Friday 17 September 2021

Pig Manure into Granular Compost

Pig manure organic fertilizer granulator: whether you like pork or not, 700 million pigs are there. The problem is that the value of pig manure brought by these 700 million pigs exceeds 100 million.

Pig manure is very "fat". Today, no one will question the necessity of environmental protection in pig breeding. How to do it has become a problem that the industry really needs to think about. The same thing may look completely different from different angles. 

In some people's eyes, these hundreds of millions of tons of manure can be a source of pollution, but in some people's eyes, it can't be a source of wealth? Turn pig manure into organic fertilizer and garbage into resources. Endless troubles have suddenly become endless benefits. All problems have been solved at once?

Reality will never be as full as ideal. Whether it is a pig farm or an organic fertilizer plant, it seems that there is no real way to combine the two. The production of organic fertilizer is a completely unfamiliar technology for pig farms, which is difficult to accept huge investment. For organic fertilizer plants, the use of pig manure raw materials is also full of unknowns. The fertilizer industry even spoke frankly about the various residues of heavy metals and antibiotics.

Who can build a bridge between the two first? We habitually think of the government. The government has done a lot of work, from regulation to subsidies. But everyone knows that the market is the greatest force. We are glad to see that leading enterprises such as Wenshi, muyuan and Dongrui have made many successful attempts.

Only when everyone in the market starts to benefit from it can the 100 billion market in the pig manure organic fertilizer theory be really activated, and then the pig manure will naturally become a fertilizer difference.

Q: how does pig manure mature?

A: pig manure has fine texture, low cellulose content and high nutrients. It is a good organic fertilizer. However, due to its high water content, slow maturity and less fermentation heat release, it belongs to cold fertilizer.

Its fermentation is slower than sheep manure and horse manure. Fermentation requires a certain temperature and humidity. The fermentation temperature of pig manure should reach 60 ℃ - 70 ℃, and the water content should reach about 60%. (the judgment method of 60% water content is to knead pig dung into a ball by hand and loosen it when it is loose.) if the temperature is not enough, cover it with film or mix some horse dung well. 

When the water content is high, the feces can be opened to evaporate the water. When it is not enough, add water. In addition, adding some nitrogen fertilizer can speed up the fermentation.

The standard for good fermentation of pig manure is: the color is yellow green, there are white mycelium like substances, the smell is not strong, slightly alcoholic. The water content of pig manure is 81.5%, organic matter is 15.0%, nitrogen is 0.60%, phosphorus is 0.40%, potassium is 0.44%. High nutrient content, balanced, soft, large and long fertilizer effect, it is "warm fertilizer".

 Pig manure has fine texture and complex components, including protein, fat, organic acids, cellulose, hemicellulose, inorganic salts, etc. Pig manure contains more nitrogen and a smaller carbon nitrogen ratio (14:1). Generally, it is easy to be decomposed by microorganisms and release nutrients that can be absorbed and utilized by crops. After decomposition, it can be applied to cold soil, sandy soil and clay soil to improve the soil.


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