Provided is a liquid treatment device having a simple configuration. The liquid treatment device comprises: a tank which stores a liquid to be treated; a flow path through which the liquid to be treated flowing out of the tank flows and through which the liquid to be treated is recirculated to the tank; a pump which is provided in the flow path and which causes the liquid to be treated to flow out from the tank into the flow path; and a fluid suction unit which is provided on the upstream side of the pump in the flow path and which mixes a mixture fluid, which is a fluid different from the liquid to be treated, with the liquid to be treated. The fluid suction unit has a nozzle, a diffuser, and a suction chamber, and a supply port communicating with the nozzle and a discharge port communicating with the diffuser are provided in the flow path, wherein, when the liquid to be treated passes through the nozzle, the suction chamber and the diffuser, the mixture fluid is sucked into the suction chamber from a suction port, which is an inlet to the suction chamber. The inner diameter of the nozzle is set such that the flow velocity of the liquid to be treated is 5 m/sec or more and 6 m/sec or less.
B01F 25/53 - Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle in which the mixture is discharged from and reintroduced into a receptacle through a recirculation tube, into which an additional component is introduced
B01F 23/45 - Mixing liquids with liquidsEmulsifying using flow mixing
B01F 23/232 - Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles
B01F 25/31 - Injector mixers in conduits or tubes through which the main component flows
B01F 25/422 - Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions by moving the components in a convoluted or labyrinthine path between stacked plates, e.g. grooved or perforated plates
Provided is a liquid treatment apparatus with a simple configuration. The present invention comprises: a tank which stores a liquid to be treated; a first flow path through which flows the liquid to be treated that has flowed out from the tank, and through which the liquid to be treated returns to the tank; a first pump provided to the first flow path; and a first vacuum generation unit provided on the upstream side of the first pump.
B01F 23/2326 - Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles adding the flowing main component by suction means, e.g. using an ejector
B01F 25/53 - Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle in which the mixture is discharged from and reintroduced into a receptacle through a recirculation tube, into which an additional component is introduced
C02F 1/20 - Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
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