ADSORPTION ACTIVATED CARBON 1 AQUEOUS-SOLUTION 1 Activated carbon 1 CATALYST 1 CELLULOSE 1 CHEMICAL ACTIVATION 1 CHITOSAN 1 COMPOSITES 1 Chemical treatment 1 DEGRADATION 1 DYE 1 EFFICIENT 1 Impregnation ratio 1 LOTUS STALK 1 MILL WASTE-WATER 1 NANOPARTICLES 1 Olive stone 1 PHYSICAL ACTIVATION 1 PYROLYSIS KINETICS 1 REMOVAL 1 SOLID-WASTE 1 SURFACE-CHEMISTRY 1 TGA-MS 1 dye adsorption 1 flexible foam 1 iron silica 1 methylene blue 1 palm oil 1 polyurethane 1