Effects of typical sludge treatment on microplastics in China-Characteristics, abundance and micro-morphological evidence
文献类型：期刊论文
| 作者 | Li, Xin-yu1,2; Liu, Hong-tao1,3; Wang, Li-xia4; Guo, Hao-nan1,2; Zhang, Jun5; Gao, Ding1 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2022-06-20 |
| 卷号 | 826页码:8 |
| 关键词 | Microplastics Sludge Composting Thermal hydrolysis Morphological characteristics |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2022.154206 |
| 通讯作者 | Liu, Hong-tao(liuht@igsnrr.ac.cn) |
| 英文摘要 | Microplastics (MPs) are emerging pollutants that are enriched in sludge. They enter soil through sludge soil amendment, landfill, and discard, which will cause inescapable environmental pollution risks. Sludge treatment technology commonly used in China include anaerobic digestion (AD), thermal drying (TD), thermal hydrolysis (TH) and aerobic composting (AC). In this study, characteristics of MPs in sewage sludge from four representative large cities in China (Zhengzhou, Chongqing, Guangzhou, and Guilin) were analyzed. Effects of four representative sludge treatment technology on sludge MPs were also studied. In addition, the amount of MPs input to soil from sludge in China was estimated. The abundance range of sludge MPs of representative cities in China was 1448-11,125 n.kg(-1) DW. Previous studies indicate that this abundance range is low among other domestic cities and is close to that of European countries. MPs were predominantly fiber-shaped, accounting for 46.66%; 56.5% MPs were white and transparent, and 62.5% were polypropylene and polyethylene. The abundance of MPs in the sludge increased after TH, indicating that MPs broke into smaller particles. However, the other three treatment methods had no significant influence on the abundance of MPs. Scanning electron microscopy analysis showed that the micro-morphology of sludge MPs surface were rougher after AD, and MPs cracked following TD and TH. Furthermore, broken edges were more blurred after TH, and surfaces of MPs were damaged and eroded after AC. The input quantities of MPs in sludge to soil was deduced to be 10(13 )particles per year. These results are important for controlling the potential risk of sludge MPs in China. |
| WOS关键词 | WATER TREATMENT-PLANT ; WASTE-WATER ; SEWAGE-SLUDGE ; IDENTIFICATION ; BIOSOLIDS ; POLLUTION ; REMOVAL ; SOIL |
| 资助项目 | National Natural Science Foundation of China[51978642] ; Ko-chen Outstanding Young Scholars Program of the Institute of Geographic Sciences and Natural Resources Research, CAS[2017RC102] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000790510100011 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; Ko-chen Outstanding Young Scholars Program of the Institute of Geographic Sciences and Natural Resources Research, CAS |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/176094]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Liu, Hong-tao |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Engn Lab Yellow River Delta Modern Agr, Beijing 100101, Peoples R China 4.Chinese Acad Sci, Northeast Inst Geog & Agroecol, Changchun 130102, Peoples R China 5.Guilin Univ Technol, Guangxi Key Lab Environm Pollut Control Theory & T, Guilin 541004, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Xin-yu,Liu, Hong-tao,Wang, Li-xia,et al. Effects of typical sludge treatment on microplastics in China-Characteristics, abundance and micro-morphological evidence[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2022,826:8. |
| APA | Li, Xin-yu,Liu, Hong-tao,Wang, Li-xia,Guo, Hao-nan,Zhang, Jun,&Gao, Ding.(2022).Effects of typical sludge treatment on microplastics in China-Characteristics, abundance and micro-morphological evidence.SCIENCE OF THE TOTAL ENVIRONMENT,826,8. |
| MLA | Li, Xin-yu,et al."Effects of typical sludge treatment on microplastics in China-Characteristics, abundance and micro-morphological evidence".SCIENCE OF THE TOTAL ENVIRONMENT 826(2022):8. |
入库方式： OAI收割
来源：地理科学与资源研究所
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