Recovered Phosphorus From Animal Manure and Its Use As Fertilizer.

Repeated land application of large amounts of manure from confined livestock facilities is an environmental concern frequently associated to excess phosphorus (P) in soils and a likely source for pollution of water resources. Animal waste treatments that include recovery of P from manure are a management option that can resolve problems of excess application of P manure to land. Yet, the aspect of P recovery and reuse is important for the global cycling of this nutrient because unlike nitrogen, mineral P world reserves are limited. This presentation will report the results on new treatment processes to extract and recover P from manure and poultry litter and its potential use as an effective plant fertilizer source.