文档介绍：The enhancement of Cd(II) adsorption by
immobilsation of tannic acid onto powdered activated
carbon
Xiaowei Liu, Zhonglin Chen*, Miaomiao Ye Jun Xu
School of Municipal and Environmental Engineering Shanghai Municipal Engineering Design General Institute
Harbin Institute of Technology Shanghai, P R China
Harbin, P R China ******@hit.
whut348@
Abstract—Over the past several decades, trace heavy metal ion
pollution, such as Cd(II), Cu(II), Pd(IV), etc., have attracted I. INTRODUCTION
much attention because of their virulent and hard degradation Toxic metals such as Cd(II), Cu(II), Pd(IV), etc., have
properties. Recently, great efforts have been devoted to establish e an ecotoxicological hazard and attracted increasing
new methods and technologies to removal toxic metals. Among attention owing to their chronic toxicities and tendency to
them, activated carbon adsorption, especially the modified accumulate in ans in man and animals. They do not
activated carbon technology has been extensively studied due to degrade into harmless end products in the metabolisms and
its feasibility, such as, the low-cost of activated carbon, the
recovery of the activated carbon. In this study, Cd(II) was chosen they are accumulated in the food chain, thereby posing the
as the target heavy metal ion to evaluate the activity of modified greatest risk to anisms