CN104099892A - Lakeside pollutant-interception greenbelt building method - Google Patents

Lakeside pollutant-interception greenbelt building method Download PDF

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Publication number
CN104099892A
CN104099892A CN201410336382.5A CN201410336382A CN104099892A CN 104099892 A CN104099892 A CN 104099892A CN 201410336382 A CN201410336382 A CN 201410336382A CN 104099892 A CN104099892 A CN 104099892A
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lakeside
gravel
greenbelt
concave type
porous pavement
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CN104099892B (en
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成水平
冯玉琴
崔娜欣
曹晓艳
吴娟
代嫣然
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Tongji University
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Tongji University
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A10/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
    • Y02A10/11Hard structures, e.g. dams, dykes or breakwaters
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

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  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

The invention relates to a lakeside pollutant-interception greenbelt building method. The lakeside pollutant-interception greenbelt building method includes optimally optimizing four pollutant-interception units including a shallow gravel trench, a porous pavement, a low-elevation greenbelt and an emergent aquatic plant collocation area, wherein interception control of the shallow gravel trench for runoff pollutants, infiltration buffer of the porous pavement, storage and purification of the low-elevation greenbelt and landscape greening function of the aquatic plant collocation area are given into full play. Compared with the prior art, the lakeside pollutant-interception greenbelt building method realizes effective control on lake-entry runoff pollutants by the aid of filtering, sedimentation and biodegradation, runoff flood peak is reduced by more than 30%, pollutants are removed by more than 30%, pollution load of surface water body such as lakes is reduced, and integrity of water quality and ecological system of lakes is effectively protected.

Description

Dirty greenbelt construction process is cut in a kind of lakeside
Technical field
The invention belongs to field of environment engineering, be specifically related to a kind of lakeside and cut dirty greenbelt construction process.
Background technology
At present, urbanization process at a high speed, is developed natural basin, vegetation is damaged, and rolling up of the waterproof ground such as concrete construction, road, commercial area, residential quarter, parking lot permeates the ground precipitation, the part of evaporation reduces, and causes surface flow to roll up.Surface flow washes away underlying surface and can carry a large amount of pollutants and enter receiving water body, cause physics, chemical property and the microbiologic properties of water body to change, even become the leading factor that affects water quality, some toxic organic compounds and heavy metal can cause serious impact to aquatic ecosystem, and may produce potential secondary pollution, be typical urban non-point source pollution.
Lake is the important component part of natural water, in mankind's agricultural, industry and life, occupies very important position.Along with the quickening of process of industrialization, the discharge value of sanitary sewage, industrial wastewater constantly increases, and widespread pollution from the overuse of fertilizers and pesticides in rural area is day by day serious, and river course discharge, surface flow can carry a large amount of pollutants and enter lake, and its water quality environment is sharply worsened.The mankind excessive, incorrect exploitation and use destroyed the original ecological homeostasis in lake.
It is to cause one of lake water quality deterioration, eutrophication principal element that even ecosystem destroys that surface flow pollutes.The surface flow that enters lake pollutes and mainly comes from agricultural chemicals runoff, road runoff and greening lawn runoff.In surface flow, contain higher TSS, COD and organic pollution, lake water quality and ecological environment are existed to larger threat.
Lakeside Zone is the intermediate zone between water body in lake and terrestrial ecosystems, can effectively be detained the pollutant of Lu Yuan input, is the important protective barrier in lake.The independent setting that traditional Lakeside Zone afforestation project mostly is single greening makes scape or certain section of dirty technique, but because surface flow pollutant component is complicated and seriously polluted, therefore, the single dirty greening technique of cutting is difficult to realize the effective control to run-off and runoff pollution, can cause so a large amount of runoff pollutions to enter water body in lake, cause the serious consequences such as body eutrophication.At present the planning construction of Lakeside Zone being laid to the lakeside ecosystem gradating as in conjunction with local urban planning, ecosystem integrity from single afforestation vegetation builds, substrate reparation, plants configuration and landscape design are organically combined, give full play to section dirt and the landscape function of lakeside greenbelt.
Summary of the invention
Object of the present invention is exactly to provide a kind of lakeside to cut dirty greenbelt construction process in order to overcome the defect that above-mentioned prior art exists.
Object of the present invention can be achieved through the following technical solutions:
Dirty greenbelt construction process is cut in a kind of lakeside, and the method is that gravel shallow ridges, porous pavement, the dirty unit in up concave type greenery patches and four kinds sections, district of emergent aquactic plant collocation are optimized to combination, and then realizes entering effective control of lake runoff pollution, comprises the following steps:
(1) choose the urban lakes with Lakeside Zone, this urban lakes is subject to runoff pollution serious;
(2) gravel shallow ridges is set along lakeside to phytal zone, this gravel shallow ridges top layer is laid artificial soil horizon, and plantation greening herbaceous plant, and bottom is laid layer of gravel;
(3) the gravel shallow ridges arranging along step (2) arranges porous pavement to phytal zone one side, and this porous pavement is followed successively by water-permeable brick, coarse sand, graded broken stone and soil matrix from top to bottom;
(4) porous pavement arranging along step (3) arranges up concave type greenery patches to phytal zone one side, the peripheral plantation in this up concave type greenery patches herbaceous plant, central area plantation emergent aquactic plant;
(5) emergent aquactic plant collocation growing area is set on the bank protection of phytal zone.
Gravel shallow ridges elevation described in step (2) is lower than porous pavement 0.1~0.2m, this gravel shallow ridges width is 1.0~1.5m, the degree of depth is 1.0~1.2m, described artificial soil horizon's thickness is 0.2~0.3m, described layer of gravel thickness is 0.7~1.0m, and the particle diameter of this layer of gravel cobblestone is 1~5cm.
The thickness of water-permeable brick, coarse sand and graded broken stone described in step (3) is respectively 5~8cm, 4~5cm, 15~30cm, and the thickness of soil matrix meets permeable face and is greater than 1.0m apart from groundwater table.
The described up concave type greenery patches degree of depth of step (4) is 0.3~0.6m, and this up concave type greenery patches elevation is lower than porous pavement 0.1~0.5m.
The initial elevation of the described emergent aquactic plant of step (5) collocation growing area and the waterline potential difference that fluctuates is 0.1~0.3m, and lower than the initial elevation in up concave type greenery patches, potential difference is 0.2~0.6m.
The described emergent aquactic plant of step (5) is arranged in pairs or groups growing area horizontal by 18~30.。
Between described gravel shallow ridges, porous pavement, up concave type greenery patches and emergent aquactic plant collocation growing area, be provided with greening lawn.
Described gravel shallow ridges bottom is provided with the pipeline that is communicated to up concave type greenery patches, and the lower water seepage of this gravel shallow ridges can be delivered to up concave type greenery patches by pipeline.
The Main Function of described gravel shallow ridges is that agricultural runoff pollution or road runoff pollution are tentatively tackled, utilize under it ooze, the function flood peak clipping flow such as filtration, reduce the pollutants such as TSS, COD, and remove a certain amount of nitrogen phosphorus by nitrification, suction-operated.
Described porous pavement had both had view amusement function, can absorb again rainfall, did not produce runoff pollution, can have certain interception function to the storm runoff that exceeds gravel shallow ridges disposal ability simultaneously.
The inner rainwater in catchment can be processed by modes such as permeating, evaporate, accumulate in described up concave type greenery patches, storm runoff is had to certain buffering interception function, and realize entering the removal of lake pollutant by the effect such as physical sedimentation, biodegradation, cut down runoff flood peak amount more than 30%, remove pollutant more than 30%, reduce the load such as the pollution of water that enters lake.
Described emergent aquactic plant collocation district is as last one biological barrier, and existing beautification of landscape effect, can protect native dyke strengthening simultaneously, is the important component part of Lakeside Zone complex ecosystem.
Compared with prior art, the present invention is by being optimized configuration by gravel shallow ridges, porous pavement, up concave type greenery patches and emergent aquactic plant collocation district, can effectively reduce into lake runoff pollution, wherein, gravel shallow ridges elevation is lower than porous pavement, can receive through road or the agricultural run-off of greening lawn and exceed the runoff of porous pavement disposal ability, and it is carried out to preliminary purification; The lower water seepage of gravel shallow ridges is delivered to up concave type greenery patches by pipeline, realizes further purification through effects such as sedimentation, biodegradations to entering lake runoff; The elevation in up concave type greenery patches, lower than porous pavement, can be received the runoff that exceedes porous pavement self disposal ability, and that gives full play to up concave type greenery patches stagnantly holds effect; Emergent aquactic plant collocation growing area is last one biological barrier, can effectively tackle pollution of area source.
Brief description of the drawings
Fig. 1 is the structural configuration schematic diagram that dirty greenbelt is cut in a kind of lakeside of the present invention;
Description of symbols in figure:
1-gravel shallow ridges, 2-porous pavement, 3-up concave type greenery patches, 4-emergent aquactic plant collocation district, 5-gravel, 6-PVC pipeline, 7-emergent aquactic plant.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment
Dirty greenbelt construction process is cut in a kind of lakeside, and the method is that gravel shallow ridges 1, porous pavement 2, the dirty unit in up concave type greenery patches 3 and 4 four kinds sections, district of emergent aquactic plant collocation are optimized to combination, and then realizes entering effective control of lake runoff pollution, comprises the following steps:
(1) choose the urban lakes with Lakeside Zone, this urban lakes is subject to runoff pollution serious;
(2) gravel shallow ridges 1 is set along lakeside to phytal zone, this gravel shallow ridges 1 top layer is laid artificial soil horizon, and plantation greening herbaceous plant, and bottom is laid layer of gravel;
(3) the gravel shallow ridges 1 arranging along step (2) arranges porous pavement 2 to phytal zone one side, and this porous pavement 2 is followed successively by water-permeable brick, coarse sand, graded broken stone and soil matrix from top to bottom;
(4) porous pavement 2 arranging along step (3) arranges up concave type greenery patches 3 to phytal zone one side, the peripheral plantation herbaceous plant in this up concave type greenery patches 3, central area plantation emergent aquactic plant 7;
(5) emergent aquactic plant collocation growing area 4 is set on the bank protection of phytal zone.
As shown in Figure 1, cut dirty greenbelt for the lakeside that adopts the inventive method to be built into, set gradually along lakeside to phytal zone between gravel shallow ridges 1, porous pavement 2, up concave type greenery patches 3 and emergent aquactic plant collocation 4, four kinds of unit of growing area and be equipped with greening lawn.
Wherein, gravel shallow ridges 1 elevation is lower than porous pavement 2, potential difference is 0.1~0.2m, the width of this gravel shallow ridges 1 is 1.0~1.5m, the degree of depth is 1.0~1.2m, artificial soil horizon's thickness that gravel shallow ridges 1 top layer is laid is 0.2~0.3m, and the layer of gravel thickness that bottom is laid is 0.7~1.0m, and the particle diameter of gravel 5 is 1~5cm.The bottom of gravel shallow ridges 1 is also provided with the pvc pipe road 6 that is communicated to up concave type greenery patches, and the lower water seepage of this gravel shallow ridges 1 can be delivered to up concave type greenery patches 3 by pvc pipe road 6.In porous pavement 2, the thickness of top-down water-permeable brick, coarse sand and graded broken stone is respectively 5~8cm, 4~5cm, 15~30cm, and the thickness of soil matrix meets permeable face is greater than 1.0m requirement apart from groundwater table.The degree of depth in up concave type greenery patches 3 is 0.3~0.6m, and its elevation is lower than porous pavement 2, and potential difference is 0.1~0.5m.The initial elevation of emergent aquactic plant collocation growing area 4 and the waterline potential difference that fluctuates is 0.1~0.3m, and lower than the initial elevation in up concave type greenery patches 3, potential difference is 0.2~0.6m, and this emergent aquactic plant is arranged in pairs or groups growing area 4 horizontal by 18~30 °.
Cut in pollution course at lakeside greenbelt, the Main Function of gravel shallow ridges 1 is that agricultural runoff pollution or road runoff pollution are tentatively tackled, utilize under it ooze, the function flood peak clipping flow such as filtration, reduce the pollutants such as TSS, COD, and remove a certain amount of nitrogen phosphorus by nitrification, suction-operated.Porous pavement 2 had both had view amusement function, can absorb again rainfall, did not produce runoff pollution, can have certain interception function to the storm runoff that exceeds gravel shallow ridges 1 disposal ability simultaneously.The inner rainwater in catchment can be processed by modes such as permeating, evaporate, accumulate in up concave type greenery patches 3, storm runoff is had to certain buffering interception function, and can realize entering the removal of lake pollutant by the effect such as physical sedimentation, biodegradation, cut down runoff flood peak amount more than 30%, remove pollutant more than 30%, reduce the load such as the pollution of water that enters lake.Emergent aquactic plant collocation district 4 is as last one biological barrier, and existing beautification of landscape effect, can protect native dyke strengthening simultaneously, is the important component part of Lakeside Zone complex ecosystem.

Claims (7)

1. dirty greenbelt construction process is cut in a lakeside, it is characterized in that, the method is that gravel shallow ridges, porous pavement, the dirty unit in up concave type greenery patches and four kinds sections, district of emergent aquactic plant collocation are optimized to combination, and then realizes entering effective control of lake runoff pollution, comprises the following steps:
(1) choose the urban lakes with Lakeside Zone, this urban lakes is subject to runoff pollution serious;
(2) gravel shallow ridges is set along lakeside to phytal zone, this gravel shallow ridges top layer is laid artificial soil horizon, and plantation greening herbaceous plant, and bottom is laid layer of gravel;
(3) the gravel shallow ridges arranging along step (2) arranges porous pavement to phytal zone one side, and this porous pavement is followed successively by water-permeable brick, coarse sand, graded broken stone and soil matrix from top to bottom;
(4) porous pavement arranging along step (3) arranges up concave type greenery patches to phytal zone one side, the peripheral plantation in this up concave type greenery patches herbaceous plant, central area plantation emergent aquactic plant;
(5) emergent aquactic plant collocation growing area is set on the bank protection of phytal zone.
2. dirty greenbelt construction process is cut in a kind of lakeside according to claim 1, it is characterized in that step
(2) described gravel shallow ridges elevation is lower than porous pavement 0.1~0.2m, this gravel shallow ridges width is 1.0~1.5m, and the degree of depth is 1.0~1.2m, and described artificial soil horizon's thickness is 0.2~0.3m, described layer of gravel thickness is 0.7~1.0m, and the particle diameter of this layer of gravel cobblestone is 1~5cm.
3. dirty greenbelt construction process is cut in a kind of lakeside according to claim 1, it is characterized in that, the thickness of water-permeable brick, coarse sand and graded broken stone described in step (3) is respectively 5~8cm, 4~5cm, 15~30cm, and the thickness of soil matrix meets permeable face and is greater than 1.0m apart from groundwater table.
4. dirty greenbelt construction process is cut in a kind of lakeside according to claim 1, it is characterized in that, the described up concave type greenery patches degree of depth of step (4) is 0.3~0.6m, and this up concave type greenery patches elevation is lower than porous pavement 0.1~0.5m.
5. dirty greenbelt construction process is cut in a kind of lakeside according to claim 1, it is characterized in that, the initial elevation of the described emergent aquactic plant of step (5) collocation growing area and the waterline potential difference that fluctuates is 0.1~0.3m, and lower than the initial elevation in up concave type greenery patches, both potential differences are 0.2~0.6m.
6. dirty greenbelt construction process is cut in a kind of lakeside according to claim 1, it is characterized in that, between described gravel shallow ridges, porous pavement, up concave type greenery patches and emergent aquactic plant collocation district, be equipped with greening lawn, described gravel shallow ridges bottom is also provided with the pipeline that is communicated to up concave type greenery patches.
7. dirty greenbelt construction process is cut in a kind of lakeside according to claim 1, it is characterized in that, described emergent aquactic plant collocation growing area is horizontal by 18~30 °.
CN201410336382.5A 2014-07-15 2014-07-15 Dirty greenbelt construction process is cut in a kind of lakeside Expired - Fee Related CN104099892B (en)

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Cited By (9)

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Publication number Priority date Publication date Assignee Title
CN105540859A (en) * 2016-01-11 2016-05-04 镇江新区环境监测站有限公司 Ectopic and in-situ combined gravel bed water ecological-restoration system
CN105821949A (en) * 2016-03-17 2016-08-03 中建钢构有限公司 Sponge city complex
CN107381941A (en) * 2017-07-27 2017-11-24 中国环境科学研究院 Three-level barrier Ecological Wall
CN108755895A (en) * 2018-05-08 2018-11-06 中国科学院生态环境研究中心 A kind of counter-slope formula is shut off filtration system and its construction method
CN108951545A (en) * 2018-08-06 2018-12-07 杜景景 Porous box water purifying revetment system
CN109440900A (en) * 2018-09-03 2019-03-08 深圳地大水务工程有限公司 A kind of counter-slope formula grass type shuts off trench system
CN109964746A (en) * 2019-04-24 2019-07-05 石家庄市政设计研究院有限责任公司 A kind of sponge city sunk type greenery patches structure
CN110028164A (en) * 2019-04-11 2019-07-19 中国电建集团贵阳勘测设计研究院有限公司 Lakeside zone for intercepting and purifying non-point source pollution and construction method thereof
CN115362870A (en) * 2022-08-23 2022-11-22 云南省生态环境科学研究院 Application of longan in deep green mountain in lake wetland ecological restoration

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105540859A (en) * 2016-01-11 2016-05-04 镇江新区环境监测站有限公司 Ectopic and in-situ combined gravel bed water ecological-restoration system
CN105821949A (en) * 2016-03-17 2016-08-03 中建钢构有限公司 Sponge city complex
CN107381941A (en) * 2017-07-27 2017-11-24 中国环境科学研究院 Three-level barrier Ecological Wall
CN107381941B (en) * 2017-07-27 2023-05-19 中国环境科学研究院 Three-stage barrier ecological wall
CN108755895A (en) * 2018-05-08 2018-11-06 中国科学院生态环境研究中心 A kind of counter-slope formula is shut off filtration system and its construction method
CN108951545A (en) * 2018-08-06 2018-12-07 杜景景 Porous box water purifying revetment system
CN109440900A (en) * 2018-09-03 2019-03-08 深圳地大水务工程有限公司 A kind of counter-slope formula grass type shuts off trench system
CN110028164A (en) * 2019-04-11 2019-07-19 中国电建集团贵阳勘测设计研究院有限公司 Lakeside zone for intercepting and purifying non-point source pollution and construction method thereof
CN110028164B (en) * 2019-04-11 2023-11-21 中国电建集团贵阳勘测设计研究院有限公司 Lakeside zone for intercepting and purifying non-point source pollution and construction method thereof
CN109964746A (en) * 2019-04-24 2019-07-05 石家庄市政设计研究院有限责任公司 A kind of sponge city sunk type greenery patches structure
CN115362870A (en) * 2022-08-23 2022-11-22 云南省生态环境科学研究院 Application of longan in deep green mountain in lake wetland ecological restoration

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