http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Biogas production from food waste using semi-continuous anaerobic digester
이슬람 ( M. N. Islam ),윤형선 ( H. S. Yoon ),송형운 ( H. W. Song ),박금주 ( K. J. Park ) 한국농업기계학회 2011 한국농업기계학회 학술발표논문집 Vol.16 No.1
Incineration is not suitable due to the high moisture contents and low heating value of food waste. So, mesophilic anaerobic digestion has been one of the most favorable options for food waste disposal. In this study, the biogas production from food waste was investigated using lab scale semi-continuous stirred tank reactor (SCSTR) at 35℃ with 30d HRT and 30L working volume. The mesophilic digestion test was performed with three different feed materials (food waste) and food to microorganism (F/M) ratios (0.13, 0.34, and 0.27) in the same experiment. The results showed that the F/M ratios significantly affected the biogas production rate. The highest production rate was obtained at F/M ratio of 0.13. Biogas produced in anaerobic digestion consists of 68.7% CH4 and 31.2% CO<sub>2</sub>. The average biogas and methane production of digester were 29.96 L/Kg VS day<sup>-1</sup> and 20.58 L/Kg VS day<sup>-1</sup>, respectively. The CH<sub>4</sub> could be calculated as the heat energy 1.85 Kcal/Kg VS day<sup>-1</sup>. The digestion was operated without addition of chemicals or nutrients into the system.