论文部分内容阅读
我们从近几年对小型高效沼气池的实地生产应用模拟试验中,初步认为,提高和稳定发酵期间的发酵温度,是提高产气量的重要条件之一。试验证明,以作物秸秆为主,加适量入畜粪便混合后,配比浓度调整到25～28％之间,全池表面积60～70％接受太阳光的辐射,发酵周转速率一般为两个月。前期发酵温度平均45℃,中期平均38℃。后期不低于25℃,平均产气率0.35～0.5m~3沼气/m~3池容·日。积肥2～3m~3/m~3池容·年。试验还证明,尽管将原料预处理阶段的高温度带入池内,初步解决了有较高的发酵
In recent years, we simulated the field production of small and high efficiency biogas digesters. It is initially believed that increasing and stabilizing the fermentation temperature during fermentation is one of the important conditions for increasing gas production. Experiments show that the main crop straw, add the appropriate amount of livestock waste mixed, the ratio adjusted to between 25-28% concentration, the entire pool surface area of 60 to 70% of the sun’s radiation, the fermentation turnover rate is generally two months . Pre-fermentation temperature average 45 ℃, medium-term average 38 ℃. The latter is not less than 25 ℃, the average gas production rate 0.35 ~ 0.5m ~ 3 biogas / m ~ 3 Pond capacity day. Fertilizer 2 ~ 3m ~ 3 / m ~ 3 Pond capacity · years. The test also proved that, although the raw material pretreatment stage of the high temperature into the pool, the initial solution to a higher fermentation