E3S Web Conf.
Volume 233, 20212020 2nd International Academic Exchange Conference on Science and Technology Innovation (IAECST 2020)
|Number of page(s)||4|
|Section||NESEE2020-New Energy Science and Environmental Engineering|
|Published online||27 January 2021|
Effect Analysis of Removing Lead and Arsenic from contaminated soil by Selected Eluents
1 PKU-HKUST Shenzhen-Hongkong Institution, 518057, Shenzhen, Guangdong
2 Chongqing Environment Engineering Academu Co., Ltd, 400021, Chongqing
3 Peking University Shenzhen Graduate School, 518057, Shenzhen, Guangdong
In order to reduceof the amount of lead and arsenic in contaminated soil, CA(citric acid), PA(polyepoxysuccinic acid), MA(malic acid) and EDTA were used to remove as chemical extractor. The experiments showed that the extraction ability of lead was EDTA>CA>MA>PA, and of arsenic was MA>CA>PA=EDTA. The eluents concentration, reaction period and liquid/solid ratio were the key factor of extraction effect. It was evident that the optimal condition was 0.1 mol/L eluent and 2h of extraction period.
© The Authors, published by EDP Sciences 2021
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