CN109970174A - A kind of method of fermentor hybrid constructed wetland microbiological fuel cell denitrogenation - Google Patents
A kind of method of fermentor hybrid constructed wetland microbiological fuel cell denitrogenation Download PDFInfo
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- CN109970174A CN109970174A CN201910326081.7A CN201910326081A CN109970174A CN 109970174 A CN109970174 A CN 109970174A CN 201910326081 A CN201910326081 A CN 201910326081A CN 109970174 A CN109970174 A CN 109970174A
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- fuel cell
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/005—Combined electrochemical biological processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/06—Nutrients for stimulating the growth of microorganisms
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- General Chemical & Material Sciences (AREA)
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- Biological Treatment Of Waste Water (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
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Abstract
A kind of method of fermentor hybrid constructed wetland microbiological fuel cell denitrogenation of the present invention, is sequentially connected fermentor and artificial swamp microbiological fuel cell.The fermentor adds biomass and water in feeding chamber, enter anaerobic digestion in fermentor after mixing, if titanium wire network prevents solid carbon source from entering fermentor water outlet, digestive juice and sewage enter artificial swamp microbiological fuel cell after mixing, from bottom to up followed by anaerobic zone, anode region, wetland plant carbon source area, cathodic region, wetland plant and overflow weir, wherein, the discarded wetland plant of wetland plant carbon source Qu Weiyong titanium reel package generates more to cross while carbon source improves denitrification effect and strengthens electricity generation performance.Utilization of waste as resource, economical and energy saving are enhanced the tail water denitrification effect of artificial swamp microbiological fuel cell by the present invention.
Description
Technical field
The invention belongs to technical field of sewage, are particularly suitable for the advanced treating of municipal sewage plant's tail water, relate to
And a kind of method that artificial swamp microbiological fuel cell handles micro- life, specifically a kind of fermentor hybrid constructed wetland microorganism
The method of fuel cell denitrogenation.
Background technique
In recent years, energy shortage and water pollution are got worse as two hang-ups.Therefore water treatment technology and processed
Concern of the combination of production capacity by researchers in journey.And artificial swamp compound bio fuel cell meets this theory,
It can be produced electricl energy while efficient water process, also therefore become current very powerful and exceedingly arrogant research topic.However, in tail water
Nitrogen is difficult to remove due to a lack of effective carbon source, and traditional carbon source is at high cost and may generate the secondary pollution of water body, therefore,
Outer plus biomass carbon source becomes a kind of development trend in treatment process.
Often there is the nitrogen of difficult removal in tail water, if the exceeded tail water of nitrogen flows into water body, it will cause water body rich
The problems such as nutrient laden, seriously affects water environment health.However, the removal of nitrogen needs the carbon of additional a large amount of good biodegradabilities
Source, this not only adds operating costs, it is also possible to lead to the secondary pollution of water body.China is large agricultural country, can generate a large amount of agricultures
Crop material or other class straws are takeed a long time by returning to the field effect.These waste straws are efficiently used, and
It is pre-processed, as denitrifying additional carbon, finally realizes resource utilization.Artificial swamp compound bio fuel cell quilt
Numerous studies, but it is less with the research that it handles tail water.Such as China's number of applying for a patent utilizes the group for 201810206055.6
Collaboration system processing influent COD is 300mg/L, 600mg/L, 1200mg/L, which can obtain preferable COD removal rate, and mention
High system electricity generation performance.But since the influent COD of the device is higher, restriction effect will not be caused to denitrification, if for going
Except the effect of the tail water of low COD is unknown, it is therefore desirable to further research；Such as China's number of applying for a patent is again
201810031739.7, by coupling artificial swamp-microbiological fuel cell with hydrolytic tank, it can be improved dissolved oxygen ladder
Degree, and effectively increases maximum voltage and maximum power density, but it is to COD in raw water (70.30%), NH4 +-N
(42.11%), the average removal rate of TN (37.05%) is lower.Therefore, existing artificial swamp-microbiological fuel cell exists
The defects of more efficiency of fuel cell generation is low, denitrification effect is bad, and be difficult to improve the two active balance while realizing efficient denitrification
Electricity generation performance.
Summary of the invention
Technical problem: the purpose of the present invention solves in current artificial swamp microbiological fuel cell water treatment technology not
Foot, provides a kind of method of fermentor hybrid constructed wetland microbiological fuel cell denitrogenation, thus strengthened artificial wet land microorganism
Nitric efficiency in fuel cell tail water, and improve electricity production efficiency.
Technical solution: the object of the present invention is to provide a kind of fermentor hybrid constructed wetland microbiological fuel cell denitrogenations
Method.Vertical current constructed wetland lower layer dissolved oxygen is lower, is anoxic even anaerobism, and it is aerobic zone that upper layer dissolved oxygen is abundant, and this
Kind dissolution oxygen distribution is consistent with air cathode type microbiological fuel cell, and anode chamber is anaerobic zone, is conducive to anaerobe drop
Organic matter is solved, is the source of electronics；Cathode chamber is aerobic zone, is the pooling zone of electronics, while utilizing O2As electron acceptor, reach
To removal pollutant while generate circuit.In order to improve denitrification effect, biomass Simulated Wetland is placed in anode chamber and is planted
Object withers and falls, and wetland plant can be used as additional carbon, generates more abundant electronics, improves electricity production, by discarded stalk
Resource utilization.A fermentor in addition, artificial swamp microbiological fuel cell is connected.It is placed in fermentor pretreated wet
Hardly degraded organic substance is decomposed into available carbon source, such as acetic acid under anaerobic digestion, further increases device by ground straw
Denitrification effect.
A kind of method of fermentor hybrid constructed wetland microbiological fuel cell denitrogenation, comprising: anaerobic fermentation tank, distribution reservoir
And composition is connected in series in artificial swamp microbiological fuel cell；It is characterized in that the external water outlet of anaerobic fermentation tank, distribution reservoir are discharged
Mouth is connected with artificial swamp microbiological fuel cell by a threeway, and anaerobic digestion solution is uniformly mixed with the sewage in distribution reservoir
Artificial swamp microbiological fuel cell bottom is flowed by peristaltic pump afterwards, flows through anaerobic zone, anode region, cathodic region from bottom to top,
Finally water outlet flows into overflow weir and stablizes water outlet.
Inoculation anaerobic activated sludge is run after culture 7 days in fermentor.Shaft is set in pipe, and shaft is stirred equipped with metal
Biomass carbon source is sufficiently stirred with anaerobic sludge in leaf；Shaft is connected to the motor, in fermentor operational process continuously
It is slowly stirred；Water inlet by immersible pump control certain flow flow slowly into fermentor, guarantee certain influent load to
Determine that residence time, residence time are at least 6-7h；Diameter titanium wire network identical with tank body is inside set, prevents biomass carbon source with water
Stream enters water outlet；Digestive juice is slowly flowed out by top water outlet, and gravity stream is mixed with sewage.
Sewage after mixing is adjusted by peristaltic pump and controls certain flow velocity, determines hydraulic loading and residence time,
Residence time is at least for 24 hours；Sewage is filled out by bottom under a certain pressure by artificial swamp microbiological fuel cell water inlet
Material, which is the gravel that diameter is 5-12mm, and packed height is about 150-200mm；Anode chamber is subsequently flowed into, the filler in the area
The sand for being 0.5-2mm for diameter, packed height are about 150-250mm；It finally flows into cathode chamber, the filler in the area is diameter
For the gravel of 5-12mm, packed height is about 100-250mm.A titanium reel is placed in anode chamber, to fix wetland plant carbon
Source, length, width and height are about 250mm*200mm*50mm.Anode is placed in the titanium reel, and to come into full contact with carbon source, cathode is put
It is placed in filler surface, close to aqueous vapor junction, to improve dissolved oxygen.Yin, yang the two poles of the earth are that graphite plate is made, and size is
200mm*100*8mm, yin-yang the two poles of the earth are spaced about 180mm, are sequentially drilled to graphite plate with micro drill, to mention
The attachment of high microorganism.Yin-yang the two poles of the earth external wire prevents from corroding with mackintosh winding conductor grip, and external circuit connects resistance
Case, adjusting resistance are 1000 Ω, a real-time recorder of voltage in parallel, to record the voltage of the device in real time.Water plant
Select fluitante such as water hyacinth, duckweed etc., root not it is raw in filler, and there is flourishing aerating tissue in vivo, can
Increase the indoor dissolved oxygen of cathode, to improve the oxidation-reduction potential of the device.
The utility model has the advantages that the present invention have the characteristics that it is following:
(1) anaerobic fermentation tank digests biomass carbon source, generates the carbon source for being easier to be utilized by the microorganism, improves
The biodegradability of sewage, therefore can be improved the denitrification effect of artificial swamp microbiological fuel cell.
(2) the wetland plant carbon source placed in artificial swamp anode of microbial fuel cell room is conducive to improve anode generation
Electronics can generate electronics abundant while adding carbon source, improve electricity generation performance, while the wetland plant recycling that will be discarded
It utilizes.
(3) discarded biomass is added in fermentor, can remove the lower tail water of COD, operating cost is lower, " change give up into
It is precious ", there is certain economic benefit.
Detailed description of the invention
Invention is further explained with reference to the accompanying drawing.
Fig. 1 is a kind of method schematic diagram of fermentor hybrid constructed wetland microbiological fuel cell denitrogenation of the invention.
Wherein have: distribution reservoir 1, threeway 2, peristaltic pump 3, motor 4, shaft 5, titanium wire network 6, metal paddle 7, feeding chamber
8, biomass carbon source mixed liquor 9, digestive juice water outlet 10, exhaust outlet 11, blow-down pipe 12, fermentor 13, artificial swamp microorganism
Fuel cell water inlet 14, anaerobic zone 15, anode region 16, wetland plant carbon source area 17, titanium reel 18, anode graphite plate 19, yin
Polar region 20, cathode graphite plate 21, wetland plant 22, overflow weir 23, artificial swamp microbiological fuel cell water outlet 24, detection mouth
25, artificial swamp microbiological fuel cell 26, trimmable resistance case 27, the real-time recorder 28 of voltage.
Specific embodiment
A kind of method of fermentor hybrid constructed wetland microbiological fuel cell denitrogenation of the invention is by distribution reservoir 1, fermentation
Tank 13, artificial swamp microbiological fuel cell 26 form；Pretreated biomass carbon source is added by feeding chamber 8, by by
It is stirred continuously under the shaft 5 that motor 4 drives, metal paddle 7 is connected with shaft 5, and biomass carbon source is filled with anaerobic sludge
Divide mixing, titanium wire network 6 obstructs biomass carbon source and enters water outlet, and the digestive juice after certain residence time is discharged from digestive juice
Mouth 10 flows out, and residue waste water is discharged from blow-down pipe 12, and the gas of generation is discharged from exhaust outlet 11.Digestive juice is from digestive juice water outlet
After 10 outflows, it is uniformly mixed with the tail water in distribution reservoir 1 after being connect by threeway 2 and artificial swamp microorganism is entered by peristaltic pump 3
Fuel cell water inlet 14, water flow carry out ammonification, denitrification by anaerobic zone 15, flow into anode region 16 later, utilize titanium reel
Discarded wetland plant and anode graphite plate 19 are fixed on anode region by 18, and wetland plant carbon source area 17 can provide Additional carbon sources
Further ammonification, denitrification are carried out, subsequently flows into cathodic region 20, sufficient oxygen promotes nitrification, and the NO formed3 -- N is logical
It crosses the microcosmic opposite anaerobic environment formed on cathode graphite plate 21 and carries out denitrification, wetland plant 22 improves cathode graphite plate
21 surface dissolved oxygens.The good waste water of final process flows into overflow weir 21, receives in artificial swamp microbiological fuel cell water outlet 20
The waste water of collection, different layers is collected by detection mouth 23, and is measured.
It is that microorganism mentions that fermentor 13, which digests organic matter difficult to degrade such as solid biomass for the preferable carbon source of biochemical,
For the nutrition needed for surviving, while wetland plant carbon source area 17 provides carbon source, 19 table of anode graphite plate for anode anaerobe
The microorganism in face carries out strong vital movement using these carbon sources, utilizes NO3 -- N is used as electron donor, generates a large amount of electricity
Son, electronics flow through trimmable resistance case 27 by external wire, flow to cathode graphite plate 21.The voltage of generation is real-time by voltage
Recorder 28 records, and passes through formula P=U2The computable power out of/R, from which further follows that power density, coulombic efficiency, by changing
Become the polarization curve that external resistance draws battery, internal resistance is obtained, to evaluate the electricity generation performance of microbiological fuel cell.
Claims (3)
1. a kind of method of fermentor hybrid constructed wetland microbiological fuel cell denitrogenation, it is characterised in that: setting fermentor
(13) and it is inoculated with anaerobic sludge, adds biomass mixed liquor from feeding chamber (8) and enters in tank, be stirred continuously by shaft (5)
Lower generation digestive juice, digestive juice and tail water enter artificial swamp microbiological fuel cell by peristaltic pump (3) after mixing
(26), tail water flows into anaerobic zone (15), anode region (16), wetland plant carbon source area (17), cathodic region (20) and wet from bottom to top
Ground plant (22) finally flows into overflow weir (23) and artificial swamp microbiological fuel cell water outlet (24).
2. a kind of method of fermentor hybrid constructed wetland microbiological fuel cell denitrogenation as claimed in claim 1, special
Sign is: setting titanium wire network (5) in fermentor (13) and enters digestive juice water outlet (10) to prevent carbon source；Setting feeding chamber (8) can be put
Biomass carbon source mixed liquor (9) is set, can be entered in fermentor (13) after mixing.
3. a kind of method of fermentor hybrid constructed wetland microbiological fuel cell denitrogenation as claimed in claim 1, special
Sign is: setting wetland plant carbon source area (17) is located at anode region (16) in artificial swamp microbiological fuel cell (26), will be positive
Package wetland plant is around pole graphite plate (19) to come into full contact with, and surrounds wetland plant with titanium reel (18) to prevent entering cathode
Area (16).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910326081.7A CN109970174A (en) | 2019-04-19 | 2019-04-19 | A kind of method of fermentor hybrid constructed wetland microbiological fuel cell denitrogenation |
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| CN201910326081.7A CN109970174A (en) | 2019-04-19 | 2019-04-19 | A kind of method of fermentor hybrid constructed wetland microbiological fuel cell denitrogenation |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110463637A (en) * | 2019-09-09 | 2019-11-19 | 南通大学 | A kind of rice shrimp makees cultivating system environmental ecology prosthetic device and its application altogether |
| CN111825203A (en) * | 2020-06-08 | 2020-10-27 | 暨南大学 | Artificial wetland sewage treatment device integrating ammoniation, nitrification, denitrification and application thereof |
| CN115140830A (en) * | 2022-07-19 | 2022-10-04 | 厦门理工学院 | Method for degrading ibuprofen by using microbial fuel cell |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004095515A (en) * | 2002-09-04 | 2004-03-25 | Kyoji Kimoto | Polymer electrolyte fuel cell system |
| CN103936161A (en) * | 2014-04-25 | 2014-07-23 | 暨南大学 | Method and system for denitrifying low-carbon high-nitrogen sewage by utilizing plant carbon source-enhanced artificial wetland |
| CN106882872A (en) * | 2017-03-14 | 2017-06-23 | 深圳大学 | A kind of method of utilization artificial swamp tamper strengthened denitrification |
| CN108178320A (en) * | 2018-01-12 | 2018-06-19 | 南京工业大学 | A kind of microbiological fuel cell constructed wetland device and effluent purification method |
-
2019
- 2019-04-19 CN CN201910326081.7A patent/CN109970174A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004095515A (en) * | 2002-09-04 | 2004-03-25 | Kyoji Kimoto | Polymer electrolyte fuel cell system |
| CN103936161A (en) * | 2014-04-25 | 2014-07-23 | 暨南大学 | Method and system for denitrifying low-carbon high-nitrogen sewage by utilizing plant carbon source-enhanced artificial wetland |
| CN106882872A (en) * | 2017-03-14 | 2017-06-23 | 深圳大学 | A kind of method of utilization artificial swamp tamper strengthened denitrification |
| CN108178320A (en) * | 2018-01-12 | 2018-06-19 | 南京工业大学 | A kind of microbiological fuel cell constructed wetland device and effluent purification method |
Non-Patent Citations (1)
| Title |
|---|
| 何培新等, 中国轻工业出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110463637A (en) * | 2019-09-09 | 2019-11-19 | 南通大学 | A kind of rice shrimp makees cultivating system environmental ecology prosthetic device and its application altogether |
| CN110463637B (en) * | 2019-09-09 | 2024-01-16 | 南通大学 | Ecological restoration device for rice and shrimp co-cropping cultivation system environment and application thereof |
| CN111825203A (en) * | 2020-06-08 | 2020-10-27 | 暨南大学 | Artificial wetland sewage treatment device integrating ammoniation, nitrification, denitrification and application thereof |
| CN115140830A (en) * | 2022-07-19 | 2022-10-04 | 厦门理工学院 | Method for degrading ibuprofen by using microbial fuel cell |
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