How to get the digester to start in winter

During the low temperature season, people had to stop building biogas digesters because the new biogas digesters could not be started quickly. The reason for this is that the underground temperature has been lowered during the construction of the biogas digester. Here's a warming method that will only cost you money without spending money. First of all, we must know the total amount of biogas digesters, according to inoculum: feces material: water is 1:2:5 ready. Raw material selection 1. Select the manure in the old pig pit that is used for a long time and add fresh pig manure. Bubbles are generated by stirring with a stick and black on the surface. This feces can be used as inoculum and fecal material. Put plastic sheets on the pits and press them well with earth to warm the daylight. 2. If it is fresh swine manure (it can't be used immediately after excrement). Choose a sunny day and place the raw materials in a place where sunlight is better. The floor is covered with plastic film and the fertilizer and inoculum are mixed and layered and sprinkled. It is advisable to use a low flow of feces. Plastic film on the cover, insulation at night, stacking time of 2-3 days. 3. Bring a large pot of boiling water to the pool to the pool at 20oC. The first addition of water must not be overheated. Note that the pool temperature is not higher than 25oC. Burn fire and add water while adding fire carbon to the pool and let the steam in the pool increase the temperature of the pool wall. This operation adds enough water to the five waters required in the tank. At the end, add the stack of inoculum and feces. Sealing the pool cover, the pool is well insulated, and the gas can be ignited within 3-5 days.

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