A Amdro™ Amdro™ is a patented technology for desalination of acidic wastewater with high concentrations of metals and calcium salts. Membrane Filtration - reverse osmosis I Idraflot™ Highly compact and innovative modular flotation units to achieve the highest removal efficiency on suspended solids, oils and grease, and insoluble chemical oxygen demand (COD). Sedimentation - Clarification - Flotation