| 摘要 |
PURPOSE: An initial rainwater processing device is provided to remove various contaminants in rainwater by guiding the rainwater to downward with porous media, and to prevent contamination of ecosystem. CONSTITUTION: An initial rainwater processing device comprises the following: an inflow tank(10) collecting rain water transferred to an inflow pipe(11); a filtering tank(20) with a filtering layer part(21) filled with media and which is divided by a side wall(25) and a partition(15); and an outflow pipe(31) discharging processed water which is treated in the filtering tank. The media in the filtering layer part is porous artificial sand. The filtering layer part includes a support(211), one or more wire mesh(212), a thick sand layer(213), and porous media(214). |
