Effect of Heat-Treatment Remediation on the Mechanical Behavior of Oil-Contaminated Soil
The heat treatment of oil-contaminated sites is widely carried out for the purposes of remediation. However, heat treatment changes the physical and chemical properties of soil. Before the soil can be reused as a construction material in civil engineering, such as in backfill or road base materials,...
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| Format: | Article |
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MDPI AG
2020-05-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/9/3174 |
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| author | Meng-Chia Weng Chiou-Liang Lin Cheng-Hsi Lee |
| author_facet | Meng-Chia Weng Chiou-Liang Lin Cheng-Hsi Lee |
| author_sort | Meng-Chia Weng |
| collection | DOAJ |
| description | The heat treatment of oil-contaminated sites is widely carried out for the purposes of remediation. However, heat treatment changes the physical and chemical properties of soil. Before the soil can be reused as a construction material in civil engineering, such as in backfill or road base materials, the changes to its physical properties must be understood. Therefore, this study investigates the changes in the physical and chemical properties of oil-contaminated soil after heat treatment. In this investigation, experimental samples of soil with added oil from a refinery plant are used to investigate the removal rate of total petroleum hydrocarbons (TPHs) by thermal desorption and incineration. The physical properties of the soil, including water permeability and mechanical properties, are compared before and after heat treatment. The results of this study are as follows. (1) Particle size analysis reveals that heat treatment makes soil particles finer. (2) In the burning reduction test, heat treatment at 900 °C removes more than 90% of THP. (3) In the direct shear test, the friction angle (ϕ) increases with the removal rate. (4) In the hydraulic test, as the removal rate increases, the permeability coefficient increases after heat treatment. |
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| id | doaj.art-74fbec4db81a438c9898b57fe2f1c354 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T20:05:26Z |
| publishDate | 2020-05-01 |
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| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-74fbec4db81a438c9898b57fe2f1c3542023-11-19T23:19:02ZengMDPI AGApplied Sciences2076-34172020-05-01109317410.3390/app10093174Effect of Heat-Treatment Remediation on the Mechanical Behavior of Oil-Contaminated SoilMeng-Chia Weng0Chiou-Liang Lin1Cheng-Hsi Lee2Department of Civil Engineering, National Chiao Tung University, Hsinchu 300, TaiwanDepartment of Civil and Environmental Engineering, National University of Kaohsiung, Kaohsiung 811, TaiwanDepartment of Civil and Environmental Engineering, National University of Kaohsiung, Kaohsiung 811, TaiwanThe heat treatment of oil-contaminated sites is widely carried out for the purposes of remediation. However, heat treatment changes the physical and chemical properties of soil. Before the soil can be reused as a construction material in civil engineering, such as in backfill or road base materials, the changes to its physical properties must be understood. Therefore, this study investigates the changes in the physical and chemical properties of oil-contaminated soil after heat treatment. In this investigation, experimental samples of soil with added oil from a refinery plant are used to investigate the removal rate of total petroleum hydrocarbons (TPHs) by thermal desorption and incineration. The physical properties of the soil, including water permeability and mechanical properties, are compared before and after heat treatment. The results of this study are as follows. (1) Particle size analysis reveals that heat treatment makes soil particles finer. (2) In the burning reduction test, heat treatment at 900 °C removes more than 90% of THP. (3) In the direct shear test, the friction angle (ϕ) increases with the removal rate. (4) In the hydraulic test, as the removal rate increases, the permeability coefficient increases after heat treatment.https://www.mdpi.com/2076-3417/10/9/3174heat treatmentoil-contaminated soilpermeabilitysoil pollutionremediation |
| spellingShingle | Meng-Chia Weng Chiou-Liang Lin Cheng-Hsi Lee Effect of Heat-Treatment Remediation on the Mechanical Behavior of Oil-Contaminated Soil Applied Sciences heat treatment oil-contaminated soil permeability soil pollution remediation |
| title | Effect of Heat-Treatment Remediation on the Mechanical Behavior of Oil-Contaminated Soil |
| title_full | Effect of Heat-Treatment Remediation on the Mechanical Behavior of Oil-Contaminated Soil |
| title_fullStr | Effect of Heat-Treatment Remediation on the Mechanical Behavior of Oil-Contaminated Soil |
| title_full_unstemmed | Effect of Heat-Treatment Remediation on the Mechanical Behavior of Oil-Contaminated Soil |
| title_short | Effect of Heat-Treatment Remediation on the Mechanical Behavior of Oil-Contaminated Soil |
| title_sort | effect of heat treatment remediation on the mechanical behavior of oil contaminated soil |
| topic | heat treatment oil-contaminated soil permeability soil pollution remediation |
| url | https://www.mdpi.com/2076-3417/10/9/3174 |
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