A lower biological reactor volume but the support provides a high specific surface.

Processes with a high flexibility since according to the percentage filling of the plastic support used in the reactor (over 70% not recommended) the surface area is modified and as a consequence the efficiency of the process.

It does not require recirculation of the biomass to the reactor. This jeans that the biomass does not depend on the final separation of the sludge and as a consequence the usual problems found in conventional active sludge processes a result of sludge sedimenting (filamentous bulking etc...).

Simple operation and control for this type of processes. Blockage problems are avoided and as a consequence continuous periods of cleaning. There is no need to control the sludge removal and purging since the system maintains the biomass in the reactor until it comes off the support.

It allows the generation of a characteristic biomass for any type of reactor (aerobic, anoxic or anaerobic) producing a biofilm with a very high activity. Higher levels of nitrification and denitrification to those obtained in conventional processes.