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The PRISA process (Phosphorus Recovery by ISA) can be integrated into the sludge treatment of a municipal wastewater treatment plant (wwtp). Related to the phosphorus inflow load to the wwtp, the process enables a recovery up to 40%. The recovered phosphate can be used either in agriculture or can be sold to the phosphate industry. The process can provide a sustainable sludge management in the future.
MONTAG, D. GETHKE, K. PINNEKAMP, J. (n.y): A Feasible Approach of Integrating Phosphate Recovery as Struvite at Waste Water Treatment Plants. Aachen: RWTH Aachen University, Institute of Environmental Engineering URL [Accessed: 26.06.2012]