沼气池的几种搅拌方法

• 作 者: 沼供
• 出 处: 农村实用工程技术(农业工程)
• 发表日期: 1986年05期
• 关键词: 发酵原料 沼气细菌 产气率 人畜粪便 浮渣 出料间 料液浓度 搅拌装置 清液 经济技术条件

沼气池在发酵过程中,勤搅拌是提高产气量的一个重要措施。这是因为发酵原料在静止状态下,在沼气池中一般会分为三层:上层为浮渣,这层发酵原料较多,但菌种少,如果浮渣太厚,还会影响沼气进入气箱;中层是清液,含水份多,发酵原料少;下层为沉渣,发酵原料多,沼气菌种也多,是产生沼气的主要部位,但由于底层的水压较高,产生的沼气在较高的压力下,往往不易释放出来,如不经常搅拌,是很难多产气的。

Digester in the fermentation process, ground mixing is an important measure to increase gas production. This is because the fermentation of raw materials at rest, the biogas digesters are generally divided into three layers: the upper layer of scum, this layer of fermentation more raw materials, but less bacteria, if the scum is too thick, but also affect the gas into the gas Tank; middle is a clear liquid, containing more water, less fermentation raw materials; the lower sediment, more fermentation materials, biogas species are more, is the main part of biogas production, but due to the lower water pressure, resulting in biogas Higher pressure, often not easy to release, such as not often stirred, it is difficult to prolific gas.