Experimental facility for multi-medium percolation and purification of urban rainfall runoff

An urban rainfall and experimental device technology, applied in chemical instruments and methods, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problems of secondary environmental pollution, large area, low purification efficiency, etc.

Inactive Publication Date: 2012-10-31
EAST CHINA NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the improvement of environmental protection awareness and the implementation of energy conservation and emission reduction actions, the purification of urban rainfall runoff has been put on the agenda. The purification of rainwater has alleviated the environmental pressure of rainfall runoff on lower-level receiving water bodies to a certain extent. The protection of the ecological environment has made a beneficial contribution. The rainwater purification device of the prior art has the problems of covering a large area, causing secondary pollution to the environment during the purification process, and the economic investment is large and the purification efficiency is low.
The reason is that due to the wide sources of pol

Method used

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  • Experimental facility for multi-medium percolation and purification of urban rainfall runoff
  • Experimental facility for multi-medium percolation and purification of urban rainfall runoff
  • Experimental facility for multi-medium percolation and purification of urban rainfall runoff

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] refer to figure 2 , simulating the purification experiment of rainfall and runoff in the urban grass-planted bank zone, using the turf layer 61 as the permeable pavement layer 6, laying the turf layer 61 above the cinder layer 7 in the shell 1, and placing the water collection tank 3 into other medium layers , make the upper plane of the sump 3 flush with the upper planes of other medium layers, and connect each outlet pipe of the sump 3 with the sampling port 12 on the side wall of the housing 1, so that the turf layer 61 can be used as the water-permeable Experiment with pavement 6.

[0017] The specific experiment is as follows: Determine the runoff flow rate as 160 L h -1 , adjust the frequency converter 52 to control the output flow of the water pump 51 to be 160 L h -1 At this time, the change of the flow rate is detected by the flow meter 54, and the water pump 51 transports the rainwater collected in the water supply device 5 to the dripping plate 14 of the h...

Embodiment 2

[0020] refer to image 3 , simulating the purification experiment of rainfall runoff by the urban hard shore zone, using the permeable brick layer 62 as the permeable pavement layer 6, first laying the permeable brick layer 62 above the cinder layer 7 in the shell 1, and putting the sump 3 into In other medium layers, make the upper plane of the sump 3 flush with the upper planes of other medium layers, and connect the outlet pipes of the sump 3 with the sampling ports 12 on the side wall of the housing 1 to implement water-permeable The brick layer 62 is an experiment of the permeable pavement 6 .

[0021] The specific experiment is as follows: adjust the frequency converter 52 to control the output flow of the water pump 51 to be 160 L h -1 At this time, the change of the flow rate is detected by the flow meter 54, and the water pump 51 transports the rainwater collected in the water supply device 5 to the dripping plate 14 of the housing 1 through the water supply pipe 55,...

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Abstract

The invention discloses an experimental facility for multi-medium percolation and purification of urban rainfall runoff. The experimental facility comprises a shell, header tanks, a water supply device, a permeable paving layer, a coal cinder layer, a multi-medium filtering layer, a natural soil layer and a base, wherein the shell is arranged above the base; the natural soil layer, the multi-medium filtering layer, the coal cinder layer and the permeable paving layer are laid from bottom to top in sequence from the bottom in the shell; and the header tanks are respectively arranged in the base and medium layers in the shell. The purification of the water quality of the rainwater runoff is finished in virtue of natural flow of the rainwater runoff fully, and through the adjustment of mediums in the medium layers, the percolation and purification scheme with high purification efficiency can be accurately proposed, and the scientific evidence is provided for manufacturing a rainwater purification device.

Description

technical field [0001] The invention relates to an urban water body ecological purification project in the field of environmental protection technology, in particular to an experimental device for urban rainfall runoff multi-media percolation purification. Background technique [0002] With the improvement of environmental protection awareness and the implementation of energy conservation and emission reduction actions, the purification of urban rainfall runoff has been put on the agenda. The purification of rainwater has alleviated the environmental pressure of rainfall runoff on lower-level receiving water bodies to a certain extent. The protection of the ecological environment has made a beneficial contribution. The rainwater purification device of the prior art has the problems of occupying a large area, causing secondary pollution to the environment during the purification process, large economic investment, and low purification efficiency. The reason is that due to th...

Claims

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Application Information

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IPC IPC(8): C02F9/14
Inventor 陈振楼王东启周栋毕春娟吕金刚
Owner EAST CHINA NORMAL UNIV
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