Biodegradation of Azo Dyes from Wastewater

Removal of Direct dyes with Alginic acid

“…Applying the equations (4) and (5) to the experimental isotherm, the Ku and U values can be obtained. By using these values as the starting ones to perform an optimization process, the theoretical parameters of Ku and U that fit with the experimental data for each system are achieved.…”

“…This group of dyes contain in their structure, different functional groups such as azo, sulfonate, amino, nitro, and others that make a wide variety of colors possible. Due to its complex chemical structure, these compounds are difficult to metabolize by organisms encountered in the environment and when transformed through anaerobic treatments, the products generated (aromatic amines) are mutagenic and carcinogenic [3][4][5].…”