CN209740826U - Ecological bank area purification structure and have river course clean system of this structure - Google Patents
Ecological bank area purification structure and have river course clean system of this structure Download PDFInfo
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- CN209740826U CN209740826U CN201920363663.8U CN201920363663U CN209740826U CN 209740826 U CN209740826 U CN 209740826U CN 201920363663 U CN201920363663 U CN 201920363663U CN 209740826 U CN209740826 U CN 209740826U
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Abstract
The utility model discloses an ecological bank area purification structure and have river course clean system of this structure, aim at solving the clean system among the prior art and have the treatment process and application scope defect such as narrower that take oxygen deficiency or anaerobic environment as the owner, this clean structure is including the vertical flow constructed wetland clean system and the imitative natural wetland clean system that are the cell body structure, two cell body intussuseptions are filled with the adsorption packing, imitative natural wetland clean system is whole or partly submergence in aquatic and highly be less than vertical flow constructed wetland clean system, vertical flow constructed wetland clean system's upper surface is equipped with the water distributor, the bottom is equipped with the collector pipe, the cell wall that the delivery port of collector pipe passed vertical flow constructed wetland clean system guides water to imitative natural wetland clean system, it gets into the river course to go out the artesian after imitative natural wetland clean system handles. The utility model discloses ecological space in the make full use of river course, the administration and the ecological remediation of the slight pollution river in specially adapted city, river gush, city river non-point source pollution control and river bank area view promote etc..
Description
Technical Field
The utility model relates to an improvement and restoration field of aquatic ecological environment, in particular to ecological bank area purification structure and have river course clean system of this structure.
Background
Traditional river bank protection engineering mainly addresses basic functions such as flood control, drainage, diversion and shipping, especially city river course, in order to ensure the flood control safety of river course, all uses the design thinking of hard materials such as concrete, grout stone, etc. basically, considers other functions such as the ecology of river course, view, pollutant purification less. At present, urban rivers in China are generally seriously polluted, the water quality is basically inferior to the V-type standard of surface water, the non-point source pollution is particularly prominent in rainy seasons, meanwhile, the general land resources around the urban rivers are short, the land resources required by the water quality bypass treatment of the riverways are lacked, and the standard reaching pressure of the water quality is huge. Therefore, on the basis of meeting the urban river safety, the ecological river bank protection system with pollutant interception and purification and ecological and landscape properties is researched and developed, and has important significance for realizing the vision of 'water cleaning and bank green' of the urban river.
The Chinese patent with the publication number of 205556237 discloses a horizontal undercurrent ecological filter tank for improving the water quality of a river channel and a water purification system using the filter tank, wherein the water purification system is divided into three parts, namely a water inlet area, a main purification area and a water outlet area, by arranging two baffles, a river channel water body sequentially flows through three water flow grooves, pollutants are purified by the physical, chemical and biological effects, and the core process utilizes a horizontal undercurrent artificial wetland process. The system still has the following defects: 1. the horizontal undercurrent ecological filter tank bed body is basically in a saturated state, aerobic areas are few, only a small-range aerobic space exists on the surface layer of the bed body and around a plant root system, and most areas are in an anoxic or anaerobic state to form a degradation area mainly containing anaerobic microorganisms, so that the high-efficiency removal of pollutants such as organic matters, ammonia nitrogen and the like is not facilitated; 2. because the horizontal undercurrent ecological filter tank has low ammonia nitrogen purification efficiency, the system must increase the width of the system constructed in the riparian zone in order to obtain better purification effect, and the system cannot be used in a relatively narrow river channel without influencing the flood discharge function, so the application range of the system is reduced to a certain extent; 3. the area of a water distribution area of the system is small, and the unit area of the water distribution area bears high hydraulic load, so that blockage is easily caused, the service life of the system is shortened, and the operation cost is improved; 4. according to the method, the horizontal undercurrent filter tank is constructed in the river channel, the layering sense of ecological landscape in the river bank zone is lacked, the natural transition from the river bank to the landscape in the river channel is not realized, and the landscape effect is relatively stiff and hard.
SUMMERY OF THE UTILITY MODEL
For overcoming the defect that exists, the to-be-solved technical problem of the utility model is to provide one kind have efficient microbial degradation effect, and need not additionally occupy land resource and realize the ecological bank area purification structure of natural transition in river bank to the river course.
Therefore, the utility model adopts the following technical scheme:
The utility model discloses an ecological bank purifying structure, which comprises a vertical flow artificial wetland purifying system and an imitated natural wetland purifying system, the vertical flow artificial wetland purification system and the imitated natural wetland purification system are of groove body band structures, the groove bodies of the vertical flow artificial wetland purification system and the imitated natural wetland purification system are filled with adsorption fillers, the height of the vertical flow artificial wetland purification system is larger than that of the imitated natural wetland purification system, the imitated natural wetland purification system is totally or partially immersed in water to imitate a natural wetland environment, the upper surface of the vertical flow artificial wetland purification system is provided with a water distribution pipe, the bottom of the vertical flow artificial wetland purification system is provided with a water collecting pipe, and the water outlet of the water collecting pipe penetrates through the groove wall of the vertical flow artificial wetland purification system to guide water to the simulated natural wetland purification system, and the outlet water automatically flows into a river channel after being treated by the simulated natural wetland purification system.
In one embodiment of the present invention, the vertical flow constructed wetland purification system has a width of 80-300 cm and a depth of 80-120 cm.
In one embodiment of the utility model, the width of the artificial natural wetland purification system is 50-300 cm.
in one embodiment of the present invention, the filler in the vertical flow artificial wetland purification system is one or more of zeolite, ceramsite and gravel.
In one embodiment of the utility model, the filler particle size around the water distribution pipe and the water collection pipe in the vertical flow constructed wetland purification system is 40-60 mm, and the filler particle size of other regions is 5-20 mm.
In an embodiment of the present invention, the filler in the artificial natural wetland purification system is gravel with a particle size of 300-800 mm, cobblestones or a combination of the gravel and the cobblestones.
In one embodiment of the utility model, the water distribution pipe and the water collection pipe are annular or 'rich' perforated pipes, and the water distribution pipe is arranged in a section of the vertical flow artificial wetland purification system from the upper surface of the filler to 10cm below the upper surface.
In an embodiment of the utility model, one or more of cattail, calamus, reed, elephant grass, windmill grass and canna are planted on the filler of the vertical flow artificial wetland purification system and the simulated natural wetland purification system.
The utility model also discloses a river course clean system who contains above-mentioned ecological bank area purification structure, ecological bank area purification structure is built according to the bank area, vertical flow constructed wetland clean system and bank contact and the upper surface is less than the end department parallel and level of bank upper end, lower surface and bank a little.
Compared with the prior art, the utility model discloses the air current of the component part vertical flow constructed wetland clean system the first half air current is good, is in unsaturated situation, forms the biomembrane that takes aerobic microorganism as the main, and then can degrade most organic matters and oxidize ammonia nitrogen into nitrate nitrogen, and the latter half is in saturated state basically, forms oxygen deficiency or anaerobic environment, can further degrade the organic matters, and denitrify nitrate nitrogen into nitrogen gas and get rid of; the other component of the utility model prevents the natural wetland system from forming a surface layer and a plant root system aerobic microenvironment, further degrades pollutants in the water body, thus having better purification effect on the pollutants; the vertical flow artificial wetland purification system and the nature-imitated wetland purification system of the utility model have height difference, so that aquatic plants planted on the vertical flow artificial wetland purification system are scattered, the landscape function of a treatment area is obviously promoted, natural transition from a river bank to a river channel water body is formed, and the vertical flow artificial wetland purification system and the nature-imitated wetland purification system are ecological bank belt systems with ecology, landscape and water quality purification functions; and simultaneously, the utility model discloses still have that investment intensity is low, the construction degree of difficulty is littleer, occupies fewly to the soil, more difficult advantages such as jam.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of a water distribution pipe according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of a water distribution pipe according to another embodiment of the present invention.
In the attached drawing, 1 is a river bank, 2 is a vertical flow artificial wetland purification system, 3 is an imitated natural wetland purification system, 4 is a filler, 5 is a water distribution pipe, 5-1 is a water outlet, 6 is a water collecting pipe, 6-1 is a water outlet, 7 is aquatic plants, and 8 is a river channel.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Referring to the attached drawing 1, the embodiment of the present invention provides an ecological bank purifying structure built according to the bank, the main body includes a vertical flow constructed wetland purifying system 2 and an artificial natural wetland purifying system 3 which are trough structures, the width of the vertical flow constructed wetland purifying system 2 is between 80-300 cm, for example 200cm, the specific width is determined according to different river channel characteristics, on the premise that the flood running function of the river channel 8 is not affected, the depth is 80-120 cm, for example 100cm, the height of the artificial natural wetland purifying system 3 is lower than that of the vertical flow constructed wetland purifying system 2, the width is between 50-300 cm, the trough body is totally or partially immersed in water to simulate the natural wetland environment, the artificial natural wetland purifying system 3 is designed in a flow form, gravels with the particle size of 300-800 mm are placed in the trough, and part of cobblestones are arranged.
The filler 4 in the vertical flow artificial wetland purification system 2 is sequentially gravel, zeolite, ceramsite and gravel from top to bottom, and all occupy 1/4 of the vertical flow artificial wetland purification system 2. In order to drain a water source to be treated into the purification structure of the embodiment for treatment and discharge, and to distribute water uniformly, a water distribution pipe 5 needs to be laid on the upper surface of a filler 4 or 5-10 cm below the filler 4 in a vertical flow artificial wetland purification system 2, and a water collection pipe 6 needs to be laid in the bottom area, as shown in fig. 2, the water distribution pipe 5 is preferably an annular PVC perforated pipe, a group of water outlet holes 5-1 "feng" type PVC perforated pipes are distributed on the water distribution pipe 5, as shown in fig. 3, of course, the "feng" type PVC perforated pipes do not require that the number of transverse perforated pipes is strictly three, four or more than three, the same is to collect water treated by the vertical flow artificial wetland purification system 2, and the water collection pipe 6 also adopts the annular PVC perforated pipe or the "feng" type PVC perforated pipe. The vertical flow artificial wetland purification system 2 is a main water treatment area, the grain diameter of the filler 4 in the tank is generally 5-20 mm, but in the area around the water distribution pipe 5 and the water collection pipe 6, the grain diameter of the filler 4 is 40-60 mm, the grain diameter can effectively prevent the particles of the filler 4 from blocking the water outlet 5-1 on the water distribution pipe 5, and the good air permeability of the upper part of the filler 4 of the vertical flow artificial wetland purification system 2 can be ensured, thus being beneficial to the aggregation of aerobic microorganisms. The water outlet 6-1 of the water collecting pipe 6 partially penetrates through the groove wall of the vertical flow artificial wetland purification system 2, the height of the water outlet 6-1 is flush with or slightly higher than the upper surface of the artificial wetland purification system 3, and after collecting the water treated at the bottom of the vertical flow artificial wetland purification system 2, the water collecting pipe 6 conveys the water into the artificial wetland purification system 3 for further treatment and then automatically flows into a river channel 8.
Vertical current constructed wetland clean system 2 and 3 inslot plants 7 of imitative natural wetland clean system are the utility model discloses an important component plays the dual function of purifying water body and moulding the view, and the large-scale aquatic plant 7 requirement of planting among the ecological bank area purification structure of this embodiment has resistant dirty ability reinforce, purifying effect is good, characteristics such as view effect is good, the native plants such as preference cattail, calamus, reed, elephant grass, windmill grass, canna to carry out rational configuration according to the growth characteristic of local climate characteristics and plant, in order to guarantee purifying effect and view effect. Because the vertical flow artificial wetland purification system 2 and the nature-imitated wetland purification system 3 have height difference, after the aquatic plants are planted, the landscape is well-arranged.
In the embodiment, the absorption effect of the plant 7, the adsorption and precipitation effects of the high-efficiency filler 4 and the high-efficiency degradation effect of the functional microorganisms in the plant 7 root system and the filler 4 are used together to realize the synergistic removal of the pollutants. In fig. 1, the direction of the arrow is the flowing direction of the water in the river or the non-point source, in this embodiment, the upper part of the vertical flow artificial wetland purification system 2, the surface layer of the natural wetland system 3 and the periphery of the plant root system are basically in the aerobic state, a biological film mainly comprising aerobic microorganisms is formed in the filler 4, most organic matters are degraded by the aerobic microorganisms in the area, and the ammonia nitrogen is converted into nitrate nitrogen under the action of nitrobacteria; the lower half part of the vertical flow artificial wetland purification system 2 and the middle and lower layers of the natural wetland prevention system 3 mainly adopt an anoxic or anaerobic environment, organic matters are further degraded, and denitrifying bacteria take the organic matters carried in sewage as a carbon source to finish denitrification removal of part of nitrogen; the phosphorus is mainly removed by the adsorption and sedimentation of the filler 4 in the vertical flow artificial wetland purification system 2 and the natural wetland prevention system 3 and by the absorption of the large aquatic plants 7.
The utility model can improve the water quality of the river channel besides the control effect on the surface source pollution, and when the water in the river channel is taken as a treatment object, the design of the matched retaining dam is planned, and the water enters the ecological bank zone purification system under the action of gravity; when the non-point source polluted water is treated, the change of the non-point source polluted water is flexibly changed according to the characteristics of the river channel, and the water automatically flows into the purification system through the river bank.
The utility model discloses mainly to getting rid of organic matter, ammonia nitrogen, total nitrogen and total phosphorus in the water, wherein organic matter, ammonia nitrogen, total phosphorus are the important target pollutant of getting rid of. In order to obtain a good purification effect and ensure the sustainable operation of the system, the concentration of the pollutants entering the water of the system is controlled, the COD concentration of the inlet water is preferably controlled within 80 mg/L, the ammonia nitrogen is preferably controlled within 6 mg/L, the total phosphorus is preferably controlled within 2 mg/L, and the hydraulic load of the operation is preferably controlled below 0.5 m/d, but when the system is used for deep treatment of micro-polluted water, the hydraulic load can be properly adjusted and can reach 1m/d at most. When the water inlet of the system is in a set range, the COD removal rate can reach 60-80%, the ammonia nitrogen removal rate can reach 50-70%, and the total phosphorus removal rate can reach 40-60%.
The purification structure fully utilizes the ecological space of the river channel, is constructed in the river channel, does not need to additionally occupy land resources, has obvious pollutant purification effect, and is particularly suitable for the treatment and ecological restoration of slightly polluted small rivers and river gushes, the surface source pollution control of urban rivers, the elevation of shoreside landscapes and the like. It is of course to be noted that the purification structure of the present invention can also be used for non-point source pollution control in lakes and the like.
Claims (9)
1. The utility model provides an ecological bank area purification structure which characterized in that: the artificial wetland purification system comprises a vertical flow artificial wetland purification system (2) and an artificial natural wetland purification system (3), wherein the vertical flow artificial wetland purification system (2) and the artificial natural wetland purification system (3) are of groove body strip structures, adsorption fillers (4) are filled in the groove bodies of the vertical flow artificial wetland purification system (2) and the artificial natural wetland purification system, the height of the vertical flow artificial wetland purification system (2) is greater than that of the artificial natural wetland purification system (3), the artificial natural wetland purification system (3) is totally or partially immersed in water to simulate the natural wetland environment, a water distribution pipe (5) is arranged on the upper surface of the vertical flow artificial wetland purification system (2), a water collection pipe (6) is arranged at the bottom of the vertical flow artificial wetland purification system, a water outlet (6-1) of the water collection pipe (6) penetrates through the groove wall of the vertical flow artificial wetland purification system (2) to guide water to the artificial natural wetland purification system (3, the effluent is treated by the natural wetland simulating purification system (3) and then automatically flows into a river channel (8).
2. The ecological shore area purification structure of claim 1, wherein: the vertical flow artificial wetland purification system (2) is 80-300 cm in width and 80-120 cm in depth.
3. The ecological shore area purification structure of claim 1, wherein: the width of the artificial natural wetland purification system (3) is 50-300 cm.
4. The ecological shore area purification structure of claim 1, wherein: the filler (4) in the vertical flow artificial wetland purification system (2) is one or a combination of zeolite, ceramsite and gravel.
5. The ecological shore band purification structure of claim 1 or 4, characterized in that: the particle size of the filler (4) around the water distribution pipe (5) and the water collection pipe (6) in the vertical flow artificial wetland purification system (2) is 40-60 mm, and the particle size of the filler (4) in other areas is 5-20 mm.
6. The ecological shore area purification structure of claim 1, wherein: the filler (4) in the artificial natural wetland purification system (3) is gravel with the particle size of 300-800 mm, cobblestones or a combination of the gravel and the cobblestones.
7. The ecological shore area purification structure of claim 1, wherein: the water distribution pipe (5) and the water collection pipe (6) are annular or 'rich' perforated pipes, and the water distribution pipe (5) is arranged in a section of the vertical flow artificial wetland purification system (2) from the upper surface to the upper surface by 10 cm.
8. The ecological shore area purification structure of claim 1, wherein: one or more of cattail, calamus, reed, elephant grass, windmill grass and canna are planted on the filler (4) of the vertical flow artificial wetland purification system (2) and the simulated natural wetland purification system (3).
9. The utility model provides a river course clean system which characterized in that: the ecological bank zone purification structure comprising the ecological bank zone purification structure according to claim 1, wherein the ecological bank zone purification structure is built according to a bank zone, the vertical flow artificial wetland purification system (2) is in contact with the bank, the upper surface of the vertical flow artificial wetland purification system is slightly lower than the upper end of the bank, and the lower surface of the vertical flow artificial wetland purification system is flush with the bottom of the bank.
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| CN201920363663.8U CN209740826U (en) | 2019-03-21 | 2019-03-21 | Ecological bank area purification structure and have river course clean system of this structure |
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| CN201920363663.8U CN209740826U (en) | 2019-03-21 | 2019-03-21 | Ecological bank area purification structure and have river course clean system of this structure |
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| CN209740826U true CN209740826U (en) | 2019-12-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109809569A (en) * | 2019-03-21 | 2019-05-28 | 深圳市环境科学研究院 | It is a kind of ecology bank with treatment facilities and with the river channel purification system of the structure |
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2019
- 2019-03-21 CN CN201920363663.8U patent/CN209740826U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109809569A (en) * | 2019-03-21 | 2019-05-28 | 深圳市环境科学研究院 | It is a kind of ecology bank with treatment facilities and with the river channel purification system of the structure |
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