CN205874017U - Tidal flow constructed wetland coupling microbiological fuel cell's sewage treatment system - Google Patents
Tidal flow constructed wetland coupling microbiological fuel cell's sewage treatment system Download PDFInfo
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- CN205874017U CN205874017U CN201620514194.1U CN201620514194U CN205874017U CN 205874017 U CN205874017 U CN 205874017U CN 201620514194 U CN201620514194 U CN 201620514194U CN 205874017 U CN205874017 U CN 205874017U
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The utility model discloses a tidal flow constructed wetland coupling microbiological fuel cell's sewage treatment system belongs to the sewage treatment field. This system includes intake pool, coupling device and circulating water pond. The coupling device comprises cathodic region, filter material district, anode region and supporting layer. Device top -down is cathodic region, filter material district, anode region, filter material district, supporting layer, lay stainless steel meshwork between anode region and cathodic region, the negative pole exposes the aquatic plant who transplants certain density in the air and on the top layer, and the intake pool is connected with the device bottom, during enterprising lower of rivers, has drainage pipe bottom installing, circulating water pond respectively with install the top, drainage pipe is connected, when going out in advancing under the rivers, circulating water pond upper portion all is connected with the bottom of installing with the lower part, has the delivery port in the middle part of installing. Full play constructed wetland of this system and microbiological fuel cell synergism coordinate the specific tidal flow rivers method of operation, have realized the purpose of efficient handling of sewage.
Description
Technical field
The invention belongs to sewage treatment area, more particularly, it relates to a kind of tidal flow artificial wetland coupling microorganism combustion
Domestic sewage in rural areas and livestock breeding wastewater are processed by the sewage disposal system of material battery.
Background technology
Along with the pollution problem of developing rapidly of China's economy, life in the countryside and livestock breeding wastewater is the most serious.Two
The feature of type sewage maximum is that concentration of nitrogen and phosphorus is high.Along with the increase of wastewater emission amount, the nutrient concentrations in water body
Constantly raise, and nitrogen, phosphorus are the one of the main reasons causing body eutrophication.Conventional biochemical processing process can effectively drop
The BOD of low sewage5And SS, but the nutrients such as simultaneous in sewage N, P can only be removed 10%-20%.Therefore, energy is found
Effectively it is used in process life in the countryside and livestock breeding wastewater and denitrification and dephosphorization method more stable, economic, efficient is the most aobvious
Obtain necessary and urgent.
At present, artificial swamp obtain as a kind of low cost, the water technology of low energy consumption the extensive concern of people with
Research.Artificial swamp thus is reached by physics, chemical and biological synergism by wetland plant, medium filter bed and microorganism
Remove the purpose of water pollutant.Tidal flow artificial wetland is artificial swamp field one of remarkable break-throughs over nearly 15 years." tide
Stream " refer to that sewage periodically infiltrates the method for operation of wet land filler in the driving of pump.Compared with traditional artificial swamp, tide
It is high that artificial swamp under the nighttide stream method of operation has oxygen transfer rate, ensures that sewage is fully contacted with filler, thoroughly solves tradition and hangs down
The advantage such as problem of the uneven and short stream of water distribution in direct current artificial swamp.
The microorganism of anode of microbial fuel cell room by convert in water organic produce electronics, proton and other
Some Organic substances, wherein proton arrives negative electrode by diaphragm material, and electronics is delivered to negative electrode through external circuit, at negative electrode, electricity
Son, proton and electron acceptor react, thus complete the electricity generation process of electric current transmittance process, i.e. microbiological fuel cell,
In this process, if be used by produced electric energy, considerable environmental benefit and economic benefit can be produced.Medium
(such as gravel, haydite etc.), water plant and microorganism are the basic compositions of artificial swamp, and artificial swamp lower floor is attached on medium
Microorganism be in anaerobic state, the treatment effect of wetland sewage can be affected, but this exactly detests for anode of microbial fuel cell
Oxygen environment provides advantageous condition, additionally, the oxygen of secreting of artificial swamp upper plant root system act as Microbial fuel electricity
The structure of pool cathode also provides convenience.
Chinese invention patent, Authorization Notice No.: CN 103708622 B, authorized announcement date: 2015.02.25, disclose one
Plant the microbiological fuel cell constructed wetland device efficiently processing organic sewage, belong to sewage disposal and lead with electrochemical couple technology
Territory.Planting emergent aquactic plant group in the multimedium filter bed of artificial swamp and arrange many group aeration tubes and exhaustor, both sides are provided with and become a mandarin
Water distribution area and go out adfluxion pool, connects water system, return-flow system and drainage system respectively, and artificial swamp is divided into by bentonite
Upper and lower two-layer is respectively arranged at least one piece of graphite felt, and lower floor is that anaerobic zone (anode chamber) is produced electricity by microbiological oxidation Organic substance
Son and proton, upper strata is that aerobic zone (cathode chamber) is delivered to negative electrode formation by plant and aeration tube oxygen supply, electronics by external circuit
Electric current, owing to the difference of room, Yin/Yang pole oxidation-reduction potential produces voltages thus constitutes microbiological fuel cell artificial swamp.Should
Invention energy organics removal simultaneously and generation electric energy, high treating effect, operation expense is low, energy-conserving and environment-protective.Its weak point
Being: this device is divided into multistage, easily blocks, the later stage will be caused after blocking to run, and management process is many simultaneously, more complicated, enters
Water mode is single.
Summary of the invention
1. to solve the technical problem that
There will be when processing sewage for existing artificial swamp coupling microbiological fuel cell can not efficient long time stable
Remove nitrogen and the problem of phosphorus in sewage, the invention provides the dirt of a kind of tidal flow artificial wetland coupling microbiological fuel cell
Water treatment system, this system takes full advantage of and is combined process with microbiological fuel cell at tidal current method of operation constructed wetlands
Sewage, improves oxygen transfer rate, it is achieved that the more purpose of efficient sewerage processing.
2. technical scheme
For solving the problems referred to above, the technical scheme that the present invention provides is:
The sewage disposal system of a kind of tidal flow artificial wetland coupling microbiological fuel cell, including intake pool and circulation
Pond, also includes that coupling device, described intake pool connect with the bottom including coupling device, and coupling device is provided with Microbial fuel electricity
Pond, circulatory pool all connects with top and the bottom of coupling device, forms tidal current, is provided with out in the bottom of coupling device and middle part
The mouth of a river.
Preferably, coupling device is followed successively by cathode chamber, filtrate district, anode region, filtrate district and supporting layer from top to bottom.
Preferably, for reinforcement electron transfer speed, one layer of stainless (steel) wire is set on the surface of anode region, at stainless (steel) wire
On a floor cathode chamber be set collectively form electron transfer district, electron transfer district is positioned at middle part, filtrate district.
Preferably, anode region is connected by copper conductor titanium wire with the cathode chamber on coupling device top, in quickening system
Produce the formation of electro-biofilm, between the two poles of the earth, set up the external resistance of 700～1500 Ω.
Preferably, cathode chamber is exposed in air, its surface grafting water plant.
The sewage water treatment method of a kind of tidal flow artificial wetland coupling microbiological fuel cell, the steps include:
A, build above-described a kind of tidal flow artificial wetland coupling microbiological fuel cell sewage disposal system；
B, opening peristaltic pump, the former livestock breeding wastewater in intake pool enters in coupling device by peristaltic pump, Jing Guocheng
Torr floor sequentially enters filtrate district, anode region, cathode chamber, stops water inlet when the water yield reaches dischargeable capacity；
C, stay for some time after, by sewage in system by drain pump rapid deflation flowing in circulating water pool；
D, coupling device are after emptying state stays for some time, by reflux pump by sewage whole in circulatory pool according to tide
The water (flow) direction of nighttide stream processes requirement, makes inside sewage submergence coupling device；
E, stay for some time after, empty, pump into circulatory pool；
After F, some circulations to be done, water outlet is discharged by the outlet bottom coupling device.
Preferably, the water-cycling mode of tidal current goes out and current upper entering and lower leaving in including entering under current, wherein, enters under current
In the bottom that connected mode is circulating water pool that goes out and top be all connected with bottom coupling device；The connection of current upper intake lower outlet type
Mode is that circulating water pool top is connected with the top of coupling device, and the bottom of circulating water pool is connected with coupling device outlet conduit.
Preferably, the Nitrogen-and Phosphorus-containing sewage hydraulic load scope during described intake pool is distributed into described coupling device be 0.4～
1.0m3·m-2·d-1。
Preferably, water inlet COD (COD) concentration when 200～500mg/L scope, sewage Immersion time 30-60
Minute, emptying the 30-60 minute time of staying, circulate 1～3 time, water inlet COD (COD) concentration is 500～2000mg/L
During scope, sewage Immersion time 40-70 minute, empty the 90-120 minute time of staying, circulate 3～6 times.
Preferably, the polluted by nitrogen load range during described intake pool is distributed into described filtering device is 0～40gNm-2·d-1,
Polluted by nitrogen load is 0～20gNm-2·d-1During scope, circulating water pool sewage uses upper entering and lower leaving water distribution manner, and polluted by nitrogen load exists
20～40gNm-2·d-1During scope, circulatory pool sewage goes out water distribution manner in entering under using.
3. beneficial effect
The technical scheme using the present invention to provide, compared with prior art, has the advantages that
(1) present invention uses artificial swamp to couple microbiological fuel cell, to Nitrogen-and Phosphorus-containing under the method for operation of tidal current
Sewage processes, the effect that the synergism of artificial swamp coupling both microbiological fuel cells runs much larger than monotechnics
Really, meanwhile, use the method for operation of tidal current to improve oxygen transfer rate and sewage and the contact rate of filler, and then improve sewage
Treatment effeciency.
(2) in artificial swamp of the present invention coupling microbial fuel cell unit, negative electrode all uses activated carbon with anode, improves
The electric conductivity of device；
(3) artificial swamp of the present invention reaction filtrate uses the dehydration aluminum mud of certain proportion mixing and broken cordierite, to waste water
In nitrogen phosphorus have higher clearance, improve the removal effect to sewage；
(4) selected materials of the present invention is with low cost, effect notable, is especially suitable for domestic sewage in rural areas and livestock breeding wastewater
Process, there is bigger market prospect and application value；Existing document there is artificial swamp to tie with microbiological fuel cell
Conjunction processes the technology of sewage, rarely has employing artificial swamp coupling microbiological fuel cell to process raw under the method for operation of tidal current
Sewage alive or livestock breeding wastewater；And use the method for operation of tidal current to improve contacting of oxygen transfer rate and sewage and filler
Rate, and then improve the treatment effeciency of sewage；Meanwhile, from the point of view of angle of sustainable development, a kind of zero carbon row's self-operating is sustainable
Method of wastewater treatment and improve the sewage disposal technology of clearance of sewage disposal N, P for realizing environmental benefit, economic effect
The win-win of benefit and social benefit is significant；
(5) present invention uses the method for operation of tidal current, makes waste water periodically infiltrate wet land filler in the driving of pump,
Improve oxygen transfer rate, ensure that sewage is fully contacted with filler, thoroughly solve water distribution in conventional vertical artificial wetland uneven with
The problem of short stream.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
In figure: 1, intake pool；2, external resistance；3, negative electrode；4, water plant；5, coupling device；6, anode；7, electrode material
Material；8, stainless (steel) wire；9, filtrate district；10, supporting layer；11, circulatory pool；12, drain pump；13, reflux pump.
Detailed description of the invention
The present invention will be further described with embodiment below in conjunction with the accompanying drawings.
The sewage disposal system of a kind of tidal flow artificial wetland coupling microbiological fuel cell, including intake pool 1 and circulation
Pond 11, it is characterised in that also include that coupling device 5, described intake pool 1 connect with the bottom including coupling device 5, coupling device
5 are provided with microbiological fuel cell, and circulatory pool 11 all connects with top and the bottom of coupling device 5, form tidal current, at coupling dress
Bottom and the middle part of putting 5 are provided with outlet.When using upper entering and lower leaving water distribution manner, circulatory pool 11 connects with the bottom of coupling device 5
Logical pipeline is provided with drain pump 12, and the pipeline that circulatory pool 11 connects with the top of coupling device 5 is provided with reflux pump 13.Use
Under enter in when going out water distribution manner, the pipeline that circulatory pool 11 top connects with coupling device 5 is provided with drain pump 12, circulatory pool 11 end
The pipeline that portion connects with coupling device 5 is provided with reflux pump 13.
The purpose of drain pump 12 is for the sewage in rapid deflation coupling device 5, is entered by sewage in circulatory pool 11, carries
High system oxygen transfer rate and sewage and the contact rate of filler, improve the clearance of pollutant；The purpose of reflux pump 13 is to follow
Water in cisterna ambiens 11 is distributed in coupling device 5, improves clearance by repeated multiple times circular flow.Two kinds of different water distribution manners
Under be intended to arrange drain pump 12 and reflux pump 13.
Coupling device 5 is followed successively by cathode chamber 3, filtrate district 9, anode region 6, filtrate district 9 and supporting layer 10 from top to bottom.Negative electrode
District 3 is exposed in air, its surface grafting water plant 4.On the surface of anode region 6, one is arranged for strengthening electron transfer speed
Layer stainless (steel) wire 8, arranges a floor cathode chamber 3 on stainless (steel) wire 8 and collectively forms electron transfer district, and electron transfer district is positioned at filter
Material middle part, district 9.Anode region 6 is connected by the copper conductor titanium wire of a diameter of 1mm with the cathode chamber 3 on coupling device 5 top,
For producing the formation of electro-biofilm in quickening system, between the two poles of the earth, set up the external resistance 2 of 700～1500 Ω.
The sewage water treatment method of a kind of tidal flow artificial wetland coupling microbiological fuel cell, the steps include:
A, build above-described a kind of tidal flow artificial wetland coupling microbiological fuel cell sewage disposal system；
B, opening peristaltic pump, the former livestock breeding wastewater in intake pool 1 enters in coupling device 5 by peristaltic pump, water inlet
It is 0～40gNm that pond 1 is distributed into the Nitrogen-and Phosphorus-containing sewage hydraulic load scope of described coupling device 5-2·d-1, through supporting layer 10 successively
Enter filtrate district 9, anode region 6, cathode chamber 3, when the water yield reaches dischargeable capacity, stop water inlet；
C, stay for some time after, by sewage in system by drain pump 12 rapid deflation flowing in circulating water pool 11；
D, coupling device 5 are after emptying state stays for some time, by reflux pump 13 by sewage whole in circulatory pool 11
Water (flow) direction according to tidal current processes requirement, makes sewage submergence coupling device 5 internal；
E, stay for some time after, empty, pump into circulatory pool 11；
After F, some circulations to be done, water outlet is discharged by the outlet bottom coupling device 5.
The water-cycling mode of tidal current goes out and current upper entering and lower leaving in including entering under current, wherein, goes out in entering under current
Connected mode is the bottom of circulating water pool 11 and top is all connected with bottom coupling device 5；The connection side of current upper intake lower outlet type
Formula is that circulating water pool 11 top is connected with the top of coupling device 5, and the bottom of circulating water pool 11 is with coupling device 5 outlet conduit even
Connect.
Water inlet COD (COD) concentration when 200～500mg/L scope, sewage Immersion time 30-60 minute, row
The empty 30-60 minute time of staying, circulate 1～3 time, COD (COD) concentration of intaking when 500～2000mg/L scope,
Sewage Immersion time 40-70 minute, empties the 90-120 minute time of staying, circulates 3～6 times.
The polluted by nitrogen load range that intake pool 1 is distributed in described filtering device is 0～40gNm-2·d-1, polluted by nitrogen load
0～20gNm-2·d-1During scope, circulating water pool 11 sewage uses upper entering and lower leaving water distribution manner, polluted by nitrogen load 20～
40gNm-2·d-1During scope, circulatory pool 11 sewage goes out water distribution manner in entering under using.
Embodiment 1: certain domestic sewage in rural areas is processed
Certain domestic sewage in rural areas is processed, proposes the dirt of a kind of tidal flow artificial wetland coupling microbiological fuel cell
Water treatment system, in conjunction with Fig. 1, it includes intake pool 1, coupling device 5 and circulatory pool 11, and coupling device includes cathode chamber, filtrate
District, anode region, described coupling device 5 is divided into cathode chamber 3, filtrate district 9, anode region 6, filtrate district 9 and supporting layer from top to bottom
10, cathode chamber 3 is exposed in air, the water plant 4 of the certain density of its surface grafting, and plant is wet land system (i.e. Manual moist
Ground) key component, plant treatment can be with adsorption and enrichment heavy metal and some harmful substances, and root system can be that cathode chamber 3 carries
Oxygen, as electron acceptor, can reduce its internal resistance simultaneously, and then improve system voltage；To different artificial swamp types,
The planting density of plant is different, and in the artificial swamp of the present embodiment, water plant 4 planting density scope is 9～15 strains/m2,
Water plant 4 is phragmites communis, Herba vallisneriae Spiralis, common cattail etc..
Simultaneously for strengthening electron transfer speed laying stainless (steel) wire 8 in the middle of anode region 6 and cathode chamber 3, lay rustless steel
Net 8 can prevent oxygen from spreading to anode region 6 from cathode chamber 3 as the physical barriers between the two poles of the earth, stop the end between twoth district
Thing exchanges.
Anode region 6 is connected by the copper conductor titanium wire of a diameter of 1mm with cathode chamber 3, biological for producing electricity in quickening system
The formation of film, sets up the external resistance 2 of 1000 Ω between two-stage.Anode region 6 differs the biggest with the electromotive force on cathode chamber 3, the electricity of output
Press the biggest, use this connected mode to advantageously reduce system internal resistance, improve output, accelerate to produce the formation of electro-biofilm,
Accelerating course of reaction, if using plain conductor, its electric conductivity will be reduced.
The selection of electrode material 7 is the key factor affecting this technology, generally uses high electrical conductivity energy and non-oxygen
The material of the property changed, such as graphite felt, graphite cake, stainless (steel) wire, carbon cloth etc., in the present embodiment, anode region 6 and the electricity on cathode chamber 3
Pole material 7 is the preferable activated carbon of electric conductivity.
The filtrate in filtrate district 9 is the mixture of aluminum mud and broken cordierite, and using aluminum mud and broken cordierite is filtrate, is because
Aluminum mud has preferable removal effect for the nitrogen in waste water of livestock poultry, and adding broken cordierite is in order to anti-locking apparatus blocks, it is also possible to
Change other filtrate into, such as the mixture of haydite with the mixture of stone, cinder and stone.
Supporting layer 10 is made up of cobblestone, and supporting layer 10 should not hinder drainage flow；And the particle diameter of rubble is less, if used
Rubble, as supporting layer 10, should select mean diameter rubble between 3～7cm, if the too small meeting of mean diameter makes sewage stream
Dynamic slack-off.
Use artificial swamp coupling microbiological fuel cell, under the method for operation of tidal current to Nitrogen-and Phosphorus-containing sewage at
Reason, the effect that the synergism of artificial swamp coupling both microbiological fuel cells runs much larger than monotechnics, use meanwhile
The method of operation of tidal current improves oxygen transfer rate and sewage and the contact rate of filler, and then improves the treatment effeciency of sewage.
In artificial swamp coupling microbial fuel cell unit, negative electrode all uses activated carbon with anode, improves the electric conductivity of device；
Artificial swamp reaction filtrate uses the dehydration aluminum mud of certain proportion mixing and broken cordierite, has higher to the nitrogen phosphorus in waste water of livestock poultry
Clearance, improve the removal effect to sewage；Selected materials is with low cost, effect is notable, is especially suitable for life in the countryside dirty
Water and livestock breeding wastewater process, and have bigger market prospect and application value.
The sewage disposal system of a kind of tidal flow artificial wetland coupling microbiological fuel cell, the steps include:
A, build above-described a kind of tidal flow artificial wetland coupling microbiological fuel cell sewage disposal system；
B, opening peristaltic pump, the former livestock breeding wastewater in intake pool 1 enters in coupling device 5 by peristaltic pump, passes through
Supporting layer 10 sequentially enters filtrate district 9, anode region 6, cathode chamber 3, stops water inlet when the water yield reaches dischargeable capacity；
C, stay for some time after, by sewage in system by drain pump 12 rapid deflation flowing in circulating water pool 11；
D, coupling device 5 are after emptying state stays for some time, by reflux pump 13 by sewage whole in circulatory pool 11
From top to bottom it is distributed in system, makes inside sewage immersion system；
E, stay for some time after, empty, pump into circulatory pool 11；
Stop in step C, D and E is to make waste water of livestock poultry be fully contacted reaction with the filtrate in device, improving sewage
Treatment effect；
After F, some circulations to be done, water outlet is discharged by bottom of device.
Wherein, tank 1 radius 1.5m, high 1.2m, effective depth 1m, make by PVC material；Circulating water pool 11 and water storage
Pond 1 is identical；Artificial swamp coupling microbial fuel cell unit is cylindrical, diameter 50cm, total height 80cm；Cloudy from top to bottom
The height of polar region 3 be the height in 5cm, 25cm filtrate district 9 be 25cm, the height of anode region 6 is 10cm, and the height in filtrate district 9 is
25cm, the height of supporting layer 10 is 15cm.
Wherein, water inlet COD (COD) concentration is when 200mg/L, and sewage Immersion time 30 minutes, when emptying stops
Between 30 minutes, circulate 1 time.
The polluted by nitrogen load range that intake pool 1 is distributed in coupling device 5 is 0gNm-2·d-1, circulating water pool 11 sewage uses
Upper entering and lower leaving water distribution manner.
This system is run 3 months continuously, is monitored effluent quality every 4 days, after rural domestic sewage treatment, and water outlet
Middle total nitrogen and total phosphorus all have higher removal effect, and other water quality index also maintain higher clearance, as shown in table 1.
The water inlet of certain domestic sewage in rural areas and effluent quality test index situation in table 1 embodiment 1
| Test index | SS(mg/L) | COD(mg/L) | NH3-N(mg/L) | TN(mg/L) | TP(mg/L) |
| Tank is intake | 150～260 | 200～500 | 39.2～59.8 | 68.1～90.9 | 9.5～14.5 |
| Total water outlet | 5.2～9.6 | 31.7～45.2 | 2.7～4.3 | 7.2～11.6 | 0.4～0.6 |
| Clearance (%) | 97～99 | 95～98 | 94～98 | 90～95 | 98～99 |
Embodiment 2: certain animal farm wastewater is processed
Certain animal farm wastewater is processed, proposes the sewage of a kind of tidal flow artificial wetland coupling microbiological fuel cell
Processing system, in conjunction with Fig. 1, tank 1 and 3 radius 2m, total height 2m, effective depth 1.8m, brick mix structure, external resistance 2 is 700
Ω。
Water inlet COD (COD) concentration when 300mg/L, sewage Immersion time 40 minutes, empty the time of staying 40
Minute, circulate 2 times.The polluted by nitrogen load that intake pool 1 is distributed in described filtering device is 10gNm-2·d-1, circulating water pool 11 is dirty
Hydromining upper entering and lower leaving water distribution manner.Other parts are with embodiment 1.
This system is run 2 months continuously, is monitored effluent quality every 5 days, and result of study shows, animal farm wastewater
In total nitrogen and total phosphorus all have higher removal effect, as shown in table 2.
The water inlet of certain animal farm wastewater and effluent quality test index situation in table 2 embodiment 2
Embodiment 3: certain chicken farm waste water is processed
Certain chicken farm waste water is processed, proposes the sewage of a kind of tidal flow artificial wetland coupling microbiological fuel cell
Processing system, in conjunction with Fig. 1, tank 1 and 3 radius 2m, total height 1.8m, effective depth 1.5m, brick mix structure；External resistance 2 is
1500Ω。
Water inlet COD (COD) concentration when 500mg/L, sewage Immersion time 60 minutes, empty the time of staying 60
Minute, circulate 3 times.The polluted by nitrogen load that intake pool 1 is distributed in described filtering device is 40gNm-2·d-1, circulating water pool 11 is dirty
Hydromining upper entering and lower leaving water distribution manner.Other parts are with embodiment 1.
This system is run 3 months continuously, is monitored effluent quality every 5 days, and result of study shows, animal farm wastewater
In total nitrogen and total phosphorus all have higher removal effect, as shown in table 3.
The water inlet of certain chicken farm waste water and effluent quality test index situation in table 3 embodiment 3
Embodiment 4
The present embodiment is similar with embodiment 1-3, and wherein difference is, the water plant 4 of cathode chamber 3 surface grafting
For phragmites communis, planting density is 9 strains/m2；Electrode material 7 selects graphite felt；The filtrate in filtrate district 9 is the mixing of haydite and stone
Thing；Supporting layer 10 be mean diameter be the rubble of 3cm.
Water inlet COD (COD) concentration when 500mg/L, sewage Immersion time 40 minutes, empty the time of staying 90
Minute, circulate 3 times；Polluted by nitrogen load is 20gNm-2·d-1Time circulatory pool 11 sewage use under enter in go out water distribution manner.
Embodiment 5
The present embodiment is similar with embodiment 1-3, and wherein difference is, the water plant 4 of cathode chamber 3 surface grafting
For, Herba vallisneriae Spiralis, planting density is 15 strains/m2.Electrode material 7 selects graphite cake；The filtrate in filtrate district 9 is the mixing of cinder and stone
Thing；Supporting layer 10 be mean diameter be the rubble of 7cm.
Water inlet COD (COD) concentration when 2000mg/L, sewage Immersion time 70 minutes, empty the time of staying
120 minutes, circulate 6 times.Polluted by nitrogen load is 40gNm-2·d-1Time circulatory pool 11 sewage use under enter in go out water distribution manner.
Embodiment 6
The present embodiment is similar with embodiment 1-3, and wherein difference is, the water plant 4 of cathode chamber 3 surface grafting
For common cattail, planting density is 10 strains/m2.Electrode material 7 selects carbon cloth；What the filtrate in filtrate district 9 was haydite with stone is mixed
Compound；Supporting layer 10 be mean diameter be the rubble of 5cm.
Water inlet COD (COD) concentration when 1000mg/L, sewage Immersion time 50 minutes, empty the time of staying
100 minutes, circulate 5 times.Polluted by nitrogen load is at 30gNm-2·d-1Time circulatory pool 11 sewage use under enter in go out water distribution manner.
Claims (5)
1. a sewage disposal system for tidal flow artificial wetland coupling microbiological fuel cell, including intake pool (1) and circulation
Pond (11), it is characterised in that also include that coupling device (5), described intake pool (1) connect with the bottom including coupling device (5),
Coupling device (5) is provided with microbiological fuel cell, and circulatory pool (11) all connects with top and the bottom of coupling device (5), is formed
Tidal current, is provided with outlet in the bottom of coupling device (5) and middle part.
The sewage disposal system of a kind of tidal flow artificial wetland the most according to claim 1 coupling microbiological fuel cell,
It is characterized in that, coupling device (5) be followed successively by from top to bottom cathode chamber (3), filtrate district (9), anode region (6), filtrate district (9) and
Supporting layer (10).
The sewage disposal system of a kind of tidal flow artificial wetland the most according to claim 2 coupling microbiological fuel cell,
It is characterized in that, for strengthening electron transfer speed, one layer of stainless (steel) wire (8) is set on the surface of anode region (6), at rustless steel
Arranging a floor cathode chamber (3) on net (8) and collectively form electron transfer district, electron transfer district is positioned at filtrate district (9) middle part.
4. the sewage of microbiological fuel cell is coupled according to a kind of tidal flow artificial wetland described in claim 1-3 any one
Processing system, it is characterised in that anode region (6) are connected with the cathode chamber (3) on coupling device (5) top, for producing in quickening system
The formation of electro-biofilm, sets up the external resistance (2) of 700～1500 Ω between the two poles of the earth.
The sewage disposal system of a kind of tidal flow artificial wetland the most according to claim 1 coupling microbiological fuel cell,
It is characterized in that, cathode chamber (3) are exposed in air, its surface grafting water plant (4).
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105836894A (en) * | 2016-05-31 | 2016-08-10 | 环境保护部南京环境科学研究所 | System and method for treating wastewater by coupling of tidal flow constructed wetlands and microbial fuel cells |
| CN107900095A (en) * | 2017-11-27 | 2018-04-13 | 哈尔滨工业大学 | A kind of self-generated electricity up-flow wetland contaminated soil remediation device and restorative procedure |
| CN108933272A (en) * | 2017-05-25 | 2018-12-04 | 本田技研工业株式会社 | Fuel cell pack |
-
2016
- 2016-05-31 CN CN201620514194.1U patent/CN205874017U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105836894A (en) * | 2016-05-31 | 2016-08-10 | 环境保护部南京环境科学研究所 | System and method for treating wastewater by coupling of tidal flow constructed wetlands and microbial fuel cells |
| CN105836894B (en) * | 2016-05-31 | 2019-02-15 | 环境保护部南京环境科学研究所 | A kind of sewage disposal system and method for tidal flow artificial wetland coupling microbiological fuel cell |
| CN108933272A (en) * | 2017-05-25 | 2018-12-04 | 本田技研工业株式会社 | Fuel cell pack |
| CN107900095A (en) * | 2017-11-27 | 2018-04-13 | 哈尔滨工业大学 | A kind of self-generated electricity up-flow wetland contaminated soil remediation device and restorative procedure |
| CN107900095B (en) * | 2017-11-27 | 2020-01-14 | 哈尔滨工业大学 | Self-generating current-rising wetland polluted soil remediation device and remediation method |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20170111 Termination date: 20200531 |