Extraction and Recovery of Phosphorus from Pig Manure Using the Quick Wash Process

*Why Look at Phosphorus Recovery from Pig Manure?

Land disposal of manure is a challenging environmental problem in areas with intense confined pig production. When manure is land applied at optimal nitrogen rates for crop growth, phosphorus can accumulate in excess of soil assimilative capacity because of the disproportion of nitrogen and phosphorus contents in animal manures relative to plant biomass.…