DOI: 10.1016/j.watres.2018.01.049
Scopus记录号: 2-s2.0-85041410872
论文题名: Occurrence, identification and removal of microplastic particles and fibers in conventional activated sludge process and advanced MBR technology
作者: Lares M. ; Ncibi M.C. ; Sillanpää M. ; Sillanpää M.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 133 起始页码: 236
结束页码: 246
语种: 英语
英文关键词: Identification
; Microplastics
; Sludge
; Wastewater
; WWTP
Scopus关键词: Biological water treatment
; Bioreactors
; Collector efficiency
; Efficiency
; Effluents
; Fourier transform infrared spectroscopy
; Identification (control systems)
; Microscopes
; Wastewater
; Wastewater treatment
; Conventional activated sludges
; Fourier transform infrared
; Identification and removal
; Membrane bioreactor technology
; Microplastics
; Sludge
; Wastewater treatment plants
; WWTP
; Activated sludge process
; microplastic
; plastic
; unclassified drug
; water
; plastic
; activated sludge
; bioreactor
; biotechnology
; effluent
; identification method
; plastic
; pollutant removal
; sampling
; wastewater
; wastewater treatment
; wastewater treatment plant
; activated sludge
; aquatic environment
; Article
; comparative study
; controlled study
; environmental impact
; infrared spectroscopy
; microscopy
; nonhuman
; particle size
; plastic industry
; priority journal
; Raman spectrometry
; waste water treatment plant
; analysis
; artificial membrane
; bioreactor
; procedures
; sewage
; water pollutant
; Bioreactors
; Membranes, Artificial
; Plastics
; Sewage
; Waste Disposal, Fluid
; Water Pollutants, Chemical
英文摘要: Wastewater treatment plants (WWTPs) are acting as routes of microplastics (MPs) to the environment, hence the urgent need to examine MPs in wastewaters and different types of sludge through sampling campaigns covering extended periods of time. In this study, the efficiency of a municipal WWTP to remove MPs from wastewater was studied by collecting wastewater and sludge samples once in every two weeks during a 3-month sampling campaign. The WWTP was operated based on the conventional activated sludge (CAS) process and a pilot-scale membrane bioreactor (MBR). The microplastic particles and fibers from both water and sludge samples were identified by using an optical microscope, Fourier Transform Infrared (FTIR) microscope and Raman microscope. Overall, the retention capacity of microplastics in the studied WWTP was found to be 98.3%. Most of the MP fraction was removed before the activated sludge process. The efficiency of an advanced membrane bioreactor (MBR) technology was also examined. The main related finding is that MBR permeate contained 0.4 MP/L in comparison with the final effluent of the CAS process (1.0 MP/L). According to this study, both microplastic fibers and particles are discharged from the WWTP to the aquatic environment. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112933
Appears in Collections: 气候减缓与适应
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作者单位: Lappeenranta University of Technology, School of Engineering Science, Laboratory of Green Chemistry, Sammonkatu 12, Mikkeli, FI-50130, Finland; Finnish Environment Institute, Laboratory Centre, Ecotoxicology and Risk Assessment, Ultramariinikuja 4, Helsinki, FI-00430, Finland; Department of Civil and Environmental Engineering, Florida International University, Miami, FL-33174, United States
Recommended Citation:
Lares M.,Ncibi M.C.,Sillanpää M.,et al. Occurrence, identification and removal of microplastic particles and fibers in conventional activated sludge process and advanced MBR technology[J]. Water Research,2018-01-01,133