DOI: 10.1016/j.watres.2018.01.005
Scopus记录号: 2-s2.0-85040235538
论文题名: Applying ultraviolet/persulfate (UV/PS) pre-oxidation for controlling ultrafiltration membrane fouling by natural organic matter (NOM) in surface water
作者: Tian J. ; Wu C. ; Yu H. ; Gao S. ; Li G. ; Cui F. ; Qu F.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 132 起始页码: 190
结束页码: 199
语种: 英语
英文关键词: Membrane fouling
; Natural organic matter
; Ultrafiltration
; Ultraviolet/persulfate
; Water treatment
Scopus关键词: Amino acids
; Biogeochemistry
; Fluorescence
; Fourier transform infrared spectroscopy
; Hydrophobicity
; Irradiation
; Macromolecules
; Membrane fouling
; Membranes
; Microfiltration
; Molecular weight distribution
; Organic carbon
; Oxidation
; Photodegradation
; Potable water
; Scanning electron microscopy
; Sulfur compounds
; Surface waters
; Ultrafiltration
; Water filtration
; Water treatment
; Dissolved organic carbon
; Fluorescent compounds
; Hydrophobic compounds
; Macromolecular compounds
; Natural organic matters
; Transmembrane pressures
; Ultra-filtration membranes
; Ultraviolet/persulfate
; Chemicals removal (water treatment)
; dissolved organic matter
; hydroxyl radical
; natural organic matter
; persulfate
; sulfate
; surface water
; tyrosine
; unclassified drug
; sodium derivative
; sodium persulfate
; sulfate
; adhesion
; fouling
; irradiation
; membrane
; organic matter
; oxidation
; surface water
; ultrafiltration
; ultraviolet radiation
; water treatment
; Article
; biofouling
; degradation
; filtration
; fluorescence spectroscopy
; fouling control
; hydrophilicity
; hydrophobicity
; infrared spectroscopy
; macromolecule
; membrane fouling
; mineralization
; molecular weight
; oxidation
; pressure
; priority journal
; scanning electron microscopy
; transmembrane pressure
; ultraviolet radiation
; waste component removal
; water treatment
; artificial membrane
; chemical phenomena
; chemistry
; devices
; oxidation reduction reaction
; procedures
; radiation response
; ultrafiltration
; water management
; water pollutant
; Hydrophobic and Hydrophilic Interactions
; Membranes, Artificial
; Molecular Weight
; Oxidation-Reduction
; Sodium Compounds
; Sulfates
; Ultrafiltration
; Ultraviolet Rays
; Water Pollutants
; Water Purification
英文摘要: Membrane fouling is a recognized obstacle for the application of ultrafiltration (UF) for drinking water treatment. In this study, ultraviolet/persulfate (UV/PS) oxidation was employed as a pretreatment to control membrane fouling caused by natural organic matter (NOM) in surface water. The effects of UV/PS pretreatment on amounts and characteristics of NOM were investigated in terms of dissolved organic carbon, fluorescent spectrum, molecular weight distribution and hydrophobicity. UF membrane fouling during filtration of raw and pre-oxidized water was compared with transmembrane pressure development, and the fouled membranes were further characterized using scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). The results indicate that NOM was considerably degraded and partially mineralized (∼58%) by UV/PS pretreatment at a PS dose not exceeding 0.6 mM and a UV irradiation time within 120 min, which was attributed to the generation of sulfate and hydroxyl radicals. The fluorescent compounds in NOM were almost completely degraded (>98%) by the UV/PS pretreatment at a PS dose of 0.4 mM, except for tyrosine-like proteins (∼80%). Moreover, UV/PS pretreatment decreased the ratio of macromolecular compounds and increased the hydrophilic fractions, resulting in reduced NOM adhesion to the membrane. Hence, irreversible fouling by NOM was significantly retarded (∼75%) by the UV/PS pretreatment due to reduction in NOM, and more importantly by preferential degradation of fluorescent, macromolecular and hydrophobic compounds. Fouling control performance was considerably improved at increased PS doses and extended UV irradiation time. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112987
Appears in Collections: 气候减缓与适应
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作者单位: School of Civil Engineering and Transportation, Hebei University of Technology, Tianjin, 300401, China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, China
Recommended Citation:
Tian J.,Wu C.,Yu H.,et al. Applying ultraviolet/persulfate (UV/PS) pre-oxidation for controlling ultrafiltration membrane fouling by natural organic matter (NOM) in surface water[J]. Water Research,2018-01-01,132