Estimation of methane gas by LandGEM model from Yasuj municipal solid waste landfill, Iran

Fallahizadeh, Saeid; Rahmatinia, Masoumeh; Mohammadi, Zakarya; Vaezzadeh, Marzieh; Tajamiri, Ali; Soleimani, Hamed

doi:10.1016/j.mex.2019.02.013

Cited by 49 publications

(36 citation statements)

References 25 publications

(24 reference statements)

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“…From this point on, the production declined but still remained significant for at least twenty more years. The simulated curves were similar to the curves that are calculated by other studies (e.g., Fallahizadeh et al, (2019) [23]). and carbon dioxide were 50%, the molecular weight of carbon dioxide was significantly higher, and thus the annual produced mass of the two gases varied by a large margin.…”

Section: Resultssupporting

confidence: 87%

“…From this point on, the production declined but still remained significant for at least twenty more years. The simulated curves were similar to the curves that are calculated by other studies (e.g., Fallahizadeh et al, (2019) [23]). A significant aspect of this analysis was the energy recovery potential from the operation of landfill gas CHP, and this answer was not a straightforward one.…”

Section: Resultssupporting

confidence: 87%

See 1 more Smart Citation

Applications of the 3T Method and the R1 Formula as Efficiency Assessment Tools for Comparing Waste-to-Energy and Landfilling

Vakalis

Μουστάκας

2019

Energies

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The assessment of novel waste-to-energy technologies has several drawbacks due to the nature of the R1 formula. The 3T method, which aims to cover this gap, combines thermodynamic parameters in a radar graph and the overall efficiency is calculated from the area of the trapezoid. The present study expands the application of the 3T method in order to make it suitable for utilization in other energy-from-waste technologies. In the framework of this study, a 3T specialized solution is developed for the case of landfilling plus landfill gas recovery, with the potential inclusion of landfill mining. Numerical applications have been performed for waste-to-energy and landfilling by using both the R1 formula and the 3T method. The model Land GEM was used for the calculation of the total landfill gas. The Combined Heat and Power (CHP) efficiency of the landfill gas CHP efficiency was 16.6%–33.1%, and for the waste-to-energy plant, the CHP efficiency was over 70%. The full range of parameters, like metal recovery and quality of CHP, were not fully reflected by the R1 formula, which returned values of 1.07 for waste-to-energy and from 0.37 to 0.63 for different landfilling scenarios. Contrary to that, the 3T method calculated values between 0.091 and 0.307 for the waste-to-energy plant and values between 0.011 and 0.121 for the various landfilling scenarios. The 3T method is able to account for the recovery of materials like metals and assess the quality of the output flows. The 3T method was able to successfully provide a solution for the case of landfilling plus landfill gas recovery, with the potential inclusion of landfill mining, and directly compares the results with the conventional case of waste-to-energy.

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Section: Resultssupporting

confidence: 87%

“…From this point on, the production declined but still remained significant for at least twenty more years. The simulated curves were similar to the curves that are calculated by other studies (e.g., Fallahizadeh et al, (2019) [23]). A significant aspect of this analysis was the energy recovery potential from the operation of landfill gas CHP, and this answer was not a straightforward one.…”

Section: Resultssupporting

confidence: 87%

Applications of the 3T Method and the R1 Formula as Efficiency Assessment Tools for Comparing Waste-to-Energy and Landfilling

Vakalis

Μουστάκας

2019

Energies

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“…Researchers use it to evaluate the waste management projects with considering the economic and environmental benefits [44][45][46][47][48]. In addition, the landfill gas emissions modeling (LandGEM) is specifically used to study the GHG emissions from landfill sites [49,50].This paper used the guidance method of the IPCC and built the LCA framework to assess the GHG emissions from MSW, including the processes of collection and transportation, landfill, incineration, composting, electricity generation from incineration, and recycling of renewable resources for emission reduction.…”

Section: Introductionmentioning

confidence: 99%

An Empirical Study on Greenhouse Gas Emission Calculations Under Different Municipal Solid Waste Management Strategies

Xin

Zhang

Tsai³

et al. 2020

Applied Sciences

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The Chinese government is committed to ensuring separation of municipal solid waste (MSW), promoting the integrated development of the MSW management system with the renewable resource recovery system, and achieving construction of ecological civilization. Guided by the methods in Intergovernmental Panel on Climate Change (IPCC) guidelines, the greenhouse gas (GHG) emissions under five waste disposal scenarios in Beijing under the life cycle framework were assessed in this research. The study included collection and transportation, as well as three end disposal methods (sanitary landfill, incineration, and composting), and the emission reduction benefits of electricity generation from incineration and recycling of renewable resources were taken into account. The results show that an emission reduction benefit of 70.82% could be achieved under Scenario 5 in which kitchen waste and recyclables are sorted and recycled and the residue is incinerated, and the selection of the optimal strategy was not affected by changes in the separation rate. In addition, landfill would emit more GHG than incineration and composting. The results of this study are helpful for the government to make a decision on MSW management considering the goal of GHG emission reduction.

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“…Sanitary landfills differ from the regular dumping site with its lining system and its leachate and landfill gas collection systems [24]. The sanitary landfill's biological, physical and chemical processes results in the production of leachate and landfill gas (LFG) -the outcomes are produced through anaerobic conditions [4,24]. The sanitary landfills considered as a renewable bioreactor, it is considered as an ideal solution to risks related to MSW dumping, also, it is operationally a low-priced method of waste dumping [4,8,17,24].…”

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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Estimation of methane gas by LandGEM model from Yasuj municipal solid waste landfill, Iran

Abstract: Graphical abstract

Cited by 49 publications

References 25 publications

Applications of the 3T Method and the R1 Formula as Efficiency Assessment Tools for Comparing Waste-to-Energy and Landfilling

Applications of the 3T Method and the R1 Formula as Efficiency Assessment Tools for Comparing Waste-to-Energy and Landfilling

An Empirical Study on Greenhouse Gas Emission Calculations Under Different Municipal Solid Waste Management Strategies

Biogas Production From Waste in a Sanitary Landfill Reactor

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