Effects of virgin microplastics on the transport of Cd (II) in Xiangjiang River sediment
文献类型：期刊论文
| 作者 | Li, Yougong1,3; Chen, Ming2; Gong, Jilai1,3; Song, Biao1,3; Shen, Maocai1,3; Zeng, Guangming1,3 |
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2021-11-01 |
| 卷号 | 283页码:10 |
| 关键词 | Microplastics Cadmium Adsorption Transport River sediment |
| ISSN号 | 0045-6535 |
| DOI | 10.1016/j.chemosphere.2021.131197 |
| 通讯作者 | Zeng, Guangming(zgming@hnu.edu.cn) |
| 英文摘要 | River sediments are considered as sinks of microplastics (MPs). Although numerous studies have been conducted on MPs pollution in river sediments, the impact of MPs on the environmental behavior of Cd (II) in river sediments is still unknown. In this work, the effects of six MPs (polyethylene, polypropylene, polystyrene, polyvinyl chloride, polymethyl methacrylate and polylactic acid) on the adsorption of Cd (II) by Xiangjiang River sediment and the transport of Cd (II) in sediment were studied. The results showed that the adsorption ability of sediment to Cd (II) decreased with the increase of the content of MPs in sediment. When the content of MPs in sediment increased to 10%, polypropylene had the greatest effect on the adsorption affinity of sediments to Cd (II). Moreover, the addition of MPs accelerated transport of Cd (II) in sediment, and the transport of Cd (II) in sediment increased with the increase of the content of MPs. The reason may be that after adding MPs, the adsorption capacity of sediment to Cd (II) decreases, and the mass transfer resistance of Cd (II) to sediment reduces, which leads to faster transport of Cd (II) in sediment. Especially, when the content of MPs in sediment increased to 10% (w/w), the saturation point of the breakthrough curve decreased by about 70 pore volumes. This work hopes to provide helpful views on the environmental behavior and risk assessment of Cd (II) in the presence of MPs. |
| 资助项目 | National Natural Science Foundation of China[U20A20323] ; National Natural Science Foundation of China[51521006] ; National Natural Science Foundation of China[51579095] ; National Natural Science Foundation of China[51378190] ; Program for Changjiang Scholars and Innovative Research Team in University[IRT-13R17] ; China National Postdoctoral Program for Innovative Talents[BX20200119] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000692109400009 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/14239]  |
| 专题 | 中国科学院重庆绿色智能技术研究院 |
| 通讯作者 | Zeng, Guangming |
| 作者单位 | 1.Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Peoples R China 2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Key Lab Reservoir Aquat Environm, Chongqing 400714, Peoples R China 3.Hunan Univ, Key Lab Environm Biol & Pollut Control, Minist Educ, Changsha 410082, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Yougong,Chen, Ming,Gong, Jilai,et al. Effects of virgin microplastics on the transport of Cd (II) in Xiangjiang River sediment[J]. CHEMOSPHERE,2021,283:10. |
| APA | Li, Yougong,Chen, Ming,Gong, Jilai,Song, Biao,Shen, Maocai,&Zeng, Guangming.(2021).Effects of virgin microplastics on the transport of Cd (II) in Xiangjiang River sediment.CHEMOSPHERE,283,10. |
| MLA | Li, Yougong,et al."Effects of virgin microplastics on the transport of Cd (II) in Xiangjiang River sediment".CHEMOSPHERE 283(2021):10. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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