Remediation of Groundwater Containing Gentian Violet Dye Using Hydrogel

The contamination of groundwater by synthetic dyes, particularly Gentian Violet, poses significant environmental and health risks. This study explores the efficacy of hydrogel-based adsorbents for the removal of Gentian Violet dye from aqueous solutions. The adsorption process was meticulously evaluated under varying parameters including pH, contact time, initial dye concentration, and temperature. Kinetic and isothermal models were employed to analyze the adsorption behavior. Results demonstrated that the hydrogels effectively removed up to 94% of Gentian Violet dye within optimal conditions, exhibiting a rapid uptake in the initial stages of adsorption. The adsorption data aligned well with the Langmuir isotherm model with value of (0.9777) indicating monolayer adsorption on a surface with a finite number of identical sites. Kinetic studies followed a pseudo-second-order model with values of (2.891 to 6.876) in removal concentration at equilibrium and relative coefficient (9.660), suggesting that the adsorption process is largely chemisorption. This study highlights the potential of hydrogel materials as a sustainable solution for the remediation of dye-contaminated groundwater, contributing to the development of environmentally friendly technologies for water treatment. Further research is suggested to explore scalability and long-term effectiveness in field conditions.