Evolution of the pore structure and permeability of thermally desorbed diesel-contaminated soils

Chun, Yeyang; Liu, Zonghui; Liu, Chenhui; Dong, Ziwen; Huang, Zheng; Su, Jian; Liang, Tenglong

doi:10.1007/s11440-023-01894-5

Cited by 4 publications

(1 citation statement)

References 122 publications

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“…Creating a three-dimensional pore network model shows the pros and cons of assessing soil connectedness. The quantitative study of pores, throats, and ligand count can reveal soil connection details (Chun et al 2023;Liu et al 2023). Euler number and tortuosity both characterize pores' complexity.…”

Section: Resultsmentioning

confidence: 99%

Effects of microplastics on the porosity and connectivity with different soil textures: Based on CT scanning

Wang,

Li,

et al. 2023

Preprint

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Microplastics-contaminated soils exhibit disordered pore architecture. However, research on soil pores' morphological features and connectivity under microplastics endowment needs to be more extensive. This research used computed tomography and three-dimensional visualization tools to quantitatively analyze the micropore structure of sandy soils, sandy loam, and loamy soils after microplastics endowment, and we also built a pore network model. The findings revealed that microplastics deposition considerably altered the spatial structure of the pores and reduced soil porosity. The effects of microplastics accumulation on soil pore morphology and connectivity varied greatly between soil textures, with connected pores in sandy soils and sandy loams partially or completely disappearing and connected pores in loamy soils changing from a complex spatial structure to a monolayer sheet. Furthermore, as the abundance of microplastics increases, the soil pore network model becomes more straightforward, and the Euler number and tortuosity increase, which leads to the hydraulic conductivity declines. Finally, the microplastics endowment caused significant damage to the soil's connectivity and reduced its infiltration ability.

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Section: Resultsmentioning

confidence: 99%

Effects of microplastics on the porosity and connectivity with different soil textures: Based on CT scanning

Wang,

Li,

et al. 2023

Preprint

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Bimetallic Mn-Ce oxides modified α-Fe2O3 nanorods for low temperature catalytic thermal desorption of naphthalene in soil

Sun,

Zhu,

Hou

et al. 2024

Chemical Engineering Journal

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Geotechnical evaluation of residual granitic soils contaminated with gasoline

Gomes,

Teixeira,

Studart

et al. 2024

Preprint

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Human activity brings several risks of contamination with pollutants of varying types and effects, with hydrocarbon compounds being of great concern as they are released by vehicles, industrial and construction activities and in areas with fuel reservoirs, among others. Hence, when these contaminants reach the soil, a legitimate question arises regarding their impact on the soil's resistance characteristics. This work presents a case study of granite residual soils contaminated with gasoline under 8-, 16-, and 32-days. Physical and mechanical characterization were conducted. Direct shear tests have stated high enhancement in cohesion of the samples contaminated with gasoline, exposing their lubrification effect while enveloping the particles grains. CBR and structural analysis values exposed support capacity reduction up to 16%, probably due to the gasoline´s aggressiveness as a chemical agent, altering the general structure of the soil. It seems that gasoline is a complex addition to the soil-water-air interaction, possibly transforming the soil into a hydrophobic material and thus separating the water as the connecting agent, affecting the overall structure and support capacity of the soil.

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Evolution of the pore structure and permeability of thermally desorbed diesel-contaminated soils

Cited by 4 publications

References 122 publications

Effects of microplastics on the porosity and connectivity with different soil textures: Based on CT scanning

Effects of microplastics on the porosity and connectivity with different soil textures: Based on CT scanning

Bimetallic Mn-Ce oxides modified α-Fe2O3 nanorods for low temperature catalytic thermal desorption of naphthalene in soil

Geotechnical evaluation of residual granitic soils contaminated with gasoline

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