title: [Excitation-Emission Matrix Fluorescence Spectra Characteristics of DOM in a Combined Constructed Wetland].
abstract: Using three-dimensional fluorescence technology, we studied fluorescent characteristics of two polluted rivers by a surface flow+vertical flow combined constructed wetlands of dissolving organic matter. The results showed that (1) the main sources of water-soluble humic organic matter in constructed wetland was biological metabolic input instead of terrigenous input; (2) in the later section of the surface flow constructed wetland, part of proteinoid substance changed into fulvic acid-like substance, which showed that the composition of dissolved organic matter and material structure tended to be stable after surface flow combined constructed wetland treatment; (3) it was of great significance that surface flow constructed wetland in structure transformation of water soluble organic matter, which could significantly improve the stability of water soluble organic matter. Surface flow+vertical flow combined constructed wetland process of dissolved organic matter had a good removal effect.
authors.forename: Jing-jing
authors.initials: JJ
authors.lastname: Lü
authors.forename: Lie-yu
authors.initials: LY
authors.lastname: Zhang
authors.forename: Bei-dou
authors.initials: BD
authors.lastname: Xi
authors.forename: Li-an
authors.initials: LA
authors.lastname: Hou
authors.forename: Ming
authors.initials: M
authors.lastname: Li
mesh_terms: D004784:Environmental Monitoring; D009930:Organic Chemicals / Q000032:analysis*; D013050:Spectrometry, Fluorescence; D053833:Wetlands
chemical_list: D009930:Organic Chemicals