| 摘要 |
The present invention relates to an initial rainwater treatment device for a bridge. The present invention relates to a device installed in a bridge for treating contaminated water containing contaminants, characterized by comprising a treatment chamber in which contaminated water is inputted; a first filter unit provided on a top of the treatment chamber and having a plurality of filter holes to filter contaminants contained in the contaminated water; a guide unit provided under the first filter unit and having an inclined surface portion inclined to a central portion of the treatment chamber toward the underside while an upper end of the guide unit is connected to an inner circumference of the treatment chamber, and a guide pipe extended from a center of the inclined surface portion to the underside; a second filter unit located under the guide pipe and configured to filter contaminants contained in the contaminated water passing through the guide pipe; a third filter unit configured to filter contaminants contained in the contaminated water present in a space between the guide pipe and the treatment chamber, one end of the third filter unit being connected to an outer circumference of the guide pipe and the other end being connected to the inner circumference of the treatment chamber; a drain port provided in a bottom of the third filter unit; a first overflow hole provided in a top of the first filter unit while passing through an outer circumference of the treatment chamber; a second overflow hole provided under an upper end of the inclined surface portion while passing through the outer circumference of the treatment chamber; and an overflow pipe connected to the drain port, through which the contaminated water passing through the second overflow hole flows. |
