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| Research Progress on Remediation of Heavy Metal Pollution in Soil with Passivators |
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Received:October 28, 2022
Revised:November 01, 2022
Accepted:November 08, 2022
Published Online:February 13, 2023
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| DOI：doi：10.3969/j.issn.1007-7545.2023.03.016 |
| KeyWord:heavy metals pollution, soil, passivation materials, passivation remediation |
| Author | Institution |
| FANG Yan-ling |
南华大学 土木工程学院 |
| DUAN Yi |
南华大学 土木工程学院 |
| ZHOU Shu-kui |
南华大学 土木工程学院 |
| LIU Ying-jiu |
南华大学 土木工程学院 |
| XIANG Li-ping |
南华大学 土木工程学院 |
| ZOU Wei-yan |
南华大学 土木工程学院 |
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| Abstract: |
| Remediation of heavy metal contaminated soil is a long-term and arduous task. At present, soil heavy metal pollution remediation technology is mainly divided into physical remediation, chemical remediation and bioremediation. As a kind of chemical repair, passivation technology is widely used because of its low cost, high efficiency and time saving. This paper summarizes the types of passivation remediation from five aspects : calcareous materials, phosphorus-containing materials, clay minerals, biochar and other materials, and introduces the mechanism of passivation remediation. Finally, it analyzes the influencing factors of passivation remediation of heavy metals in soil-the dosage of passivation agent, pH value and the stability of passivation agent. Based on current research status and problems of passivation repair, the future development trend of passivation repair was prospected. |
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