To provide a filtration apparatus and a filtering method capable of regenerating the filtration function of a granular filter medium.
This filtration apparatus is provided with: a vessel having an introduction port for introducing the fluid to be filtered into the vessel and a discharge port for discharging the filtered fluid to the outside; a filtration part which is held at a fixed position in the middle of a route from the introduction port of the vessel to the discharge port and is composed of two or more filter medium housing spaces each provided with a predetermined amount of the granular filter medium for filtering the fluid to be filtered; and an agitating means for agitating the granular filter media used for filtering the fluid to be filtered for a predetermined period of time so that the object which is to be filtered and is stuck to the surface of the granular filter medium is removed by relatively moving the granular filter media to restore the filtration function of the granular filter medium.
SHIMIZU KUSUO
YOMO TERUTOSHI
YUTAKA KOKI KK
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