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Seven projects are promoted in the funding programme "Recycling management of plant nutrients, especially phosphorus" by the German Federal Ministry of Education and Research (BMBF) and are coordinated by the Project Management Agency Forschungszentrum Karlsruhe, Water Technology and Waste Management Division (PTKA-WTE). The seven research and development projects are composed of two accompanying and five technical projects.

Both accompanying projects work in close collaboration to permit a comparability of the achieved results.

Accompanying projects:

Accompanying project PhoBe: Recycling of Phosphorus - Ecological and Economic Evaluation of Different Processes and Development of a Strategical Recycling Concept for Germany

„Phosphorus recycling - Characterisation of the effect of recycled phosphate fertilisers by field and pot experiments" of the Department of Agricultural Crop Sciences, Georg-August-University Göttingen

Technical projects:

Cooperative project PASCH: Recovery of plant nutrients, especially phosphorus from ash of sewage sludge as well as meat- and bone meal

Cooperative project PHOXNAN: Optimised phosphorus recycling from waste water sludges by the combination of low pressure wet oxidation and nanofiltration

Cooperative project  PROPHOS: Phosphorus recovery from wastewater, sewage sludge and sewage sludge ashes

Cooperative project RECYPHOS: Phosphorus recycling - Sustainability contribution at the decentral wastewater treatment

Project PHOSIEDI: Phosphorus Recovery using Ion-Exchange and Electrodialysis"