Rainwater bioretention pond for phosphorus removal beside expressway

A technology for biological retention ponds and highways, applied in the field of drainage facilities, can solve the problems of water environment deterioration, inability to effectively remove phosphorus from rainwater, phosphorus removal, etc., and achieve the effects of preventing eutrophication, reducing erosion, and reducing rainwater flow.

Inactive Publication Date: 2014-04-30
BEIJING UNIVERSITY OF CIVIL ENGINEERING AND ARCHITECTURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the bioretention tank cannot effectively remove phosphorus in the rainwater, so the concentration of phosphorus in the effluent of the bioretention tank is still relatively high. When the rainwater runoff from the expressway is

Method used

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  • Rainwater bioretention pond for phosphorus removal beside expressway
  • Rainwater bioretention pond for phosphorus removal beside expressway
  • Rainwater bioretention pond for phosphorus removal beside expressway

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Embodiment Construction

[0018] Please refer to the attached figure 1 to attach Figure 4 Shown, the present invention is a kind of rainwater bioretention pond that is used for dephosphorization beside the expressway, and it mainly consists of low road teeth 1, water passage 2, bioretention pond 3, permeable concrete box body 4, phosphorus removal box 5 and Several parts such as drainage pipe 6 are formed.

[0019] Wherein, the low curb 1 communicates with the expressway 8, which is used to collect rainwater on the expressway. The upper surface of the lower curb 1 is flush with the road surface of the expressway 8 .

[0020] One end of the water passage 2 is connected to the lower curb 1, and the other end is connected to the bioretention tank 3, so that the rainwater on the expressway is discharged into the bioretention tank 3. The water channel 2 has a U-shaped structure, which is composed of an upper permeable pebble layer 21 and a lower geotextile layer 22 .

[0021] The size of the bioretenti...

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Abstract

The invention relates to a rainwater bioretention pond for phosphorus removal beside an expressway. The rainwater bioretention pond comprises a low kerb, a water-passing channel, a bioretention pond body, a pervious concrete box body, a phosphorus removal box and a drainage pipe. One end of the water-passing channel is connected with the low kerb, and the other end of the water-passing channel is connected with the bioretention pond body. The pervious concrete box body is arranged in the bioretention pond body, and the bioretention pond body is divided into a left portion and a right portion. The phosphorus removal box is arranged in the pervious concrete box body. The drainage pipe is arranged on the bottom of the bioretention pond body. The rainwater bioretention pond for phosphorus removal beside the expressway removes phosphorus carried in the runoff to some extent in a reinforced mode, and the ability to remove the phosphorus is higher than 80 percent. Meanwhile, the rainwater bioretention pond for phosphorus removal stores, permeates and purifies the rainwater runoff, reduces the downstream rainwater flow and the rainstorm peak flow, reduces direct scouring on a watercourse and the like from rainwater, reduces the erosion phenomenon of the watercourse, and reduces pollution to the water environment from the road.

Description

【Technical field】 [0001] The present invention relates to a rainwater retention pond, in particular to a rainwater biological retention pond for phosphorus removal beside the expressway, which is mainly used beside the expressway, and can also be applied beside other roads if the terrain permits, and belongs to the technology of drainage facilities field. 【Background technique】 [0002] During the rainfall process, rainwater will form runoff along the road surface, and the runoff rainwater is mixed with a large number of surface pollutants, such as organic matter, heavy metals, nitrogen and phosphorus, and so on. If the runoff flows directly into the drainage system at this time, it will increase the load on the drainage system; at the same time, if the runoff flows directly into the river, it will cause river water pollution. When the rainfall is large, the rainwater directly scours the river course, which will also cause the erosion of the river course. How to remove pol...

Claims

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Application Information

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IPC IPC(8): E03F5/10E01C11/22C02F1/58C02F1/28
CPCY02A10/30
Inventor 王俊岭张玉玉张雅君冯萃敏许萍赵犁
Owner BEIJING UNIVERSITY OF CIVIL ENGINEERING AND ARCHITECTURE
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