A AnoxKaldnesⓇ MBBR Moving bed biofilm reactor for cost-efficient removal of pollutants from municipal and industrial wastewater. High efficiency for BOD, ammonia and nitrogen removal. Aerobic Wastewater Treatment E eXeno™ eXeno™ is a moving bed biofilm reactor (MBBR) technology used for the biological treatment of micropollutants, such as pharmaceuticals. Aerobic Wastewater Treatment I Idrascreen™ High capacity compact screening units for wastewater pretreatment and solids separation. Screening and Separation