摘要 : The effect of lead (Pb) on the sorption of phenol onto montmorillonite-based sorbents was studied using a batch equilibration method when phenol and Pb were sorbed simultaneously and either Pb or phenol was previously sorbed. The ... 展开 The effect of lead (Pb) on the sorption of phenol onto montmorillonite-based sorbents was studied using a batch equilibration method when phenol and Pb were sorbed simultaneously and either Pb or phenol was previously sorbed. The sorbents were Na+-, Ca2+-, hexadecyl trimethylammonium (HDTMA)-Na+-, and HDTMA-Ca2+-montmorillonites. Pb diminished the sorption of phenol largely onto Na+- or Ca2+-montmorillonites, while phenol had little effect on the sorption of Pb onto all sorbents. Pb had no effect on the sorption of phenol onto HDTMA-Na+- or HDTMA-Ca2+-montmorillonites either. The sorption capacity of phenol followed the order HDTMA-Na+- > HDTMA-Ca2+- > Na+- > Ca2+-montmorillonites. The pseudo-second-order equation described the kinetics of phenol sorption well. Sorption isotherms of phenol followed the Freundlich equation. Phenol sorption on HDTMA-Na+- and HDTMA-Ca2+-montmorillonites was linear, while that on Na+- and Ca2+-montmorillonites was nonlinear. (c) 2007 Elsevier Inc. All rights reserved. 收起