TY - JOUR
T1 - A critical review on various remediation approaches for heavy metal contaminants removal from contaminated soils
AU - Rajendran, Saravanan
AU - Priya, T. A.K.
AU - Khoo, Kuan Shiong
AU - Hoang, Tuan K.A.
AU - Ng, Hui Suan
AU - Munawaroh, Heli Siti Halimatul
AU - Karaman, Ceren
AU - Orooji, Yasin
AU - Show, Pau Loke
N1 - Funding Information:
The author (SR) acknowledges the support of ANID through the project ANID/FONDAP/1511001. The author (AKP) grateful to KPRIET for providing resources and infrastructure for the preparation of this article. This work was supported by the Fundamental Research Grant Scheme, Malaysia [FRGS/1/2019/STG05/UNIM/02/2] and MyPAIR-PHC-Hibiscus Grant [MyPAIR/1/2020/STG05/UNIM/1]. This work was also supported by the UCSI University Research and Innovation Grant under project code [REIG-FAS-2020/028]. This work was supported by The Directorate of Resources, RISTEK DIKTI through World Class Professor Program Scheme B 2021 (Nomor: 2817/E4.1/KK.04.05/2021).
Funding Information:
The author (SR) acknowledges the support of ANID through the project ANID / FONDAP /1511001. The author (AKP) grateful to KPRIET for providing resources and infrastructure for the preparation of this article. This work was supported by the Fundamental Research Grant Scheme , Malaysia [ FRGS/1/2019/STG05/UNIM/02/2 ] and MyPAIR-PHC-Hibiscus Grant [ MyPAIR/1/2020/STG05/UNIM/1 ]. This work was also supported by the UCSI University Research and Innovation Grant under project code [ REIG-FAS-2020/028 ]. This work was supported by The Directorate of Resources, RISTEK DIKTI through World Class Professor Program Scheme B 2021 (Nomor: 2817/E4.1/KK.04.05/2021 ).
Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2022/1
Y1 - 2022/1
N2 - Heavy metal pollution remains a global environmental challenge that poses a significant threat to human life. Various methods have been explored to eliminate heavy metal pollutants from the environment. However, most methods are constrained by high expenses, processing duration, geological problems, and political issues. The immobilization of metals, phytoextraction, and biological methods have proven practical in treating metal contaminants from the soil. This review focuses on the general status of heavy metal contamination of soils, including the excessive heavy metal concentrations in crops. The assessment of the recent advanced technologies and future challenges were reviewed. Molecular and genetic mechanisms that allow microbes and plants to collect and tolerate heavy metals were elaborated. Tremendous efforts to remediate contaminated soils have generated several challenges, including the need for remediation methodologies, degrees of soil contamination, site conditions, widespread adoptions and various possibilities occurring at different stages of remediation are discussed in detail.
AB - Heavy metal pollution remains a global environmental challenge that poses a significant threat to human life. Various methods have been explored to eliminate heavy metal pollutants from the environment. However, most methods are constrained by high expenses, processing duration, geological problems, and political issues. The immobilization of metals, phytoextraction, and biological methods have proven practical in treating metal contaminants from the soil. This review focuses on the general status of heavy metal contamination of soils, including the excessive heavy metal concentrations in crops. The assessment of the recent advanced technologies and future challenges were reviewed. Molecular and genetic mechanisms that allow microbes and plants to collect and tolerate heavy metals were elaborated. Tremendous efforts to remediate contaminated soils have generated several challenges, including the need for remediation methodologies, degrees of soil contamination, site conditions, widespread adoptions and various possibilities occurring at different stages of remediation are discussed in detail.
KW - Biological methods
KW - Heavy metals
KW - Immobilization
KW - Pollution
KW - Remediation
UR - http://www.scopus.com/inward/record.url?scp=85116028092&partnerID=8YFLogxK
U2 - 10.1016/j.chemosphere.2021.132369
DO - 10.1016/j.chemosphere.2021.132369
M3 - Article
C2 - 34582930
AN - SCOPUS:85116028092
SN - 0045-6535
VL - 287
JO - Chemosphere
JF - Chemosphere
M1 - 132369
ER -
