CN101908633A - Plant-soil microbial fuel cell system - Google Patents
Plant-soil microbial fuel cell system Download PDFInfo
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- CN101908633A CN101908633A CN201010221820.5A CN201010221820A CN101908633A CN 101908633 A CN101908633 A CN 101908633A CN 201010221820 A CN201010221820 A CN 201010221820A CN 101908633 A CN101908633 A CN 101908633A
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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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- Fuel Cell (AREA)
Abstract
The invention discloses a plant-soil microbial fuel cell system, which is low in cost, practical, effective and environment-friendly and combines electricity-generating microbes and plant photosynthesis. The system comprises an anode, a cathode, an external circuit connecting the anode and the cathode and plants, wherein the anode is arranged in soil around roots of the plants; and the cathode is arranged on the surface of the soil. In the system, organic matters generated by the plant photosynthesis and released to the roots serve as a fuel so that the problem of low electricity-generating efficiency caused by inhibiting effect of the organic matters on the electricity-generating microbes when the electricity-generating microbes take the organic matters in sewage as the fuel is solved. At the same time, the system takes plants as a provider of fuel, so that the recycling of energy of carbon fixation through the plants, secretion of the organic matters and energy generation is realized and green supply of the fuel is realized. Therefore, the system realizes both energy supply and environmental protection by organically combining the plants and the electricity-generating microbes in the soil.
Description
Technical field:
The invention belongs to the energy and restoration of the ecosystem field, be specifically related to a kind ofly by being the producer with the photosynthesis of plants, the electrogenesis microbe in the soil is plant-edaphon fuel cell system of consumer.
Background technology:
In order to satisfy the demand of the present social development of China, energy demand, environmental protection etc., various green electric power supply resources are arisen at the historic moment.Green electric power supply is meant the electric power of being produced by regenerative resource (non-fossil energies such as wind energy, solar energy, oceanic energy, geothermal energy, biomass energy, small power station), producing electric power because of it is to utilize specific generating equipment, and the electric power of Chan Shenging or not in power generation process or seldom produces environmentally harmful excreta (as CO, CO in this way
2Deng), and do not need consumption of fossil fuels, and saved the Limited resources deposit, help sustainable development (Xiong Ying, 2008 of environmental protection and national economy; The flood peak, 2008).But these green electric power supplies all have certain restriction for resource, require local water resource abundant (Lu Shibao, 2009) as small power station; Wind power generation is applicable to the area that wind energy resourceses such as Xinjiang of China, the Inner Mongol are abundant; Geothermal energy resource is then concentrated and is distributed on southern Tibet, western Sichuan, west area, Yunnan (Gong Yulie, 2008); Biomass power generation then needs the biomass deposit that enriches, and considers that from its economy the electrogenesis scale is had certain requirement (Wu creates it, 2006).
Based on this, application demand has appearred in the novel power supply supply mode.As far back as 1910, the Britain botanist just placed platinum in the colibacillary nutrient solution as electrode, had successfully produced first bacterial cell in the world.1984, U.S. scientist designed a kind of bacterial cell that is used for spaceship, and the active matter of its electrode is from astronaut's the urine and the bacterium that lives. but bacterial cell generating efficiency at that time is lower.To late 1980s. the bacterium generating makes important progress, the Englishize scholar allows bacterium decompose molecule in battery pack, produce electric energy to discharge the motion of electronics and anode, they add some aromatic compound such as dyestuff as dilution in liquid glucose, improve the ability of biosystem conveying electronic, but during the bacterium generating, also need in battery, constantly to inflate, and stir the mixture of inoculum and oxide.In theory, utilize this bacterial cell, every 100g sugar can obtain 1352930 coulombs electric energy, and its efficient can reach 40%, far above the efficient of the battery of present use, and also has 10 times potentiality to dig.Sugaredly just can obtain the 2A electric current as long as constantly insert in the battery, and the several months long can be continued: utilize the bacterium electricity generating principle, people are conceiving and are setting up the bacterium power station, such as, based on the inoculum in the square cube container of 10m, can set up the bacterium power station of a 1000kW, per hour consumption sugar amount is 200kg, though cost of electricity-generating is higher, this is a kind of environmentally safe " green " power station (Wu Zulin, 2005).But reality is present microbiological fuel cell is that fuel obtains maximum 1kW/m with single carbon source sodium acetate
3Power output, and with its power outputs lower (Li Lianhua, 2009) of complex compound such as beer waste water etc.And the pilot experiment that Rabaey (2008) etc. carry out is that to have studied volume be 1m to fuel with the beer waste water
3The ruuning situation of microbiological fuel cell, exist problems such as corrosion and electrogenesis efficient are low during the course, and point out that in second domestic microbiological fuel cell meeting there is bigger problem in microbiological fuel cell as the method for waste water control, but can be used for producing hydrogen.
Plant carries out photosynthesis, fixation of C O by chlorophyll
2Synthetic carbohydrate.According to kind and the environmental condition of plant, nearly 60% the C that is fixed can be input to root.Studies show that. 30%～40% root of soil organism sum from root secretion and death.Mainly contain: (1) carbohydrate, organic acid etc.; (2) polymeric carbohydrate and enzyme etc.; (3) Si Wang cellular material; (4) gaseous matter such as ethene.Gransee (2001) etc. utilizes quartz sand to cultivate corn and studies its water-soluble root secretion composition, find that hydrocarbon accounts for 64%, amino acid and amino salt account for 22%, organic acid is 14%. to learn in independent compound analysis, hydrocarbon mainly is a glucose, fructose and sucrose, citric acid and butanedioic acid account for organic acid 80%, mainly contain glutamic acid in the amino acid, aspartic acid and serine .Paynel discoveries such as (2001), in clover and rye grass amino acid, find in the maximum .Aulakh research rice root secretion such as (2001) of serine and amion acetic acid ratio, malic acid concentration is the highest in organic acid, secondly is tartaric acid, butanedioic acid citric acid and lactic acid.
Summary of the invention:
The plant that utilizes electrogenesis microbe and the photosynthesis of plant coupling-edaphon fuel cell system that the purpose of this invention is to provide a kind of with low cost, practicability and effectiveness, environmental protection.
Plant utilization solar energy carries out photosynthesis, absorbs CO
2, a part is wherein utilized by plant self, also has about 60% to be transferred to plant root by plant and to form the root compound.The present invention utilizes electrogenesis microbe in the soil as catalyst, and above-mentioned root compound oxidation is decomposed into CO
2, and in this process, generating electronics and proton, electronics passes to negative electrode through external circuit again by the anode electrode of anode, proton passes to negative electrode through soil, and on this basis, proton and oxygen generate water, form the loop, produce electric current, thereby realized purpose of the present invention.
Plant of the present invention-edaphon fuel cell system, comprise anode electrode, cathode electrode and the external circuit that connects anode electrode and cathode electrode, it is characterized in that, also comprise plant, described anode electrode places in the plant root soil on every side, and described cathode electrode places soil surface.
Described plant is preferably energy grass.
Preferably, described cathode electrode lies against soil surface, the perpendicular placement of anode electrode.
The present invention utilize the plant absorbing justacrine to the organic matter of plant root as raw material, utilize the interior electrogenesis microbe of soil as catalyst, these organic matter decomposition of catalysis are carbon dioxide, and in this process, produce electronics and proton, electronics passes to cathode electrode by anode electrode through external circuit, proton is delivered to the cathode electrode of soil surface through soil, need not proton and pass through film, and cathode electrode with airborne oxygen as electron acceptor, reduced cost, proton and oxygen generate water, form the loop, thereby produce electric current.The present invention compares with conventional microbiological fuel cell, have following beneficial effect: the present invention is a fuel with photosynthesis of plant production and the organic matter that is discharged into root mainly, when having avoided the electrogenesis microbe to be fuel with organic matter in the sewage, organic inhibitory action to the electrogenesis microbe, thus the inefficient problem of electrogenesis caused.The present invention simultaneously realizes the energy recycling of the solid carbon of plant-secretion organic matter-electrogenesis with the plant supplier that acts as a fuel, and has realized the green supply of fuel.Therefore the present invention is by the organic coupling with electrogenesis microbe in plant and the soil; realized the doulbe-sides' victory of energy resource supply and environmental protection; when particularly selecting energy grass as the supplier of electrogenesis microbiological oxidation raw material; can when not influencing energy grass utilization results of energy, realize the recovery of electric energy, more can make using energy source and environmental protection obtain effective combination.
Description of drawings:
Fig. 1 is the structural representation of plant of the present invention-edaphon fuel cell system;
Fig. 2 is the anode electrode in the present embodiment 1 and the placement location schematic diagram of cathode electrode;
Description of reference numerals: 1, anode electrode; 2, cathode electrode; 3, soil surface.
Embodiment:
Below be to further specify to of the present invention, rather than limitation of the present invention.
Embodiment 1:
As depicted in figs. 1 and 2, the plant of present embodiment-edaphon fuel cell system makes up (as Chinese pennisetum) based on the energy grass of cultivating, in all side soil of this energy grass roots portion, be provided with anode electrode 1 (ANODE), on near the soil surface the energy grass 3, kept flat cathode electrode 2 (CATHODE), this cathode electrode 2 is exposed in the air, as shown in Figure 2, described anode electrode 1 (ANODE) is perpendicular to cathode electrode 2 (CATHODE).Anode electrode 1 (ANODE) is connected by external circuit with cathode electrode 2 (CATHODE), can be connected to load on the external circuit.After building, connect universal instrument, move this plant-edaphon fuel cell system, on external circuit, have voltage after testing at external circuit.
The plant of present embodiment-edaphon operation of fuel cell system principle is such, the energy grass of cultivation utilizes solar energy, absorbing carbon dioxide is emitted oxygen, synthesis of organic substance matter, wherein a part of organic substance is discharged into plant root, microbe in the soil of plant root is decomposed these organic substances, produce carbon dioxide, also produced electronics and proton in this process, electronics is through anode, arrive negative electrode by external circuit, and proton arrives negative electrode through soil, and as electron acceptor, proton and oxygen generate water to negative electrode with oxygen, form the loop therefrom, produce electric current.
Claims (3)
1. plant-edaphon fuel cell system, comprise anode electrode, cathode electrode and the external circuit that connects anode electrode and cathode electrode, it is characterized in that, also comprise plant, described anode electrode places in the plant root soil on every side, and described cathode electrode places soil surface.
2. plant according to claim 1-edaphon fuel cell system is characterized in that, described plant is an energy grass.
3. plant according to claim 1 and 2-edaphon fuel cell system is characterized in that described cathode electrode lies against soil surface, the perpendicular placement of anode electrode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010221820.5A CN101908633B (en) | 2010-07-08 | 2010-07-08 | Plant-soil microbial fuel cell system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010221820.5A CN101908633B (en) | 2010-07-08 | 2010-07-08 | Plant-soil microbial fuel cell system |
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| CN101908633A true CN101908633A (en) | 2010-12-08 |
| CN101908633B CN101908633B (en) | 2012-07-18 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102263279A (en) * | 2011-07-06 | 2011-11-30 | 武汉理工大学 | Microbial fuel cell device with artificial wetland aquatic plant electrodes |
| CN102386431A (en) * | 2011-10-24 | 2012-03-21 | 南开大学 | Soil microbial fuel cell and method for remediating petroleum hydrocarbon polluted soil |
| CN104241669A (en) * | 2014-09-18 | 2014-12-24 | 张笑裴 | Soil microbial fuel cell taking graphite rods as electrodes and application of soil microbial fuel cell |
| CN105993905A (en) * | 2016-07-25 | 2016-10-12 | 中国计量大学 | Modularized roof-greening generating device |
| CN107058102A (en) * | 2017-02-15 | 2017-08-18 | 郭翀 | Plant leaf green grape cell sugar fuel cell combined generating system |
| CN107431230A (en) * | 2015-02-12 | 2017-12-01 | Tsnt全球有限公司 | Using the food refuse installation for fermenting and animal manure Fertilizer Transformed device of edaphon, it is suitable for its biological field generation device, is suitable for its microorganism battery and is suitable for its microorganism capacitor |
| CN107894391A (en) * | 2017-11-13 | 2018-04-10 | 南开大学 | A kind of method of microorganism electrochemical sensor quick detection acid rain to rice health effect |
| CN108365245A (en) * | 2018-02-09 | 2018-08-03 | 广东省农业科学院环境园艺研究所 | A method of for building high-efficiency plant-microbiological fuel cell |
| CN109220324A (en) * | 2018-09-30 | 2019-01-18 | 上海园林工程设计有限公司 | A kind of transparent charging flowerpot of graphene |
| CN109292996A (en) * | 2018-11-27 | 2019-02-01 | 中国计量大学 | A kind of wetland type plant microbiological fuel cell |
| CN110492790A (en) * | 2019-07-24 | 2019-11-22 | 盐城工学院 | A kind of negative ion generating device of plant generated energy supply |
| US10921003B2 (en) | 2018-10-19 | 2021-02-16 | National Tsing Hua University | Self-power air refresher system |
| CN114279388A (en) * | 2021-12-27 | 2022-04-05 | 东北林业大学 | Living standing tree growth ring data acquisition system supported by plant electric energy |
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| CN1364146A (en) * | 1999-07-07 | 2002-08-14 | 韩国科学技术研究院 | Biofuel cell using wastewater and active sludge for wastewater treatment |
| CN101483251A (en) * | 2009-02-02 | 2009-07-15 | 汕头大学 | Microbiological fuel cell for wastewater treatment |
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2010
- 2010-07-08 CN CN201010221820.5A patent/CN101908633B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1364146A (en) * | 1999-07-07 | 2002-08-14 | 韩国科学技术研究院 | Biofuel cell using wastewater and active sludge for wastewater treatment |
| CN101483251A (en) * | 2009-02-02 | 2009-07-15 | 汕头大学 | Microbiological fuel cell for wastewater treatment |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102263279A (en) * | 2011-07-06 | 2011-11-30 | 武汉理工大学 | Microbial fuel cell device with artificial wetland aquatic plant electrodes |
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