Measuring volatile emissions from biosolids: A critical review on sampling methods

Liu, Lisha; Prata, Ademir A.; Fisher, Ruth M.; Stuetz, Richard M.

doi:10.1016/j.jenvman.2022.115290

Cited by 4 publications

(4 citation statements)

References 127 publications

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“…As highlighted by other authors, the different approaches do not give comparable ER, and the discrepancies between methods can be greater than one order of magnitude [13,14].…”

mentioning

confidence: 86%

“…Usually, in order to select the appropriate method to measure emissions, it is necessary to evaluate different factors, such as the typology of the emitting source, the type of gas compounds, the range of measurements, and the homogeneity of the source [13]. The direct methods are commonly applied for earth-atmosphere and water-atmosphere fluxes of various compounds, including ammonia, biogenic sulphur, nitrogen oxides, methane, and general GHG [14].…”

mentioning

confidence: 99%

“…This can alter the natural gradient between the emission source and the atmosphere [21,24]. Nevertheless, the errors presented by the use of chambers can be reduced with correct chamber designs, proper data analyses, and spatial and temporal sampling regimes [13]. In addition, the advantage of using chambers is to connect a particular emission site to its measurable array of physical, chemical, and microbiological properties using the emissions of particular compounds or their reaction products [10].…”

mentioning

confidence: 99%

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Assessing Ammonia and Greenhouse Gas Emissions from Livestock Manure Storage: Comparison of Measurements with Dynamic and Static Chambers

Cattaneo,

Tayà,

Burgos

et al. 2023

Sustainability

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Emission quantification from the agricultural sector, and especially from livestock manure management, is relevant for assessing mitigation strategies and for inventory purposes. There are different direct techniques used to monitor emissions from quiescent surfaces. Common techniques include the closed static chamber and the open dynamic chamber. The aim of this study was to evaluate and compare different direct methods, two dynamic hoods and one static hood, for monitoring NH3 and greenhouse gas (GHG) emissions (N2O, CO2, and CH4) from different emission sources. These sources are ammonia solutions and different by-products of manure (compost, liquid fraction of digestate, and solid fraction of pig slurry). The use of dynamic hoods, despite their differences in size, operation, and applied air flux, presents comparable emission rates for all emissions and compounds assayed. These rates are always higher than those obtained using static hoods. Therefore, it can be concluded that the use of dynamic hoods is a valuable technique for refining the indirect estimation of emissions.

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“…As highlighted by other authors, the different approaches do not give comparable ER, and the discrepancies between methods can be greater than one order of magnitude [13,14].…”

mentioning

confidence: 86%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Assessing Ammonia and Greenhouse Gas Emissions from Livestock Manure Storage: Comparison of Measurements with Dynamic and Static Chambers

Cattaneo,

Tayà,

Burgos

et al. 2023

Sustainability

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show abstract

“…The portable wind tunnel (PWT) is one of the enclosing devices used in the direct method and, according to Hudson et al (2008a), due to the relationship between wind speed and emission rates presented in the study, the wind tunnel has the potential to better simulate natural emission processes compared to other direct methods. However, research conducted using the PWT indicates that this device cannot represent all the factors relevant to the emission process (Liu et al, 2022). Therefore, studies are needed to understand the flow and mass transfer inside these devices, and one way to understand the behavior of enclosing devices is by quantifying mass transfer under controlled conditions.…”

Section: Introductionmentioning

confidence: 99%

Experimental study of mass transfer by volatilization inside a portable wind tunnel used to estimate emission rates for odorous compounds

Siqueira,

Freitas,

Siqueira

et al. 2023

Rev. Bras. Ciênc. Ambient.

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Wastewater treatment plants are sources of hydrogen sulfide in urban environments. This compound, at certain concentrations, may be associated with compromising the health and well-being of populations living near such sources, characterized by diffuse emission, which makes it difficult to quantify. The portable wind tunnel is one of the devices used to measure this type of emission; however, this equipment is not capable of simulating all significant mass transport phenomena. Thus, this study investigated mass transfer at the liquid-gas interface of hydrogen sulfide by estimating the global mass transfer coefficient within the portable wind tunnel. The inlet flow rate into the system ranged from 600 to 1,800 , and the analysis of concentration decay in the liquid phase was performed using spectrophotometry. The observed exponential decay is consistent with the adopted hypotheses; however, no significant variation in the mass transfer coefficient was observed for different system operation flow rates. The average value found was 2.70×10 -5 ±2.99×10 -6 . In summary, this study contributed to understanding the mass transfer of hydrogen sulfide in wastewater treatment environments using a portable wind tunnel as an experimental tool.

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Effect of incubation temperature on identification of key odorants of sewage sludge using headspace GC analysis

Dai,

Yang,

Gao

et al. 2024

Environmental Pollution

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Measuring volatile emissions from biosolids: A critical review on sampling methods

Cited by 4 publications

References 127 publications

Assessing Ammonia and Greenhouse Gas Emissions from Livestock Manure Storage: Comparison of Measurements with Dynamic and Static Chambers

Assessing Ammonia and Greenhouse Gas Emissions from Livestock Manure Storage: Comparison of Measurements with Dynamic and Static Chambers

Experimental study of mass transfer by volatilization inside a portable wind tunnel used to estimate emission rates for odorous compounds

Effect of incubation temperature on identification of key odorants of sewage sludge using headspace GC analysis

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