CN208471684U - A kind of photocatalysis-microbiological fuel cell sewage treatment set composite - Google Patents
A kind of photocatalysis-microbiological fuel cell sewage treatment set composite Download PDFInfo
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- CN208471684U CN208471684U CN201820541214.3U CN201820541214U CN208471684U CN 208471684 U CN208471684 U CN 208471684U CN 201820541214 U CN201820541214 U CN 201820541214U CN 208471684 U CN208471684 U CN 208471684U
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- fuel cell
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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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Abstract
The utility model discloses a kind of photocatalysis-microbiological fuel cell sewage treatment set composites, double anode electrode is set in the anode chamber of microbial fuel cells system, one is conductor photocatalysis anode, one is anode of microbial fuel cell, they connect the cathode of cathode chamber with parallel fashion by external load circuit simultaneously.The utility model passes through photocatalysis anode successful conversion luminous energy, efficiently use sunlight, and with the electroactive microorganism harmonious coexistence of anode, anode chamber is enhanced to the processing capacity of organic pollutant, semiconductor mineral photoelectron and extracellular microbial exoelectron are transmitted to cathode chamber simultaneously, cathode chamber is further improved to the processing capacity of heavy metal ion-containing waste water, collaboration improves organic-inorganic waste water treatment efficiency.And the sewage treatment set composite stability is high, easy to maintain, is easily transformed, possesses wide application space.
Description
Technical field
The utility model relates to organic-inorganic water quality pollutant processing technology fields, and in particular to a kind of composite semiconductor light
The low energy consumption waste water high-efficiency processing unit of the double anode cooperative system of catalyticing anode and microbiological fuel cell.
Background technique
Environmental problem is one of 21 century facing mankind and significant problem urgently to be resolved, water correction and its is protected to safety
The demand of barrier is all the basic pursuit of water process science and technology always.It is fast-developing with modern industrialization, organic wastewater with
Heavy metal wastewater thereby causes considerable damage effect to natural environment.Energy technology emerging as one in recent years, microorganism combustion
Expect battery (Microbial Fuel Cell, MFC) with its it is unique by bioelectrochemistry approach realize chemical energy and electric energy it
Between convert the characteristics of cause include sewage treatment and biology produce electricity etc. numerous areas extensive concern.Although each field scholar is to it
The various aspects such as reactor configuration, anode and cathode material, electrolyte, microbial population have carried out extensive research, still there is output
The problems such as voltage is lower limits its actual application ability.In addition to MFC technology, another technology is also obtained in terms of environmental improvement
To be widely applied.Photocatalysis using its under room temperature can directly using luminous energy as light source come special performances such as drive responses, at
For a kind of ideal environmental pollution treatment technology and clear energy sources production technology.Photocatalysis and photoelectrocatalysis exist on this basis
The environment protection fields such as the organic pollutants such as azo dyes, aromatic compound obtain fast development.By the light of various semiconductor materials
Catalysis process can remove the thorough mineralising of Some Organic Pollutants, provide be considered as a kind of great future environmental pollution it is deep
Spend purification techniques.
Although two kinds of new technologies have all carried out correlative study in respective field, rapid progress is achieved.However at present with purple
- TiO outside2It is widely applied in sterilization process for the photocatalysis and photoelectrocatalysis of representative, so that itself and Microbial fuel electricity
Two, pond, which seems the rare intersection in the field contradicted, to be occurred.Although the semiconductor minerals such as rutile material and synthetic material are micro-
Biological-cathode existing research, but conductor photocatalysis anode-microbiological fuel cell combination research is extremely rare, constructs harmony
Photocatalysis anode microbial fuel cell unit very attractive.More technology combinations how are carried out, novel microbial fuel is constructed
Battery-efficient handles organic/heavy metal wastewater thereby, is one of microbiological fuel cell the main direction of development, latent with tremendous expansion
Power.
Utility model content
The purpose of this utility model is to provide a kind of easily preparation, the light that low in cost, structure is simple, reusable to urge
Change-microbiological fuel cell sewage treatment set composite, can Efficient Conversion luminous energy, it can be achieved that organic wastewater with contain heavy metal
Cationic inorganic waste water is handled simultaneously, and the anode material of the device, microbial population, unit configuration etc. can all advanced optimize and change
Into the new type of microbial fuel cell processing unit of realization high efficiency low cost sewage treatment.
Photocatalysis provided by the utility model-microbiological fuel cell sewage treatment set composite, including Microbial fuel
Battery system, the microbial fuel cells system have anode chamber and cathode chamber, which is characterized in that have in the anode chamber double
Anode electrode, one is conductor photocatalysis anode, and one is anode of microbial fuel cell, they are led to simultaneously with parallel fashion
Cross the cathode of external load circuit connection cathode chamber.
Further, in above-mentioned sewage treatment set composite, the side wall upper part of the anode chamber sets water inlet, and lower part is equipped with
Water outlet.Dose delivery system is provided between inlet and outlet, by sewage transport to be processed to anode chamber.It is described
Dose delivery system includes liquid-collecting bottle, peristaltic pump and pipeline etc..
The cathode of the sewage treatment set composite is directly connected with atmosphere, and the sewage containing heavy metal ion can be direct
Cathode chamber is added, after heavy metal ion reduction, waste water containing inorganic heavy metal ion is effectively treated, and can be replaced new sewage
Lasting processing.It is separated between the anode chamber and cathode chamber by proton membrane.
The sewage treatment set composite further includes light-source system, and what the light-source system can be simulation daylight source is
System or sunlight convergence module.The system of simulation daylight source for example issues the LED light source of visible light, compared to ultraviolet
The light source generation systems such as lamp, xenon lamp, LED light source save energy consumption, optimize reaction condition.And sunlight convergence module can be direct
Realize the utilization of sunlight.
In above-mentioned sewage treatment set composite, the material of the conductor photocatalysis anode be can be through simple hydrothermal method
The TiO to visible light with good absorption ability of preparation2/Fe2O3Composite semiconductor material is carried on FTO (Fluorine-
Doped Tin Oxide) electrode surface, form combination electrode.Fe in combination electrode2O3It is directly contacted with anode chamber's solution, compared with
TiO2, Fe2O3It is more mild, eliminate TiO2To the photocatalysis damaging action of microorganism；Fe simultaneously2O3(2.0-2.2eV) prohibits
Bandwidth is less than TiO2(3.2eV), combination electrode have widened spectrum of sunlight absorption region, preferably conversion luminous energy.
In above-mentioned sewage treatment set composite, carbon felt electrode material, micro- life is can be selected in the anode of microbial fuel cell
Object is inoculated with the edaphon fuel cell from laboratory stable operation, is not limited to specified microorganisms, can be inoculated with dirty from activity
The various microorganisms such as mud, soil, bottom mud in lake.Cheap graphite electrode can be selected in cathode electrode material, but is not limited to graphite
Plate can be the multiple materials such as porous carbon cloth, stainless (steel) wire, porous graphite plate, significantly reduce cost.
The technical advantage of the utility model has 3 points: one mainly to construct Novel double-anode microbiological fuel cell, light
Catalyticing anode successful conversion luminous energy, realizes the effective use of sunlight；Second is that photocatalysis combination electrode property is stablized, with sun
Extremely electroactive microorganism harmonious coexistence, anode chamber is enhanced in the case where not damaging anode chamber's microbiological condition to the place of organic pollutant
Reason ability；Third is that bianode setting is so that semiconductor mineral photoelectron and extracellular microbial exoelectron are transmitted to cathode chamber simultaneously,
The processing capacity of heavy metal ion-containing waste water in cathode chamber is further improved, collaboration improves organic-inorganic wastewater treatment effect
Rate.Meanwhile the sewage treatment set composite stability of the utility model is high, it is easy to maintain, and current microbiological fuel cell in addition
It is many kinds of, the potentiality that it is accordingly transformed can further be promoted microbiological fuel cell and be answered in terms of pollutant process
With possessing wide application space.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the sewage treatment set composite of the utility model embodiment, in which: 1-TiO2/Fe2O3
Composite semiconductor electrode, 2- microorganism carbon felt electrode, 3- circuit loads outside and current monitoring system, the matter between 4- the anode chamber and the cathode chamber
Sub- film, 5- pectination graphite electrode, 6- simulate daylight source, the anode chamber 7- water inlet, the anode chamber 8- water outlet, 9- peristaltic pump.
Fig. 2 is the sewage treatment set composite anode wastewater containing phenol degradation efficiency comparison chart of the utility model embodiment.
Fig. 3 is that the sewage treatment set composite cathode chamber of the utility model embodiment is compared containing Cr (IV) water treatment effect
Figure.
Specific embodiment
With reference to the accompanying drawing, the utility model is described further by embodiment.
As shown in Figure 1, the sewage treatment set composite of the present embodiment includes: TiO2/Fe2O3Composite semiconductor electrode 1, it is micro-
Biological carbon felt electrode 2, circuit loads outside and current monitoring system 3, proton membrane 4 between the anode chamber and the cathode chamber, and pectination graphite electrode 5 is compacted
The dose delivery systems such as dynamic pump 9, in which: TiO2/Fe2O3Composite semiconductor electrode 1 is load TiO2/Fe2O3Composite semiconductor material
The FTO electrode of material, and microorganism carbon felt electrode 2 are located in anode chamber, and pectination graphite electrode 5 is located in cathode chamber, anode chamber
With water inlet 7 and water outlet 8.Double anode (TiO2/Fe2O3Composite semiconductor electrode 1 and microorganism carbon felt electrode 2) in arranged side by side
Form, while external load current detection system is connected, and connect cathode (pectination graphite electrode 5), it is seen that light is mentioned by LED light source
For, simulation daylight source 6 is formed, it is more light easy to operate and cost is lower compared with xenon source used in traditional photocatalysis.It is micro-
Biological fuel cell anode room start battery used medium is sodium acetate autogamy aqueous solution, and the inoculation of anode microbiologic population is from fact
The red soil MFC that room is run steadily in the long term is tested, cathode is 0.1mol/LKCl solution, bubble blasted, microbiological fuel cell is started,
Wastewater treatment experimental study is carried out after battery is stablized within about one week.
When the illumination that simulation daylight source 6 emits some strength is mapped to TiO2/Fe2O3When on composite semiconductor electrode 1, electricity
Son transits to conduction band from valence band, generates photoelectron and photohole, and internal in composite semiconductor electrode 1 to form p-n junction, electronics is empty
Cave separative efficiency is high, and hole has oxidisability, can break organic chemical contaminant key and be allowed to degrade, while microorganism is with organic
Pollutant realizes anode organic pollutant degradation as carbon source during respiration, the two jointly.At the same time, extracellular microbial
Exoelectron and semi-conductor photoelectronic pass through external circuit and are transmitted to cathode jointly, and cathode heavy metal wastewater thereby rate of reduction further adds
Fastly, and then while realizing quick two kinds of waste water it is effectively treated.
Below by way of the above-mentioned sewage treatment set composite of experimental verification to wastewater containing phenol and containing the place of Cr (IV) waste water
Manage effect.
After microbiological fuel cell is stablized, anode culture medium is replaced into the culture medium of sodium acetate containing phenol (40mg/L),
Cathode chamber is containing K2Cr2O7The artificial synthesized waste water of (50mg/L) compared the treatment effect (figure using set composite shown in Fig. 1
Indicated in 2 and Fig. 3 with " NEW TYPE OF COMPOSITE device "), the treatment effect of common micro-organisms fuel cell (is used " commonly in Fig. 2 and Fig. 3
MFC " is indicated), anode does not have the treatment effect (being indicated in Fig. 2 and Fig. 3 with " photocatalysis group ") of the photocatalysis group of microbe inoculation,
And anode is without photocatalysis and the treatment effect of sterile blank control group (being indicated in Fig. 2 and Fig. 3 with " blank control group ").Sun
Pole solution phenol content is surveyed with the measurement of 4-AA method, cathode Cr (IV) concentration by diphenyl carbazide spectrophotometry
It is fixed.Sampling is measured using ultraviolet-uisible spectrophotometer (Evolution 220, Thermo Scientific) in experimentation
Absorbance at respective characteristic peak calculates phenol and Cr (IV) removal rate R, its respectively degradation rate R expression of t moment according to formula (1)
Are as follows:
R=(C0-Ct)/C0× 100% formula (1)
Wherein, C0、CtRespectively represent initial time pollutant concentration and t moment pollutant concentration (mg/L).
Anode chamber's phenol removes experimental result as shown in Fig. 2, blank group phenol content is basically unchanged (< 5%), common MFC
Pyrogentisinic Acid has degradation capability, and degradation rate is 56.5% after 3h；Degradation rate is after the pure photocatalysis group of non-microbe inoculation, 3h
35.5%.And in the sewage treatment set composite of the utility model, the degradation rate of phenol is up to 82.6%, and treatment effeciency is remote
Higher than traditional common micro-organisms fuel cell, illustrate that utility model device anode processing organic pollutant ability is effectively mentioned
It rises.Fig. 3 is treatment effect result figure under cathode chamber Cr (IV) different condition, and the present apparatus shows significant heavy metal ion Cr (IV)
Processing capacity, sewage treatment set composite 3.5h realize 92.6% removal rate, be much higher than common MFC (48.1%) and photocatalysis
Group (58.4%), cathode heavy metal-containing wastewater treatment significant effect are promoted.
Experiment shows the bianode photocatalysis of the utility model-microbiological fuel cell sewage treatment set composite success
Common micro-organisms Battery disposal pollutant ability is improved, and realizes the successful conversion of solar energy, degree more bottom of consuming energy, the later period
The intensive treatment to complicated waste water can be achieved, open up microbiological fuel cell application field, there are tremendous expansion potentiality.
It is finally noted that the purpose for announcing specific embodiment is to help to further understand the utility model,
But it will be appreciated by those skilled in the art that: in the spirit and scope for not departing from the utility model and the attached claims
Interior, various substitutions and modifications are all possible.Therefore, the utility model should not be limited to embodiment disclosure of that, this reality
Subject to the scope defined in the claims with novel claimed range.
Claims (10)
1. a kind of photocatalysis-microbiological fuel cell sewage treatment set composite, including microbial fuel cells system, micro- life
Object fuel cell system has anode chamber and cathode chamber, which is characterized in that has double anode electrode in the anode chamber, one is
Conductor photocatalysis anode, one is anode of microbial fuel cell, they are connected by external load circuit simultaneously with parallel fashion
Connect the cathode of cathode chamber.
2. photocatalysis as described in claim 1-microbiological fuel cell sewage treatment set composite, which is characterized in that described
The side wall upper part of anode chamber sets water inlet, and lower part is equipped with water outlet.
3. photocatalysis as claimed in claim 2-microbiological fuel cell sewage treatment set composite, which is characterized in that into
The dose delivery system for the treatment of sewage is provided between the mouth of a river and water outlet.
4. photocatalysis as claimed in claim 3-microbiological fuel cell sewage treatment set composite, which is characterized in that described
Dose delivery system includes liquid-collecting bottle, peristaltic pump and pipeline.
5. photocatalysis as described in claim 1-microbiological fuel cell sewage treatment set composite, which is characterized in that described
It is separated between anode chamber and cathode chamber by proton membrane.
6. photocatalysis as described in claim 1-microbiological fuel cell sewage treatment set composite, which is characterized in that described
Sewage treatment set composite further includes light-source system, and the light-source system is the system or sunlight convergence mould for simulating daylight source
Block.
7. photocatalysis as claimed in claim 6-microbiological fuel cell sewage treatment set composite, which is characterized in that described
The system of simulation daylight source is the LED light source for issuing visible light.
8. photocatalysis as described in claim 1-microbiological fuel cell sewage treatment set composite, which is characterized in that described
Conductor photocatalysis anode is TiO2/Fe2O3Composite semiconductor material is carried on the combination electrode of FTO electrode surface formation.
9. photocatalysis as described in claim 1-microbiological fuel cell sewage treatment set composite, which is characterized in that described
Anode of microbial fuel cell is the carbon felt electrode for being vaccinated with microorganism.
10. photocatalysis as described in claim 1-microbiological fuel cell sewage treatment set composite, which is characterized in that described
Cathode is graphite electrode.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110451631A (en) * | 2019-07-31 | 2019-11-15 | 安徽环境科技集团股份有限公司 | A kind of method of enhanced biological electrochemical in-situ pollution waters restoration |
| CN110649289A (en) * | 2019-10-17 | 2020-01-03 | 中国电建集团华东勘测设计研究院有限公司 | Photocatalysis and artificial wetland composite fuel cell and sewage treatment method |
| CN111175356A (en) * | 2020-01-16 | 2020-05-19 | 北京航空航天大学 | Method for synchronously detecting biochemical oxygen demand and nitrate nitrogen content in water body based on bidirectional electron transfer electrochemical activity microorganisms |
| CN112125390A (en) * | 2020-09-28 | 2020-12-25 | 太原理工大学 | Device for assisting in strengthening biological anode to degrade antibiotics by adopting photocatalysis |
| CN112390459A (en) * | 2020-10-20 | 2021-02-23 | 衡阳师范学院 | Electrode for treating wastewater, wastewater treatment apparatus including the same, and wastewater treatment method |
| CN113506906A (en) * | 2021-07-08 | 2021-10-15 | 哈尔滨工业大学 | Photocatalytic tightly-coupled microbial fuel cell, preparation method and application |
| CN113683189A (en) * | 2021-09-23 | 2021-11-23 | 沈阳师范大学 | Method for reducing carbon, nitrogen and phosphorus in wastewater based on endogenous short-range denitrification-photoelectric-ternary coupling system |
| CN115594355A (en) * | 2022-10-31 | 2023-01-13 | 江西科技师范大学（Cn） | Photoelectrocatalysis water purification treatment system and method for pollutant in-situ degradation |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110451631A (en) * | 2019-07-31 | 2019-11-15 | 安徽环境科技集团股份有限公司 | A kind of method of enhanced biological electrochemical in-situ pollution waters restoration |
| CN110649289A (en) * | 2019-10-17 | 2020-01-03 | 中国电建集团华东勘测设计研究院有限公司 | Photocatalysis and artificial wetland composite fuel cell and sewage treatment method |
| CN110649289B (en) * | 2019-10-17 | 2023-10-20 | 中国电建集团华东勘测设计研究院有限公司 | Photocatalysis and constructed wetland compound fuel cell and sewage treatment method |
| CN111175356A (en) * | 2020-01-16 | 2020-05-19 | 北京航空航天大学 | Method for synchronously detecting biochemical oxygen demand and nitrate nitrogen content in water body based on bidirectional electron transfer electrochemical activity microorganisms |
| CN112125390A (en) * | 2020-09-28 | 2020-12-25 | 太原理工大学 | Device for assisting in strengthening biological anode to degrade antibiotics by adopting photocatalysis |
| CN112390459A (en) * | 2020-10-20 | 2021-02-23 | 衡阳师范学院 | Electrode for treating wastewater, wastewater treatment apparatus including the same, and wastewater treatment method |
| CN112390459B (en) * | 2020-10-20 | 2024-02-02 | 衡阳师范学院 | Electrode for treating wastewater, wastewater treatment apparatus including the same, and wastewater treatment method |
| CN113506906A (en) * | 2021-07-08 | 2021-10-15 | 哈尔滨工业大学 | Photocatalytic tightly-coupled microbial fuel cell, preparation method and application |
| CN113683189A (en) * | 2021-09-23 | 2021-11-23 | 沈阳师范大学 | Method for reducing carbon, nitrogen and phosphorus in wastewater based on endogenous short-range denitrification-photoelectric-ternary coupling system |
| CN113683189B (en) * | 2021-09-23 | 2022-12-02 | 沈阳师范大学 | Method for reducing carbon, nitrogen and phosphorus in wastewater based on endogenous short-range denitrification-photoelectric-ternary coupling system |
| CN115594355A (en) * | 2022-10-31 | 2023-01-13 | 江西科技师范大学（Cn） | Photoelectrocatalysis water purification treatment system and method for pollutant in-situ degradation |
| CN115594355B (en) * | 2022-10-31 | 2023-08-29 | 江西科技师范大学 | In-situ pollutant degradation photoelectrocatalysis water purification treatment system and method |
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