CN202164174U - Structure capable of realizing ecological treatment of sewage and microbiological fuel cell electricity generation - Google Patents
Structure capable of realizing ecological treatment of sewage and microbiological fuel cell electricity generation Download PDFInfo
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- CN202164174U CN202164174U CN2011202460800U CN201120246080U CN202164174U CN 202164174 U CN202164174 U CN 202164174U CN 2011202460800 U CN2011202460800 U CN 2011202460800U CN 201120246080 U CN201120246080 U CN 201120246080U CN 202164174 U CN202164174 U CN 202164174U
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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
- 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 relates to a structure capable of realizing the ecological treatment of sewage and microbiological fuel cell electricity generation. The structure comprises a main artificial wetland ecological engineering body and an MFC (microbial fuel cell) system, wherein the MFC system is composed of an external circuit of a part of an artificial wetland component; the main artificial wetland body comprises a coarse grit layer, a conductive filler layer, an insulating filler layer, a top-layer conductive material layer and wetland plant, the coarse grit layer is arranged at the bottom layer, the conductive filler layer is arranged in a lower anaerobic area, and the insulating filler layer is arranged between the lower conductive filler layer and the top-layer conductive material layer; the wetland plant is fixed in the insulating filler layer, and root systems of the wetland plant gradually penetrate through the lower conductive filler layer as the plant grows; the MFC system consists of an anode electrode, a cathode electrode and an external connecting wire, and the external connecting wire is used for connecting the cathode and the anode; the anode is composed of the lower conductive filler layer of the artificial wetland, and the cathode is composed of the top-layer conductive material layer of the artificial wetland; and a part of the top-layer conductive material layer is immersed in water, and a part of the top-layer conductive material layer is exposed in the air to compose an air cathode.
Description
Technical field
The utility model belongs to energy and environment engineering field, is specifically related to the microbiological fuel cell electrogenesis technology in a kind of WWT ecological engineering, relates in particular to microbiological fuel cell application in the output electric energy when artificial swamp is purified waste water.
Background technology
Microbiological fuel cell (MFC) is as a kind of new production capacity mode---and utilize mikrobe that organic matter is converted into electric energy and receives increasing research and attention.MFC utilizes enzyme or mikrobe as anode catalyst, and through the device of its metabolism with organism and renewable biomass oxidation generation electric energy, these fuel source make MFC than only utilizing the chemical fuel battery of pure chemistry reactive fuel more advanced.Research shows, the MFC simple small organic molecule of not only can degrading obtains electric energy, and the complicated larger molecular organics of also can degrading produces electric energy.People such as Logan are substrate with city's trade effluent of having stable political situation, and have realized the biological treatment and the saprobiont generating of waste water synchronously.Mohan etc. study the degraded and the electricity generation performance of pharmacy waste water, dyestuff, agrochemical synthetic chemistry waste water, and pollutant load is 1.404 kg COD/ (m
3D) time, peak voltage is 304 mV, and the contaminant degradation rate reaches 62.9%.Luo Haiping etc. are fuel with phenol, and under the loading condition, the phenol clearance reaches 90% approximately outside 1000 Ω, and maximum output voltage is 540mV.Therefore, it is feasible utilizing the MFC degradation of contaminant and producing electric energy, economical, also be continuable.The correlative study result of MFC shows that its performance mainly is subject to hardware, configuration, rather than microbic activity at present.So, the technical development of MFC research is mainly concentrated on the transmittance process that improves proton, electronics and the configuration and the configuration of reactor drum, as transforming reactor configuration, to form the strict anaerobic environment of anode; Increase the anodic specific surface area as much as possible, make its attract electrons amboceptor more easily, thereby improve electrochemical activity; The controlling reactor cathode and anode spacing is with aspects such as the reduction internal resistances of cell.
Artificial swamp (constructed wetland) is from ecological principle; The natural imitation ecosystem; The staggered band in land and water coenosis succession system particularly; Transform and strengthen according to the purpose of WWT, and utilize a kind of novel sewage purification system that the hydrobiont variety is carried out group's space and time optimization combination under the different natural condition.It is made up of artificial substratum and above that plant of growth, contains the unique ecosystem of soil (or other matrix), plant, mikrobe through artificial constructed formation, and multipath removal pollutent purifies water.The artificial swamp treatment technology has the easy characteristics of low cost, less energy-consumption and maintenance management, but its processing speed is slow relatively, and the processing efficiency of Persistent organic pollutants is had much room for improvement.
To the problems referred to above, the utility model organically blends to above-mentioned two kinds of technology.What artificial swamp had has the characteristics of high-specific surface area than big area and wetland matrix; Wetland bottom strictly anaerobic environment is that the application of MFC in wetland provides favourable condition richly endowed by nature in addition; Forming the strict anaerobic environment of anode, is the main path that increases substantially its electrogenesis and organic substrates utilising efficiency.Utilize the MFC characteristics high, improve its pollutant purification effect, can obtain electric energy simultaneously, realize the recovery energy of waste resource the removal usefulness of organic pollutant.
Realize simultaneously ecological wastewater processing and microbiological fuel cell electrogenesis method synthesis the performance advantage of MFC and artificial swamp.In artificial swamp, introduce the MFC technology, with the high-specific surface area matrix of artificial swamp lower floor anaerobic environment through after the modification as the anode of MFC, with the top layer matrix of artificial swamp air cathode, need not PEM as MFC, make up MFC type artificial swamp.Cooperate optimization from wetland and MFC; Wetland plant rhizosphere effect, wetland mikrobe particularly enrichment and the immobilization of electrogenesis bacterium and contaminant degradation bacterium have been strengthened; Promoted that the performance between wetland plant, wetland matrix, the MFC electrode three is collaborative, improved the organic purification efficiency and the electricity generation performance of composite system.The research that present MFC is applied in the artificial swamp does not appear in the newspapers both at home and abroad as yet.
Summary of the invention
Technical problem:The purpose of the utility model provides a kind of structure that realizes ecological wastewater processing and microbiological fuel cell electrogenesis simultaneously.Realize the ecological purification of waste water and be electric energy the Conversion of energy that pollutent is contained.
Technical scheme:A kind of structure that realizes ecological wastewater processing and microbiological fuel cell electrogenesis simultaneously; Be the MFC system that the outer connection circuit of artificial swamp main body and part artificial swamp assembly forms, the artificial swamp main body comprises rough sand gravel bed, conductive filler layer, insulating packing layer, top layer conductive material layer and wetland plant.Described rough sand gravel bed is at the lowest layer; Described conductive filler layer is in lower, anaerobic; Described insulating packing layer is between bottom conductive filler layer and top layer conductive material layer; Described wetland plant is fixed in the insulating packing layer, and along with the growth of plant, the wetland plant root system penetrates the bottom conductive filler layer gradually.The MFC system is made up of the external connection of anode electrode, cathode electrode and connection cathode and anode.Described anode is made up of artificial swamp bottom conductive filler layer, and described negative electrode is made up of artificial swamp top layer conductive material layer.A top layer conductive material layer part is immersed in the water, and a part is exposed in the air, forms air cathode.
The MFC system that the outer connection circuit of described artificial swamp main body and part artificial swamp assembly forms is furnished with rough sand gravel bed, conductive filler layer, insulating packing layer, top layer conductive material layer and wetland plant from bottom to up respectively.
Described artificial swamp main body can be vertical current, horizontal flow or undercurrent type water intake mode.
Described conductive filler layer can be granulated active carbon, graphite granule, fixedly wetland plant root system and support the plant vertical growth.
Described artificial swamp top insulating packing layer can be selected ganoid grit material for use, also can use glass fiber.
Described negative electrode electro-conductive material can be electro-conductive materials such as granulated active carbon, stainless steel, carbon cloth, graphite granule, graphite felt, and the catalyzer that platinum and alternative platinum such as iron, Mn oxide, ion complex or cobalt cpd can be carried out in the electro-conductive material surface carries out cathode material finishing processing.
The preferred titanium lead of described external connection also can be selected material leads such as copper for use, and carries out the insulated enclosure processing of tie point.
Beneficial effect:The performance advantage of comprehensive MFC of the utility model and artificial swamp; Utilize characteristics such as wetland matrix high-specific surface area that artificial swamp possesses and wetland bottom strictly anaerobic environment; Make the small molecules product of organic matter degradation more be prone to utilized by the electrogenesis bacterium; And then promoted enrichment and the electricity generation performance thereof of electrogenesis bacterium, and improved the electrogenesis efficient of total system, realized the ecological purification of waste water and be electric energy the Conversion of energy that pollutent is contained; Be the significant innovation of WWT theory, have immeasurable development potentiality.
Description of drawings
Fig. 1 is the system architecture synoptic diagram that the utility model is realized the method for ecological wastewater processing and microbiological fuel cell electrogenesis simultaneously;
Fig. 2 is the stack system concept map that the utility model is realized the method for ecological wastewater processing and microbiological fuel cell electrogenesis simultaneously.
1-rough sand gravel bed is wherein arranged; The 2-conductive filler layer; 3-insulating packing layer; 4-top layer conductive material layer; The 5-wetland plant; 6-wetland plant root system; The outer connection circuit of 7-; The outer connection circuit load of 8-; The 9-inhalant region; The 10-exhalant region.
Embodiment
Below, in conjunction with accompanying drawing and embodiment the utility model is described further.
As depicted in figs. 1 and 2; The MFC system that the structure that realizes ecological wastewater processing and microbiological fuel cell electrogenesis in the present embodiment is simultaneously formed by artificial swamp main body and the outer connection circuit of part artificial swamp assembly, the artificial swamp main body comprises rough sand gravel bed, conductive filler layer, insulating packing layer, top layer conductive material layer and wetland plant.Described rough sand gravel bed is at the lowest layer; Described conductive filler layer is in lower, anaerobic; Described insulating packing layer is between bottom conductive filler layer and top layer conductive material layer; Described wetland plant is fixed in the insulating packing layer, and along with the growth of plant, the wetland plant root system penetrates the bottom conductive filler layer gradually.The MFC system is made up of the external connection of anode electrode, cathode electrode and connection cathode and anode.Described anode is made up of artificial swamp bottom conductive filler layer, and described negative electrode is made up of artificial swamp top layer conductive material layer.A top layer conductive material layer part is immersed in the water, and a part is exposed in the air, forms air cathode.
Realize the structure of ecological wastewater processing and microbiological fuel cell electrogenesis in the time of present embodiment; Operation logic is such, after the waste water entering system, conductive filler layer through matrix with and on the microbial film that adheres to absorption, the purification of pollutent; Electronics and proton have been produced in the process; Electronics is linked to be circuit through anode, external connection and arrives negative electrode, and the insulating packing layer arrives negative electrode and proton is through top, negative electrode with oxygen as electron acceptor(EA); Generate water with proton and oxygen, form the loop and produce electric current.Material and the energy flux in the system strengthened in the collaborative coupling of total system, promoted its purification efficiency, strengthened production capacity usefulness.In engineering reality, can make up a plurality of sewage treating artificial wet lands-microbiological fuel cell composite system, and increase its electrogenesis voltage and current, and then reach the purpose of actual electricity consumption through a plurality of monomer storehouses, as shown in Figure 2.
Claims (5)
1. structure that realizes ecological wastewater processing and microbiological fuel cell electrogenesis simultaneously; It is characterized in that this structure comprises the microbiological fuel cell that artificial swamp main body and the outer connection circuit of part artificial swamp assembly form, wherein the artificial swamp main body comprises rough sand gravel bed (1), conductive filler layer (2), insulating packing layer (3), top layer conductive material layer (4) and wetland plant (5); Described rough sand gravel bed (1) is at the lowest layer; In the anaerobic zone of conductive filler layer (2) on rough sand gravel bed (1); Insulating packing layer (3) is positioned between conductive filler layer (2) and the top layer conductive material layer (4); Wetland plant (5) is fixed in the insulating packing layer (3), and along with the growth of plant, wetland plant root system (6) penetrates the bottom conductive filler layer gradually; Microbiological fuel cell is made up of the external connection of anode electrode, cathode electrode and connection yin, yang electrode; Anode electrode is made up of artificial swamp bottom conductive filler layer (2); Cathode electrode is made up of artificial swamp top layer conductive material layer (4); Top layer conductive material layer (a 4) part is immersed in the water, and a part is exposed in the air, forms air cathode.
2. by the described structure that realizes ecological wastewater processing and microbiological fuel cell electrogenesis simultaneously of claim 1, it is characterized in that described artificial swamp main body adopts vertical current, horizontal flow or undercurrent type water intake mode.
3. by the described structure that realizes ecological wastewater processing and microbiological fuel cell electrogenesis simultaneously of claim 1; It is characterized in that described conductive filler layer (4) is granulated active carbon or graphite granule, be used for fixing wetland plant root system (6) and support the plant vertical growth.
4. by the described structure that realizes ecological wastewater processing and microbiological fuel cell electrogenesis simultaneously of claim 1, it is characterized in that described artificial swamp main body top insulating packing layer (3) selects ganoid grit material for use, or use glass fiber.
5. by the described structure that realizes ecological wastewater processing and microbiological fuel cell electrogenesis simultaneously of claim 1, it is characterized in that described top layer conductive material layer (4) adopts granulated active carbon, stainless steel, carbon cloth, graphite granule or graphite felt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202460800U CN202164174U (en) | 2011-07-13 | 2011-07-13 | Structure capable of realizing ecological treatment of sewage and microbiological fuel cell electricity generation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011202460800U CN202164174U (en) | 2011-07-13 | 2011-07-13 | Structure capable of realizing ecological treatment of sewage and microbiological fuel cell electricity generation |
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| CN202164174U true CN202164174U (en) | 2012-03-14 |
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| CN2011202460800U Withdrawn - After Issue CN202164174U (en) | 2011-07-13 | 2011-07-13 | Structure capable of realizing ecological treatment of sewage and microbiological fuel cell electricity generation |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102249423A (en) * | 2011-07-13 | 2011-11-23 | 东南大学 | Structure for simultaneously realizing ecological sewage treatment and microbiological fuel cell electrogenesis |
| CN103708622A (en) * | 2014-01-02 | 2014-04-09 | 东华大学 | Microbial fuel cell constructed wetland for efficiently treating organic sewage |
| CN104003580A (en) * | 2014-06-04 | 2014-08-27 | 东南大学 | System for treatment of wetland-produced electricity from domestic sewage and electrochemical disinfection of wetland effluent |
| CN109678254A (en) * | 2018-12-27 | 2019-04-26 | 南昌航空大学 | A kind of microbiological fuel cell |
| WO2019091178A1 (en) * | 2017-11-09 | 2019-05-16 | 山东大学 | Constructed wetland based on biomass circulation, and method for forcedly removing pollutants of constructed wetland |
| CN110697872A (en) * | 2019-09-27 | 2020-01-17 | 南通大学 | Artificial wetland device of coupling cluster type microbial fuel cell |
-
2011
- 2011-07-13 CN CN2011202460800U patent/CN202164174U/en not_active Withdrawn - After Issue
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102249423A (en) * | 2011-07-13 | 2011-11-23 | 东南大学 | Structure for simultaneously realizing ecological sewage treatment and microbiological fuel cell electrogenesis |
| CN102249423B (en) * | 2011-07-13 | 2012-09-19 | 东南大学 | Structure for simultaneously realizing ecological sewage treatment and microbiological fuel cell electrogenesis |
| CN103708622A (en) * | 2014-01-02 | 2014-04-09 | 东华大学 | Microbial fuel cell constructed wetland for efficiently treating organic sewage |
| CN103708622B (en) * | 2014-01-02 | 2015-02-25 | 东华大学 | Microbial fuel cell constructed wetland for efficiently treating organic sewage |
| CN104003580A (en) * | 2014-06-04 | 2014-08-27 | 东南大学 | System for treatment of wetland-produced electricity from domestic sewage and electrochemical disinfection of wetland effluent |
| WO2019091178A1 (en) * | 2017-11-09 | 2019-05-16 | 山东大学 | Constructed wetland based on biomass circulation, and method for forcedly removing pollutants of constructed wetland |
| CN109678254A (en) * | 2018-12-27 | 2019-04-26 | 南昌航空大学 | A kind of microbiological fuel cell |
| CN110697872A (en) * | 2019-09-27 | 2020-01-17 | 南通大学 | Artificial wetland device of coupling cluster type microbial fuel cell |
| CN110697872B (en) * | 2019-09-27 | 2022-02-01 | 南通大学 | Artificial wetland device of coupling cluster type microbial fuel cell |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120314 Effective date of abandoning: 20120919 |