Open Access
ARTICLE
Remediation of Cu Contaminated Soil by Fe78Si9B13AP Permeability Reaction Barrier Combined with Electrokinetic Method
Liefei Pei1,2, Xiangyun Zhang1, Zizhou Yuan1,*
1
School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, China
2
School of Mining and Metallurgy Engineering, Baiyin Mining and Metallurgy Vocational and Technical College, Baiyin, China
* Corresponding Author: Zizhou Yuan. Email:
Journal of Renewable Materials 2023, 11(6), 2969-2983. https://doi.org/10.32604/jrm.2023.025760
Received 29 July 2022; Accepted 26 September 2022; Issue published 27 April 2023
Abstract
Iron-based amorphous crystalline powder Fe
78Si
9B
13AP is used as a permeability reaction barrier (PRB) combined
with an electrokinetic method (EK-PRB) to study the removal rate of Cu in contaminated soil. After treating Cucontaminated soil for 5 days under different voltage gradients and soil water content, the soil pH is between
3.1 and 7.2. The increase of voltage gradient and soil water content can effectively promote the movement of
Cu
2+ to the cathode. The voltage gradient is 3 V/cm, and the water content of 40% is considered to be an optional
experimental condition. Therefore, under this condition, the effects of Fe
78Si
9B
13AP and zero-valent iron (ZVI) as
PRB on the removal rate of total Cu in soil and the transformation of chemical forms of Cu are studied. Compared with ZVI, Fe
78Si
9B
13AP as PRB has a better remediation effect. EK-Fe
78Si
9B
13AP can remove 80.3% of total
Cu in soil, and the biologically available Cu is reduced to 3.6%, which effectively reduces the environmental risk of
contaminated soil.
Keywords
Cite This Article
Pei, L., Zhang, X., Yuan, Z. (2023). Remediation of Cu Contaminated Soil by Fe
78Si
9B
13AP Permeability Reaction Barrier Combined with Electrokinetic Method.
Journal of Renewable Materials, 11(6), 2965–2979.