CN203707260U - Microbial fuel cell for in-situ repair of underground water - Google Patents
Microbial fuel cell for in-situ repair of underground water Download PDFInfo
- Publication number
- CN203707260U CN203707260U CN201420063737.3U CN201420063737U CN203707260U CN 203707260 U CN203707260 U CN 203707260U CN 201420063737 U CN201420063737 U CN 201420063737U CN 203707260 U CN203707260 U CN 203707260U
- Authority
- CN
- China
- Prior art keywords
- underground water
- fuel cell
- battery sleeve
- screen cloth
- cathode electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 230000000813 microbial effect Effects 0.000 title claims abstract description 24
- 239000000446 fuel Substances 0.000 title claims abstract description 17
- 238000011065 in-situ storage Methods 0.000 title abstract description 5
- 230000008439 repair process Effects 0.000 title abstract description 5
- 235000015097 nutrients Nutrition 0.000 claims abstract description 16
- 239000012528 membrane Substances 0.000 claims abstract description 7
- 239000004744 fabric Substances 0.000 claims description 22
- 230000002906 microbiologic effect Effects 0.000 claims description 13
- 239000003673 groundwater Substances 0.000 claims description 11
- 239000004020 conductor Substances 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 8
- 239000004579 marble Substances 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000003344 environmental pollutant Substances 0.000 description 15
- 231100000719 pollutant Toxicity 0.000 description 15
- 239000000243 solution Substances 0.000 description 12
- 230000015556 catabolic process Effects 0.000 description 11
- 238000006731 degradation reaction Methods 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 8
- 230000004060 metabolic process Effects 0.000 description 7
- 238000007254 oxidation reaction Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000035699 permeability Effects 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 230000004936 stimulating effect Effects 0.000 description 4
- 239000000356 contaminant Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 238000010010 raising Methods 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000009933 burial Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 239000003403 water pollutant Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Fuel Cell (AREA)
Abstract
The utility model discloses a microbial fuel cell for in-situ repair of underground water. The microbial fuel cell comprises a battery housing, wherein an externally-connected sleeve connector, a cell cathode electrode and an underground water outlet screen are arranged at one end of the battery housing from outside to inside; a cell anode electrode and an underground water inlet screen are arranged at the other end of the battery electrode from outside to inside; a lead-in pipe is arranged in the battery housing in the vertical direction; the upper part of the lead-in pipe on one side of the cell cathode electrode stretches out of the outer side of the battery housing to form a lead-in opening of air and a microbial nutrient solution; a lead-out screen of the air and the microbial nutrient solution is arranged at the lower end of the lead-in pipe; a proton exchange membrane is arranged in the middle of the interior of the battery housing in the horizontal direction.
Description
Technical field
The utility model relates to a kind of reparation by the device of the easy degradable organic pollutant polluted underground waters such as petroleum-type, and specifically a kind of original position is repaired the microbiological fuel cell that underground water is used.
Background technology
At present, Remedy Technology of Contaminated Groundwater mainly contains in situ chemical oxidation technology, permeability response wall, microbe recovery technique (comprising microbe stimulating technology and natural degradation) etc.
In situ chemical oxidation technology makes the pollutant in underground water or soil change the nontoxic or less material of toxicity into by there is chemical reaction after chemical oxidizing agent is shipped to target restoring area.Permeability response hurdle technology is to contact with reactant in the reaction material for different pollutants within the walls by filling, reaches the object of pollutant removal.The metabolism of microbe stimulating technology by injecting the raisings microbes such as the required nutriment of bacteria metabolism to contaminated area is to reach the object of speed of raising microbial degradation pollutant.Natural degradation is to allow under field conditions (factors) microbial degradation pollutant.
In above-mentioned underground water recovery technique, the reagent cost of in situ chemical oxidation technology is higher, and repairing effect is subject to the restriction of the hydrogeologic condition of stability, oxidability and the aquifer of oxidant; Permeability response wall need to excavate soil-burial permeability response wall, and volume is larger, and when practical application, underaction and cost are higher.
Microbe recovery technique, take the metabolism of microbe as basis, becomes material nontoxic or that toxicity is lower by poisonous and harmful substance being transformed or degrading, thereby reaches the object of administering environment.Microbe recovery technique aspect processing environment pollutant, have method simple, consume the features such as low, cost is low, reaction condition is gentle, repairing effect is good.
But under field conditions (factors), the pollutant in microbial degradation underground water is subject to carbon source (pollutant), electron acceptor (as O
2, NO
3 -, SO
4 2-deng), the restriction of the factor such as nutriment (N, P, K etc.), natural environment (pH, temperature, salinity etc.), the efficiency of microbial degradation pollutant under natural conditions is reduced greatly, need long time just can reach reparation target.In groundwater environment, when pollutant is during lower than certain concentration, biological because the required energy of self metabolism can not get supplementing, microbial degradation pollutant will be suppressed even and stop; Meanwhile, if pollutant levels are too high, the electron acceptor in polluted underground water supplements owing to can not get after ruing out of, and the degraded of pollutant is also suppressed.
Utility model content
The purpose of this utility model is to provide a kind of original position to repair the microbiological fuel cell that underground water is used, and solves the above problems.
The utility model solves the technical scheme that its technical problem adopts: a kind of original position is repaired the microbiological fuel cell that underground water is used, comprise battery sleeve, it is characterized in that, battery sleeve one end is respectively equipped with external cover interface tube from outside to inside, cell cathode electrode and groundwater seep screen cloth, the other end is respectively equipped with galvanic anode electrode and underground water entrance screen cloth from outside to inside, in battery sleeve, be vertically provided with an ingress pipe, battery sleeve outside formation air and microbial nutrient solution introducing port are stretched out in the top that is positioned at the ingress pipe of cell cathode electrode one side, the lower end of ingress pipe is provided with air and microbial nutrient solution is derived screen cloth, in battery sleeve, middle part along continuous straight runs is provided with proton exchange membrane.
In described battery sleeve, be filled with glass marble.
Described glass marble diameter is 2mm.
Between described cell cathode electrode and galvanic anode electrode, be also connected with copper conductor, on copper conductor, be connected with indicator light.
The beneficial effects of the utility model are: by device at the electrode at two ends, install inner proton exchange membrane, external circuits etc., form a complete microbiological fuel cell unit.Microbiological fuel cell itself, and the airborne oxygen blasting and the necessary nutriment of bacteria metabolism, stimulating the degradation speed that has also accelerated underground water pollutant in bacteria metabolism.Whether the electric current that microbiological fuel cell produces can carry out by the activity of the indicator light indicator microoraganism degradation of contaminant in external circuits, judges intuitively to people, reduces necessary characterization method.Thereby the injection volume that can save nutrient solution compared with traditional microbe stimulating technology reaches the object of saving reagent cost, the speed that has improved microbiological oxidation pollutant reaches the object of saving repair time.Whether the utility model can carry out by the activity of microbial degradation pollutant in external indicator light indication underground water, has saved by other means and has judged that microbe is whether in the step of degradation of contaminant.The utility model volume is little, has obvious advantage at aspects such as repairing the secondary reparation carried out in the poor region of repairing effect after polluted underground water among a small circle and large area repair engineering finish.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1-air and microbial nutrient solution introducing port, the external cover interface tube of 2-, 3-cell cathode electrode, 4-groundwater seep screen cloth, 5-battery sleeve, 6-proton exchange membrane, 7-air and microbial nutrient solution are derived screen cloth, 8-underground water entrance screen cloth, 9-galvanic anode electrode, 10-copper conductor, 11-indicator light.
Embodiment
As shown in Figure 1, a kind of original position is repaired the microbiological fuel cell that underground water is used, comprise battery sleeve 5, battery sleeve one end is respectively equipped with external cover interface tube 2 from outside to inside, cell cathode electrode 3 and groundwater seep screen cloth 4, the other end is respectively equipped with galvanic anode electrode 9 and underground water entrance screen cloth 8 from outside to inside, in battery sleeve 5, be vertically provided with an ingress pipe, battery sleeve outside formation air and microbial nutrient solution introducing port 1 are stretched out in the top that is positioned at the ingress pipe of cell cathode electrode 3 one sides, the lower end of ingress pipe is provided with air and microbial nutrient solution is derived screen cloth 7, the interior middle part of battery sleeve 5 along continuous straight runs is provided with proton exchange membrane 6.
In described battery sleeve 5, be filled with glass marble.
Described glass marble diameter is 2mm.
Between described cell cathode electrode 3 and galvanic anode electrode 9, be also connected with copper conductor 10, on copper conductor 10, be connected with indicator light 11.
Polluted underground water is by underground water entrance screen cloth 8 accesss to plant, at anode of fuel cell electrode 9 and near zone, and the organic pollution of the easy degraded in bacteria metabolism degraded underground water, easily degradable organic pollutant generation oxidation reaction.As used (CH
2o)
nrepresent the chemical structural formula of target contaminant, the oxidation reaction that anode of microbial fuel cell occurs is:
(CH
2O)
n+nH
2O→nCO
2+4nH
++4ne
-
The H that above-mentioned reaction produces
+move upward with underground water and pass through proton exchange membrane 6 chemical reaction occurs near cell cathode electrode 3.The e that reaction produces
-arrive cell cathode electrode 3 by galvanic anode electrode 9 by copper conductor 10 and indicator light 11.Near the chemical reaction occurring cell cathode electrode 3 is:
O
2+4H
++4e
-→2H
2O
O in above-mentioned reaction
2come from extraneous by air and microbial nutrient solution introducing port 1 and air and microbial nutrient solution derivation screen cloth 7 accesss to plant and be by convection into the airborne oxygen of cell cathode electrode 3.
The power that polluted underground water flow to groundwater seep screen cloth 4 by underground water entrance screen cloth 8 come from device outside underground water entrance screen cloth 8 and groundwater seep screen cloth 4 place's underground water pressure differential and and air and the microbial nutrient solution conduit outlet screen cloth 7 places pressure that blasts air jointly provide.
The inner 2mm glass marble of filling of battery sleeve 5, both can be microbe attachment point was provided, and controllably descended again the permeability of water.The groundwater seepage COEFFICIENT K of the utility model battery sleeve 5 inside is about 10
-3cm/s left and right, device underground water import screen cloth 8 mainly contains two parts composition, the poor P of underground water hydrostatic pressure with the pressure differential P of groundwater seep screen cloth 4
hwith the pressure P that blasts air generation
a, that is:
P
i=P
h+P
a
The poor P of underground water hydrostatic pressure
hfor the head difference of 1m, the air pressure difference p blasting
ageneral excursion be 0.43-4.3psi, be equivalent to 0.29-2.92m head difference.So P
ithe excursion of the value head difference that is 1.29-3.92m.According to Darcy formula, the flow velocity of underground water is:
the length that wherein L is device is 1m.So the groundwater velocity of device design is about 1.29 × 10
-5-3.92 × 10
-5m/s, so underground water is about 7-28 hour by the time of device.
This installs needed microbe and comes from polluted underground water, owing to importing the needed nutrient solution of microbe, the microbes in underground water is derived screen cloth 7 near zone Fast-propagations and is attached on the 2mm glass marble surface of filling in device at air and microbial nutrient solution.
Claims (4)
1. an original position is repaired the microbiological fuel cell that underground water is used, comprise battery sleeve, it is characterized in that, battery sleeve one end is respectively equipped with external cover interface tube from outside to inside, cell cathode electrode and groundwater seep screen cloth, the other end is respectively equipped with galvanic anode electrode and underground water entrance screen cloth from outside to inside, in battery sleeve, be vertically provided with an ingress pipe, battery sleeve outside formation air and microbial nutrient solution introducing port are stretched out in the top that is positioned at the ingress pipe of cell cathode electrode one side, the lower end of ingress pipe is provided with air and microbial nutrient solution is derived screen cloth, in battery sleeve, middle part along continuous straight runs is provided with proton exchange membrane.
2. a kind of original position according to claim 1 is repaired the microbiological fuel cell that underground water is used, and it is characterized in that, in described battery sleeve, is filled with glass marble.
3. a kind of original position according to claim 2 is repaired the microbiological fuel cell that underground water is used, and it is characterized in that, described glass marble diameter is 2mm.
4. a kind of original position according to claim 1 and 2 is repaired the microbiological fuel cell that underground water is used, and it is characterized in that, between described cell cathode electrode and galvanic anode electrode, is also connected with copper conductor, is connected with indicator light on copper conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420063737.3U CN203707260U (en) | 2014-02-12 | 2014-02-12 | Microbial fuel cell for in-situ repair of underground water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420063737.3U CN203707260U (en) | 2014-02-12 | 2014-02-12 | Microbial fuel cell for in-situ repair of underground water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203707260U true CN203707260U (en) | 2014-07-09 |
Family
ID=51057656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420063737.3U Expired - Lifetime CN203707260U (en) | 2014-02-12 | 2014-02-12 | Microbial fuel cell for in-situ repair of underground water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203707260U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104064794A (en) * | 2014-07-14 | 2014-09-24 | 中国海洋大学 | Microbial fuel cell capable of repairing nitrate polluted underground water in situ |
-
2014
- 2014-02-12 CN CN201420063737.3U patent/CN203707260U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104064794A (en) * | 2014-07-14 | 2014-09-24 | 中国海洋大学 | Microbial fuel cell capable of repairing nitrate polluted underground water in situ |
| CN104064794B (en) * | 2014-07-14 | 2016-04-13 | 中国海洋大学 | A kind of microbiological fuel cell of in-situ remediation of underground water azotate pollution |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 2188 No. 213022 Jiangsu province Zhonglou District of Changzhou City Avenue Patentee after: SUNTIME ENVIRONMENTAL REMEDIATION Co.,Ltd. Address before: 213022 Taihu road Jiangsu city Changzhou province Xinbei hi tech Zone No. 30 Patentee before: JIANGSU SUNTIME ENVIRONMENTAL REMEDIATION Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 213000 2188 Longcheng Road, Zhong Lou District, Changzhou, Jiangsu Patentee after: Shanda Environmental Restoration Co.,Ltd. Address before: 213022 No. 2188 Longcheng Avenue, Zhonglou District, Changzhou City, Jiangsu Province Patentee before: SUNTIME ENVIRONMENTAL REMEDIATION Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140709 |