Assessment of Greenhouse Gas Emission Savings and Methane Correction Factor in an Aerobic Municipal Solid Waste Landfill

Song, Sang‐Hoon; Ko, Jun-Hyeok; Park, Sang‐Heum; Kim, Ran-Hui; Kim, Sang-Min; Lee, Namhoon; Park, Jin‐Kyu

doi:10.9786/kswm.2021.38.4.303

J. Korea Soc. Waste Manag

2021

DOI: 10.9786/kswm.2021.38.4.303

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Assessment of Greenhouse Gas Emission Savings and Methane Correction Factor in an Aerobic Municipal Solid Waste Landfill

Sang‐Hoon Song¹,

Jun-Hyeok Ko²,

Sang‐Heum Park³

et al.

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Effect of landfill in-situ aeration with novel air amplifier: A case study

Song¹,

Kim²,

Kim³

et al. 2023

Environmental Engineering Research

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Landfill aeration may cause economic problems due to the amount of power consumed by blowers. Thus, this study proposes the use of an air amplifier to reduce the power consumption of air injection into landfills. The developed air amplifier is an aerodynamic device that induces a large amount of airflow using a small quantity of compressed air caused by the Coanda effect. Field experiment results demonstrated that the use of the air amplifier reduced power consumption by at least 90% and showed an air amplification effect of approximately 3.5 times compared with existing in-situ aeration systems. After aeration, the methane (CH4) reduction efficiency was 90.3%. The CH4/CO2 ratio was 0.12 (0.06–0.25) on average, and the CH4/CO2 ratio decreased as the oxygen concentration increased. Thus, the air amplifier is a low-cost solution for landfill aeration systems. In addition, aeration using existing leachate collection and drainage pipes was found to be more economical than air injection using air injection wells. However, despite the air injection, approximately 20% of organic carbon was decomposed anaerobically. The CH4/CO2 ratio range of 0.56–0.90 was presented as a criterion for categorizing a landfill as semi-aerobic.

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Effect of landfill in-situ aeration with novel air amplifier: A case study

Song¹,

Kim²,

Kim³

et al. 2023

Environmental Engineering Research

View full text Add to dashboard Cite

show abstract

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Assessment of Greenhouse Gas Emission Savings and Methane Correction Factor in an Aerobic Municipal Solid Waste Landfill

Cited by 1 publication

References 0 publications

Effect of landfill in-situ aeration with novel air amplifier: A case study

Effect of landfill in-situ aeration with novel air amplifier: A case study

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