This technology utilizes a water intake platform with pumping stations to lift algae-rich water from the lake bay into a regulating and sedimentation pond. The water then flows into an aeration contact oxidation zone, which serves as the primary biological treatment area for organic matter, nitrogen, and phosphorus removal. The water surface is covered with ecological floating beds planted with aquatic vegetation, achieving dual objectives: pollutant absorption through root systems and algae suppression via light shading. Subsequently, the water passes through multi-level gravel bed contact oxidation ponds, where cascaded filtration and gravel bed contact oxidation work synergistically to enhance the removal of suspended solids and algal cell particles. A surface flow constructed wetland is installed at the final stage of the process to further polish the treated water.

Technology provider:Shanghai Jiao Tong University Yunnan (Dali) Research Institute