The improvement of pore characteristics, remediation efficiency, and biotoxicity of petroleum-contaminated soil with the addition of bulking agent on field-scale biopile treatment

Jiang, Jiaojiao; Wang, Shijie; Wang, Li´ao; Lv, Quanwei; Yang, Yinghuan; Chen, Kejin; Liu, Lingyue; Wang, Xiang

doi:10.1007/s11368-021-02992-1

Cited by 4 publications

(2 citation statements)

References 44 publications

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“…Water pollution from soil management is affected by soil amendment type, rainfall intensity and interval, as well as topography and hydrogeology conditions (Wang, Guo, et al, 2022; Wang, Wang, et al, 2023; Yang et al, 2022). A study in Ireland found that increasing the time interval between slurry application and first rainfall event to 49 days could reduce phosphorus loading in runoff by 80% (O'Rourke et al, 2022).…”

Section: Ecosystem Service: Water Qualitymentioning

confidence: 99%

Soil health and ecosystem services

Hou

2023

Soil Use and Management

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Section: Ecosystem Service: Water Qualitymentioning

confidence: 99%

Soil health and ecosystem services

Hou

2023

Soil Use and Management

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“…Among the various contaminants that raise concerns for public health, the contamination of soil by heavy metals and metalloids, such as cadmium (Cd) and arsenic (As), presents a formidable environmental challenge (Hou, O'Connor, et al., 2020; Jia et al., 2021; Wang, Guo, et al., 2023). Specifically, Southwest China, for example, stands out as a focal point for heavy metal(loid) contamination (Wang, Wang, et al., 2023; Wu et al., 2022; Zong et al., 2023). This issue arises not only from human activities like mining, smelting, and traffic but also from the natural weathering of metal(loid)‐enriched parent rocks (Wang, Jin, et al., 2021; Wen et al., 2020; Zhao et al., 2023).…”

Section: Introductionmentioning

confidence: 99%

Biochar amendment gradually immobilized soil As and Sb over 2 years

Hu,

Wang,

Mašek

et al. 2024

Soil Use and Management

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Biochar is a promising candidate for the sustainable remediation of soils, especially those contaminated with cationic heavy metals, because of its liming effect and tunable surface functionality. Despite its potential, prior studies have highlighted biochar's limitations in immobilizing soil oxyanions, such as arsenic (As) and antimony (Sb), particularly in the short term. This shotcoming is primarily attributed to an increase of soil pH following biochar amendment, and factors like competition with phosphate. In this study, biochar amendments were applied to three soils with varying levels of oxyanions including As and Sb, and cations including cadmium (Cd) and lead (Pb). These treatments generally resulted in short‐term failure of oxyanion immobilization. However, a noteworthy phenomenon unfolded over a 2‐year period, where biochars gradually transitioned from initial mobilization or poor immobilization to eventual successful immobilization of oxyanions (up to 87.0% for As and 100% for Sb). Temporal changes in Cd and Pb differed from As and Sb, exhibiting no improvement in immobilization rates over time. Potential mechanisms driving this process were investigated, suggesting a decline in soil pH, progressive oxidation of soil carbon fractions, and direct adsorption effects as contributing factors. This study sheds light on the temporal shift in biochar's immobilization performance, highlighting a gradual increase in the efficacy in oxyanion immobilization. The findings offer valuable insights into the dynamic nature of biochar's remediation capabilities.

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