The invention discloses a multi-layer back flush anti-blocking artificial
wetland. The multi-layer back flush anti-blocking artificial
wetland comprises an outer pond, an intercepting net, a pluralityof sub
wetland systems, cutoff walls, secondary intercepting nets, a plurality of mud discharging ports, a plurality of
filtration layers, bearing
layers, pelelith
layers, fine sand layers, light filler layers, organic layers, planting plates, aquatic plants,
water collection grooves, a plurality of layers of back flush pipes,
branch pipes, a total
pipe, two sets of water outlets, conduits, clearwater outlets, an external
air pump and a pressure water pump; the multi-layer back flush anti-blocking artificial wetland is simple in structure, the operation is convenient, flushing can be conducted on different layers according to the blockage conditions of the wetland, and the water outlets of the multi-layer back flush anti-blocking artificial wetland are formed to be of inclined structures, so that sprayed water forms a vortex shape; compared with a direct flow flushing mode, by adopting the mode, pollutants causing blockage on the
filtration layers can be effectively removed, and thequick and efficient
water saving back flush effect is achieved.