SEPARATION DEVICE AND SEPARATION METHOD

摘要

[Problem] To reduce the danger of explosion during separation of a substance to be removed from water that is being treated. [Solution] The separation device is provided with: an acquiring unit (10) for acquiring the water to be treated that contains the substance to be removed; a separation unit (20) for separating the substance to be removed from the water that is being treated; an oxygen-removing unit (30) for removing oxygen inside the separation unit (20); a removed substance-discharging unit (40) for discharging the removed substance that has been separated from the treated water; and a treated water-discharging unit (50) for discharging the treated water remaining after separation of the removed substance from the treated water. The separation unit (20) comprises, for example, a storage unit (60) for storing a flocculant for aggregating the substance to be removed that is contained in the water being treated, a flocculation unit (70) for generating aggregates in which the substance to be removed is aggregated by stirring the flocculant and the water that is being treated, and a collection unit (80) for collecting the aggregates and delivering same to the removed substance-discharging unit (40).