The purpose of this study was to investigate the feasibility of simultaneous optimization and removal of dyes, Malachite green (MG), Rhodamine B (RhB) and Cresol Red (CR) from aqueous solutions by using Sistan sand as an extremely low cost adsorbent. Factors affecting adsorption of the analytes on the sorbent were investigated experi‑ mentally and by using Taguchi and Plackett–Burman experimental design methods. | Simultaneous elimination of Malachite Green Rhodamine B and Cresol Red from aqueous sample with Sistan sand optimized by Taguchi L16 and Plackett Burman experiment design methods
