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Abstract
With the rapid pace of industrialization and urbanization, the environmental safety of soil is a worldwide concern. In China alone, one-fifth of the arable land is reported to be contaminated with heavy metals including nickel. In this review, current research on nickel remediation, specifically the various remediation technologies including physical and chemical remediation methods, such as immobilization, soil washing, encapsulation, soil replacement, and electrokinetic methods; phytoremediation; and bioremediation, is summarized. Further, the mechanisms underlying the presented remediation technologies, along with their advantages and disadvantages, are discussed. The lacunae in available technologies for nickel remediation are also briefly discussed. The review concludes with a scheme for successful soil remediation.
Disclosure statement
No potential conflict of interest was reported by the authors.