INITIAL RAIN PURIFICATION DEVICE

摘要

An initial rain purification device which can remove adulterations contained in rainwater without using power, and can solve an environmental problem by utilizing shells as a filter media layer in order to remove adulterations contained in rainwater is provided. An initial rain purification device comprises: a housing(100) installed underground; a settling tank(130) having a space formed at one side within the housing to store rainwater provisionally; a rotating pipe(120) which is distanced from the bottom of the settling tank, and which has an inflow pipe(110) penetrated into an upper portion thereof such that rainwater flows into the rotating pipe through the inflow pipe, and a degassing unit(122) integrally connected to an end of the inflow pipe; a filter media layer(150) which is installed at the other side within the housing such that the filter media layer comes in contact with the settling tank, and in which filter media is embedded; a distribution pipe for flowing supernatant of the settling tank into an upper side of the filter media layer; and a discharge pipe(160) installed on a lower portion of the filter media layer to discharge rainwater filtered by the filter media layer.