期刊名称：International Journal of Environment and Bioenergy
电子版ISSN：2165-8951
出版年度：2012
卷号：4
期号：3
页码：131-140
语种：English
出版社：Modern Scientific Press
摘要：This study explores the potential of corn cob powder for adsorption of Cr(VI) in aqueous solution. Effects of adsorbent dosage, pH, temperature, contact time and Cr(VI) concentration were investigated. Maximum adsorption was observed at 80 ℃ under acidic condition of pH 4 with a contact time of 120 min. The percentage removal efficiency was more than 90% at lower initial Cr(VI) concentrations. Both Langmuir and Freundlich adsorption isotherms fitted reasonably well with the data and showed high correlation coefficient (R~2 ) values of 0.999 and 0.991, respectively. Based on this, the adsorbent can be used as a low cost alternative in biosorption of wastewaters containing lower concentrations of Cr(VI).
