CN210945239U - Ecological drought island suitable for intermittent type nature cutoff river course - Google Patents
Ecological drought island suitable for intermittent type nature cutoff river course Download PDFInfo
- Publication number
- CN210945239U CN210945239U CN201921415398.XU CN201921415398U CN210945239U CN 210945239 U CN210945239 U CN 210945239U CN 201921415398 U CN201921415398 U CN 201921415398U CN 210945239 U CN210945239 U CN 210945239U
- Authority
- CN
- China
- Prior art keywords
- microorganism
- planting
- cutoff
- layer
- anaerobic
- 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
Abstract
The utility model discloses an ecological drought island suitable for intermittent type nature cutoff river course, include: the device comprises an outer frame, a planting filter layer and an immobilized microorganism component; the planting filter layer is planted with the hygrophytes and is arranged in the outer frame, and the immobilized microorganism component is arranged in the planting filter layer; the immobilized microorganism assembly comprises a fixed frame and microorganism plate units, the microorganism plate units are arranged in the fixed frame and comprise aerobic microorganism plates and anaerobic microorganism plates, the aerobic microorganism plates are arranged above the anaerobic microorganism plates, and gaps are formed between the aerobic microorganism plates and between the anaerobic microorganism plates. In this way, the utility model discloses can improve river course ecological environment, increase biological diversity and view effect, the range of application is wide, is particularly useful for the waters that the water level variation is frequent, the normal outage flows. The device is suitable for an aerobic/anaerobic alternative environment caused by natural change of the water level of a normally-interrupted riverway, and the water quality is purified by the synergistic effect of aerobic microorganisms and anaerobic microorganisms.
Description
Technical Field
The utility model relates to a river course ecological remediation technical field especially relates to an ecological drought island suitable for intermittent type nature cutoff river course.
Background
In recent years, due to the acceleration of the urbanization process of China, excessive sewage discharge in the urban industry, rural domestic sewage, agricultural chemical fertilizers and pesticides are used in large quantities, the water quality of rivers is seriously polluted, black and odorous water is formed in local areas, not only is extremely poor sensory experience brought to the masses, but also the production and the life of the masses are directly influenced, and the river pollution becomes a very serious environmental problem.
The technology for specifically treating the black and odorous water body is clear in the urban black and odorous water body treatment work guide compiled by ministry of environmental protection, water conservancy and agriculture in 2015 ministry of urban and rural construction of housing, and mainly comprises a source control and pollution interception technology, an internal source treatment technology, an ecological restoration technology and other treatment measures. The ecological floating island technology is one of river ecological restoration technologies, and the working mechanism of the ecological floating island is as follows: the strong root system of the aquatic plant on the floating island absorbs substances such as nitrogen, phosphorus and the like in the water body, the absorbed substances such as nitrogen, phosphorus and the like can become components of the plant body or can be converted into carbon dioxide and water through metabolism and mineralization, and meanwhile, the root system can release secretions for degrading organic matters to promote water body purification. The abundant root system of the aquatic plant can provide a good living environment for microorganisms, and can be used as a biomembrane carrier to improve the purification efficiency; some aquatic plants can secrete chemical substances for inhibiting the growth of algae, and the aquatic plants, animals and microorganisms have comprehensive effects of absorbing, adsorbing, degrading and the like on the heavy metals in the enriched water body, so that a good ecological system is finally formed, the environment is beautified, and a landscape effect is created for a river channel.
At present, the ecological floating island is designed to float on the water surface, and is rarely directly arranged on the riverbed at the bottom of the riverway. Due to the reasons of poor water resources, uneven water resource space-time distribution, less rainfall, insufficient supply water, unfavorable development and utilization of water resources and the like, the situation of cutoff often occurs, particularly in arid areas, the cutoff range is continuously enlarged, the cutoff frequency and duration are continuously increased, the cut-off riverbed is directly and unemployingly leaked, the bottom mud releases peculiar smell, aquatic organisms in the river are reduced, the landscape effect of the river is influenced, and a plurality of pollutants are accumulated after the exposure time is longer, so that the water quality of the river is polluted when water comes, and the ecological environment is further influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides an ecological drought island suitable for intermittent type nature cutout river course can build and locate river course bottom river bed, when the river course cutout, resumes river course ecological landscape when purifying the bed mud, and when the river course came water, does not influence the water and flows, and stays some water resources, carries out high-efficient purification to river course quality of water.
In order to achieve the above object, the technical solution of the present invention is:
an ecological drought island suitable for intermittent cutoff riverway, comprising: the device comprises an outer frame, a planting filter layer and an immobilized microorganism component;
the planting filter layer is planted with hygrophytes, the planting filter layer is arranged in the outer frame, and the immobilized microorganism component is arranged in the planting filter layer;
the immobilized microorganism subassembly is including fixed frame and microorganism board unit, the microorganism board unit sets up in the fixed frame, the microorganism board unit includes aerobic microorganism board and anaerobic microorganism board, set up on the aerobic microorganism board the top of anaerobic microorganism board, between the aerobic microorganism board with be provided with the space between the anaerobic microorganism board.
Preferably, the outer frame is made of a gabion mesh.
Preferably, the planting filter layer comprises a planting layer and a gravel layer, the planting layer is arranged above the gravel layer, and the immobilized microorganism component is arranged between the planting layer and the gravel layer; the planting layer is made of planting soil, and the gravel layer is made of gravel.
Preferably, the thickness of the planting layer is 400 mm-600 mm, and the thickness of the gravel layer is 100 mm-200 mm.
Preferably, plant straws and tree branches are embedded in the planting soil, and the embedding density is that the proportion of the main axial sectional area of the plant straws and the tree branches embedded in the unit soil section area to the total soil section area is 0.5-10%.
Preferably, the planting layer is made of a mixture of planting soil, coarse sand and gravel, and the mixing ratio of the planting soil, the coarse sand and the gravel is 1:1: 1.
Preferably, the particle size of the coarse sand is 2 mm-5 mm, and the particle size of the broken stone is 10 mm-20 mm.
Preferably, a fixing groove is formed in the fixing frame, and the aerobic microorganism plate and the anaerobic microorganism plate are arranged in the fixing groove.
Preferably, the aerobic microbial plate comprises aerobic microbial agent powder and an immobilized carrier, and the anaerobic microbial plate is made of anaerobic microbial agent powder and an immobilized carrier.
Preferably, the immobilization carrier is a microbial material made of a mixture of agar, sodium alginate and activated carbon.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model has the following beneficial effect:
the ecological drought island is suitable for intermittent cutoff riverways, improves the ecological environment of the riverways, increases the biodiversity and the landscape effect, has wide application range, and is particularly suitable for water areas with frequent water level change and constant cutoff. The microorganisms are fixed in the fixing frame, so that the purification capacity of the drought island is enhanced, and the water is not easily washed away by water flow to influence the water quality of the downstream. The device is suitable for an aerobic/anaerobic alternative environment caused by natural change of the water level of a normally-interrupted riverway, and the water quality is purified by the synergistic effect of aerobic microorganisms and anaerobic microorganisms. The self-renewal of the matrix filling medium of the drought island is realized by utilizing the natural matrix mixed with the plant straws and the branches, and the defect that the filling medium is easy to block is overcome. The whole body is made of materials with gaps, so that the flowing of a water body is not influenced, and the flood is not hindered.
Drawings
Fig. 1 is a schematic diagram of the ecological drought island in river course suitable for intermittent cut-off river course.
Fig. 2 is a schematic diagram of an ecological drought island suitable for intermittent flow-cutoff riverway.
Fig. 3 is a schematic diagram of an immobilized microorganism module in an ecological drought island suitable for an intermittent flow-cutoff river channel.
Fig. 4 is a schematic view of another angle of the immobilized microorganism module in the ecological drought island suitable for intermittent flow-cutoff riverway of the utility model.
Description of reference numerals:
ecological drought island 1;
an outer frame 11;
a planting layer 121, a gravel layer 122, a hygrophyte 123;
a fixing frame 131, a fixing groove 1311, an aerobic microorganism plate 1321, and an anaerobic microorganism plate 1322;
a riverbed 2.
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 drawings, an ecological drought island suitable for an intermittent cutoff river channel comprises: frame, planting filter layer and immobilized microorganism subassembly.
The outer frame is used as an integral frame of the ecological drought island, wraps the planting filter layer of the ecological drought island and the immobilized microorganism assembly and plays a role in fixing the structure and the shape. The material of the outer frame can be preferably a gabion mesh which is formed by mechanically weaving high-corrosion-resistance, high-strength and malleable low-carbon steel wires or PVC-coated steel wires, so that the ecological drought island is protected for a long time due to strong scouring resistance. The size and the shape of frame are exactly the size and the shape of single ecological drought island, the utility model discloses do not inject the size and the shape of frame, actual ecological drought island size and shape can carry out rational design according to the waters area when using, and the shape can design into ellipse, petal type, rectangle etc. according to pleasing to the eye effect.
The planting filter layer is divided into two layers including a planting layer and a gravel layer, and the planting layer is arranged above the gravel layer. The thickness of the planting layer is 400 mm-600 mm, the mixture of soil and mud stone is used as a medium, and the mixture is characterized in that the planting soil: coarse sand (2 mm-5 mm): the macadam (10 mm-20 mm) is prepared in a ratio of 1:1: 1. The thickness of the gravel layer is 100 mm-200 mm, which plays a role in filtering water quality and simultaneously plays a role in supporting and balancing weight.
The planting filter layer is planted with hygrophytes, such as canna, metasequoia, regenerated flowers and other plants. One or more plant combinations are selected according to local climate, environment, water pollution degree and pollutant types, and meanwhile, landscape matching is carried out. The abundant root system of the aquatic plant can absorb substances such as nitrogen, phosphorus and the like in the water body, provide a good living environment for microorganisms, and can be used as a biomembrane carrier to improve the purification efficiency.
Plant straws and tree branches are embedded in the position 10 cm-60 cm below the surface layer of the planting soil in advance, and the tree branches and stems mixed in the plant straws are slowly degraded and matched with the straws, so that the effect of short-term and long-term eyelet formation is comprehensively considered. The diameter of the plant straw and the branches is 2 mm-20 mm, and the large-pore artificial root holes formed after the plant straw and the branches are rotten can build a developed transverse/lateral filtering network in the soil layer, so that the moisture and the oxygen are quickly conducted to the inside of the drought island soil. Meanwhile, sufficient moving space is provided for soil organisms, so that the treatment efficiency of the drought island is greatly improved, and the embedding density is that the proportion of the main axial sectional area of the plant straws and branches embedded in the unit soil section area to the total soil section area is maintained at 0.5-10%. The main shaft direction of the plant straws and the branches is parallel to the flow direction of the river channel.
The rhizomes or root systems of the plants planted on the surface layer of the planting soil are 'live root holes', and 'dead root holes' are formed after the rhizomes or root systems die and decay to supplement the artificial root holes which are buried in advance. The continuous update of artificial and natural root holes is formed, the self-update of the matrix packing medium of the drought island is realized, and the defect that the packing medium constructed by common manpower is easy to block is overcome. Meanwhile, the ecological drought island is built on the riverbed, river bottom sludge of the original riverbed is utilized to play a role in slowly releasing fertilizer, nutrient substances are gradually released, the nutrient requirements of plant growth and rhizosphere microorganism breeding at the early stage of the drought island construction are met, and the function of purifying bottom sludge is played.
The immobilized microorganism assembly is arranged in the planting filter layer and is positioned between the planting layer and the gravel layer. The immobilized microorganism assembly comprises a fixing frame and a microorganism plate unit, and the microorganism plate unit is arranged in the fixing frame. A fixing groove is arranged in the fixing frame, and the immobilized microorganism assembly is arranged in the fixing groove. The fixing frame is a rectangular frame with holes made of PE materials, and plays a role in supporting and suspending the internal microorganism plate.
The microorganism board unit includes aerobic microorganism board and anaerobic microorganism board, sets up the top at anaerobic microorganism board on the aerobic microorganism board. Good oxygen microorganism board and anaerobic microorganism board set up in the fixed slot, and 3 ~ 4 good oxygen microorganism boards or anaerobic microorganism boards are installed to every fixed frame, and good oxygen microorganism board and anaerobic microorganism board set up in the fixed slot to this guarantee leaves certain space between the good oxygen microorganism board and between the anaerobic microorganism board, increases the area of contact of microorganism and water. Water flows through the immobilized microorganism module through perforations in the fixed frame. Aerobic microorganisms are placed on the aerobic microorganism plates, and anaerobic microorganisms are placed on the anaerobic microorganism plates. Both aerobic and anaerobic microorganism plates are formed by mixing microbial agent powder and immobilized carriers (agar, sodium alginate and activated carbon) to obtain a microbial material block which is formed by primary fixation and extrusion, and then carrying out cross-linking reaction. Wherein, the mixed microbial agent powder in the aerobic microbial plate is aerobic microbial agent powder, and the mixed microbial agent powder in the anaerobic microbial plate is anaerobic microbial agent powder.
The immobilized microorganism component mainly removes most pollutants in a water body by utilizing immobilized reinforced microorganisms, when a river is cut off, the ecological drought island is directly contacted with the air, the oxygen is sufficient, and the aerobic microorganisms are active to play a main role; when rivers come, the immobilized microorganism component is under the water surface, and anaerobic microorganisms play a main role, and the immobilized microorganisms are respectively carried out in aerobic and anaerobic environments and are matched with each other to remove part of pollutants in the water body. The immobilized microorganism component is a technology for immobilizing microorganisms into a fixed shape when being placed in sewage, and the microorganisms do not lose activity and have good sewage treatment effect.
The ecological drought island is directly built at the bottom of a river channel, the bottom of a planting filter layer and a gravel layer in the ecological drought island are buried in a riverbed, and the plant growth can be maintained by utilizing nutrient substances in bottom mud of the river channel, so that the purpose of bottom mud purification is achieved. In dry seasons or when the water level is low, the immobilized microorganism component is exposed to provide oxygen for aerobic microorganisms to propagate and grow, and pollutants in water are converted, and meanwhile, the landscape beautifying effect is achieved during the period of exposed river bottom; in rainy season or when the water level is higher, water overflows the immobilized microorganism component, the microorganisms are in an anaerobic environment, and anaerobic microorganisms play a main role to achieve the aim of purifying the water body. The planting filter layer utilizes artificial root holes formed by rotting of natural straws and branches of trees as a filtering and conducting medium, so that energy consumption is saved, and self-renewal of the filler can be realized. The miniature animals at the river bottom can live in the dry island, so that a habitat is provided for the aquatic animals, and the ecological environment of the river channel is improved while the biodiversity is increased.
The ecological drought island with immobilized microorganism, natural filtration matrix and plant purification combined structure has the advantages of small ecological risk, simple and convenient operation, difficult blockage, stable treatment effect and the like, can meet the water purification requirement when the water body of a river channel changes, can beautify the landscape environment, improve the sediment of the river channel and increase the biodiversity.
In the actual use process, a plurality of ecological drought islands can be placed in one river channel, the height of a single ecological drought island is 0.6-0.8 m, and the area and the shape can be designed according to the area of a water area. The outer layer gabion net outer frame wraps the drought island planting filter layer into a whole, and the bottom of the drought island planting filter layer is fixed at the bottom of a river bed or a pond. The bottom layer of the planting filter layer is supported by gravels, and the thickness of the gravels is 20 cm. Install 2 layers of immobilized microorganism subassemblies in the vertical direction in upper soil and mud stone mixture, anaerobic microorganism board is placed to the lower floor, and aerobic microorganism board is placed to the upper strata. Multiple groups of immobilized microorganism modules are arranged along the river direction (as shown by arrows in figure 1), and each immobilized microorganism module has the size of 40cm in length, 20cm in width and 10cm in height. In order to ensure that the number of microorganisms in the water body is maintained at a higher level so as to ensure the purification effect of the water body, the immobilized microorganism plate is periodically injected with the number of microorganisms. Uniformly paving planting soil and mud-rock mixture around the immobilized microorganism component, wherein the mixture is characterized in that soil: coarse sand (2 mm-5 mm): the macadam (10 mm-20 mm) is prepared in a ratio of 1:1: 1. Plant straws and branches are pre-embedded at the position 10 cm-60 cm below the surface layer of the planting filter layer, the diameters of the plant straws and the branches are 2-20mm, artificial root holes formed by rotting of natural straws and the branches are used as filtering and conducting media, energy consumption is saved, and self-renewal of fillers can be realized. Planting canna, metasequoia, regenerated flower and other plants on the surface layer of the planting soil, and selecting one or more plant combinations according to local climate and environment. During the operation of the drought island, plant litter is regularly removed, and plants can be harvested if necessary to take away pollutants enriched in the plants.
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 (10)
1. An ecological drought island suitable for intermittent cutoff riverway, comprising: the device comprises an outer frame, a planting filter layer and an immobilized microorganism component;
the planting filter layer is planted with hygrophytes, the planting filter layer is arranged in the outer frame, and the immobilized microorganism component is arranged in the planting filter layer;
the immobilized microorganism subassembly is including fixed frame and microorganism board unit, the microorganism board unit sets up in the fixed frame, the microorganism board unit includes aerobic microorganism board and anaerobic microorganism board, set up on the aerobic microorganism board the top of anaerobic microorganism board, between the aerobic microorganism board with be provided with the space between the anaerobic microorganism board.
2. The ecological drought island suitable for the intermittent flow-cutoff river channel of claim 1, wherein: the outer frame is made of a gabion mesh.
3. The ecological drought island suitable for the intermittent flow-cutoff river channel of claim 1, wherein: the planting filter layer comprises a planting layer and a gravel layer, the planting layer is arranged above the gravel layer, and the immobilized microorganism component is arranged between the planting layer and the gravel layer; the planting layer is made of planting soil, and the gravel layer is made of gravel.
4. The ecological drought island suitable for the intermittent flow-cutoff river channel of claim 3, wherein: the thickness of the planting layer is 400 mm-600 mm, and the thickness of the gravel layer is 100 mm-200 mm.
5. The ecological drought island suitable for the intermittent flow-cutoff river channel of claim 3, wherein: plant straws and tree branches are embedded in the planting soil, and the embedding density is that the proportion of the main axial sectional area of the plant straws and the tree branches embedded in the unit soil section area to the total soil section area is 0.5-10%.
6. The ecological drought island suitable for the intermittent flow-cutoff river channel of claim 3, wherein: the planting layer is made of a mixture of planting soil, coarse sand and gravel, and the mixing ratio of the planting soil, the coarse sand and the gravel is 1:1: 1.
7. The ecological drought island suitable for the intermittent flow-cutoff river channel of claim 6, wherein: the grain size of the coarse sand is 2-5 mm, and the grain size of the broken stone is 10-20 mm.
8. The ecological drought island suitable for the intermittent flow-cutoff river channel of claim 1, wherein: the fixing frame is internally provided with a fixing groove, and the aerobic microorganism plate and the anaerobic microorganism plate are arranged in the fixing groove.
9. The ecological drought island suitable for the intermittent flow-cutoff river channel of claim 1, wherein: the aerobic microbial plate comprises aerobic microbial agent powder and an immobilized carrier, and the anaerobic microbial plate is made of anaerobic microbial agent powder and an immobilized carrier.
10. The ecological drought island suitable for intermittent flow-cutoff riverway according to claim 9, wherein: the immobilized carrier is a microbial material made of a mixture of agar, sodium alginate and activated carbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921415398.XU CN210945239U (en) | 2019-08-28 | 2019-08-28 | Ecological drought island suitable for intermittent type nature cutoff river course |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921415398.XU CN210945239U (en) | 2019-08-28 | 2019-08-28 | Ecological drought island suitable for intermittent type nature cutoff river course |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210945239U true CN210945239U (en) | 2020-07-07 |
Family
ID=71394304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921415398.XU Active CN210945239U (en) | 2019-08-28 | 2019-08-28 | Ecological drought island suitable for intermittent type nature cutoff river course |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210945239U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110422967A (en) * | 2019-08-28 | 2019-11-08 | 星景生态环保科技（苏州）有限公司 | A kind of non-irrigated island of ecology suitable for Intermittent blockage river |
-
2019
- 2019-08-28 CN CN201921415398.XU patent/CN210945239U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110422967A (en) * | 2019-08-28 | 2019-11-08 | 星景生态环保科技（苏州）有限公司 | A kind of non-irrigated island of ecology suitable for Intermittent blockage river |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2020114039A1 (en) | System and method for intercepting nitrogen and phosphorus in countryside landscape type ecological ditch | |
| CN106396121B (en) | Micro-polluted river in-situ enhanced denitrification ecological floating bed device | |
| CN201406359Y (en) | Treatment device for black odor river | |
| CN105439289B (en) | A kind of micro- polluted river water ecological restoration device | |
| CN209797586U (en) | Ecological sinking bed system | |
| CN103466879A (en) | In situ purification system for city channel water body | |
| CN202322497U (en) | Multifunctional clear water carrier system | |
| CN1785849A (en) | Bio settling bed method of purifying water quality | |
| CN109761360A (en) | A kind of ecology mattress system | |
| CN102276066A (en) | Suspended-type combined ecological filter bed | |
| CN1982235A (en) | Method for purifying biological settled bed water quality | |
| CN210945239U (en) | Ecological drought island suitable for intermittent type nature cutoff river course | |
| CN211198968U (en) | Rural sewage treatment's soil filtration system | |
| CN108996703A (en) | A kind of black smelly water water and soil water circular biological repair system | |
| CN102515363A (en) | Aquatic artificial wetland capable of purifying water, and manufacturing method thereof | |
| CN112794560A (en) | In-situ ecological purification module and system for polluted water treatment | |
| CN205241362U (en) | Pollute river water body ecological remediation device a little | |
| CN111003811A (en) | Black and odorous river channel treatment method based on river channel artificial ecosystem theory | |
| CN214612081U (en) | Ecological chinampa of combined biological charcoal floating bed of small-size polymerizable | |
| CN109912038A (en) | Sewage natural processing system | |
| CN210261441U (en) | Sewage natural treatment structure | |
| CN100506707C (en) | Controlled biomembrane landscape wetland sewage purification system and technique | |
| CN210656357U (en) | Light-supplementing type undercurrent riparian wetland for runoff non-point source pollution interception | |
| CN209721714U (en) | A kind of flexible ecological purification enclosure for realizing water body isolation and orientation exchange | |
| CN114956305A (en) | Ecological reconstruction method of drainage ditch of aquaculture pond and straw carrier brick |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |