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A platform for research: civil engineering, architecture and urbanism
Synchronous nitrogen and phosphorus removal rainwater bioretention facility capable of coping with heavy rainfall
The invention discloses a synchronous nitrogen and phosphorus removal rainwater bioretention facility capable of coping with heavy rainfall, and relates to the technical field of sponge city construction, the rainwater bioretention facility comprises a pool body, an overflow layer, a covering layer, a filtering layer, an upper drainage layer, a charcoal layer, a submerging layer and a lower drainage layer are sequentially distributed in the pool body from top to bottom, and drainage pipes are arranged in the upper drainage layer and the lower drainage layer; a water outlet of the lower-layer drainage pipe is lifted to be flush with the top of a submerged layer, and the submerged layer comprises iron shavings and quartz sand materials; an overflow well is arranged in the tank body; water outlets of the upper-layer drainage pipe and the lower-layer drainage pipe are connected into the overflow well; a water level control valve is arranged in the pool body and used for controlling opening and closing of a water outlet of the upper-layer drainage pipe. According to the device, the water outlet path can be automatically adjusted according to the rainwater flow, the problem that under the heavy rainfall condition, dissolved oxygen in rainwater runoff breaks through a submerged layer, and the nitrogen and phosphorus removal performance of a facility is reduced is solved, the removal capacity of the facility to dissolved pollutants is improved, and the device has the longer service life.
本发明公开了一种能同时应对强降雨的同步脱氮除磷雨水生物滞留设施，涉及海绵城市建设技术领域，包括池体，池体内从上到下依次分布有溢流层、覆盖层、过滤层、上排水层、生物炭层、淹没层和下排水层，上排水层、下排水层中均设有排水管，下层排水管出水口抬升至与淹没层顶部平齐，淹没层包含铁刨花和石英砂材料；池体内设有溢流井；上层排水管和下层排水管的出水口均接入溢流井内；池体内设有水位控制阀件，用于控制上层排水管出水口的启闭。本发明能根据雨水流量自动调节出水途径，克服了强降雨条件下雨水径流中溶解氧突破淹没层降低设施脱氮除磷性能的问题，提升了设施对溶解态污染物的去除能力，且具有更长的使用寿命。
Synchronous nitrogen and phosphorus removal rainwater bioretention facility capable of coping with heavy rainfall
The invention discloses a synchronous nitrogen and phosphorus removal rainwater bioretention facility capable of coping with heavy rainfall, and relates to the technical field of sponge city construction, the rainwater bioretention facility comprises a pool body, an overflow layer, a covering layer, a filtering layer, an upper drainage layer, a charcoal layer, a submerging layer and a lower drainage layer are sequentially distributed in the pool body from top to bottom, and drainage pipes are arranged in the upper drainage layer and the lower drainage layer; a water outlet of the lower-layer drainage pipe is lifted to be flush with the top of a submerged layer, and the submerged layer comprises iron shavings and quartz sand materials; an overflow well is arranged in the tank body; water outlets of the upper-layer drainage pipe and the lower-layer drainage pipe are connected into the overflow well; a water level control valve is arranged in the pool body and used for controlling opening and closing of a water outlet of the upper-layer drainage pipe. According to the device, the water outlet path can be automatically adjusted according to the rainwater flow, the problem that under the heavy rainfall condition, dissolved oxygen in rainwater runoff breaks through a submerged layer, and the nitrogen and phosphorus removal performance of a facility is reduced is solved, the removal capacity of the facility to dissolved pollutants is improved, and the device has the longer service life.
本发明公开了一种能同时应对强降雨的同步脱氮除磷雨水生物滞留设施，涉及海绵城市建设技术领域，包括池体，池体内从上到下依次分布有溢流层、覆盖层、过滤层、上排水层、生物炭层、淹没层和下排水层，上排水层、下排水层中均设有排水管，下层排水管出水口抬升至与淹没层顶部平齐，淹没层包含铁刨花和石英砂材料；池体内设有溢流井；上层排水管和下层排水管的出水口均接入溢流井内；池体内设有水位控制阀件，用于控制上层排水管出水口的启闭。本发明能根据雨水流量自动调节出水途径，克服了强降雨条件下雨水径流中溶解氧突破淹没层降低设施脱氮除磷性能的问题，提升了设施对溶解态污染物的去除能力，且具有更长的使用寿命。
Synchronous nitrogen and phosphorus removal rainwater bioretention facility capable of coping with heavy rainfall
一种能同时应对强降雨的同步脱氮除磷雨水生物滞留设施
CHAI HONGXIANG (author) / LI MENGDI (author) / MA HAIYUAN (author) / DU MENGCHEN (author)
2024-09-10
Patent
Electronic Resource
Chinese
Device for connecting roof rainwater and bioretention facility
| European Patent Office | 2023