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Riverway restoration system adopting intermittent aeration and PRB (permeable reactive barrier)

A technology for river restoration and aeration, applied in water/sewage multi-stage treatment, water resources protection, water/sludge/sewage treatment, etc., to achieve the effect of not being easily blocked, improving the quality of river water, and reducing costs

Inactive Publication Date: 2013-04-17
CHINA UNIV OF GEOSCIENCES (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the situation that surface water bodies are generally polluted by nitrogen and phosphorus, in order to protect the safety of drinking water sources, this invention proposes a repair technology for slightly polluted surface water, an intermittent aeration PRB river channel repair system

Method used

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  • Riverway restoration system adopting intermittent aeration and PRB (permeable reactive barrier)
  • Riverway restoration system adopting intermittent aeration and PRB (permeable reactive barrier)
  • Riverway restoration system adopting intermittent aeration and PRB (permeable reactive barrier)

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Embodiment 1

[0023] The water quality of a slightly polluted river in Haidian District, Beijing is shown in the table below. This river section cannot meet the water quality requirements of Class V in the "Surface Water Environmental Quality" GB3838-2002. After being treated by the intermittent aeration PRB system, the water quality can reach Class IV standard for surface water.

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Abstract

The invention discloses a riverway restoration system adopting intermittent aeration and a PRB (permeable reactive barrier). The technology is as follows: water in small and medium-sized riverways is diverted on the banks, the diverted river water is treated via a water treatment unit, and the treated water is returned back to the riverways. The restoration system comprises a water diversion area, a precipitation area, an aerobiotic / anaerobic area, a filter area, a water outlet area, a water drainage area and other parts. The system adopts intermittent aeration and combines the characteristics of a PRB process, and the different reaction conditions of anaerobic / anoxic condition, aerobiotic condition and filter condition are realized in the system. The system expands the application range of the PRB, and enables the PRB to be suitable for water quality purification for riverways and be good in restoration effect on micro-polluted medium-sized riverways.

Description

technical field [0001] The invention relates to a novel river restoration technology combining an intermittent aeration mode and a biological osmotic reaction wall, belongs to the surface water restoration technology in the technical field of water pollution control, and is suitable for restoration of small and medium-sized rivers with slight pollution. Background technique [0002] With the growth of population, industrialization, urbanization and the development of agricultural irrigation, the demand for water is increasing. Due to the uneven distribution of water resources in my country, and the prominent problems of water pollution and water ecosystem imbalance in recent years, the current contradiction between supply and demand of water resources has been exacerbated, and my country is facing a serious water resource crisis. A large amount of sewage is directly discharged into the water body without treatment. Even if it is discharged after treatment, due to the differe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCY02A20/402
Inventor 匡颖韩伟欣
Owner CHINA UNIV OF GEOSCIENCES (BEIJING)
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