FILTRATION DEVICE AND FILTRATION METHOD USING SAME

摘要

A filtration device includes a tubular body having an inlet and an outlet for a solution to be treated, and a plurality of hollow fiber membranes aligned in the tubular body. By creating a difference in pressure between the outside and inside of the hollow fiber membranes, water in the solution to be treated is passed from the outside to the inside. The filtration device further includes a gas supply unit configured to supply a bubble from below the plurality of hollow fiber membranes. The tubular body has a gas discharge port above the inlet and the outlet. The gas discharge port is provided for discharging the bubble supplied from the gas supply unit to the outside.

主权项

1. A filtration device comprising a tubular body having an inlet and an outlet for a solution to be treated, and a plurality of hollow fiber membranes aligned in the tubular body, wherein by creating a difference in pressure between the outside and inside of the hollow fiber membranes, water in the solution to be treated is passed from the outside to the inside;
the filtration device further includes a gas supply unit configured to supply a bubble from below the plurality of hollow fiber membranes; and the tubular body has a gas discharge port above the inlet and the outlet, the gas discharge port being provided for discharging the bubble supplied from the gas supply unit to the outside.