In this study, the efficiency of the anaerobic co-digestion of three categories of rural organic waste (animal manure, slaughterhouse waste, and agricultural by-products) and different mixtures of them was investigated. In addition, the relationship between digestion efficiency and the carbon/nitrogen (C/N) ratio was also conducted. Five different mixtures of feedstock including animal manure as a control were estimated by the biochemical methane potential (BMP) test. The results indicate that the biodegradability of the feedstock mixtures was in the range of 62 ~ 75%, which was at least 1.4 times higher than that of single digestion (43%), while the methane yield was increased by almost twice that of single digestion (0.14 to 0.24 ~ 0.41 m3 CH4/kg VSadd). After the BMP test, four feedstock mixtures were selected for a lab-scale reactor, including animal manure as a control sample. The highest methane yield of 0.355 m3 CH4/kg VSadd was obtained from the A4-mixture sample. With regard to the C/N ratio, the mixture materials showed an increase in methane yield by at least 1.2 times (13.4 to 16.4 ~ 21.3%), which means that the C/N ratio had an effect on the performance of co-anaerobic digestion.

I. 서 론
 II. 연구 및 방법
  1. 조사대상 폐기물 및 분석
  2. BMP test
  3. 메탄수율 및 생분해도 평가
  4. Lab. 규모 혐기성 소화조
 III. 결과 및 고찰
  1. 성분분석 및 원소분석 결과
  2. 혐기성소화 효율 평가
  3. Lab. 규모 반응조 운영 결과
 IV. 결 론
 사 사
 References

• 장순웅(경기대학교 환경에너지공학과, Department of Environmental Energy Engineering, Kyonggi University) | Soon Woong Chang Corresponding author