Industry Info

Precautions during pig manure fermentation

 The fertilizer production line of commercial organic fertilizer: organic material inoculation fermentation (pre-fermentation), main fermentation, crushing, compounding and mixing, drying, granulation, cooling, screening, metering packaging and other processes. Fermentation is the first step in the production of organic fertilizers, because livestock manure and straw are pure organic fertilizers without any treatment or when they are decomposed and fermented. Direct use will cause problems such as lack of oxygen in the soil, breeding of diseases and insect pests, slow fertilizer efficiency, and burning seedlings during fermentation.

Raw material particle size: The particle size of pig manure and auxiliary raw materials must be below 10mm, otherwise it needs to be crushed.
Appropriate material moisture: the optimum fermentation humidity of composting microorganisms is 50-60%, and the limit humidity is 60-65%, so it is best to adjust the material moisture to about 55-60%. And when the water content reaches more than 65%, the probability of non-fermentation in dead tanks is higher.
Control of pig manure and auxiliary materials: According to local agricultural conditions, organic matter such as straw, corn stalks, and peanut stalks can be used as auxiliary materials. The ratio of pig manure to auxiliary materials can be adjusted according to the requirements of fermentation water. (typically 3:1). Materials with a carbon-to-nitrogen ratio of 20-80:1 can be used as compost auxiliary materials. Therefore, organic matter such as dried rice straw, corn stalks, fallen leaves, soybean stalks, and peanut stalks that are common in rural areas can be used as auxiliary materials for compost fermentation after being crushed.
Fermentation cycle: After the pig manure, auxiliary materials, and inoculation materials are mixed in the tank, the pile is turned over for the first time with a compost turning machine, which is recorded as the start time of the fermentation cycle. Generally, after a heating period of 3 to 4 days (5 to 7 days in winter), it enters the high temperature fermentation stage. Taking temperature as the standard, when the temperature of the pile body exceeds 60-70°C and remains for more than 24 hours, the pile can be turned over, and the number of pile turns varies with the seasons. The summer fermentation cycle is generally 15 days, and the winter fermentation cycle is 25 days.

The main equipment of the organic fertilizer equipment processing technology includes fermentation tanks, mixers, overturning equipment, belt conveying equipment, cylindrical sieves, pulverizers, granulators, etc. Our company is a professional fertilizer machine manufacturers, welcome to consult.