Occurrence of odour-causing compounds in different source waters of China

Yu, Jianwei; Zhao, Yongcun; Yang, Mingxing; Lin, Tsair Fuh; Guo, Zhifang; Gu, Junnong; Li, S.; Han, Won Young

doi:10.2166/aqua.2009.023

Cited by 51 publications

(44 citation statements)

References 17 publications

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“…Bis(2-chloroisopropyl) ether, as a septic odorant, has been discovered in drinking water contaminated by industrial outfall (Kleopfer and Fairless, 1972;Steltenpohl and Graczova, 2008). This odorant was also detected in Huangpu River source water in our previous investigation (Yu et al, 2009).…”

Section: Odorant Removal In Wtpsupporting

confidence: 53%

“…Occurrences of seasonal musty/earthy odors caused by some typical algal metabolites, including 2-methylisoborneol (2-MIB) and geosmin, have often been reported worldwide (Lin et al, 2002;Sun et al, 2013). Though reported less frequently, the septic odor caused by compounds such as thioethers and thiols is another important odor type because of its strong impact on human perception (Schiffman et al, 2001;Yang et al, 2008;Yu et al, 2009). These two types of odors have been those most frequently encountered in the source waters of China, according to a nationwide survey (Sun et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

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Simultaneous removal of multiple odorants from source water suffering from septic and musty odors: Verification in a full-scale water treatment plant with ozonation

Guo

Yang

et al. 2016

Water Research

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a b s t r a c tOzonation is known to be very effective in the removal of odorants from source water. However, it is not known if ozonation is effective in the removal of multiple odorants causing different types of odors. In this study, the removal performance for odors and odorants were evaluated in a Water Treatment Plant (WTP), which was equipped with coagulation, sedimentation, ozonation, biological activated carbon (BAC) filtration, sand filtration, and chlorination in succession and located in the downstream of the Huangpu (HP) River, over the period from April, 2014 to April, 2015. Flavor profile analysis (FPA) results showed that the source water was constantly associated with septic and musty odors. Geosmin and 2-MIB, with an average OAV of 4.54 and 1.38, respectively, were the major odorants for musty odor, while bis(2-chloroisopropyl) ether, DEDS and DMDS with an average OAV of 2.35, 1.65 and 0.78, respectively, might be responsible for the septic odor. While the musty odor could be removed effectively through the combination of ozonation and BAC, the septic odor and associated odorants required further treatment with sand filtration and chlorination for complete removal. It is clear that the advanced treatment process was effective for the treatment of source water containing complicated odorants. It should be noted that the sedimentation process needs careful management because release of odorants may occur during the treatment. The result of this study will be helpful for the mitigation of odors in WTP using source waters suffering from complicated odor problems.

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Section: Odorant Removal In Wtpsupporting

confidence: 53%

Section: Introductionmentioning

confidence: 99%

Simultaneous removal of multiple odorants from source water suffering from septic and musty odors: Verification in a full-scale water treatment plant with ozonation

Guo

Yang

et al. 2016

Water Research

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“…Among the four sulfides analyzed, dimethyl disulfide, which can cause swampy/septic/sulfurous odors (Yang et al, 2008;Yu et al, 2009), was the only one detected in the source water samples. As shown in Fig.…”

Section: Evaluation Of Typical Odorous Compoundsmentioning

confidence: 99%

“…The highest value was detected in the source water of Yinchuan (648.2 ng/L, OAV 21.6), which agreed with the strong rancid/swampy odor perceived by FPA. Dimethyl disulfide is reportedly associated with the anoxic or anaerobic decomposition of some proteins or amino acids from algae (Ma et al, 2013;Zhang et al, 2013) or other organisms (Franzmann et al, 2001;Yang et al, 2008;Yu et al, 2009).…”

Section: Evaluation Of Typical Odorous Compoundsmentioning

confidence: 99%

Source-water odor during winter in the Yellow River area of China: Occurrence and diagnosis

Guo

et al. 2016

Environmental Pollution

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a b s t r a c tYellow River source water has long suffered from odor problems in winter. In this study, odor characteristics, potential odorants, and algae in the source water of six cities (Lanzhou, Yinchuan, Hohhot, Zhengzhou, Jinan and Dongying) along the Yellow River were determined in winter (February to March 2014). According to flavor profile analysis (FPA), moderate to strong fishy odors occurred in all cities, except for Lanzhou. At the same time, mild earthy/musty odors and septic/swampy odors were also detected. The strong fishy odor (FPA intensity, 8.5) in Yinchuan was attributed to the abnormal growth of Dinobryon (cell density, 5.7 Â 10 4 cells/mL), while the fishy odors in Hohhot, Zhengzhou, Jinan, and Dongying might be caused by Melosira and Cyclotella, Cryptomonas, Dinobryon, and Synedra, respectively. Unsaturated aldehydes, which have been reported to cause fishy odors, were not detected in all samples. However, some saturated aldehydes, including hexanal, heptanal, nonanal, decanal, and benzaldehyde, were detected with a total concentration range of 690 ng/L to 2166 ng/L, and might have partly contributed to the fishy odors. In addition, 2-MIB (5.77e21.12 ng/L) and geosmin (2.26e9.73 ng/L) were responsible for the earthy/musty odors in the Yellow River source waters, and dimethyl disulfide (648.2 ng/L) was responsible for the rancid/swampy odor (FPA intensity, 8.0) episode in Yinchuan. This is a comprehensive study reporting on the occurrence and possible reasons for the odor issues in the Yellow River source water during winter.

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“…Growth and decay of these blooms caused off-flavor episode, and off-flavor episodes are becoming a worldwide problem in aquatic environments, especially in eutrophic lakes and reservoirs in China (Yu et al, 2009). Since 2005, episodes of strong earthy-musty off-flavors have occurred every year, which lead to off-flavor contamination of drinking water and aquaculture systems in the Xionghe Reservoir (Hubei, China) (Zhang et al, 2010a).…”

Section: Introductionmentioning

confidence: 99%

Microcystis aeruginosa/Pseudomonas pseudoalcaligenes interaction effects on off-flavors in algae/bacteria co-culture system under different temperatures

Yang

Xie

et al. 2015

Journal of Environmental Sciences

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Occurrence of odour-causing compounds in different source waters of China

Cited by 51 publications

References 17 publications

Simultaneous removal of multiple odorants from source water suffering from septic and musty odors: Verification in a full-scale water treatment plant with ozonation

Simultaneous removal of multiple odorants from source water suffering from septic and musty odors: Verification in a full-scale water treatment plant with ozonation

Source-water odor during winter in the Yellow River area of China: Occurrence and diagnosis

Microcystis aeruginosa/Pseudomonas pseudoalcaligenes interaction effects on off-flavors in algae/bacteria co-culture system under different temperatures

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