Adsorption of Corncob Hydrolysis Residue on Cr (VI)

Corncob hydrolysis residue was milled into powder and the fraction between 100-120 mesh was used as adsorbent for Cr (VI) ion. Results showed that the optimum adsorbing condition was: pH 1-2, 120 minutes, 80°C. Effects of particle size on adsorbing ability of corncob residue were alse investigated. Particles with smaller diameter had stronger adsorbing capacity and the proper particle size was 100-120mesh, the adsorbing capacity of corncob hydrolysis residue was 10-17mg/g.