Low-temperature treatment optimization for diesel-contaminated kaolin: Mutual impacts of generated pyrolytic carbon and particle agglomeration☆
文献类型：期刊论文
| 作者 | Wei, Wei1,2,3,4; Wei, Mingli1,5; Li, Yuan6; Xue, Qiang1,3,4 ; Liu, Lei1,3,4; Wan, Yong1,3,4
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| 刊名 | ENVIRONMENTAL POLLUTION
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| 出版日期 | 2024-12-15 |
| 卷号 | 363页码:13 |
| 关键词 | Kaolin remediation Thermal treatment Aggregate distribution Removal kinetics Low-temperature treatment optimization |
| ISSN号 | 0269-7491 |
| DOI | 10.1016/j.envpol.2024.125196 |
| 英文摘要 | Efficiency improvement in low-temperature treatment for diesel-contaminated sites is urgent because changes in soil properties and the generation of new substance during the remediation process can influence the duration and energy utilization. This paper focuses on low-temperature treatment optimization based on the mutual impacts of pyrolytic carbon and kaolin aggregation. Results reveal that the peak mass loss rate occurred between 100 and 150 degrees C, with minimal loss beyond 200 degrees C. Samples thermally treated at 150-200 degrees C exhibited darker colors, indicating pyrolytic carbon formation, corroborated by x-ray photoelectron spectroscopy (XPS), fourier transform infrared spectroscopy (FTIR), and three-dimensional fluorescence spectrum (3D-EEM) analyses. Additionally, diesel contamination influenced the fractal dimension of aggregates by influencing adhesion forces (<10000 mg/kg) and forming liquid bridges (>= 10000 mg/kg) in untreated kaolin, resulting in an initial increase and subsequent fall in fractal dimension with increasing concentration. Decline rates of pollutant gas concentration were closely correlated with fractal dimension changes under thermal conditions due to pollutant volatilization and pyrolytic carbon formation. Based on the consistency between fractal dimension and decline rate, two critical remediation concentrations (C-0) and temperatures (T-0) indices were identified to optimize the low-temperature remediation. |
| 资助项目 | Special Fund for Basic Research on National Natural Science Foundation of China[U20A20320] ; Natural Science Foundation of Jiangsu Province[BK20231153] ; National Key Research and Development Program of China[2022YFC3901205] ; Foundation for Distinguished Young Scholars of Hubei Province[2021CFA096] ; Open Research Fund of State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences[SKLGME023006] ; Key Plan Project of Science and Technology of Wenzhou[ZS2021001] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001356586600001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/43166]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Wei, Mingli; Xue, Qiang |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, IRSM, HK Poly U Joint Lab Solid Waste Sci, Wuhan 430071, Peoples R China 4.Hubei Prov Key Lab Contaminated Sludge & Soil Sci, Wuhan 430071, Peoples R China 5.Jiangsu Inst Zoneco Co Ltd, Yixing 214200, Peoples R China 6.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wei, Wei,Wei, Mingli,Li, Yuan,et al. Low-temperature treatment optimization for diesel-contaminated kaolin: Mutual impacts of generated pyrolytic carbon and particle agglomeration☆[J]. ENVIRONMENTAL POLLUTION,2024,363:13. |
| APA | Wei, Wei,Wei, Mingli,Li, Yuan,Xue, Qiang,Liu, Lei,&Wan, Yong.(2024).Low-temperature treatment optimization for diesel-contaminated kaolin: Mutual impacts of generated pyrolytic carbon and particle agglomeration☆.ENVIRONMENTAL POLLUTION,363,13. |
| MLA | Wei, Wei,et al."Low-temperature treatment optimization for diesel-contaminated kaolin: Mutual impacts of generated pyrolytic carbon and particle agglomeration☆".ENVIRONMENTAL POLLUTION 363(2024):13. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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