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How to deal with large water content of pig manure in summer?

Update time : 2021-08-09 Publisher:Tongda

What steps are needed for pig manure fermentation to produce organic fertilizer? How to make organic fertilizer from pig manure? When pig manure is used to process organic fertilizer, water is an important parameter for organic fertilizer fermentation. When the water content of pig manure is too large and the fermentation time is long, and the water content is too low, the temperature of pig manure can not reach the fermentation temperature. According to the mixed situation, add water or materials appropriately to control the water content at 40% - 45%, i.e. hold the pig manure without open water seepage.


So how to adjust the water content during pig manure fermentation? The water can be adjusted to about 60% - 70% suitable for fermentation by solid-liquid separator or adding auxiliary materials.

animal manure solid liquid separator machine for fertilizer making.jpg

Generally, the moisture content of composting materials (urban domestic waste and agricultural waste) can not reach the required moisture content value for composting. During the implementation of composting process, water like, sludge, wet pig manure and other livestock and poultry manure are generally used to adjust the moisture content.


If the moisture content of composting materials is too high, crushed crop straw, garbage, sawdust and edible fungus waste bran can be added to adjust the moisture content.


Microbial life activities need to constantly absorb water from the environment to maintain normal metabolism, and microorganisms can only absorb soluble nutrients, and the compost material after water absorption and softening is easy to be decomposed, so the appropriate moisture content is a necessary condition for maintaining the best microbial activity and the smooth progress of compost fermentation.


When the moisture content is higher than 80%, water molecules fill the interior of the particles and overflow to the particle gap, reduce the pores of the reactor and increase the gas mass transfer resistance, resulting in local anaerobic of the reactor, inhibiting the activities of aerobic microorganisms, which is not conducive to the high-temperature aerobic fermentation of materials.


However, the water content shall not be less than 40%. Too low will increase the porosity of the reactor, increase the loss of water dispersion, cause water shortage in the reactor, be unfavorable to the activities of microorganisms and affect the fermentation.


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