REVIEW PAPER
The Remediation Mechanisms and Effects
of Chemical Amendments for Heavy Metals
in Contaminated Soils: A Review of Literature
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1
Centre for Environmental Risk Management and Remediation of Soil and Groundwater, Tongji University,
Shanghai 200092, PR China
2
Viterbi School of Engineering, University of Southern California, Los Angeles, CA 90089, United States
3
State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering,
Tongji University, Shanghai 200092, PR China
4
Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, PR China
Submission date: 2021-09-27
Final revision date: 2022-01-25
Acceptance date: 2022-02-14
Online publication date: 2022-08-04
Publication date: 2022-09-28
Corresponding author
Damao Xu
College of Environmental Science and Engineering, Tongji University, Siping Street, 200092, Shanghai, China
Pol. J. Environ. Stud. 2022;31(5):4511-4522
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ABSTRACT
Many countries around the world are suffering from serious problems associated with soil heavy
metal pollution, especially developing countries. Heavy metal contaminants in soils mainly result
from soil natural weathering and anthropogenic activities such as industrial and agricultural activities,
coal-burning as well as transportation. It is widely acknowledged that heavy metal pollution may lead
to the deterioration of soil environmental quality and the loss of soil ecological functions. Therefore,
the control and remediation for soil heavy metal pollution need to be urgently carried out to guarantee
human health and food security. To date, soil amendments are increasingly employed to remediate heavy
metal contaminated soils. In recent years, the research progress at an international scale is reviewed
with regard to soil amendments used for the remediation of heavy metal polluted soils by laboratory and
field-scale studies. A summary is provided with soil amendment types, metal stabilization mechanisms,
as well as the influences of soil amendment application on soil properties. At last, future research
prospects are put forward to broaden the development of this field. It is expected to provide valuable
references for the research and practice of heavy metal stabilization in polluted soils.