Evalution of hydrodynamic dispersion coefficients of nickel and zinc released from a contaminated clay solidified/stabilized by a low-carbon binder

FENG Ya-song; ZHOU Shi-ji; WAN Jia-lei; WANG Shui; DU Yan-jun

doi:10.11779/CJGE2022S2033

Volume 44 Issue S2

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Chinese Journal of Geotechnical Engineering > 2022 > 44(S2): 151-154. > DOI: 10.11779/CJGE2022S2033

FENG Ya-song, ZHOU Shi-ji, WAN Jia-lei, WANG Shui, DU Yan-jun. Evalution of hydrodynamic dispersion coefficients of nickel and zinc released from a contaminated clay solidified/stabilized by a low-carbon binder[J]. Chinese Journal of Geotechnical Engineering, 2022, 44(S2): 151-154. DOI: 10.11779/CJGE2022S2033

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Evalution of hydrodynamic dispersion coefficients of nickel and zinc released from a contaminated clay solidified/stabilized by a low-carbon binder

1.
Jiangsu Province Engineering Research Center of Soil and Groundwater Pollution Prevention and Control, Jiangsu Provincial Academy of Environmental Science, Nanjing 210036, China
2.
Institute of Geotechnical Engineering, Southeast University, Nanjing 211189, China

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Received Date: December 05, 2022
Available Online: March 26, 2023

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Abstract

Abstract

A low-carbon by-products-based binder-solidified/stabilized soil was subjected to the flexible wall permeability tests to obtain the hydrodynamic dispersion parameters by periodically measuring the concentrations of nickel and zinc of the effluent. The results demonstrate that the addition of the by-products-based binder decreases the concentrations of nickel and zinc in the effluent liquid. The concentrations of heavy metals are lower than that of the original contaminated soil, and meet the requirements of IV-Grade underground water regulated by China's standard GB/T14848—2017. The hydrodynamic dispersion coefficients of nickel and zinc in the treated soil decrease by 2 order of magnitudes as compared to those of the untreated contaminated soil.
- heavy metal,
- low-carbon binder,
- solidification/stabilization,
- hydrodynamic dispersion parameter,
- safe reuse

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References

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