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Anaerobic codigestion of kitchen waste with cattle manure in semicontinuous mode
LI RongPing;LI XiuJin*
Journal of Beijing University of Chemical Technology ›› 2007, Vol. 34 ›› Issue (s2) : 8-11.
PDF(930 KB)
PDF(930 KB)
Anaerobic codigestion of kitchen waste with cattle manure in semicontinuous mode
A comparative study of the singledigestion of kitchen waste, cattle manure and co-digestion of the two wastes was conducted in semicontinuous mode at the mesophilic temperature of 35℃. The results showed that codigestion was significantly superior to singledigestion, due to the optimal pH range for hydrolys is and acidification, stronger buffer capacity and wellbalanced C/N ratio duri ng the codigestion process. When the ratio of kitchen waste to manure was 3∶1, a methane yield of 0.23L CH4/(gVS) was achieved, which was 3:8 and 1:6 times that obtained with cattle manure and kitchen waste, respectively. The observed VS removal efficiency of 71.9% indicates that codigestion is an effective way to enhance the digestion performance.
［1］付胜涛， 于水利， 严晓菊， 等. 剩余活性污泥和厨余垃圾的混合中温厌氧消化［J］. 环境科学, 2006, 27(7): 1459-1463.
［2］刘广青， 张瑞红， ELMASHAD H M, 等. 批式与两相高温厌氧消化厨余和杂草废弃物对比研究［J］. 中国农业大学学报, 2006, 11(6): 111-115.
［3］HAN S K, SHIN H S, SONG Y C, et a1. Novel anaerobic process for the recovery of methane and compost from food waste［J］. Water Science and Technology, 2002, 45(10): 313-319.
［4］ELMASHAD H M, ZHANG R. Anaerobic codigestion of food waste and dairy manure［C］∥American Society of Agricultural and Biological Engineers. 2006 ASABE Annual International Meeting, Portland Oregon, 9-12 July, 2006.
［5］CALLAGHAN F J, WASE D A J, THAYANITHY K, et al. Codigestion of waste organic solids: batch studies［J］. Bioresource Technology, 1999, 67: 117-122.
［6］Standard methods for the examination of water and wastewater［M］. 20th ed. Washington DC: American Public Health Association, 1998.
［7］SYMONS G E, BUSHWELL A M. The methane fermentation of carbohydrate［J］. Journal of the American Chemical Society, 1933, 55: 2028-2039.
［8］CALLAGHAN F J, WASE D A J, THAYANITHY K, et al. Continuous codigestion of cattle slurry with fruit and vegetable wastes and chicken manure［J］. Bi
omass and Bioenergy, 2002, 27: 71-77.
［9］贺延龄. 废水的厌氧生物处理［M］. 北京: 中国轻工业出版社, 1999. 〖ZK)〗
［10］HANSEN K H, ANGELIDAKI I,AHRING B K. Anaerobic digestion of swine manure: inhibition by ammonia［J］. Water resource, 1998, 32(1): 5-12.
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