豆皮对重金属离子Cr(Ⅵ)的吸附性能的研究  

On the Absorption Properties of Heavy Metal Ion Cr (Ⅵ) by Soybean Hulls

作　　者：周显宏[1] 杨倩倩[2] 余以刚[2] 王励申[1] 朱丹[1] 

机构地区：[1]东莞理工学院化学与环境工程学院,广东东莞523808 [2]华南理工大学轻工与食品学院,广州510640

出　　处：《东莞理工学院学报》2010年第5期69-73,共5页Journal of Dongguan University of Technology

基　　金：东莞市科技攻关项目(2008108101012);广东省田园农业科技服务专项计划项目(2009B02050600 1-31)

摘　　要：以大豆豆皮作为生物吸附剂,通过振荡方法吸附Cr(Ⅵ)浓度为10 mg/L的模拟重金属废水。研究了pH、吸附时间、豆皮投加量和Cr(Ⅵ)初始浓度对Cr(Ⅵ)吸附活性的影响。结果表明:当吸附时间为20 min,温度为30℃、pH=2～3、豆皮投加量为2 g/L时,Cr(Ⅵ)的去除率达到91.99%。此外,还对豆皮吸附Cr(Ⅵ)后的解析性能作了考察,其解析率达到95.01%,并且可反复使用。豆皮是安全的天然产物,可用于去除废水中的重金属离子,也可用于去除饮用水中的重金属离子。This study reported the feasibility of adsorption of heavy metals from simulated heavy metal wastewater with 10 mg/L of Cr（Ⅵ） by using the soybean hulls.The effects of pH,contact time,amount of soybean hulls,initial concentration of Cr（Ⅵ） on adsorption activity were studied.Results showed that removal rate of Cr（Ⅵ） was 91.991%at 30℃,pH = 2～3,with soybean hulls of 2 g/L for 20 minutes.Desorption rate of Cr（Ⅵ）was 95.01%, which made soybean hulls could be used repeatedly.Soybean hulls were safe and environmentally-friendly natural products,and could be used as heavy metals adsorbents of waste water or drinking water.

关 键 词：豆皮 重金属离子 吸附 

分 类 号：O647.3[理学—物理化学]