| 摘要 |
PURPOSE: A non-point contaminant purifying device for initial rainwater runoff is provided to easily maintain and repair the device by easily changing a filter member accommodated in a filter unit. CONSTITUTION: A non-point contaminant purifying device for initial rainwater runoff comprises grating (100), a filter case (300), a filter unit, and a drain path (500). The filter unit is installed in the form of an open-top hollow mesh within the filter case. A first filter unit (410), a second filter unit (420), and a third filter unit (430) are successively laminated. The second filter unit and the third filter unit are laminated and connected in order to be rotated based on the first filter unit. |
