The purpose of this study was to evaluate the characteristic and efficiency of anaerobic digestion (AD) of various organic wastes, and to find a way to enhance the efficiency of AD. Ten types of organic wastes including slaughterhouse waste (SHW), agricultural by-products (AB), animal manure (AM), sewage sludge, and food waste (FW) were selected. Elementary analysis was carried out to confirm the effect of C/N ratio on AD. Elementary analysis of the AB of maize showed the highest C/N ratio of 42.55. The lowest C/N ratio of 3.41 and 3.46, respectively, appeared from the SHW of the blood from cattle and swine. The cattle rumen content of SHW had a C/N ratio of 19.2, which was included at range of optimum C/N ratio, and AM showed a low C/N ratio because of the lack of a carbon source. The AB of beets had the highest biogas yield of 0.81 m3/kgVS, which was measured by the BMP test. Biodegradability was also calculated based on the BMP test result. FW was found to have the highest biodegradability of 92.14%. However, cattle rumen contents had low biodegradability (34.02%) because their substrate material consists of fibroid, while AM had the lowest biodegradability (15.34%) because of its low C/N ratio.

I. 서 론
 II. 재료 및 방법
  1. 시료 채취 및 분석
  2. BMP test
  3. 바이오가스 수율 및 생분해도
 III. 결과 및 고찰
  1. 성분 분석
  2. 원소분석
  3. 바이오가스 수율 및 생분해도
 IV. 결 론
 References

• 정재훈(경기대학교 환경에너지공학과) | Jae-Hoon Jeung
• 정성엽(경기대학교 환경에너지공학과) | Seong-Yeob Jeong
• 문대헌(경기대학교 환경에너지공학과) | Dea-Hyun Moon
• 장순웅(경기대학교 환경에너지공학과) | Soon-Woong Chang Corresponding Author