Probing young drinking water biofilms with hard and soft particles.

The aim of our study was to investigate, through the use of soft (Escherichia coli) and hard (polystyrene microspheres) particles, the distribution and persistence of allochthonous particles inoculated in drinking water flow chambers. Biofilms were allowed to grow for 7-10 months in tap water from Nancy's drinking water network and were composed of bacterial aggregates and filamentous fungi. Both model particles adhered almost exclusively on the biofilms (i.

Effect of wall shear rate on biofilm deposition and grazing in drinking water flow chambers.

The effect of four-wall shear rates (34.9, 74.8, 142.