CN105461072B - ecological revetment purification system - Google Patents

ecological revetment purification system Download PDF

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Publication number
CN105461072B
CN105461072B CN201511010421.3A CN201511010421A CN105461072B CN 105461072 B CN105461072 B CN 105461072B CN 201511010421 A CN201511010421 A CN 201511010421A CN 105461072 B CN105461072 B CN 105461072B
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China
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layer
purification
ecological revetment
slope
river bank
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CN201511010421.3A
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CN105461072A (en
Inventor
梁玉婷
高彦波
佟镇
高声远
徐志
李远帆
潘玲
郑鹏
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South of the Five Ridges ecological culture brigade Limited by Share Ltd
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South Of Five Ridges Xinke Ecological Science And Technology Research Institute (beijing) Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/32Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/30Aerobic and anaerobic processes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/34Biological treatment of water, waste water, or sewage characterised by the microorganisms used
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/007Contaminated open waterways, rivers, lakes or ponds
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Abstract

The present invention relates to river ecological bank-protection works fields,More particularly to a kind of extension purified treatment program,Improve biochemical reaction purification efficiency,The efficiently ecological revetment purification system of the higher nitrogenous class area source pollutants of purification of removal nitrogen content,It include the shore protection more than river bank slope ordinary water level,Shore protection includes the fender pile for squeezing into river bank slope and solid gabion of the base on river bank slope,Fender pile is made of side by side several monomer stakes and there are gaps between adjacent monomer stake,The first impermeable stratum is provided between fender pile and gabion,Fender pile,Gabion and the first impermeable stratum surround reaction tank,The vegetable layer for being parallel to river bank slope slope aspect is set gradually in reaction tank from top to bottom,Adsorption layer and denitrification layer,The vertical direction of vegetable layer and adsorption layer upper edge river bank slope slope aspect is provided with several second impermeable stratums,Reaction tank is divided into reaction tank several times by the second impermeable stratum successively.

Description

Ecological revetment purification system
Technical field
The present invention relates to river ecological bank-protection works field more particularly to a kind of ecologies of the nitrogenous class area source pollutants of purification Shore protection purification system.
Background technology
In recent years, water bodies of rivers and lakes severe water pollution, eutrophication frequently occurred, and soil erosion phenomenon also goes out often It is existing, with regard to this, how to control that polluter enters water bodies of rivers and lakes, the loss that improves water quality and prevent water and soil large area has become Very urgent task.River pollution of area source is one of the main reason for causing river pollution, in particular with urbanization process Quickening, the changing of urban land use property, waterproof region area proportion increase, the run-off of rainwater significantly increases And its contaminant capacity carried also increases therewith, river pollution of area source caused by rainwater becomes a threat that cannot ignore.
For the prevention of river pollution of area source, it is to ensure river that ecological revetment, which has extremely important effect, ecological revetment, On the basis of the stablizing and prevent erosion of road bank slope, open system is converted by traditional closed system, makes river The land and water ecosystem close ties in fluctuation of water table area, it is flat to form the land and water dynamic that a substance, energy and information constantly exchange Balance system, the internal system can enhance river water quality self-purification capacity there is complicated food chain.Environmental shield common at present Bank pattern mainly has vegetation ecological shore protection, ecology bag shore protection, eco-concrete shore protection, gabion shore protection etc., is somebody's turn to do although China uses Class shore protection pattern carries out regulation to river and lake side slope and achieves certain achievement, but simultaneously it has also been found that some problems, such as:One, existing Some river and lake ecological shore protection system hydraulic detention times are shorter, cause that purified treatment program is short, clean-up effect is bad;Two, in face When area source pollutants higher to nitrogen content, shore protection system is limited to the removal efficiency of pollutant.
In view of the above shortcomings, the designer, is actively subject to research and innovation, to found a kind of new structural ecology Shore protection purification system makes it with more the utility value in industry.
Invention content
The object of the present invention is to provide a kind of extension purified treatment program, the purification efficiency for improving biochemical reaction, efficiently go Except the ecological revetment purification system of the higher area source pollutants of nitrogen content.
The ecological revetment purification system of the present invention, includes the shore protection more than river bank slope ordinary water level, the shore protection packet The fender pile for squeezing into river bank slope and solid gabion of the base on river bank slope are included, the fender pile is made of side by side several monomer stakes And there are gap between adjacent monomer stake, the fender pile and gabion (between be provided with the first impermeable stratum, the fender pile, Gabion and the first impermeable stratum surround reaction tank, are set gradually from top to bottom in the reaction tank and are parallel to river bank slope slope aspect Vegetable layer, adsorption layer and denitrification layer, the vertical direction of the vegetable layer and adsorption layer upper edge river bank slope slope aspect is provided with Reaction tank is divided into reaction tank several times by several second impermeable stratums, second impermeable stratum successively.
Further, the vegetable layer include plant layer and be planted in plantation layer on water plant, the plantation layer by Soil and compost mix.
Further, the plantation layer by soil and compost according to volume ratio (10~20):1 mixes.
Further, the top of second impermeable stratum is higher than the plantation layer upper surface 3-5cm.
Further, the adsorption layer includes that buffering adsorption layer and leached layer, the buffering adsorption layer are located at the leaching Layer upper side, the buffering adsorption layer includes sepiolite cashmere and several zeolites, contains microbiologic population on each zeolite.
Further, the volume ratio of the sepiolite cashmere and zeolite is 1:(1~2).
Further, the microbiologic population is mainly made of amonifying bacteria and nitrobacteria.
Further, the leached layer includes several gravels, and the grain size of the gravel is 5-20mm.
Further, the denitrification layer includes several haydites, contains denitrifying bacteria on each haydite.
Further, the thickness ratio of the buffering adsorption layer, leached layer and denitrification layer is 2:1:1.
According to the above aspect of the present invention, the present invention has at least the following advantages:1, the area source pollutants from rainwash are by anti- Fender pile enters reaction tank, and water is flowed through from the gap of fender pile, not only increase Dissolved Oxygen in Water and also effectively slow down water flow velocity, It is oozed under enhancing runoff water, longer hydraulic detention time is provided for subsequent purified treatment program, extension purified treatment program, Purification efficiency is improved, the effect for the shore protection that fender pile also functions to simultaneously prevents from corroding, prevents river flowing water from washing away;2, gabion protects The purified water body of bank water conservancy diversion denitrification layer enters water body, while preventing from corroding, preventing river flowing water from washing away;3, several second are not Reaction tank is divided into reaction tank several times by pervious bed successively, and reaction tank is in series several times, and adjacent secondary response bottom of pond portion is connected Logical, i.e., flow can be flowed through denitrification layer in reaction tank several times, and the purification layered structure in each secondary response pond is parallel to river Bank bank slope slope surface and thickness is equal, which does not need any power, only leans on gravitational potential official post area source pollutants anti-at each Pond is answered orderly to carry out purified treatment, the water body after being cleaned, through gabion, eventually enters into river and lake along denitrification laminar flow.
Above description is only the general introduction of technical solution of the present invention, in order to better understand the technical means of the present invention, And can be implemented in accordance with the contents of the specification, below with presently preferred embodiments of the present invention and after coordinating attached drawing to be described in detail such as.
Description of the drawings
Fig. 1 is the structural schematic diagram of ecological revetment purification system of the present invention.
Specific implementation mode
With reference to the accompanying drawings and examples, the specific implementation mode of the present invention is described in further detail.Implement below Example is not limited to the scope of the present invention for illustrating the present invention.
Referring to Fig. 1, a kind of ecological revetment purification system of a preferred embodiment of the present invention is used for river bank slope 1, including Shore protection more than 1 ordinary water level of river bank slope, shore protection include squeezing into the fender pile 2 of river bank slope 1 and consolidating base in river bank slope 1 On gabion 3, fender pile 2 is made of several monomer stakes and between adjacent monomer stake side by side there are gap, and wood can be selected in monomer stake Stake, is provided with the first impermeable stratum 4 between fender pile 2 and gabion 3, the first impermeable stratum 4 is subtracted using ecology oozes structure and parallel It is arranged in 1 slope surface of river bank slope, general that bentonite waterproof blanket is selected to be laid with, fender pile 2, gabion 3 and the first impermeable stratum 4 Reaction tank is surrounded, sets gradually the vegetable layer 5 for being parallel to 1 slope aspect of river bank slope, adsorption layer and anti-in reaction tank from top to bottom Layer 8 is nitrified, vegetable layer 5 and the interior vertical direction along 1 slope aspect of river bank slope of adsorption layer are provided with several second impermeable stratums 9, the Reaction tank is divided into reaction tank several times by two impermeable stratums 9 successively, can be arranged according to demand in practical application a certain number of Second impermeable stratum 9 in the present embodiment, is provided with 2 the second impermeable stratums 9, has sequentially formed first set reaction in reaction tank Pond, second of reaction tank and third time reaction tank.
The vegetable layer 5 of ecological revetment purification system includes plantation layer and is planted in the water plant planted on layer, plants layer It is mixed by soil and compost, preferably, plantation layer is by soil and compost according to volume ratio 10~20:1 mixes, compost It selects garden waste compost and composting production meets Beijing's provincial standard (DB11/T840-2011);It plants layer and is located at absorption The top of layer, the nitrogen in sewage can be absorbed to achieve the purpose that denitrogenate by planting the water plant of layer, can also slow down rainwash, It prevents erosion.The carbohydrate of generation is transported to plant rhizosphere by water plant by photosynthesis, is carried for adsorption layer For carbon source, to maintain the activity of vigorous rhizosphere microorganism, water plant and microorganism synergistic purification water quality are formed, meanwhile, it is wet Ground plant conveys oxygen to root system by hollow tissue, and aerobic environment is provided for the adsorption layer in the system.
Slowed down with realizing higher than plantation layer upper surface 3-5cm on the top of second impermeable stratum 9 of ecological revetment purification system Flow and the effect for cutting dirt, the second impermeable stratum 9 are laid with using the impermeable material perpendicular to slope surface using geomembrane, ensure face Source pollutants vertically orderly carry out biochemical reaction in reaction tank, and the bottom end of geomembrane can be placed in the surface of denitrification layer 8, or extend In to denitrification layer 8 but it is not passed through denitrification layer 8, ensures that purified water body can enter along denitrification layer 8 and gabion 3 River and lake.
The adsorption layer of ecological revetment purification system includes buffering adsorption layer 6 and leached layer 7, and buffering adsorption layer 6 is located at leaching 7 upper side of layer, buffering adsorption layer 6 include sepiolite cashmere and several zeolites, contain microbiologic population, microorganism on each zeolite Group is mainly made of amonifying bacteria and nitrobacteria, and preferably, the volume ratio of sepiolite cashmere and zeolite is 1:1~2, buffering is inhaled The thickness ratio of attached layer 6, leached layer 7 and denitrification layer 8 is 2:1:1, adsorption layer is layer structure, according to live Runoff feelings Condition determines that the total volume of the ecological revetment purification system is designed thickness.Zeolite there is extremely strong selection to adsorb ammonium nitrogen Property, the ammonium nitrogen in sewage, but the final approach that can not be removed as ammoniacal nitrogen can be quickly retained, since zeolite is with huge Specific surface area, be a kind of ideal microbe carrier, construction when by amonifying bacteria and nitrobacteria be fixed in zeolite with Further remove ammoniacal nitrogen;In decontamination process, water plant is to buffer adsorption layer 6 to provide sufficient carbon source and aerobic Environment, therefore buffer and easily form amonifying bacteria in adsorption layer 6 and nitrobacteria be the microbiologic population dominated, and reproduction speed Soon, most important biochemical reaction center in ecological revetment purification system is formed.Sepiolite cashmere is in cotton-shaped, belongs to phyllosilicate Class is calculated according to the structural model of Blang and Pu Lai Singhs, and the total surface area of sepiolite is 800~900m2/g, internal surface area There is powerful specific surface area and pore capacities for 500m2/g, external surface area 400m2/g, i.e. sepiolite so that sepiolite has Very strong absorption property and water absorbing properties, the moisture content highest of sepiolite can reach the 200%-250% of its own weight, prolong Hydraulic retention amount and residence time are grown, the purification efficiency for extending purified treatment program, improving biochemical reaction.
The leached layer 7 of ecological revetment purification system includes several gravels, the grain size 5-20mm of gravel;Leached layer 7 is stratiform Structure is located at the lower section of buffering adsorption layer 6, and the nitrogen buffered in adsorption layer 6 ultimately forms nitrate nitrogen by complicated biochemical reaction, Since the leaching of nitrate nitrogen is very strong, buffering adsorption layer 6 can be directly over and enter leached layer 7, leached layer 7 is made of gravel, It further speeds up nitrate nitrogen and is rapidly introduced into denitrification layer 8, accelerate in buffering adsorption layer 6 zeolite to the circulation absorption work(of ammoniacal nitrogen Energy.
The denitrification layer 8 of ecological revetment purification system includes several haydites, contains denitrifying bacteria on each haydite.Haydite With a variety of excellent performances, such as internal porous, huge specific surface area, density is small, high intensity and robustness, thus haydite has There is light, strong adsorption force, be easy to the features such as adhering to, is firm, is corrosion-resistant, is freeze proof of microorganism, when construction, denitrifying bacteria is consolidated It is scheduled in haydite;Denitrification layer 8 is located at 7 lower section of leached layer, has the function of guide water, further, since denitrification layer 8 is located at life State shore protection purification system bottommost, causes 8 dissolved oxygen concentration of denitrification layer extremely low, at the same haydite provided for microorganism it is abundant Attachment site, therefore it is the microbiologic population dominated, the nitrate nitrogen that leaching gets off easily to be formed in denitrification layer 8 with denitrifying bacteria It is converted into nitrogen under the action of denitrifying bacteria, achievees the purpose that denitrogenate.
The operation principle of the ecological revetment purification system of the present invention is as follows:
River on the bank can suitable plantation vegetation 10, the ecological revetment purification system of the present invention is built on river bank slope 1.
When the sewage for carrying area source pollutants enters the ecological revetment purification system, sewage carries out for the first time through vegetable layer 5 Dirt is cut, is fully absorbed later by buffering adsorption layer 6, sepiolite cashmere extends organic nitrogen in sewage, ammoniacal nitrogen and nitrate nitrogen and exists The residence time of adsorption layer 6 is buffered, the ammoniacal nitrogen in sewage quickly can be adsorbed and be fixed by the zeolite in buffering adsorption layer 6, Nitrate nitrogen NO is then converted by nitrobacteria3-- N, organic nitrogen first pass around amonifying bacteria and are converted into ammoniacal nitrogen NH4+- N is simultaneously It is fixed by zeolite, nitrate nitrogen NO is then converted by nitrobacteria again3-- N, nitrate nitrogen do not participate in any reaction in this stage, As buffering adsorption layer 6 and leached layer 7 are directly entered denitrification layer 8, effect of the nitrate nitrogen that leaching gets off in denitrifying bacteria Under be converted into nitrogen, achieve the purpose that denitrogenate.
The ecological revetment purification system of the present invention be it is a set of it is perfect denitrogenate filtration system, to the dirt of nitrogen content higher face source Contaminating object, there is the removal effect of highly significant, the filtration system to be stopped in filtration system by increasing external pollution of area source substance The time is stayed, so that pollutant is carried out sufficient biochemical reaction in each level of the shore protection system, is finally reached sewage purification Purpose.
It the above is only the preferred embodiment of the present invention, be not intended to restrict the invention, it is noted that this technology is led For the those of ordinary skill in domain, without departing from the technical principles of the invention, several improvements and modifications can also be made, These improvements and modifications also should be regarded as protection scope of the present invention.

Claims (9)

1. a kind of ecological revetment purification system is used for river bank slope (1), it is characterised in that:It is normal including being located at river bank slope (1) Shore protection more than water level, the shore protection include squeezing into the fender pile (2) of river bank slope (1) and consolidating base on river bank slope (1) Gabion (3), the fender pile (2) is made of side by side several monomer stakes and there are gap, the fender piles between adjacent monomer stake (2) the first impermeable stratum (4), the fender pile (2), gabion (3) and the first impermeable stratum (4) are provided between gabion (3) Reaction tank is surrounded, is set gradually from top to down in the reaction tank and is parallel to the vegetable layer (5) of river bank slope (1) slope aspect, inhales Attached layer and denitrification layer (8), the vegetable layer (5) and adsorption layer upper edge river bank slope (1) are if the vertical direction of slope aspect is provided with Reaction tank is divided into reaction tank several times by dry second impermeable stratum (9), second impermeable stratum (9) successively;
The adsorption layer includes that buffering adsorption layer (6) and leached layer (7), the buffering adsorption layer (6) are located at the leached layer (7) Upper side, the buffering adsorption layer (6) includes sepiolite cashmere and several zeolites, contains microbiologic population on each zeolite.
2. ecological revetment purification system according to claim 1, it is characterised in that:The vegetable layer (5) includes plantation layer With the water plant being planted on plantation layer, the plantation layer is mixed by soil and compost.
3. ecological revetment purification system according to claim 2, it is characterised in that:The plantation layer is pressed by soil and compost According to volume ratio (10-20):1 mixes.
4. ecological revetment purification system according to claim 2, it is characterised in that:The top of second impermeable stratum (9) End is higher than the plantation layer upper surface 3-5cm.
5. ecological revetment purification system according to claim 1, it is characterised in that:The volume of the sepiolite cashmere and zeolite Than being 1:(1-2).
6. ecological revetment purification system according to claim 1, it is characterised in that:The microbiologic population includes that ammonification is thin Bacterium and nitrobacteria.
7. ecological revetment purification system according to claim 1, it is characterised in that:The leached layer (7) includes several gravels The grain size of stone, the gravel is 5-20mm.
8. ecological revetment purification system according to claim 1, it is characterised in that:The denitrification layer (8) includes several Haydite contains denitrifying bacteria on each haydite.
9. ecological revetment purification system according to claim 1, it is characterised in that:The buffering adsorption layer (6), leached layer (7) and the thickness ratio of denitrification layer (8) is 2:1:1.
CN201511010421.3A 2015-12-29 2015-12-29 ecological revetment purification system Active CN105461072B (en)

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CN105461072B true CN105461072B (en) 2018-08-28

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Publication number Priority date Publication date Assignee Title
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

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JPH06180015A (en) * 1992-12-14 1994-06-28 Toshio Hiratsuka Greening work method for face of slope
KR100531920B1 (en) * 2003-12-02 2005-11-29 백순기 directly purification method of construction of rivers
CN1298934C (en) * 2004-12-27 2007-02-07 河海大学 Landscape type multi-stage stepwise artificial wetland protection slope forming method
CN101708897B (en) * 2009-11-26 2011-04-13 同济大学 Water treatment technology of inclined plane undercurrent artificial wetland
CN104234061A (en) * 2014-08-08 2014-12-24 青岛润国生态科技发展有限公司 Reinforced ecological concrete revetment and construction method thereof
CN205442797U (en) * 2015-12-29 2016-08-10 岭南新科生态科技研究院(北京)有限公司 Ecological embankment clean system

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