Methods of Composting Animal Manure

Pretreatment

Remove mud, metal, battery and other non-fermented foreign matters from plant residues, then crush plant residues, and adjust moisture and C/N value.

Main Fermentation

It can be carried out in the open air or in the compost equipment, and the oxygen is supplied to the accumulation layer or fermentation plant by turning over the heap or forced ventilation.

Aftertreatment

After two times of fermentation, the materials have to gone through a sorting process to remove plastic, glass, ceramics, metal, small stones and other sundries, and finally break again as needed.

Deodorization

The main methods are chemical deodorants, activated carbon, zeolite, special soil and so on as absorbent filtration.