Rapid immobilization of transferable ni in soil by fe78si9b13 amorphous zero-valent iron

doi:10.32604/JRM.2022.016961

	Rapid immobilization of transferable ni in soil by fe78si9b13 amorphous zero-valent iron
	Pei, Liefei; Zhang, Xiangyun; Yuan, Zizhou
刊名	Journal of Renewable Materials
	2022
卷号	10 期号:4 页码:955-968
关键词	Activation energy Amorphous alloys Amorphous silicon Heavy metals Iron alloys Nickel compounds Pore structure Silicon alloys Silicon compounds Soil pollution Soils Apparent activation energy Contaminated soils Dyes wastewaters Fe-Si-B Immobilisation Immobilization efficiency Iron content Iron hydroxide oxide Soil contamination Zero-valent iron
ISSN号	2164-6325
DOI	10.32604/JRM.2022.016961
英文摘要	Fe-Si-B amorphous zero-valent iron has attracted wide attention because of its efficient remediation of heavy metals and dye wastewater. In this paper, the remediation effect of amorphous zero-valent iron powder (Fe78Si9-BAP13) on Ni contaminated soil was investigated. Results show that the immobilization efficiency of nickel in soil by Fe78Si9BAP13 with low iron content is higher than that by ZVI. The apparent activation energies of the reactions of Fe78Si9BAP13 with Ni2+ ions is 25.31 kJ/mol. After continuing the reaction for 7 days, Ni2+ ions is mainly transformed into monoplasmatic nickel (Ni0) and nickel combined with iron (hydroxide) oxides. Microstructure investigations show that the product layer with nano-pore structure is beneficial to improve the reaction activity of Fe78Si9BAP13. After that, a magnetic separation process is introduced, in which part of the immobilized Ni are removed to reduce the total Ni content in soil by 58.21%. The results of simulated acid rain leaching experiment showed that the release of Ni in the soil after Fe78Si9BAP13 remediation is 62.89% lower than that before remediation. © 2021, Tech Science Press. All rights reserved.
语种	英语
出版者	Tech Science Press
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/158015]
专题	材料科学与工程学院
作者单位	School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Pei, Liefei,Zhang, Xiangyun,Yuan, Zizhou. Rapid immobilization of transferable ni in soil by fe78si9b13 amorphous zero-valent iron[J]. Journal of Renewable Materials,2022,10(4):955-968.
APA	Pei, Liefei,Zhang, Xiangyun,&Yuan, Zizhou.(2022).Rapid immobilization of transferable ni in soil by fe78si9b13 amorphous zero-valent iron.Journal of Renewable Materials,10(4),955-968.
MLA	Pei, Liefei,et al."Rapid immobilization of transferable ni in soil by fe78si9b13 amorphous zero-valent iron".Journal of Renewable Materials 10.4(2022):955-968.