Rainwater treatment system using specific gravity difference of filter media

摘要

According to an embodiment of the present invention, a filter body to filter water containing pollutants comprises: an accommodating space; an inlet enabling water to flow into the accommodating space from the outside; a case having an outlet enabling the water flowing into the accommodating space through the inlet to be discharged to the outside; and filter media placed in the accommodating space to filter the water flowing into the accommodating space. The filter media is configured to be arranged in the accommodating space.