PHOSPHORUS RECOVERY ? AN OVERVIEW OF POTENTIALS AND POSSIBILITIES

The reserves and the use of phosphorus in the world. Possibilities to recover phosphorus from wastewater to recirculate to productive soils. Potential for recovery and reuse for nutrients in urine, faeces and grey water in 6 systems investigated (sludge, source separation of urine, separation of toilet wastes, extraction of P from sludge, extraction from incinerated sludge ashes, extraction from a bio-P treatment process). Estimated investments, annual costs for each scenario, technology, and discussion.