Permeable overflow dam combining functions of water level control and water purification

A technology for water quality purification and water level control, which is applied in the fields of biological water/sewage treatment, water/sludge/sewage treatment, water conservancy projects, etc., and can solve the problem that the permeable overflow dam has not been found, and the adsorption and interception of pollutants has no or limited effect. and other issues, to achieve the effect of improving the quality of river water environment, improving water quality, and purifying water quality

Inactive Publication Date: 2010-09-29
HOHAI UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

This type of overflow dam has a very significant effect on river water regulation and water level elevation, but has little effect on the adsorption and retention of pollutants in the water body, and its ability to purify river water pollutants is also very limited.
[0003] At present, there is no overflow dam that not only meets the hydraulic function requireme

Method used

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  • Permeable overflow dam combining functions of water level control and water purification
  • Permeable overflow dam combining functions of water level control and water purification
  • Permeable overflow dam combining functions of water level control and water purification

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Embodiment

[0012] Control attached figure 1 , 2 Firstly, the solid dam body 1 part of the present invention is constructed with concrete or reinforced concrete on the river course, the dam body is a solid structure, and the dam crest elevation is the minimum water level required by the river channel ecosystem or the minimum water level required by the river channel landscape environment. The higher water level 7. On the upper part of the solid dam body 1, a sash wall 10 cast from concrete or reinforced concrete is constructed. In the sash wall 10, several reinforced concrete partition walls 3 with a mutual interval of 4m are poured along the river width direction, and several partition walls are poured along the water flow direction. Sand-free concrete walls with a mutual interval of 2m form a permeable dam body 4; inside the grid wall 10, a purification medium 5 is laid, and the height of the crest of the permeable dam body 4 exceeds the design constant water level 8 of the overflow da...

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Abstract

The invention provides a permeable overflow dam combining functions of water level control and water purification, which comprises a solid dam body, a permeable dam body and water purifying media arranged in the permeable dam body, wherein the solid dam body is in a water-proof solid structure formed by casting concrete or reinforced concrete, and the height of the dam top of the solid dam body is the height of a higher water level in the lowest water level required by a river channel ecological system or the lowest water level required by river channel landscape environment; the permeable dam body is a lattice fence formed by casting concrete or reinforced concrete, a plurality of reinforced concrete partition walls are cast in the permeable dam body along a river width direction, a plurality of no-fines concrete walls are cast in the permeable dam body along a water flow direction, and the height of the dam top of the permeable dam body is higher than the designed normal water level of the overflow dam and is lower than that of the designed flood level of a river channel; and the water purifying media are pebbles, vermiculites, zeolites or spherical water purifying fillers. The invention not only can meet the requirement of raising the water level without influencing the flood discharge capacity but also can effectively purify water and improve river water environment quality.

Description

technical field [0001] The invention relates to a permeable overflow dam facility with combined functions of water level control and water quality purification, in particular to a permeable overflow dam capable of intercepting and purifying pollutants in river water bodies. Background technique [0002] Before the present invention, the existing overflow dams were mainly (reinforced) concrete or masonry-built solid dams for storing water or raising the water level. To meet the requirements of irrigation, water supply, landscape environment, etc., when the flood comes, a large amount of flood water overflows from the dam and is discharged downstream, which is a typical water conservancy project. This type of overflow dam has a very significant effect on river water regulation and water level elevation, but has little effect on the adsorption and retention of pollutants in the water body, and its ability to purify river water pollutants is also very limited. [0003] At prese...

Claims

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Application Information

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IPC IPC(8): E02B8/00E02B8/06C02F3/34
Inventor 王超钱进侯俊王沛芳于纪玉
Owner HOHAI UNIV
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