公开(公告)号：US20240190724A1

公开(公告)日：2024-06-13

申请号：US18550722

申请日：2021-11-25

申请人： BEIJING DRAINAGE GROUP CO., LTD

发明人： Kuixiao LI ,  Yulong SHI ,  Qi XU ,  Gang WANG ,  Jiawei WANG ,  Haipeng BAO ,  Guanglu LI ,  Fuliang MA

IPC分类号： C02F1/28 ,  C02F1/00 ,  C02F101/10

CPC分类号： C02F1/28 ,  C02F1/001 ,  C02F1/008 ,  C02F2101/105 ,  C02F2201/005 ,  C02F2209/03 ,  C02F2209/42 ,  C02F2303/16

摘要： A bidirectional flow pulse-based water body phosphorus removal apparatus and a method, and an organic nutrient soil. The water body phosphorus removal apparatus includes: a prefiltration unit, a bidirectional flow phosphorus removal filtration pool, a bidirectional water collection and distribution system, a filtration pool stratified gas pulse system, a water production tank and a control system. A filtration layer filled with a phosphorus removal filtration material is provided in the bidirectional flow phosphorus removal filtration pool. The control system is used for controlling the bidirectional water collection and distribution system to alternately perform upward water in-and-out flow and downward water in-and-out flow on the bidirectional flow phosphorus removal filtration pool, so as to control the bidirectional flow phosphorus removal filtration pool to switch between an upward flow filtration adsorption mode for phosphorus removal and a downward flow filtration adsorption mode for phosphorus removal.