However,
few studies have been conducted on industrial wastewater and none
on wastewater from the textile industry; this water is typically characterized
by the presence of residues from colorants and chemicals
used in the dyeing and finishing of the fabrics. The treatment of this
wastewater is an environmental problem, since many colorants and
textile additives are toxic; physical, chemical, and biological treatment
processes can be applied to remove wastewater dyes. Biological
processes have been considered as effective alternatives for the treatment
of colored effluent; one of these processes is activated sludge