Gas Emissions from Municipal Solid Waste Landfills: A Comprehensive Review and Analysis of Global Data

Manheim, Derek C.; Yeşiller, Nazlı; Hanson, James L.

doi:10.1007/s41745-021-00234-4

Cited by 22 publications

(10 citation statements)

References 164 publications

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“…Similarly, Manheim et al [23] showed statistically significant relationships between CH 4 and CO 2 and meteorological parameters prevailing within the landfill site, indicating that meteorological parameters may, to some extent, influence the CH 4 content [87,88]. The highest average methane content, exceeding 50% in the operational phase and 40% in the non-operational phase, occurred in autumn.…”

Section: Discussion Of the Resultsmentioning

confidence: 86%

“…The remaining gas components include oxygen (O 2 ) and, in smaller amounts, acidic gases and pollutants, such as nitrogen (N 2 ), water vapour (H 2 O), and trace amounts of other volatile organic compounds (VOCs) [21,22]. Oxygen affects the biodegradation of waste, which is classified as an aerobic or anaerobic process, depending on its content [23]. In the anaerobic fermentation process, an acidic, methanogenic phase can be separated by regulating the landfill operation parameters [24].…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of the Activity of a Municipal Waste Landfill Site in the Operational and Non-Operational Sectors Based on Landfill Gas Productivity

Przydatek,

Generowicz,

Kanownik

2024

Energies

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This research identifies the productivity of landfill gas actively captured at a municipal waste landfill site with a waste mass exceeding 1 million Mg from sectors in the operational and non-operational phases, considering meteorological conditions. Based on the analysis of landfill gas, including emissions and composition (CH4, CO2, O2, and other gases), the processes occurring demonstrate the impact of the decomposition of deposited waste on the activity of the deposit. With average monthly gas emissions exceeding 960,000 m3, the average content of CH4 (30–63%) and CO2 (18–42%) and the varied content of O2 (0.3–9.8%) in individual sectors of the landfill site were significant. The statistically significant relationship between CH4, CO2, and landfill gas emissions exhibited a noticeable decrease in methane content. Despite the abandonment of waste storage, a high correlation is present between the emission level and methane content (0.59) and carbon dioxide (0.50). In the operational part of the landfill, this relationship is also statistically significant but to a lesser extent; Spearman’s R-value was 0.42 for methane and 0.36 for carbon dioxide. The operational and post-operational phases of the municipal waste landfill demonstrated a noticeable impact from the amount of precipitation, relative humidity, and air temperature, on landfill gas productivity. The generally progressive decline in the activity of the waste deposit, which reflects a decreasing trend in the methane content of approximately 2% annually in the total composition of landfill gas, as well as the share below 50%, indicates the need only to utilise landfill without producing energy.

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Section: Discussion Of the Resultsmentioning

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Evaluation of the Activity of a Municipal Waste Landfill Site in the Operational and Non-Operational Sectors Based on Landfill Gas Productivity

Przydatek,

Generowicz,

Kanownik

2024

Energies

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“…Focusing on the aim of this study, to collect information about the nature of odorous emissions from landfills, a complete literature review was conducted, and two main categories of studies were evaluated. The first category includes articles reporting the chemical analysis of odorous emissions, in particular the identification and quantification of volatile organic compounds (VOCs) from landfills, discussing the different atmospheric emission sources [27,[29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46]. The second category of papers considered includes studies focusing on health risk assessment of odor emissions from landfills [47][48][49].…”

Section: Analyzed Literaturementioning

confidence: 99%

Evaluation of Occupational Exposure Risk for Employees Working in Dynamic Olfactometry: Focus On Non-Carcinogenic Effects Correlated with Exposure to Landfill Emissions

et al. 2021

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This work aims to evaluate the non-carcinogenic health effects related to landfill odor emissions, therefore focusing on workers involved in dynamic olfactometry. Currently, the most common technique to quantify odor emissions is dynamic olfactometry, a sensorial analysis involving human assessors. During the analysis, assessors are directly exposed, at increasing concentrations, to odor samples, and thus to the hazardous pollutants contained therein. This entails the need to estimate the associated exposure risk to guarantee examiners’ safety. Therefore, this paper evaluates the exposure risk for olfactometric examiners to establish the minimum dilution level to be adopted during the analysis of landfills’ odorous samples to guarantee panelists’ safety. For this purpose, an extensive literature review regarding the pollutants emitted by landfill odor sources was conducted, comparing compounds’ chemical concentrations and threshold limit values (TLVs) to calculate the Hazard Index (HI) and thus establish a minimum dilution value. The data collected indicate that a non-negligible non-carcinogenic risk exists for all landfill emissions considered. However, from the data considered, the minimum dilution factor to be adopted is lower than the typical odor concentration observed for these sources. Therefore, the olfactometric analysis of landfill samples can be generally conducted in safe conditions.

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“…Hence, most of the generated LFG of the previous landfill may escape into the atmosphere through the cracks within the waste cells [1]. The LFG production can vary due to several factors, including waste composition, waste age, pH, moisture content, temperature, presence of O2, landfill type and operational practice [26]. Besides, the low participation in source separation and recycling practices causes the MSW to consist of a high amount of undegradable material, leading to a reduction of energy production in terms of economics [28].…”

Section: Landfill Gas Recovery Systemmentioning

confidence: 99%

Malaysia Moving Towards a Sustainability Municipal Waste Management

Tang

Maharjan

et al. 2021

Ind. Domest. Waste Manag.

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The elevation of waste generation subsequent to population growth has become a severe environmental topic in Malaysia. Since most of the waste is being dumped into a landfill, the open dumpsite, or unsanitary landfills which are not constructed with proper engineering plan, severe impacts on the environment result. The energy demand in Malaysia increased with the growing population, but reliance on fossil fuels to generate electricity has created another greenhouse gas contributor. Alternatively, waste-to-energy technology solves the problem of increasing waste by converting the waste to a renewable energy source. Malaysia has moved towards landfill gas recovery system and incineration for waste energy recovery. The recovery system and refuse-derived fuel plant achieved expectation; however, the incineration plants have failed due to the opposition of the public, lack of funding and technician expertise, and other technical issues. The solid waste management practices lacking separation and recycling sources, become an obstacle for development. The government puts effort into solving the current issue by promoting recycling in the public, enforcing the legislation, and approaching new technologies for better solid waste management practice in the future. This paper aims to discuss the application of energy recovery from municipal solid waste in Malaysia.

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Gas Emissions from Municipal Solid Waste Landfills: A Comprehensive Review and Analysis of Global Data

Cited by 22 publications

References 164 publications

Evaluation of the Activity of a Municipal Waste Landfill Site in the Operational and Non-Operational Sectors Based on Landfill Gas Productivity

Evaluation of the Activity of a Municipal Waste Landfill Site in the Operational and Non-Operational Sectors Based on Landfill Gas Productivity

Evaluation of Occupational Exposure Risk for Employees Working in Dynamic Olfactometry: Focus On Non-Carcinogenic Effects Correlated with Exposure to Landfill Emissions

Malaysia Moving Towards a Sustainability Municipal Waste Management

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