A critical review on environmental implications, recycling strategies, and ecological remediation for mine tailings
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Mine tailings, generated from the extraction, processing, and utilization of mineral resources, have resulted in serious acid mine drainage (AMD) pollution. Recently, scholars are paying more attention to two alternative strategies for resource recovery and ecological reclamation of mine tailings that help to improve the current tailing management, and meanwhile reduce the negative environmental outcomes. This review suggests that the principles of geochemical evolution may provide new perspective for the future in-depth studies regarding the pollution control and risk management. Recent advances in three recycling approaches of tailing resources, termed metal recovery, agricultural fertilizer, and building materials, are further described. These recycling strategies are significantly conducive to decrease the mine tailing stocks for problematic disposal. In this regard, the future recycling approaches should be industrially applicable and technically feasible to achieve the sustainable mining operation. Finally, the current state of tailing phytoremediation technologies is also discussed, while identification and selection of the ideal plants, which is perceived to be the excellent candidates of tailing reclamation, should be the focus of future studies. Based on the findings and perspectives of this review, the present study can act as an important reference for the academic participants involved in this promising field.
KeywordsMine tailings Environmental implications Recycling strategies Phytoremediation
The authors are very grateful to the anonymous reviewers for their revising suggestions.
This work was financially supported by the National Natural Science Foundation of China (No. 41603117).
- Guo JW, Wang JH, Yang GH (2009). Current situation and comprehensive utilization of iron ore tailings resources in our country. Modern Min 25(10):23–25 (in Chinese)Google Scholar
- Han BS, Altansukh B, Haga K, Stevanović Z, Jonović R, Avramović L, Urosević D, Takasaki Y, Masuda N, Ishiyama D, Shibayama A (2018) Development of copper recovery process from flotation tailings by a combined method of high-pressure leaching solvent extraction. J Hazard Mater 352:192–203CrossRefGoogle Scholar
- Jia T, Cao MW, Jing JH, Liu JX, Chai BF (2017) Endophytic fungi and soil microbial community characteristics over different years of phytoremediation in a copper tailings dam of Shanxi, China. Sci Total Environ 574:881–888Google Scholar
- Kohfahl C, Graupner T, Fetzer C, Pekdeger A (2010) The impact of cemented layers and hardpans on oxygen diffusivity in mining waste heaps: a field study of the Halsbrucke lead-zinc mine tailings (Germany). J Hazard Mater 408:5932–5939Google Scholar
- Li WS, Lei GY, Xu Y, Huang QF (2018) The properties and formation mechanisms of eco-friendly brick building materials fabricated from low-silicon iron ore tailings. J Clean Prod 204:685–692Google Scholar
- National Development and Reform Commission of China (2014) Annual report on China’s comprehensive utilization of resources. National Development and Reform Commission Press, Beijing, ChinaGoogle Scholar
- Quadra GR, Roland F, Barros N, Malm O, Lino AS, Azevedo GM, Thomaz JR, Andrade-Vieira LF, Praca-Fontes MM, Almeida RM, Mendonça RF, Cardoso SJ, Guida YS, Campos JMS (2019) Far-reaching cytogenotoxic effects of mine waste from the Fundao dam disaster in Brazil. Chemosphere 215:753–757CrossRefGoogle Scholar
- Singer PC, Stumm W (1970) Acid mine drainage-rate determining step. Sci 167:1121–1123Google Scholar
- Zhang L (2012) Recycling and utilization of mine tailings as construction material through geopolymerization. US EPA Hardrock Mining Conference 3:19–25Google Scholar