DOI: 10.1016/j.watres.2019.02.046
Scopus记录号: 2-s2.0-85062429335
论文题名: Removal of microplastics in municipal sewage from China's largest water reclamation plant
作者: Yang L. ; Li K. ; Cui S. ; Kang Y. ; An L. ; Lei K.
刊名: Water Research
ISSN: 431354
出版年: 2019
卷: 155 起始页码: 175
结束页码: 181
语种: 英语
英文关键词: Effluents
; Microplastics
; Point source
; Reclaimed water
; μFT-IR
英文摘要: Municipal sewage treatment plants (STPs) are an important point source of microplastics in domestic waterways. In the present study, effluents from the largest water reclamation plant in China were sampled throughout the treatment process and microplastics were extracted and identified to evaluate their removal. As expected, microplastics were detected in the influent (12.03 ± 1.29 items/L). Following treatment, concentrations of microplastics were reduced by greater than 95% and 0.59 ± 0.22 items/L of microplastics were detected in reclaimed waters. Among detected microplastics, 18 types of polymers of ten colors were identified. Polyethylene terephthalate (PET), polystyrene (PS) and polypropylene (PP) accounted for greater than 70% of detected microplastics. Furthermore, microfibers were the dominant shape detected with an average size of 1110.72 ± 862.95 μm. However, microparticles accounted for only 14.08% of total microplastics with an average size of 681.46 ± 528.73 μm. Results of the present study suggest that current treatment technologies employed at the chosen STP are efficient to remove the majority of microplastics, however consideration of STPs as a point source of microplastics is important due to the large volumes of effluents being released into the aquatic environment on a consistent basis. © 2019 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/121900
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China; Research and Development Center, Beijing Drainage Group Co.LTD, Beijing, 100022, China; School of Water Conservancy and Civil Engineering, Northeast Agricultural University, HarBin, 150030, China; Analysis and Test Center, Beijing University of Chemical Technology, Beijing, 100029, China
Recommended Citation:
Yang L.,Li K.,Cui S.,et al. Removal of microplastics in municipal sewage from China's largest water reclamation plant[J]. Water Research,2019-01-01,155