Abstract
A modified sugarcane bagasse (SCB) fixed bed column was used to remove Pb2+ from aqueous solution. To determine the optimal condition for Pb2+ separation, Ca2+ was chosen as the model interfering ion, and effects of Ca2+ and Pb2+ initial concentration ratio (C Ca0 : C Pb0 ) on the adsorption of Pb2+ were investigated. Results showed that adsorption amount ratio of Ca2+ and Pb2+ (q Ca e : q Pb e ) had a good linear relationship with C Ca0 : C Pb0 . Mass ratio of Pb2+ absorbed on the modified SCB was higher than 95% at C Ca0 : C Pb0 <1.95, illustrating that Pb2+ could be selectively removed from aqueous solution. To verify that, simulated waste water containing co-ions of K+, Na+, Cd2+ and Ca2+ was treated, and results showed that the equilibrium amount of Pb2+, K+, Na+, Cd2+ and Ca2+ adsorbed was 134.14, 0.083, 0.058, 1.28, and 1.28mg g−1, respectively, demonstrating that the modified SCB could be used to remove Pb2+ from aqueous solution in the investigated range.
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Zhu, J., Yu, Jx., Chen, Jd. et al. Effects of co-ion initial concentration ratio on removal of Pb2+ from aqueous solution by modified sugarcane bagasse. Korean J. Chem. Eng. 34, 1721–1727 (2017). https://doi.org/10.1007/s11814-017-0061-x
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DOI: https://doi.org/10.1007/s11814-017-0061-x