TY - JOUR
T1 - Correlation of musty odor and 2-MIB in two drinking water treatment plants in South Taiwan
AU - Lin, Tsair Fuh
AU - Wong, Jiun Yue
AU - Kao, Hsiao Pin
N1 - Funding Information:
This study was supported in part by the National Science Council of the Republic of China under Grant Number NSC-89-2211-E-006-115, and in part by Taiwan Water Supply Corporation. The authors thank Professor H.H. Yeh in the Department of Environmental Engineering at National Cheng Kung University, and Professor H.D. Lai in the Department of Environmental Engineering and Health at Chia Nan University of Pharmacy and Science for their support and discussions. The authors also thank Professor C.P. Huang in the Department of Civil and Environmental Engineering at University of Delaware for his review. In addition, we appreciate the help of Mr Y.P. Lai at the Seventh District of Taiwan Water Supply Corporation for providing water quality data of the two source waters.
PY - 2002/4/22
Y1 - 2002/4/22
N2 - Possible odor groups and intensity, and seasonal effects were elucidated in two representative water treatment plants (WTPs), Feng-Shen and Gun-Shi, in southern Taiwan. The flavor profile analysis (FPA) was employed to determine the odor groups for the source water, while a chemical analysis, solid-phase microextraction (SPME) coupled with a gas chromatograph and mass spectrometric detector (GC/MSD), was used to concentrate and subsequently analyze the corresponding water samples. FPA results show that fishy and musty odors were the two major odor groups in the source water. Results of chemical analysis showed that 2-methyl-isoborneol (2-MIB) was present in the source water. The correlation between 2-MIB concentration and the FPA intensity of musty odor was compared with the dose-response curve generated in the laboratory by the FPA panelists. The experimental data from the two water treatment plants follow the calibration curve closely, indicating that the musty odor of the two source waters were most likely contributed from 2-MIB. In addition, there is good correlation between logarithmic 2-MIB concentration and water temperature, substantiating the importance of seasonal effect. Although approximately 40-50% of 2-MIB removal was found in the treatment trains for the two WTPs, only an approximately 0.3 FPA intensity scale of reduction was expected.
AB - Possible odor groups and intensity, and seasonal effects were elucidated in two representative water treatment plants (WTPs), Feng-Shen and Gun-Shi, in southern Taiwan. The flavor profile analysis (FPA) was employed to determine the odor groups for the source water, while a chemical analysis, solid-phase microextraction (SPME) coupled with a gas chromatograph and mass spectrometric detector (GC/MSD), was used to concentrate and subsequently analyze the corresponding water samples. FPA results show that fishy and musty odors were the two major odor groups in the source water. Results of chemical analysis showed that 2-methyl-isoborneol (2-MIB) was present in the source water. The correlation between 2-MIB concentration and the FPA intensity of musty odor was compared with the dose-response curve generated in the laboratory by the FPA panelists. The experimental data from the two water treatment plants follow the calibration curve closely, indicating that the musty odor of the two source waters were most likely contributed from 2-MIB. In addition, there is good correlation between logarithmic 2-MIB concentration and water temperature, substantiating the importance of seasonal effect. Although approximately 40-50% of 2-MIB removal was found in the treatment trains for the two WTPs, only an approximately 0.3 FPA intensity scale of reduction was expected.
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U2 - 10.1016/S0048-9697(01)01049-X
DO - 10.1016/S0048-9697(01)01049-X
M3 - Article
C2 - 12049398
AN - SCOPUS:0037156459
SN - 0048-9697
VL - 289
SP - 225
EP - 235
JO - Science of the Total Environment
JF - Science of the Total Environment
IS - 1-3
ER -