REVIEW PAPER
Chelant-Induced Phytoextraction of Heavy Metals
from Contaminated Soils: A Review
| 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 |
CORRESPONDING AUTHOR
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.
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