Characterization of wastewater and solids odors using solid phase microextraction at a large wastewater treatment plant

Kim, H.; Murthy, Sudhir; McConnell, Laura L.; Peot, Chris; Ramirez, Mark; Strawn, Mary

doi:10.2166/wst.2002.0277

Cited by 32 publications

(33 citation statements)

References 12 publications

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“…Solid phase microextraction (SPME) is another method that has been used for TMA detection in wastewater, thickened sludge, and dewatered sludge (Kim et al 2002). A small, coated fiber that absorbs volatile organic compounds is used for sampling the gas.…”

Section: Odor Detection Methodsmentioning

confidence: 99%

Factors Contributing to Trimethylamine Generation from Limed and Polymer Conditioned Sludges

Schneekloth¹,

Tech²,

Murthy³

et al. 2006

proc water environ fed

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Trimethylamine, (CH 3 ) 3 N, (TMA), odors are often associated with limed and polymer conditioned sludges. This odor has a fishy smell and can be a nuisance to the community surrounding a wastewater treatment plant or land application site. Several factors are thought to determine the amount of TMA generated from limed biosolids. These are, the presence of cationic polymer, the polymer dose, the time between addition of polymer and lime stabilization, shear imparted on the sludge in the dewatering process and dewatered cake solids concentration. All of these were investigated in this study. The results showed that TMA could be generated from sludge that did not contain polymer but the concentrations were low compared to sludge conditioned with cationic polymer.As the polymer dose increased, the TMA increased. Shear also showed to play an important role for TMA production. In addition to higher shear increasing the polymer demand, shear in itself can increase TMA generation. However, the most important factor in generating TMA was the time between conditioning and liming. If this time was minimized, little TMA was produced, even at high polymer doses. Data also suggests that methanogens play an important role in the breakdown of TMA.iii Acknowledgements

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Section: Odor Detection Methodsmentioning

confidence: 99%

Factors Contributing to Trimethylamine Generation from Limed and Polymer Conditioned Sludges

Schneekloth¹,

Tech²,

Murthy³

et al. 2006

proc water environ fed

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“…Without buffer, the pH of the reaction solution increased from pH 7.7 to pH 8.9, however, changed in pH in buffer solution was only from 8.85 to 8.95 (Figure 4b). Based on the results of Figure 4, the stoichiometric equation can be written as reaction (8).…”

Section: Denitrification and Desulfurizationmentioning

confidence: 99%

“…Odorants are complex mixture of chemical compounds at ppb and ppt concentrations, which have been characterized by the gas chromatography technique (7,8). Most of the emitted gases are reduced sulfur, nitrogen compounds, aldehydes, ketones, and organic acids.…”

Section: Introductionmentioning

confidence: 99%

Ferrate(VI): A Green Molecule in Odorous Gas Treatment

Sharma

et al. 2014

ACS Symposium Series

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The odorous gaseous emissions from industrial and wastewater treatment plant processes pose risk for natural ecosystem and human health. This chapter presents an assessment of the potential of ferrate(VI) (Fe VI O 4 2-, Fe(VI)) to remove gaseous odor.Organosulfur compounds are usually predominate constituents of the odor and the kinetics, stoichiometry, and products of their oxidation by Fe(VI) is summarized. The second-order rate constants, k, of the oxidation reactions under alkaline conditions were in the range of~10 1 -10 5 M -1 s -1 . At a 10 mg L -1 K 2 FeO 4 dose, half-lives of the oxidation reaction would be in seconds or less at pH 9.0. The stoichiometry of the reactions of Fe(VI) with sulfur compounds generally varied from 1:2 to 2:3 and Fe(II) and Fe(III) were the reduced products of Fe(VI). Oxygen-containing products of the sulfur compounds were formed. Examples of case studies showed the efficient removal of odorous gases by Fe(VI).

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“…Separation techniques followed by different identification methods are used. Purge and trap (P&T), solid phase micro extraction (SPME) and solvent extraction were used as a separation techniques for GC, multidimensional GC, or GC-MS analysis [17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Characterization of Odorants in an Air Wet Scrubber Using Direct Aqueous Injection-Gas Chromatography-Mass Spectrometry (DAI-GC-MS) and Solid Phase Extraction (SPE-GC)

Abu-Khalaf¹,

Haselmann²

2012

AJEE

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One of the biological methods to reduce odours emission from livestock buildings is bioscrubber. Characterization (identification and quantification) of key odorants from an air wet scrubber in livestock buildings is presented. The key odorants represent five chemical groups, i.e. sulphides, alcohols, volatile fatty acids (VFAs), phenols and indoles. Direct aqueous injection (DAI) and solid phase extraction (SPE) methods were used for sample preparation before injecting the samples into the gas chromatography. Gas chromatography-flame ionization detection (GC-FID) was used for identification and quantification of samples prepared by DAI and SPE. The SPE method had a high recovery (i.e. 89-100%). However, DAI showed a better linearity, a lower limit of detection (LOD) and a lower limit of quantification (LOQ) than the SPE method. The DAI method was preferred for identification and quantification as it is cheaper, easier to handle, without sample preparation and highly applicable. For at least two odorants, i.e. phenol and 1-butanol, LOD and LOQ were below literature values for odorants detection limits in livestock buildings. Gas chromatography-mass spectrometry (GC-MS) was used to verify the identification of odorants, prepared by DAI, according to their m/z values.

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Characterization of wastewater and solids odors using solid phase microextraction at a large wastewater treatment plant

Cited by 32 publications

References 12 publications

Factors Contributing to Trimethylamine Generation from Limed and Polymer Conditioned Sludges

Factors Contributing to Trimethylamine Generation from Limed and Polymer Conditioned Sludges

Ferrate(VI): A Green Molecule in Odorous Gas Treatment

Characterization of Odorants in an Air Wet Scrubber Using Direct Aqueous Injection-Gas Chromatography-Mass Spectrometry (DAI-GC-MS) and Solid Phase Extraction (SPE-GC)

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