This study reports the feasibility of using modified agricultural and timber industry wastes to remove basic dyes like Methylene Blue (MB) from substitute wastewater. More specifically, Norway Spruce (Picea abies) sawdust has been used as absorbent after autohydrolysis pre-treatment. Autohydrolysis of lignocellulosic materials can be used as a first step while enzymatic or acid hydrolysis is usually used as second step in the bioethanol industry. Autohydrolysis is usually applied as a pretreatment to increase the enzymatic hydrolysis efficiency. Moreover, many industrial byproducts (sawdust, wood-chips) and agricultural residues (corncobs, almond shells, olive stones, rice husks, wheat straw, barley straw) are usually used as feedstock for the production of xylo-oligosaccharides by autohydrolysis.

autohydrolysis, adsorption, dye, isotherms, kinetics, sawdust