Decreased particle size enhances the aging behavior of microplastics during sewage sludge composting: Physicochemical properties and cadmium loading
文献类型：期刊论文
| 作者 | Liu, Zhihao2,4; Liu, Hongtao3; Wang, Lixia1; Zhang, Jun2,4 |
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2025-06-15 |
| 卷号 | 490页码:137779 |
| 关键词 | Aerobic composting Microplastics aging Particle size Cadmium loading |
| ISSN号 | 0304-3894 |
| DOI | 10.1016/j.jhazmat.2025.137779 |
| 产权排序 | 2 |
| 文献子类 | Article |
| 英文摘要 | Although aerobic composting is capable of aging microplastics (MPs), the influence of size on MPs aging during composting and loading of cadmium (Cd) remains unclear. Therefore, we investigated variations in the physicochemical properties of polyethylene terephthalate microplastics (PET-MPs) with different sizes (1.0 -5.0, 0.2 -1.0, and 0.05 -0.2 mm) during composting and the concentration of Cd accumulated on the surface of different-sized aged PET-MPs. The results indicated that PET-MPs exhibited size-dependent as they aged during composting, with smaller sizes aging faster. After composting, the 0.05 -0.2 mm PET(-)MPs had the greatest increase in specific surface area (205.5 %), compared with the 1.0 -5.0 mm (18.7 %) and 0.2 -1.0 mm (95.6 %) PET-MPs. The greatest increase in the carbonyl index/oxygen-to-carbon atom ratio was also observed for the 0.05 -0.2 mm PET-MPs, which were 2.25 / 3.27 and 0.02 / 2.11 times higher than those of the 1.0 -5.0 mm and 0.2-1.0 mm PET-MPs, respectively. Similarly, size-dependent accumulation of Cd on the aged PET-MPs was also observed: 0.05-0.2 mm (5.37 mg/kg Cd) > 0.2 -1.0 mm (2.90 mg/kg Cd) > 1.0-5.0 mm (0.78 mg/kg Cd). These findings demonstrate that the aging behavior of polymer is closely related to their size, emphasizing the role of size in the fate and pollutant loading of polymer. |
| URL标识 | 查看原文 |
| WOS关键词 | WATER TREATMENT PLANTS ; EXPOSURE ; METALS |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001438189600001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/213206]  |
| 专题 | 黄河三角洲现代农业工程实验室_外文论文 |
| 通讯作者 | Liu, Hongtao; Zhang, Jun |
| 作者单位 | 1.Chinese Acad Sci, Northeast Inst Geog & Agroecol, State Key Lab Black Soils Conservat & Utilizat, Changchun 130102, Peoples R China 2.Guilin Univ Technol, Coll Environm Sci & Engn, Guilin 541004, Peoples R China; 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China; 4.Guilin Univ Technol, Guangxi Key Lab Environm Pollut Control Theory & T, 12 Jiangan Rd, Guilin 541004, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Liu, Zhihao,Liu, Hongtao,Wang, Lixia,et al. Decreased particle size enhances the aging behavior of microplastics during sewage sludge composting: Physicochemical properties and cadmium loading[J]. JOURNAL OF HAZARDOUS MATERIALS,2025,490:137779. |
| APA | Liu, Zhihao,Liu, Hongtao,Wang, Lixia,&Zhang, Jun.(2025).Decreased particle size enhances the aging behavior of microplastics during sewage sludge composting: Physicochemical properties and cadmium loading.JOURNAL OF HAZARDOUS MATERIALS,490,137779. |
| MLA | Liu, Zhihao,et al."Decreased particle size enhances the aging behavior of microplastics during sewage sludge composting: Physicochemical properties and cadmium loading".JOURNAL OF HAZARDOUS MATERIALS 490(2025):137779. |
入库方式： OAI收割
来源：地理科学与资源研究所
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