DOI: 10.1016/j.watres.2018.10.079
Scopus记录号: 2-s2.0-85056218342
论文题名: Evaluating membrane fouling potentials of dissolved organic matter in brackish water
作者: Park S. ; Nam T. ; You J. ; Kim E.-S. ; Choi I. ; Park J. ; Cho K.H.
刊名: Water Research
ISSN: 431354
出版年: 2019
起始页码: 65
结束页码: 73
语种: 英语
英文关键词: Brackish water fractionation
; Fouling potential
; Organic matter characterization
; Preparative high-performance liquid chromatography
Scopus关键词: Biogeochemistry
; Biological materials
; Gas chromatography
; High performance liquid chromatography
; Lignin
; Lipids
; Liquids
; Mass spectrometry
; Membrane fouling
; Organic carbon
; Proteins
; Brackish water
; Building blockes
; Dissolved organic matters
; Fluorescence excitation emission matrixes (FEEM)
; Fouling potential
; Organic carbon detection
; Physicochemical property
; Pyrolysis-gas chromatography- mass spectrometries
; Size exclusion chromatography
; brackish water
; dissolved organic matter
; organic matter
; polysaccharide
; brackish water
; dissolved organic matter
; experimental study
; fouling
; fractionation
; lignin
; lipid
; liquid chromatography
; mass spectrometry
; membrane
; analysis
; Article
; biofouling
; comparative study
; fluorescence excitation emission matrix
; fractionation
; high performance liquid chromatography
; humic substance
; liquid chromatography organic carbon detection
; membrane
; molecular size
; molecular weight
; physical chemistry
; priority journal
; pyrolysis
; retention time
; size exclusion chromatography
; total organic carbon
; water analysis
; water sampling
; zeta potential
英文摘要: Isolating dissolved organic matter (DOM) is a preliminary step that improves the accuracy of its characterization. In this study, DOM in brackish water was clearly separated and evaluated by multiple characterization analyses. The sample was divided into three fractions by preparative high-performance liquid chromatography (preparative HPLC) according to molecular size. The homogeneity of each fraction was estimated by analytical size exclusion chromatography (SEC) and fluorescence excitation-emission matrix (FEEM). Pyrolysis gas chromatography-mass spectrometry (Py-GC/MS) and liquid chromatography-organic carbon detection (LC-OCD) were used to characterize the physicochemical properties of each fraction. Py-GC/MS revealed that Fraction 1 consisted of evenly distributed organic matter in order polysaccharides, proteins, polyhydroxy aromatics, lignins, and lipids. However, Fraction 2 was primarily composed of dominant lipids and low portion of proteins, and Fraction 3 was composed predominantly of lignins and lipids. The LC-OCD results showed that Fractions 1 and 2 had similar organic carbon (OC) compositions: a humic substance (ca. 37%), building blocks (ca. 10%), and neutrals (ca. 37%), whereas Fraction 3 contained a high proportion of neutrals (62%). In the fouling experiments, the distinct DOM characteristics in each fraction resulted in different declining flux behaviors, ranked as: Fraction 2 > Fraction 1 > Fraction 3. © 2018 Elsevier Ltd
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122175
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: School of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology, UNIST-gil 50, Ulsan, 44919, South Korea; Department of Environmental System Engineering, Chonnam National University, Yeosu, Jeonnam 59626, South Korea; Water Analysis and Research Center, K-water, Sintanjin-ro, Daedeok-gu, Daejeon, 34350, South Korea
Recommended Citation:
Park S.,Nam T.,You J.,et al. Evaluating membrane fouling potentials of dissolved organic matter in brackish water[J]. Water Research,2019-01-01