[Role and Mechanism of Low Molecular-Weight-Organic Acids in Enhanced Phytoremediation of Heavy Metal Contaminated Soil].
Huan Jing Ke Xue
; 43(10): 4669-4678, 2022 Oct 08.
Article
in Zh
| MEDLINE
| ID: mdl-36224152
ABSTRACT
Phytoremediation is an environmentally friendly technology to remove heavy metals from polluted soil by using the physical and chemical roles of plants. This can effectively reduce the production of secondary pollutants and is economically feasible. Low molecular-weight-organic acids (LMWOAs) are biodegradable and environmentally friendly and have strong application potential in the phytoremediation of heavy metal-contaminated soils. The role and mechanism of LMWOAs in phytoremediation was elaborated on in this study with the aim toâ regulate the development of roots, stems, and leaves; increase plant biomass; and enhance plant enrichment of heavy metals; â¡ improve photosynthesis, enhance plant resistance, and promote tolerance to heavy metals; ⢠change the properties of rhizosphere soil, improve rhizosphere microbial activity, and promote the absorption of heavy metals; and ⣠change the form of heavy metals, reduce the toxicity of heavy metals, and improve transport efficiency. Moreover, the advantages, disadvantages, and application of LMWOAs in enhanced phytoremediation of heavy metal-contaminated soil were explored in this study. Finally, the research direction of LMWOAs in the phytoremediation of heavy metal-contaminated soils was proposed, which will have practical scientific significance for the research and application of LMWOAs in future phytoremediation.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Soil Pollutants
/
Metals, Heavy
Language:
Zh
Journal:
Huan Jing Ke Xue
Year:
2022
Document type:
Article
Affiliation country:
China
Publication country:
CHINA
/
CN
/
REPUBLIC OF CHINA