CN106186346A - A kind of biological floating foundation of micro-electricity and preparation method thereof and the method for ecological bed strengthened purification water body nitrogen phosphorus based on it - Google Patents
A kind of biological floating foundation of micro-electricity and preparation method thereof and the method for ecological bed strengthened purification water body nitrogen phosphorus based on it Download PDFInfo
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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
- C02F3/005—Combined electrochemical biological processes
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- C02F3/30—Aerobic and anaerobic processes
- C02F3/308—Biological phosphorus removal
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- 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
- C02F3/348—Biological treatment of water, waste water, or sewage characterised by the microorganisms used characterised by the way or the form in which the microorganisms are added or dosed
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Abstract
The invention discloses a kind of biological floating foundation of micro-electricity and preparation method thereof and the method for ecological bed strengthened purification water body nitrogen phosphorus based on it, it is characterized in that: the biological floating foundation of micro-electricity is in the preparation, first enrichment, separation and Culture screening nitrogen degradation dominant bacteria, then it is sequentially prepared bacterium charcoal alkene mixture, bacterium charcoal alkene embedded object, thus prepares the biological floating foundation of micro-electricity；The method utilizing the ecological bed strengthened purification water body nitrogen phosphorus of the biological floating foundation of micro-electricity, in being the conductive mesh that biological for micro-electricity floating foundation is inserted the biological floating bed lower section of MFC, the a plurality of conductor wire being connected with conductive mesh extends to lower floor in water body, the biological floating foundation of the micro-electricity of root system of plant parcel, the electric transmission of MFC release to conductive mesh, the biological floating foundation of micro-electricity and conductor wire.The present invention is by root system of plant, organic synergism of advantage denitrification microorganism group electricity micro-with MFC denitrogenation technology, and strengthening improves Water phosphorus ligands efficiency.
Description
Technical field
The present invention relates to water-treatment technology field, particularly relate to a kind of micro-biological floating foundation of electricity and ecological bed strengthening based on it
The method of purifying water body nitrogen phosphorus.
Background technology
China push forward comprehensively Ecological Civilization Construction system policy implement during, for because of source, face, rural area, city with
The pollution treatment of the rivers and lakes water body of factories and miness point-source pollution and restoration of the ecosystem, country has put into effect " ten, water ", has shown China's rivers lake especially
Pool water pollution improvement and ecosystem restoration are the important rings in the ecological resources system Construction of the whole nation.At present with regard to rivers and lakes
Water pollution is administered and has the most been innovated many technology, means and method:
Such as the patent of invention " purification method of a kind of aquaculture wastewater and based on the method biological floating bed
(ZL201310138547.3) " devising in the discharge conduit of aquaculture wastewater, set gradually biological floating bed, purifying surface district puts
Putting biologic packing material, some filter-feeding fishes are placed in middle level, and bottom placement haydite, as substrate, plants heavy aqueous plant above, logical
Qualified discharge after purifying targetedly.Patent " for soft plant floating bed (CN101190813) of shore protection Yu purification of water quality "
Disclosing a kind of is unit by plate-like monomer floating bed, and the utensil of knockdown artificial floating cultivation plant can cultivate one thereon
A little humidogenes or amphibious plant, constitute and a kind of can utilize plant battalion rich to lake, river, irrigation canals and ditches etc. in " floating bed " of water float
Fosterization water body realizes " biological cleaning ".Patent " a kind of biological floating bed and method (ZL201410649284.7) of purifying water body " is public
Biological floating bed the including opened plants basket, substrate, water plant and ball float, and substrate is placed in plantation basket, and water plant is planted at base
In matter, ball float is located at outside plantation basket；Substrate is made up of magnesium slag ceramic filtration ball, bentonite clay particle and zeolite, belongs to cellular inorganic
Material, the Organic substance in energy efficient absorption water body and part inorganic matter, and there is stronger microorganism affinity, improve microorganism
Biofilm efficiency；And make plantation basket periodically sink to water body neutralize float on the surface, so that substrate is alternately in aerobic ring
In border and anaerobic environment, beneficially aerobic microbiological and the growth and breeding of anaerobe, reach pollution treatment purpose.
And patent " a kind of biological floating bed (CN101811778A) being applicable to high-sediment large-flow rate water body " discloses by two
Individual floating bed unit is connected with each other and forms, and described floating bed unit includes that floating bed fixes bar, hollow pvc pipe, disappear wave row and gauze, floating bed
Fixing bar is by the some horizontally arranged fixing formation floating mats of hollow pvc pipe, and floating mat two ends are respectively arranged below with the wave row that disappears, under floating mat
Side's suspension is provided with internal package and contains the gauze of void column shape polyvinyl chloride ripple short-tube filling, and gauze is positioned at below the wave row that disappears.Specially
Profit " a kind of flexible ecological floating bed (CN101898833A) " discloses and is provided with bed body and cultivated plant, and bed body is provided with upper strata film and compiles
Weave cotton cloth and lower floor's film woven cloth, between upper strata film woven cloth and lower floor's film woven cloth, be provided with double-deck bubble chamber film, at bed
The surrounding of body is provided with buoyancy aid bag along edge, and bed body is provided with the culture hole (or field planting hole) for cultivated plant, in culture hole
Cultivated plant, sets retainer ring in bed body surrounding.
Above-mentioned two class patents can be categorized as ecological pollution treatment technology and floating bed building technology, though wherein floating bed flotation technique and basis
Invent relevant, but be not the core technology scope that the present invention relates to and require.The core of the present invention is ecological pollution treatment technology, although
The above-mentioned ecological pollution treatment technical patent authorized, simulates the basic circularly purifying mechanism of natural ecosystems the most better,
Achieve the good result of water body purification, but in practice operation, show a wretched insufficiency especially: to the purification efficiency of Water still
The lowest so that rivers and lakes water body is up to standard difficult.
Trace it to its cause: one be the water body environment near nature fluitante root system be open, it is impossible to meet ammonifiers, Asia
Therefore nitrifier, high-efficiency nitrifying bacterium growth and the varying environment condition being enriched with, even if adding microorganism colonization at root system of plant
Substrate, improves microorganism enrichment, but blocks because the conversion pathway of Water element exists, it is impossible to improve the removal to nitrogen and imitate
Rate.Two be fluitante root system in water body can the downwardly extending degree of depth limited, be typically limited to only shallow top layer, thus rivers and lakes,
The even middle lower layer of water body pollution of breeding water body etc. cannot use above-mentioned patented technology to realize purifying.
Summary of the invention
The present invention is to solve that prior art denitrogenates the problem that efficiency is difficult to improve, it is provided that a kind of biological floating foundation of micro-electricity and
Preparation method, the method is dominant bacteria and bamboo charcoal, the biomass Graphene of the nitrogen compound by degraded different molecular structures
The most mixed, embedding all mixed with sodium alginate-calcium carbonate embedding medium again, puts this and all mixes embedded object in dome-type pore-creating mould
In, again this mould is delayed in calcium chloride crosslinked fluid, after the demoulding continue crosslinking 10h, obtain transmitting the dome-type of electronics
The biological floating foundation of the micro-electricity of porous；This biological floating foundation of micro-electricity is utilizing nitrogen degradation dominant bacteria group efficient degradation to remove the same of Water
Time, also remove nitrite nitrogen in water body for MFC (microbiological fuel cell) strengthening and provide good conductive carrier.
The method that present invention simultaneously provides ecological bed strengthened purification water body nitrogen phosphorus based on micro-biological floating foundation of electricity, the method with
It is arranged in the MFC on the shallow top layer of water body biological floating bed for carrier, the above-mentioned biological floating foundation of micro-electricity is placed in this ecological bed lower section conduction
The a plurality of conductor wire being connected with conductive mesh in Wang can extend to lower floor in water body, Canna generalis Bailey is divided with root systems of plant such as Rhizoma Acori Gramineis
It is distributed between the biological floating foundation of micro-electricity, by root system of plant, effective combination of advantage denitrification microorganism group electricity micro-with MFC denitrogenation technology,
Can more efficiently implement the inventive method and improve the efficiency of denitrogenation dephosphorizing.
The present invention solves technical problem, adopts the following technical scheme that
The preparation method of a kind of biological floating foundation of micro-electricity, is characterized in carrying out as follows:
(1) enrichment, separation and Culture filter out the dominant bacteria of ammonification, nitrification, denitrification process: Klebsiella pneumoniae, β-
Proteobacteria Nitrosomonas, klebsiella oxytoca and Bacillus licheniformis；
(2) each dominant bacteria 1:1:1:1 in mass ratio is configured to mixed vaccine mud, then with cross the bamboo charcoal of 100 mesh sieves, biology
The equal mixture of matter Graphene in mass ratio 1～2:2:1 makes bacterium charcoal alkene mixture；Described bamboo charcoal is multiporous biological charcoal；
(3) described bacterium charcoal alkene mixture is cooled to the sodium alginate-calcium carbonate encapsulating solution of 35 DEG C through 130r/ with melting
Min stirs 15 minutes, prepares all mixed bacterium charcoal alkene embedded object；In described bacterium charcoal alkene embedded object, bacterium charcoal alkene mixture and sea
The mass ratio of sodium alginate is 1:1；In described sodium alginate-calcium carbonate encapsulating solution, the mass concentration of sodium alginate is 1%, carbon
Acid calcium is 3:100 with the mass ratio of sodium alginate；
(4) injecting in dome-type pore-creating mould by described bacterium charcoal alkene embedded object, mobile described mould delays into calcium chloride crosslinking
In solution, after 2h, in described crosslinker solution, tipping vibrating mould, with the embedded object that comes off, are removed mould and will immerse described friendship
Dome-type embedded object in connection solution continues solidification 10h in sending into 4 DEG C of cold rooms, prepare the dome-type porous biological floating foundation of micro-electricity；
The mass concentration of described calcium chloride crosslinker solution is 3%, pH=7.Described dome-type pore-creating mould is in hemispherical
Surface distributed has multiple short column vertically upward.
The present invention further discloses the biological floating foundation of micro-electricity prepared by above-mentioned preparation method.
The method that invention also provides ecological bed strengthened purification water body nitrogen phosphorus based on the above-mentioned biological floating foundation of micro-electricity, its
Feature is:
MFC is biological floating bed swims in the shallow top layer of water body, and described MFC is biological floating bed to be had with the floating bed for cultivated plant by MFC
Machine forms；Described MFC is microbiological fuel cell；
Below described floating bed, it is fixed with conductive mesh, and described conductive mesh is by the anode of conductive connecting with described MFC
Room is connected；Several biological floating foundation of micro-electricity it are placed with in described conductive mesh；Described floating bed is provided with plant culture cave；By force
Go the advantage denitrogenating phosphorus aquatic or hygrophyte (such as Canna generalis Bailey, Rhizoma Acori Graminei etc.) cultivate in as described in plant culture cave, and plant roots
System is deep in conductive mesh and wraps up the described biological floating foundation of micro-electricity；
The bottom of described conductive mesh extends to lower floor in water body by conductor wire；Described conductor wire and conductive mesh are flexible fine
Thin Graphene moulds line or steel wire.
The biological floating foundation of micro-electricity being positioned at the shallow top layer of water body utilizes the nitrogen superior strain of embedding under double oxygen, anaerobic environment
Decompose organic nitrogen, ammonia nitrogen and the inorganic nitrogen in water body, the degraded ammonia salt of output, nitrate and dissolved phosphorus organic active in water body,
Strengthening is distributed in absorbing of the root system of plant in the biological floating foundation of micro-electricity；Stephanoporate bamboo charcoal in the most described biological floating foundation of micro-electricity
Not only it was beneficial to microorganism colonization, but also had been growth of microorganism metabolism supplementary carbon source.
The electronics of described MFC release transmits to shallow water via conductive connecting, conductive mesh, the biological floating foundation of micro-electricity and conductor wire
Layer and lower floor in water body, be volatility nitrogen by harmful Nitrite transformation of Nitrosomas output under anaerobic environment in water body.
Compared with prior art, beneficial effects of the present invention is embodied in:
1, the biological floating foundation of micro-electricity of the present invention is by embedding charcoal, provides good anaerobism for anaerobe growth
Environment and metabolism carbon source, add microbial activity and biofilm bioaccumulation efficiency, effectively prevent root system of plant microorganism with
Current lose, and enhance the ammonification of Water pollutant, nitrification and denitrification process, are effectively increased the removal of Water phosphorus
Efficiency.Experimental result show the inventive method to nitrogen removal rate higher than prior art 8～15%, about reach 95%, to ammonia nitrogen
Clearance is higher than prior art about 10%, reaches more than 98%；To tp removal rate higher than prior art about 18%, reach 85% with
On.
2, the inventive method organically blends MFC micro-electricity denitrogenation technology, is passed by the biological floating foundation of electricity micro-in conductive mesh and net thereof
The defeated electronics discharged by MFC anode chamber so that near root system of plant, the nitrite in phytal zone is reduced into nitrogen；Simultaneously
By the conductor wire that is connected with conductive mesh by lower floor in electric transmission to water body, can be effectively by the nitrous acid in middle lower floor water body
Salt is reduced into nitrogen, and this is that prior art cannot realize；The clearance of nitrite is higher than prior art about 50%, reaches
More than 98%.Nitrite is to toxic property of aquatile such as fish and shrimp in water body, and therefore the inventive method is implemented on aquaculture
Water body can provide environmental benefit and economic benefit simultaneously, hence it is evident that is better than prior art.
Accompanying drawing explanation
Fig. 1 is the embodiment signal of the ecological bed strengthened purification Water phosphorus of the biological floating foundation of micro-electricity based on the present invention
Figure；
Label in figure: 1 be floating bed, 2 be plant culture cave, 3 be the salt bridge of MFC, 4 be the anode chamber of MFC, 5 for conductor wire,
6 it is conductive connecting, 7 is micro-biological floating foundation of electricity, 8 is conductive mesh.
Detailed description of the invention
Embodiment 1
The present embodiment prepares micro-biological floating foundation of electricity the most as follows:
The corresponding sewage of inoculation of medium, mud or mixing with soil liquid at all kinds of different components, separates bacterium after cultivation
Fall within the isolation medium of correspondence, by the dominant bacteria expanding, being enriched with, separate ammonification, nitrification, denitrification process
Kind: Klebsiella pneumoniae, β-Proteobacteria Nitrosomonas, klebsiella oxytoca and Bacillus licheniformis.
Stephanoporate bamboo charcoal is processed into fine grained, respectively fine grained bamboo charcoal, biomass Graphene is crossed 100 mesh sieves, sieve
Bamboo charcoal, Graphene are cleaned through deionized water and are dried；Above-mentioned four kinds of dominant bacteria 1:1:1:1 in mass ratio are configured to mixed vaccine
Mud, then mixed vaccine mud, bamboo charcoal, the equal mixture of biomass Graphene 1:2:1,1.5:2:1 the most in mass ratio are made bacterium charcoal alkene and mixed
Compound.
Calcium carbonate and sodium alginate after 3:100 mixes in mass ratio, are inserted in heating kettle and heated, add water and stir, complete
After CL sodium alginate, being cooled to, sodium alginate-calcium carbonate embedding that 35 DEG C of prepared sodium alginate concentrations are 1% is molten
Liquid；Above-mentioned bacterium charcoal alkene mixture is stirred 15 minutes through 130r/min with sodium alginate-calcium carbonate encapsulating solution (35 DEG C), preparation
Go out all mixed bacterium charcoal alkene embedded object.
Being injected in dome-type pore-creating mould by above-mentioned bacterium charcoal alkene embedded object, this mould mobile delays and into pH=7, mass concentration is
In the calcium chloride crosslinker solution of 3%, after 2h, in this crosslinker solution, tipping vibrating mould, with the embedded object that comes off, remove mould also
After continuing crosslinking curing 10h in the dome-type embedded object immersed in calcium chloride crosslinker solution is sent into 4 DEG C of cold rooms, prepare hemisphere
The biological floating foundation of the micro-electricity of type porous；This dome-type pore-creating mould is the hemisphere of a diameter of 2cm, and multiple hang down is distributed on hemisphere inner surface
Straight short column upwards.
The gained biological floating foundation product of micro-electricity is based on graphene conductive, hold concurrently oxygen advantage by the anaerobism embedded based on stephanoporate bamboo charcoal
Microorganism group supplementary carbon source, based on superior microorganism group strengthened purification Water phosphorus.
In being embodied as, as it is shown in figure 1, the side of ecological bed strengthened purification water body nitrogen phosphorus based on the above-mentioned biological floating foundation of micro-electricity
Method, is divided into the strengthening of water body shallow top layer nitrogen phosphorus to remove and in water body, the strengthening of lower floor's nitrite nitrogen is removed.
Biological floating bed as carrier with the MFC of floating layout on the shallow top layer of water body, MFC is biological floating bed by MFC (Microbial fuel
Battery) and floating bed 1 organic composition of confession cultivated plant.Below floating bed 1, it is fixed with conductive mesh 8, and conductive mesh 8 is by conduction even
Wiring 6 is connected with the anode chamber 4 of MFC；Several dome-types biological floating foundation 7 of micro-electricity it is placed with in conductive mesh；In floating bed 1
Being provided with plant culture cave 2, the plant culture such as Canna generalis Bailey, Rhizoma Acori Graminei, Radix hemerocalis plicatae, Herba Lythri Salicariae is in plant culture cave 2, and root system of plant
In being deep into conductive mesh 8 and wrap up the biological floating foundation 7 of micro-electricity；The bottom of conductive mesh 8 extends to lower floor in water body by conductor wire 5；
The biological floating foundation 7 of micro-electricity being positioned at the shallow top layer of water body utilizes the nitrogen superior strain of embedding at double oxygen, anaerobic environment
Organic nitrogen, ammonia nitrogen and inorganic nitrogen in lower decomposition water body, the degraded ammonia salt of output, nitrate and the organic work of dissolved phosphorus in water body
Changing, be effectively increased the root system of plant absorption rate to nitrogen phosphorus, the stephanoporate bamboo charcoal in the biological floating foundation 7 of the most micro-electricity is the most micro-
Bio-film colonization, create excellent anaerobic environment, be again growth of microorganism metabolism supplementary carbon source, enhance microbial activity.
Glucose, glucose and organic sludge mixture or glucose and plant straw is injected in the anode chamber 4 of MFC
Grain mixture, produces under anaerobic environment during electricity fermentable bottom exploded produce go out methane, carbon dioxide and discharges electronics,
Electronics transmits to conductive mesh 8 floating foundation 7 biological with micro-electricity through conductive connecting 6, now near nitrous acid under anaerobic environment in water body
The nitrite of bacterium output obtains electronics and is reduced into volatile nitrogen.As can be seen here, micro-electricity of superior microorganism group is embedded
Biological floating foundation 7, MFC denitrogenation technology and organic synergism of nitrophilous phosphorus plant, efficient hardening improves nitrogen in shallow surface water
The removal efficiency of phosphorus.
In water body, lower floor is distributed a plurality of conductor wire 5 being connected with conductive mesh 8, and the electronics of MFC anode chamber 4 release is through leading
Electrical network 8 transmits to conductor wire 5, and the nitrite being now placed in conductor wire 5 surrounding water obtains electronics and is reduced into volatility
Nitrogen, it is achieved that the strengthening of nitrite harmful in centering lower floor water body is removed.
Experimental result show the inventive method to nitrogen removal rate higher than prior art 8～15%, about reach 95%, to ammonia
Nitrogen removal efficiency is higher than prior art about 10%, reaches more than 98%, tp removal rate is higher than prior art about 18%, reaches 85%
Above, the clearance to nitrite is higher than prior art about 50%, reaches more than 98%.Specific experiment is as follows:
Experiment 1
With 70% south Fei river in Anhui Province water formulated acquisition experimental water water quality, each index is as shown in table 1.1:
Water quality (mg/L) tested by table 1.1
| Index | Total phosphorus | Total nitrogen | Dissolved oxygen | Ammonia nitrogen | Nitrate | Nitrite |
| Water quality | 1.85 | 12.0 | 2.9 | 10.3 | 0.9 | 0.027 |
Test and fill through microbial acclimation, the simulation of reactor water body natural fluctuation and the illumination temperature more than 20 DEG C
Under the conditions of foot, float with hygrophyte Canna generalis Bailey, Radix hemerocalis plicatae group structure ecology with the bacterium charcoal alkene of the mass ratio 1.5:2:1 biological floating foundation of micro-electricity
Bed, to or without micro-biological floating foundation+MFC device of electricity two groups of different ecological floating beds (i.e. Canna generalis Bailey and the biological floating bed A of Radix hemerocalis plicatae with
The biological floating bed B of micro-biological floating foundation of electricity based on the present invention) experimental system carries out continuous 17 days running, it is thus achieved that contrast and experiment
Such as table 1.2.
The different floating bed clearance (%) to nitrogen phosphorus of 1.2 liang of table group
Experiment 2
Through the experimental water water quality of human configuration, each index is as shown in table 2.1:
Water quality (mg/L) tested by table 2.1
| Index | Total nitrogen | Ammonia nitrogen | Total phosphorus |
| Water quality | 9.98 | 9.35 | 2.96 |
Test through microbial acclimation, reactor water body natural flow and the illumination abundance bar temperature more than 20 DEG C
Under part, biological floating bed, to having with the bacterium charcoal alkene of the mass ratio 1:2:1 biological floating foundation of micro-electricity and hygrophyte Canna generalis Bailey, Rhizoma Acori Graminei group structure
Or without micro-biological floating foundation+MFC device of electricity two groups of different ecological floating beds (i.e. Canna generalis Bailey and the biological floating bed A of Rhizoma Acori Graminei with based on this
The bright biological biological floating bed B of floating foundation of micro-electricity) experimental system carries out running 10 days continuously under HRT=5d state, it is thus achieved that contrast experiment
Result such as table 2.2.
The different floating bed clearance (%) to nitrogen phosphorus of 2.2 liang of table group
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any amendment, equivalent and the improvement etc. made within god and principle, should be included within the scope of the present invention.
Claims (5)
1. a preparation method for the biological floating foundation of micro-electricity, is characterized in that carrying out as follows:
(1) enrichment, separation and Culture filter out the dominant bacteria of ammonification, nitrification, denitrification process: Klebsiella pneumoniae, β-deformation
Bacterium door Nitrosomonas, klebsiella oxytoca and Bacillus licheniformis；
(2) each dominant bacteria 1:1:1:1 in mass ratio is configured to mixed vaccine mud, then with cross the bamboo charcoal of 100 mesh sieves, biomass stone
The ink equal mixture of alkene in mass ratio 1～2:2:1 makes bacterium charcoal alkene mixture；Described bamboo charcoal is multiporous biological charcoal；
(3) described bacterium charcoal alkene mixture is cooled to the sodium alginate-calcium carbonate encapsulating solution of 35 DEG C through 130r/min with melting
Stir 15 minutes, prepare all mixed bacterium charcoal alkene embedded object；In described bacterium charcoal alkene embedded object, bacterium charcoal alkene mixture and alginic acid
The mass ratio of sodium is 1:1；In described sodium alginate-calcium carbonate encapsulating solution, the mass concentration of sodium alginate is 1%, calcium carbonate
It is 3:100 with the mass ratio of sodium alginate；
(4) injecting in dome-type pore-creating mould by described bacterium charcoal alkene embedded object, mobile described mould delays into calcium chloride crosslinker solution
In, after 2h, in described crosslinker solution, tipping vibrating mould, with the embedded object that comes off, are removed mould and will to immerse described crosslinking molten
Dome-type embedded object in liquid continues solidification 10h in sending into 4 DEG C of cold rooms, prepare the dome-type porous biological floating foundation of micro-electricity；Described
The mass concentration of calcium chloride crosslinker solution is 3%, pH=7.
The preparation method of the biological floating foundation of micro-electricity the most according to claim 1, is characterized in that: described dome-type pore-creating mould is
Inner surface at hemispherical is distributed multiple short column vertically upward.
3. the biological floating foundation of micro-electricity prepared by preparation method described in a claim 1 or 2.
4. a method for ecological bed strengthened purification water body nitrogen phosphorus based on the biological floating foundation of electricity micro-described in claim 3, its feature
It is:
MFC is biological floating bed swims in the shallow top layer of water body, and described MFC is biological floating bed organic with the floating bed (1) for cultivated plant by MFC
Composition；Described MFC is microbiological fuel cell；
It is fixed with conductive mesh (8) in described floating bed (1) lower section, and described conductive mesh (8) passes through conductive connecting (6) with described
The anode chamber (4) of MFC is connected；Several biological floating foundation (7) of micro-electricity it are placed with in described conductive mesh；In described floating bed (1)
It is provided with plant culture cave (2), goes by force the advantage denitrogenating phosphorus aquatic or hygrophyte is cultivated in described plant culture cave (2),
And root system of plant is deep in conductive mesh (8) and wraps up the described biological floating foundation (7) of micro-electricity；
The bottom of described conductive mesh (8) extends to lower floor in water body by conductor wire (5)；
The biological floating foundation (7) of micro-electricity being positioned at the shallow top layer of water body utilizes each dominant bacteria of embedding to decompose under double oxygen, anaerobic environment
Organic nitrogen, ammonia nitrogen and inorganic nitrogen in water body, the degraded ammonia salt of output, nitrate and dissolved phosphorus organic active in water body, strengthening
Nitrogen phosphorus is absorbed by the root system of plant being distributed in the biological floating foundation (7) of micro-electricity；In the most described biological floating foundation (7) of micro-electricity
Stephanoporate bamboo charcoal had not only been beneficial to microorganism colonization, but also had been growth of microorganism metabolism supplementary carbon source；
The electronics of described MFC release passes via conductive connecting (6), conductive mesh (8), the biological floating foundation (7) of micro-electricity and conductor wire (5)
Transport to the shallow top layer of water body and lower floor in water body, be volatility nitrogen by the Nitrite transformation in water body.
Method the most according to claim 4, it is characterised in that: described conductive mesh (8) and described conductor wire (5) they are flexible fine
Thin Graphene moulds line or steel wire.
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