CN105461072A - Ecological bank revetment purifying system - Google Patents
Ecological bank revetment purifying system Download PDFInfo
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- CN105461072A CN105461072A CN201511010421.3A CN201511010421A CN105461072A CN 105461072 A CN105461072 A CN 105461072A CN 201511010421 A CN201511010421 A CN 201511010421A CN 105461072 A CN105461072 A CN 105461072A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The invention relates to the field of river ecological bank revetment projects and particularly relates to an ecological bank revetment purifying system, which has the advantages that the purifying treatment process is prolonged, the purifying efficiency of biochemical reactions is improved, and the nitrogen-containing surface-source pollutants with relatively high nitrogen content are efficiently removed. The ecological bank revetment purifying system comprises a bank revetment above the normal water level of a river bank slope, wherein the bank revetment comprises a protection pile driven into the river bank slope and a gabion fixed on the river bank slope; the protection pile consists of multiple individual piles in rows, and a gap exists between adjacent individual piles; a first impervious layer is arranged between the protection pile and the gabion; the protection pile, the gabion and the first impervious layer form a reaction tank; a vegetable layer, an adsorption layer and a denitrification layer parallel to the river bank slope are arranged in the reaction tank sequentially from top to bottom; multiple second impervious layers are arranged on the vegetable layer and the adsorption layer in a direction vertical to the river bank slope; and the second impervious layers sequentially divide the reaction tank into multiple secondary reaction tanks.
Description
Technical field
The present invention relates to river ecological shore protection engineering field, particularly relate to a kind of ecological revetment purification system purifying nitrogenous class area source pollutants.
Background technology
In recent years, water bodies of rivers and lakes severe water pollution, eutrophication frequently occur, soil erosion phenomenon also occurs often, and at this point, how Control pollution material enters water bodies of rivers and lakes, improves water quality and prevent the large-area loss of water and soil to become instant task.River pollution of area source is the one of the main reasons causing stream pollution, particularly along with the quickening of urbanization process, the change of urban land use character, waterproof region area proportion increase, the run-off of rainwater obviously increases and its contamination level carried also increases thereupon, and the river pollution of area source that rainwater causes becomes a threat that can not ignore.
For the control of river pollution of area source, ecological revetment has extremely important effect, ecological revetment is on the basis of stablizing and preventing erosion ensureing river course bank slope, open system is converted to by traditional closed system, make the land and water ecosystem close ties of river water level fluctuation zone, form the land and water homestat that material, energy and an information constantly exchange, this internal system also exists complicated food chain, can strengthen river water quality self-purification capacity.Ecology typed bank revetment pattern common at present mainly contains vegetation ecological shore protection, ecology bag shore protection, eco-concrete shore protection, gabion shore protection etc., although China adopts such shore protection pattern to renovate lakeside slope, river and achieves certain achievement, but also find some problems simultaneously, such as: one, lake, existing river ecological shore protection system hydraulic detention time is shorter, cause that purifying treatment program is short, decontamination effect improving is bad; Two, when the area source pollutants higher in the face of nitrogen content, the removal efficiency of shore protection system to pollutent is limited.
Because above-mentioned defect, the design people, actively in addition research and innovation, to founding a kind of ecological revetment purification system of novel texture, make it have more utility value in industry.
Summary of the invention
The object of this invention is to provide a kind of ecological revetment purification system extending purifying treatment program, the purification efficiency of raising biochemical reaction, the efficiently area source pollutants that removal nitrogen content is higher.
Ecological revetment purification system of the present invention, comprise the shore protection being positioned at more than river course bank slope ordinary water level, described shore protection comprises the fender pile and the solid gabion of base on river course bank slope of squeezing into river course bank slope, described fender pile is made up of side by side some monomer stakes and there is gap between adjacent monomer stake, described fender pile and gabion (between be provided with the first watertight layer, described fender pile, gabion and the first watertight layer surround reaction tank, the vegetable layer being parallel to river course bank slope slope aspect is disposed with from top to bottom in described reaction tank, adsorption layer and denitrification layer, vertical direction along river course bank slope slope aspect on described vegetable layer and adsorption layer is provided with some second watertight layers, reaction tank is divided into several times reaction tank by described second watertight layer successively.
Further, described vegetable layer comprises plantation layer and is planted in the waterplant on plantation layer, and described plantation layer is mixed by soil and compost.
Further, described plantation layer by soil and compost according to volume ratio (10 ~ 20): 1 mixes.
Further, the top of described second watertight layer is higher than described plantation layer upper surface 3-5cm.
Further, described adsorption layer comprises buffering adsorption layer and eluvial layer, and described buffering adsorption layer is positioned at described eluvial layer upper side, and described buffering adsorption layer comprises sepiolite cashmere and some zeolites, all containing microflora on each zeolite.
Further, the volume ratio of described sepiolite cashmere and zeolite is 1:(1 ~ 2).
Further, described microflora is primarily of Ammonifying bacteria and nitrobacteria composition.
Further, described eluvial layer comprises some gravels, and the particle diameter of described gravel is 5-20mm.
Further, described denitrification layer comprises some haydites, containing denitrifying bacterium on each haydite.
Further, the Thickness Ratio of described buffering adsorption layer, eluvial layer and denitrification layer is 2:1:1.
By such scheme, the present invention at least has the following advantages: the area source pollutants 1, from rainwash enters reaction tank through fender pile, water flows through from the gap of fender pile, not only increase Dissolved Oxygen in Water and effectively slow down water flow velocity, strengthen under runoff water and ooze, for follow-up purifying treatment program provides longer hydraulic detention time, extend purifying treatment program, improve purification efficiency, the effect of the shore protection that fender pile also plays simultaneously, prevent from corroding, prevent river course flowing water from washing away; 2, the water body after the purification of gabion shore protection water conservancy diversion denitrification layer enters water body, prevents from corroding, preventing river course flowing water from washing away simultaneously; 3, reaction tank is divided into several times reaction tank by some second watertight layers successively, several times reaction tank is in series, be connected bottom adjacent secondary response pond, namely current can flow in several times reaction tank through denitrification layer, the purification layered structure in each secondary response pond is parallel to that riverbank bank slope is domatic and thickness is equal, this system is without any need for power, only carry out purifying treatment by gravity potential official post area source pollutants in order at each reaction tank, water body after being cleaned through gabion, finally enters He Hu along denitrification laminar flow.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technique means of the present invention, and can be implemented according to the content of specification sheets, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present invention.
Accompanying drawing explanation
Fig. 1 is the structural representation of ecological revetment purification system of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
See Fig. 1, a kind of ecological revetment purification system of a preferred embodiment of the present invention, for river course bank slope 1, comprise the shore protection being positioned at more than river course bank slope 1 ordinary water level, shore protection comprises the fender pile 2 and the solid gabion 3 of base on river course bank slope 1 of squeezing into river course bank slope 1, fender pile 2 is made up of side by side some monomer stakes and there is gap between adjacent monomer stake, monomer stake can select timber, the first watertight layer 4 is provided with between fender pile 2 and gabion 3, first watertight layer 4 adopts ecology to subtract to ooze structure and be parallel to the domatic setting of river course bank slope 1, GCL is generally selected to lay, fender pile 2, gabion 3 and the first watertight layer 4 surround reaction tank, the vegetable layer 5 being parallel to river course bank slope 1 slope aspect is disposed with from top to bottom in reaction tank, adsorption layer and denitrification layer 8, vegetable layer 5 and the interior vertical direction along river course bank slope 1 slope aspect of adsorption layer are provided with some second watertight layers 9, reaction tank is divided into several times reaction tank by the second watertight layer 9 successively, second watertight layer 9 of some amount can be set in practical application according to demand, in the present embodiment, 2 the second watertight layers 9 are provided with in reaction tank, define first set reaction pond successively, second time reaction tank and for the third time reaction tank.
The vegetable layer 5 of ecological revetment purification system comprises plantation layer and is planted in the waterplant on plantation layer, plantation layer is mixed by soil and compost, be preferably, plantation layer is mixed according to volume ratio 10 ~ 20:1 by soil and compost, and garden waste compost selected by compost and composting production meets Beijing's provincial standard (DB11/T840-2011); Plantation layer is positioned at the top of adsorption layer, and the waterplant of plantation layer can absorb nitrogen in sewage to reach the object of denitrogenating, and also can slow down rainwash, prevent erosion.The carbohydrate of generation is transported to plant rhizosphere by photosynthesis by waterplant, for adsorption layer provides carbon source, thus maintain the activity of vigorous rhizospheric microorganism, form waterplant and microorganism synergistic purification water quality, simultaneously, wetland plant organizes delivering oxygen to root system, for the adsorption layer in this system provides aerobic environment by hollow.
The top of the second watertight layer 9 of ecological revetment purification system slows down current and a section dirty effect higher than plantation layer upper surface 3-5cm with realization, second watertight layer 9 adopts and adopts geomembrane to lay perpendicular to domatic impervious materials, ensure that area source pollutants vertically carries out biochemical reaction in order at reaction tank, the bottom of geomembrane can be placed in the surface of denitrification layer 8, or extend to still not through denitrification layer 8 in denitrification layer 8, the water body after guarantee purification can enter He Hu along denitrification layer 8 and gabion 3.
The adsorption layer of ecological revetment purification system comprises buffering adsorption layer 6 and eluvial layer 7, buffering adsorption layer 6 is positioned at eluvial layer 7 upper side, buffering adsorption layer 6 comprises sepiolite cashmere and some zeolites, all containing microflora on each zeolite, microflora is primarily of Ammonifying bacteria and nitrobacteria composition, be preferably, the volume ratio of sepiolite cashmere and zeolite is 1:1 ~ 2, buffering adsorption layer 6, the Thickness Ratio of eluvial layer 7 and denitrification layer 8 is 2:1:1, adsorption layer is laminate structure, according to on-the-spot Runoff situation, determine that the cumulative volume of this ecological revetment purification system carries out design thickness.Zeolite has extremely strong Selective adsorption to ammonium nitrogen, the ammonium nitrogen in sewage can be retained fast, but the final approach can not removed as ammonia-state nitrogen, because zeolite has huge specific surface area, being a kind of desirable microbe carrier, when constructing, Ammonifying bacteria and nitrobacteria being fixed in zeolite to remove ammonia-state nitrogen further; In decontamination process, waterplant is that buffering adsorption layer 6 provides sufficient carbon source and aerobic environment, therefore the microflora that in adsorption layer 6, easy formation Ammonifying bacteria and nitrobacteria are taken as the leading factor is cushioned, and reproduction speed is fast, form most important biochemical reaction center in ecological revetment purification system.Sepiolite cashmere is cotton-shaped, belong to laminar silicic acid salt, structural models according to Blang and Pu Lai Singh calculates, the total surface area of sepiolite is 800 ~ 900m2/g, its internal surface area is 500m2/g, outer surface area is 400m2/g, namely sepiolite has powerful specific surface area and pore capacities, sepiolite is made to have very strong absorption property and water absorbing properties, the highest 200%-250% that can reach himself weight of water ratio of sepiolite, extend hydraulic retention amount and the residence time, extend purifying treatment program, improve the purification efficiency of biochemical reaction.
The eluvial layer 7 of ecological revetment purification system comprises some gravels, the particle diameter 5-20mm of gravel; Eluvial layer 7 is laminate structure, be positioned at the below of buffering adsorption layer 6, nitrogen in buffering adsorption layer 6 finally forms nitric nitrogen through complicated biochemical reaction, because the leaching of nitric nitrogen is very strong, directly can enter eluvial layer 7 through buffering adsorption layer 6, eluvial layer 7 is made up of gravel, accelerates nitric nitrogen further and enters into denitrification layer 8 fast, accelerates buffering adsorption layer 6 mesolite to the circulation absorption function of ammonia-state nitrogen.
The denitrification layer 8 of ecological revetment purification system comprises some haydites, containing denitrifying bacterium on each haydite.Haydite has the performance of multiple excellence, as little in internal porous, huge specific surface area, density, high strength and soundness, thus haydite has light weight, adsorptive power is strong, is easy to the attachment of microorganism, the feature such as firm, corrosion-resistant, freeze proof, during construction, denitrifying bacterium is fixed in haydite; Denitrification layer 8 is positioned at below eluvial layer 7, there is the effect of guide water, in addition, because denitrification layer 8 is positioned at ecological revetment purification system bottommost, cause denitrification layer 8 dissolved oxygen concentration extremely low, haydite is that microorganism provides abundant attachment site simultaneously, therefore easily forms the microflora taken as the leading factor with denitrifying bacterium in denitrification layer 8, the nitric nitrogen that leaching gets off is converted into nitrogen under the effect of denitrifying bacterium, reaches the object of denitrogenating.
The principle of work of ecological revetment purification system of the present invention is as follows:
River course on the bank can suitable plantation vegetation 10, river course bank slope 1 is built ecological revetment purification system of the present invention.
When the sewage carrying area source pollutants enters this ecological revetment purification system, sewage cuts dirt first through vegetable layer 5, be buffered adsorption layer 6 afterwards fully to absorb, sepiolite cashmere extends organic nitrogen in sewage, ammonia-state nitrogen and the nitric nitrogen residence time at buffering adsorption layer 6, ammonia-state nitrogen in sewage can be buffered the zeolite adsorption in adsorption layer 6 fast and fix, and is converted into nitric nitrogen NO subsequently by nitrobacteria
3--N, first organic nitrogen is converted into ammonia-state nitrogen NH through Ammonifying bacteria
4+-N is also fixed by zeolite, is again converted into nitric nitrogen NO by nitrobacteria subsequently
3--N, nitric nitrogen does not participate in any reaction in this stage, and along with buffering adsorption layer 6 and eluvial layer 7 directly enter denitrification layer 8, the nitric nitrogen that leaching gets off is converted into nitrogen under the effect of denitrifying bacterium, reaches the object of denitrogenating.
Ecological revetment purification system of the present invention a set ofly perfect denitrogenates filtration system, the area source pollutants higher to nitrogen content has the removal effect of highly significant, this filtration system is by increasing the external residence time of pollution of area source material in filtration system, make pollutent carry out sufficient biochemical reaction in each level of this shore protection system, finally reach the object of sewage purification.
Below be only the preferred embodiment of the present invention; be not limited to the present invention; should be understood that; for those skilled in the art; under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and modification, these improve and modification also should be considered as protection scope of the present invention.
Claims (10)
1. an ecological revetment purification system, for river course bank slope (1), it is characterized in that: comprise the shore protection being positioned at more than river course bank slope (1) ordinary water level, described shore protection comprises the fender pile (2) and the solid gabion (3) of base on river course bank slope (1) of squeezing into river course bank slope (1), described fender pile (2) is made up of side by side some monomer stakes and there is gap between adjacent monomer stake, the first watertight layer (4) is provided with between described fender pile (2) and gabion (3), described fender pile (2), gabion (3) and the first watertight layer (4) surround reaction tank, the vegetable layer (5) being parallel to river course bank slope (1) slope aspect is disposed with from top to bottom in described reaction tank, adsorption layer and denitrification layer (8), vertical direction along river course bank slope (1) slope aspect on described vegetable layer (5) and adsorption layer is provided with some second watertight layers (9), reaction tank is divided into several times reaction tank by described second watertight layer (9) successively.
2. ecological revetment purification system according to claim 1, is characterized in that: described vegetable layer (5) comprises plantation layer and is planted in the waterplant on plantation layer, and described plantation layer is mixed by soil and compost.
3. ecological revetment purification system according to claim 2, is characterized in that: described plantation layer by soil and compost according to volume ratio (10 ~ 20): 1 mixes.
4. ecological revetment purification system according to claim 2, is characterized in that: the top of described second watertight layer (9) is higher than described plantation layer upper surface 3-5cm.
5. the ecological revetment purification system according to any one of claim 1-3, it is characterized in that: described adsorption layer comprises buffering adsorption layer (6) and eluvial layer (7), described buffering adsorption layer (6) is positioned at described eluvial layer (7) upper side, described buffering adsorption layer (6) comprises sepiolite cashmere and some zeolites, all containing microflora on each zeolite.
6. ecological revetment purification system according to claim 5, is characterized in that: the volume ratio of described sepiolite cashmere and zeolite is 1:(1 ~ 2).
7. ecological revetment purification system according to claim 5, is characterized in that: described microflora is primarily of Ammonifying bacteria and nitrobacteria composition.
8. ecological revetment purification system according to claim 5, is characterized in that: described eluvial layer (7) comprises some gravels, and the particle diameter of described gravel is 5-20mm.
9. ecological revetment purification system according to claim 7, is characterized in that: described denitrification layer (8) comprises some haydites, containing denitrifying bacterium on each haydite.
10. ecological revetment purification system according to claim 5, is characterized in that: the Thickness Ratio of described buffering adsorption layer (6), eluvial layer (7) and denitrification layer (8) is 2:1:1.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106145390A (en) * | 2016-08-31 | 2016-11-23 | 鑫源鑫（北京）水利工程有限公司 | Lake, river biological cleaning slope system |
| CN107540159A (en) * | 2017-09-29 | 2018-01-05 | 路域生态工程有限公司 | A kind of system and method for enhanced type filtration system treatment of sewage in expressway service |
| CN107759021A (en) * | 2017-11-15 | 2018-03-06 | 天津大学 | A kind of automatic control type ecological shore protection system for riverway water quality purification |
| CN109056646A (en) * | 2018-08-15 | 2018-12-21 | 天津大学 | The multi-level intelligent ecological shore protection system in river based on sponge city |
| CN111635065A (en) * | 2020-04-30 | 2020-09-08 | 东莞电建水环境治理技术有限公司 | Ecological bank protection clean system |
| CN111762898A (en) * | 2020-07-15 | 2020-10-13 | 中国建筑设计研究院有限公司 | Ecological gravel revetment for degrading micro-pollutants in water body and construction method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109056646A (en) * | 2018-08-15 | 2018-12-21 | 天津大学 | The multi-level intelligent ecological shore protection system in river based on sponge city |
| CN111635065A (en) * | 2020-04-30 | 2020-09-08 | 东莞电建水环境治理技术有限公司 | Ecological bank protection clean system |
| CN111762898A (en) * | 2020-07-15 | 2020-10-13 | 中国建筑设计研究院有限公司 | Ecological gravel revetment for degrading micro-pollutants in water body and construction method thereof |
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| CN105461072B (en) | 2018-08-28 |
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Effective date of registration: 20180905 Address after: 523007 10 building, 1 building, extension center, Dongcheng cultural center, Dongyuan Road, Dongcheng Street, Dongguan, Guangdong. Patentee after: South of the Five Ridges ecological culture brigade Limited by Share Ltd Address before: 100015 2035, two floor, 5 building, 5 hospital, Beijing, Chaoyang District. Patentee before: South of the Five Ridges Xinke ecological science and Technology Research Institute (Beijing) Co., Ltd. |
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