Back Washing Floating Wetland and Vegetation settling System

摘要

PURPOSE: A back washing floating wetland and a vegetation settling system are provided to provide cost-effectiveness and easy operation and treatment by being equipped on a wetland, a lake and a constructed wetland after a small island and wet land are constructed so that broad sites are not needed. CONSTITUTION: A back washing floating wetland and a vegetation settling wetland comprises a backwashing stray swale(100) and a vegetation settling wetland(200). The backwashing stray swale purifies water by supplying purified water by the first pump(110) to a waterway made of several walls(300b) for separation and filtering elements and back washes the filtering elements. The vegetation settling wetland comprises an upper part(210) with a vegetation mat(211) and a hopper-typed lower part(250). After purified water flows from the back washing floating wetland, the vegetation settling wetland allows the flowed water to pass the upper part for purification once again. After the back washed water flows from the vegetation settling wetland, the vegetation settling wetland allows the flowed water to pass the lower part for sinking foreign particles.