CN110104874A - A kind of continuous flow wetland type microbiological fuel cell reactor sewage-treatment plant - Google Patents
A kind of continuous flow wetland type microbiological fuel cell reactor sewage-treatment plant Download PDFInfo
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- CN110104874A CN110104874A CN201910334120.8A CN201910334120A CN110104874A CN 110104874 A CN110104874 A CN 110104874A CN 201910334120 A CN201910334120 A CN 201910334120A CN 110104874 A CN110104874 A CN 110104874A
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/16—Biochemical fuel cells, i.e. cells in which microorganisms function as catalysts
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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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
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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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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Water Treatment By Electricity Or Magnetism (AREA)
- Biological Treatment Of Waste Water (AREA)
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Abstract
The present invention relates to a kind of continuous flow wetland type microbiological fuel cell reactor sewage-treatment plants, the device includes the hydrolysis acidification pool (3) set gradually from the bottom to top, anode chamber (6) and artificial swamp cathode chamber, the filler formed in the anode chamber (6) filled with anaerobic grain sludge and granular activated carbon, anode electrode (7) are equipped in filler, granular activated carbon is filled in the artificial swamp cathode chamber, it is provided with cathode electrode (10), the anode electrode (7) is connect with cathode electrode (10) by resistance (13)；Treatment sewage enters anode chamber (6) after hydrolysis acidification pool (3) hydrolysis acidification from bottom, and from top, outflow enters artificial swamp cathode chamber after reacting, and produces electricity while purifying sewage.Compared with prior art, the advantages that present invention has processing technology simple, and application method is simple, and all kinds of sewage treatments is suitble to use.
Description
Technical field
The present invention relates to environmental project and engineering of water treatment fields, fire more particularly, to a kind of continuous flow wetland type microorganism
Expect cell reaction device sewage-treatment plant.
Background technique
With the fast development of economy and society, solve the problem of environmental pollution got worse and seek the new energy to be people
Class society can complete two big fundamental issues of sustainable development and two large focal spot problems of the world today.Microorganism combustion
Material battery (Microbial Fuel Cell, MFC) technology effectively links together both of these problems, oneself causes to close extensively
Note.
Organic matter in sewage is decomposed using while being produced electricl energy under the action of producing electricity bacterium, completes the same of sewage treatment
The recycling of Shi Shixian electric energy.In the anode compartment, organic substrates are decomposed into oxycarbide (such as CO under the catalytic action of microorganism2)
Etc. small molecules, while discharging electronics and proton.Electronics is transmitted to cathode by external circuit, and proton is transmitted to by proton exchange membrane
Cathode, the two on the cathode electrode with electron acceptor (such as O2) combine, reduction reaction occurs (as generated water).
Water pollution is mainly caused by the pollutant that mankind's activity generates, and mainly includes industrial pollution source, agricultural pollution source
With domestic pollution source three parts.The investment of artificial swamp and operating cost are relatively low and easy to maintain, imitate to the processing of sewage
Fruit is good, applied widely；The impact of hydraulic loading and pollutional load can be buffered；The function of greening environment.Conventional artificial swamp
The shortcomings that be that occupied area is relatively large, about 2-3 times or so of traditional waste water treatment process is easy to produce siltation, blocking
Phenomena such as.
The present invention be on the basis of being studied for many years artificial swamp, in conjunction with MFC technology propose by artificial wet land water quality
Purification produces electricity the new exploration being combined into one with MFC.Recovery energy is realized while waste water control, which is a set of multiple
Box-like ecotype MFC.
Biological-cathode type MFC, which refers to, replaces the abiotic catalyst such as Pt with microorganism, realizes electronics from cathode to final electricity
The microbiological fuel cell of sub- receptor transmitting.Aerobe cathode is mainly direct with oxygen, manganese dioxide and ferric iron etc.
Electron acceptor.Anaerobic organism cathode type is mainly using nitrate, sulfate, carbon dioxide as terminal electron acceptor.Virdis
Denitrogenation of waste water and electricity production are realized Deng synchronizing using aerobe cathode, final denitrification percent has reached 86.9% or more.Kaohsiung English
Deng using dual chamber MFC reactor, the electricity production of chemical cathode and biological-cathode MFC and Cr under different initial Cr (VI) concentration have been investigated
(VI) situation is removed.The result shows that the biological-cathode MFC under each Cr (VI) concentration gradient (20,28,32,36,40,44mg/L)
Electricity production and Cr (VI) removal capacity it is more excellent compared with chemical cathode MFC, biological-cathode maximum output voltage be 180.1mV, being
1.3 times for learning cathode.
Biological-cathode does not need expensive metallic catalyst, and cathode microbial can be remained stable by self-reproduction and be urged
Change ability is to improve the stability of MFC, and the metabolism of microorganism in the cathode can generate valuable new product or removal
Certain pollutants have the potentiality of substitution chemical cathode.
The present invention be directed to the deficiencies of existing microbiological fuel cell reactor and technique, carry out to MFC configuration and technique
It is suitably modified and perfect, treatment effect will be improved using the material selection of artificial swamp type biological-cathode and optimization design.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of processing technology is simple,
Application method is simple, the continuous flow wetland type microbiological fuel cell reactor sewage treatment dress for being suitble to all kinds of sewage treatments to use
It sets.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of continuous flow wetland type microbiological fuel cell reactor sewage-treatment plant, which is characterized in that the device packet
The hydrolysis acidification pool set gradually from the bottom to top, anode chamber and artificial swamp cathode chamber are included, is filled with and detests in the anode chamber
The filler of oxygen granule sludge and granular activated carbon composition, filler is interior to be equipped with anode electrode, fills out in the artificial swamp cathode chamber
Filled with granular activated carbon, it is provided with cathode electrode, the anode electrode is connect with cathode electrode by resistance；Dirt to be processed
Water enters anode chamber from bottom after hydrolysis acidification pool hydrolysis acidification, and from top, outflow enters artificial swamp yin after reacting
Pole room produces electricity while purifying sewage.
Further, treatment sewage inputs hydrolysis acidification pool by water inlet system, and water inlet system includes intake pump and cloth
Hydrophone；The water distributor is made of water inlet pipe and perforated plate, and wherein water inlet pipe connects intake pump, and perforated plate setting is in hydrolysis acid
Change bottom of pond portion, sewage is inputted below perforated plate by intake pump and water inlet pipe, after up-flow is distributed by perforated plate, into hydrolysis acid
Change pond and acidification is hydrolyzed, macromolecular components in sewage are decomposed into small molecule ingredient, is conducive to subsequent cell and handles, improve matrix
Utilization efficiency and shortening MFC start the period, and sewage up-flow enters anode chamber after hydrolysis acidification.
Further, diameter is evenly distributed on the perforated plate for the hole of 10-15mm, in the hydrolysis acidification pool
Contain elastic filler.
Further, filler supporting layer is arranged at lower part in the anode chamber, and top is equipped with three phase separator, and anaerobic grain is dirty
Mud and granular activated carbon are placed on filler supporting layer, and the three phase separator connects water sealed tank, and water sealed tank controls three phase separation
The indoor pressure of device gas makes three phase separator treatment effeciency highest, and being processed rear suspended matter reduces, and reactor does not need to set again
Secondary settling tank, water seal hydraulic pressure are 25-50cm, this room hydraulic detention time is 4-6h, the mixed liquor of anode chamber through three phase separator into
After promoting the circulation of qi solid-liquor separation, anaerobic grain sludge and granular activated carbon drop back into anode chamber, and water flow continues up-flow and enters cathode chamber.
Further, the partial size of the granular activated carbon is 3-6mm, and anaerobic grain sludge partial size is 3-6mm, the two body
For product than being 1:0.5-2, filler supporting layer is the perforation stainless steel plate or HDPE plate that aperture is less than 2mm.The big ratio of granular activated carbon
Surface area is also conducive to electronics transfer conducive to bacterium attachment.
Further, the artificial swamp cathode chamber is supported, Manual moist using active carbon as filler using filler supporting layer
Separator, plant and water outlet are equipped with above ground cathode chamber, treated, and sewage is discharged from water outlet, the activated carbon particle size
For 4-8mm, cathode microbial can maintain stable catalytic capability to improve the stability of MFC, and micro- life by self-reproduction
Object in the cathode can remove certain pollutants, improve effluent quality.
Further, the artificial swamp cathode chamber is also connected with aeration component, aeration component include aerator and with
Its perforated disc connected or perforated pipe, perforated disc or perforated pipe are located at artificial swamp cathode chamber middle part, when the produced oxygen of plant not
When sufficient, using aerator perforated disk or perforated pipe aerating regulation, air water volume ratio is 3-20:1.
Further, the separator separates wetland soil and plant and the indoor filler of artificial swamp cathode；Institute
The plant selected is emergent aquactic plant, such as reed, calamus, cattail or rush, 10-20 plants/m of planting density2, selected point
Parting is permeable colour bar cloth etc..
Further, the resistance value of the resistance is 500-2000 Ω, used in the anode electrode and cathode electrode
Material is charcoal felt.
Further, treatment sewage inlet COD concentration is not higher than 1500mg/L, if inlet COD concentration is higher than
1500mg/L is preferably pre-processed or is taken before the device water outlet to recycle, and enters back into device after raw water mixed diluting, can avoid
Anaerobic gas generation amount is excessive when due to excessive concentration and wetland dissolves hypoxgia；
The volumetric loading rate of the sewage-treatment plant is up to 0.2-2.0kgCOD/m3.d, power 100- is produced electricity
600mW/m2。
Compared with prior art, the invention has the following advantages that
(1) present invention is different from other existing microbiological fuel cell sewage-treatment plants, especially obviously different from having
The two chamber-type microbiological fuel cell reactor of proton exchange membrane, the present invention are without proton exchange membrane, integral type continuous flow liter
Streaming wetland type microbiological fuel cell reactor sewage-treatment plant.
(2) before entering microbiological fuel cell, hydrolysis acidification pool hydrolysis acidification is first passed through, by macromolecular components in sewage point
Solution is small molecule ingredient, is conducive to subsequent cell and handles, and matrix utilization efficiency can be improved and shorten the MFC starting period, other MFC dresses
Setting does not have such setting.
(3) anode reaction room hydraulic detention time is 4-6h, is less than conventional sewage and handles anaerobic reation pool 8-12h, uses
Microbiological fuel cell technology improves sewage disposal system efficiency and the effect of reduction cost of investment is more apparent.
(4) anode chamber uses the mixture of the fillers such as anaerobic grain sludge and granular activated carbon GAC, and the micro- life of electricity production can be improved
Object content and raising anode reaction efficiency, hence it is evident that be different from the anode chamber of other microbiological fuel cell reactors.
(5) wetland soil and plant and cathode chamber GAC filler etc. are separated with separator, it is easy avoids conventional manual's wetland
The deficiency of blocking.Perforation pipe dish/pipe aeration is mounted on the medium height position of cathode chamber, which avoids oxygen pair after aeration
The influence of anode chamber.
Detailed description of the invention
Fig. 1 is continuous flow wetland type biological-cathode microbiological fuel cell reactor sewage-treatment plant in embodiment 1
Schematic diagram, shown in figure label:
Intake pump 1, water distributor 2, hydrolysis acidification pool 3, filler supporting layer 4, sample tap 5, anaerobic grain sludge 5, anode chamber
6, anode electrode 7, three phase separator 8, aerator 9, cathode electrode 10, separator 11, plant 12, resistance 13, water sealed tank 14, out
The mouth of a river 15.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
As shown in Figure 1, a kind of continuous flow wetland type microbiological fuel cell reactor sewage-treatment plant, the device include
The hydrolysis acidification pool (3) set gradually from the bottom to top, anode chamber (6) and artificial swamp cathode chamber.
Treatment sewage inputs hydrolysis acidification pool (3) by water inlet system, and water inlet system includes intake pump (1) and water distributor
(2)；The water distributor (2) is made of water inlet pipe and perforated plate, wherein water inlet pipe connection intake pump (1), and perforated plate setting exists
Hydrolysis acidification pool (3) bottom, the hole that diameter is 10mm is evenly distributed on perforated plate, and the hydrolysis acidification pool contains in (3)
Elastic filler.Sewage is inputted below perforated plate by intake pump (1) and water inlet pipe, after up-flow is distributed by perforated plate, into water
Acidification is hydrolyzed in solution acidification pool (3), and macromolecular components in sewage are decomposed into small molecule ingredient, and sewage flows up after hydrolysis acidification
Into anode chamber (6).
It is filled with the filler that anaerobic grain sludge and granular activated carbon form in the anode chamber (6), is equipped in filler
Anode electrode (7), filler supporting layer 4 is arranged at lower part in anode chamber, and top is equipped with three phase separator 8, anaerobic grain sludge and particle
Active carbon is placed on filler supporting layer 4, and three phase separator 8 connects water sealed tank 14, and water sealed tank 14 controls in 8 gas chamber of three phase separator
Pressure, water seal hydraulic pressure is 25cm, and the partial size of granular activated carbon is 3-4mm, and anaerobic grain sludge partial size is 3-4mm, the two body
For product than being 1:2, filler supporting layer 4 is the perforation stainless steel plate that aperture is less than 2mm.
The artificial swamp cathode chamber is supported using active carbon as filler using filler supporting layer 4, is set in active carbon filler
Have cathode electrode (10), separator 11, plant 12 and water outlet 15, activated carbon particle size 4- are equipped with above artificial swamp cathode chamber
6mm, artificial swamp cathode chamber are also connected with aeration component, and aeration component includes aerator 9 and perforated disc connected to it, perforation
Disk is located in the middle part of artificial swamp cathode chamber, when 12 produced oxygen deficiency of plant, is aerated using 9 perforated disk of aerator；Separate
Object 11 separates wetland soil and plant 12 and the indoor filler of artificial swamp cathode；Selected plant 12 is reed, plantation
10 plants/m of density2, selected separator is permeable colour bar cloth.
The anode electrode (7) is connect with cathode electrode (10) by resistance (13)；The resistance of the resistance 13 of the device
Value is 500 Ω, and anode electrode 7 and 10 material therefor of cathode electrode are charcoal felt.
Using above-mentioned continuous flow wetland type microbiological fuel cell reactor sewage-treatment plant, processing COD is 450mg/L
Simulated domestic wastewater, comprise the following steps that:
1, handled wastewater influent COD concentration is 450mg/L, is lower than 1500mg/L, directly can be pumped into this by intake pump 1
Device carries out water distribution uniformity by water inlet pipe and water distributor 2.Water temperature is room temperature, does not need.Into 3 water of hydrolysis acidification pool
Solution acidification, rear sewage up-flow enter anode chamber 6, carry out anode reaction, room hydraulic detention time 4h；
2, after anode reaction after three phase separator 8 carries out gas-liquid-solid separation, water flow up-flow enters artificial swamp cathode
Room needs to be aerated using 9 perforated disk of aerator, gas-water ratio 5:1 when the produced oxygen deficiency of wetland plant, is exposing gas and water
Under the hydraulic shear of the generations such as stirring acts on mutually between stream and granular activated carbon, cathode reaction is abundant；
3, due in reactor biofilm biomass it is higher, volumetric loading rate is up to 1.2kgCOD/m after stable operation3.d, than normal
The load that activated sludge process load is high, and resistance 13 is 500 ohm is advised, power 100-200mW/m is produced electricity2, what water outlet 15 was discharged
COD can be down to 50mg/L or less.
Embodiment 2
A kind of continuous flow wetland type microbiological fuel cell reactor sewage-treatment plant, 2 perforated plate of water distributor of use
The diameter in upper equally distributed hole is 12mm,
For its structure with embodiment 1, the partial size for the granular activated carbon filled in anode chamber is 4-6mm, anaerobic grain sludge grain
Diameter is 4-6mm, and the two volume ratio is 1:1, and filler supporting layer 4 is the perforation HDPE plate that aperture is less than 2mm.The control of water sealed tank 14 three
The indoor pressure of 8 gas of phase separator, water seal hydraulic pressure are 35cm.
The activated carbon particle size loaded in artificial swamp cathode chamber is 6-8mm, the selected plant 12 of artificial swamp cathode chamber
For calamus, 15 plants/m of planting density2。
The resistance value of resistance 13 is 1000 Ω.Remaining structure is the same as embodiment 1.
Using above-mentioned continuous flow wetland type microbiological fuel cell reactor sewage-treatment plant, processing COD is 1200mg/
The simulation trade effluent of L, comprises the following steps that:
1, handled wastewater influent COD concentration is 1200mg/L, is lower than 1500mg/L, can be directly pumped by intake pump 1
The device carries out water distribution uniformity by water inlet pipe and water distributor 2.Water temperature is room temperature, does not need.Into hydrolysis acidification pool 3
Hydrolysis acidification, rear sewage up-flow enter anode chamber 6, carry out anode reaction, room hydraulic detention time 6h；
2, after anode reaction after three phase separator 8 carries out gas-liquid-solid separation, water flow up-flow enters artificial swamp cathode
Room, when the produced oxygen deficiency of wetland plant, need using 9 perforated disk of aerator be aerated, gas-water ratio 15:1, aeration,
Under the hydraulic shear of the generations such as stirring acts on mutually between water flow and granular activated carbon, cathode reaction is abundant；
3, due in reactor biofilm biomass it is higher, volumetric loading rate is up to 1.5kgCOD/m after stable operation3.d, than normal
It is high to advise activated sludge process load, produces electricity power 150-350mW/m2, water outlet 15 be discharged COD can be down to 500mg/L or less.
Embodiment 3
A kind of continuous flow wetland type microbiological fuel cell reactor sewage-treatment plant, 2 perforated plate of water distributor of use
The diameter in upper equally distributed hole is 15mm.The partial size for the granular activated carbon filled in anode chamber is 3-6mm, anaerobic grain sludge
Partial size is 3-6mm, and the two volume ratio is 2:1, and it is 45cm, people that water sealed tank 14, which controls the indoor water seal hydraulic pressure of 8 gas of three phase separator,
The activated carbon particle size filled in work wetland cathode chamber is 5-7mm, and the selected plant 12 of artificial swamp cathode chamber is cattail, plantation
20 plants/m of density2.The resistance value of resistance 13 is 2000 Ω.
Remaining structure is the same as embodiment 1.
Using above-mentioned continuous flow wetland type microbiological fuel cell reactor sewage-treatment plant, processing COD is 2500mg/
The simulation trade effluent of L, comprises the following steps that:
1, handled wastewater influent COD concentration is higher than 1500mg/L, and water outlet is taken to recycle, and mixes with raw water by 3:1 dilute
The device is pumped into intake pump 1 after releasing to be handled, and water distribution uniformity is carried out by water inlet pipe and water distributor 2.Water temperature is room temperature, no
It needs.Into 3 hydrolysis acidification of hydrolysis acidification pool, rear sewage up-flow enters anode chamber 6, carries out anode reaction, the room waterpower
Residence time 6h；
2, after anode reaction after three phase separator 8 carries out gas-liquid-solid separation, water flow up-flow enters artificial swamp cathode
Room, when the produced oxygen deficiency of wetland plant, need using 9 perforated disk of aerator be aerated, gas-water ratio 20:1, aeration,
Under the hydraulic shear of the generations such as stirring acts on mutually between water flow and granular activated carbon, cathode reaction is abundant；
3, due in reactor biofilm biomass it is higher, volumetric loading rate is up to 1.8kgCOD/m after stable operation3.d, than normal
It is high to advise activated sludge process load, produces electricity power 250-650mW/m2, water outlet 15 be discharged COD can be down to 500mg/L or less.
Embodiment 4
A kind of continuous flow wetland type microbiological fuel cell reactor sewage-treatment plant, 2 perforated plate of water distributor of use
The diameter in upper equally distributed hole is 10mm.The partial size for the granular activated carbon filled in anode chamber is 3-5mm, anaerobic grain sludge
Partial size is 3-5mm, and the two volume ratio is 1:1.5, and it is 50cm that water sealed tank 14, which controls the indoor water seal hydraulic pressure of 8 gas of three phase separator,
The activated carbon particle size filled in artificial swamp cathode chamber is 4-6mm, and the selected plant 12 of artificial swamp cathode chamber is rush,
12 plants/m of planting density2.The resistance value of resistance 13 is 1500 Ω.
Remaining structure is the same as embodiment 1.
Using above-mentioned continuous flow wetland type microbiological fuel cell reactor sewage-treatment plant, processing COD is 450mg/L
Simulated domestic wastewater, comprise the following steps that:
1, handled wastewater influent COD concentration is 450mg/L, is lower than 1500mg/L, directly can be pumped into this by intake pump 1
Device carries out water distribution uniformity by water inlet pipe and water distributor 2.Water temperature is room temperature, does not need.Into 3 water of hydrolysis acidification pool
Solution acidification, rear sewage up-flow enter anode chamber 6, carry out anode reaction, room hydraulic detention time 5h；
2, after anode reaction after three phase separator 8 carries out gas-liquid-solid separation, water flow up-flow enters artificial swamp cathode
Room needs to be aerated using 9 perforated pipe of aerator, gas-water ratio 3:1 when the produced oxygen deficiency of wetland plant, is exposing gas and water
Under the hydraulic shear of the generations such as stirring acts on mutually between stream and granular activated carbon, cathode reaction is abundant；
3, due in reactor biofilm biomass it is higher, volumetric loading rate is up to 2.0kgCOD/m after stable operation3.d, than normal
It is high to advise activated sludge process load, produces electricity power 400-600mW/m2, water outlet 15 be discharged COD can be down to 50mg/L or less.
Above embodiments are merely to illustrate technical solution of the present invention, are not limitations of the present invention, the art
Change that those of ordinary skill is made within the essential scope of the present invention, substitution, modification, simplification are equivalent transformation, not
It is detached from spirit of the invention, also should belong to claims of the invention.
Claims (10)
1. a kind of continuous flow wetland type microbiological fuel cell reactor sewage-treatment plant, which is characterized in that the device includes
The hydrolysis acidification pool (3) set gradually from the bottom to top, anode chamber (6) and artificial swamp cathode chamber are filled out in the anode chamber (6)
Filled with the filler that anaerobic grain sludge and granular activated carbon form, anode electrode (7) are equipped in filler, the artificial swamp yin
It is filled with active carbon in pole room, is provided with cathode electrode (10), the anode electrode (7) and cathode electrode (10) pass through electricity
Hinder (13) connection；Treatment sewage enters anode chamber (6) after hydrolysis acidification pool (3) hydrolysis acidification from bottom, reacts
From top, outflow enters artificial swamp cathode chamber afterwards, produces electricity while purifying sewage.
2. a kind of continuous flow wetland type microbiological fuel cell reactor sewage-treatment plant according to claim 1,
It is characterized in that, treatment sewage inputs hydrolysis acidification pool (3) by water inlet system, and water inlet system includes intake pump (1) and water distribution
Device (2)；The water distributor (2) is made of water inlet pipe and perforated plate, wherein water inlet pipe connection intake pump (1), perforated plate setting
In hydrolysis acidification pool (3) bottom, sewage is inputted below perforated plate by intake pump (1) and water inlet pipe, and up-flow passes through perforated plate point
After cloth, acidification is hydrolyzed into hydrolysis acidification pool (3), macromolecular components in sewage are decomposed into small molecule ingredient, hydrolysis acid
Sewage up-flow enters anode chamber (6) after change.
3. a kind of continuous flow wetland type microbiological fuel cell reactor sewage-treatment plant according to claim 2,
It is characterized in that, the hole that diameter is 10-15mm is evenly distributed on the perforated plate, and the hydrolysis acidification pool contains in (3)
Elastic filler.
4. a kind of continuous flow wetland type microbiological fuel cell reactor sewage-treatment plant according to claim 1,
It is characterized in that, there is filler supporting layer (4) lower part in the anode chamber, top is equipped with three phase separator (8), anaerobic grain sludge
It is placed on filler supporting layer (4) with granular activated carbon, the three phase separator (8) connects water sealed tank (14), water sealed tank (14)
The indoor pressure of three phase separator (8) gas is controlled, water seal hydraulic pressure is 25-50cm, this room hydraulic detention time is 4-6h, anode chamber
Mixed liquor through three phase separator (8) carry out gas-liquid-solid separation after, anaerobic grain sludge and granular activated carbon drop back into anode chamber
(6), water flow continues up-flow into cathode chamber.
5. a kind of continuous flow wetland type microbiological fuel cell reactor sewage-treatment plant according to claim 1,
It is characterized in that, the partial size of the granular activated carbon is 3-6mm, and anaerobic grain sludge partial size is 3-6mm, and the two volume ratio is 1:
0.5-2。
6. a kind of continuous flow wetland type microbiological fuel cell reactor sewage-treatment plant according to claim 1,
It is characterized in that, the artificial swamp cathode chamber is supported using active carbon as filler using filler supporting layer (4), artificial swamp yin
Separator (11), plant (12) and water outlet (15) are equipped with above pole room, treated, and sewage is discharged from water outlet (15), described
Activated carbon particle size be 4-8mm.
7. a kind of continuous flow wetland type microbiological fuel cell reactor sewage-treatment plant according to claim 6,
It is characterized in that, the artificial swamp cathode chamber is also connected with aeration component, and aeration component includes aerator (9) and is connected thereto
Perforated disc or perforated pipe, perforated disc or perforated pipe be located in the middle part of artificial swamp cathode chamber, when the produced oxygen deficiency of plant (12)
When, using aerator (9) perforated disk or perforated pipe aerating regulation, air water volume ratio is 3-20:1.
8. a kind of continuous flow wetland type microbiological fuel cell reactor sewage-treatment plant according to claim 6,
It is characterized in that, the separator (11) separates wetland soil and plant (12) and the indoor filler of artificial swamp cathode；
Selected plant (12) is emergent aquactic plant, such as reed, calamus, cattail or rush, 10-20 plants/m of planting density2。
9. a kind of continuous flow wetland type microbiological fuel cell reactor sewage-treatment plant according to claim 1,
It is characterized in that, the resistance value of the resistance (13) is 500-2000 Ω, and the cathode electrode (10) material therefor is charcoal felt.
10. a kind of continuous flow wetland type microbiological fuel cell reactor sewage-treatment plant according to claim 1,
It is characterized in that, treatment sewage inlet COD concentration is not higher than 1500mg/L, if inlet COD concentration is higher than 1500mg/L, the dress
It is preferably pre-processed or is taken before setting water outlet to recycle, and enter back into device after raw water mixed diluting；
The volumetric loading rate of the sewage-treatment plant is up to 0.2-2.0kgCOD/m3.d, power 100-600mW/m is produced electricity2。
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| CN201910334120.8A CN110104874A (en) | 2019-04-24 | 2019-04-24 | A kind of continuous flow wetland type microbiological fuel cell reactor sewage-treatment plant |
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| CN201910334120.8A CN110104874A (en) | 2019-04-24 | 2019-04-24 | A kind of continuous flow wetland type microbiological fuel cell reactor sewage-treatment plant |
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| CN112939196A (en) * | 2021-02-05 | 2021-06-11 | 郑州轻工业大学 | Coke electrode microbial fuel cell constructed wetland system, operation method and application |
| CN113354210A (en) * | 2021-06-22 | 2021-09-07 | 安徽中环环保科技股份有限公司 | Chemical wastewater deep denitrification and decoloration system |
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