With poultry manure we define the set of waste resulting from the breeding of poultry. Since this kind of manure is produced in large quantities, its disposal and / or use represents a topic of great importance for the whole human being: its correct disposal and / or use represents a social commitment.
The poultry manure is made up of poultry farm waste, therefore from poultries manure itself, from their litter, from feathers but also from animal waste, from carcasses of dead birds, and broken eggs.
Due to the high nutritional value of this compound, droppings are traditionally used in agriculture as organic fertilizers as they allow important nutrients to be returned to the fields: on average, 3% nitrogen, 2% phosphoric anhydride and 1.5% potassium are present in the droppings.
Unfortunately, however, the overuse can be extremely dangerous for human health as it often contain a very high percentage of nitrogen in organic form (60-80%) which, once spread as fertilizer, almost entirely turns into ammonia and salts ammoniacal.
Ammonia is dispersed into the atmosphere, however, its contribuits to the formation of fine dust while ammonia salts are transformed into nitrates, highly soluble in water, and therefore capable of contaminating surface waterways and, in the worst case scenario, of contaminating aquifer water.
Its excessive use can have also phytotoxic effects, as it can cause excessive soil salinity.
Therefore, it is obvious and more than evident that the current demographic level and the modern typology of intensive poultry farming contribute greatly to the production of much more droppings than any farm can accommodate.
This surplus should preferably be treated “fresh from production” to avoid further problems related to large storage such as: proliferation of insects, unpleasant odors, spread of pathogenic germs, etc.
