CN103367784A - Single-chamber no-film air-cathode microbiological fuel cell device - Google Patents
Single-chamber no-film air-cathode microbiological fuel cell device Download PDFInfo
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- CN103367784A CN103367784A CN2013103195986A CN201310319598A CN103367784A CN 103367784 A CN103367784 A CN 103367784A CN 2013103195986 A CN2013103195986 A CN 2013103195986A CN 201310319598 A CN201310319598 A CN 201310319598A CN 103367784 A CN103367784 A CN 103367784A
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- air cathode
- carbon cloth
- 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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention discloses a single-chamber no-film air-cathode microbiological fuel cell device. The device comprises a fermentation cylinder, a graphite carbon anode, a platinum-loaded carbon cloth air cathode, wires and a resistance box. A sampling opening is arranged in the cover in the top part of the fermentation cylinder. The sampling opening is used to collect samples to test to monitor the process of reactions and used to discharge the gas generated during the reaction process. The graphite carbon anode is arranged in the inner cavity of the fermentation cylinder, and the wall surface of the fermentation cylinder is provided with a hole, which is used to fix the platinum-loaded carbon cloth air cathode. One side of the platinum-loaded carbon cloth air cathode is arranged in the inner cavity of the fermentation cylinder to contact with the substrate of the microbiological fuel cell, the other side of the platinum-loaded carbon cloth air cathode is exposed in the air, oxygen in the air is utilized as the electronic acceptor, and the graphite carbon anode and the platinum-loaded carbon cloth air cathode form a circuit through a series connection with the resistance box. The single-chamber no-film air-cathode microbiological fuel cell device has the advantages of small reactor volume, simple production, low production cost, short operation period, simple installation and maintenance, good pollutant degradation effect and relatively high electric power.
Description
Technical field
The invention belongs to environmental protection and technical field of new energies, particularly a kind of single chamber is without membranous wall formula air cathode microbial fuel cell unit.
Background technology
Microbiological fuel cell; be called for short MFCs; new things; can directly change into electric energy to the chemical energy that substrate contains; the theory that meets cleaner production; this technology has refuse to be processed and electric recoverable dual-use function, for the contradiction of handling well between environmental protection and energy-consuming, environment control and the economic development provides a new way.
Two chambers of traditional microbiological fuel cell, i.e. anode chamber, a cathode chamber.Its operation principle is: in the anode chamber, degradable organic substance generates proton, electronics and metabolite under the effect of microbe, and electronics is transferred to electrode surface by carrier; Electronics arrives negative electrode by external circuit, and proton is moved to negative electrode by solution; At cathode surface, the proton that oxidation state material and anode pass over and electronics are combined reduction reaction are occured.
At present, microbiological fuel cell is widely used in actual life, such as waste water treatment, produce hydrogen, biological prosthetic, biology sensor etc., and has made significant headway.Yet still there are a lot of problems in microbiological fuel cell, low such as power density, material involves great expense, type of reactor uncertain etc., this has just limited further developing of microbiological fuel cell, realize that microbiological fuel cell also has very remote distance in the large-scale application of Practical Project.
The factor that affects the electricity generation performance of microbiological fuel cell has a lot, and electrode material is arranged, reactor configuration, reactant species, operating condition etc.In order further to improve the electricity generation performance of microbiological fuel cell, reduce the cost of manufacture of reactor, optimize the reaction unit service conditions and be very important.
Summary of the invention
The shortcoming such as the objective of the invention is to overcome that traditional double chamber microbiological fuel cell volume is large, complicated operation, cost height and power density are low provides a kind of single chamber without membranous wall formula air cathode microbial fuel cell unit.
Thinking of the present invention: the main body of fermentation tank as reaction unit, insert in organic glass jar as anode by direct use graphite carbon rod, the carbon cloth negative electrode directly is fixed on the wall of fermentation tank, directly remove cathode chamber, one side of carbon cloth is contacted with substrate, an other side is exposed in the air, utilize airborne oxygen as electron acceptor, do not adopt the high selectivity of price to see through film, reach the simplification reaction unit, reduce the purpose of reactor cost of manufacture, then by optimizing the operational factor of cell apparatus, such as annode area, conductor material, reactant concentration, ionic additive concentration etc. are to reach the purpose that improves the reaction unit electricity generation performance.
The present invention is achieved in that a kind of single chamber without membranous wall formula air cathode microbial fuel cell unit, comprises fermentation tank, graphite carbon rod anode, carries platinum carbon cloth air cathode, wire and resistance box; On the lid at fermentation tank top sample tap is set, is used for sampling and testing and also is used for the gas that the discharging course of reaction produces with the degree that monitoring reaction carries out; The graphite carbon rod anode is arranged in the fermentation tank inner chamber, wall at fermentation tank arranges a hole, be used for the fixing platinum carbon cloth air cathode that carries, a side that carries platinum carbon cloth air cathode contacts with the substrate of microbiological fuel cell in the fermentation tank inner chamber, opposite side is exposed in the air, utilize airborne oxygen as electron acceptor, consist of the loop by wire series resistance case between graphite carbon rod anode and year platinum carbon cloth air cathode.
Described fermentation tank adopts polymethyl methacrylate to make, and is the place that reactant reacts.
Described graphite carbon rod anode is commercially available, is the main place of microbial adhesion and realizes the electronics transmission.
Platinum carbon cloth air cathode was the place of electron acceptor generation reduction reaction in described year.
By the parameter optimization experiment, the optimized operation parameter of determining apparatus of the present invention is: under 30 ℃ of constant temperature, graphite carbon rod anode 4 areas are got 31.4 square centimeters, and negative and positive the two poles of the earth distance is 0.5 centimetre, and wire 5 adopts copper cash, and resistance box 6 resistances are 1000 Ω.
The advantage of apparatus of the present invention: device volume is little, make simple, whole device need not to adopt the high selectivity of price to see through film, directly utilize airborne oxygen as electron acceptor, greatly reduced manufacturing cost, the cycle of operation is shorter, and loading and unloading, maintenance are simply, contaminant degradation is effective, and electrogenesis power is higher.
Description of drawings
Fig. 1 is the structural representation of apparatus of the present invention.
Mark among the figure: 1-fermentation tank; The 2-lid; The 3-sample tap; 4-graphite carbon rod anode; The 5-wire; The 6-resistance box; 7-carries platinum carbon cloth air cathode.
Embodiment
Embodiment:
The excess sludge that present embodiment produces take sewage treatment plant carries out anaerobic fermentation and electrogenesis as reactant.
As shown in Figure 1, a kind of single chamber comprises fermentation tank 1, graphite carbon rod anode 4, carries platinum carbon cloth air cathode 7, wire 5 and resistance box 6 without membranous wall formula air cathode microbial fuel cell unit; On the lid 2 at fermentation tank 1 top sample tap 3 is set, is used for sampling and testing and also is used for the gas that the discharging course of reaction produces with the degree that monitoring reaction carries out; Graphite carbon rod anode 4 is arranged in fermentation tank 1 inner chamber, wall at fermentation tank 1 arranges a hole, be used for the fixing platinum carbon cloth air cathode 7 that carries, a side that carries platinum carbon cloth air cathode 7 contacts with the substrate of microbiological fuel cell in fermentation tank 1 inner chamber, an other side is exposed in the air, utilize airborne oxygen as electron acceptor, consist of loops by wire 5 series resistance casees 6 between graphite carbon rod anode 4 and year platinum carbon cloth air cathode 7.
Described fermentation tank 1 is the polymethyl methacrylate tank, and its internal diameter is 7 centimetres, 20 centimetres of height, and available space is 750 milliliters, this fermentation tank 1 is the place that reactant reacts.
Described graphite carbon rod anode 4 is that commercially available diameter is 1 centimetre graphite carbon rod, and this electrode is the main place of microbial adhesion and realizes the electronics transmission.
Described year platinum carbon cloth air cathode 7 is to contain air diffusion layer and be loaded with 0.35 milligram of/square centimeter platinum catalyst and diameter is 4 centimetres circular carbon cloth electrode, and this electrode is the place of electron acceptor generation reduction reaction.
The workflow of present embodiment device is:
At first the circuit of present embodiment device is connected, be placed in the constant incubator, then inject 720 milliliters reactant liquor in the fermentation tank 1 as the substrate of microbiological fuel cell, cover the lid 2 of fermentation tank 1, allow fermentation tank 1 in constant incubator, leave standstill reaction, until finish reaction time.
Described reactant liquor is that concentration is that the mud of 21000 mg/litre adds 200 mMs NaCl ion concentration agent.
The operational factor that the present embodiment device is set is: under 30 ℃ of constant temperature, graphite carbon rod anode 4 areas are got 31.4 square centimeters, and negative and positive the two poles of the earth distance is 0.5 centimetre, and wire 5 adopts copper cash, and resistance box 6 resistances are 1000 Ω.
Under above-mentioned operational factor, the peak power output density that the present embodiment device produces is 301.3 mW/m
2, internal resistance is 92.5 Ω, and coulombic efficiency is that 15.7%, COD clearance is 17.6%, and sludge volume has reduced 31.25%, compares with the microbiological fuel cell take mud as substrate of domestic research, and electricity generation performance has obtained further raising.
Claims (2)
1. a single chamber comprises fermentation tank (1), graphite carbon rod anode (4), carries platinum carbon cloth air cathode (7), wire (5) and resistance box (6) without membranous wall formula air cathode microbial fuel cell unit; On the lid (2) at fermentation tank (1) top sample tap (3) is set, is used for sampling and testing and also is used for the gas that the discharging course of reaction produces with the degree that monitoring reaction carries out; Graphite carbon rod anode (4) is arranged in fermentation tank (1) inner chamber, wall at fermentation tank (1) arranges a hole, be used for the fixing platinum carbon cloth air cathode (7) that carries, a side that carries platinum carbon cloth air cathode (7) contacts with the substrate of microbiological fuel cell in fermentation tank (1) inner chamber, opposite side is exposed in the air, utilize airborne oxygen as electron acceptor, consist of the loop by wire (5) series resistance case (6) between graphite carbon rod anode (4) and year platinum carbon cloth air cathode (7);
Described fermentation tank (1) adopts polymethyl methacrylate to make, and is the place that reactant reacts;
Described graphite carbon rod anode (4) is commercially available, is the main place of microbial adhesion and realizes the electronics transmission;
Described year platinum carbon cloth air cathode (7) be the place of electron acceptor generation reduction reaction.
2. single chamber according to claim 1 is without membranous wall formula air cathode microbial fuel cell unit, it is characterized in that: under 30 ℃ of constant temperature, graphite carbon rod anode (4) area is got 31.4 square centimeters, distance is 0.5 centimetre between graphite carbon rod anode (4) and year platinum carbon cloth air cathode (7), wire (5) adopts copper cash, and resistance box (6) resistance is 1000 Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013103195986A CN103367784A (en) | 2013-07-28 | 2013-07-28 | Single-chamber no-film air-cathode microbiological fuel cell device |
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| CN2013103195986A CN103367784A (en) | 2013-07-28 | 2013-07-28 | Single-chamber no-film air-cathode microbiological fuel cell device |
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| CN103367784A true CN103367784A (en) | 2013-10-23 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104817169A (en) * | 2015-05-11 | 2015-08-05 | 北京化工大学 | Microbial fuel cell (MFC) coupling electrolysis device and process method for processing PPCPs |
| CN110518273A (en) * | 2019-08-30 | 2019-11-29 | 哈尔滨工业大学 | A kind of single-chamber microbial fuel cell and preparation method thereof for the research of electro-chemical activity bacterium group |
| CN113998773A (en) * | 2021-11-01 | 2022-02-01 | 中国农业科学院都市农业研究所 | Device and method for treating aquaculture sewage by using air cathode single-chamber microbial fuel cell |
| CN116121496A (en) * | 2022-12-27 | 2023-05-16 | 厦门振泰成科技有限公司 | Continuous processing equipment and method for magnetic field annealing of magnetic material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101483251A (en) * | 2009-02-02 | 2009-07-15 | 汕头大学 | Microbiological fuel cell for wastewater treatment |
| CN101859908A (en) * | 2010-06-21 | 2010-10-13 | 哈尔滨工程大学 | Microbial fuel cell and method for enhancing electricity generation performance of microbial fuel cell |
-
2013
- 2013-07-28 CN CN2013103195986A patent/CN103367784A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101483251A (en) * | 2009-02-02 | 2009-07-15 | 汕头大学 | Microbiological fuel cell for wastewater treatment |
| CN101859908A (en) * | 2010-06-21 | 2010-10-13 | 哈尔滨工程大学 | Microbial fuel cell and method for enhancing electricity generation performance of microbial fuel cell |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104817169A (en) * | 2015-05-11 | 2015-08-05 | 北京化工大学 | Microbial fuel cell (MFC) coupling electrolysis device and process method for processing PPCPs |
| CN110518273A (en) * | 2019-08-30 | 2019-11-29 | 哈尔滨工业大学 | A kind of single-chamber microbial fuel cell and preparation method thereof for the research of electro-chemical activity bacterium group |
| CN113998773A (en) * | 2021-11-01 | 2022-02-01 | 中国农业科学院都市农业研究所 | Device and method for treating aquaculture sewage by using air cathode single-chamber microbial fuel cell |
| CN116121496A (en) * | 2022-12-27 | 2023-05-16 | 厦门振泰成科技有限公司 | Continuous processing equipment and method for magnetic field annealing of magnetic material |
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Application publication date: 20131023 |