The current study investigates the potential use of Algerian clay as an adsorbent for the elimination of Crystal Violet (CV) dye. Mchouneche Clay (MC) has been introduced as a low-cost biosorbent for batch manner removal of CV. Essential criteria were examined to determine the optimal conditions. In addition, several kinetic and isothermal models were fitted with experimentally obtained data. The uptake of CV correlated with the initial pH, due to the ionic nature of CV and the mineral surface of MC. Indeed, the adsorption behavior was found to depend on the initial concentration of CV as the number of collisions increased. The analytical study revealed that Pseudo-Second Order (PSO) is the most suitable fitting model. The isothermal study has also shown that the results are consistent with the Langmuir model. The thermodynamic investigation has shown that the adsorption phenomenon is feasible, spontaneous, and endothermic.

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