Patent ID: 9451759
Filing Date: 2016-09-27
CPC Classification: A01K,C02F

Claim Text:
1. A liquid bubble separator of a circulating water system, a circulating water system overflowing aquaculture water in an aquaculture tank toward a nitrification tank with nitrosomonas to cause nitrification, and a membrane filtration unit separating solids in the aquaculture water, thereafter the aquaculture water being pumped back to the aquaculture tank so as to recycle the aquaculture water, the liquid bubble separator being fixed on one side of the membrane filtration unit and comprising: a cylindrical tank including a water chamber defined by an inner wall, an inlet pipe and an outlet pipe which are inserted into the water chamber, at least one air orifice, and a bubble discharging hole; a pump coupled with the inlet pipe to pump treated water into the inlet pipe of the cylindrical tank via the nitrification tank; a bubble collection tank mounted on one side of the cylindrical tank and including a collecting tube joined with the bubble discharging hole; at least one micro bubble generating unit disposed in the water chamber of the cylindrical tank, and each of the at least one micro bubble generating unit including a body, a first mixing room formed in the body, an inlet connecting with the inlet pipe and communicating with the first mixing room, at least one air tube coupling with the at least one air orifice and corresponding to the inlet, and a plurality of backflow apertures formed around a peripheral side of the body and communicating with the first mixing room, such that when liquids are pumped into the first mixing room via the inlet, air is guided from one of the at least one air tube and is mixed with the liquids in the first mixing room to generate mixed liquids with micro bubbles, and the mixed liquids overflow to the water chamber of the cylindrical tank from the plurality of backflow apertures so that mucus, baits, excrements, suspended substances in the mixed liquids gather on the micro bubbles and are pushed upwardly, and then they flow to the bubble collection tank through the collecting tube, the mixed liquids separate from the micro bubbles and flow downwardly into the aquaculture tank via the outlet pipe of the cylindrical tank.