The PHOSTRIP process benefits from the biochemical potential of microorganisms, which are able to concentrate phosphorus in their biomass. In the sidestream a part of the return sludge will pass anaerobic milieu conditions. The biomass accumulates easily degradable organic matters and discharge phosphate into the water. Due to this reaction a side stream with high phosphate concentration can be conditioned with several process steps to separate phosphorus in an economical way.
MUTAG (n.y): Multi Phostrip. Biological Phosphorus Removal From Municipal Waste-Water In The Side Stream Process. Aue/Sachsen : Multi Umwelttechnologie AG. [Accessed: 26.06.2012] PDF