Methane emissions from a waste treatment site: Numerical analysis of aircraft-based data

Cai, Yujie; Cai, Xuhui; Desjardins, Raymond L.; Worth, Devon E.; Srinivasan, Ramesh

doi:10.1016/j.agrformet.2020.108102

Cited by 6 publications

(3 citation statements)

References 58 publications

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“…Land ll Gases (LFG) are noxious gases like methane, nitrous oxide, carbon dioxide etc., which are produced from the chemical and biological disintegration and degradation of the buried solid wastes. The primary constituents of the LFG are the carbon dioxide (40-50%) and methane (50-60%), which are also considered as Greenhouse Gases (GHG) (Amirmahani et al, 2020;Cai et al, 2020). The land ll gases such as methane are produced due to the anaerobic biodegradation of the organic wastes dumped in the site.…”

Section: Introductionmentioning

confidence: 99%

“…The methane emissions can be estimated by various methods as already been researched by many authors, they have adopted eld experiments, mathematical modeling like LandGEM, IPCC model, rst order model, etc., and site appraisement methods (Ramprasad et al, 2019;Amirmahani et al, 2020;Cai et al, 2020). Fallahizadeh et al (2019) describes the methodology of LandGEM model and its components.…”

Section: Introductionmentioning

confidence: 99%

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Estimating the methane emissions and energy potential from Trichy and Thanjavur dumpsite by LandGEM model

Ramprasad

Balaji

2022

Environ Sci Pollut Res

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One major factor, contributing to the emission of greenhouse gas in the environment is generation of hazardous gases in municipal land lls. Due to these potential negative impacts, it is obligatory to estimate the amount and type of land ll gasses to design and build a gas collecting system. Land ll gas emissions are governed by the type of waste, its biodegradability, its methane emission potential, the degree of separation and other miscellaneous factors. There are various US EPA recommendation model. The Land ll Gas Emissions Model (LandGEM) is one the conventional model and also provides better estimation compared to other method. It is used to the amount of gases produced in the land lls of Trichy (Ariyamangalam) land ll and Thanjavur (Srinivasapuram) land lls have been predicted. According to the results, the largest amount of land ll gas emissions would be in 1993 for Trichy (Ariyamangalam) land ll and in 2027 for Thanjavur (Srinivasapuram) land ll. The total amount of produced gas, methane and carbon dioxide would be 16.2E + 10, 8.2E + 10 and 16.2 + 10 cubic meters per year in 1993 for trichy and 13E

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Estimating the methane emissions and energy potential from Trichy and Thanjavur dumpsite by LandGEM model

Ramprasad

Balaji

2022

Environ Sci Pollut Res

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“…of individual land lls(Cai et al, 2020;Cambaliza et al, 2017;Duren et al, 2019;Lavoie et al, 2015;Maasakkers et al, 2022). Each reported CH 4 ux should cover the entire land ll area to ensure comparability with the IPCC's inventory emission.…”

mentioning

confidence: 99%

Up to 200% underestimation of cumulative methane emission from individual landfills uncovers tens of Tg of overlooked annual emission worldwide

Wang,

Yin,

Fang

et al. 2023

Preprint

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Landfill methane (CH4) emissions account for ~ 10% of all anthropogenic CH4 emissions globally, amounting to ~ 50 Tg/year. Contrasted by “top-down” atmospheric inversion results, the mainstream “bottom-up” emission inventories, which use the Intergovernmental Panel on Climate Change’s (IPCC) model, exhibit significant bias due to inaccurate a priori decay constant (k) estimations. We improved the k estimation method by incorporating composition- and environment-specific corrections, which are readily integrated into the IPCC’s model. We demonstrate that the accuracies of CH4 emission predictions are significantly improved by using the corrected k values, which are benchmarked against the atmospheric inversion results. We extend the emission estimations to landfills worldwide and reveal up to 209% underestimation in individual landfills and several tens of Tg/year of potentially overlooked CH4 emission globally. Our findings highlight the importance of prioritizing landfill CH4 emission monitoring and reduction as one of the most cost-effective mitigation options to achieve current climate goals.

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Quantification and control of gaseous emissions from solid waste landfill surfaces

Huang

et al. 2022

Journal of Environmental Management

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Methane emissions from a waste treatment site: Numerical analysis of aircraft-based data

Cited by 6 publications

References 58 publications

Estimating the methane emissions and energy potential from Trichy and Thanjavur dumpsite by LandGEM model

Estimating the methane emissions and energy potential from Trichy and Thanjavur dumpsite by LandGEM model

Up to 200% underestimation of cumulative methane emission from individual landfills uncovers tens of Tg of overlooked annual emission worldwide

Quantification and control of gaseous emissions from solid waste landfill surfaces

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