| 摘要 |
[Problem] To provide a deoxidation device (4) with improved efficiency in absorbing expelled gas and dissolved oxygen in treated water. [Solution] A deoxidation device (4) in which by bringing the expelled gas into contact with the treated water, causes dissolved oxygen in treated water to be absorbed by expelled gas and lowers the dissolved oxygen concentration of the treated water. The deoxidation device comprises the following: a gas-liquid contact tower (42) that has the shape of a container open at the lower end, at least the lower end of which is submerged below the surface of the treated water that is to be treated, forming an internal sealed space (421); an expelled gas supply unit (43) that supplies expelled gas to the sealed space (421), filling the sealed space (421) with expelled gas; and a treated water dispersion unit (41) that disperses the supplied treated water within the sealed space (421) in the form of a mist through a dispersion nozzle unit (412). |
