Family method of rapid fermentation of sawdust

First of all, it is necessary to regulate the moisture, wet the sawdust with water, add 1 kilogram of sawdust starter bacteria to each cubic sawdust and mix it; secondly, build a pile of fermentation, which is 1.2 to 1.5 meters high and 2 meters wide; then do the fermentation and turn it over four times; finally, the sawdust is fermented and the color is uniform brown.

1. Regulate and control moisture. Pour out the sawdust of the raw material in the fermentation tank, wet it with water, grasp the appropriate moisture of 60-65%, then add 1 kg of Gymboree sawdust starter to each cubic sawdust and mix evenly.

2. Build a pile for fermentation. Build a pile while spreading bacteria, 1.2 to 1.5 meters high (remember not less than 80 centimeters) and 2 meters wide. the length of the pile can be freely adjusted according to the number of fermentation materials, the general length is not less than 2 meters, and the total volume of a single fermentation reactor is not less than 3 cubic meters. After the sawdust fermentation stack is completed, a thermometer is inserted into the pile to observe the temperature change.

3. Fermentation overturned. The temperature rises to above 60 ℃ about a week after the reactor is built, and when the high temperature lasts for 1-2 days, the first turn of the pile is carried out, and the mixing degree of the material is paid attention to during the turn, so that the turning process becomes a mixing process at the same time. After the first turn, the temperature reaches more than 60 ℃, and the second turn is carried out. If the material is found to be partially dry during the turn-over process, it should be sprayed with water until the appropriate water content. The third and fourth turning is the same as the second turning. Then enter the sawdust fermentation stage, the temperature is 45-50 ℃, in this stage, according to the need to turn the fermentation pile 1 or 2 times, and finally to the end of the fermentation process.

4. Inspection standard. After the sawdust fermentation, the color is uniform brown, actinomycetes cover the whole material pile, and the feel of the material is soft and elastic, which indicates that the sawdust has been fermented and mature, and the whole fermentation process is over, and the material can be tested out of the tank. The sawdust after fermentation is required to pass the test of physical and chemical properties such as moisture, pH value, EC value and so on. General: pH5.5~7.5, EC value less than 1.5, moisture control at 30%-40%.