Optimization of Adsorption Performance of an Industrial Dye on Waste Mint by the Design of Experiments Method - Composite Centered Plan

Fatima Khammour, Laila Laasri, Abdelkebir Kenz, Tarik Ainane, Mhamed Elkouali, Samia Yousfi, Mohammed Talbi

Abstract: This work aims to optimize the adsorption performance of an industrial dye on waste mint realizing an optimization approach based on composite experimental design centered. Two influencing factors of the adsorption process were selected The initial concentration of the adsorbate and the adsorbent mass. Then these factors were optimized using statistical and mathematical tools of a second degree polynomial model regression analysis, canonical analysis, graphical representation of curves isoresponse and response surfaces, to lead to the selection of optimal conditions pH = 7.1, Stirring time = 120 min, low initial concentration of the adsorbate and strong adsorbent mass.

Keywords: Optimization, composite centered plan, methodology surfaces response, waste mint, methylene blue