CN206758561U - Microbiological fuel cell for uranium-containing waste water processing - Google Patents

Microbiological fuel cell for uranium-containing waste water processing Download PDF

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Publication number
CN206758561U
CN206758561U CN201720157883.6U CN201720157883U CN206758561U CN 206758561 U CN206758561 U CN 206758561U CN 201720157883 U CN201720157883 U CN 201720157883U CN 206758561 U CN206758561 U CN 206758561U
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China
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anode
uranium
waste water
fuel cell
negative electrode
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Expired - Fee Related
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CN201720157883.6U
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Chinese (zh)
Inventor
曾涛涛
刘子丹
熊匡
陈胜兵
周玉林
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University of South China
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University of South China
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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 microbiological fuel cell for uranium-containing waste water processing, including：Battery body, it provides an anaerobic environment, and setting PEM, is divided into anode chamber and cathode chamber by battery body, Oneida Shewanella and its nutrient solution are accommodated in anode chamber, hexavalent uranium waste water is accommodated in cathode chamber in it；Anode, it is arranged in anode chamber, and anode is arranged to lithium titanate/Graphene electrodes rod；Negative electrode, it is arranged in cathode chamber, and negative electrode is arranged to LiFePO4/graphene composite material electrode bar；External circuit, it electrically connects anode and negative electrode.The utility model is using lithium titanate/Graphene electrodes rod as anode, LiFePO4/graphene composite material electrode bar is negative electrode, conductance is strong, and efficiency of fuel cell generation is high, and anode cell has microorganism and its nutrient solution, cathode chamber accommodates hexavalent uranium waste water, avoid toxic action of the hexavalent uranium to microorganism, non-secondary pollution, it is not necessary to provide power energy-saving environmental protection, small investment, efficiency high.

Description

Microbiological fuel cell for uranium-containing waste water processing
Technical field
The utility model belongs to uranium wastewater treatment equipment, is related to a kind of Microbial fuel electricity for uranium-containing waste water processing Pond.
Background technology
It is all the more strong to the demand of the energy with the progress and development of the mankind.In order to solve energy problem, the mankind are positive Seek novel energy mode.Microbiological fuel cell is a kind of to be directly translated into the chemical energy in organic matter using microorganism The device of electric energy, its general principle are under anode chamber's anaerobic environment, and organic matter decomposes under microbial action and discharges electricity Son and proton, electronics are effectively transmitted by suitable electron transfer mediator between biological components and anode, and by outer Road is delivered to negative electrode and forms electric current, and proton is delivered to negative electrode by PEM, and oxidant obtains electronics in negative electrode and gone back It is former.
With the high speed development of modern industry, uranium mining and the production of uranium and application cause to environment such as water body, soil Uranium pollutes.Chemical method solves the method for water body uranium pollution, and not only expense is sufficiently expensive, and secondary pollution, inefficient be present The problems such as, particularly when the content of uranium in polluted-water is relatively low, purification water is larger, clean-up effect is especially undesirable.How will Microbiological fuel cell is applied to processing hexavalent uranium waste water and improves the hot issue that treatment effeciency is always this area research.
Utility model content
A purpose of the present utility model is that solve at least the above and/or defect, and provides and at least will be described later The advantages of.
The utility model design also has a purpose to be to provide a kind of microbiological fuel cell for uranium-containing waste water processing.
Therefore, technical scheme provided by the utility model is：
A kind of microbiological fuel cell for uranium-containing waste water processing, including：
Battery body, it provides an anaerobic environment, and setting PEM, anode is divided into by the battery body in it Room and cathode chamber, Oneida Shewanella and its nutrient solution are accommodated in the anode chamber, sexavalence is accommodated in the cathode chamber Uranium waste water, inject KH in cathode chamber2PO4As cushioning liquid, sodium acetate injects until output voltage stabilization exists daily in anode chamber 240-260mv；
Anode, it is arranged in the anode chamber, and the anode is arranged to lithium titanate/Graphene electrodes rod；
Negative electrode, it is arranged in the cathode chamber, and the negative electrode is arranged to LiFePO4/graphene composite material electrode Rod；
External circuit, it electrically connects the anode and negative electrode.
Preferably, in the described microbiological fuel cell for being used for uranium-containing waste water and handling, the anode chamber is provided with sun Pole inlet opening and anode apopore, the cathode chamber are provided with negative electrode inlet opening and negative electrode apopore, the anode apopore with The negative electrode apopore connection.
Preferably, in the described microbiological fuel cell for being used for uranium-containing waste water and handling, in addition to：
Nitrogen compression set, it is arranged in the anode chamber, and the nitrogen compression set content, which is received, nitrogen；
Vavuum pump, it is arranged in the cathode chamber；
Multiple additional conductive devices, the additional conductive device are arranged in the liquid in the anode chamber and cathode chamber, The additional conductive device includes cuboid framework and is arranged at parallel with its each side multiple auxiliary in the cuboid framework Rod member is helped, the cuboid framework and auxiliary bar are made by resin material, are outward extended with the additional conductive device First extension, first extension are conductive fiber.
Preferably, in the described microbiological fuel cell for being used for uranium-containing waste water and handling, the external circuit includes one The variable rheostat being arranged between the anode and negative electrode.
Preferably, in the described microbiological fuel cell for being used for uranium-containing waste water and handling, the anode chamber and cathode chamber Top be provided with a thief hole.
Preferably, in the described microbiological fuel cell for being used for uranium-containing waste water and handling, the anode and the negative electrode Surface be respectively provided with a plurality of gully, a plurality of gully forms multiple grids, the depth in the gully in the anode and cathode surface Spend for 0.5~1mm.
Preferably, in the described microbiological fuel cell for being used for uranium-containing waste water and handling, it is also associated with the grid Second extension, second extension are conductive fiber.
Preferably, in the described microbiological fuel cell for being used for uranium-containing waste water and handling, the conductive fiber is graphite Fiber.
Preferably, in the described microbiological fuel cell for being used for uranium-containing waste water and handling, the additional conductive device Length is 2~3cm, and width is 0.5~1cm, is highly 0.5~1cm, and the diameter on each side of additional conductive device is less than 1mm.
Preferably, in the described microbiological fuel cell for being used for uranium-containing waste water and handling, the PEM is poly- Vinylidene PEM.
The utility model comprises at least following beneficial effect：
The utility model is anode using lithium titanate/Graphene electrodes rod, LiFePO4/graphene composite material electrode bar For negative electrode, conductance is strong, and efficiency of fuel cell generation is high, and Oneida Shewanella and its nutrient solution, cathode chamber content are accommodated in anode chamber Receiving has hexavalent uranium waste water, avoids toxic action of the hexavalent uranium to microorganism, forms complete circuit, hexavalent uranium is reduced, this Invention processing uranium-containing waste water non-secondary pollution, it is not necessary to which power energy-saving environmental protection, small investment, efficiency high are provided.
Further advantage, target and feature of the present utility model embody part by following explanation, and part will also pass through Research of the present utility model and practice are understood by the person skilled in the art.
Brief description of the drawings
Fig. 1 is the structural representation of the microbiological fuel cell described in the utility model for uranium-containing waste water processing；
Fig. 2 is the operation principle signal of the microbiological fuel cell described in the utility model for uranium-containing waste water processing Figure；
Fig. 3 is the structural representation of additional conductive device described in the utility model；
Fig. 4 is the structural representation in electrode surface gully of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to explanation Book word can be implemented according to this.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or more The presence or addition of individual other elements or its combination.
As shown in Fig. 1,2,3 and 4, the utility model provides a kind of microbiological fuel cell for uranium-containing waste water processing, Including：
Battery body, it provides an anaerobic environment, and setting PEM 6, sun is divided into by the battery body in it Pole room and cathode chamber, Oneida Shewanella and its nutrient solution are accommodated in the anode chamber, six are accommodated in the cathode chamber Valency uranium waste water；Battery body can use 60mm × 80mm × 100mm lucite reative cells, inject KH in cathode chamber2PO4As Sodium acetate injects until output voltage stabilization is in 240-260mv daily in cushioning liquid, anode chamber.
Anode 5, it is arranged in the anode chamber, and the anode is arranged to lithium titanate/Graphene electrodes rod；
Negative electrode 7, it is arranged in the cathode chamber, and the negative electrode is arranged to LiFePO4/graphene composite material electrode Rod；
External circuit, it electrically connects the anode and negative electrode.
The utility model is anode using lithium titanate/Graphene electrodes rod, LiFePO4/graphene composite material electrode bar For negative electrode, conductance is strong, and efficiency of fuel cell generation is high, and Oneida Shewanella and its nutrient solution, cathode chamber content are accommodated in anode chamber Receiving has hexavalent uranium waste water, avoids toxic action of the hexavalent uranium to microorganism, forms complete circuit, hexavalent uranium is reduced, this Invention processing uranium-containing waste water non-secondary pollution, it is not necessary to which power energy-saving environmental protection, small investment, efficiency high are provided.
In one of embodiment of the present utility model, preferably, this is used for the microorganism combustion of uranium-containing waste water processing Expect in battery, the anode chamber is provided with anode inlet opening 3 and anode apopore 4, and the cathode chamber is provided with negative electrode inlet opening 9 With negative electrode apopore 8, the anode apopore connects with the negative electrode apopore.Anode inlet opening and negative electrode inlet opening are used to hold Continuous property injects respective liquid into anode chamber and cathode chamber respectively, and anode apopore and negative electrode apopore are interconnected to be formed Complete circuit.Continuously hexavalent uranium waste water is reduced.
In one of embodiment of the present utility model, preferably, this is used for the microorganism combustion of uranium-containing waste water processing Expect battery, in addition to：
Nitrogen compression set, it is arranged in the anode chamber, and the nitrogen compression set content, which is received, nitrogen；For to Anode chamber provides nitrogen, to keep its anaerobic environment.
Vavuum pump, it is arranged in the cathode chamber；For being vacuumized to cathode chamber, its anaerobic environment is kept.
Multiple additional conductive devices 13, as shown in figure 3, the additional conductive device is arranged at the anode chamber and cathode chamber In interior liquid, the additional conductive device 13 include cuboid framework 1301 and be arranged in the cuboid framework and its The parallel multiple auxiliary bars 1302 in each side, the cuboid framework and auxiliary bar are made by resin material, the auxiliary The first extension 1303 is outward extended with electric installation, first extension is conductive fiber.To improve microorganism with leading The contact area of isoelectric substance, improve battery conductive and reduction efficiency.
In one of embodiment of the present utility model, preferably, this is used for the microorganism combustion of uranium-containing waste water processing To expect in battery, the external circuit includes one and is arranged at variable rheostat 12 between the anode and negative electrode, and by the variable rheostat It is connected to the wire 11 of electrode tip.
In one of embodiment of the present utility model, preferably, this is used for the microorganism combustion of uranium-containing waste water processing Expect in battery, a thief hole is provided with above the anode chamber and cathode chamber, in Fig. 1, anode thief hole 2 and negative electrode take Sample hole 10.
In one of embodiment of the present utility model, preferably, as shown in figure 4, this is used for uranium-containing waste water processing Microbiological fuel cell in, the surface of the anode 5 and the negative electrode 7 is respectively provided with a plurality of gully 14, and a plurality of gully 14 exists The anode and cathode surface form multiple grids 15, and the depth in the gully is 0.5~1mm.To increase the reaction surface of electrode Product.
In such scheme, preferably, the second extension 1501 is also associated with the grid 15, second extension Thing is graphite fibre.
In one of embodiment of the present utility model, preferably, the conductive fiber is graphite fibre.
In one of embodiment of the present utility model, preferably, this is used for the microorganism combustion of uranium-containing waste water processing Expect in battery, the length of the additional conductive device is 2~3cm, and width is 0.5~1cm, is highly 0.5~1cm, described auxiliary The diameter on each side of assistant director of a film or play's electric installation is less than 1mm.
In one of embodiment of the present utility model, preferably, this is used for the microorganism combustion of uranium-containing waste water processing Expect in battery, the PEM 6 is polyvinylidene fluoride proton exchange membrane.
To make those skilled in the art be more fully understood by the utility model, the utility model also provides following worked Journey：Oneida Shewanella (Shewanella onedensis) China sea is injected in the anode chamber of double-chamber microbiological fuel cell Foreign Microbiological Culture Collection administrative center provides (MCCC, numbering 1A01706) and its culture medium.Injected in cathode chamber and remove oxygen Catholyte 200mL, addition KCl as supporting electrolyte, KH2PO4A 0- is connected as cushioning liquid, and at negative and positive the two poles of the earth 9999 Ω resistance box forms closed-loop path, and battery reacts in 30 DEG C of insulating boxs.Sodium acetate injects until defeated daily in anode chamber Go out voltage stabilization in 240-260mv.
The utility model negative electrode setting one piece of LiFePO4/graphene composite material electrode bar, one lithium titanate of anode setting/ Graphene electrodes rod, rough surface provide attachment place for microorganism, and are advantageous to produce electronics and are delivered to external circuit.It is cloudy LiFePO4 graphene composite material reaction rod is provided with pole room, accelerates reaction rate, chemical property is stable, and intensity is high, is uranium U (VI) ion provides the place that oxidation reaction occurs.
PEM is vertically provided with battery body and is fixed with flange, battery body is separated into anode chamber and negative electrode Room, it is vertical in anode chamber to be provided with anode material, rubber stopper is provided with the top of anode chamber, vertically cathode material is provided with cathode chamber, the moon Be respectively provided with a thief hole, resistance and data acquisition unit and connect at the top of anode chamber, its both ends connecting wire be each passed through rubber stopper with Anode material upper end is connected with cathode material upper end.And power supply, to promote the progress of reaction.
Cathode chamber uses one piece of LiFePO4/graphene composite material plate, uses lithium titanate/graphene compound in anode chamber Plate of material, cathode chamber graphene polyaniline plate shape, size 60mm × 5mm × 80mm, two blocks of pole plate plates are drawn by copper cash respectively, Outer meeting resistance case 0-9999 Ω, form electronic loop.
Cathode chamber and anode chamber are isolated by Kynoar (PVDF) PEM.
Before microbiological fuel cell starts, by two Room top inlet openings in anode chamber, cathode chamber is passed through 36000ml anodes Liquid, catholyte.Then two Room bottom apopores are opened, make anode chamber, cathode chamber liquid forms continuation flowing.
The utility model proposes be used for uranium-containing waste water processing microbiological fuel cell, anode chamber cultivate microorganism, Cathode chamber handle waste water, avoid toxic action of the hexavalent uranium to microorganism, make microbiological treatment high concentration uranium-containing waste water into For reality, a very efficient microbiological fuel cell is combined into, uranium-bearing U (VI) sewage can be handled, while and can will be raw Thing can be converted into the method for electric energy, kill two birds with one stone, and have and greatly promote practical value.
Although embodiment of the present utility model is disclosed as above, it is not restricted in specification and embodiment Listed utilization, it can be applied to various suitable fields of the present utility model completely, for those skilled in the art, Other modification is easily achieved, therefore under the universal limited without departing substantially from claim and equivalency range, this reality Specific details is not limited to new and shown here as the legend with description.

Claims (10)

  1. A kind of 1. microbiological fuel cell for uranium-containing waste water processing, it is characterised in that including：
    Battery body, it provides an anaerobic environment, and PEM is set in it, by the battery body be divided into anode chamber and Cathode chamber, Oneida Shewanella and its nutrient solution is accommodated in the anode chamber, accommodating hexavalent uranium in the cathode chamber gives up Water, inject KH in cathode chamber2PO4As cushioning liquid, sodium acetate injects until output voltage stabilization is in 240- daily in anode chamber 260mv；
    Anode, it is arranged in the anode chamber, and the anode is arranged to lithium titanate/Graphene electrodes rod；
    Negative electrode, it is arranged in the cathode chamber, and the negative electrode is arranged to LiFePO4/graphene composite material electrode bar；
    External circuit, it electrically connects the anode and negative electrode.
  2. 2. the microbiological fuel cell for uranium-containing waste water processing as claimed in claim 1, it is characterised in that the anode chamber Anode inlet opening and anode apopore are provided with, the cathode chamber is provided with negative electrode inlet opening and negative electrode apopore, the anode Apopore connects with the negative electrode apopore.
  3. 3. the microbiological fuel cell for uranium-containing waste water processing as claimed in claim 1, it is characterised in that also include：
    Nitrogen compression set, it is arranged in the anode chamber, and the nitrogen compression set content, which is received, nitrogen；
    Vavuum pump, it is arranged in the cathode chamber；
    Multiple additional conductive devices, the additional conductive device is arranged in the liquid in the anode chamber and cathode chamber, described Additional conductive device includes cuboid framework and the multiple auxiliary rods parallel with its each side being arranged in the cuboid framework Part, the cuboid framework and auxiliary bar are made by resin material, and first is outward extended with the additional conductive device Extension, first extension are conductive fiber.
  4. 4. the microbiological fuel cell for uranium-containing waste water processing as claimed in claim 1, it is characterised in that the external electrical Road includes a variable rheostat being arranged between the anode and negative electrode.
  5. 5. the microbiological fuel cell for uranium-containing waste water processing as claimed in claim 1, it is characterised in that the anode chamber With a thief hole is provided with above cathode chamber.
  6. 6. as claimed in claim 1 for uranium-containing waste water processing microbiological fuel cell, it is characterised in that the anode and The surface of the negative electrode is respectively provided with a plurality of gully, and a plurality of gully forms multiple grids in the anode and cathode surface, described The depth in gully is 0.5~1mm.
  7. 7. the microbiological fuel cell for uranium-containing waste water processing as claimed in claim 6, it is characterised in that on the grid The second extension is also associated with, second extension is conductive fiber.
  8. 8. the microbiological fuel cell for being used for uranium-containing waste water processing as described in claim 3 or 7 is any, it is characterised in that institute It is graphite fibre to state conductive fiber.
  9. 9. the microbiological fuel cell for uranium-containing waste water processing as claimed in claim 3, it is characterised in that the auxiliary is led The length of electric installation is 2~3cm, and width is 0.5~1cm, is highly 0.5~1cm, the diameter on each side of additional conductive device Less than 1mm.
  10. 10. the microbiological fuel cell for uranium-containing waste water processing as claimed in claim 1, it is characterised in that the proton Exchange membrane is polyvinylidene fluoride proton exchange membrane.
CN201720157883.6U 2017-02-21 2017-02-21 Microbiological fuel cell for uranium-containing waste water processing Expired - Fee Related CN206758561U (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109942076A (en) * 2019-04-01 2019-06-28 中国科学院生态环境研究中心 Utilize the method for uranium in microbiological fuel cell removal-recycle-water and synchronous electrogenesis
CN115584402A (en) * 2022-11-01 2023-01-10 西北工业大学 Self-driven electrochemical device and method for extracting uranium and recycling electric energy and application of self-driven electrochemical device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109942076A (en) * 2019-04-01 2019-06-28 中国科学院生态环境研究中心 Utilize the method for uranium in microbiological fuel cell removal-recycle-water and synchronous electrogenesis
CN109942076B (en) * 2019-04-01 2020-08-28 中国科学院生态环境研究中心 Method for removing and recycling uranium in water and synchronously generating electricity by utilizing microbial fuel cell
CN115584402A (en) * 2022-11-01 2023-01-10 西北工业大学 Self-driven electrochemical device and method for extracting uranium and recycling electric energy and application of self-driven electrochemical device
CN115584402B (en) * 2022-11-01 2023-11-24 西北工业大学 Self-driven electrochemical device and method for extracting uranium and recycling electric energy and application of self-driven electrochemical device and method

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Granted publication date: 20171215

Termination date: 20190221