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Storm runoff purification device of urban road
The invention discloses a storm runoff purification device of an urban road. The device is composed of three parts including a vertical flow well (2), an upper flow well (11) and a biological purification device (23), wherein the vertical flow well (2) is composed of a rainwater perforated strainer (1), an energy dissipation screen (3) and a sand hopper (4); the upper flow well (11) is composed of four parts including a clean water area (8), a filter layer (7), a water distribution area (6) and a two-phase separating area (5); the biological purification device (23) is composed of planted plants (14), a plant growth dielectric layer (15), a sand filter layer I (16), a sand filter layer II (17), a filter layer I (21), a filter layer II (18), a drainage layer (20), a drainage pipe (19) and a baffle (22), and the planted plants (14) are vetiver grasses. The storm runoff purification device mainly has the following advantages that the sand and nitrogen purification efficiency is high; the application is flexible, and the present situation of a pipe network is not influenced; while trapped sand is removed, back flush can be synchronously and automatically performed by the filter layer (7), so as to prevent the filter layer from being blocked.
Storm runoff purification device of urban road
The invention discloses a storm runoff purification device of an urban road. The device is composed of three parts including a vertical flow well (2), an upper flow well (11) and a biological purification device (23), wherein the vertical flow well (2) is composed of a rainwater perforated strainer (1), an energy dissipation screen (3) and a sand hopper (4); the upper flow well (11) is composed of four parts including a clean water area (8), a filter layer (7), a water distribution area (6) and a two-phase separating area (5); the biological purification device (23) is composed of planted plants (14), a plant growth dielectric layer (15), a sand filter layer I (16), a sand filter layer II (17), a filter layer I (21), a filter layer II (18), a drainage layer (20), a drainage pipe (19) and a baffle (22), and the planted plants (14) are vetiver grasses. The storm runoff purification device mainly has the following advantages that the sand and nitrogen purification efficiency is high; the application is flexible, and the present situation of a pipe network is not influenced; while trapped sand is removed, back flush can be synchronously and automatically performed by the filter layer (7), so as to prevent the filter layer from being blocked.
Storm runoff purification device of urban road
WANG SHUMIN (author) / XIE YUNCHENG (author) / YU HUI (author)
2015-07-15
Patent
Electronic Resource
English
IPC:
E03F
SEWERS
,
Abwasserkanäle
| ASCE | 2021
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