How Much Organic Fertilizer can be Produced from One Ton of Pig Manure

How much organic fertilizer can be produced from one ton of pig manure?

In order to know exactly how much fertilizer can be produced from one ton of pig manure, we need to know several things at once.

First, determine the moisture content (i.e. water content) of the pig manure. The moisture content depends to a large extent on the collection method, such as water rinsed manure, foam manure, dry washed manure and biogas residue after solid-liquid separation.

Second, what is the raw material for production? Generally speaking, to reduce the water content of fresh pig manure, a large amount of auxiliary materials such as straw, cake meal and residue are also effective measures to increase the organic matter and nutrient elements of the fermented material.

Secondly, the type of pig manure fertilizer produced and processed will also directly affect the final water content. For example, the water content of organic fertilizer granules is required to be less than 30%, the water content of compound fertilizer granules is required to be less than 12%, and the water content of compound microbial fertilizer is required to be less than 20%. There are also post-processing treatments of the fertilizer, such as whether binders and bio-bacteria are added and whether they are dried, which will affect the weight of the final pig manure organic fertilizer.

Excluding other factors, one ton of fresh pig manure can be processed into about 0.5-0.7 of organic fertilizer. Therefore, the production and processing of organic fertilizer from pig manure, rice straw and other agricultural wastes remains promising.