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The aim of this study was the optimisation of the activated carbon (C) production process by dehydration-carbonisation using concentrated sulfuric acid (H2SO4) from hazelnut shells found locally and readily available agricultural waste and the adsorption of chromium (III) (Cr3) on the activated carbon produced by this method. An adsorption experiment was carried out at conditions of 25 degrees C and initial concentration of 30 mg chromium (III)/l. The optimum process conditions for ensuring maximum adsorption capacity were investigated by means of statistically designed experiments and steepes ...More