Use of log-transformed absorbance spectra for online monitoring of the   reactivity of natural organic matter

doi:10.1016/j.watres.2015.07.029

CORC > 北京大学 > 环境科学与工程学院

	Use of log-transformed absorbance spectra for online monitoring of the reactivity of natural organic matter
	Roccaro, Paolo ; Yan, Mingquan ; Korshin, Gregory V.
刊名	WATER RESEARCH
	2015
关键词	Aromaticity SUVA Spectral slope Disinfection by-products Trihalomethanes Haloacetic acids DISINFECTION BY-PRODUCTS AQUATIC HUMIC SUBSTANCES CHLORINATED DRINKING-WATER SPECTROSCOPIC PROPERTIES DIFFERENTIAL ABSORBENCY ULTRAVIOLET ABSORBENCY MOLECULAR-WEIGHT UV SPECTROSCOPY DBP FORMATION IN-SITU
DOI	10.1016/j.watres.2015.07.029
英文摘要	This study examined the significance of water quality monitoring parameters obtained via logarithmic transformation of the absorbance spectra of raw and treated drinking water. The data were generated using samples of the influent, settled and filtered water acquired weekly over a six months period at two full scale treatment plants. Examination of the weekly plant samples combined with the data of laboratory fractionation and chlorination experiments showed that the slopes of the log-transformed spectra are correlated with typically reported water quality parameters (e.g., its specific absorbance at 254 nm, SUVA(254)); yet the determination of spectral slopes is considerably simpler and potentially information-rich. The spectral slopes determined for the range of wavelength 280-350 nm were shown to be correlated with the yields of trihalomethanes (THMs) and haloacetic acids (HAAs). These results support the notion that multi-wavelength monitoring of the absorbance spectra of drinking water and their interpretation via logarithmic transformation constitutes a promising practically implementable approach for online water quality monitoring. (C) 2015 Elsevier Ltd. All rights reserved.; Cadmus [069-UW-1]; National Natural Science Foundation of China [21277005]; Italian Ministry of Instruction, University, and Research (MIUR), through the Research Projects of National Interest - PRIN [20092MES7A_002]; US-Italy Fulbright Commission; SCI(E); EI; PubMed; ARTICLE; proccaro@dica.unict.it; yanmq@pku.edu.cn; korshin@uw.edu; 136-143; 84
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/415493]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	Roccaro, Paolo,Yan, Mingquan,Korshin, Gregory V.. Use of log-transformed absorbance spectra for online monitoring of the reactivity of natural organic matter[J]. WATER RESEARCH,2015.
APA	Roccaro, Paolo,Yan, Mingquan,&Korshin, Gregory V..(2015).Use of log-transformed absorbance spectra for online monitoring of the reactivity of natural organic matter.WATER RESEARCH.
MLA	Roccaro, Paolo,et al."Use of log-transformed absorbance spectra for online monitoring of the reactivity of natural organic matter".WATER RESEARCH (2015).