【作者】 邱会东； 唐黎琼；

【Author】 QIU Huidong~1 TANG Liqiong~2 (1 Department of Chemistry and Chemical Technology,Chongqing Institute of Science and Technology,Chongqing 400050;2 Wenzhou Tap Water Consortium Ltd,Wenzhou 325000)

【机构】 重庆科技学院化学化工学院； 浙江温州水务集团公司；

【摘要】 研究了棕榈树皮对废水中的重金属离子 Pb²⁺的吸附性能和吸附机理。棕榈树皮吸附 Pb²⁺的容量为 4．1mg/g。在较低的溶液 pH 值、较高的初始 Pb²⁺浓度时,有较高的吸附量;在吸附过程中 pH 值下降,说明 H⁺与 Pb²⁺发生了离子交换作用。已吸附 Pb²⁺的材料可以用盐酸解吸,解吸后的棕榈树皮具有与新制备的棕榈树皮基本相同的吸附量。更多还原

【Abstract】 The adsorption of lead from wastewater on paml leaf,one kind of large amount of residuals from forest,has been studied with respect to modify reagent,pH,time,co ion concentration desorption method.The results showed that the adsorption capacity of lead（4.1mg/g）on paml leaf increased with increasing of initial concentration, pH values and decreased with increasing of adsorption time,HCI can be used to desorb the laden Pb²⁺ on the paml leaf and its adsorption capacity conespond new paml leaf.更多还原