CN210505771U - Ecological revetment system for reducing rainfall runoff pollutants - Google Patents
Ecological revetment system for reducing rainfall runoff pollutants Download PDFInfo
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- CN210505771U CN210505771U CN201921341827.3U CN201921341827U CN210505771U CN 210505771 U CN210505771 U CN 210505771U CN 201921341827 U CN201921341827 U CN 201921341827U CN 210505771 U CN210505771 U CN 210505771U
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- 239000003344 environmental pollutant Substances 0.000 title claims abstract description 33
- 231100000719 pollutant Toxicity 0.000 title claims abstract description 32
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- 229910001220 stainless steel Inorganic materials 0.000 claims description 9
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- 239000011449 brick Substances 0.000 claims description 3
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 7
- 239000010779 crude oil Substances 0.000 abstract description 5
- 239000000356 contaminant Substances 0.000 abstract description 2
- 241000196324 Embryophyta Species 0.000 description 47
- 239000010865 sewage Substances 0.000 description 10
- 238000000746 purification Methods 0.000 description 8
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- 241000219991 Lythraceae Species 0.000 description 2
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- 235000006508 Nelumbo nucifera Nutrition 0.000 description 2
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- 238000010521 absorption reaction Methods 0.000 description 2
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- 241000894007 species Species 0.000 description 2
- FEPOUSPSESUQPD-UHFFFAOYSA-N Cymbopogon Natural products C1CC2(C)C(C)C(=O)CCC2C2(C)C1C1(C)CCC3(C)CCC(C)C(C)C3C1(C)CC2 FEPOUSPSESUQPD-UHFFFAOYSA-N 0.000 description 1
- 241000931332 Cymbopogon Species 0.000 description 1
- 241000218666 Metasequoia Species 0.000 description 1
- 244000187664 Nerium oleander Species 0.000 description 1
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- 244000020191 Salix babylonica Species 0.000 description 1
- 235000002493 Salix babylonica Nutrition 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
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- 230000000694 effects Effects 0.000 description 1
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model discloses an ecological revetment system for reducing rainfall runoff pollutants, which comprises an ecological belt unit, a stepped reservoir unit, an emergent aquatic plant planting unit and an ecological floating island unit; wherein, the ecological belt unit comprises a slope surface, and the slope of the slope surface is 2-4%;the stepped water storage tank unit is arranged at the lower end of a slope surface in the ecological belt unit; the cascaded cistern unit is the multilayer cistern that reduces in proper order specifically, and the cistern degree of depth that is close to the ecological zone unit is 150 ~ 180cm, and the degree of depth that is close to the cistern that the unit was planted to emergent aquatic plant is 60 ~ 80cm, and every cistern width is 60 ~ 100cm, has all laid soil matrix in every cistern. The ecological revetment system can be arranged on the shore of the waterfront landscape such as a waterfront river, a coastal lake and the like, not only beautifies the environment, but also can reduce pollutants (such as crude oil, SS, COD, TN, TP and NH) in rainfall runoff3-contaminants like N and heavy metals).
Description
Technical Field
The utility model belongs to the technical field of ecological landscape environment, especially, relate to an ecological revetment system of rainfall runoff pollutant is cut down.
Background
With the continuous expansion of the urban scale, the original green land, lake and the like are gradually replaced by buildings and impervious ground, the ground surface structure of the city is changed by human activities, and the land utilization mode of the city is greatly changed. This influences the interception, infiltration and evaporation of rainwater and rainwater runoff, makes the runoff process develop to extreme direction, has aggravated the natural disasters in the region, and water pollution safety problem is more and more outstanding. The urban runoff is increased, the problem of runoff pollution is highlighted day by day, the urban runoff is influenced by the aesthetic design of the waterfront landscape, and the ecological function and the practical function of most waterfront landscapes are neglected, so that pollutants (such as crude oil, suspended solid SS, chemical oxygen demand COD, total nitrogen TN, total phosphorus TP and ammonia nitrogen NH) in the rainfall runoff3Pollutants such as N and heavy metals) to rivers and lakes.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the purpose aims at solving the problem that rainfall runoff pollutes river course, lake among the rainfall process, provides an ecological revetment system of reducing rainfall runoff pollutant, and this ecological revetment system can set up on the shore protection of waterfront landscape such as shore river, coastal lake, can reduce the pollutant in the rainfall runoff (like crude oil, SS, COD, TN, TP, NH3-contaminants like N and heavy metals).
In order to solve the above problem, the technical scheme of the utility model is that:
an ecological revetment system for reducing rainfall runoff pollutants comprises an ecological belt unit, a stepped water storage tank unit, an emergent aquatic plant planting unit and an ecological floating island unit;
the ecological belt unit comprises a slope surface, the slope of the slope surface is 2% -4%, and the ecological belt unit is used for planting trees, shrubs and/or ground cover plants;
the stepped water storage tank unit is arranged at the lower end of the slope surface in the ecological belt unit;
the stepped water storage tank units are specifically multi-layer water storage tanks which are sequentially lowered, emergent aquatic plants and/or phytoplankton need to be planted in each water storage tank, and each water storage tank is also used for storing rainwater, so that the depth of the water storage tank close to the ecological zone unit is 150-180 cm, the depth of the water storage tank close to the emergent aquatic plant planting unit is 60-80 cm, the width of each water storage tank is 60-100 cm, and soil matrix is paved in each water storage tank.
Preferably, the bottom of each reservoir is provided with a water seepage hole with the diameter of 20-30 cm, and sewage purified in the sewage purification process of plants can slowly seep downwards, so that underground water resources are supplemented, and black and odorous sewage is prevented from being generated.
Preferably, the ecological floating island unit comprises a floating plate and stainless steel cables, the stainless steel cables are arranged at the lower part of the floating plate, the stainless steel cables are arranged at two sides of the floating plate and fixed on the bank, a soil matrix is laid at the upper part of the floating plate, and aquatic plants or emergent aquatic plants are planted on the floating plate.
Preferably, the stepped water reservoir units are 2-4 layers of water reservoirs which are sequentially lowered.
Preferably, the stepped water reservoir unit is formed by building concrete and bricks. The utility model discloses owing to adopt above technical scheme, make it compare with prior art and have following advantage and positive effect:
the utility model discloses an ecological revetment system can set up ecological zone unit at first on the bank of riverway, lake, river course, and ecological zone unit includes that slope 2% -4% is the slope, plants the arbor bush, ground cover plant etc. that weeping willow, oleander, metasequoia, etc. adsorption efficiency are better in ecological zone unit, through matrix filtration, peat purification, biological absorption reduce the chemical composition of the pollutant (such as crude oil, SS, COD, TN, TP, NH3-N and pollutants such as heavy metal) in the rainfall runoff, make the chemical resources in the sewage turn into biological resources; then the stepped water storage tank unit of the second part not only reduces the rainfall runoff flow in a short time in a larger rainfall process and stores a part of rainfall resources so as to prevent waterlogging and reuse the stored rainwater, but also enables emerged plants and phytoplankton planted in the water storage tank to adsorb pollutants in the rainfall runoff and further purify the rainfall runoff; and finally, emergent aquatic plants are planted on the bank side of the slope protection or an ecological floating island unit is arranged to carry out final pollutant adsorption and purification, the emergent aquatic plants can be planted with the re-stressed flowers, the lotus flowers and the like, the ecological floating island can be planted with the iris, the drooping stems, the loosestrife and the like, and water with low pollutant content and environmental protection benefit is obtained through multiple purification of corresponding natural biological species, so that the river pollution is reduced.
The utility model discloses a purify rainfall runoff through phytoremediation for the lower water of final pollutant content flows into the river course. Phytoremediation belongs to a technology for treating environmental pollution, namely, pollutants and harmful substances are treated by plants and other microbial systems. The waterfront plants, emergent aquatic plants and other aquatic plants have huge root systems, so that pollutants in rainfall runoff can be directly adsorbed when the waterfront plants and other aquatic plants continuously grow, and the pollutants can be converted into fertilizers belonging to the waterfront plants. The microorganisms directly decompose and transform organic nitrogen of rainfall runoff, and then the organic nitrogen is removed through harvesting of plants. The aquatic plants are mainly super-accumulation plants, absorb a large amount of heavy metals and organic matters in the water environment, and can not damage the aquatic plants. Secondly the utility model discloses the cascaded cistern unit that sets up not only beautifies the environment, purifies sewage, can reduce the rainfall runoff pollutant moreover, can also reduce the rainfall runoff flow in the short time, stores partly rainfall resource to adjust the waterlogging, utilize the rainfall resource.
Drawings
FIG. 1 is a sectional elevation view of an ecological revetment system for reducing rainfall runoff pollutants according to the present invention;
fig. 2 is a sectional elevation view of a stepped water reservoir unit;
FIG. 3 is an enlarged view of an ecological floating island unit;
fig. 4 is a schematic cross-sectional view of an ecological floating island unit.
Description of reference numerals: 1-ecological zone unit; 2-a stepped water reservoir unit; 3-emergent aquatic plant unit and ecological floating island unit.
Detailed Description
The present invention provides an ecological revetment system for reducing rainfall runoff pollutants, which is described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more fully apparent from the following description and appended claims.
Referring to fig. 1 and 2, an ecological revetment system for reducing rainfall runoff pollutants comprises an ecological belt unit 1, a stepped water storage tank unit 2, an emergent aquatic plant unit and an ecological floating island unit 3;
the ecological zone unit comprises a slope surface, the slope of the slope surface is 2% -4%, trees, shrubs and/or ground cover plants are mainly planted in the ecological zone unit, the slope surface is arranged in the ecological zone because of a slight slope, water accumulation on a road is avoided, rainwater flows onto the road, and a gentle slope is arranged to facilitate rainwater to flow to a river channel;
the stepped water storage tank unit is arranged at the lower end of a slope surface in the ecological belt unit;
the cascaded cistern unit is specifically for the multilayer cistern that reduces in proper order, considers to plant emergent aquatic plants and/or phytoplankton in every cistern, and every cistern still is used for storing the rainwater moreover, and consequently the cistern degree of depth that is close to the ecological zone unit is 150 ~ 180cm, and the degree of depth that is close to the cistern that the unit was planted to emergent aquatic plants is 60 ~ 80cm, and every cistern width is 60 ~ 100cm, has all laid soil matrix in every cistern.
According to the ecological revetment system, ecological zone units can be arranged on the shore of a riverside, a lake or a river, the ecological zone units comprise slope surfaces with the gradient of 2% -4%, arbors, shrubs, ground cover plants and the like with good adsorption capacity are planted in the ecological zone units, and chemical components of pollutants (such as crude oil, SS, COD, TN, TP, NH3-N, heavy metals and the like) in rainfall runoff are reduced through matrix filtration, peat purification and biological absorption, so that chemical resources in sewage are converted into biological resources; then, in the process of rainfall, the rainfall passing through the first part flows into the first layer of reservoir first, and automatically flows into the second layer of reservoir after being full, and so on, not only in the process of larger rainfall, the rainfall runoff flow is reduced in a short time, and a part of rainfall resources are stored, so that the waterlogging is prevented from being generated, the stored rainwater can be recycled, and the emergent aquatic plants and the phytoplankton planted in the reservoir can absorb pollutants in the rainfall runoff, so that the rainfall runoff is further purified; and finally, emergent aquatic plants are planted on the bank side of the revetment or an ecological floating island unit is arranged for carrying out final pollutant adsorption and purification, the emergent aquatic plants can be planted with the re-stressed flowers, the lotus flowers and the like, the ecological floating island unit can be planted with the iris, the drooping cymbopogon herb, the loosestrife and the like, and water with low pollutant content and environmental protection benefit is obtained through multiple purification of corresponding natural biological species, so that the river pollution is reduced.
This embodiment is through phytoremediation purification rainfall runoff, makes the lower water of pollutant content flow into the river course in the end. Phytoremediation belongs to a technology for treating environmental pollution, namely, pollutants and harmful substances are treated by plants and other microbial systems. The waterfront plants, emergent aquatic plants and other aquatic plants have huge root systems, so that pollutants in rainfall runoff can be directly adsorbed when the waterfront plants and other aquatic plants continuously grow, and the pollutants can be converted into fertilizers belonging to the waterfront plants. The microorganisms directly decompose and transform organic nitrogen of rainfall runoff, and then the organic nitrogen is removed through harvesting of plants. The aquatic plants are mainly super-accumulation plants, absorb a large amount of heavy metals and organic matters in the water environment, and can not damage the aquatic plants. And the arranged stepped reservoir unit not only beautifies the environment and purifies sewage, but also can reduce rainfall runoff pollutants, and also can reduce the rainfall runoff flow in a short time and store a part of rainfall resources, thereby regulating waterlogging and utilizing the rainfall resources.
Preferably, the bottom of each reservoir is provided with a water seepage hole with the diameter of 20-30 cm, and sewage purified in the sewage purifying process of plants can slowly seep downwards, so that underground water resources are supplemented, and black and odorous sewage is prevented from being generated.
Preferably, referring to fig. 3 and 4, the ecological floating island comprises a floating plate and stainless steel cables, wherein the stainless steel cables are arranged at the lower part of the floating plate, the stainless steel cables are arranged at two sides of the floating plate and fixed on the bank, a soil substrate is laid at the upper part of the floating plate, and aquatic plants or emergent aquatic plants are planted on the floating plate.
Preferably, cascaded cistern unit specifically is 2 ~ 4 layers of cisterns that reduce in proper order, specifically sets up the number of piles of cistern, can set up according to the height and the width of river bank.
Preferably, the stepped water reservoir unit is formed by building concrete and bricks.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, the changes are still within the scope of the present invention if they fall within the scope of the claims and their equivalents.
Claims (5)
1. An ecological revetment system for reducing rainfall runoff pollutants is characterized by comprising an ecological belt unit, a stepped reservoir unit, an emergent aquatic plant planting unit and an ecological floating island unit;
the ecological belt unit comprises a slope surface, the slope of the slope surface is 2% -4%, and the ecological belt unit is used for planting trees, shrubs and/or ground cover plants;
the stepped water storage tank unit is arranged at the lower end of the slope surface in the ecological belt unit;
the stepped water storage tank unit is a multi-layer water storage tank which is sequentially reduced, the depth of the water storage tank close to the ecological zone unit is 150-180 cm, the depth of the water storage tank close to the emergent aquatic plant planting unit is 60-80 cm, the width of each water storage tank is 60-100 cm, and soil matrix is paved in each water storage tank.
2. The ecological revetment system according to claim 1, wherein the bottom of each reservoir is provided with a weep hole having a diameter of 20-30 cm.
3. The ecological revetment system according to claim 1, wherein the ecological floating island unit comprises a floating plate and stainless steel cables, the stainless steel cables are arranged at the lower part of the floating plate, the stainless steel cables are arranged at two sides of the floating plate and fixed at the bank, a soil matrix is laid at the upper part of the floating plate, and aquatic plants or emergent aquatic plants are planted on the floating plate.
4. The ecological revetment system according to claim 1, wherein said stepped reservoir units are embodied as sequentially lowered 2-4 levels of reservoirs.
5. The ecological revetment system according to claim 1, wherein said stepped reservoir unit is constructed of concrete and bricks.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921341827.3U CN210505771U (en) | 2019-08-19 | 2019-08-19 | Ecological revetment system for reducing rainfall runoff pollutants |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921341827.3U CN210505771U (en) | 2019-08-19 | 2019-08-19 | Ecological revetment system for reducing rainfall runoff pollutants |
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| CN210505771U true CN210505771U (en) | 2020-05-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110372101A (en) * | 2019-08-19 | 2019-10-25 | 上海应用技术大学 | A kind of ecological revetment system for cutting down Rainfall Runoff |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110372101A (en) * | 2019-08-19 | 2019-10-25 | 上海应用技术大学 | A kind of ecological revetment system for cutting down Rainfall Runoff |
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Granted publication date: 20200512 |