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Green roof capable of lowering pollutant concentration in rainwater runoff

A pollutant concentration, green technology, applied in the direction of roof decoration, building roof, roof drainage, etc., can solve the problems of poor green roof interception effect, serious microbial membrane pollution, high pollutant concentration, improve the runoff water quality, and improve the interception effect. , the effect of improving the interception capacity

Inactive Publication Date: 2019-07-05
XUZHOU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at defects such as high concentration of pollutants in roof runoff, serious microbial film pollution, poor interception effect of green roof, and small roof load in the prior art. The present invention provides a green roof that can reduce the concentration of pollutants in rainwater runoff.

Method used

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  • Green roof capable of lowering pollutant concentration in rainwater runoff
  • Green roof capable of lowering pollutant concentration in rainwater runoff
  • Green roof capable of lowering pollutant concentration in rainwater runoff

Examples

Experimental program
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Effect test

Embodiment 1

[0031] refer to figure 1 A green roof capable of reducing the concentration of pollutants in rainwater runoff, comprising a structural layer 1 for covering the roof and playing a supporting role; a green roof surrounded by centrifugal glass wool 14 is arranged on the upper part of the structural layer 1;

[0032] The green roof is as follows from bottom to top: waterproof layer 2, root blocking layer 3, storage and drainage layer 4, filter layer 7, and substrate layer 8 for planting vegetation 11;

[0033] A permeable plate 9 is installed between the filter layer 7 and the matrix layer 8; several permeable holes 10 are arranged on the permeable plate 9;

[0034] An overflow pipe 12 communicating with the storage and drainage layer 4 is provided on the side wall of the centrifugal glass wool 14; the overflow pipe 12 is placed with activated carbon 13 for purifying rainwater.

[0035] refer to figure 2 , the matrix layer 8 adopts a palace-style structure, and the vegetation p...

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Abstract

The invention discloses a green roof capable of lowering the pollutant concentration in rainwater runoff, and provides a green roof for improving runoff water quality, river closure capacity and water-holding capacity. The green roof includes a structural layer, a water-proof layer, a root-blocking layer, a water storing-drainage layer, a filtering layer, a substrate layer and a vegetative cover.Rainwater enters the substrate layer from the vegetative cover layer, the substrate layer and the vegetative cover provide the functions that the water quality of the rainwater is purified, the runoffpeak value is delayed, and roof runoff is reduced, then pollutions are held back through the filtering layer, the water storing-drainage layer is entered, when the rainwater is accumulated to a certain amount and is discharged through an overflow pipe, and the roof runoff is generated. The green roof has the functions of purifying the water quality of the rainwater, delaying runoff generation time, delaying the runoff peak value and reducing the roof runoff and landscape.

Description

technical field [0001] The invention belongs to the field of low-impact development of sponge cities, and specifically relates to a green roof that integrates functions such as purifying rainwater quality, delaying runoff time, delaying runoff peak value, reducing roof runoff, and landscape. Background technique [0002] In recent years, with the continuous advancement of urbanization in our country, the impermeable area has increased sharply. When the rainfall increases, the rainwater cannot be discharged in time, resulting in urban waterlogging disasters and seriously endangering the safety of people's property. At the same time, due to the widespread pollution of urban roads, The runoff generated by rainfall after washing the road surface, especially the initial rainwater contains a large amount of pollutants. If it is discharged into the river without treatment, it will cause water pollution, waste of rainwater resources, and aggravate the urban heat island effect. Spong...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04D13/00E04D11/02E04D13/04A01G24/13A01G24/15A01G24/28A01G24/46C02F9/02
CPCA01G24/13A01G24/15A01G24/28A01G24/46C02F1/001C02F1/281E04D11/02E04D13/00E04D13/04Y02A30/254Y02B80/32
Inventor 范秀磊王建华陈佳贞刘加强杨成方徐志鹏
Owner XUZHOU UNIV OF TECH
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