Periphytic Algae Filter Membrane System For Water Body Purification

The invention provides a periphytic algae filter membrane system for water body purification. The periphytic algae filter membrane system includes a percolation weir arranged at the bottom of a water body; a first filter membrane and a second filter membrane arranged at two sides of the percolation weir. A left end and a right end of the first filter membrane and the second filter membrane are respectively connected to a corresponding fixing pile through a connecting piece, a floating body is arranged at a top of the first filter membrane and the second filter membrane, and a weight balancing block is arranged at the bottom of the first filter membrane and the second filter membrane; and a first trash holding net and a second trash holding net arranged at an outer side of the first filter membrane and the second filter membrane. The surfaces of the percolation weir, the first filter membrane and the second filter membrane are all inoculated with periphytic algae. The periphytic algae filter membrane system promotes the growth and reproduction of periphytic algae, improves the degradation of water pollutants and nitrogen and phosphorus in the water boby, and prevents the periphytic algae from escaping and flowing into the external water body to cause excessive proliferation, to realize the effective bioremediation of eutrophic water body. FIGURE ACCOMPANYING THE