Removal of Reactive Remazol Black B from Contaminated Water by Lignocellulosic Waste of Canola Stalks

In this study the potential of canola stalks to ramove of reactive Remazol Black B from artificial aqueous solution were studied. Adsorption isotherm study using various concentrations showed that the Remazol Black B absorption was well described by both Langmuir and Freundlich isotherms, but Langmuir model with a higher correlation coefficient was better fitted than Freundlich model. Using Langmuir model, the highest adsorption capacity was found 32.8 mg/g. Kinetic study showed that the adsorption of RBB of canola stalks obeyed the pseudo-second order kinetic model. The adsorption capacity of canola stalks was higher than that obtained for other lignocelluloses raw materials, and it could be applied as a cost-effective absorbent for treatment of wastewater containing of Remazol Black B.