A AnoxKaldnes BAS™ The BAS™ biological wastewater treatment process is the optimally designed combination of MBBR and activated sludge processes and is a leading edge process used for treatment of industrial and municipal wastewater. Aerobic Wastewater Treatment 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 AnoxKaldnes™ LagoonGuard™ Aerated lagoons are used extensively for the treatment of both municipal and industrial wastewater. Aerobic Wastewater Treatment AnoxKaldnes™ MBBR Combining microbiological expertise with decades of experience in wastewater processes enables us to improve on existing systems and to develop new processes. Aerobic Wastewater Treatment