KEEPING TREATMENT SYSTEM FOR PRIMARY STAGE RAINWATER USING WATER-STORAGE TANK

摘要

PURPOSE: An initial rainwater storage and treatment system using a storage tank is provided to prevent a river from becoming contaminated by discharging initial rainwater through long-time. CONSTITUTION: An initial rainwater storage and treatment system using a storage tank comprises two opening and closing plates(10,20), a storage tank(30), and a manual water gate(40). The opening and closing plates are installed in a sewer(80) meeting a small river(60) and collect sewage and initial rainwater. The storage tank is connected to the opening and closing plates and is buried in the riverside(72) of a main river(70) to temporarily store the collected initial rainwater. The manual water gate is installed in the storage tank to selectively discharge the temporarily stored initial rainwater.