Recent advances and future perspectives of nanosized zero- valent iron for extraction of heavy elements from metallurgical sludges

2nd International Symposium on Fundamental Aspects of Rare-earth Elements Mining and Separation and Modern Materials Engineering

材料科学;物理学

Mikhailov Yu, I.^1 ; Levina, V.V.^1 ; Kolesnikov, E.A.^1 ; Chuprunov, K.O.^1 ; Gusev, A.A.^1 ; Godymchuk Yu, A.^1 ; Kuznetsov, D.V.^1

National University of Science and Technology MISiS, 4 Leninsky prospect, Moscow

119049, Russia^1

关键词: Advanced Oxidation Processes;    Emerging technologies;    Metallurgical sludge;    Nanosized zero-valent iron;    Physico-chemical mechanisms;    Secondary Raw Materials;    Technical improvement;    Wastewater treatment technologies;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/112/1/012029/pdf
DOI  :  10.1088/1757-899X/112/1/012029

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Advanced oxidation processes with nanosized zero-valent iron have presented great potential in wastewater treatment technology and now experience both increasing popularity and reliable technical improvements. Besides wastewater treatment, there is another promising application for an emerging technology of iron nanoparticles - as Fenton-like catalyst for extraction of valuable elements from poor and secondary raw materials such as metallurgical sludges. In present research, we carried out a set of experiments with emphasis on the physicochemical mechanisms and their relationship to the performance. In particular, we examined complex acidic - hydrogen peroxide leaching of zinc from blast furnace sludge with nanosized zero-valent iron as Fenton-like catalyst. Results of the experiments showed promising potential for subsequent application in extraction of heavy and rare-earth elements.