Occurrence of odor problems in drinking water of major cities across China

doi:10.1007/s11783-013-0577-1

Front.Environ.Sci.Eng.

2014, Vol. 8

Issue (3) : 411-416 https://doi.org/10.1007/s11783-013-0577-1

RESEARCH ARTICLE

Occurrence of odor problems in drinking water of major cities across China

SUN Daolin,YU Jianwei^1,(

),YANG Min,AN Wei,ZHAO Yunyun,LU Ning²,YUAN Shengguang,ZHANG Dongqing

State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
Shanghai National Engineering Research Center of Urban Water Resources Co., Ltd., Shanghai 200082, China

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Abstract

A comprehensive investigation into the occurrence of odor problem at 111 drinking water treatment plants (DWTPs) in major cities across China was undertaken using both flavor profile analysis (FPA) and gas chromatography–mass spectrometry (GC-MS). Eighty percent of source water samples exhibited odor problems, characterized by earthy/musty (41%) and swampy/septic (36%) odors, while the occurrence rate was lower (45%) in the finished water. Source water from rivers exhibited more pollution-origin odors, such as the swampy/septic odor, while that from lakes and reservoirs exhibited more algae-origin odors, such as earthy/musty odors. The occurrence rate of 2-methylisoborneol (2-MIB) in the surface source water samples was 75%, with 7% of samples containing 2-MIB concentrations of over 10 ng·L^-1. The earthy/musty odor in the lake/reservoir water samples was mainly caused by 2-MIB (linear regression coefficient, R²=0.69), while the correlation between 2-MIB concentration and the earthy/musty odor intensity in the river-source water samples was weak (R²=0.35). These results will be useful for the management of odor-quality problems in drinking water of China.

Keywords flavor profile analysis 2-methylisoborneol swampy/septic odor earthy/musty odor drinking water quality

Corresponding Author(s): YU Jianwei

Issue Date: 19 May 2014

Cite this article:

SUN Daolin,YU Jianwei,YANG Min, et al. Occurrence of odor problems in drinking water of major cities across China[J]. Front.Environ.Sci.Eng., 2014, 8(3): 411-416.

URL:

https://academic.hep.com.cn/fese/EN/10.1007/s11783-013-0577-1
https://academic.hep.com.cn/fese/EN/Y2014/V8/I3/411

Tab.1

Fig.1 Comparison of odor descriptors detected in source and finished waters

Tab.2

Tab.3

Fig.2 Relationship between 2-MIB levels and intensity of earthy/musty odors in the source waters

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