants, textile dyes and their effluents are the most predominant
pollutants. Nearly 100,000 synthetic dyes are produced, and about one million tons of
dyes are utilized for various dying purposes. About 10% of the dyes are unconfined
into natural resources and the environment as waste, which spoils the aesthetic nature
of the environment. These colored dyes are carcinogenic or mutagenic. These colored
dyes are very fine particles in nature, and their concentrations of about 1 ppm are
visible. These discharged color dyes cause grave intimidations with numerous
problems; hence, these discharged color dyes as industrial waste have been considered
as a major problem in the wastewater treatment process. In this chapter, various
remediation techniques for the degradation of textile dyes effluents are discussed to
maintain the sustainability of the environment.
Keywords: Biological methods, Effluent treatment techniques, Electrochemical Methods, Physical-Chemical methods, Phytoremediation Green Nanotechnology, Textile dye, Azo dye.