CN103811785A - Method for improving cell internal and external electron transfer efficiency and electricity generating performance of microbial fuel cell - Google Patents
Method for improving cell internal and external electron transfer efficiency and electricity generating performance of microbial fuel cell Download PDFInfo
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- CN103811785A CN103811785A CN201410078810.9A CN201410078810A CN103811785A CN 103811785 A CN103811785 A CN 103811785A CN 201410078810 A CN201410078810 A CN 201410078810A CN 103811785 A CN103811785 A CN 103811785A
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- 239000000446 fuel Substances 0.000 title claims abstract description 46
- 230000005611 electricity Effects 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000000813 microbial effect Effects 0.000 title claims abstract description 11
- 230000027756 respiratory electron transport chain Effects 0.000 title abstract 3
- ZTOKUMPYMPKCFX-CZNUEWPDSA-N (E)-17-[(2R,3R,4S,5S,6R)-6-(acetyloxymethyl)-3-[(2S,3R,4S,5S,6R)-6-(acetyloxymethyl)-3,4,5-trihydroxyoxan-2-yl]oxy-4,5-dihydroxyoxan-2-yl]oxyoctadec-9-enoic acid Chemical compound OC(=O)CCCCCCC/C=C/CCCCCCC(C)O[C@@H]1O[C@H](COC(C)=O)[C@@H](O)[C@H](O)[C@H]1O[C@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](COC(C)=O)O1 ZTOKUMPYMPKCFX-CZNUEWPDSA-N 0.000 claims abstract description 19
- 239000003876 biosurfactant Substances 0.000 claims abstract description 8
- 230000002906 microbiologic effect Effects 0.000 claims description 33
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 claims description 15
- 229910052799 carbon Inorganic materials 0.000 claims description 15
- 241000589517 Pseudomonas aeruginosa Species 0.000 claims description 9
- 239000004744 fabric Substances 0.000 claims description 5
- 239000002041 carbon nanotube Substances 0.000 claims description 4
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 4
- 239000006260 foam Substances 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000003054 catalyst Substances 0.000 claims description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 3
- 230000035699 permeability Effects 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 abstract description 2
- 239000008103 glucose Substances 0.000 abstract description 2
- 241000894006 Bacteria Species 0.000 abstract 1
- 210000004027 cell Anatomy 0.000 description 37
- 210000000170 cell membrane Anatomy 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000010287 polarization Effects 0.000 description 3
- 230000036647 reaction Effects 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 239000002028 Biomass Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- KVYRCBOUKXJXDK-UHFFFAOYSA-N 3,4-dimethylphenazine-1,2-diamine hydrochloride Chemical compound Cl.C1=CC=CC2=NC3=C(C)C(C)=C(N)C(N)=C3N=C21 KVYRCBOUKXJXDK-UHFFFAOYSA-N 0.000 description 1
- RBTBFTRPCNLSDE-UHFFFAOYSA-N 3,7-bis(dimethylamino)phenothiazin-5-ium Chemical compound C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 RBTBFTRPCNLSDE-UHFFFAOYSA-N 0.000 description 1
- GLLRIXZGBQOFLM-UHFFFAOYSA-N Xanthorin Natural products C1=C(C)C=C2C(=O)C3=C(O)C(OC)=CC(O)=C3C(=O)C2=C1O GLLRIXZGBQOFLM-UHFFFAOYSA-N 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000011081 inoculation Methods 0.000 description 1
- 229960000907 methylthioninium chloride Drugs 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04186—Arrangements for control of reactant parameters, e.g. pressure or concentration of liquid-charged or electrolyte-charged reactants
-
- 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
Abstract
The invention provides a method for improving the cell internal and external electron transfer efficiency and the electricity generating performance of a microbial fuel cell. Electricity generating pure bacteria are joined in the microbial fuel cell; fuels are organic substances such as glucose; a biosurfactant, namely sophorolipid, is added in the fuels, and is added according to the concentration of 20-80mg/L. The permeability of a cytomembrane can be intensified under the condition of small dosage without generating impact to the activity of cells; the resistance for electrons entering and going outside cells is also reduced; the electron transfer efficiency of the microbial fuel cell is improved; the battery power density is improved by about 3 times. The method has the advantages of capability of improving the electricity generating performance greatly, low in price and easiness in operation.
Description
Technical field
The invention belongs to bioenergy field, what relate to is a kind of method of improving microbiological fuel cell performance, specifically, is a kind of method that improves the interior exoelectron transmission efficiency of microbiological fuel cell cell and electricity generation performance.
Background technology
Global energy and environmental problem are increasingly serious, and development of new clean energy resource and regenerative resource have become global common recognition.Microbiological fuel cell (MFC) technology is that a kind of new refuse is processed and energy utilization patterns, can directly biomass conversion be become to electric energy, has the following advantages: 1, mild condition, operate simple and easyly, and do not need particular surroundings; The abandoned biomass such as 2, substrate is extensive, the sewage that environmental microorganism can be degraded can be served as the anode substrate of MFC; 3, clean energy resource, is converted into small-molecule substance by the organic substance of difficult degradation, does not produce other environmentally harmful materials.MFC electricity generation process may be summarized to be substantially: 1, the organic substance of anode is under the catalytic action of electrogenesis microbe, and oxidation produces electronics and proton; 2, the electronics producing passes out in electrogenesis extracellular microbial, arrives the anode of battery; 3, electronics is passed to negative electrode through battery external circuit; 4, electronics and proton and oxidant (as oxygen) water generation reaction.
But the development of microbiological fuel cell still restricts at present in its lower electricity generation performance, wherein a topmost bottleneck is the inside and outside efficiency of electron shuttle electrogenesis microbial cell in MFC.Up to the present research shows, electron transport route has three kinds: utilize nm-class conducting wire to carry out electronics transmission; Utilize epicyte pigment C to carry out electronics transmission; Utilize electron medium to carry out electronics transmission.Inside and outside electron shuttle cell, be mainly wherein that electron medium that produce take cell Inner source or external source interpolation is as carrier, the mediator that external source is added has dimethyl diaminophenazine chloride, methylene blue etc., but correlative study shows, although the interpolation of external source electron medium has improved the electricity generation performance of battery significantly, but the electron medium that external source is added has bio-toxicity and cost is higher, therefore the electron medium that we produce from Inner source, in galvanic anode liquid, add the surfactant-sophorolipid of bio-compatibility, electrogenesis microbe is under the effect of sophorolipid, permeability of cell membrane increases, reduce electron medium and transmit resistance, strengthen electron medium that Inner source the produces inside and outside speed of cell of shuttling back and forth.
Summary of the invention
The object of the present invention is to provide a kind of economically feasible, the process of can strengthening electronic transmitting from anode in extracellular microbial, improves the power output of microbiological fuel cell, improves the method for exoelectron transmission efficiency and electricity generation performance in microbiological fuel cell cell.
For achieving the above object, the technical solution adopted in the present invention is as follows:
Ratio according to 20--80mg/L in the fuel of microbiological fuel cell adds biosurfactant.
Described biosurfactant is selected sophorolipid, and the adding proportion of sophorolipid is 30-50mg/L.
The electrogenesis microbe of described microbiological fuel cell is pseudomonas aeruginosa.
Described microbiological fuel cell is the microbiological fuel cell being made up of body, anode, negative electrode, described anode is the one in carbon paper, carbon felt, carbon cloth, carbon nano-tube, tabular graphite or foam metal, and described negative electrode is the one in carbon paper, carbon felt, carbon cloth, carbon nano-tube, tabular graphite, active carbon, foam metal or gas electrode.
In described negative electrode, contain Pt/C catalyst.
Described container is single chamber or the double-chamber microbiological fuel cell container of any shape.
The present invention adds the biosurfactant of appropriate (20-80mg/L) as sophorolipid in the fuel of battery, and this class material can increase the permeability of microbial cell film low dose of in the situation that, and on the activity of cell without impact.Can reduce like this electron medium and transmit resistance, make the electron medium cell membrane that shuttles back and forth fast, improve the transfer rate of electronics, increase MFC electricity generation performance.In the time that the biosurfactant adding is selected sophorolipid, sophorolipid is 30-50mg/L, and the peak power output of microbiological fuel cell improves approximately 3 times, and the permeability of cell membrane of pseudomonas aeruginosa is significantly increased simultaneously.
Beneficial effect:
The present invention is applicable to the raising of the electricity generation performance of the microbiological fuel cell of the various configurations such as single chamber, two chambers.
The present invention realizes the electron medium cell membrane that shuttles back and forth fast by increasing the permeability of cell membrane, improves a kind of method of microbiological fuel cell power output.
The biosurfactant that the present invention adds improves compared with the method for electronics transfer rate as sophorolipid and external source add electron medium, has that power output is high, cheap, bio-compatibility is high, is easy to the advantage that realizes.
Accompanying drawing explanation
Fig. 1 is the electrogenesis principle schematic of microbiological fuel cell of the present invention, and wherein 1 is air inlet, sample holes, and 2 for giving vent to anger, thief hole, 3 is electrogenesis microbe, and 4 is galvanic anode, and 5 is cell reaction device device chamber, and 6 is cell cathode;
Fig. 2 is polarization and the power density curve of microbiological fuel cell of the present invention;
Fig. 3 is that the present invention adds after sophorolipid, the sign of pseudomonas aeruginosa permeability of cell membrane.
Embodiment
Below by specific embodiment, technical solutions according to the invention are further described in detail:
The present invention built a square reactor be single chamber without film air cathode microbial fuel cell, in conjunction with Fig. 1, battery of the present invention composition comprises and reactor device chamber 5 battery electrogenesis microbe 3 added to 5, negative electrode 6 and anode 4 are placed in respectively the both sides of device chamber.Anode material adopts carbon cloth, and negative electrode adopts the air cathode that contains Pt/C catalyst, and two die openings are 2-3cm.Reactor upper end has 2, two mouthfuls of sample holes 1 and thief holes to have sealing plug, and two interpolars connect by wire, and with external circuit load composition closed circuit, loading range is 1～10K Ω, the voltage of battery is by universal instrument timing acquiring record.Cell reaction of the present invention chamber is anaerobic environment.
Embodiment 1:
Inoculation pseudomonas aeruginosa liquid in cell reaction device anode chamber (electrode distance 3cm), carry out the cultivation of battery with the glucose nutrient solution that contains 40mg/L sophorolipid, below voltage is down to 20mV time, change fresh anode fuel, so carry out the circular flow in multiple cycles; In the time that battery of the present invention has enough substrates tool in stable electrogenesis state, change external load electricity (1～10K Ω), recording voltage after stable, calculate current density and the power density of battery, and draw the polarization curve and the power density curve that obtain microbiological fuel cell, it the results are shown in Figure 2.From the matching of the polarization curve range of linearity, the apparent internal resistance of the microbiological fuel cell that contains 40mg/L sophorolipid reduces half than the Apparent Internal Resistance in Microbial Fuel Cell that does not add sophorolipid.Rated output density is known, and the peak power output density that contains the microbiological fuel cell of 40mg/L sophorolipid is 15.8mW/m
2, and be not 6.2mW/m containing the microbiological fuel cell peak power output density of sophorolipid
2.Reach a conclusion accordingly: the interpolation of sophorolipid has reduced the resistance to mass tranfer of electronics, increase electronics transfer rate, the internal resistance of cell reduces about half, improves approximately 3 times of power of battery density.
Embodiment 2:
Electrogenesis bacterium-the pseudomonas aeruginosa of processing through biosurfactant-sophorolipid in the present invention, untreated pseudomonas aeruginosa and related reagent, use respectively sepectrophotofluorometer cell membrane permeability to characterize, the excitation wavelength of sepectrophotofluorometer is 355nm, and test result is shown in Fig. 3.As shown in Figure 3, pseudomonas aeruginosa is under the existence of sophorolipid, permeability of cell membrane improves a lot, clear and definite checking the interpolation of sophorolipid increased the permeability of cell membrane of pseudomonas aeruginosa, thereby increase the shuttle back and forth speed of cell of electron medium, also improve exoelectron transmission efficiency in microbiological fuel cell cell, and then improve electricity generation performance.
More than research shows, in this raising microbiological fuel cell cell provided by the invention, the new method of exoelectron transmission efficiency and electricity generation performance can significantly improve the electricity generation performance of battery, improve compared with the method for electronics transmission efficiency with adding external source electron medium, have that power output is high, cheap, bio-compatibility is high, be easy to the advantage that realizes.
Claims (6)
1. a method that improves the interior exoelectron transmission efficiency of microbiological fuel cell cell and electricity generation performance, is characterized in that: the ratio according to 20-80mg/L in the fuel of microbiological fuel cell adds biosurfactant.
2. the method for exoelectron transmission efficiency and electricity generation performance in raising microbiological fuel cell cell according to claim 1, is characterized in that: described biosurfactant is selected sophorolipid, and sophorolipid adding proportion is 30-50mg/L.
3. the method for exoelectron transmission efficiency and electricity generation performance in raising microbiological fuel cell cell according to claim 2, is characterized in that: the electrogenesis microbe of described microbiological fuel cell is pseudomonas aeruginosa.
4. the method for exoelectron transmission efficiency and electricity generation performance in raising microbiological fuel cell cell according to claim 3, it is characterized in that: described microbiological fuel cell is the microbiological fuel cell being made up of body, anode, negative electrode, described anode is the one in carbon paper, carbon felt, carbon cloth, carbon nano-tube, tabular graphite or foam metal, and described negative electrode is the one in carbon paper, carbon felt, carbon cloth, carbon nano-tube, tabular graphite, active carbon, foam metal or gas electrode.
5. the method for exoelectron transmission efficiency and electricity generation performance in raising microbiological fuel cell cell according to claim 4, is characterized in that: in described negative electrode, contain Pt/C catalyst.
6. the method for exoelectron transmission efficiency and electricity generation performance in raising microbiological fuel cell cell according to claim 5, is characterized in that: two chambers that described body is any shape or single-chamber microbial fuel cell container.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410078810.9A CN103811785A (en) | 2014-03-06 | 2014-03-06 | Method for improving cell internal and external electron transfer efficiency and electricity generating performance of microbial fuel cell |
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| CN201410078810.9A CN103811785A (en) | 2014-03-06 | 2014-03-06 | Method for improving cell internal and external electron transfer efficiency and electricity generating performance of microbial fuel cell |
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| CN103811785A true CN103811785A (en) | 2014-05-21 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104733763A (en) * | 2015-03-09 | 2015-06-24 | 邓振山 | Self-power-generation thin film carrier shell used for building surface |
| WO2016108355A1 (en) * | 2014-12-30 | 2016-07-07 | 재단법인대구경북과학기술원 | Photo/bio-hybrid microbial fuel cell |
| CN110635158A (en) * | 2018-06-21 | 2019-12-31 | 北京化工大学 | Single-chamber cylindrical air cathode MFC |
| CN114958684A (en) * | 2022-06-22 | 2022-08-30 | 上海龙殷生物科技有限公司 | Method for improving competent cell transformation rate |
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| US20090111002A1 (en) * | 2007-10-26 | 2009-04-30 | Matthew Lambrech | Electrode assembly and method of making same |
| CN102211842A (en) * | 2011-04-19 | 2011-10-12 | 湖南大学 | Method for joint treatment of residual sludge by surfactant and enzyme |
-
2014
- 2014-03-06 CN CN201410078810.9A patent/CN103811785A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090111002A1 (en) * | 2007-10-26 | 2009-04-30 | Matthew Lambrech | Electrode assembly and method of making same |
| CN102211842A (en) * | 2011-04-19 | 2011-10-12 | 湖南大学 | Method for joint treatment of residual sludge by surfactant and enzyme |
Non-Patent Citations (1)
| Title |
|---|
| 彭海利等: "生物表面活性剂强化剩余污泥微生物燃料电池产电特性研究", 《环境科学》, vol. 35, no. 1, 31 January 2014 (2014-01-31) * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016108355A1 (en) * | 2014-12-30 | 2016-07-07 | 재단법인대구경북과학기술원 | Photo/bio-hybrid microbial fuel cell |
| CN104733763A (en) * | 2015-03-09 | 2015-06-24 | 邓振山 | Self-power-generation thin film carrier shell used for building surface |
| CN110635158A (en) * | 2018-06-21 | 2019-12-31 | 北京化工大学 | Single-chamber cylindrical air cathode MFC |
| CN114958684A (en) * | 2022-06-22 | 2022-08-30 | 上海龙殷生物科技有限公司 | Method for improving competent cell transformation rate |
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Application publication date: 20140521 |