The Adsorption Behavior of Aniline in Bamboo-charcoal

The adsorption properties of bamboo-charcoal for aniline solution were studied.Effects of some factors,such as pH and initial concentration of the solution,quantity of bamboo-charcoal,absorbing time,temperature,on the removing of aniline from water solution were investigated.The results show that the bamboo-charcoal has strong adsorption to the aniline.The removal rate can reach 93% or more if the mass ratio of bamboo-charcoal to aniline is 980:1.Meanwhile,the adsorption behavior of bamboo-charcoal can properly adapt to the changing of the initial concentration of aniline when pH value is between 8-9 so it can keep the absorption for aniline in a good level and the absorption will be in balance in 120 minutes.The isothermal adsorption behaviors of the bamboo-charcoal for aniline follows the Freundlich equation.The results also show the adsorption of bamboo-charcoal for aniline is easier at 70℃ with better adsorption effects.The conclusion is that bamboo-charcoal is an ideal absorption material for removing aniline.