Water treatment device capable of selective recovery of specific magnetic filter layers

A water treatment device capable of selective recovery of a specific magnetic filter layer, comprising:

• a reaction tank providing a treatment space for raw water;
• first-stage magnetic filter layer to n-th-stage magnetic filter layer which are disposed to be spaced apart from each other along a vertical direction in an internal space of the reaction tank;
• first-stage magnetic field application device to n-th-stage magnetic field application device disposed corresponding to each stage of the magnetic filter layer and configured to apply a magnetic field to each stage of the magnetic filter layer;
• a magnetic filter medium recovery tank configured to store magnetic filter media discharged from the reaction tank;
• and
• a magnetic filter medium supply tank configured to supply magnetic filter media to a region of an uppermost magnetic filter layer,
• wherein a specific magnetic filter layer is configured to be moved to the magnetic filter medium recovery tank through selective magnetic field application to the first-stage magnetic filter layer to the n-th-stage magnetic filter layer.