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一、新建沼气池装料后总是不产气出现这种情况,大体上有以下原因:①装料时没有加入足够数量的接种物,池内产甲烷菌少,使沼气发酵不能进行。②加入沼气池的料液水温低于12℃以下,抑制了甲烷菌的生命活动,如在北方寒冷地区第一次加料时是寒冷季节,池温低,会造成长时间不产气。③沼气池的发酵液浓度过大,造成乙酸等使挥发酸大量积累导致料液酸化。处理方法:一是取出部分料液,加入正常产气一个月以上的沼气池的沼液;二是加入晒热的水。
First, the new biogas digester will not produce gas after charging this situation, in general, the following reasons: ① loading did not join a sufficient number of inoculum, methane production in the pool less biogas fermentation can not be carried out. ② The temperature of the feed liquid added to the biogas digester is lower than 12 ℃, which inhibits the life activities of methane bacteria. For example, it is cold season when the first feed in the northern cold region and the pool temperature is low, which will result in no gas production for a long time. ③ digester fermentation broth concentration is too large, resulting in a large number of acetic acid and other volatile acids lead acidification of feed solution. Treatment methods: First, remove part of the feed solution, adding more than one month of normal gas production biogas digester; second is to add hot water.