APPARATUS FOR WATER COLLECTION AND DETENTION WITH WATER TREATMENT FUNCTION

摘要

PURPOSE: To provide an apparatus for water collection and detention with water treatment function, wherein the apparatus enables water such as rainwater to be permeated into the apparatus from the surface of the ground, and the permeated water is purified so that the purified water is detained in the apparatus. CONSTITUTION: The apparatus comprises a packing surface(101) which is formed of a permeable packing material, and into which water such as rainwater on the surface of the ground is permeated; a filter media layer(102) formed on a lower part of the packing surface to remove contaminants contained in water permeated through the packing surface; a screen layer(103) installed on a lower part of the filter media layer to hinder passage of suspended solid and trace of contaminants contained in water passing through the packing surface and the filter media layer; a detection basin(104) installed on a lower part of the screen layer to store water that passes through the packing surface, the filter media layer and the screen layer; and a permeation facility(105) connected to the detection basin to prevent overflow of water from the detection basin and permeate water into the ground.