CN205294972U - Purify ecological embankment of non -point source pollution thing - Google Patents

Purify ecological embankment of non -point source pollution thing Download PDF

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Publication number
CN205294972U
CN205294972U CN201521129638.1U CN201521129638U CN205294972U CN 205294972 U CN205294972 U CN 205294972U CN 201521129638 U CN201521129638 U CN 201521129638U CN 205294972 U CN205294972 U CN 205294972U
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layer
reaction tank
domatic
plant
ecological revetment
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CN201521129638.1U
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翟鹏辉
谭德远
郭宏凯
樊蓓莉
王婉清
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BEIJING DONGFANG LIHE LANDSCAPE DESIGN CO LTD
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BEIJING DONGFANG LIHE LANDSCAPE DESIGN CO LTD
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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
    • 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

Abstract

The utility model relates to a purify ecological embankment of non -point source pollution thing, cushion the reaction tank, set up onshore and be located including at least one setting one -level buffering reaction tank, the second grade of at least one setting on domatic onshore the stake in the one -level buffering reaction tank outside, set up domatic and with the gabion shore protection of surface of water contact. The utility model discloses make at first process one -level buffering reaction tank of non -point source pollution thing, the big particulate pollution in the sewage of opposite source is detained the reaction with abundant biochemistry. Consequently, can show the jam that reduces the domatic matrix in river lake to one -level buffering reaction tank and the scrubbing of second grade buffering reaction tank is loaded, it is domatic that second grade buffering reaction tank is located the river lake, outside possessing the all functions of one -level buffering reaction tank, can also improve the domatic soil and water conservation ability in river lake.

Description

A kind of ecological revetment purifying area source pollutants
Technical field
This utility model relates to ecological engineering field, particularly relates to a kind of ecological revetment purifying area source pollutants, particularly relates to a kind of ecological shore protection system purifying the nitrogenous class area source pollutants in river course.
Background technology
Current water bodies of rivers and lakes severe water pollution, eutrophication frequently occurs, and soil erosion phenomenon also occurs often, how to control polluter and enters water bodies of rivers and lakes, improves water quality, and prevent the large-area loss of water and soil, it has also become instant task. River pollution of area source is the one of the main reasons causing river pollution, quickening particular with urbanization process, the change of urban land use character, waterproof region area proportion increases, Rainfall runoff significantly increases, its contaminant capacity carried also increases therewith, and the river surface source pollution threat that rainwater causes can not be out in the cold again.
In the preventing and treating of river pollution of area source, the application of ecological revetment has extremely important effect. Ecological revetment has gallery function, pooling feature and vegetation bank revetment function, especially has irreplaceable effect in pollution of area source and Soil Erosion Prevention and Cure. Traditional slope protection form mainly has stone masonry shore protection, mold-bagged concrete shore protection and concrete prefabricated (cast-in-place) plate shore protection. Stablize and flood control safety though this shore protection pattern meets bank protection, but completely cut off the mass exchange between soil and water body, destroy the original ecosystem of shore protection band, cause the problems such as bio-diversity declines, water quality deterioration. Ecology typed bank revetment pattern common at present mainly has vegetation ecological shore protection, ecology bag technology, eco-concrete technology, gabion shore protection etc. Although China adopts such bank protection method that lakeside slope, river is renovated, achieve certain achievement, simultaneously it have also been found that some problems. As when area source pollutants enter river course domatic time, owing to slope flow is anxious, hydraulic detention time is short, causes domatic substrate clogging and cuts the problems such as dirt is not thorough; When in the face of nitrogen content higher area source pollutants, shore protection system is limited to the removal efficiency of pollutant; Domatic water and soil conservation ability is weak.
Utility model content
The purpose of this utility model is to propose a kind of ecological revetment purifying area source pollutants, to solve the problems referred to above existed in current channel revetment, improves the removal efficiency of area source pollutants, strengthens domatic water and soil conservation ability simultaneously.
For achieving the above object, this utility model provides a kind of ecological revetment purifying area source pollutants, it is arranged on first-level buffer reaction tank on the bank including at least one, at least one be arranged on domatic on level 2 buffering reaction tank, it is arranged on the bank and is positioned at the timber outside described first-level buffer reaction tank, it is arranged on gabion shore protection that is domatic and that contact with the water surface, described first-level buffer reaction tank include arranging top layer on the bank first kind is planted layer and is arranged on described first kind of first adsorption layer planted under layer, described level 2 buffering reaction tank include being arranged on domatic top layer second kind plants layer, it is arranged on described second kind of second adsorption layer planted under layer, it is arranged on described second kind of GSZ planted between layer and described second adsorption layer.
Preferably, described first kind plant layer and described second kind plant on layer plant be implanted with wetland plant.
Preferably, described first kind plant between layer and described first adsorption layer, described second kind plant and be equipped with geotextiles between layer and described second adsorption layer.
Preferably, layer is planted and described second kind of bottom planting layer is provided with geotextiles for described first kind.
Preferably, described first adsorption layer is the thickness zeolite layer at 40��60cm.
Preferably, described second adsorption layer includes the second zeolite layer and cobblestone layer, and described second zeolite layer is arranged with cobblestone layer vertical spacing.
Preferably, the side of described first adsorption layer, the side of described second zeolite layer, described cobblestone layer side be equipped with impermeable stratum.
Preferably, described impermeable stratum is geomembrane.
Preferably, described first kind plant layer and described second kind plant layer each parallel to ground arrange, thickness is 10��30cm.
Preferably, described second adsorption layer is parallel to domatic setting, and thickness is 40��60cm.
Based on technique scheme, the utility model has the advantages that:
This utility model is by arranging at least one first-level buffer reaction tank on the coast, on domatic, at least one level 2 buffering reaction tank is set, making area source pollutants first pass around first-level buffer reaction tank, the bulky grain pollutant in the sewage of source, opposite carry out being detained and sufficient biochemical reaction. Therefore, first-level buffer reaction tank can significantly reduce the blocking of the domatic substrate in lake, river and the scrubbing load of level 2 buffering reaction tank; It is domatic that level 2 buffering reaction tank is positioned at lake, river, is possessing outside all of function of first-level buffer reaction tank, additionally it is possible to improves the water and soil conservation ability that lake, river is domatic.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by of the present utility model, constitutes the part of the application, and schematic description and description of the present utility model is used for explaining this utility model, is not intended that improper restriction of the present utility model. In the accompanying drawings:
Fig. 1 is the ecological revetment structural representation purifying river course area source pollutants;
Wherein, 1��wetland plant; Plant layer for 2��the first kinds; 3��the first adsorption layers; 4��GSZ; Plant layer for 5��the second kinds; 6��the second zeolite layer; 7��cobblestone layer; 8��gabion shore protection; Flow direction in A��first-level buffer reaction tank and level 2 buffering reaction tank.
Detailed description of the invention
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Ecological revetment of the present utility model mainly includes timber, gabion shore protection 8, first-level buffer reaction tank, level 2 buffering reaction tank. As it is shown in figure 1, illustrated therein is a kind of preferred implementation of the present utility model.Specifically, a kind of ecological revetment purifying area source pollutants that this utility model provides, including at least one be arranged on first-level buffer reaction tank on the bank, at least one be arranged on domatic on level 2 buffering reaction tank, be arranged on the bank and be positioned at the timber outside described first-level buffer reaction tank, be arranged on gabion shore protection 8 that is domatic and that contact with the water surface. Wherein, described first-level buffer reaction tank include arranging top layer on the bank first kind is planted layer 2 and is arranged on described first kind of first adsorption layer 3 planted under layer 2, and described level 2 buffering reaction tank includes being arranged on second kind of domatic top layer and plants layer 5, is arranged on described second kind of second adsorption layer planted under layer 5, is arranged on described second kind of GSZ 4 planted between layer 5 and described second adsorption layer.
In this utility model, from the area source pollutants of rainwash after timber, enter described first buffering reaction pond. Timber effect in this ecological revetment cleaning system specifically includes that (1) reduces through flow velocity, intercepts bigger organic particulate matter or rubbish, it is simple to artificial process in time; (2) water flows between timber gap, increases Dissolved Oxygen in Water, when water body entrance plantation layer and adsorption layer are conducive to ammonification and the nitration reaction of organic nitrogen; (3) shore protection, strengthens shore protection overall structure.
Preferably, described first kind plant layer 2 and described second kind plant layer 5 by local soil and wormcast according to 1:(10��20) volume ratio mixing form, and described first kind plant layer 2 and described second kind plant kind on layer 5 and be implanted with wetland plant 1. And described first kind plant between layer 2 and described first adsorption layer 3, described second kind plant and between layer 5 and described second adsorption layer, be equipped with geotextiles, described first kind of bottom planting layer 2 also is provided with geotextiles. Preferably, plant layer 2 and described second kind of bottom planting layer 5 is provided with geotextiles for described first kind, described first kind plant layer 2 and described second kind plant layer 5 and arrange each parallel to ground, thickness is 10��30cm.
Plant layer 2 by described first kind and be arranged on the top of the first adsorption layer 3, primarily serve three below effect: (1) can increase the quantity of soil porosity and aggregate, improve Soil structure, there is good aeration, water penetration and water-retaining property, after area source pollutants enters first-level buffer reaction tank, serve filtration, prevent the domatic substrate clogging in lake, river and increase the pollutant effect in plantation layer stop with response time; (2) wormcast has very big specific surface area, become the attachment carrier of many microorganisms, containing the group that microorganism forms in a large number such as substantial amounts of antibacterial, Ammonifying bacteria, nitrobacteria, fungus in wormcast, and reproduction speed is doubled and redoubled, and becomes the decomposition center of soil. After area source pollutants enters first-level buffer reaction tank, the organic nitrogen in pollutant first passes around Ammonifying bacteria under aerobic condition and is converted into ammoniacal nitrogen (NH4 +N), again it is converted into nitrate nitrogen (NO by nitrobacteria subsequently3N). Ammoniacal nitrogen in pollutant can be converted into nitrate nitrogen (NO through nitrobacteria3N), the nitrate nitrogen in pollutant is planted in layer 2 and the first adsorption layer 3 at first kind and is not participated in any reaction; (3) not only rich in substantial amounts of organic matter, nitrogen, phosphorus, potassium and humic acid etc. in wormcast, also rich in the necessary 16 kinds of nutrients of plant growing and the phytohormone with stimulation plant growing, the growth of plant and the quality of raising crop are had and obviously acts on.
Plant layer 2 and described second kind of wetland plant planted in layer 51 primarily serves following 4 effects for described first kind in this utility model: the carbohydrate of generation is transported to plant rhizosphere by photosynthesis by (1), carbon source is provided, thus maintaining the microbial activity that rhizosphere is vigorous for the microorganism in adsorption layer;(2) wetland plant 1 by the tissue conveying oxygen of hollow to root system, plant layer 2 for first kind and described second kind plant layer 5 aerobic environment be provided; Plant layer 2 and described second kind of wetland plant planted in layer 51 can absorb the nitrogen in sewage for (3) first kinds, reach the purpose denitrogenated; (4) rainwash is slowed down, it is prevented that soil erosion.
Preferably, described first adsorption layer 3 is the thickness zeolite layer at 40��60cm, and described second adsorption layer is parallel to domatic setting, and thickness is also 40��60cm. Ammoniacal nitrogen is had extremely strong Selective adsorption by zeolite, but can not as the final approach removing ammoniacal nitrogen. Owing to zeolite has huge specific surface area, it it is a kind of desirably microbe carrier, Ammonifying bacteria and and nitrobacteria using zeolite as carrier, the nitrogenous class material in area source pollutants is circulated decomposition and converts, it is to avoid the problems such as adsorbing material is saturated, dirt-removing power is not lasting.
In this utility model, plantation layer is carbon source and the aerobic environment that adsorption layer provides abundance, therefore adsorption layer and be easily formed the microbiologic population taken as the leading factor with Ammonifying bacteria and nitrobacteria, and reproduction speed is fast. When the nitrogenous organic pollution of little molecule in plantation layer and ammoniacal nitrogen leaching are to after adsorption layer, nitrogenous for little molecule organic pollution second time is decomposed and is converted into ammoniacal nitrogen rapidly by the microbes in adsorption layer, these ammoniacal nitrogens can quickly be adsorbed the zeolite adsorption in layer and fixing, is converted into nitrate nitrogen (NO by nitrobacteria subsequently3N). Nitrate nitrogen may proceed to downward leaching, is under anaerobic easily formed the microbiologic population taken as the leading factor with denitrifying bacteria, and the nitrate nitrogen that leaching gets off is converted into nitrogen under the effect of denitrifying bacteria, reaches the purpose denitrogenated.
Further, described second adsorption layer includes the second zeolite layer 6 and cobblestone layer 7, and described second zeolite layer 6 is arranged with cobblestone layer 7 vertical spacing.
As shown in Figure 1, in the present embodiment, it is domatic that described level 2 buffering reaction tank is positioned at lake, river, it is made up of three independent reaction tanks, laying one layer of impermeable stratum between any two of which independent reaction pond, it is identical that plant that layer 5 and described first-level buffer reaction tank mention first kind of second kind in level 2 buffering reaction tank plants layer 2, each parallel to domatic, and in the same plane, thickness is 10��30cm. Second adsorption layer of three independent reaction ponds composition is along domatic from top to bottom as the second zeolite layer 6 cobblestone layer 7 second zeolite layer 6, and each parallel to domatic, and in the same plane, thickness is 40��60cm. Second adsorption layer of level 2 buffering reaction tank and second kind plant one layer of GSZ 4 of laying between layer 5, and second kind of soil planting layer 5 can be had reinforcement and strengthen the effect of water and soil conservation by this GSZ 4.
Preferably, the side of described first adsorption layer 3, the side of described second zeolite layer 6, described cobblestone layer 7 side be equipped with impermeable stratum, described impermeable stratum is geomembrane. Arranging impermeable stratum, to enable to flow direction in first-level buffer reaction tank and level 2 buffering reaction tank be the A direction shown in Fig. 1, promotes clean-up effect.
In end of the present utility model and water surface contact portion, traditional gabion shore protection 8 method is adopted to construct. Acting as of gabion shore protection 8: the water body after the purification of (1) water conservancy diversion denitrification layer enters water body; (2) prevent from corroding, it is prevented that river course flowing water washes away.
This utility model is by arranging at least one first-level buffer reaction tank on the coast, on domatic, at least one level 2 buffering reaction tank is set, making area source pollutants first pass around first-level buffer reaction tank, the bulky grain pollutant in the sewage of source, opposite carry out being detained and sufficient biochemical reaction. Therefore, first-level buffer reaction tank can significantly reduce the blocking of the domatic substrate in lake, river and the scrubbing load of level 2 buffering reaction tank; It is domatic that level 2 buffering reaction tank is positioned at lake, river, is possessing outside all of function of first-level buffer reaction tank, additionally it is possible to improves the water and soil conservation ability that lake, river is domatic.
Finally should be noted that: above example is only in order to illustrate that the technical solution of the utility model is not intended to limit;Although this utility model being described in detail with reference to preferred embodiment, those of ordinary skill in the field are it is understood that still can modify to detailed description of the invention of the present utility model or portion of techniques feature carries out equivalent replacement; Without deviating from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope that this utility model is claimed.

Claims (10)

1. the ecological revetment purifying area source pollutants, it is arranged on first-level buffer reaction tank on the bank including at least one, at least one be arranged on domatic on level 2 buffering reaction tank, it is arranged on the bank and is positioned at the timber outside described first-level buffer reaction tank, it is arranged on gabion shore protection (8) that is domatic and that contact with the water surface, it is characterized in that: described first-level buffer reaction tank include arranging top layer on the bank first kind is planted layer (2) and be arranged on described first kind of first adsorption layer (3) planted under layer (2), described level 2 buffering reaction tank include being arranged on domatic top layer second kind plants layer (5), it is arranged on described second kind of second adsorption layer planted under layer (5), it is arranged on described second kind of GSZ (4) planted between layer (5) and described second adsorption layer.
2. ecological revetment according to claim 1, it is characterised in that: described first kind plant layer (2) and described second kind plant upper kind of layer (5) and be implanted with wetland plant (1).
3. ecological revetment according to claim 1, it is characterised in that: described first kind plant between layer (2) and described first adsorption layer (3), described second kind plant and be equipped with geotextiles between layer (5) and described second adsorption layer.
4. ecological revetment according to claim 1, it is characterised in that: plant layer (2) and described second kind of bottom planting layer (5) is provided with geotextiles for described first kind.
5. ecological revetment according to claim 4, it is characterised in that: described first adsorption layer (3) is the thickness zeolite layer at 40��60cm.
6. ecological revetment according to claim 1, it is characterized in that: described second adsorption layer includes the second zeolite layer (6) and cobblestone layer (7), and described second zeolite layer (6) is arranged with cobblestone layer (7) vertical spacing.
7. ecological revetment according to claim 6, it is characterised in that: the side of described first adsorption layer (3), the side of described second zeolite layer (6), described cobblestone layer (7) side be equipped with impermeable stratum.
8. ecological revetment according to claim 7, it is characterised in that: described impermeable stratum is geomembrane.
9. ecological revetment according to claim 2, it is characterised in that: described first kind plant layer (2) and described second kind plant layer (5) each parallel to ground arrange, thickness is 10��30cm.
10. ecological revetment according to claim 6, it is characterised in that: described second adsorption layer is parallel to domatic setting, and thickness is 40��60cm.
CN201521129638.1U 2015-12-30 2015-12-30 Purify ecological embankment of non -point source pollution thing Active CN205294972U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105645592A (en) * 2015-12-30 2016-06-08 北京东方利禾景观设计有限公司 Ecological bank revetment for purifying non-point pollutants

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105645592A (en) * 2015-12-30 2016-06-08 北京东方利禾景观设计有限公司 Ecological bank revetment for purifying non-point pollutants

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