CN204281413U - A kind of two rooms MFC Waste Water Treatment combined with A/O technique - Google Patents
A kind of two rooms MFC Waste Water Treatment combined with A/O technique Download PDFInfo
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- CN204281413U CN204281413U CN201420686326.XU CN201420686326U CN204281413U CN 204281413 U CN204281413 U CN 204281413U CN 201420686326 U CN201420686326 U CN 201420686326U CN 204281413 U CN204281413 U CN 204281413U
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- peristaltic pump
- settling tank
- compartment
- cathode compartment
- water
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- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 19
- 230000002572 peristaltic effect Effects 0.000 claims abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 13
- 239000012528 membrane Substances 0.000 claims abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 230000001788 irregular Effects 0.000 claims description 3
- 239000000446 fuel Substances 0.000 abstract description 25
- 230000002906 microbiologic effect Effects 0.000 abstract description 24
- 239000010865 sewage Substances 0.000 abstract description 14
- 238000011084 recovery Methods 0.000 abstract description 3
- 230000001360 synchronised effect Effects 0.000 abstract description 3
- 239000002351 wastewater Substances 0.000 description 8
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
- 229910052698 phosphorus Inorganic materials 0.000 description 5
- 239000011574 phosphorus Substances 0.000 description 5
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 4
- 230000000813 microbial effect Effects 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- 229910002651 NO3 Inorganic materials 0.000 description 3
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000006396 nitration reaction Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000003809 water extraction Methods 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
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- Fuel Cell (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The utility model discloses a kind of two rooms MFC Waste Water Treatment combined with A/O technique.Separated by proton exchange membrane between anolyte compartment and cathode compartment, main anode is provided with in anolyte compartment, supplementary anode, and connected by wire, aerating apparatus is provided with bottom cathode compartment, negative electrode is provided with in cathode compartment, negative electrode is connected with main anode through variable rheostat, anolyte compartment's water outlet is through the second peristaltic pump, second settling tank, 3rd peristaltic pump is connected with cathode compartment water-in, first settling tank is connected with anolyte compartment's water-in through the first peristaltic pump, cathode compartment water outlet is through the 4th peristaltic pump, 3rd settling tank, 5th peristaltic pump is connected with anolyte compartment's water-in, cathode compartment water outlet is connected with the 4th settling tank.The utility model effectively make use of two electrode vessels of double-chamber microbiological fuel cell, achieve synchronous denitrification dephosphorizing de-carbon, and produce continual and steady electric current, reach the unification of sewage disposal and energy recovery, further improve microbiological fuel cell process waster water process.
Description
Technical field
The utility model relates to a kind of two rooms MFC(microbiological fuel cell combined with A/O technique) Waste Water Treatment.
Background technology
Microbiological fuel cell (MFC) is a kind of is catalyzer with microorganism, the chemical energy in organism is become the device of electric energy.Microbiological fuel cell produces electronics and proton with the microbiological deterioration organism being attached to anode, and the electron transmission of generation arrives negative electrode through external circuit after anode, produces extrinsic current thus.And the proton produced arrives negative electrode by barrier material, thus complete the transmission of inside battery electric charge.Common microbial battery is divided into single-chamber microbial fuel cell and double-chamber microbiological fuel cell, and its difference is mainly reflected in the difference of Cathode Design.Single-chamber microbial fuel cell adopts air cathode, and double-chamber microbiological fuel cell adopts abiotic negative electrode or bioelectrode, is separated between two room by proton exchange membrane salt bridge.Adopt air cathode or abiotic negative electrode high to catalyst requirement, cost is comparatively large, increased gradually in recent years, and how effectively to utilize the study hotspot that cathode compartment also becomes current to the research of biological-cathode and report.
There is the report utilizing microbiological fuel cell to dispose of sewage the nineties in 20th century the earliest.At present, many experts and scholars are devoted to the research this technology being applied to sanitary sewage and Industrial Wastewater Treatment, make remarkable progress.But the technology that current employing microbiological fuel cell is disposed of sewage is also immature, is still in the experimental study stage, configuration, electrode materials, treatment process etc. for electrode vessel also do not have the recognized standard.Also there is the problems such as processing efficiency is low, current density is low, application cost is high in microbiological fuel cell process waste water.The technique of current process waste water has the techniques such as AO, A/A/O, MBR.AO technique is the sewage treatment process of current widespread use, and comparison of processes is ripe.Microbiological fuel cell is combined with AO technique, can the energy be reclaimed while process waste water, there is good application prospect.
Summary of the invention
The purpose of this utility model overcomes the deficiencies in the prior art, provides a kind of process waste water realizing adopting microbiological fuel cell efficient stable, and reduce the two rooms MFC Waste Water Treatment combined with A/O technique of cost for wastewater treatment.
The two rooms MFC Waste Water Treatment combined with A/O technique comprises anolyte compartment, cathode compartment, negative electrode, main anode, supplementary anode, proton exchange membrane, aerating apparatus, variable rheostat, the first settling tank, the first peristaltic pump, the second peristaltic pump, the second settling tank, the 3rd peristaltic pump, the 4th peristaltic pump, the 3rd settling tank, the 5th peristaltic pump, the 4th settling tank, separated by proton exchange membrane between anolyte compartment and cathode compartment, main anode is provided with in anolyte compartment, supplementary anode, and connected by wire, aerating apparatus is provided with bottom cathode compartment, negative electrode is provided with in cathode compartment, negative electrode is connected with main anode through variable rheostat, anolyte compartment's water outlet is through the second peristaltic pump, second settling tank, 3rd peristaltic pump is connected with cathode compartment water-in, first settling tank is connected with anolyte compartment's water-in through the first peristaltic pump, cathode compartment water outlet is through the 4th peristaltic pump, 3rd settling tank, 5th peristaltic pump is connected with anolyte compartment's water-in, cathode compartment water outlet is connected with the 4th settling tank.
Described main anode is the carbon felt of square sheet, and supplementary anode is the irregular carbon felt of filling in anolyte compartment.
The beneficial effect that the utility model compared with prior art has:
1. the utility model effectively make use of the feature of double-chamber microbiological fuel cell, and adopt biological-cathode, battery cost is low, effectively utilizes the volume of two electrode vessels simultaneously, decreases cost of floor space.
2. the utility model combines the feature of the AO technique of present Sewage treatment systems widespread use, and denitrification, front nitrated rear, effectively utilize former water extraction for carbon source, avoids and additionally add carbon source, effectively achieve denitrogenation dephosphorizing and organic removal.
3. the utility model achieves continuum micromeehanics, can realize stable effluent quality and outward current, achieves the unification of sewage disposal and energy recovery.
4. the utility model facilitates regulation and control, present method can by controlling the flow of peristaltic pump, regulate hydraulic detention time and nitrate recirculation ratio, simultaneously can also by the useful volume ratio regulating the loading level of anolyte compartment's supporting electrode to control anolyte compartment and cathode compartment, to control denitrification and nitrated hydraulic detention time ratio, reach best Nitrogen/Phosphorus Removal.
5. the utility model is in anolyte compartment by the filling of supporting electrode, increases the biomembranous surface-area of anode, without the need to stirring, decreases the loss of biomass simultaneously.
Accompanying drawing explanation
Fig. 1 is the two rooms MFC Waste Water Treatment structural representation combined with A/O technique;
In figure, anolyte compartment 1, cathode compartment 2, negative electrode 3, main anode 4, supplementary anode 5, proton exchange membrane 6, aerating apparatus 7, variable rheostat 8, first settling tank 9, first peristaltic pump 10, second peristaltic pump 11, second settling tank 12, the 3rd peristaltic pump 13, the 4th peristaltic pump 14, the 3rd settling tank 15, the 5th peristaltic pump 16, the 4th settling tank 17.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail.
As shown in Figure 1, the two rooms MFC Waste Water Treatment combined with A/O technique comprises anolyte compartment 1, cathode compartment 2, negative electrode 3, main anode 4, supplementary anode 5, proton exchange membrane 6, aerating apparatus 7, variable rheostat 8, first settling tank 9, first peristaltic pump 10, second peristaltic pump 11, second settling tank 12, the 3rd peristaltic pump 13, the 4th peristaltic pump 14, the 3rd settling tank 15, the 5th peristaltic pump 16, the 4th settling tank 17, separated by proton exchange membrane 6 between anolyte compartment 1 and cathode compartment 2, main anode 4 is provided with in anolyte compartment 1, supplementary anode 5, and connected by wire, aerating apparatus 7 is provided with bottom cathode compartment 2, negative electrode 3 is provided with in cathode compartment 2, negative electrode 3 is connected with main anode 4 through variable rheostat 8, anolyte compartment 1 water outlet is through the second peristaltic pump 11, second settling tank 12, 3rd peristaltic pump 13 is connected with cathode compartment 2 water-in, first settling tank 9 is connected with anolyte compartment 1 water-in through the first peristaltic pump 10, cathode compartment 2 water outlet is through the 4th peristaltic pump 14, 3rd settling tank 15, 5th peristaltic pump 16 is connected with anolyte compartment 1 water-in, cathode compartment 2 water outlet is connected with the 4th settling tank 17.
The carbon felt of the described square sheet of negative electrode 3, size is determined according to cathode compartment size, and thickness is 1cm, surface attachment aerobic microbiological film; Anode is divided into main anode 4 and supplementary anode 5, and main anode 4 designs same negative electrode 3, and supplementary anode 5 is the irregular carbon felt of filling in anolyte compartment, anode surface attachment anaerobe film.
The two rooms MFC method of wastewater treatment combined with A/O technique is: former water precipitates at the first settling tank 9, enter anolyte compartment through the first peristaltic pump 10 after anaerobic pretreatment, carbon source is provided, anolyte compartment 1 dissolved oxygen < 0.5mg/L for anolyte compartment 1 carries out anti-nitration reaction; Water after anolyte compartment 1 processes instills the second settling tank 12 by the second peristaltic pump 11, water after second settling tank 12 precipitates enters cathode compartment 2 through the 3rd peristaltic pump 13 and carries out nitration reaction and organic matter degradation, cathode compartment 2 adopts intermittent aeration mode, dissolved oxygen 6-8 mg/L in cathode compartment 2; A water part after cathode compartment 2 processes instills the 3rd settling tank 15 by the 4th peristaltic pump 14, water after 3rd settling tank 15 precipitates enters anolyte compartment 1 by the 5th peristaltic pump 16, and the water another part after cathode compartment 2 processes precipitates rear outflow by the mode of nature stream by the 4th settling tank 17; Internal recycle is realized by the second peristaltic pump 11, second settling tank 12, the 3rd peristaltic pump 13, the 4th peristaltic pump 14, the 3rd settling tank 15, the 5th peristaltic pump 16 between anolyte compartment 1 and cathode compartment 2, improve waste water treatment efficiency, achieve synchronous denitrification dephosphorizing de-carbon.
Embodiment 1: double-chamber microbiological fuel cell (MFC) the Waste Water Treatment treatment of simulated waste water combined with A/O technique
Double-chamber microbiological fuel cell (MFC) the Waste Water Treatment treatment of simulated wastewater treatment simulated wastewater method combined with A/O technique is as follows: microbiological fuel cell as shown in Figure 1, anolyte compartment 1 with cathode compartment 2 for the length of side is the square of 12cm, negative electrode 3 and main anode 4 are the every 10cm of length and width, and thickness is the square carbon felt thin slice of 1cm.The useful volume of cathode compartment 2 is 1.5 liters; Supplementary anode 5 fills 2/3rds of anolyte compartment 1 volume, and the useful volume of anode 1 is 0.5L.Simulated wastewater tap water configures, and wherein COD is about 400mg/L, and ammonia nitrogen is about 40mg/L, and phosphorus is about 6mg/L, adds NaCl 0.4g/L in simulated wastewater simultaneously.Regulating peristaltic pump to control total hrt is 8 hours, and nitrate recirculation ratio is 3:1.By experiment, collection water inlet, water outlet detect: average water outlet COD is 32mg/L, and clearance reaches 92%; Average water outlet ammonia nitrogen concentration is 5.71mg/L, and clearance reaches 86%; Average water outlet phosphorus concentration is 0.82mg/L, and clearance reaches 86%.Treatment effect is good.Microbiological fuel cell open circuit voltage is stabilized in 0.80 ~ 0.84V, and maximum power density is 88mW/m
2, current density is 105mA/ m
2, electrogenesis is respond well.
Embodiment 2: double-chamber microbiological fuel cell (MFC) the Waste Water Treatment process sanitary sewage combined with A/O technique
As follows with the double-chamber microbiological fuel cell that A/O technique combines (MFC) Waste Water Treatment process sanitary sewage method: to adopt the microbial fuel cell unit identical with example 1, former water is the untreated sanitary sewage gathered from sewage work.Former water COD is 323mg/L, and ammonia nitrogen is 34.2mg/L, and phosphorus is 3.7mg/L, and regulating peristaltic pump to control total hrt is 8 hours, and nitrate recirculation ratio is 3:1.It is 38mg/L that experiment records water outlet COD, and ammonia nitrogen concentration is 6.76mg/L, and phosphorus concentration is 0.97mg/L, and clearance is respectively 88%, 80%, 74%, reaches national city domestic sewage process emission standard.Microbiological fuel cell open circuit voltage is stabilized in 0.78 ~ 0.81V, and maximum power density is 72mW/ m
2, current density is 89mA/ m
2, electrogenesis is respond well.
The utility model effectively make use of two electrode vessels of double-chamber microbiological fuel cell, and achieve synchronous denitrification dephosphorizing de-carbon, in laboratory simulation, this invention has good effect to sewage disposal, produce continual and steady electric current simultaneously, achieving the unification of sewage disposal and energy recovery, is the improvement to microbiological fuel cell process waster water process.
Claims (2)
1. the two rooms MFC Waste Water Treatment combined with A/O technique, is characterized in that comprising anolyte compartment (1), cathode compartment (2), negative electrode (3), main anode (4), supplementary anode (5), proton exchange membrane (6), aerating apparatus (7), variable rheostat (8), the first settling tank (9), the first peristaltic pump (10), the second peristaltic pump (11), the second settling tank (12), the 3rd peristaltic pump (13), the 4th peristaltic pump (14), the 3rd settling tank (15), the 5th peristaltic pump (16), the 4th settling tank (17), separated by proton exchange membrane (6) between anolyte compartment (1) and cathode compartment (2), main anode (4) is provided with in anolyte compartment (1), supplementary anode (5), and connected by wire, cathode compartment (2) bottom is provided with aerating apparatus (7), negative electrode (3) is provided with in cathode compartment (2), negative electrode (3) is connected with main anode (4) through variable rheostat (8), anolyte compartment (1) water outlet is through the second peristaltic pump (11), second settling tank (12), 3rd peristaltic pump (13) is connected with cathode compartment (2) water-in, first settling tank (9) is connected with anolyte compartment (1) water-in through the first peristaltic pump (10), cathode compartment (2) water outlet is through the 4th peristaltic pump (14), 3rd settling tank (15), 5th peristaltic pump (16) is connected with anolyte compartment (1) water-in, cathode compartment (2) water outlet is connected with the 4th settling tank (17).
2. the two rooms MFC Waste Water Treatment combined with A/O technique as claimed in claim 1, is characterized in that: the carbon felt that described main anode (4) is square sheet, and supplementary anode (5) is the irregular carbon felt of filling in anolyte compartment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420686326.XU CN204281413U (en) | 2014-11-17 | 2014-11-17 | A kind of two rooms MFC Waste Water Treatment combined with A/O technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420686326.XU CN204281413U (en) | 2014-11-17 | 2014-11-17 | A kind of two rooms MFC Waste Water Treatment combined with A/O technique |
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| Publication Number | Publication Date |
|---|---|
| CN204281413U true CN204281413U (en) | 2015-04-22 |
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|---|---|---|---|
| CN201420686326.XU Withdrawn - After Issue CN204281413U (en) | 2014-11-17 | 2014-11-17 | A kind of two rooms MFC Waste Water Treatment combined with A/O technique |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105406096A (en) * | 2015-10-28 | 2016-03-16 | 武汉理工大学 | Synchronous sewage denitrification and desulphuration method for microbial fuel cell |
| CN107359365A (en) * | 2017-07-12 | 2017-11-17 | 中国农业科学院农田灌溉研究所 | A kind of hydrodynamic force microbiological fuel cell desalter |
| CN111268799A (en) * | 2020-03-03 | 2020-06-12 | 南京大学 | Efficient biological treatment system and process for organic nitrogen industrial wastewater |
| CN111448698A (en) * | 2018-03-23 | 2020-07-24 | 栗田工业株式会社 | Microbial power generation device and method for operating same |
-
2014
- 2014-11-17 CN CN201420686326.XU patent/CN204281413U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105406096A (en) * | 2015-10-28 | 2016-03-16 | 武汉理工大学 | Synchronous sewage denitrification and desulphuration method for microbial fuel cell |
| CN107359365A (en) * | 2017-07-12 | 2017-11-17 | 中国农业科学院农田灌溉研究所 | A kind of hydrodynamic force microbiological fuel cell desalter |
| CN111448698A (en) * | 2018-03-23 | 2020-07-24 | 栗田工业株式会社 | Microbial power generation device and method for operating same |
| CN111268799A (en) * | 2020-03-03 | 2020-06-12 | 南京大学 | Efficient biological treatment system and process for organic nitrogen industrial wastewater |
| CN111268799B (en) * | 2020-03-03 | 2021-04-27 | 南京大学 | Efficient biological treatment system and process for organic nitrogen industrial wastewater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150422 Effective date of abandoning: 20160302 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |