A review on Phytoremediation of heavy metals contaminated soils

Subject Areas : Water and Environment

Mohammad Reza  Naderi ¹ (PhD candidate of crop ecology, Agriculture college, Ferdowsi University, Mashhad, Iran)
Abdolrazagh  Danesh-Shahraki ² (Assistant professor, Department of Agronomy, Agricultural college, Shahrekord University.)
Rezvan  Naderi ³ (Msc student of seed science and technology, Agricultural college, Birjand University.)

Received: 2011-07-03 Accepted : 2012-03-09 Published : 2013-01-20

Keywords: Heavy Metals, Phytoremediation, Phytoextraction, Phytofiltration, Phytovolatilization, Phytostabilization,

Abstract :

Heavy metals toxicity and their accumulation in food chains is one of the main environmental and healthful problems in current modern societies. Although, remediation of metal-contaminated soils is possible by chemical, physical and biological techniques, but chemical and physical methods of metal-contaminated lands remediation are costly, time consuming and environment destructive. Hence, in current years scientists and engineers to think of design and development of biological techniques that be able to modify heavy metals-contaminated sites without to have evil effects on soil fertility and biodiversity. The phytoremediation is an environment friendly and green technology that is cost effective and energetically inexpensive. This technology is included the use of plants and their associated microorganisms for elimination or stabilization of toxic contaminants such as heavy metals. In this article, we have a brief review on phytoremediation technology and its various techniques.

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