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Adsorption of Nickel on Chinese Loess in Aqueous Solution
WANG Yan 1 #,TANG Xiaowu 2 *,HE Xi 2
1.MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering, Department of Civil Engineering,Zhejiang University
2.Department of Civil Engineering, Zhejiang University, Hangzhou, 310058
*Correspondence author
#Submitted by
Subject:
Funding: Chinese Universities Scientific Fund (No.No. 2009QNA4026), Research Fund for the Doctoral Program of Higher Education of China (No.No. 20090101110075)
Opened online:19 May 2010
Accepted by: none
Citation: WANG Yan,TANG Xiaowu,HE Xi.Adsorption of Nickel on Chinese Loess in Aqueous Solution[OL]. [19 May 2010] http://en.paper.edu.cn/en_releasepaper/content/4372234
 
 
Nickel is a trace element that has severe toxic effect to living organisms. The loess soil from Chinese Loess Plateau was investigated to remove Ni(II) from aqueous solution. Batch tests were carried out and the appropriate loess dosage was determined to be 10 g L-1. The Freundlich model was found better to describe Ni(II) adsorption on loess soil than the Langmuir model. The adsorption capacity of loess soil towards Ni(II) was 16.71 mg g-1, and loess is a potential appealing adsorbent for removing heavy metals. Clay minerals and organic matter both play important roles in removing Ni(II) from aqueous solution.
Keywords:Nickel;Loess;Adsorption capacity;Isotherm
 
 
 

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