Emission of volatile organic sulfur compounds from a heavily polluted river in Guangzhou, South China

Sheng, Yanqing; Chen, Fanzhong; Yu, Ying; Wang, Xinming; Sheng, Guoying; Fu, Jiamo; Zeng, Eddy Y.

doi:10.1007/s10661-007-9962-1

Cited by 21 publications

(16 citation statements)

References 28 publications

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“…However, DMTS was not detected in this study. DMTS has been reported as the major odorant identified from algal cultures or algae-induced black blooms (Watson, 2004), while DEDS and DMDS were more associated with bio-industry (Hwang et al, 1995;Smet and Van Langenhove, 1998), swine operation processes (Schiffman et al, 2001) and polluted rivers (Sheng et al, 2008). The cyanobacterial blooms in Taihu Lake, the major water source of the HP River, have been improved due to extensive water pollution control efforts in the region (Xu et al, 2010), which might be a part of the reason for the disappearance of DMTS.…”

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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“…To ultimately remediate the water environment, the question of how to avoid recontamination should first be addressed. Third, after diverting the polluted headwaters, parts of these rivers run dry, exposing the black and odorous riverbeds on sunny days or in arid seasons, with the diffusion of malodorous volatiles over the surrounding area (Muzeeinoglu, 2003;Sheng et al, 2008). Furthermore, this phenomenon would obviously affect the scenic environment of the Guangzhou urban area.…”

Section: Introductionmentioning

confidence: 99%

Ultrasensitive colorimetric detection of heparin based on self-assembly of gold nanoparticles on graphene oxide

Chen

2012

Analyst

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A novel colorimetric method was developed for ultrasensitive detection of heparin based on selfassembly of gold nanoparticles (AuNPs) onto the surface of graphene oxide (GO). Polycationic protamine was used as a medium for inducing the self-assembly of citrate-capped AuNPs on GO through electrostatic interaction, resulting in a shift in the surface plasmon resonance (SPR) absorption of AuNPs and exhibiting a blue color. Addition of polyanionic heparin disturbed the self-assemble of AuNPs due to its strong affinity to protamine. With the increase of heparin concentration, the amounts of self-assembly AuNPs decreased and the color changed from blue to red in solution. Therefore, a ''blue-to-red'' colorimetric sensing strategy based on self-assembly of AuNPs could be established for heparin detection. Compared with the commonly reported aggregation-based methods (''red-to-blue''), the color change from blue to red was more eye-sensitive, especially in low concentration of target. Moreover, stronger interaction between protamine and heparin led to distinguish heparin from its analogues as well as various potentially coexistent physiological species. The strategy was simply achieved by the self-assembly nature of AuNPs and the application of two types of polyionic media, showing it to be label-free, simple, rapid and visual. This method could selectively detect heparin with a detection limit of 3.0 ng mL À1 in standard aqueous solution and good linearity was obtained over the range 0.06-0.36 mg mL À1 (R ¼ 0.9936). It was successfully applied to determination of heparin in fetal bovine serum samples as low as 1.7 ng mL À1 with a linear range of 0-0.8 mg mL À1 .

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“…Aeration led to oxygenation and oxidation, during which S 2− reached nearly zero. In heavily polluted river, the odorous compounds, especially the odorous volatile sulfur containing compounds will be produced and release from anaerobic water bodies (Sheng et al, 2008(Sheng et al, , 2011. In this work, the average final value of DO was ∼3 mg L −1 , the production of reduced sulfide was restrained, so the odorous pollution was decreased.…”

Section: Remediation Efficiency For Cod Cr Nh 4 + -N and Tss In Dowmentioning

confidence: 80%

A combined application of different engineering and biological techniques to remediate a heavily polluted river

Sheng

Ding

et al. 2013

Ecological Engineering

Self Cite

101

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a b s t r a c tRiver pollution is becoming a serious problem worldwide. A field-scale experiment was undertaken to remediate a heavily polluted river using a combined engineering approach of aeration, microorganisms, biological aerated filtration, artificial biofilms and ecological floating beds. Prior to remediation, the river water was black, anoxic and highly sulfidic. With remediation, the chemical oxygen demand decreased from ∼250 to ∼50 mg L −1 , NH 4 + -N decreased from ∼27 to ∼4 mg L −1 , sulfide decreased from ∼3 to ∼0.3 mg L −1 , and total suspended solids decreased from ∼270 to ∼40 mg L −1 . At the same time, dissolved oxygen increased from ∼0.1 to ∼3.5 mg L −1 , and water clarity increased from ∼6 to ∼40 cm. Furthermore, the unpleasant odor emanating from the polluted river was also stopped, and local farmers have begun using the water for irrigation. This field-scale experiment thus indicates the potential usefulness of this combined engineering approach to remediate heavily polluted rivers.

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Emission of volatile organic sulfur compounds from a heavily polluted river in Guangzhou, South China

Cited by 21 publications

References 28 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

Ultrasensitive colorimetric detection of heparin based on self-assembly of gold nanoparticles on graphene oxide

A combined application of different engineering and biological techniques to remediate a heavily polluted river

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