Transport of micron-sized polyethylene particles in confined aquifer: Effects of size, aging, and confining pressure
文献类型：期刊论文
| 作者 | Chen, Xin1,3; Wan, Yong2; Jia, Jia1; Qiang, Xue2; Wu, Chenxi1 |
| 刊名 | HELIYON
 |
| 出版日期 | 2023-08-01 |
| 卷号 | 9期号:8页码:8 |
| 关键词 | Microplastics Groundwater Aging Confining pressure Transport |
| DOI | 10.1016/j.heliyon.2023.e18464 |
| 英文摘要 | Contamination of groundwater by microplastics (MPs) is increasingly reported and attracts a growing attention due to their potential risks. To understand how MPs migrate into groundwater, many previous works have investigated their transport using man-made microspheres of few microns or smaller as models. However, MPs observed in the environment are more diverse in size, shape, and type, which may have different migration behaviors. In this work, the transports of irregularly shaped polyethylene (PE) particles in the sand packed column were studied. Small MPs (22-37 & mu;m) generally have high mobility than large MPs (44-74 & mu;m) but can also be affected by aging. Aging decreased the hydrophobicity of the MPs and increased their surface negative charge, which can facilitate the transport of MPs. However, the physical barrier of space in the porous media might have a greater influence on their transport. The retention of the MPs was enhanced with the increase of pressure due to compression that decreased pore size. Results from this study showed that MPs of environmental features can also be transported in the groundwater but the processes could be governed by different factors, such as physical interception and steric hindrance. |
| 资助项目 | National Natural Science Foundation of China[41877394] ; National Natural Science Foundation of China[51909012] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA23040401] |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:001050343400001 |
| 出版者 | CELL PRESS |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/39183]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Wu, Chenxi |
| 作者单位 | 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Xin,Wan, Yong,Jia, Jia,et al. Transport of micron-sized polyethylene particles in confined aquifer: Effects of size, aging, and confining pressure[J]. HELIYON,2023,9(8):8. |
| APA | Chen, Xin,Wan, Yong,Jia, Jia,Qiang, Xue,&Wu, Chenxi.(2023).Transport of micron-sized polyethylene particles in confined aquifer: Effects of size, aging, and confining pressure.HELIYON,9(8),8. |
| MLA | Chen, Xin,et al."Transport of micron-sized polyethylene particles in confined aquifer: Effects of size, aging, and confining pressure".HELIYON 9.8(2023):8. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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