Site-specific determination of methane generation potential and estimation of landfill gas emissions from municipal solid waste landfill: a case study in Nam Binh Duong, Vietnam

Anh, Lê Hùng; Truc, Nguyen Thi Thanh; Tuyen, Nguyen Thi Khanh; Bang, Ho Quoc; Son, Nguyen Phong; Schneider, Petra; Lee, Byeong–Kyu; Μουστάκας, Κωνσταντίνος

doi:10.1007/s13399-020-01192-0

Cited by 12 publications

(11 citation statements)

References 27 publications

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“…Different waste compositions have varying degradation rates [2]. This study estimated a k value of 0.21 per year, which falls within the range of other studies [2,36,37]. Machado et al conducted field measurements and laboratory tests on landfilled MSW in Brazil and found a good agreement of k value at 0.21 [2].…”

Section: Estimation Of Ch4 Generationsupporting

confidence: 80%

“…The CH4 generation potential (L0) was calculated using the IPCC method. A value of 90 m 3 /t was obtained, which is higher than that reported in Vietnam [37] due to the higher organic fraction of MSW in Phnom Penh. However, the estimated L0 value for Phnom Penh is lower than the recommended of 96 m 3 /t for the inventory wet landfill in the LandGEM model.…”

Section: Estimation Of Ch4 Generationcontrasting

confidence: 69%

“…Machado et al conducted field measurements and laboratory tests on landfilled MSW in Brazil and found a good agreement of k value at 0.21 [2]. Meanwhile, Wangyao et al [36] and Anh et al [37] obtained relatively higher decay rates (k) from field measurements in Thailand and Vietnam at 0.33 and 0.355 per year, respectively. The LandGEM model recommends a default value of k ranging from 0.02 to 0.7 per year, while the IPCC-recommended default value for tropical areas is 0.17 per year for bulky waste [4].…”

Section: Estimation Of Ch4 Generationmentioning

confidence: 99%

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Landfill Biogas Recovery and Its Contribution to Greenhouse Gas Mitigation

Pheakdey¹,

Quan²,

Noudeng³

et al. 2023

Preprint

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This study assesses the biomethane (CH4) generation and greenhouse gas (GHG) emissions resulting from municipal solid waste landfilling in Phnom Penh, Cambodia, with a focus on the impact of fugitive CH4 emissions and operation processes in four landfilling scenarios: simple dumping (S1), improved management with leachate treatment (S2), engineered landfill with flaring (S3), and engineered landfill with energy recovery (S4). The study also considered the environmental benefits of carbon sequestration and landfill gas utilization. The LandGEM and IPCC FOD models were used to calculate CH4 generation over the period of 2009-2022, and it was found that approximately 18 and 21 M kg/year of CH4 are released, respectively. The energy potential from CH4 recovery was 51–61 GWh/year. Overall GHG emissions in S2 were the highest, amounting to 409–509 M kg CO2-eq/year, while S1 had lower emissions at 397–496 M kg CO2-eq/year. Flaring captured CH4 in S3 could reduce GHG emissions by at least 55%, and using captured CH4 for electricity production in S4 could mitigate at least 83% of GHG emissions. Electricity recovery (S4) could avoid significant amounts of GHG emissions (˗104.5 kg CO2-eq/tMSW). The study suggests that landfill gas-to-energy could significantly reduce GHG emissions.

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Section: Estimation Of Ch4 Generationsupporting

confidence: 80%

Section: Estimation Of Ch4 Generationcontrasting

confidence: 69%

Section: Estimation Of Ch4 Generationmentioning

confidence: 99%

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Landfill Biogas Recovery and Its Contribution to Greenhouse Gas Mitigation

Pheakdey¹,

Quan²,

Noudeng³

et al. 2023

Preprint

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“…Moreover, the CH4 generation potential (L0) is more difficult to determine the emissions of gases than the CH4 (k) generation rate factor. When compared with the case studies at South Binh Duong landfill in Binh Duong province [46] and Tan Lap 1 landfill in Tien Giang province [30], belonging to the Southern Key Economic Zone, Vietnam showed that the optimal CH4 generation potential value, L0, opt(x) was all significantly higher, particularly L0, opt-SouthBinhDuong = 81 < L0, opt-TanLap1 = 110 < L0, opt-KhanhSon = 138 m 3 /tonne. Nevertheless, this optimal value, L0, opt-KhanhSon was still lower than the recommended default values of IPCC [25], [40].…”

Section: Discussionmentioning

confidence: 99%

“…Nevertheless, this optimal value, L0, opt-KhanhSon was still lower than the recommended default values of IPCC [25], [40]. This can be explained by the fact that the MSW receiving sources from the Tan Lap 1 landfill have been smaller in scale and had much less diverse waste components than in the Khanh Son landfill, and in the case of the South Binh Duong landfill, organic matter components have commonly accounted for only 45%, since roughly 55% of the organic wastes have sorted and treated at the composting areas [46]. Furthermore, according to the trend of CH4 emission rate constant, k in the range 0.4 -0.5 year -1 is the most suitable for the climate conditions in the Khanh Son landfill site.…”

Section: Discussionmentioning

confidence: 99%

Energy recovery from municipal solid waste landfill for a sustainable circular economy in Danang City, Vietnam

Nguyen

Cao

Bui

2022

IOP Conf. Ser.: Earth Environ. Sci.

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Sustainable development of Danang City in the direction of circular economy (CE) and a zero-waste city is an urgent solution because the impacts of local municipal solid waste (MSW) generation in the city’s districts are increasingly causing serious pressure for MSW management and treatment. Segregation of waste at source, reuse, recycling, and energy recovery from landfill gas (LFG) generated is considered as one of the keys to solving the dilemma of sustainable waste management. This study analyzed and evaluated the generation of greenhouse gases (GHGs), mainly CH4 and CO2 gases from the Khanh Son landfill based on the application of the EnLandFill software and assessed the potential of energy recovery, clean electricity generation, as well as GHG emission reduction in the period of 2021 – 2050 based on the CE-oriented scenario of the city government. With the potential to recover LFGs in the period of 2021 – 2050 could reach 136.9 million m3 (with efficiency E = 90%), the total annual potential value of electricity generation is estimated at 420.767 million kWh, equivalent to the total potential for GHGs emission reduction (GWP) about 271.25 thousand tCO2-eq. At the same time, this will be a baseline study to serve as the basis for extensive assessments and to suggest the most appropriate waste management strategies and policies create a circular economy in the future.

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