Progress of Phytoremediation Technology for Heavy Metal Contaminated Soil in Copper Tailings Area
With the continuous development and utilization of copper resources,the problem of heavy metal pollu-tion in the soil around the tailing area is becoming more and more serious,and it is urgent to find a low-cost and environmentally friendly heavy metal contaminated soil treatment technology.Phytoremediation technology has been widely studied and applied to the remediation of heavy metal contaminated soil due to its advantages of low cost,no secondary pollution,and simple process.This paper summarizes specific plant types such as legumes,as-teraceae,groundcovers and ornamental plants that are suitable for heavy metal contaminated soil remediation in copper tailing areas,describes the potential advantages of each type of plant remediation of heavy metal contami-nated soil and the shortcomings of single phytoremediation techniques,and introduces further research progress in combining the animal,chemical and microbial methods in the joint remediation of heavy metal contaminated soils.Finally,the research direction of phytoremediation technology and combined phytoremediation technology is pro-posed.
copper tailingsheavy metal pollutionsoil pollutionphytoremediationcombined remediation
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