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Unravelling Relationships Between Fluorescence Spectra, Molecular Weight Distribution and Hydrophobicity Fraction of Dissolved Organic Matter in Municipal Wastewater by Wen-Xiang Ji; Ye-Chao Tian; Ai-min Li; Xiao-Ming Gu; Hong-Fang Sun; Min-Hui Cai; Shan-Qi Shen; Yan-Ting Zuo; Wen-Tao Li is a Environmental Science article available to read on EtoBox.
What is Unravelling Relationships Between Fluorescence Spectra, Molecular Weight Distribution and Hydrophobicity Fraction of Dissolved Organic Matter in Municipal Wastewater about?
The characteristics of dissolved organic matter (DOM) in the influent and secondary effluent from 6 municipal wastewater treatment plants (WWTPs) were investigated with a size exclusion chromatogram (SEC) coupled with multiple detectors to simultaneously detect ultraviolet absorbance, fluorescence, dissolved organic carbon (DOC) and dissolved organic nitrogen (DON) as a function of molecular weight (MW). The SEC chromatograms showed that biopolymers (>6 kDa) and humic substances (0.5–6 kDa) comprised the significant fraction in the influent, while humic substances became the abundant proportion in the secondary effluent. Direct linkages between MW distribution and hydrophobicity of DOM in the secondary effluent were further explored via SEC analysis of XAD resin fractions. DON and DOC with different hydrophobicity exhibited significantly distinct MW distribution, indicating that it was improper to consider DOC as a surrogate for DON. Different from DOC, the order of averaged MW in terms of DON was hydrophobic neutral ≈ transphilic neutral > hydrophobic acid > transphilic acid > hydrophilic fraction. Fluorescence spectral properties exhibited a significant semi-quantitative correlat
Who reads Unravelling Relationships Between Fluorescence Spectra, Molecular Weight Distribution and Hydrophobicity Fraction of Dissolved Organic Matter in Municipal Wastewater?
It is typically read by researchers, students, and practitioners in Environmental Science.
- Author
- Wen-Xiang Ji; Ye-Chao Tian; Ai-min Li; Xiao-Ming Gu; Hong-Fang Sun; Min-Hui Cai; Shan-Qi Shen; Yan-Ting Zuo; Wen-Tao Li
- Publisher
- Elsevier BV
- Published
- 2022
- Language
- EN
- Field
- Environmental Science (Physical Sciences)