CN109879402A - The Bioelectrochemical device and method of coupling purification cultivating pool bed mud and water body - Google Patents
The Bioelectrochemical device and method of coupling purification cultivating pool bed mud and water body Download PDFInfo
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- CN109879402A CN109879402A CN201910227278.5A CN201910227278A CN109879402A CN 109879402 A CN109879402 A CN 109879402A CN 201910227278 A CN201910227278 A CN 201910227278A CN 109879402 A CN109879402 A CN 109879402A
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- bioelectrochemistry
- bed mud
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Classifications
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
Landscapes
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses the Bioelectrochemical devices of a kind of coupling purification cultivating pool bed mud and water body.Device includes: the bioelectrochemistry anode in cultivating pool bed mud, floats on the bioelectrochemistry cathode on cultivating pool water body, is connected between bioelectrochemistry anode and bioelectrochemistry cathode by conducting wire；Wherein, the bioelectrochemistry anode includes two metal meshes, and the activated carbon-fiber felt being clipped between two metal meshes；The bioelectrochemistry cathode includes metal support network, and conductive fiber cotton or conductive sponge, planting aquatic plants are covered in metal support network.The invention also discloses the methods using device the coupling purification cultivating pool bed mud and water body.The present invention in cultivating pool by constructing bioelectrochemical system, utilize the difference of oxidation-reduction potential in bed mud and water body, strengthen the degradation and mineralising of organic matter in bed mud, promote the removal of the denitrification and pollutant of nitrate nitrogen in water body, realizes sludge reduction, innoxious and purification of water quality in situ.
Description
Technical field
The invention belongs to field of environment protection, in particular to a kind of bioelectricity of coupling purification cultivating pool bed mud and water body
The device and method of chemistry.
Background technique
Chinese Waters are wide, and it is to be engaged in aquaculture country with the longest history in the world that aquatic resources type is abundant
One.In recent years, with the continuous improvement of economic level, the national demand to aquaculture products is also growing day by day, therefore aquatic products
Aquaculture is grown rapidly.However, the culture fishery of high speed development is also along with many environmental problems.Most typical environment
Pollution sources are residual bait and aquatic livestock metabolin in aquaculture, according to statistics, in the feeding that fish culture process is launched
Nitrogen, phosphorus only about 9.1% and 17.4% are assimilated by fish in material, the elements such as a large amount of nitrogen phosphorus or heavy in residual bait and excreta
Product is in bed mud, or is dissolved in water body, and constantly change in bed mud and water body.Remaining bait and the corruption of excrement are decomposed and are led
It causes Dissolved Oxygen in Water reduction, pH decline, COD to increase, breeds pathogen, and generate a large amount of bed muds.Moreover, drug is being supported
It grows to be widely used in industry and even abuse, disinfectant, antibiotic, hormone, vaccine etc. are all potential environmental contaminants.These medicines
Object is difficult to be biodegradable, to constantly be enriched in water body and bed mud, not only influences aquatic product quality and yield, is more likely to lead to
It crosses food chain and enters human body, threaten the health and safety of the mankind.The influence for being similarly subjected to mankind's activity, work are polluted in aquaculture
Common Recalcitrant chemicals (such as polycyclic aromatic hydrocarbon, Polychlorinated biphenyls) and the widely used pesticide of agricultural, chemical fertilizer, all can in industry
Enter Cultivated water by rainwash and be deposited on soil, in bed mud, constitutes potential environmental risk.
Bioelectrochemical system combines the characteristics of biotechnology and electrochemical oxidation/reduction technique, utilizes microorganism
The energy in the substrates such as organic matter is converted electric energy by extracellular electron transmission ability.In the recent period always about the research of bioelectrochemistry
It is limited by lower coulombic efficiency and is difficult to become preferable energy obtaining means, but its contaminant degradation ability for showing
Researcher is allowed to have new application field to bioelectrochemical system.In the anode of bioelectrochemistry, microorganism is in anaerobism
In environment, the electronics that degradation of substrates generates is transmitted to cathode by external circuit, finally in conjunction with electron acceptor.And cathode is by dispatch from foreign news agency
For the electronics on road in conjunction with final electron acceptor, electron acceptor can be oxygen or other oxidizing substances.Since there are anode and cathodes
Different Redox Condition, so that the microbial physiology biochemical process at the two poles of the earth is constantly promoted.Currently, being with bioelectrochemistry
The contaminant removal device of principle design has had artificial wetland type microbiological fuel cell, edaphon fuel cell etc.,
To remove the heavy metal in environment, hardly degraded organic substance, water body COD etc..There has been no supported using principle processing aquatic products at present
Grow the report of pool bed mud or water body.
Summary of the invention
Goal of the invention: aiming at the problems existing in the prior art, the present invention provides a kind of structure novel, bioelectricity is utilized
The principles of chemistry carry out the Bioelectrochemical device of coupling purification cultivating pool bed mud and water body, and it is a further object of the present invention to provide one
The method of kind coupling purification cultivating pool bed mud and water body.
Technical solution: the Bioelectrochemical device of coupling purification cultivating pool bed mud and water body of the present invention, comprising:
Bioelectrochemistry anode in cultivating pool bed mud floats on the bioelectrochemistry cathode on cultivating pool water body, biology
It is connected between Anodic and bioelectrochemistry cathode by conducting wire；Wherein, the bioelectrochemistry anode includes two gold
Belong to net, and the activated carbon-fiber felt being clipped between two metal meshes；The bioelectrochemistry cathode includes metal support network, metal
Conductive fiber cotton or conductive sponge, planting aquatic plants are covered on supporting network.
The bed mud of aquaculture pond is in anaerobic environment, is rich in organic matter and hydrophobic contaminant, is conducive to bioelectrochemical
Learn degradation of the anode microorganism for substrate.At the same time, in breeding environment, aquaculture system is disposed with aeration oxygen replenishing dress
It sets, the dissolved oxygen in water body is conducive to the consumption of electronics in bioelectrochemical system.The present invention cleverly utilizes aquaculture pond
Environmental condition characteristic, construct bioelectrochemical system, the microorganism of bioelectrochemistry anode carries out anaerobic degradation in bed mud,
It will not be limited by electron accumulation, and bioelectrochemistry cathode has oxygen molecule constantly in conjunction with external circuit electronics, promotes in turn
Bioelectrochemistry anode further degrades organic matter or pollutant to generate electronics.Bioelectrochemistry cathode and water plant knot
It closes, secretions from plant roots and Radial Oxygen Loss from Root act on the activity that can promote cathode microbial, are speeding electronics and oxygen knot
While conjunction, water pollutant is removed.
Multiple bioelectrochemistry anodes that the bioelectrochemistry anode is vertically arranged.Compared to the list of same homalographic
On the one hand a anode, the configurations of multiple anodes can act on the degradation of pollutants in sediments in bigger area of space；Another party
Face, multiple anode configurations have better mechanical strength and anti-shearing force characteristic, conducive to arrangement of the anode in bed mud, recycling and turn
It moves.The multiple is exponential quantity >=2, and the quantity of bioelectrochemistry anode set according to actual treatment environment
It sets.
In bioelectrochemistry cathode construction, the conductive fiber cotton or conductive sponge are porous structure, and porous structure has
Conducive to a large amount of increments of microorganism, improve water treatment efficiency, the conductive fiber cotton or conductive sponge with a thickness of 2~5cm,
Aperture is 20~50PPI.Bioelectrochemistry cathode material in the range can preferably be enriched with electro-chemical activity microorganism,
Biomembrane is comparatively fast formed in hole, is conducive to microorganism catalysis external circuit electronics and electron acceptor (such as oxygen) combines.
The bioelectrochemistry cathode is set in floating bed.Floating bed provides buoyancy for the floating of biological electrochemical cathode, makes
Cathode is just immersed in the water surface, can be made of pvc pipe or foamed pipe.
Anode and cathode projected area ratio is in 1:1~1:2.The biomass of the two poles of the earth bioelectrochemistry active microorganism and metabolism are lived
Property be arranged anode and cathode area ratio one of major influence factors.It is in the anaerobism electro-chemical activity bacterium consumption substrate of anode region
Extracellular electronics is generated, these electronics are transferred to cathode via external circuit.When on cathode rate of the electronics in conjunction with electron acceptor with
When the rate that anode generates electronics matches, system shows optimal pollutant removal efficiency.
The conducting wire at connection bioelectrochemical system yin-yang the two poles of the earth should wrap up waterproof rubber, and connect 10~1000 in circuit
The resistance of Ω is to control two electrode potentials and electronics flow velocity, to reach most suitable oxidation-reduction potential.
The present invention also provides the methods of a kind of coupling purification cultivating pool bed mud and water body, comprising: utilizes the life
Object electrochemical appliance；
(1) by horizontal or vertical insertion cultivating pool bed mud after bioelectrochemistry anode enrichment anaerobe, make to give birth to
Object electrochemical cathode floats on cultivating pool water body, connection bioelectrochemistry anode and bioelectrochemistry cathode, building biology
Electrochemical appliance.
(2) in the startup stage of Bioelectrochemical device, external circuit (circuit connection i.e. between anode and cathode) open circuit is put
It sets 2 to 3 days, is sufficiently consumed the molecular oxygen of bioelectrochemistry anode region, form stringent anaerobic environment, be conducive to anode electricity
The growth and metabolism of chemical activity microorganism.Open-circuit voltage is monitored simultaneously, when open-circuit voltage reaches 500mV, is closed external circuit,
By external circuit by the extracellular electron transmission of generation to the cathodic region of floating bed.
(3) pollutant concentration for monitoring cultivating pool water body and bed mud changes, and removes device when reaching processing target.
In step (1), water sludge interface 15cm or less is in when the bioelectrochemistry anode is horizontal positioned；The life
Water sludge interface 10cm or less is in when object Anodic is placed vertically.When anode is placed, it must be fixed in sediment layer, make it not
The interference disturbed by overlying water.The depth of anode insertion simultaneously can guarantee that anode comes into full contact with the pollutant for being deposited on bed mud.
The above depth can satisfy requirement.
Wherein, vertical modes of emplacement is more conducive to arrangement, recycling and the transfer of bioelectrochemistry anode, all biologies
Anodic is equidistantly inserted vertically into cultivating pool bed mud.
It is dense can to provide higher dissolved oxygen for cathode adjacent to cultivating pool aerator for the bioelectrochemistry cathode
Degree, is conducive to the progress of cathode reaction.
During processing, when the two poles of the earth potential difference of Bioelectrochemical device is lower than 200mV, illustrate that electro-chemical activity is micro-
Biological electricity generation performance reduces, and preferably bioelectrochemistry anode is enriched with anaerobe again or moves to new bed mud area to be processed
Domain.
The utility model has the advantages that
The present invention utilizes oxidation-reduction potential in bed mud and water body by constructing bioelectrochemical system in cultivating pool
Difference, strengthen the degradation and mineralising of organic matter in bed mud, and promote the denitrification of nitrate nitrogen in water body and going for pollutant
It removes, realizes sludge reduction, innoxious and purification of water quality in situ, it is not only energy saving, it can more promote purification efficiency.
The method of the invention organic matter deposited that can be used for degrading in bed mud (including and is not limited to humus, cellulose, shallow lake
Powder, volatile fatty acid) and pollutant difficult to degrade (such as polycyclic aromatic hydrocarbon, antibiotic), while inhibiting drug-fast bacteria and cause of disease
The proliferation and diffusion of bacterium.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the Bioelectrochemical device of coupling purification cultivating pool bed mud of the present invention and water body；
Fig. 2 is the sectional view of the Bioelectrochemical device of coupling purification cultivating pool bed mud of the present invention and water body.
Specific embodiment
Combined with specific embodiments below, the present invention is furture elucidated, it should be understood that these embodiments are merely to illustrate the present invention
Rather than limit the scope of the invention, after the present invention has been read, those skilled in the art are to various equivalences of the invention
The modification of form falls within the application range as defined in the appended claims.
As shown in Figure 1, Figure 2, the Bioelectrochemical device of the present embodiment coupling purification cultivating pool bed mud and water body, comprising: set
Bioelectrochemistry anode 1 in cultivating pool bed mud floats on the bioelectrochemistry cathode 2 on cultivating pool water body, biology
It is connected between Anodic and bioelectrochemistry cathode by conducting wire 3.
Bioelectrochemistry anode is in " sandwich type ", including two metal meshes 101, and be clipped in two metal meshes 101 it
Between activated carbon-fiber felt 102, activated carbon-fiber felt can be fixedly clamped by two metal meshes by fixing piece such as titanium silk.Due to activated carbon-fiber felt
Intensity is inadequate, on the one hand metal mesh plays a supportive role, and bioelectrochemistry anode is smoothly inserted into culture pond bed mud, separately
On the one hand it is used as collector, the electric current of bioelectrochemistry anode is drawn, metal mesh can use stainless steel wire mesh.Activated carbon
Felt with a thickness of 10mm~20mm, blocked up carbon felt will lead to internal active microorganism and be difficult to come into full contact with substrate, make anode
There are inactive area, excessively thin carbon felt is difficult to be enriched with enough functional microorganisms, limits anode efficiency.Activated carbon-fiber felt can be
Circle, rectangle etc. can zoom in or out according to the actual situation, if radius or side length are 10~100cm.The anaerobism of activated carbon-fiber felt
Enrichment by Microorganisms collection uses conventional method, after such as washing dust with clear water, successively uses 1mol/L hydrochloric acid and 1mol/L hydroxide respectively
Sodium impregnates 12h, then air-dries after being cleaned with clear water, activated carbon-fiber felt is cultivated in the anaerobic reactor for having bias 1 week or more
It is enriched with the anaerobe with electro-chemical activity.Bioelectrochemistry anode is vertically arranged and 3 of the same size, equidistantly
(spacing does not have particularly severe requirement, prevents carbon felt is too close from causing microorganism unbalanced to the competition of substrate) is inserted in
In culture pond bed mud, the same bioelectrochemistry cathode is connected by stack.Bioelectrochemistry anode horizontal can also be inserted
Enter in culture pond bed mud.
Bioelectrochemistry cathode 2 includes metal support network 201, is covered with conductive fiber cotton or conductive sponge in metal support network
202, planting aquatic plants 203.Metal support network 201 plays support and the effect of collector, can use stainless steel material system
At for the thickness of conductive fiber cotton or conductive sponge 202 in 20mm or more, aperture is about 30PPI, in conductive fiber cotton or conductive sea
Continuous upper opening, plantation is swum or emergent aquactic plant, including it is not limited to romaine lettuce, Chinese celery, water spinach, rye grass etc., and in metal branch
Support cuts out hole to plant root growth on the net.Bioelectrochemistry cathode and bioelectrochemistry anode projected area ratio are 1:1,
Bioelectrochemistry cathode is set in floating bed 4, and floating bed can be frame structure made of the hollow plastic pipe of package foam.
It is connected between the metal mesh of bioelectrochemistry anode and the metal support network of bioelectrochemistry cathode by conducting wire 3,
Conducting wire should wrap up waterproof rubber, and connect the resistance 5 of 10~1000 Ω in circuit, form closed circuit, resistance is to control two
Electrode potential and electronics flow velocity, to reach most suitable oxidation-reduction potential.
Using the method for above-mentioned apparatus coupling purification cultivating pool bed mud and water body, comprising the following steps:
(1) aquaculture place to be processed is investigated, obtains contamination class, the dirt of aquaculture system and bed mud
The basic physical and chemical of dye degree and bed mud, so that it is determined that contaminant capacity；
(2) anode chamber of dual chamber electrochemistry anaerobic reactor is put into after cleaning activated carbon-fiber felt, after cutting out, in closure dispatch from foreign news agency
The function bacteriums such as culture enrichment anaerobism electricity production bacterium under the conditions of road.Or accelerated by applying bias (- 400mV, vs calomel electrode) micro-
The screening of biology and enrichment rate.In the enrichment reactor of stable operation, 1 to 2 week can be enriched with completion, after the completion of enrichment with
Metal net is the bioelectrochemistry anode of apparatus of the present invention；
(3) bioelectrochemistry anode is inserted vertically into cultivating pool bed mud, is located at water sludge interface or less 10cm, makes biology
Electrochemical cathode floats on culture pond water body, and bioelectrochemistry cathode is adjacent to cultivating pool aerator；Conducting wire connection biology
Anodic and bioelectrochemistry cathode access resistance, construct Bioelectrochemical device；
(4) in the startup stage of Bioelectrochemical device, external circuit (circuit connection i.e. between anode and cathode) open circuit is put
It sets 2 to 3 days, monitors open-circuit voltage, when open-circuit voltage reaches 500mV, be closed external circuit；
(5) pollutant concentration for monitoring cultivating pool water body and bed mud changes, and removes device when reaching processing target；Work as life
When the two poles of the earth potential difference of object electrochemical appliance is lower than 200mV, illustrates electro-chemical activity microorganism electricity generation reduced performance, will preferably give birth to
Object Anodic is enriched with anaerobe again or moves to new bed mud region to be processed.
Application examples 1
This experimental rig material uses organic glass, is configured as hollow tubular single chamber bioelectrochemical system, internal diameter 24cm,
High 150cm (the high 200cm containing pedestal), fill respectively from bottom to top sediment layer 25cm and overlying water layer (respectively 25cm, 50cm,
75cm), overlying water uses artificial distribution according to the composition of cultivating pool water, and device is placed vertically, simulates practical aquaculture pond
Longitudinal environment on the pool.The structure of Bioelectrochemical device is same as above, and bioelectrochemistry anode material is two sides double-layer stainless steel
The activated carbon-fiber felt (circle of diameter 20cm) that silk screen sandwiches, monolithic bioelectrochemistry anode are placed horizontally in the middle part of sediment layer, position
Below the water sludge interface at 15cm.In bioelectrochemistry cathode, use thickness 20cm, aperture fine for the cellular activated carbon of 30PPI
Vinylon and cotton blend, using stainless steel wire mesh as substrate.It is connected between anode and cathode with 1mm thick titanium silk, accesses 1000 Ω resistance.
Multiple groups processing experiment is established, by carbon source kind, overlying water conductive characteristic and Bioelectrochemical device in bed mud
The research of starting method etc., analyze the bioelectrochemistry technical method of coupling purification cultivating pool bed mud and water body feasibility and
Key influence factor.
Glucose, sodium acetate, soluble starch, microcrystalline cellulose are added respectively in the bed mud of device, in every liter of bed mud
1g substrate is added, as the energy substrate of bioelectrochemistry anode, in this experiment, the depth of overlying water layer is 25cm.As a result table
Bright, in first 3 days presentation 500~600mV of high potential difference, subsequent rapid decrease was continuing 2 months for glucose and sodium acetate processing group
The continuous monitoring stage, two electrode potentials slowly decline, and maintain 200 between 300mV；And the processing group of starch and cellulose
Electricity generation performance slowly increases, and keeps potential difference in 500mV or so in nearly 4 months time.The description of test, life of the invention
Object electrochemical appliance, anode microorganism can degrade and be produced electricity using carbon source, in device startup stage, by additionally adding Portugal
Grape sugar or sodium acetate can be also advantageous for macrocyclic electricity generation performance with the open-circuit voltage of two interpolar of quick-lift attachreactor.
The ratio (muddy water ratio, i.e. depth ratio) of overlying water and bed mud also has a significant impact bioelectrochemistry performance,
Under 25cm bed mud thickness condition, real-time monitoring is carried out to anode and cathode potential difference, within the period of continuous monitoring 2 months, overlying water
Corresponding maximum potential difference is respectively 603mV, 510mV, 369mV when depth is 25cm, 50cm, 75cm, and overlying water is deeper, mass transfer
Resistance is bigger, and electro-chemical activity microbial activity is lower, shows as the reduction of the two poles of the earth potential difference, and electricity generation performance reduces.But overlying water
Depth should not be excessively shallow, in order to avoid oxygen enters bioelectrochemistry anode region, influence the anaerobic condition of anode, inhibit microorganism living
Property, generally, overlying water depth is not less than 15cm, can preferably maintain the anaerobic environment of bed mud.
When containing hardly degraded organic substance (such as polycyclic aromatic hydrocarbon) in bed mud, these pollutants for being accumulated in bed mud can be by
Bioelectrochemistry anode efficient degradation.1g soluble starch is being added as carbon using 1:1 muddy water ratio and into every liter of bed mud
Under conditions of the substance of source, it is mixed into bed mud with three kinds of polycyclic aromatic hydrocarbons of acetone solution (naphthalene, acenaphthene, pyrene), polycyclic aromatic hydrocarbon concentration is 1g/
L studies this Bioelectrochemical device and acts on the removal of three kinds of polycyclic aromatic hydrocarbons.Experimental study shows, bioelectrochemistry anode and cathode
Potential difference and the faint electric current of external circuit can substantially promote the degradation of naphthalene in bed mud, acenaphthene, pyrene, compared to disconnecting external circuit
The closed circuit of processing group, 1000 Ω resistance of access mentions the removal rate of naphthalene, acenaphthene, pyrene respectively from 35.1%, 15.1%, 13.7%
76.1%, 65.3%, 56.2% is risen to, efficient pollution detergent power is presented, to organic matter in bed mud, especially to difficult to degrade
The efficient removal of organic matter can mitigate pollutant in bed mud and spread caused water pollution.At the same time, floating bed part passes through
The denitrogenation dephosphorizing of overlying water may be implemented in aerobic microbiological metabolism and plant absorption effect, realizes that the coupling of bed mud and overlying water is net
Change.
Claims (10)
1. a kind of Bioelectrochemical device of coupling purification cultivating pool bed mud and water body characterized by comprising be set to cultivation
Bioelectrochemistry anode in sediment of pond floats on the bioelectrochemistry cathode on cultivating pool water body, bioelectrochemistry sun
It is connected between pole and bioelectrochemistry cathode by conducting wire；Wherein, the bioelectrochemistry anode includes two metal meshes, and
The activated carbon-fiber felt being clipped between two metal meshes；The bioelectrochemistry cathode includes metal support network, in metal support network
It is covered with conductive fiber cotton or conductive sponge, planting aquatic plants.
2. the Bioelectrochemical device of coupling purification cultivating pool bed mud and water body according to claim 1, feature exist
In the bioelectrochemistry anode is vertically arranged multiple.
3. the Bioelectrochemical device of coupling purification cultivating pool bed mud and water body according to claim 1, feature exist
In the conductive fiber cotton or conductive sponge are porous structure, and with a thickness of 2~5cm, aperture is 20~50PPI.
4. the Bioelectrochemical device of coupling purification cultivating pool bed mud and water body according to claim 1, feature exist
In anode and cathode projected area ratio is 1:1~1:2.
5. the Bioelectrochemical device of coupling purification cultivating pool bed mud and water body according to claim 1, feature exist
In bioelectrochemistry cathode is set in floating bed.
6. a kind of method of coupling purification cultivating pool bed mud and water body characterized by comprising appointed using Claims 1 to 55
Bioelectrochemical device described in one；
(1) by horizontal or vertical insertion cultivating pool bed mud after bioelectrochemistry anode enrichment anaerobe, make bioelectricity
Chemical cathode floats on cultivating pool water body, and connection bioelectrochemistry anode and bioelectrochemistry cathode remove cultivating pool
Organic pollutant and purifying water body in bed mud；
(2) in the startup stage of Bioelectrochemical device, external circuit open circuit is placed 2 to 3 days, open-circuit voltage is monitored, works as open circuit
When voltage reaches 500mV, it is closed external circuit；
(3) pollutant concentration for monitoring cultivating pool water body and bed mud changes, and removes device when reaching processing target.
7. the method for coupling purification cultivating pool bed mud and water body according to claim 6, which is characterized in that the life
Object Anodic is in water sludge interface 15cm or less when horizontal positioned；At when the bioelectrochemistry anode is placed vertically
In water sludge interface 10cm or less.
8. the method for coupling purification cultivating pool bed mud and water body according to claim 6, which is characterized in that all lifes
Object Anodic is equidistantly inserted vertically into cultivating pool bed mud.
9. the method for coupling purification cultivating pool bed mud and water body according to claim 6, which is characterized in that the life
Object electrochemical cathode is adjacent to cultivating pool aerator.
10. the method for coupling purification cultivating pool bed mud and water body according to claim 6, which is characterized in that work as biology
When the two poles of the earth potential difference of electrochemical appliance is lower than 200mV, bioelectrochemistry anode is enriched with anaerobe again or is moved to new
Bed mud region to be processed.
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| CN111003795A (en) * | 2019-12-28 | 2020-04-14 | 哈尔滨工业大学 | Water body in-situ remediation method for strengthening floating ecological bed by using bioelectrochemistry |
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| CN111592115A (en) * | 2020-06-20 | 2020-08-28 | 中冶节能环保有限责任公司 | Microbial fuel cell-constructed wetland coupling system |
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