Adsorption Capacity of Zeolite Shangtianti to Heavy Metal Ions and Remediation of Contaminated Soil

YANG Minghui; LIU Yi; LU Ronghong; ZHOU Feng

doi:10.13779/j.cnki.issn1001-0076.2021.06.009

2021 Vol. 41, No. 6

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YANG Minghui, LIU Yi, LU Ronghong, ZHOU Feng. Adsorption Capacity of Zeolite Shangtianti to Heavy Metal Ions and Remediation of Contaminated Soil[J]. Conservation and Utilization of Mineral Resources, 2021, 41(6): 79-87. doi: 10.13779/j.cnki.issn1001-0076.2021.06.009

Citation:

YANG Minghui, LIU Yi, LU Ronghong, ZHOU Feng. Adsorption Capacity of Zeolite Shangtianti to Heavy Metal Ions and Remediation of Contaminated Soil[J]. Conservation and Utilization of Mineral Resources, 2021, 41(6): 79-87. doi: 10.13779/j.cnki.issn1001-0076.2021.06.009

Adsorption Capacity of Zeolite Shangtianti to Heavy Metal Ions and Remediation of Contaminated Soil

1.
Faculty of Material and Chemistry, China University of Geosciences, Wuhan 430074, China
2.
Li'Jiang LONGi Silicon Materials Corp., Lijiang 674100, Yunnan, China

More Information

Corresponding author: ZHOU Feng, fengzhou@cug.edu.cn

Received Date: 19 September 2021

Publish Date: 25 December 2021

Abstract

Abstract

The water and soil pollution caused by Heavy metal is persistence and irreversibility. Therefore, the prevention and control of heavy metal pollution has attracted people's attention, Absorption and stabilization of heavy metal elements in soil and water are common remediation methods. This study took seven kinds of zeolite from Shangtianti areas as the raw material, Their ability to absorb heavy metals (Pb, Cd, Zn) in aqueous solutions was investigated. At the same time, the sample with the best adsorption effect was selected for further thermal activation. The ability to adsorption and immobilization the heavy metal Pb in aqueous solution and soil was also analyzed. The results showed that the adsorption capacity of Pb for sample XHF-01 is 25.39 mg/g. The best adsorption effects for Cd and Zn were AF-01 and AF-02 respectively, the adsorption capacity of Cd and Zn is 20.97 mg/g and 21.42 mg/g respectively.The adsorption capacity of XHF-01 to Pb in aqueous solution reached the peak at 300 ℃. The results showed that 300 ℃ thermal activated sample had the best ability to repair Pb contaminated soil, which could reduce TCLP-Pb by 69.2%. This study provides an excellent adsorbent and remediator for reducing Pb content in soil and aqueous solution.
- zeolite /
- soil remediation /
- thermal activation /
- heavy metals

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References

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