혐기성 및 호기성 방법에 의한 폐기물의 생분해성유기물 측정방법의 재현성과 상관관계에 관한 연구 (Correlation between Anaerobic and Aerobic Method and Its Reproducibility for Measuring Biodegradable Organics in Solid Waste)

서지정보

· 발행기관 : 한국폐기물자원순환학회
· 수록지 정보 : 한국폐기물자원순환학회지 / 26권 / 2호 / 119 ~ 127페이지
· 저자명 : 김혜진, 정새롬, 박진규, 이남훈

초록

The biological stabilization of MSW (Municipal Solid Waste) is one of the main issues related to the evaluation of the long-term emission potential and the consequent environmental impact of MSW landfills. For biodegradable organics, the respiration activity test with aerobic method and the biogas production potential test with anaerobic method have been widely known and universally applicable in recent years. This paper investigated the reproducibility and the correlation of the anaerobic and aerobic methods for the evaluation of the biodegradable organics. Anaerobic method based on BMP assay (Biochemical Methane Potential assay) was carried out at 35℃ for 50 days. A aerobic method based on CO2 production by ASTM D5209-92 was carried out for 14 days. Both tests were carried out with the MSW samples and wastes excavated from the closed MSW landfill. In the case of the MSW samples, both anaerobic and aerobic methods showed a good reproducibility (CV (coefficient of variation) is less than 10%). And, the results of both methods were linearly correlated to each other. The evaluation of MSW samples showed the well-correlated coefficient of R2 = 0.90. Consequently, there are two main reasons that the aerobic method is more pertinent for the evaluation of the biodegradable organics of the solid wastes, the first is that the aerobic method is linearly correlated to the anaerobic method and the second is that the test period of the aerobic method is pretty shorter than the period of the anaerobic method.

영어초록

The biological stabilization of MSW (Municipal Solid Waste) is one of the main issues related to the evaluation of the long-term emission potential and the consequent environmental impact of MSW landfills. For biodegradable organics, the respiration activity test with aerobic method and the biogas production potential test with anaerobic method have been widely known and universally applicable in recent years. This paper investigated the reproducibility and the correlation of the anaerobic and aerobic methods for the evaluation of the biodegradable organics. Anaerobic method based on BMP assay (Biochemical Methane Potential assay) was carried out at 35℃ for 50 days. A aerobic method based on CO2 production by ASTM D5209-92 was carried out for 14 days. Both tests were carried out with the MSW samples and wastes excavated from the closed MSW landfill. In the case of the MSW samples, both anaerobic and aerobic methods showed a good reproducibility (CV (coefficient of variation) is less than 10%). And, the results of both methods were linearly correlated to each other. The evaluation of MSW samples showed the well-correlated coefficient of R2 = 0.90. Consequently, there are two main reasons that the aerobic method is more pertinent for the evaluation of the biodegradable organics of the solid wastes, the first is that the aerobic method is linearly correlated to the anaerobic method and the second is that the test period of the aerobic method is pretty shorter than the period of the anaerobic method.

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