Estimation of Oxidation factor (OX) in landfill surface using landfill gas monitoring data in Republic of Korea

• JEONG Sangjae

  Seoul National University

• KIM Jae Young

  Seoul National University

Abstract

 . In this study, OX is estimated in four landfills by comparison of landfill gas composition in vent pipes and landfill surface. Landfill gas fluxes from surface have been measured using closed flux chamber. On the other hand, the means of CH₄/CO₂ ratio by vol. were ranged from 0.04 to 21.24 at surface. When spatial interpolation model is applied, the CH₄/CO₂ ratio at surface ranged from 0.07 to 0.49. Some extreme values at surface flux resulted in extremely high CH₄/CO₂ ratio which causes negative value in OX. Therefore, spatial interpolation must be applied to surface flux measurements. When applying spatial interpolation, OX in four landfills ranged from 0.42 to 0.88 which indicates significant amount of oxidation at landfill surface. Further studies on temporal changes on oxidation factor are needed to develop more reliable emission factors.

Journal

• Proceedings of the Annual Conference of Japan Society of Material Cycles and Waste Management

  Proceedings of the Annual Conference of Japan Society of Material Cycles and Waste Management 28 (0), 573-, 2017

  Japan Society of Material Cycles and Waste Management

Keywords

• Landfill gas
• Methane oxidation
• Spatial interpolation

Details

• CRID: 1390282680566983808
• NII Article ID: 130006230080
• DOI: 10.14912/jsmcwm.28.0_573
• Text Lang: en
• Data Source:
  • JaLC
  • CiNii Articles
• Abstract License Flag: Disallowed