Effective application of citric acid treated Trapa natans and Citrullus lanatus lignocellulosic macromolecules for adsorptive remediation of acid Violet-7 dye

Comparative study on efficiency of surface enhanced coal fly ash and raw coal fly ash for the removal of hazardous dyes in wastewater: optimization through response surface methodology

“…Instead of these techniques, adsorption methods can be applicable on a large scale with minimum cost and at low adsorbent ratios. 21,22 Adsorption is a promising and widely used technique for the removal of coloured substances from wastewater. As it is environment friendly, efficient, simple, and cost-effective technique.…”