Department of Hydraulic and Environmental Engineering, Federal University of Ceará - UFC, Fortaleza, CE, Brazil.
J Environ Manage. 2010 Aug;91(8):1634-40. doi: 10.1016/j.jenvman.2010.02.011. Epub 2010 Apr 18.
This study applies green coconut shells as adsorbent for the removal of toxic metal ions from aqueous effluents using column adsorption. The results show that a flow rate of 2 mL/min and a bed height of 10 cm are most feasible. Furthermore, larger amounts of effluent can be treated for removal of single ions. The breakthrough curves for multiple elements gave the order of adsorption capacity: Cu(+2) > Pb(+2) > Cd(+2) > Zn(+2) > Ni(+2). Real samples arising from the electroplating industry can be efficiently handled.
本研究使用柱状吸附法，以绿椰壳作为吸附剂，从废水中去除有毒金属离子。结果表明，流速为 2 毫升/分钟，床层高度为 10 厘米时最为可行。此外，处理更多的废水可以去除单一离子。对于多种元素的穿透曲线，吸附容量的顺序为：Cu(+2) > Pb(+2) > Cd(+2) > Zn(+2) > Ni(+2)。电镀工业产生的实际样品可以得到有效处理。
