... well.Fine air bubbles ≤ 30um.2. The complicated system which composed of recycling pump, air compressor, dissolved air vessel, ejector all ... realized. Simple operation, easy maintenance,low noise.DAF system structure 1. DAF system is composed of water inflow, flocculation, separation, ... reacted through folded plate, the flow speed is very high, if the reacted raw water directly contact dissolved air ...