Study on The Adsorption-Desorption Behavior of Cr in Soil as Affect by Zeolite

被引：0
|
作者：
Ke, Xin [1 ]
Xu, Guangzhen [1 ]
Niu, Linlin [1 ]
Zhao, Xin [1 ]
Li, Rundong [1 ]
Zhang, Yun [2 ]
机构：
[1] Shenyang Aerosp Univ, Inst Clean Energy & Environm Engn, Shenyang, Peoples R China
[2] Shenyang Agr Univ, Coll Soil & Environm, Shenyang, Peoples R China
来源：
CONTAMINATED SITES REMEDIATION | 2012年 / 414卷
关键词：
zeolite; heavy metal; adsorption-desorption; kinetics; thermodynamics; CHROMIUM(VI);
D O I：
10.4028/www.scientific.net/AMR.414.32
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Under laboratory simulation experimental model, through adding exogenous chromium and CaCl2 solution, we research adsorption, desorption characteristics of Cr in soils with or without fixative (zeolite). Research shows that: The soil with zeolite can increase adsorption capacity of soil for Cr, it can also reduce the desorption quantity of Cr. In thermodynamics experiment, Freundlich equation is one of the best model to describe adsorption, desorption characteristics for Cr in soil with or without zeolite.; In kinetics experiment, adding zeolite to soil could increase adsorption rate for Cr and decrease the desorption rate for Cr,we could use Elovich equation to describe adsorption, desorption characteristics of soils with or without zeolite for Cr.
引用
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页码：32 / +
页数：2
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