We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Selective adsorption and recycle of Cu from aqueous solution by modified sugarcane bagasse under dynamic condition.
- Authors
Chen, Jia-dong; Yu, Jun-xia; Wang, Fen; Tang, Jia-qi; Zhang, Yue-fei; Xu, Yuan-lai; Chi, Ru-an
- Abstract
Tetraethylenepentamine modified sugarcane bagasse was prepared and applied to test its feasibility in removing and recovering Cu from wastewater under dynamic condition. Results showed that the Cu could be selectively absorbed from wastewater by the modified SCB fixed bed column. To understand the adsorption mechanism, Cd had been selected as the model interfering ion to investigate how co-ions influence the adsorption of Cu on the sorbent. It was observed that the adsorption capacity of the sorbent for Cu (0.26 mmol g) was significantly higher than that of Cd (0.03 mmol g), even when the Cd initial concentration was 100 times higher than that of Cu in the binary system. This finding indicated that the presence of Cd in the solution exerted negligible influence on the adsorption of Cu on the modified SCB. The selectivity of the modified sorbent was further confirmed in the Cu/Cd/Mg/Pb/K quinary system. Further analysis to dynamic adsorption experiment illustrated that, due to the presence of amine groups, the modified SCB showed strong coordination ability to Cu, which allowed the other adsorbed ions (e.g., Cd) desorbed. This high adsorption selectivity toward Cu suggested that this prepared sorbent would be a promising candidate for removing and recovering Cu from wastewater.
- Subjects
COPPER ions; WASTEWATER treatment; BAGASSE; ADSORPTION kinetics; CADMIUM
- Publication
Environmental Science & Pollution Research, 2017, Vol 24, Issue 10, p9202
- ISSN
0944-1344
- Publication type
Article
- DOI
10.1007/s11356-017-8608-2