Method for processing fertilizer in pig manure organic fertilizer production line

Organic fertilizer machine can solve the problem of manure emission perfectly, and the treated manure can bring additional income to pig farms. Pig farms can sell the treated pig manure to organic fertilizer producers. After a series of processing, the pig manure can be processed into nutrient rich ecological organic fertilizer. Only through sufficient composting and fermentation, can the parasites, eggs and infectious bacteria in pig manure be inactivated through the process of composting and fermentation. Let’s share the details of pig manure fermentation process.

A. Raw material particle size: In order to achieve the granulation size of the organic fertilizer granulator, the particle size of pig manure and auxiliary raw materials must be below 10mm, otherwise it needs to be crushed;
B. Suitable material moisture: The optimum fermentation humidity for composting microorganisms is 50-60%, and the ultimate humidity is 60-65%. Therefore, it is best to adjust the material moisture to about 55-60%. When the moisture reaches more than 65%, there is a higher chance of dead tank without fermentation.
C. Pig manure and auxiliary materials control: According to local agricultural conditions, the production process of pig manure fertilizer can use organic matter such as straw, corn stalks, and peanut stems as auxiliary materials. The ratio of pig manure and auxiliary materials can be adjusted according to the requirements of fermentation water. (Generally 3:1), the composting auxiliary materials can choose the raw materials with a carbon to nitrogen ratio of 20~80:1. Therefore, common dry straw, corn stalks, fallen leaves, soybean stems, peanut stems and other organic matter can be used as auxiliary materials for composting and fermentation after being crushed.
D. Fermentation cycle: After pig manure, auxiliary materials and inoculation materials are mixed in the tank, the first time is turned over, recorded as the start time of the fermentation cycle, generally after 3 to 4 days of heating period (5 to 7 days in winter), the high temperature fermentation stage . Taking the temperature as the standard, when the temperature of the pile body exceeds 60-70℃, keep it for more than 24 hours, and the compost windrow turner can be used for turning the pile. The number of turning the pile varies with the season. The summer fermentation period is generally 15 days, and the winter fermentation period is 25 days.
E. If 10 days after entering the trough, it is found that the temperature in the fermentation tank has not exceeded 40°C, it can be judged as a dead tank and fermentation start-up failed. At this time, the moisture in the tank must be measured. If the moisture exceeds 60%, auxiliary materials and inoculation materials need to be added, and the organic fertilizer machine is mixed; if the moisture is less than 60%, consider whether the amount of inoculation materials is insufficient.