沼气池在使用一段时间后,需要清理池内的残 渣,一般情况下每年停气出料1~2次,称大出料。大 出料可维持较长的时间,且残渣一次性出池,便于作 为肥料集中利用,但此方法劳动强度大,工序复杂, 且会造成用气间断。现有一种简便易行的操作方法, 具体如下: Digester in use for some time, the need to clean up the pool residue, under normal circumstances out of gas out of 1 or 2 times a year, said the big material. Large material can be maintained for a long time, and the residue from the pool, easy to concentrate as a fertilizer, but this method labor-intensive, complex processes, and will result in intermittent gas. There is a simple and easy operation method, as follows: