Fertilizer fermentation can start fermentation if it meets the requirements of temperature, moisture, etc. Fermentation of livestock manure or leaves, bark, etc. with a fertilizer starter can be easily started in the summer, and the fermentation time in the cold winter is slightly longer. Why is it? What happened to this situation? In addition to the temperature factor, there are other factors that affect it?
First, the material is frozen outside for a long time and there is ice. In the winter in the north, the outdoor temperature is basically around minus 5 degrees. The moisture in the material is quickly frozen. The structure of the material changes with the condensation of water. For example, pig manure becomes extremely hard due to the condensation of moisture, and there is Ice cubes. Fermentation is extremely unfavorable, although fertilisers contain low-temperature bacteria. However, it is very difficult to deal with ice.
The material is impure and impurities are present. Some fermentation materials contain various impurities that inhibit the proliferation of microorganisms, such as astragalus, flowers and bark, resins, stones, slag and other inorganic impurities.
The medical clean engineering system covers clean operating rooms, ICUs, disinfecting supply rooms, laboratories, clinical laboratories, vein deployment centers and other sites. Decoration materials, clean air-conditioners and medical devices that meet the cleanliness requirements must be adopted to ensure cleanliness, especially for clean operating rooms, ICUs, disinfecting supply rooms and other sites subject to cleanliness requirements of the hospital.
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