Application of Biochar for Ion-Adsorption of Rare Earth Contaminated Soil Remediation: A Review

Haimei Chen, Haibin Chen (), Levente Kardos and Veronika Szabó
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Haimei Chen: Department of Dendrology and Floriculture, Faculty of Horticultural Science, Hungarian University of Agriculture and Life Sciences, Villanyi ut, 29-43, 1118 Budapest, Hungary
Haibin Chen: School of History and Geography, Minnan Normal University, Zhangzhou 363000, China
Levente Kardos: Department of Agro-Environment Studies, Faculty of Horticultural Science, Hungarian University of Agriculture and Life Sciences, Villanyi ut, 29-43, 1118 Budapest, Hungary
Veronika Szabó: Department of Dendrology and Floriculture, Faculty of Horticultural Science, Hungarian University of Agriculture and Life Sciences, Villanyi ut, 29-43, 1118 Budapest, Hungary

Sustainability, 2023, vol. 15, issue 10, 1-15

Abstract: Rare earth elements, particularly middle and heavy rare earth, are among the most valuable resources in the pursuit of a greener economy. The production of middle and heavy rare earth elements heavily relies on ion adsorption, which constitutes over 80% of global output and is centered in southern China. Unfortunately, the extensive mining activities have led to severe environmental pollution, resource depletion, and risks to human health. In contrast, biochar application offers a cost-effective and efficient phytoremediation solution. However, existing literature on the biochar application in IAT-Res mine tailings is limited. In this paper, we conducted a literature review and summarized the contaminations in the ion adsorption mine tailings, as well as explored the potential of using biochar to remediate contaminations. We aim to raise interest and encourage further research on utilizing biochar for pollution remediation in ion adsorption rare earth mine tailings. By effectively managing contamination, this approach can contribute to the sustainable supply of ion adsorption rare earth elements while ensuring their long-term viability.

Keywords: ion adsorption rare earth; biochar; remediation; contaminated soil (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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