In order for phosphorus recovery to be implemented on schedule, sewage sludge producers must make technical and organizational decisions at an early stage. Economic considerations are also closely linked to this, as there are currently no reliable figures available.

The TransPhoR accompanying project is therefore now providing a guide and an accompanying Excel tool that can be used to evaluate different P recycling concepts economically according to uniform criteria and compare them approximately. The guide describes a standardized procedure that transparently records investment costs and running costs (e.g., energy, personnel, operating resources) and compares them with the monetary benefits from recyclates and possible by-products. The Excel tool helps to document assumptions in a comprehensible manner and to perform sensitivity analyses to check how strongly results depend on key parameters.

The guide can be downloaded at the following link:
https://www.bmbf-rephor.de/wp-content/uploads/2025-05_BMBF-RePhoR_Leitfaden-Wirtschaftlichkeitsbetrachtung.pdf

The Excel tool developed is also available for download free of charge on the RePhoR project website:
https://www.bmbf-rephor.de/wp-content/uploads/Exceltool_Wirtschaftlichkeit_TransPhoR.xlsx

Both are currently only available in German.