DOI: 10.1016/j.watres.2018.03.011
Scopus记录号: 2-s2.0-85046014953
论文题名: Seeing is believing: Insights from synchrotron infrared mapping for membrane fouling in osmotic membrane bioreactors
作者: Luo W. ; Arhatari B. ; Gray S.R. ; Xie M.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 137 起始页码: 355
结束页码: 361
语种: 英语
英文关键词: Foulant penetration
; Fouling distribution
; Membrane fouling
; Micro X-ray computed tomography
; Osmotic membrane bioreactor
; Synchrotron infrared mapping
Scopus关键词: Bioconversion
; Bioreactors
; Carbohydrates
; Computerized tomography
; Fourier transform infrared spectroscopy
; Mapping
; Membrane fouling
; Osmosis
; Proteins
; Surface treatment
; X rays
; Attenuated total reflection modes
; Forward osmosis membrane
; Foulant penetration
; Fouling mechanisms
; Membrane bioreactor
; Micro-x-ray
; Protein adsorption
; Relative intensity
; Membranes
; carbohydrate
; polysaccharide
; protein
; carbohydrate
; protein
; adsorption
; biofouling
; bioreactor
; carbohydrate
; infrared radiation
; membrane
; osmosis
; protein
; spatial distribution
; tomography
; activated sludge
; Article
; fouling control
; infrared radiation
; osmosis
; priority journal
; surface property
; water analysis
; x-ray computed tomography
; artificial membrane
; biofouling
; bioreactor
; devices
; infrared spectroscopy
; osmosis
; procedures
; synchrotron
; water management
; Biofouling
; Bioreactors
; Carbohydrates
; Membranes, Artificial
; Osmosis
; Proteins
; Spectroscopy, Fourier Transform Infrared
; Synchrotrons
; Tomography, X-Ray Computed
; Water Purification
英文摘要: We employed synchrotron infrared (IR) mapping to resolve forward osmosis (FO) membrane fouling in osmotic membrane bioreactor (OMBR). Synchrotron IR mapping offers a unique perspective to elucidate the fouling mechanisms and associated consequences in OMBR operation. We demonstrated the spatial distribution and relative intensity of carbohydrate and protein longitudinally along of the fouled FO membrane at the conclusion of OMBR operation. Both transmission and attenuated total reflection (ATR) modes were used to map the cross-section and surface of the fouled FO membrane. Micro X-ray computed tomography revealed patchy, “sand-dune” features on the membrane surface at the conclusion of OMBR operation. Synchrotron IR-ATR mapping demonstrated that the development of membrane fouling layer in OMBR operation was initiated by polysaccharide-like carbohydrate, followed by layering with protein-like substance, resulting in a characteristic “sand-dune” three dimensional feature. Synchrotron FTIR mapping shed light on foulant occurrence and accumulation in the draw solution. Strong penetration of protein-like substance into membrane matrix was visualised, resulting the detection of protein adsorption in the region of membrane supporting layer. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112828
Appears in Collections: 气候减缓与适应
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作者单位: Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China; ARC Centre of Excellence for Advanced Molecular Imaging, Department of Chemistry and Physics, La Trobe UniversityVictoria 3086, Australia; Institute for Sustainability and Innovation, College of Engineering and Science, Victoria University, PO Box 14428, Melbourne, Victoria 8001, Australia
Recommended Citation:
Luo W.,Arhatari B.,Gray S.R.,et al. Seeing is believing: Insights from synchrotron infrared mapping for membrane fouling in osmotic membrane bioreactors[J]. Water Research,2018-01-01,137