Purines: ¿Residuo o recurso?

Abstract

Public opinion is very conscious of pollution caused by slurry, the eutrophication of water and unpleasant smells being the most notable impact. A priori, there is a negative stance against slurry whilst manure is considered very positively, as it is identified as an organic, ecological fertiliser. Both products are organic, the only difference between slurry and manure is that the first is diluted with rainwater and water used to clean the farms, whilst the latter is used as a solid given the materials added to the animal litters (straw, brush, sawdust, etc.).