A framework for identifying characteristic odor compounds in municipal wastewater effluent

Agus, Eva; Zhang, Lifeng; Sedlak, David L.

doi:10.1016/j.watres.2012.08.018

Cited by 66 publications

(27 citation statements)

References 36 publications

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“…The former was reported to have an irritant odor (Schiffman et al, 2001) but was rarely reported in drinking water, while the latter was reported to have a medicinal odor with an OTC as low as 20 ng/L. 2,6-dichloro-phenol and some other halophenols are often implicated in medicinal odors in drinking water (Young et al, 1996;Agus et al, 2012). The presence of diverse chemicals, including bis(2-chloroisopropyl) ether, α-methyl-styrene, 2,6-dichloro-phenol, DEDS and DMDS, suggested that the river source water is suffering from different types of domestic and industrial pollution.…”

Section: Odorant Identification By Combining the Data From Gc-o/ms Anmentioning

confidence: 99%

Identification of complex septic odorants in Huangpu River source water by combining the data from gas chromatography-olfactometry and comprehensive two-dimensional gas chromatography using retention indices

Guo

Yang

Wen

et al. 2016

Science of The Total Environment

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Identification of the trace odorants causing the septic odors in source waters with complex matrixes has long been a big challenge. The Huangpu (HP) River, an important source water for Shanghai, has long been suffering from septic and musty odors, although major odorants have not been identified. In this study, combining the data from gas chromatography-olfactometry with mass spectrometry (GC-O/MS) and comprehensive twodimensional gas chromatography with time-of-flight mass spectrometry (GC × GC-TOFMS) using retention indices (RIs) was used for the identification of odorants in HP source water. Olfactometry peaks detected in water extracts by GC-O/MS were combined with the chromatography peaks detected by GC × GC-TOFMS based on the RIs determined using the retention times (RTs) of alkanes C7-C30. A total of thirteen olfactometry peaks were obtained though GC-O/MS analysis, and potential odorants corresponding to each of the olfactometry peaks were screened based on the odor characteristics and match similarity using GC × GC-TOFMS. Finally, fourteen odorants (one odorant was detected in GC × GC-TOFMS without an olfactometry peak), including three septic odorants (bis(2-chloroisopropyl) ether, diethyl disulfide and dimethyl disulfide) and two musty ones (geosmin and 2-MIB), were confirmed by using authentic standards. The septic and musty odorants in six Contents lists available at ScienceDirectScience of the Total Environment j o u r n a l h o m e p a g e : w w w . e l s e v i e r . c o m / l o c a t e / s c i t o t e n v source water samples taken over a period of six months were quantified. Bis(2-chloroisopropyl) ether, with an odor activity value (OAV) of 1.84-3.2, was found to be a major septic odorant in HP source water, followed by diethyl disulfide (OAV 1.56-1.96) and dimethyl disulfide (OAV 0.37-2.42), while geosmin (OAV 4.37-11.44) was the major musty odorant, followed by 2-MIB (OAV 1.13-1.89). This is the first comprehensive study focusing on the identification of odorants in a complex source water. The integrated approach used in this study could be applied for the identification of odorants in other complex source waters suffering similar odor problems.

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Section: Odorant Identification By Combining the Data From Gc-o/ms Anmentioning

confidence: 99%

Identification of complex septic odorants in Huangpu River source water by combining the data from gas chromatography-olfactometry and comprehensive two-dimensional gas chromatography using retention indices

Guo

Yang

Wen

et al. 2016

Science of The Total Environment

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“…There are purely objective methods to identify and/or quantify tastes and odors in water; chemical measurements can be made (link ቢ in Figure 1) directly on the stimulus, such as spectroscopy (Gowen et al, 2012), solid-phase extraction (SPE), solid-phase microextraction with headspace (SPME-HS), or stir bar sorptive extraction (SBSE) coupled with liquid or gas chromatography mass spectrometry (LC/MS or GC/MS) analyses (Maillet et al, 2009;Agus et al, 2012;Sun et al, 2012;Wu and Duirk, 2013). However, chemical measurements are not easy to correlate with human perceptions because the latter are the result of complex sensory and interpretation processes (Sáenz-Navajas et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Tastes and Odors of Water—Quantifying Objective Analyses: A Review

Haese

Humeau²,

Oliveira³

et al. 2014

Critical Reviews in Environmental Science and Technology

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Usually, organoleptic criteria have to be fulfilled for tap water in order for it to be considered safe to drink. This can be achieved at three levels: chemical analysis, sensory analysis, or through electrophysiology. While chemical analysis has been quite extensively discussed in the literature and as consumer perception is of vital importance, we propose a review of the latter two levels, namely sensory analysis and electrophysiology. We first recall some basics of perception and how it can be influenced by stimuli properties, human intrinsic factors and contextual factors, which are critical for an efficient measurement. Next, we present sensory analysis methods, as these are usually carried out in order to measure consumer appreciation of water. The drawbacks of such methods are then discussed before introducing the alternative of electrophysiological measurements. Some evidence that activity from the central and autonomic nervous systems can be measured in response to gustatory and olfactory stimuli in water is first described. Then, a review of objective physiological methods in the literature, developed to assess the emotional aspect of these reactions, is detailed. Finally, the possibility of correlating and predicting the quality, intensity, and hedonic dimension of a stimulus in water with sensory self-report and nervous system responses is discussed.

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“…(2). These characteristics of odour pollution differed from those reported in research on wastewater treatment plants, landfills, and other facilities, although some similar compounds were detected [33,1]. For example, hydrogen sulphide was found to be the main contributor to odour pollution in a food waste treatment plant with anaerobic fermentation technology [41], whereas dimethyl sulphide was reported as a critical odourant in food waste composting plants and landfills [37,14].…”

Section: Dilution Multiples Of the Odourant Compounds Released From Tmentioning

confidence: 55%

Volatile trace compounds released from municipal solid waste at the transfer stage: Evaluation of environmental impacts and odour pollution

Zhao

Wang

2015

Journal of Hazardous Materials

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A framework for identifying characteristic odor compounds in municipal wastewater effluent

Cited by 66 publications

References 36 publications

Identification of complex septic odorants in Huangpu River source water by combining the data from gas chromatography-olfactometry and comprehensive two-dimensional gas chromatography using retention indices

Identification of complex septic odorants in Huangpu River source water by combining the data from gas chromatography-olfactometry and comprehensive two-dimensional gas chromatography using retention indices

Tastes and Odors of Water—Quantifying Objective Analyses: A Review

Volatile trace compounds released from municipal solid waste at the transfer stage: Evaluation of environmental impacts and odour pollution

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