Full-Text Search:
Home|About CNKI|User Service|中文
Add to Favorite Get Latest Update

The Studies on the Adsorptive-desorptive Behaviour of Arsenic in Brown Soil and Its Form Distribution

LIANG Cheng-hua1*,LIU Xue1,DU Li-yu1,JIN Guang-zhe1,WANG Nan1,LIU Jun-jie2 (1.Colledge of Soil and Environment,Shenyang Agricultual University,Shenyang 110161,China;2.Technology Information Institute of Fuxin,Fuxin 123000,China)  
With the batch method,arsenate adsorptive-desorptive behavior in the brown soil and its form distribution in different metal burden soils were studied.The results indicated that arsenic adsorption could be better fitted by Langmuir equations.The maximum adsorption capacity of the brown soil towards arsenic was 250.0 mg/kg.The adsorption kinetic data indicated that Lagergren second-order rate equation described the adsorption best,but not the desorption;two-constant equation describe the desorption best.By adding different level arsenic into the soils,the percentage of the active arsenic was increased with arsenic content,while the percentage of inactive arsenic was decreased.
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©CNKI All Rights Reserved