Estimation of Land-fill Gas Generation from Municipal Solid Waste in Indian Cities

Das, Debabrata; Majhi, Bijoy Kumar; Pal, Subham; Jash, Tushar

doi:10.1016/j.egypro.2016.11.169

Cited by 28 publications

(10 citation statements)

References 4 publications

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“…The results show that CH 4 generation is directly proportional to amount of waste disposed at site assuming that the CH 4 production from a certain amount of waste disposed at dumpsite is released in that same year (Kaushal and Sharma, 2016). IPCC and EPER Germany method gives over estimated GHG in line with gas generation for landfills of India (Das et al, 2016). Figure 3b shows results of FOD method, GHG emission values are observed with average emission of 0.69 Gg/yr.…”

Section: Resultsmentioning

confidence: 91%

Untitled

2019

Int. J. Res. Environ. Stud.

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In recent times, India is facing problem of poor disposal of municipal solid waste (MSW) at dumpsites and landfills. Inappropriate disposal and unmanaged landfills or open dumping of waste leads to the release of toxic gases like methane (CH 4 ) in atmosphere which causes air pollution and also pollutes ground water through leachate. In view of the poor management of MSW in open dump coupled with associated climate change issues, it has become inevitably important to measure the potential of greenhouse gas (GHG) emission from dump sites. The paper reports the results of GHG emission potential of Saliyar open dump site in Roorkee (Uttrakhand) using four methods, viz: IPCC default method (DM), first order decay method (FOD), EPER Germany model and modified triangular method (MTM). The average GHG emissions from these four methods for 29 years in Roorkee were estimated as 2.0, 0.69, 1.9 and 0.19 Gg/yr, respectively. Summarized literature on GHG estimation methods is also provided with their results and significance. Details of physical analysis of MSW are provided where the analysis results are used as parameters for estimation of GHG. The results of the study suggests that out of four methods, FOD is more site specific and was found to give the most reliable emission results from MSW open dumpsite provided basic parameters of the model are determined precisely.

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Section: Resultsmentioning

confidence: 91%

Untitled

2019

Int. J. Res. Environ. Stud.

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“…The potential table can be further used to design a sanitary landfill and to get the energy outcome from it as a quantity. The LFG collected is considered as an energy source and can be used to minimize the use of the common energy sources [6]. The parameters used to calculate methane emission and their outcome each test day/two weeks are clarified in table 3.…”

Section: Methane Emission Potential Tablementioning

confidence: 99%

“…The potential table designed based on the pilot-scale landfill can be further used to design a sanitary landfill and to get the energy outcome from it as a quantity. The LFG collected is considered as an energy source and can be used to minimize the use of other common energy sources [6]; the extracted LFG can then be used to generate electricity [12].…”

Section: Introductionmentioning

confidence: 99%

Biogas Production From Waste in a Sanitary Landfill Reactor

Aldrawsha

Ismail

Rajamohan

et al. 2020

Journal of Thermal Engineering

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In this research study, the feasibility of waste to biogas conversion in a sanitary landfill unit was investigated. The academic work was about quantifying the methane emission values during the wet season, by applying the FOD method on a static flux chamber and a pilot-scale sanitary landfill, and the methane emission potential table was established. The study was conducted for a period of 16 weeks from November 2018 to February 2019. The waste used in the pilot-scale sanitary landfill included food and cattle waste. It was observed that the methane emission rate peaked at 0.25 g/m 2 .d during week 10 and decreased to 0.12 g/m 2 .d during week 16. In addition, the carbon dioxide concentration obtained was 45% during the anaerobic phases and around 50% during the aerobic phases. The academic work studied the contribution of leachate pH, waste moisture content, and gas temperature to change methane emission values. The waste moisture content proved to have a direct relationship with the methane emission values, unlike the gas temperature. The leachate pH value during week 10/5 th test day was found to be 7.92, and increased steadily throughout the remaining study period, even though the methane emission values decreased during that period (after week 10/5 th test day).It was observed that the leachate recirculation process decreased the leachate content even though it affected the methane emission values.

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“…LandGEM model, which is also a first order model, was developed by USEPA and used for projecting methane generation in a specific landfill. Rather than other models explained above, this model uses the methane generation potential of solid waste instead of organic carbon in solid waste (Das et al 2016). Mathematical formulation of LandGEM can be seen in Eq.…”

Section: Study Areamentioning

confidence: 99%

“…It assumes that landfill gases occur exponentially by microbial degradation. The mathematical formula of TNO model is (Das et al, 2016) Eq. 1;…”

Section: Study Areamentioning

confidence: 99%

Estimation of Methane Generation and Energy Potential of Nigde Landfill Site Using First Order Mathematical Modelling Approaches

Gök¹

2019

Mühendislik Bilimleri Ve Tasarım Dergisi

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Methane content of landfill gas is approximately 50%. Methane has a significant calorific and economic value, rather than its greenhouse effect. Therefore, it is essentially important to estimate future LFG and methane production in terms of usage and management policies. More than a few models have been used to computerize prospective methane trends based on deposited waste characters and climatic information. This study aims to calculate LFG and methane production using different models. The model inputs were adopted from field measurements, waste characterization, meteorological information, and technical papers prepared by Conestoga-Rovers & Associates (CRA), Intergovernmental Panel on Climate Change (IPCC), and United States Environmental Protection Agency (EPA). This study indicates that the first order models have different outcomes for Niğde Landfill Site and the increase in methane generation potential value causes higher generation volumes of LFGs for the future. The maximum total LFG production is estimated as 600 million m 3 with a methane potential of 126 m 3 /ton and total methane yield for the same method was calculated as 312.5 million m 3. This study also estimates the maximum electricity generation from LFG. The maximum electricity generation was estimated 6.9 million kWh for 2042.

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Estimation of Land-fill Gas Generation from Municipal Solid Waste in Indian Cities

Cited by 28 publications

References 4 publications

Untitled

Untitled

Biogas Production From Waste in a Sanitary Landfill Reactor

Estimation of Methane Generation and Energy Potential of Nigde Landfill Site Using First Order Mathematical Modelling Approaches

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