ADSORPTION ACTIVITY OF BENTONITE CLAYS TOWARD DYES
DOI:
https://doi.org/10.61151/stjniet.v11i1.947Keywords:
Bentonite, adsorption, dyes, wastewater treatment, sorption capacity, clay minerals, isotherms, kinetics, ion exchange, surface modification, environmental protection, aluminosilicates, textile effluents, pH influence, adsorption mechanismAbstract
This study examines the adsorption activity of bentonite clays toward various synthetic dyes in aqueous solutions. Bentonite, a naturally occurring aluminosilicate material with a layered structure and high specific surface area, demonstrates significant potential as an efficient and low-cost adsorbent for wastewater treatment. The adsorption capacity of bentonite depends on factors such as pH of the medium, initial dye concentration, contact time, temperature, and surface modification of the clay. Experimental results indicate that bentonite effectively removes both cationic and anionic dyes due to ion exchange, electrostatic interactions, and surface complexation mechanisms. The adsorption process was evaluated using equilibrium isotherm models and kinetic studies to determine the efficiency and mechanism of dye removal. The findings confirm that bentonite is a promising material for environmental purification technologies and can be applied in industrial wastewater treatment systems to reduce pollution caused by textile and chemical industries
