A AnoxKaldnes™ Z-MBBR Veolia Water Technologies AnoxKaldnes has launched a new generation of biofilm carriers for moving bed biofilm reactors: AnoxKaldnes Z-MBBR. The new carrier is the result of two decades of development work. Aerobic Wastewater Treatment B Biobed® EBS (EGSB) High-rate anaerobic wastewater treatment system with external biomass separation. Aerobic Wastewater Treatment