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| 매립지 표면의 메탄 발산량 실측을 위한 플럭스 챔버의 방법론적 비교와 최적화 |
| 정진희1, 강수지1, 임종명2, 이진홍1 |
1충남대학교 환경공학과
2한국원자력연구원 |
| Comparison and Optimization of Flux Chamber Methods of Methane Emissions from Landfill Surface Area |
| Jin Hee Jeong1, Su Ji Kang1, Jong Myoung Lim2, Jin-Hong Lee1 |
1Department of Environmental Engineering, Chungnam National University
2Environmental Radioactivity Assessment Team, Korea Atomic Energy Research Institute |
| Corresponding author |
Jin-Hong Lee ,Tel: 042-823-7546, Fax: 042-822-5610, Email: jinlee@cnu.ac.kr
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Received: April 28, 2016; Revised: July 12, 2016; Accepted: August 11, 2016. Published online: October 31, 2016. |
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| ABSTRACT |
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As one of the most cost-effective methods for surface emission measurements, flux chamber method has been used worldwide. It can be classified into two types: SFC (with slope method) and DFC (with steady-state method). SFC (static flux chamber) type needs only simple equipment and is easy to handle. However, the value of flux might vary with SFC method, because it assumes that the change of concentration in chamber is linear with time. Although more specific equipments are required for DFC (dynamic flux chamber) method, it can lead to a constant result without any ambiguity. We made a self-designed DFC using a small and compact kit, which recorded good sample homogeneity (RSD < 5%) and recovery ( > 90%). Relative expanded measurement uncertainty of this improved DFC method was 7.37%, which mainly came from uncontrolled sweep air. The study shows that the improved DFC method can be used to collect highly reliable emission data from large landfill area. |
| Key Words:
Flux Chamber, Landfill, Surface Emission, Methane, Measurement Uncertainty |
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