| abstract |
The present invention provides a fine particle separation device comprising: a bioreactor in which sludge containing granular microorganisms is stored; a first flow path through which the sludge is discharged to the outside of the bioreactor; a first filter part having, mounted therein, a first mesh part for separating, according to size, the granular microorganisms contained in the sludge discharged through the first flow path; a second flow path into which effluent water that has passed through the first filter part flows; a third flow path connected to the second flow path and discharging the effluent water to the outside; a fourth flow path, which is connected at one side of the second flow path and is mounted on a surface, of the first filter part, connected with a surface on which the second flow path is mounted, such that the effluent water is circulated to the bioreactor; a fifth flow path allowing the effluent water discharged through the fourth flow path to pass through the first filter part and be moved to the bioreactor; and a first pump for generating a flow in the effluent water, wherein the first mesh part is rotatably mounted in the first filter part. |