DOI: 10.1016/j.watres.2017.12.059
Scopus记录号: 2-s2.0-85039867616
论文题名: Fouling development in direct contact membrane distillation: Non-invasive monitoring and destructive analysis
作者: Fortunato L. ; Jang Y. ; Lee J.-G. ; Jeong S. ; Lee S. ; Leiknes T. ; Ghaffour N.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 132 起始页码: 34
结束页码: 41
语种: 英语
英文关键词: Direct contact membrane distillation (DCMD)
; Fouling mechanism
; On-line monitoring
; Optical coherence tomography (OCT)
; Scaling
; Seawater desalination
Scopus关键词: Desalination
; Distillation
; Fouling
; Liquid chromatography
; Optical tomography
; Organic carbon
; Seawater
; Sulfur compounds
; Voltage measurement
; Water vapor
; Direct contact membrane distillation
; Fouling mechanisms
; Online monitoring
; Scaling
; Seawater desalination
; Membranes
; biopolymer
; calcium sulfate
; inorganic salt
; organic carbon
; organic compound
; sea water
; water
; desalination
; distillation
; flux measurement
; fouling
; in situ measurement
; membrane
; monitoring
; monitoring system
; optical method
; polymer
; porosity
; sampling
; seawater
; tomography
; water vapor
; adsorption
; Article
; cation exchange
; contact angle
; controlled study
; crystal
; distillation
; environmental monitoring
; fouling control
; hydrophobicity
; liquid chromatography
; non invasive procedure
; online monitoring
; optical coherence tomography
; priority journal
; surface property
; water vapor
; artificial membrane
; biofouling
; devices
; porosity
; procedures
; salinity
; water management
; Biofouling
; Biopolymers
; Distillation
; Membranes, Artificial
; Organic Chemicals
; Porosity
; Salinity
; Seawater
; Water Purification
英文摘要: Fouling development in direct contact membrane distillation (DCMD) for seawater desalination was evaluated combining in-situ monitoring performed using optical coherence tomography (OCT) together with destructive techniques. The non-invasive monitoring with OCT provided a better understanding of the fouling mechanism by giving an appropriate sampling timing for the membrane autopsy. The on-line monitoring system allowed linking the flux trend with the structure of fouling deposited on the membrane surface. The water vapor flux trend was divided in three phases based on the deposition and formation of different foulants over time. The initial flux decline was due to the deposition of a 50–70 nm porous fouling layer consisting of a mixture of organic compounds and salts. Liquid chromatography with organic carbon detection (LC-OCD) analysis revealed the abundance of biopolymer in the fouling layer formed at the initial phase. In the second phase, formation of carbonate crystals on the membrane surface was observed but did not affect the flux significantly. In the last phase, the water vapor flux dropped to almost zero due to the deposition of a dense thick layer of sulfate crystals on the membrane surface. © 2017 Elsevier Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112968
Appears in Collections: 气候减缓与适应
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作者单位: King Abdullah University of Science and Technology (KAUST), Water Desalination and Reuse Center (WDRC), Biological and Environmental Science & Engineering Division (BESE), Thuwal, 23955-6900, Saudi Arabia; School of Civil and Environmental Engineering, Kookmin University, Jeongneung-Dong, Seongbuk-Gu, Seoul 136-702, South Korea; Graduate School of Water Resources, Sungkyunkwan University, 2066 Seobu-ro, Jangan-Gu, Suwon, Gyeonggi-Do 16419, South Korea
Recommended Citation:
Fortunato L.,Jang Y.,Lee J.-G.,et al. Fouling development in direct contact membrane distillation: Non-invasive monitoring and destructive analysis[J]. Water Research,2018-01-01,132