Misi S N, Forster C F
School of Civil Engineering, The University of Birmingham, Edgbaston, UK.
Environ Technol. 2002 Apr;23(4):445-51. doi: 10.1080/09593332508618405.
Anaerobic digestion is a well established process for treating many types of organic waste, both solid and liquid. As such, the digestion of cattle slurries and of a range of agricultural wastes has been evaluated and has been successful. Previous batch studies have shown that multi-component mixtures of agro-wastes can be digested successfully, although with some mixtures a degree of both synergism and antagonism occurred. A continuously stirred tank reactor (15 l) was used as a mesophilic (35 degrees C) anaerobic reactor to examine the effect of treating mixtures of fruit and vegetable wastes, cattle slurry, poultry waste and waste activated sludge in which the proportions of the latter two components only were varied. The retention time was kept at 20 days and the loading rate maintained in the range 1.51-1.89 kg VS m(-3) d(-1). Increasing the proportion of poultry waste from 0% to 100% improved the methane yield from 0.164 to 0.244 m CH4 kg(-1) VS added, and caused the VS reduction to decrease slightly. There did not appear to be any synergism or antagonism in the mixtures examined.
厌氧消化是一种处理多种固体和液体有机废物的成熟工艺。因此，对牛粪浆和一系列农业废弃物的消化进行了评估并取得了成功。先前的批次研究表明，农业废弃物的多组分混合物能够成功消化，不过某些混合物存在一定程度的协同作用和拮抗作用。使用一个连续搅拌槽式反应器（15升）作为中温（35摄氏度）厌氧反应器，来研究处理果蔬废弃物、牛粪浆、家禽粪便和废弃活性污泥混合物的效果，其中仅改变了后两种组分的比例。停留时间保持在20天，负荷率维持在1.51 - 1.89千克挥发性固体/立方米·天的范围内。将家禽粪便的比例从0%提高到100%，使甲烷产量从0.164立方米甲烷/千克添加的挥发性固体提高到0.244立方米甲烷/千克添加的挥发性固体，并导致挥发性固体减少量略有下降。在所研究的混合物中似乎不存在任何协同作用或拮抗作用。
