腐殖酸对电动修复土壤中铅去除的强化作用
Enhancement Effect of Humic Acid on Removal of Lead from Soil by Electrokinetic Process.
作者信息
Iwamura Toko, Akemoto Yasuhiro, Tanaka Shunitz
机构信息
Graduate School of Environmental Science, Hokkaido University, Kita 10 Nishi 5, Kita, Sapporo, Hokkaido, 060-0810, Japan.
Industrial Research Institute, Industrial Technology Research Department, Hokkaido Research Organization, Kita 19 Nishi 1111, Kita, Sapporo, Hokkaido, 060-0819, Japan.
出版信息
Anal Sci. 2020 May 10;36(5):627-630. doi: 10.2116/analsci.19SBN04. Epub 2020 Mar 20.
The environmentally friendly electrokinetic process was investigated using model contaminated soil with Pb and humic acid. Although humic acid has a negative charge, it moved toward the cathode side by electroosmotic flow. The removal efficiency of Pb from model contaminated soil was 48.0% under 1 V/cm of the potential gradient after 72 h of operation, while it improved to 72.6% with humic acid. These results indicated that humic acid has high potential for application in the environmentally friendly remediation of soil.
使用含有铅和腐殖酸的模拟污染土壤对环境友好型电动修复过程进行了研究。尽管腐殖酸带负电荷，但它通过电渗流朝着阴极侧移动。在运行72小时后，在1 V/cm的电位梯度下，从模拟污染土壤中去除铅的效率为48.0%，而添加腐殖酸后该效率提高到了72.6%。这些结果表明，腐殖酸在土壤环境友好修复方面具有很高的应用潜力。
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