Characterization of activated carbon Prepared from sludge paper for methylene blue adsorption

The activated carbon prepared from paper sludge was performed using various activating agents. in this study,the chemical activation of paper sludge was carried out using k2co3. the effect of preparation condition on the produced activated carbon characteristics as an adsorbent was investigated. the results showed that the surface area at the experimental conditions is achieved to 908 m2g-1. in addition to these advantages of preparation,the porous properties of activated carbon are excellent because of the well-developed micro-pore. the adsorption behavior of methylene blue dye from aqueous solution onto activated carbon was investigated as a function of equilibrium time,ph and concentration. the adsorption isotherm data were fitted to two adsorption isotherm models and found to closely fit the freundlich model with r2 equal 0.99 at ph 8,indicating a multilayer of adsorption. the maximum retention capacity of the produced activated carbon was 280 mg/g adsorbent and was obtained at this ph value. the obtained results show that paper sludge is a promising low cost precursor for the production of activated carbon. © 2017,university of mohammed premier oujda morocco.