REVIEW PAPER
Chelant-Induced Phytoextraction of Heavy Metals from Contaminated Soils: A Review
Xunguang Bian 1, 2, 3  
,  
Jun Cui 1, 2  
,  
Boping Tang 1, 2  
,  
Li Yang 1, 2  
 
 
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1
Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, Yancheng Teachers University, Yancheng, Jiangsu, China
2
Jiangsu Key Laboratory for Bioresources of Saline Soils, Yancheng Teachers University, Yancheng, Jiangsu, China
3
School of Ocean and Biological Engineering, Yancheng Teachers University, Yancheng, Jiangsu, China
Online publish date: 2018-06-25
Publish date: 2018-07-09
Submission date: 2017-09-23
Final revision date: 2017-12-04
Acceptance date: 2017-12-14
 
Pol. J. Environ. Stud. 2018;27(6):2417–2424
KEYWORDS:
TOPICS:
ABSTRACT:
Chelant-induced phytoextraction is considered an ideal remedial technique for removing heavy metals from contaminated soils. However, it can increase the risk of adverse environmental effects due to increased metal mobilization and the persistence of both chelants and metal-chelant complexes for extended periods of time. This paper reviews the mechanism, potential risks, and optimization of chelant-induced phytoextraction of toxic metals from contaminated soils. The advantages and major drawbacks of phytoextraction, along with possible strategies to reducing the risks associated with chelant application, are reviewed. Moreover, the directions for future research on chelant-assisted phytoextraction are briefly discussed. The objective of this paper was to comprehensively review chelant-assisted phytoextraction, and it will provide an effective and safe remediation technology for heavy metal-contaminated soils.
CORRESPONDING AUTHOR:
Li Yang   
Yancheng Teachers University, Yancheng, 224007 Yancheng, China
eISSN:2083-5906
ISSN:1230-1485