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	Three-Dimensional Excitation Emission Matrix Fluorescence Spectroscopic Characterization of Loosely Bound and Tightly Bound Extracellular Polymeric Substances of Sludge
	Ouyang Er-ming ; Wang Wei ; Long Neng ; Li Huai
	2010-10-12 ; 2010-10-12
关键词	Loosely bound extracellular polymeric substances (LB-EPS) Tightly bound extracellular polymeric substances (TB-EPS) Sludge Three-dimensional excitation emission matrix fluorescence spectroscopy ACTIVATED-SLUDGE ORGANIC-MATTER HUMIC SUBSTANCES SPECTRA DEWATERABILITY EXTRACTION RIVERS EPS Spectroscopy
中文摘要	Three-dimensional excitation emission matrix fluorescence spectroscopy (3DEEM) was applied to characterize the loosely bound extracellular polymeric substances (LB-EPS) and tightly bound extracellular polymeric substances (TB-EPS) extracted from aerobic sludge in wastewater treatment. The results showed that three fluorescence peaks were identified in three-dimensional excitation emission matrix fluorescence spectra of the LB-EPS and TB-EPS: peak B (lambda(ex)/lambda(em) = 270-280 nm/345-360 nm), peak C (lambda(ex)/lambda(em) = 330-340 nm/410-430 nm)and peak D (lambda(ex)/lambda(em) = 390 nm/450-470 nm). The peak B was attributed to the protein-like fluorophores, peak C to the visible fulvic-like fluorophore and peak D to the humic-like fluorophore. Results of the peak intensity showed that the major component of the LB-EPS and TB-EPS is protein-like organic matter, then followed by (from high to low): fulvic-like organic matter and humic-like organic matter. The effects of both pH and concentration were significant to the 3DEEMs of LB-EPS and TB-EPS, but the degree is not the same. LB-EPS has the particular chemical structures which are different from the TB-EPS.
语种	中文 ; 中文
出版者	BEIJING UNIV PRESS ; BEIJING ; HAIDIAN-QU, BEIJING 100871, PEOPLES R CHINA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/79630]
专题	清华大学
推荐引用方式 GB/T 7714	Ouyang Er-ming,Wang Wei,Long Neng,et al. Three-Dimensional Excitation Emission Matrix Fluorescence Spectroscopic Characterization of Loosely Bound and Tightly Bound Extracellular Polymeric Substances of Sludge[J],2010, 2010.
APA	Ouyang Er-ming,Wang Wei,Long Neng,&Li Huai.(2010).Three-Dimensional Excitation Emission Matrix Fluorescence Spectroscopic Characterization of Loosely Bound and Tightly Bound Extracellular Polymeric Substances of Sludge..
MLA	Ouyang Er-ming,et al."Three-Dimensional Excitation Emission Matrix Fluorescence Spectroscopic Characterization of Loosely Bound and Tightly Bound Extracellular Polymeric Substances of Sludge".(2010).

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