| 摘要 |
PURPOSE: A nature-friendlily designed initial rainwater treatment system is provided to effectively remove various contaminants contained in rainwater by applying porous filter media. CONSTITUTION: A nature-friendlily designed initial rainwater treatment system comprises a rainwater treatment device(1), and a natural flowing water-type filtering device(4). The rainwater treatment device includes an inflow tank(10) collecting rainwater after removing foreign materials, a filtering tank(20) filtering firstly processed water using a porous medium, and a discharge tank(30) discharging secondly processed rainwater from the filtering tank to the exterior.
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