Changes in the health of metal-contaminated soil before and after stabilization and solidification

Kim, S. J.; Choi, Jaeyoung; Jeong, Seung‐Woo

doi:10.1016/j.envpol.2023.121929

Cited by 7 publications

(4 citation statements)

References 32 publications

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“…The ∆SHIs of RA/CA, AG/CA, and FO/CA soils were approximately 1%, 7%, and 8%, respectively, indicating that the soil health of the uncontaminated soil was superior to that of the contaminated soil, albeit not substantially. Kim et al [20] reported changes in soil health of metal contaminated soil before and after the application of five metal stabilizers, including acid mine drainage sludge, coal mine drainage sludge, steel slag, lime, and cement. Consequently, the SHIs of all stabilized soils became 'bad' or 'very bad' while the contaminated soil was evaluated as 'normal' due to the soil disturbance caused by the application of stabilizers.…”

Section: Scores Of Soil Health Index (Shi)mentioning

confidence: 99%

“…The effects of combining immobilization and soil dressing techniques on soil properties and functions have been subject to controversy regarding whether they are beneficial or detrimental [13,16,[19][20][21]. For instance, pH increases caused by lime application increased the cation exchange capacity of soils [22].…”

Section: Introductionmentioning

confidence: 99%

“…Soil dressing can disturb soil physical and chemical properties, depending on the cover soil used, thus reducing crop productivity [16,21] and diversity of the soil biotic community [24,25]. However, integrating multiple remediation methods aims to enhance the effectiveness of soil remediation efforts in lowering pollutant levels and minimizing potential risks associated with heavy-metal contamination in agricultural environments [20,26,27].…”

Section: Introductionmentioning

confidence: 99%

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Combining Soil Immobilization and Dressing Techniques for Sustaining the Health of Metal-Contaminated Arable Soils

Yoon,

Lee,

Park

et al. 2024

Sustainability

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The combination of lime immobilization of metals and soil dressing has been a prevalent practice in Korea for remediating metal-contaminated arable soils. However, there have been limited reports on whether this method effectively sustains soil health after remediation, particularly in arable soils. This study undertook a comparative assessment of the soil health index (SHI) across metal-contaminated arable lands, arable soils remediated with lime immobilization and soil dressing, and uncontaminated soils. A total 389 soil samples were collected from these sites and analyzed for nineteen indicators encompassing physical, chemical, and biological properties. To assess soil health, these indicators were screened using principal component analysis, yielding five minimum data set (MDS) indicators: total nitrogen, clay content, dehydrogenase activity, bacterial colony-forming units, and available phosphorus. Among these MDS indicators, total nitrogen exhibited the highest value as the principal component contributing to soil health assessment. Scores of the MDS indicators exhibited significant correlation with those of total data set indicators, affirming the appropriateness of the soil health assessment adopted in this study. The SHI of the remediated arable soils (0.48) surpassed those of the contaminated soils (0.47) and were statistically comparable to those of the uncontaminated forest (0.51) and upland (0.51) soils. The health of the contaminated soils demonstrated a high dependence on soil properties rather than metal concentrations. These findings underscore the robustness of the combined immobilization and soil dressing method for sustaining the health of contaminated arable soils post-remediation.

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Section: Scores Of Soil Health Index (Shi)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Combining Soil Immobilization and Dressing Techniques for Sustaining the Health of Metal-Contaminated Arable Soils

Yoon,

Lee,

Park

et al. 2024

Sustainability

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“…Soils contaminated with heavy metals (HMs) have been reported worldwide in industrial regions, agricultural regions, (Yang et al, 2019) and mining areas (Kim et al, 2023). According to China's Ministry of Natural Resources, the area of heavy metal‐contaminated soil in 2020 was approximately 20 million hectares, accounting for more than 10% of the cultivated land (Shi et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Phytoremediation of heavy metal and tetracycline co‐contaminated soil by Solanum nigrum L.: Response of tetracycline‐resistant genes

Li,

Guo,

et al. 2024

Land Degrad Dev

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Co‐contamination with heavy metals (HMs) and tetracyclines (TCs) in soils has been widely reported and has resulted in serious consequences, such as the diffusion of tetracycline‐resistant genes (TRGs). Phytoremediation displays high potential for the remediation of co‐contaminated soils. Here, we chose a Cd hyperaccumulator (Solanum nigrum L.) to explore the accumulation of HMs in plants and the effect of TRG diffusion in HM‐TC‐contaminated soil by conducting a pot experiment. The results showed that the shoot biomass of S. nigrum L. decreased by 28.39%–73.00% in treatments with HM (Cd and Cu) contamination singly caused by the toxicity of a nontarget element (Cu). The Cd concentrations in S. nigrum L. shoots increased by 30 times, while the Cu concentrations increased by less than 3 times. The bioconcentration factors (BCFs) and translocation factors (TFs) of Cd ranged from 1.05 to 7.98 and 0.80 to 2.27, respectively, which decreased with increasing TC concentrations in most treatments. The TC residuals in soils increased greatly with increasing TC and HM concentrations. Their concentrations in S. nigrum L. tissues followed the order chlorotetracycline > tetracycline > oxytetracycline. Phytoremediation stimulated the growth of soil microorganisms and increased the abundance of mobile genetic elements (intI 1) and TRGs, especially efflux pump genes (tet C and tet G, which increased 2.97 and 4.13 logs after phytoremediation, respectively). Our results suggested that phytoremediation had a high potential for HM and TC removal; however, it increased the diffusion risk of TRGs, especially for efflux pump genes that functioned in both HM and TC resistance.

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Cooperative effect of citric acid and pyrite on the slow-release of silicon from coal gangue and the stabilization of arsenic: Implications for soil remediation

Lyu,

Feng,

Zhan

et al. 2024

J. Cent. South Univ.

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Changes in the health of metal-contaminated soil before and after stabilization and solidification

Cited by 7 publications

References 32 publications

Combining Soil Immobilization and Dressing Techniques for Sustaining the Health of Metal-Contaminated Arable Soils

Combining Soil Immobilization and Dressing Techniques for Sustaining the Health of Metal-Contaminated Arable Soils

Phytoremediation of heavy metal and tetracycline co‐contaminated soil by Solanum nigrum L.: Response of tetracycline‐resistant genes

Cooperative effect of citric acid and pyrite on the slow-release of silicon from coal gangue and the stabilization of arsenic: Implications for soil remediation

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