CN210945029U - Multistage ecological bank protection clean system - Google Patents
Multistage ecological bank protection clean system Download PDFInfo
- Publication number
- CN210945029U CN210945029U CN201921721597.3U CN201921721597U CN210945029U CN 210945029 U CN210945029 U CN 210945029U CN 201921721597 U CN201921721597 U CN 201921721597U CN 210945029 U CN210945029 U CN 210945029U
- Authority
- CN
- China
- Prior art keywords
- layer
- ecological
- bank protection
- level
- planting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Revetment (AREA)
Abstract
The utility model discloses a multi-stage ecological bank protection purification system, which comprises a first-stage ecological bank protection and a second-stage ecological bank protection which are closely connected and have the heights reduced in sequence from the direction far away from a river channel to the direction close to the river channel, wherein N is a positive integer not less than 2; each level of ecological bank protection is provided with a planting layer and a substrate layer, the planting layer is arranged above the substrate layer, and plants are planted on the planting layer; the planting layer is made of planting soil, and the matrix layer is made of sandy soil and broken stones; and the adjacent ecological revetments of each level are communicated through a water outlet pipe, the water outlet pipe is horizontally inserted into the matrix layer, and a distance is arranged between the water outlet end of the water outlet pipe in the N-1 level ecological revetments and the planting layer of the N level ecological revetments in the vertical direction. In this way, the utility model discloses can realize the nitrogen and phosphorus removal effect to the rainwater, improve the purification performance to runoff rain sewage.
Description
Technical Field
The utility model relates to a river bank purifies technical field, especially relates to a multistage ecological bank protection clean system.
Background
At present, water bodies such as lakes, rivers and the like in China are polluted to different degrees, and mainly non-point source pollution is taken as a main pollution. Due to the application of various nitrogen scale fertilizers in the agricultural production process, a large part of nitrogen scale fertilizers enter a river channel through ground runoff, so that the water body of the river channel is eutrophicated; the sewage of poultry and animal husbandry is discharged in a non-organized way, and the water quality of the water body is deteriorated after the pollutants enter the water body.
In order to protect and manage natural riparian zones and restore and rebuild riparian zones seriously damaged by human activities, the construction of ecological revetments is a modern river regulation development trend. At present, the bank protection engineering in China also begins to develop towards ecotype, the vegetation bank protection is combined with other types of bank protection, and various ecotype bank protection is formed in consideration of beautifying the environment, improving the water quality and the like. The common ecological bank protection modes at present mainly comprise gabion bank protection, three-dimensional geonet pad bank protection, geogrid stone pad, medium screen bank protection, ecological concrete bank protection, chain lock type ecological brick bank protection, planting groove bank protection and the like.
Although China adopts the bank protection method to renovate the river and lake side slope, certain achievements are obtained, and some problems are found at the same time. For example: due to space limitation, part of the revetment is vertically hardened in the conventional river channel, ecological reconstruction is difficult, and the river channel runoff rainwater sewage entering the conventional river channel has no purification function; the partial ecological bank protection structure is mainly suitable for a slope type bank protection structure with a wide river channel construction site, occupies a large area, and increases the construction difficulty and cost; the capabilities of intercepting and degrading pollutants and hydraulic load are generally low, and the capabilities of collecting and purifying the urban rainfall runoff non-point source pollution are also weak.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a multistage ecological bank protection clean system, can realize improving the purification performance to runoff rain sewage to the nitrogen and phosphorus removal effect of rainwater.
In order to achieve the above object, the technical solution of the present invention is:
a multi-stage ecological revetment purification system comprises a first-stage ecological revetment, a second-stage ecological revetment and an N + 1-stage ecological revetment, wherein the first-stage ecological revetment and the second-stage ecological revetment are closely connected and are sequentially reduced in height from a direction far away from a river channel to a direction close to the river channel, and N is a positive integer not less than 2;
each level of ecological bank protection is provided with a planting layer and a substrate layer, the planting layer is arranged above the substrate layer, and plants are planted on the planting layer; the planting layer is made of planting soil, and the matrix layer is made of sandy soil and broken stones;
and the adjacent ecological revetments of each level are communicated through a water outlet pipe, the water outlet pipe is horizontally inserted into the matrix layer, and a distance is arranged between the water outlet end of the water outlet pipe in the N-1 level ecological revetments and the planting layer of the N level ecological revetments in the vertical direction.
Preferably, the lateral wall of each grade of ecological embankment all is provided with the hole of crossing water, it is in to cross the hole setting the top on planting the layer.
Preferably, trees are planted on the planting layer in the first-level ecological bank protection, shrubs are planted on the planting layer in the Nth-level ecological bank protection, and herbaceous plants are planted on the planting layer in the (N + 1) th-level ecological bank protection.
Preferably, the matrix layer includes sand soil layer and metalling, sand soil layer's material is sand, the material on metalling is the rubble, the thickness on metalling is greater than sand soil layer's thickness.
Preferably, a communicating pipe is arranged in a planting layer in the N +1 th-level ecological bank protection, a long-strip-shaped water absorption strip is arranged in the communicating pipe, one end of the water absorption strip is embedded in the planting layer in the N +1 th-level ecological bank protection, the other end of the water absorption strip stretches into the water surface of the river channel, and the water absorption strip is made of cotton or hemp.
Preferably, the side wall and the top of the water outlet pipe are uniformly provided with small holes.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model has the following beneficial effect:
the multi-stage ecological bank protection purification system can effectively ensure the purification effect of rainwater before entering a river channel, integrates a plant system, an animal system and a microbial system, and can realize multiple functions of ecological system stability, rainwater purification, landscape greening, animal inhabitation space and the like. The water outlet pipe is vertically distant from the substrate layer of the next ecological bank protection stage by stage, so that rainwater falls down and is naturally oxygenated, and meanwhile rainwater is ensured to enter the substrate layer to complete corresponding aerobic, facultative and anaerobic processes, so that the effects of denitrification and dephosphorization of rainwater can be realized, and the purification function of runoff rainwater sewage is improved.
Drawings
Fig. 1 is a schematic structural diagram of the multi-stage ecological bank protection purification system of the present invention.
Description of reference numerals:
first order ecological revetment 1, second level ecological revetment 2, third level ecological revetment 3, planting layer 4, sand and soil layer 5, metalling 6, outlet pipe 7, cross water hole 8, communicating pipe 9, absorb water strip 10, river course 11, curb 12.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Referring to the attached drawings, the multi-stage ecological revetment purification system comprises a first-stage ecological revetment 1, a second-stage ecological revetment 2, an Nth-stage ecological revetment and an N + 1-stage ecological revetment, wherein the first-stage ecological revetment 1, the second-stage ecological revetment 2 and the height of the first-stage ecological revetment are closely connected and are sequentially reduced from far away from a river channel 11 to near the river channel 11, and N is a positive integer not less than 2. Namely, the multi-stage ecological bank protection purification system at least comprises three stages of ecological bank protection to realize a comprehensive ecological system, and the multi-stage ecological bank protection system is a product of the river engineering subject development to a relatively high-grade stage and is a demand of modern people for harmonious with nature. Not only can form the harmonious river course 11 view with the surrounding environment, strengthen the continuity of bank animal and plant habitat, and for people rest, amusement provides good place, has promoted the taste in whole city.
Each level of ecological revetment is provided with a planting layer 4 and a matrix layer, the planting layer 4 is arranged above the matrix layer, and the sequential reduction of the heights can be understood as that the matrix layer of the first level of ecological revetment 1 is higher than the planting layer 4 of the second level of ecological revetment 2.
Plants are planted on the planting layer 4, trees can be planted on the planting layer 4 in the first-level ecological bank protection 1, shrubs are planted on the planting layer 4 in the Nth-level ecological bank protection, and herbaceous plants are planted on the planting layer 4 in the (N + 1) th-level ecological bank protection. Arbor, shrub and grass are respectively selected as plants of different levels of ecological revetments, and the plants transmit oxygen to root systems through hollow tissues to provide an aerobic environment for a planting layer 4 in the whole system; the staggered plant space arrangement constructs a good ecological landscape, and provides leisure places and beautiful enjoyment for nearby residents. Multiple functions such as ecological system stability, rainwater purification, landscape greening, animal inhabitation space and the like can be realized through the arbor-shrub-grass plant system.
The planting layer 4 in the first-level ecological revetment 1 and the second-level ecological revetment 2. The matrix layer is made of sand and gravel. The matrix layer includes sand soil layer 5 and metalling 6, and the material of sand soil layer 5 is sand, and the material of metalling 6 is the rubble, and the thickness of metalling 6 is greater than the thickness of sand soil layer 5. Planting soil, sandy soil, broken stones and the like are selected as fillers, the planting soil is used as a substrate for plant growth, surface runoff is slowed down, and water and soil loss is prevented; the sand and the gravels have better hydraulic transmission effect, the surface is easy to form a biological film, the materials are convenient to obtain, and the method is economical and applicable.
The mixed matrix is a solid mixture which comprises straws, fermented sludge, wood chips, vermiculite and fermented excrement in a weight ratio of 1:1:1.5:0.2: 0.2. Wherein, the particle size of the vermiculite can be selected to be 1 cm-2 cm, and the water content of the fermented sludge is 40% -60%. Realize animal system + microbial system through mixing matrix, collect plant system, animal system and microbial system in an organic whole to can effectively guarantee the purifying effect before the rainwater gets into river course 11.
The mixed matrix also comprises earthworms, and the density of the earthworms in the mixed matrix is 40 to 50 per cubic meter. The earthworms are introduced into the mixed matrix layer, the earthworms and the microorganisms have a synergistic symbiotic effect in a biological treatment system, and the earthworm cast also provides a good survival matrix for the growth and the propagation of the microorganisms. The earthworms move up and down in the foraging process, play a role in loosening the filler, keep a good ventilation environment and facilitate the further degradation of pollutants.
Communicating pipes 9 are arranged in the planting layer 4 in the (N + 1) th-level ecological revetment, strip-shaped water absorbing strips 10 are arranged in the communicating pipes 9, and the water absorbing strips 10 are made of cotton or hemp. One end of the water absorbing strip is embedded in a planting layer in the N +1 th-level ecological bank protection, and the other end of the water absorbing strip extends into the water surface of the river channel. The N +1 th ecological bank protection is an ecological bank protection directly communicated with the river channel 11, and the capillary water absorption strips 10 automatically absorb water and transmit the water to the matrix layer in the N +1 th ecological bank protection to keep the wet state of the mixed matrix layer, so that the normal life activities of earthworms introduced into the matrix layer are ensured.
The adjacent ecological revetments of each level are communicated through a water outlet pipe 7, the water outlet pipe 7 is horizontally inserted into the matrix layer, and a distance is arranged between the water outlet end of the water outlet pipe 7 in the N-1 level ecological revetments and the planting layer 4 of the N level ecological revetments in the vertical direction. Through the vertical distance, the rainwater falls step by step and is naturally oxygenated in the process that the rainwater flows from the water outlet pipe 7 to the Nth-level ecological bank protection from the Nth-1 th-level ecological bank protection, and meanwhile, the rainwater is ensured to enter the matrix layer to complete corresponding aerobic, facultative and anaerobic processes, so that the denitrification and dephosphorization effects on the rainwater can be realized.
The outlet pipe 7 plays the effect of collecting the rainwater simultaneously, can evenly set up the aperture at the lateral wall of outlet pipe 7 and top, and the aperture is the through-hole, is convenient for filter the effective collection of back rainwater to can keep the moisture content on matrix layer.
The lateral wall of each level ecological revetment all is provided with water hole 8, crosses water hole 8 and sets up in the top of planting layer 4, and unnecessary rainwater can directly get into the ecological revetment of one-level down through water hole 8 like this, not only alleviates the rainwater to the impact of ecological revetment, avoids the plant to submerge for a long time in the rainwater and is unfavorable for vegetation moreover to help exerting the purification and the ecological landscape function of revetment.
Taking N as an example, namely taking the multistage ecological revetment purification system comprising three stages of ecological revetments as an example: rainwater enters a first-stage ecological bank protection 1 through surface runoff and curb stones 12, the first-stage ecological bank protection 1 is divided into three layers from top to bottom, namely a planting soil layer with the thickness of 80 cm-100 cm, a sandy soil layer with the thickness of 10cm and a gravel layer 6 with the thickness of 20cm, and arbors are planted. The planting soil layer provides a stable attachment surface for the growth of microorganisms and provides carriers and nutrient substances for arbors. First order ecological bank protection 1 can filter the earth in the rivers, makes it deposit and fills into the matrix layer, and then promotes the growth of arbor, and on the other hand, the rainwater that gets into first order ecological bank protection 1 makes organic pollutant concentration reduce in the rainwater through the purification of arbor root system and the filtering action on matrix layer. Arrange outlet pipe 7 in the metalling 6, and outlet pipe 7 both sides and the even aperture of opening in top, the effective collection of the rainwater after being convenient for filter, the rainwater of collecting directly gets into second level ecological bank protection 2. Under the condition of normal rainfall, rainwater entering the first-stage ecological bank protection 1 through the kerbstone 12 is purified through the multilayer matrix and flows into the second-stage ecological bank protection 2 through the water outlet pipe 7; if the torrential rain comes, unnecessary rainwater can directly get into second level ecological bank protection 2 through water hole 8, not only alleviates the rainwater and to the impact of bank protection, reduces the chance that the arbor submerges in the rainwater for a long time moreover, helps the better performance bank protection of first order ecological bank protection 1 and ecological function.
The second-level ecological bank protection 2 is divided into three layers from top to bottom, wherein the three layers are a planting soil layer with the thickness of 30 cm-40 cm, a sandy soil layer 5 with the thickness of 10cm and a rubble layer 6 with the thickness of 20cm, and shrubs are planted. Rainwater in the water outlet pipe 7 of the first-stage ecological bank protection 1 and primary rainwater in the water hole 8 directly enter the second-stage ecological bank protection 2, and the concentration of pollutants in the rainwater is further reduced through the purification of a shrub root system and the filtering action of the matrix layer. Similar with first order ecological bank protection 1, arrange outlet pipe 7 in 2 bottom matrix layers (metalling 6) of second order ecological bank protection, the aperture is evenly opened at outlet pipe 7 both sides and top, is convenient for purify the effective collection of back rainwater, and the rainwater of collecting directly gets into third level ecological bank protection 3. During rainstorm or long-time rainwater weather, redundant rainwater can directly enter the third-level ecological revetment 3 through the water hole 8.
The third-level ecological bank protection 3 is divided into three layers from top to bottom, namely a mixed matrix layer with the thickness of 20 cm-30 cm, a sandy soil layer 5 with the thickness of 10cm and a crushed stone layer 6 with the thickness of 20cm, and herbaceous plants are planted. The mixed matrix layer is formed by the mixture of agricultural straws (with the length of 1 cm-2 cm), fermented sludge (with the water content of 40% -60%) of an urban sewage treatment plant, crushed wood chips (with the maximum length of 2 cm-3 cm), vermiculite (with the length of 1 cm-2 cm), fermented animal manure (with the weight ratio of 1:1:1.5:0.2: 0.2) and the like. And the earthworms are introduced into the matrix layer, when the earthworms are introduced for the first time, the density is 40-50 pieces/cubic meter, and under the normal condition, food is not required to be added to the earthworms, and the food is organic matters in the sewage. In order to ensure the normal function of the earthworms under the drought condition, a pipeline is arranged in the mixed matrix layer and is directly communicated with river water, a water-absorbable cotton sliver is placed in the pipeline, and the cotton sliver automatically absorbs water and transmits the water to the mixed matrix layer. After rainwater enters the third-stage ecological bank protection 3, the rainwater sequentially passes through the three filter material layers, suspended matters are intercepted, part of pollutants in the rainwater is used for providing nutrients for the growth of herbs, part of pollutants is decomposed by a biological film in the matrix layer, and the other part of pollutants is used as earthworm food for decomposition. The purified rainwater is collected by the water outlet pipe 7 of the rubble layer 6 and then discharged into the river channel 11. Like the ecological shore protection of preceding two-stage, third level ecological shore protection 3 sets up water hole 8 with the river course 11 junction, prevents that the excessive accumulation of rainwater from influencing the normal growth of herbage, hindering the normal life activity of earthworm at third level ecological shore protection 3, and then influencing its normal purification and view function.
The above is only the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.
Claims (6)
1. A multi-stage ecological bank protection purification system is characterized by comprising a first-stage ecological bank protection and a second-stage ecological bank protection which are closely connected and have sequentially reduced heights from a direction far away from a river channel to a direction close to the river channel, wherein N is a positive integer not less than 2;
each level of ecological bank protection is provided with a planting layer and a substrate layer, the planting layer is arranged above the substrate layer, and plants are planted on the planting layer; the planting layer is made of planting soil, and the matrix layer is made of sandy soil and broken stones;
and the adjacent ecological revetments of each level are communicated through a water outlet pipe, the water outlet pipe is horizontally inserted into the matrix layer, and a distance is arranged between the water outlet end of the water outlet pipe in the N-1 level ecological revetments and the planting layer of the N level ecological revetments in the vertical direction.
2. The multi-stage ecological revetment purification system of claim 1, wherein: the lateral wall of ecological shore protection of each grade all is provided with the water hole, it is in to cross the water hole setting the top on planting the layer.
3. The multi-stage ecological revetment purification system of claim 1, wherein: arbor is planted on the planting layer in the first level ecological bank protection, shrub is planted on the planting layer in the Nth level ecological bank protection, and herbaceous plant is planted on the planting layer in the (N + 1) th level ecological bank protection.
4. The multi-stage ecological revetment purification system of claim 1, wherein: the matrix layer includes sand soil layer and metalling, sand soil layer's material is sand, the material on metalling is the rubble, the thickness on metalling is greater than sand soil layer's thickness.
5. The multi-stage ecological revetment purification system of claim 1, wherein: the ecological revetment of (N + 1) th level is provided with communicating pipe in the planting layer, be provided with long banding strip that absorbs water in the communicating pipe, the strip one end that absorbs water is buried underground in the planting layer in the ecological revetment of (N + 1) th level, the strip other end that absorbs water stretches into in the river course water face, the material of strip that absorbs water is cotton or numb.
6. The multi-stage ecological revetment purification system of claim 1, wherein: the side wall and the top of the water outlet pipe are uniformly provided with small holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921721597.3U CN210945029U (en) | 2019-10-15 | 2019-10-15 | Multistage ecological bank protection clean system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921721597.3U CN210945029U (en) | 2019-10-15 | 2019-10-15 | Multistage ecological bank protection clean system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210945029U true CN210945029U (en) | 2020-07-07 |
Family
ID=71372190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921721597.3U Active CN210945029U (en) | 2019-10-15 | 2019-10-15 | Multistage ecological bank protection clean system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210945029U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110589980A (en) * | 2019-10-15 | 2019-12-20 | 星景生态环保科技（苏州）有限公司 | Multistage ecological bank protection clean system |
-
2019
- 2019-10-15 CN CN201921721597.3U patent/CN210945029U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110589980A (en) * | 2019-10-15 | 2019-12-20 | 星景生态环保科技（苏州）有限公司 | Multistage ecological bank protection clean system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102296567B (en) | Soft isolation zone method for slope protection at bank zone and surface source pollution control | |
| CN101078205A (en) | Reservoir bank ecological protection system | |
| CN110862152B (en) | High-efficiency ecological purification system for farmland drainage | |
| WO2014161108A1 (en) | Method for carbon sequestration by planting, harvesting and landfilling fast-growing herbaceous plants | |
| CN105000748B (en) | Typical agricultural non -point pollution thing " point-line-surface " comprehensively cuts control system | |
| CN109083112A (en) | It is a kind of for reducing the ecological canal of paddy field contaminants in drainage | |
| CN206089200U (en) | Farmland benthophyte ecological ditch canal | |
| CN109399800B (en) | River and lake runoff pollution cascade control system | |
| CN106702980A (en) | Building method for farmland ecological drainage ditch preventing ditch wall soil loss | |
| CN104310592B (en) | A kind of northern area enters river, exit of a lake shunting purification artificial wet land treating system | |
| KR100775985B1 (en) | Material for afforesting incline and incline afforesting structure having the same | |
| CN104094692B (en) | A kind of biological carbon reducing sloping upland pollution of area source improves the method for ecological ridge | |
| Tousignant et al. | Guidance manual for the design, construction and operations of constructed wetlands for rural applications in Ontario | |
| CN105923783B (en) | A kind of land disposal method and system of high-efficient denitrification and dephosphorization | |
| CN106865777A (en) | A kind of lake view water body early-stage rainwater groundwater pollution control | |
| CN210945029U (en) | Multistage ecological bank protection clean system | |
| CN2928836Y (en) | Plant bed type waste water resource treating system | |
| CN113136920A (en) | Rainwater collection system | |
| CN112482411A (en) | River course ecological slope protection and construction method thereof | |
| CN110589980A (en) | Multistage ecological bank protection clean system | |
| CN106665101A (en) | Rainwater garden system used for community rainwater diversion, peak clipping and ecological purification | |
| CN206070498U (en) | A kind of farmland submerged plant ecological canal for processing early-stage rainwater | |
| CN210562551U (en) | Farmland ecological pond for reducing agricultural non-point source pollution | |
| CN112062280B (en) | Combined trapezoidal ecological ditch | |
| CN212864277U (en) | Novel ecological revetment combining constructed wetland construction with ecological net cage planting by imitating wood piles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |