Enhancement Effect of Humic Acid on Removal of Lead from Soil by Electrokinetic Process

被引：0
|
作者：
Toko Iwamura
Yasuhiro Akemoto
Shunitz Tanaka
机构：
[1] Hokkaido University,Graduate School of Environmental Science
[2] Hokkaido University,Faculty of Environmental Earth Science
[3] Hokkaido Center of Environmental Science and Technology (General Incorporated Foundation),Industrial Research Institute, Industrial Technology Research Department
[4] Hokkaido Research Organization,undefined
来源：
Analytical Sciences | 2020年 / 36卷
关键词：
Soil treatment; electrokinetic process; lead; humic acid; pyrophyllite; electroosmotic flow;
D O I：
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中图分类号：
学科分类号：
摘要：
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.
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页码：627 / 630
页数：3
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