| 摘要 |
An early rainfall purifying equipment is provided to purify early rainfall containing contaminants economically and efficiently, effectively reduce an organic material in which the early rainfall is weighted on a public water area, secure stable treatment efficiency of early rainfall through effective pretreatment of particulate matters, and effectively control heavy metals and contaminants such as total nitrogen and total phosphorous except organic materials contained in early rainfall. An early rainfall purifying equipment comprises: a purification equipment body(10) which has a filter medium layer(11) formed in an upper part thereof, and which is formed as a cylindrical body; an early rainfall classification pipe installed on an upper portion of the purification equipment body; an oval inflow pipe(13) connected to the early rainfall classification pipe; a settling tank(14) vertically installed within the purification equipment body; a swirling flow induction wall(15) formed in such an inclined plane shape that width of the swirling flow induction wall is getting narrowed as it goes from an upper side to a lower side of the swirling flow induction wall; a tractive flow preventing cap(16) extending from the swirling flow induction wall; a channeling preventing weir(17) for preventing channeling from being generated when early rainfall passes through the filter medium layer within the purification equipment body; and an outlet(18) installed on an one side surface of the channeling preventing weir. |
