CN209537098U - A kind of bionical reed root hole coupling denitrification denitrification system - Google Patents
A kind of bionical reed root hole coupling denitrification denitrification system Download PDFInfo
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- CN209537098U CN209537098U CN201822083091.6U CN201822083091U CN209537098U CN 209537098 U CN209537098 U CN 209537098U CN 201822083091 U CN201822083091 U CN 201822083091U CN 209537098 U CN209537098 U CN 209537098U
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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
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
The utility model discloses a kind of bionical reed root hole coupling denitrification denitrification systems, including being connected to the bionical reed formed by hollow fiber conduit, containing bionical stem and the multilevel bionic root hole system for being connected to its bottom end and dissipating, including level-one root, second level root and three-level root, the surface of multilevel bionic root hole system is attached with biomembrane, and surface is attached with activated sludge again, is filled with activated sludge at different levels gaps, at different levels distal openings, level-one root are connected to blower device.The system has the sludge of huge active surface, aerobic-anaerobic structure and abundant bioactivity, and removal the high-efficient of black and odorous water nitrogen pollutant, timeliness are lasting.On the one hand the system gives full play to the advantage of root hole micro-structure, on the other hand reinforce the biologica denitrification of microorganism, give full play to the denitrification efficiency of root hole structural system.The technical solution of the utility model can provide a new resolving ideas for China's polluted-water and the improvement of deposit polluted by nitrogen.
Description
Technical field
The utility model belongs to environmental technology field, and in particular to one kind is used for heavily contaminated river or serious rice-nutrient lake
The bionical reed root hole coupling denitrification denitrification system and its water remediation method for mooring local stench water remediation, more particularly to
Deposit ammonia nitrogen and the restorative procedure of ammonia nitrogen pollution in water body when serious polluted by nitrogen occur for a kind of lake and reservoir Drinking w ater or landscape water body.
Background technique
In lakeside wetland, reed root system since it is with huge underground rhizomes and secondary root abundant and lateral root,
They are criss-cross in deposit, form large-scale netted underground root hole system.It is positioned at reed root system and soil it
Between " the multimedium system " that is made of water, gas, soil, microorganism and root system of plant, good multi-level cross pipe pore size distribution
Feature has apparent water conservancy diversion to the space propagation transition process of pollutant and integrates enrichment, not only in environmental contaminants
Migration, degradation and soil Preferential flow, solute transport etc. play an important role, but also it is same to be considered as root system of plant
One important " interface " between soil, important role is play in root hole microecosystem.Reed root hole system due to
Its hole point generated in deposit accounts for the largest percentage and bioactivity is high, and the redox heterogeneous environment of construction is lake
Shore is violent with Wetland Sediments coupling denitrification process exception and the region of the relatively large hot spot of the scale of construction.Inquire into Wetland Sediments
Root hole " multimedium system " structure and environmental characteristic, the network analysis microenvironment to the regulating and controlling effect of deposit nitrogen cycle, for
Full appreciation and using wetland root hole ecological regulation and control function, improve water environment treatment have a very important significance.
Improvement about Sediments pollution at present is concentrated mainly on deposit nitrogen phosphorus and organic matter, heavy metal pollution disposition
Aspect, water body coupling denitrification denitrification process is the main denitrification process of polluted bed mud, even up to total in individual hot spot regions
90% or more denitrification denitrogenation total amount.
Utility model content
The utility model is intended to provide a kind of improvement water body and the bionical reed root hole coupling denitrification of bed mud polluted by nitrogen is de-
Nitrogen system, can be used for that city river sediment pollution is serious, lakeside zone algae accumulation area, and to the sensitive waters of heavily contaminated as drunk
With water head site and landscape water.The purpose administered is synchronized up to above-mentioned water body, substrate nitrogen dye object using the utility model.
In order to achieve the above objectives, the utility model uses following technical scheme:
A kind of bionical reed root hole coupling denitrification denitrification system,
Including being connected to the bionical reed formed by several hollow fiber conduits, the bionical reed includes positioned at the upright of upper layer
Bionical stem and the multilevel bionic root hole that is connected to the bottom end of the bionical stem and is dissipated centered on the bottom end of the bionical stem
System,
The multilevel bionic root hole system includes several level-one roots, several second level roots and several three-level roots, the level-one root
It is directly connected in the bottom end of the bionical stem, second level root one end is connected to the side wall of the level-one root, the three-level root one
End is connected to the side wall of the second level root, the other end of the level-one root, the other end of the second level root and the three-level root
Another end opening setting,
The surface of the multilevel bionic root hole system is attached with biomembrane, the surface attachment of the multilevel bionic root hole system
Active sludge is filled with activated sludge in the gap of the level-one root, second level root and three-level root,
The level-one root is connected to blower device.
The bionical reed root hole coupling denitrification denitrification system is using bionical reed root hole system as core, by water, gas, work
Property sludge, microorganism and bionical root hole composition " multimedium coupling denitrification denitrogenation system ".
Further, the packing volume of the activated sludge is that space occupied by the multilevel bionic root hole system is overall
Long-pending 35 ~ 55%.
Further, the internal diameter of the level-one root is 2 ~ 5mm.The region of level-one root is the main oxygen-rich area of root hole system.
Further, the internal diameter of the second level root is 20 ~ 2000 μm.This part is aerobic amphimicrobian film micro area.
Further, the internal diameter of the three-level is less than 20 μm.This part root hole is mostly anaerobic zone.Oxygen-enriched anaerobism habitat is micro-
Environment is that frequent nitration denitrification carries out hot spot region.Being carried out during operation between root hole bionic system using blower device
Formula of having a rest blast aeration constructs the bionic system of oxygen-enriched-anaerobism micro-structure using the root hole and gas regulation of different pore size.
Further, the density of the level-one root and the second level root is 0.5 ~ 0.85g/cm3。
Further, the density of the three-level root is 0.8 ~ 1.25g/cm3。
Further, the level-one root and second level root junction or second level root are connected to slow with the junction of three-level root
The exit of air-impulse bag, the buffer air bag is provided with air valve.For adjusting the flowing of root hole gas and exchange rate.
Further, the close three-level root of the three-level root replaces change with the pipe diameter size of the part of second level root junction
Change, form several bulging capsules, enhances intermittent facultative aerobic-anaerobic microcell.
Further, the biomembrane can be attached to the table of the multilevel bionic root hole system with conventional method in that art
Face can also be attached to the surface of the multilevel bionic root hole system by the following method:
(1-1) surface active: the multilevel bionic root hole system is placed in after being impregnated in the suspension of surface modifier
Washing, drying；Preferred surface modifier is percarbonic acid calcium, Na2SiO4Or one of chitosan or a variety of；
The attachment of (1-2) biomembrane: by step (1-1) treated multilevel bionic root hole system activated sludge suspension
In carry out flowing aeration culture, it is carried out domestication cultivate behind several days to get.
Further, activated sludge commonly used in the art can be used in the activated sludge, can also be used by such as lower section
The activated sludge that method is prepared:
(2-1) takes the reed wetland deposit after air-drying, and adds floating heart or the fresh cauline leaf of water peanut after crushing and mixes；
(2-2) in 25 ~ 30 DEG C of fermented and cultureds, periodically blast aeration 3h, is during which stirred repeatedly and is sprayed 1mol/ daily
LCa(NO3)2And MgCl2Aqueous solution, each dosage is according to 5 ~ 15ml/kg sludge, and after culture 70 days, addition chitosan is molten
Liquid, dosage are 50 ~ 120 mg/kg sludge, are stirred and evenly mixed repeatedly, after common fermentation 90 days to obtain the final product.
Further, the hollow fiber conduit is carbon fiber or glass fibre, preferably carbon fiber.
Further, the total length of the level-one root: the total length of the second level root: the total length of the three-level root is 1:
1.5~4:2.5~5。
Further, the bionical reed root hole coupling denitrification denitrification system further includes bionical aerial root, described bionical
Aerial root is hollow fiber conduit, and the bionical aerial root is connected to the eustipes part of the bionical stem, and close to water sludge interface.
Heavy polluted water is repaired using bionical reed root hole coupling denitrification denitrification system provided by the utility model
It is multiple, the system can be placed in water body, be ventilated using conventional method in that art into the system, it can also will be above-mentioned bionical
Reed root hole coupling denitrification denitrification system is placed in water body, provides air, O by the blower device2、O3Or N2One of
Or it is a variety of, air blast flux is that water body is just made to generate continuous micro-bubble, 2 ~ 5h of daily air blast ventilation.
The utility model has the beneficial effects that:
(1) the netted special construction of multistage of the bionical reed root hole system of the utility model design, using aeration, regulation
Root hole internal system aerobic-anaerobic situation, the in addition doughnut of multistage different pore size are created in bionical root hole system abundant
Anaerobism and aerobic domain structure.The two combination can excavate the maximum potential of root hole aerobic-anaerobic down regulation coupling denitrification.
(2) engineering construction technical matters process relative simplicity, technology strong operability involved in the utility model, general
The reparation that river carries out ecological engineering can be achieved.The utility model relates to repair materials such as carbon fiber, activated sludge, Xing
Dish, water peanut etc. are Eco-friendly material, and cheap, and material source is wide, are suitable for the ecological engineering in river regulation
Application in practice.
(3) the disposition period of deposit involved in the utility model deposit polluted by nitrogen preconditioning technique is short, it is opposite to take effect
Comparatively fast, deposit original position phytoremediation can be realized at once after deposit pretreatment, can realize the reparation to water pollution in current year
Target.
The bionical reed root hole coupling denitrification denitrification system of the utility model research and development, on the one hand gives full play to the micro- knot of root hole
On the other hand the advantage of structure reinforces the biologica denitrification of microorganism, gives full play to the denitrification efficiency of root hole structural system.This reality
With novel technical solution a new resolving ideas can be provided for China's polluted-water and the improvement of deposit polluted by nitrogen.
The utility model fully considers in Technical Design utilizes deposit-families of plant in aquatic ecosystem itself
Self-regulating function strengthens the denitrification of deposit coupling denitrification.Technological merit is embodied in: it is efficiently good to create deposit
The habitat conditions of oxygen anaerobism is rejected big in deposit first in such a way that surface deposit natural reaeration aoxidizes and promotes volatilization
Part volatile sulfur component.The more untreated Wetland Sediments denitrification denitrogenation efficiency of the removal rate for the first time of the utility model meets
General river drift carries out the demand of plant growth of restoration of the ecosystem.It is greater than 70% by addition deposit modifying agent again.Adminicle
The joint disposals measure such as reason reoxygenation or exposure nitrogen treatment, activated sludge and the supply of aquatic macrophyte carbon source carrys out converted in-situ and disappears
Except the purpose of remaining polluted by nitrogen.
Technical solution provided by the utility model can carry out long-acting reparation to black smelly bed mud sulphide staining.It is being sunk
After the pretreatment of product object, ammonia nitrogen root system is coerced under anaerobism habitat during removal or reduction plant growth, and utility model is abundant
Using the self-regulating function of aquatic ecosystem, improve the physico-chemical property of deposit, passes through ecosystem internal composition structure
Adjustment, it is final to realize that deposit polluted by nitrogen disposes the purpose to circulate benignly in aquatic ecosystem.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of bionical reed root hole coupling denitrification denitrification system described in the utility model.
Fig. 2 is the structural schematic diagram of multilevel bionic root hole system described in the utility model.
Fig. 3 is the top view of bionical reed root hole coupling denitrification denitrification system described in the utility model.
Wherein, 1 is bionical stem, and 2 be level-one root, and 3 be second level root, and 4 be three-level root, and 5 be blower device, and 6 be buffer air bag,
7 be air valve, and 8 be bulging capsule, and 9 be bionical aerial root, and 10 be activated sludge.
Specific embodiment
The technical solution of the utility model is described in detail with Detailed description of the invention combined with specific embodiments below.This is practical
Novel protection scope is not limited with specific embodiment, but is defined in the claims.
Embodiment 1
According to the utility model, polluted by nitrogen is carried out to certain artificial swamp in jiangsu wuxi and is administered, specific embodiment party
Case is as follows:
Bionical reed root hole coupling denitrification denitrification system is constructed, which includes being made of the connection of several hollow fiber conduits
Bionical reed, the bionical reed include positioned at upper layer upright bionical stem and be connected to the bionical stem bottom end and with
The multilevel bionic root hole system dissipated centered on the bottom end of the bionical stem,
The multilevel bionic root hole system includes several level-one roots, several second level roots and several three-level roots, the level-one root
It is directly connected in the bottom end of the bionical stem, second level root one end is connected to the side wall of the level-one root, the three-level root one
End is connected to the side wall of the second level root, the other end of the level-one root, the other end of the second level root and the three-level root
Another end opening setting,
The surface of the multilevel bionic root hole system is attached with biomembrane, the surface attachment of the multilevel bionic root hole system
Active sludge is filled with activated sludge in the gap of the level-one root, second level root and three-level root,
The level-one root is connected to blower device.
The bionical reed root hole coupling denitrification denitrification system is using bionical reed root hole system as core, by water, gas, work
Property sludge, microorganism and bionical root hole composition " multimedium coupling denitrification denitrogenation system ".
The packing volume of the activated sludge is 40% of space total volume occupied by the multilevel bionic root hole system.
The internal diameter of the level-one root is 2 ~ 5mm.The region of level-one root is the main oxygen-rich area of root hole system.
The internal diameter of the second level root is 20 ~ 2000 μm.This part is aerobic amphimicrobian film micro area.
The internal diameter of the three-level root is less than 20 μm.This part root hole is mostly anaerobic zone.Oxygen-enriched anaerobism habitat microenvironment is
Frequent nitration denitrification carries out hot spot region.Intermittent drum is carried out using blower device to root hole bionic system during operation
Wind aeration, the bionic system of oxygen-enriched-anaerobism micro-structure is constructed using the root hole and gas regulation of different pore size.
The density of the level-one root and the second level root is 0.5 ~ 0.85g/cm3。
The density of the three-level root is 0.8 ~ 1.25g/cm3。
The level-one root is connected to buffer air bag with the junction of three-level root with second level root junction or second level root, institute
The exit for stating buffer air bag is provided with air valve.For adjusting the flowing of root hole gas and exchange rate.
The close three-level root of the three-level root replaces variation with the pipe diameter size of the part of second level root junction, is formed several
Drum capsule, enhances intermittent facultative aerobic-anaerobic microcell.
The biomembrane is the surface for being attached to the multilevel bionic root hole system by the following method:
(1-1) surface active: the multilevel bionic root hole system is placed in after being impregnated in the suspension of surface modifier
Washing, drying；Preferred surface modifier is percarbonic acid calcium, Na2SiO4Or one of chitosan or a variety of；
The attachment of (1-2) biomembrane: by step (1-1) treated multilevel bionic root hole system activated sludge suspension
In carry out flowing aeration culture, it is carried out domestication cultivate behind several days to get.
The activated sludge is prepared by the following method:
(2-1) takes the reed wetland deposit after air-drying, and adds floating heart or the fresh cauline leaf of water peanut after crushing and mixes；
(2-2) in 25 ~ 30 DEG C of fermented and cultureds, periodically blast aeration 3h, is during which stirred repeatedly and is sprayed 1mol/ daily
LCa(NO3)2And MgCl2Aqueous solution, each dosage is according to 5 ~ 15ml/kg sludge, and after culture 70 days, addition chitosan is molten
Liquid, dosage are 50 ~ 120 mg/kg sludge, are stirred and evenly mixed repeatedly, after common fermentation 90 days to obtain the final product.
The hollow fiber conduit is carbon fiber.
The total length of the level-one root: the total length of the second level root: the total length of the three-level root is 1:4:5.
The bionical reed root hole coupling denitrification denitrification system further includes bionical aerial root, during the bionical aerial root is
Hollow fiber pipe, the bionical aerial root are connected to the eustipes part of the bionical stem, and close to water sludge interface.
Wuxi rural area river black and odorous water is handled using the bionical reed root hole system of above-mentioned denitrogenation, the river is by rural area point
Dissipate resident's sanitary sewage it is in line enter river, water body polluted by nitrogen is serious, and Dissolved Oxygen in Water is low, water body ammonia nitrogen, total nitrogen are respectively 25mg/L,
45mgmg/L.Dispersion resident's sanitary sewage is pre-processed using Tthe utility model system, then treated, and water enters river
Road is respectively 80% He to ammonia nitrogen and total nitrogen average removal rate through monitoring in continuous March, discovery the utility model significant effect
85%, water quality is obviously improved after processing.
Embodiment 2
According to the utility model, polluted by nitrogen is carried out to certain artificial swamp in jiangsu wuxi and is administered, specific embodiment party
Case is as follows:
The bionical reed root hole coupling denitrification denitrification system that the present embodiment 2 uses is distinguished compared to the examples, to be only that,
The packing volume of activated sludge is 35% of space total volume occupied by multilevel bionic root hole system, used doughnut
Pipe is glass fibre, and the total length of level-one root: the total length of second level root: the total length of three-level root is 1:1.5:2.5.
Wuxi rural area river black and odorous water is handled using the bionical reed root hole system of above-mentioned denitrogenation, the river is by rural area point
Dissipate resident's sanitary sewage it is in line enter river, water body polluted by nitrogen is serious, and Dissolved Oxygen in Water is low, water body ammonia nitrogen, total nitrogen are respectively 25mg/L,
50mgmg/L.Dispersion resident's sanitary sewage is pre-processed using Tthe utility model system, then treated, and water enters river
Road is being disposed sewage effluent using this system, carries out continuous monitoring in June to water outlet nitrogen pollutant.It was found that this is practical new
Type significant effect is respectively 85% and 90% to ammonia nitrogen and total nitrogen average removal rate, and water quality polluted by nitrogen situation is obviously improved after processing.
Embodiment 3
According to the utility model, polluted by nitrogen is carried out to certain artificial swamp in jiangsu wuxi and is administered, specific embodiment party
Case is as follows:
The bionical reed root hole coupling denitrification denitrification system that the present embodiment 3 uses is distinguished compared to the examples, to be only that,
The packing volume of activated sludge is 55% of space total volume occupied by multilevel bionic root hole system, used doughnut
Pipe is glass fibre, and the total length of level-one root: the total length of second level root: the total length of three-level root is 1:2:4.
Wuxi rural area river black and odorous water is handled using the bionical reed root hole system of above-mentioned denitrogenation, the river is by rural area point
Dissipate resident's sanitary sewage it is in line enter river, water body polluted by nitrogen is serious, and Dissolved Oxygen in Water is low, water body ammonia nitrogen, total nitrogen are respectively 45mg/L,
72mgmg/L.Dispersion resident's sanitary sewage is pre-processed using Tthe utility model system, then treated, and water enters river
Road is being disposed sewage effluent using this system, carries out continuous monitoring in June to water outlet nitrogen pollutant.It was found that ammonia nitrogen and
Total nitrogen average removal rate is respectively 90% and 92%, and water quality polluted by nitrogen situation is obviously improved after processing.
Claims (11)
1. a kind of bionical reed root hole coupling denitrification denitrification system, which is characterized in that including being connected to by several hollow fiber conduits
The bionical reed of composition, the bionical reed include the upright bionical stem for being located at upper layer and the bottom end for being connected to the bionical stem
And the multilevel bionic root hole system dissipated centered on the bottom end of the bionical stem,
The multilevel bionic root hole system includes several level-one roots, several second level roots and several three-level roots, and the level-one root is direct
It is connected to the bottom end of the bionical stem, second level root one end is connected to the side wall of the level-one root, and three-level root one end connects
Be connected to the side wall of the second level root, the other end of the level-one root, the other end of the second level root and the three-level root it is another
End opening setting,
The surface of the multilevel bionic root hole system is attached with biomembrane, and the surface of the multilevel bionic root hole system is attached with work
Property sludge, activated sludge is filled in the gap of the level-one root, second level root and three-level root,
The level-one root is connected to blower device.
2. bionical reed root hole coupling denitrification denitrification system according to claim 1, which is characterized in that the activity is dirty
The packing volume of mud is 35 ~ 55% of space total volume occupied by the multilevel bionic root hole system.
3. bionical reed root hole coupling denitrification denitrification system according to claim 1, which is characterized in that the level-one root
Internal diameter be 2 ~ 5mm.
4. bionical reed root hole coupling denitrification denitrification system according to claim 1, which is characterized in that the second level root
Internal diameter be 20 ~ 2000 μm.
5. bionical reed root hole coupling denitrification denitrification system according to claim 1, which is characterized in that the three-level root
Internal diameter less than 20 μm.
6. bionical reed root hole coupling denitrification denitrification system according to claim 1, which is characterized in that the level-one root
Density with the second level root is 0.5 ~ 0.85g/cm3, the density of the three-level root is 0.8 ~ 1.25g/cm3。
7. bionical reed root hole coupling denitrification denitrification system according to claim 1, which is characterized in that the level-one root
Buffer air bag, the exit of the buffer air bag are connected to the junction of three-level root with second level root junction or second level root
It is provided with air valve.
8. bionical reed root hole coupling denitrification denitrification system according to claim 1, which is characterized in that the three-level root
Close three-level root replace variation with the pipe diameter size of the part of second level root junction, form several bulging capsules.
9. bionical reed root hole coupling denitrification denitrification system according to claim 1, which is characterized in that the hollow fibre
Dimension pipe is carbon fiber or glass fibre.
10. bionical reed root hole coupling denitrification denitrification system according to claim 9, which is characterized in that described hollow
Fibre pipe is carbon fiber.
11. bionical reed root hole coupling denitrification denitrification system according to claim 1, which is characterized in that the level-one
The total length of root: the total length of the second level root: the total length of the three-level root is 1:1.5 ~ 4:2.5 ~ 5.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109368814A (en) * | 2018-12-12 | 2019-02-22 | 中国科学院南京地理与湖泊研究所 | Bionical reed root hole coupling denitrification denitrification system and heavy polluted water restorative procedure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109368814A (en) * | 2018-12-12 | 2019-02-22 | 中国科学院南京地理与湖泊研究所 | Bionical reed root hole coupling denitrification denitrification system and heavy polluted water restorative procedure |
| CN109368814B (en) * | 2018-12-12 | 2023-09-12 | 中国科学院南京地理与湖泊研究所 | Bionic reed root hole coupling denitrification system and heavy pollution water body restoration method |
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