Effect of humic acid on transformation of soil heavy metals

4th International Conference on Advanced Composite Materials and Manufacturing Engineering 2017

材料科学;化学

Wu, Shengzhe^1 ; Li, Rui^1 ; Peng, Shuyang^1 ; Liu, Qiuyong^1 ; Zhu, Xi^1

School of Information and Safety Engineering, Zhongnan University of Economics and Law, Wuhan

430073, China^1

关键词: Contaminated soils;    Contaminated solutions;    Environmental temperature;    Heavy metals in soil;    Humic acid;    Removal efficiencies;    Soil heavy metals;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/207/1/012089/pdf
DOI  :  10.1088/1757-899X/207/1/012089

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The pattern of transformation among different fractions of heavy metals in soil draws great attention. This article investigated the effect of humic acid on soil heavy metal under different pH and temperature. The results showed that with the increasing of the concentration of humic acid, the concentration of available Cu, Pb decreased greatly, though the decrease of available Cd was light. Also, pH of soil had certain impact on the concentration of available Cu, Pb, Cd while the influence of environmental temperature was minor. The removal efficiency of contaminated soil was 57.283% (Cu), 2.645% (Cd) and 15.485% (Pb) while it could reach more than 98% in contaminated solution.