DOI: 10.1016/j.watres.2018.05.034
Scopus记录号: 2-s2.0-85047603942
论文题名: Microplastics in sewage sludge from the wastewater treatment plants in China
作者: Li X. ; Chen L. ; Mei Q. ; Dong B. ; Dai X. ; Ding G. ; Zeng E.Y.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 142 起始页码: 75
结束页码: 85
语种: 英语
英文关键词: Land application
; Microplastic pollutants
; Sludge disposal
; Spatial distribution
; Temporal distribution
; WWTP parameters
Scopus关键词: Fourier transform infrared spectroscopy
; Industrial water treatment
; Pollution
; Polyethylenes
; Sewage pumping plants
; Sewage sludge
; Sewage treatment plants
; Spatial distribution
; Wastewater disposal
; Wastewater treatment
; Water treatment plants
; Environmental hazards
; Industrial wastewaters
; Land applications
; Microplastic pollutants
; Secondary treatment
; Temporal distribution
; Wastewater treatment plants
; WWTP parameters
; Sludge disposal
; acrylic acid
; microplastic
; plastic
; polyamide
; polyethylene
; polyolefin
; unclassified drug
; concentration (composition)
; plastic
; polymer
; sludge
; spatial distribution
; temporal distribution
; waste disposal
; wastewater
; wastewater treatment plant
; Article
; China
; Fourier transform infrared spectroscopy
; priority journal
; sampling
; sludge
; sludge dewatering
; waste water treatment plant
; China
英文摘要: Sludge disposal such as land application is suspected as a significant source of microplastic (MP) pollution in the environment. To examine such a hypothesis, the present study was conducted to investigate the occurrence of MPs in sludge by analyzing 79 sewage sludge samples collected from 28 wastewater treatment plants (WWTPs) in 11 Chinese provinces. MP concentrations in the sludge samples ranged from 1.60–56.4 × 103 particles per kilogram of dry sludge, with an average of 22.7 ± 12.1 × 103 particles per kilogram of dry sludge. Thereinto, the sludge-based MP contents were greater in eastern China than in western China and varied during different months. Their colors and types were mainly white (59.6%) and fibers (63%), respectively. Microscope Fourier Transform infrared spectroscopy revealed that most of MPs belonged to polyolefin, acrylic fibers, polyethylene and polyamide. Some WWTP parameters, such as servicing area, proportion of industrial wastewater, secondary treatment and sludge dewatering may have affected MP concentrations in sludge. Based on the total sludge production in China, the average amount of sludge-based MPs entering into natural environmental was estimated to be 1.56 × 1014 particles per year. The findings confirmed that sewage sludge discharge is an important source of MP pollution in the environment. Further evaluation of the associated environmental hazards with MPs is deemed necessary. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112603
Appears in Collections: 气候减缓与适应
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作者单位: School of Environmental and Chemical Engineering, Institute for the Conservation of Cultural Heritage, Shanghai University, Shanghai, 200444, China; State Key Laboratory of Pollution Control and Resources Reuse, National Engineering Research Center for Urban Pollution Control, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China; School of Environment, Guangzhou Key Laboratory of Environmental Exposure and Health and Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou, 510632, China
Recommended Citation:
Li X.,Chen L.,Mei Q.,et al. Microplastics in sewage sludge from the wastewater treatment plants in China[J]. Water Research,2018-01-01,142