Evaluation of mixing effects on solid-state anaerobic digestion performance of dairy manure and sawdust bedding mixtures
메타 데이터
바이오화학분류
바이오정밀화학
연료
논문
Evaluation of mixing effects on solid-state anaerobic digestion performance of dairy manure and sawdust bedding mixtures
학술지
Korean journal of Soil Science and Fertilizer
저자명
Jo, Hyeonsoo; Lee, Seunghun; Lee, Jaehee; Kim, Eunjong; Ahn, Heekwon
초록
The influence of mixing on biogas production and organic material removal performance of solid state anaerobic digestion of dairy manure and sawdust bedding mixtures was evaluated using 22 L volume lab-scale digesters. After 45 days of anaerobic digestion at <TEX>$37^{\circ}C$</TEX>, cumulative methane yield of unmixed test unit (<TEX>$73.1N{\cdot}mL/g-VS$</TEX>) was almost 1.3 times of that of mixed one (<TEX>$56.3N{\cdot}mL/g-VS$</TEX>). The biodegradable volatile solids removal rate of unmixed test unit was 67%, which was almost 28% greater than mixed one. Our results reveal that unmixed condition is better than mixed one in terms of biogas production and organic material reduction.