A Amdro™ Amdro™ is a patented technology for desalination of acidic wastewater with high concentrations of metals and calcium salts. Membrane Filtration - reverse osmosis 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