Fluorescence spectroscopic studies of the effect of granular activated carbon adsorption on structural properties of dissolved organic matter fractions

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	Fluorescence spectroscopic studies of the effect of granular activated carbon adsorption on structural properties of dissolved organic matter fractions
其他题名	Fluorescence spectroscopic studies of the effect of granular activated carbon adsorption on structural properties of dissolved organic matter fractions
	Xue Shuang 1; Zhao Qingliang 3; Wei Liangliang 3; Hui Xiujuan 1; Ma Xiping 1; Lin Yingzi 4
	2012
发表期刊	FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING
ISSN	2095-2201
卷号	6 期号:6 页码:784-796
摘要	This work investigated the effect of granular activated carbon adsorption (GACA) on fluorescence characteristics of dissolved organic matter (DOM) in secondary effluent, by means of excitation-emission matrix (EEM) spectra, the fluorescence regional integration (FRI) method, synchronous spectra, the fluorescence index defined as the ratio of fluorescence emission intensity at wavelength 450 nm to that at 500 nm at excitation (lambda (ex))= 370 nm, and the wavelength that corresponds to the position of the normalized emission band at its half intensity (lambda (0.5)). DOM in the secondary effluent from the North Wastewater Treatment Plant (Shenyang, China) was fractionated using XAD resins into 5 fractions: hydrophobic acid (HPO-A), hydrophobic neutral (HPO-N), transphilic acid (TPI-A), transphilic neutral (TPI-N) and hydrophilic fraction (HPI). Results showed that fluorescent materials in HPO-N and TPI-N were less readily removed than those in the other fractions by GACA. The relative content of fluorescent materials in HPO-A, TPI-A and HPI decreased whereas that in HPO-N and TPI-N increased as a consequence of GACA. Polycyclic aromatics in all DOM fractions were preferentially absorbed by GACA, in comparison with bulk DOM expressed as DOC. On the other hand, the adsorption of aromatic amino acids and humic acid-like fluorophores exhibiting fluorescence peaks in synchronous spectra by GACA seemed to be dependent on the acid/neutral properties of DOM fractions. All five fractions had decreased fluorescence indices as a result of GACA. GACA led to a decreased lambda (0.5) value for HPO-A, increased lambda (0.5) values for HPO-N, TPI-A and HPI, and a consistent lambda (0.5) value for TPI-N.
其他摘要	This work investigated the effect of granular activated carbon adsorption (GACA) on fluorescence characteristics of dissolved organic matter (DOM) in secondary effluent, by means of excitation-emission matrix (EEM) spectra, the fluorescence regional integration (FRI) method, synchronous spectra, the fluorescence index defined as the ratio of fluorescence emission intensity at wavelength 450 nm to that at 500 nm at excitation (λ_(ex))=370nm, and the wavelength that corresponds to the position of the normalized emission band at its half intensity (λ_(0.5)). DOM in the secondary effluent from the North Wastewater Treatment Plant (Shenyang, China) was fractionated using XAD resins into 5 fractions: hydrophobic acid (HPO-A), hydrophobic neutral (HPO-N),transphilic acid (TPI-A), transphilic neutral (TPI-N) and hydrophilic fraction (HPI). Results showed that fluorescent materials in HPO-N and TPI-N were less readily removed than those in the other fractions by GACA. The relative content of fluorescent materials in HPO-A, TPI-A and HPI decreased whereas that in HPO-N and TPI-N increased as a consequence of GACA. Polycyclic aromatics in all DOM fractions were preferentially absorbed by GACA, in comparison with bulk DOM expressed as DOC. On the other hand, the adsorption of aromatic amino acids and humic acid-like fluorophores exhibiting fluorescence peaks in synchronous spectra by GACA seemed to be dependent on the acid/neutral properties of DOM fractions. All five fractions had decreased fluorescence indices as a result of GACA. GACA led to a decreased λ_(0.5) value for HPO-A, increased λ_(0.5) values for HPO-N, TPI-A and HPI, and a consistent λ_(0.5) value for TPI-N.
关键词	DISINFECTION BY-PRODUCTS SECONDARY EFFLUENT TRIHALOMETHANE PRECURSORS RECLAIMED WATER RIVER WATER REMOVAL ACIDS COAGULATION OZONATION SYSTEMS granular activated carbon adsorption dissolved organic matter fractionation fluorescence
收录类别	CSCD
语种	英语
资助项目	[National Natural Science Foundation of China] ; [Science and Technology Research Program of Commission of Education of Liaoning Province] ; [Planned Science and Technology Project of Liaoning Province]
CSCD记录号	CSCD:4694604
引用统计	被引频次：7[CSCD] [CSCD记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/157805
专题	中国科学院金属研究所
作者单位	1.辽宁大学 2.中国科学院金属研究所 3.Harbin Institute Technol, Sch Municipal & Environm Engn, Harbin 150090, Peoples R China 4.上海市地震局
推荐引用方式 GB/T 7714	Xue Shuang,Zhao Qingliang,Wei Liangliang,et al. Fluorescence spectroscopic studies of the effect of granular activated carbon adsorption on structural properties of dissolved organic matter fractions[J]. FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING,2012,6(6):784-796.
APA	Xue Shuang,Zhao Qingliang,Wei Liangliang,Hui Xiujuan,Ma Xiping,&Lin Yingzi.(2012).Fluorescence spectroscopic studies of the effect of granular activated carbon adsorption on structural properties of dissolved organic matter fractions.FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING,6(6),784-796.
MLA	Xue Shuang,et al."Fluorescence spectroscopic studies of the effect of granular activated carbon adsorption on structural properties of dissolved organic matter fractions".FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING 6.6(2012):784-796.