环境保护科学2012，Vol.38Issue(2)：27-29,3.
酒石酸淋洗过程中土壤重金属解吸动力学特征
Kinetics Characteristics of Heavy Metals Desorption from Contaminated Soil during Tartaric Acid Leaching
刘岚昕1
作者信息
- 1. 辽宁省环境保护宣传教育中心,辽宁 沈阳 110033
- 折叠
摘要
Abstract
The kinetics characteristics of four heavy metals, namely Cd, Pb, Cu, Zn, desorption from contaminated soil during tartaric acid leaching to restore Zhangshi sewage irrigation area were studied by batch experiments. The results showed that the maximum removal of Cd was within 12h, while the maximum removal of Cu, Pb and Zn were within 24h. Desorption behaviors of four heavy metals were described by Elovich model well. This meant desorption process belonged to heterogeneous diffusion. In addition, desorption rate curve indicated that the order of desorption rate was Pb > Cu=Zn > Cd in the beginning of reaction, while the rates of Cu and Zn were faster than that of Pb and Cd at the end of reaction.关键词
酒石酸/淋洗/解吸动力学/重金属污染土壤Key words
Tartaric Acid/ Soil Leaching/ Desorption Kinetics/ Heavy Metal Contaminated Soil分类
资源环境引用本文复制引用
刘岚昕..酒石酸淋洗过程中土壤重金属解吸动力学特征[J].环境保护科学,2012,38(2):27-29,3.
