CN103708622A - Microbial fuel cell constructed wetland for efficiently treating organic sewage - Google Patents
Microbial fuel cell constructed wetland for efficiently treating organic sewage Download PDFInfo
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- CN103708622A CN103708622A CN201410001954.4A CN201410001954A CN103708622A CN 103708622 A CN103708622 A CN 103708622A CN 201410001954 A CN201410001954 A CN 201410001954A CN 103708622 A CN103708622 A CN 103708622A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention provides a microbial fuel cell constructed wetland for efficiently treating organic sewage, belonging to the technical field of sewage treatment and electrochemical coupling. The microbial fuel cell constructed wetland is characterized in that emergent aquatic plants are planted in a multi-medium filter bed of the constructed wetland and multiple groups of aerator pipes and exhaust pipes are arranged, an inflowing water distributing region and an outflowing water collecting region are arranged at two sides of the multi-medium filter bed and are respectively connected with a water supplying system, a reflowing system and a draining system, the constructed wetland is divided into an upper layer and a lower layer by bentonite, the upper layer and the lower layer are respectively provided with at least one graphite felt, the lower layer is an anaerobic zone (anode chamber) which generates electrons and protons through oxidizing organic matters by microorganisms, the upper layer is an aerobic zone (cathode chamber) which is supplied with oxygen by plants and the aerator pipes, the electrons are transmitted to a cathode through an external circuit to form a current, and a voltage is generated due to difference of redox potentials of the cathode chamber/anode chamber, so that the microbial fuel cell constructed wetland is formed. The microbial fuel cell constructed wetland is capable of simultaneously removing organic matters and generating electric energy, is good in treatment effect and low in operation and maintenance cost, and is energy-saving and environment-friendly.
Description
Technical field
The microbiological fuel cell artificial swamp that the present invention relates to a kind of efficient processing organic sewage, belongs to Artificial Wetland Techniques field.
Background technology
At present, artificial swamp is as the water technology of a kind of low cost, less energy-consumption and obtain people's extensive concern and research.Thereby artificial swamp is reached the object of removing water pollutant by physics, chemistry and biological synergy by wetland plant, medium filter bed and microorganism.As horizontal drowned flow artificial wet land upper strata, by plant root, secrete oxygen and form aerobic zone, contrary lower floor is mainly rendered as anaerobic state and forms anaerobic zone, due to the difference of up/down layer redox potential, so artificial swamp has the potential quality that is built into microbiological fuel cell constructed wetland device by transforming its structure.
The main Shi of microbiological fuel cell anolyte compartment, utilize the active microorganism of electrogenesis to produce electronics, proton and other product by the organism transforming in water, electronics is passed to cathode compartment by external circuit and forms electric current, and proton is passed to negative electrode by proton exchange membrane and is combined generation water with oxygen.Microbiological fuel cell produces electric energy by the organism of processing in oxidizing water, and generates pure water.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of microbiological fuel cell artificial swamp of efficient processing organic sewage.
In order to solve the problems of the technologies described above, technical scheme of the present invention has been to provide a kind of microbiological fuel cell artificial swamp of efficient processing organic sewage, it is characterized in that: in the packing medium filter bed of artificial swamp, plant emergent and be furnished with many group aeration tubes and vapor pipe, in medium filter bed both sides, be respectively equipped with and become a mandarin cloth pool and go out adfluxion pool, become a mandarin cloth pool with go out adfluxion pool and be connected respectively waterworks and water exhaust system, cloth pool and go out between adfluxion pool to be connected with return-flow system becomes a mandarin, by bentonite bed, multimedium filter bed is divided into aerobic zone, upper strata and lower floor anaerobic zone, in aerobic zone, upper strata and lower floor anaerobic zone, arrange respectively at least one graphite felt, organic sewage enters lower floor anaerobic zone via waterworks and the cloth pool that becomes a mandarin, as anolyte compartment, the organism in microbial transformation organic sewage produces electronics and proton in lower floor anaerobic zone, electronics is delivered to as the graphite felt in the aerobic zone, upper strata of cathode compartment and is formed electric current by external circuit via the graphite felt of lower floor anaerobic zone, proton sees through bentonite bed and imports aerobic zone, upper strata into, for discharging the inlet end of the vapor pipe of the gas that the contained gas of water and anaerobic process produce, stretch in lower floor anaerobic zone, aerobic zone, upper strata as cathode compartment by emergent group and aeration tube oxygen supply, the water outlet of lower floor anaerobic zone is through going out adfluxion pool, return-flow system and the cloth pool that becomes a mandarin enter aerobic zone, upper strata, under aerobic microbiological effect, will after the organic pollutant degradation in the water inlet from lower floor anaerobic zone, certainly go out the water outlet of adfluxion pool to water exhaust system.
Preferably, described bentonite bed is positioned at described artificial swamp middle part and covers completely.
Preferably, described external circuit comprises the connected wire of described graphite felt, is connected in series load, at load two ends shunt circuit monitoring means or power output device between the graphite felt in the graphite felt Yu lower floor anaerobic zone in aerobic zone, upper strata.
Preferably, the multi-direction even punching of pvc pipe that described aeration tube is 5cm by diameter is made, its approximately 1/m
2be arranged in aerobic zone, described upper strata.
Preferably, in bottom, multi-direction even punching, top arrange valve and make the pvc pipe that described vapor pipe is 5cm by diameter, its approximately 1/m
2be arranged in described lower floor anaerobic zone.
Preferably, described emergent group is by reed 10-20 strain/m
2or Canna generalis Bailey 3-4 strain/m
2layout forms, and its Root Distribution is in aerobic zone, described upper strata.
Preferably, described in, become a mandarin cloth pool with described in go out adfluxion pool and form through PVC porous plate is fixing by the gravel filling of the about 9-15mm of particle diameter.
Preferably, described medium filter bed is comprised of gravel filling and the sand of the about 5-8mm of particle diameter.
The present invention produces electronics and proton in the lower floor anaerobic zone (anolyte compartment) of artificial swamp by microbial transformation organism for the active microorganism of electrogenesis by the structure of transformation artificial swamp, upper strata is that aerobic zone (cathode compartment) is by plant and aeration tube oxygen supply, electronics is delivered to negative electrode by external circuit and forms electric current, thereby because the difference of the moon/anolyte compartment redox potential produces voltage formation microbiological fuel cell artificial swamp.
The beneficial effect that adopts technique scheme to produce is: the organism transforming in water by artificial swamp lower floor anaerobic zone (anolyte compartment) produces electronics, by external circuit, be passed to aerobic zone, upper strata (cathode compartment) and form electric current, due to the difference generation voltage of the moon/anolyte compartment redox potential.Microbiological fuel cell artificial swamp produces electric energy in organic pollutant in efficient processing water.
Accompanying drawing explanation
Fig. 1 is device schematic diagram of the present invention;
Fig. 2 is vertical view of the present invention;
Fig. 3 is water distributor figure of the present invention;
Fig. 4 is PVC aeration tube figure of the present invention;
Fig. 5 is PVC porous plate figure of the present invention;
Fig. 6 is PVC vapor pipe figure of the present invention.
In figure: 1, distributing well 2, butterfly valve 3, grid 4, working shaft 5, valve 6, wilkinite 7, return line 8, microbiological fuel cell constructed wetland device 9, emergent 10, aeration tube 11, vapor pipe 12, aerobic zone, upper strata filler 13 aerobic zone, upper strata (cathode compartment) 14-1, cloth pool 14-2 becomes a mandarin, go out adfluxion pool 15, outlet sump 16, wire 17, load 18, circuit monitoring device 19, reflux pump 20, anode graphite felt 21, lower floor's anaerobic zone filler 22, lower floor anaerobic zone (anolyte compartment) 23, negative electrode graphite felt 24, PVC porous plate 25-1 and 25-2, water distributor.
Embodiment
For the present invention is become apparent, hereby with preferred embodiment, and coordinate accompanying drawing to be described in detail below.
As shown in Fig. 1 and 2, the invention provides a kind of microbiological fuel cell artificial swamp of efficient processing organic sewage, comprise artificial swamp 8, in the multimedium filter bed of artificial swamp 8, plant emergent group 9 and be furnished with many group aeration tubes 10 and vapor pipe 11.The bentonite bed 6 that about 2cm is thick is positioned at artificial swamp 8 middle parts and covers completely, by bentonite bed 6, multimedium filter bed is divided into aerobic zone, upper strata 13Ji lower floor anaerobic zone 22.Add with the mud that can produce electronics microorganism lower floor's anaerobic zone filler 21 bottoms in lower floor anaerobic zone 22, arranges respectively the negative electrode graphite felt 23 of polylith series connection and the anode graphite felt 20 of polylith series connection in the middle of lower floor's anaerobic zone filler 21 of the aerobic zone, upper strata of aerobic zone, upper strata 13 filler 12Ji lower floor anaerobic zone 22.By wire 16, negative electrode graphite felt 23 is connected in series with anode graphite felt 20, meanwhile, between negative electrode graphite felt 23 and anode graphite felt 20, is connected in series load 17, at the two ends of load 17 shunt circuit monitoring device 18.
The multimedium filter bed of artificial swamp 8 is comprised of gravel filling and the sand of the about 5-8mm of particle diameter, in its both sides, be respectively equipped with and become a mandarin cloth pool 14-1 and go out adfluxion pool 14-2, in conjunction with Fig. 3 and Fig. 5, become a mandarin cloth pool 14-1 with go out adfluxion pool 14-2 and form through PVC porous plate 24 is fixing by the gravel filling of the about 9-15mm of particle diameter.Become a mandarin cloth pool 14-1 with go out adfluxion pool 14-2 and be connected respectively waterworks and water exhaust system, cloth pool 14-1 and go out between the 14-2 of adfluxion pool to be connected with return-flow system becomes a mandarin.
During use, the organic sewage in the distributing well 1 of waterworks processes through grid 3 the lower floor anaerobic zone 22 that is promoted to artificial swamp 8 by working shaft 4, by water distributor 25-1, is flow to into the cloth pool 14-1 uniformly distributing that becomes a mandarin to lower floor anaerobic zone 22.In water inlet process, must open the valve of vapor pipe 11, to discharge contained gas in water and gas that anaerobic process were produced, wait entering water, close when complete.Organic sewage organism in microbiological oxidation organic sewage in the anaerobic zone, upper strata 22 as anolyte compartment produces electronics, proton and other product, electronics is passed to negative electrode graphite felt 23 via anode graphite felt 20, wire 16 and load 17 and forms electric current, this process can be carried out by circuit monitoring device 18 Real-Time Monitoring of circuital current, voltage, and proton sees through bentonite bed 6 and reaches the aerobic zone, upper strata 13 as cathode compartment.The water outlet of lower floor anaerobic zone 22 goes out after the 14-2 of adfluxion pool, by the reflux pump 19 of return-flow system enter return line 7, water distributor 25-2 becomes a mandarin the 14-1 uniformly distributing of cloth pool to aerobic zone, upper strata 13.By the oxygen being provided by emergent 9 and aeration tube 10 in aerobic zone, upper strata 13 with the proton from lower floor anaerobic zone 22 by the organic pollutant degradation that may contain in the water inlet from lower floor anaerobic zone 22, and via the pond 15 that goes out adfluxion pool 14-2 and flow into outlet system.
Claims (8)
1. an efficient microbiological fuel cell artificial swamp of processing organic sewage, it is characterized in that: comprise artificial swamp (8), in the multimedium filter bed of artificial swamp (8), plant emergent group (9) and be furnished with many group aeration tubes (10) and vapor pipe (11), in multimedium filter bed both sides, be respectively equipped with and become a mandarin cloth pool (14-1) and go out adfluxion pool (14-2), become a mandarin cloth pool (14-1) with go out adfluxion pool (14-2) and be connected respectively waterworks and water exhaust system, cloth pool (14-1) and go out between adfluxion pool (14-2) to be connected with return-flow system becomes a mandarin, by bentonite bed (6), multimedium filter bed is divided into aerobic zone, upper strata (13) and lower floor anaerobic zone (22), in aerobic zone, upper strata (13) and lower floor anaerobic zone (22), arrange respectively at least one graphite felt, organic sewage enters lower floor anaerobic zone (22) via waterworks and the cloth pool (14-1) that becomes a mandarin, as anolyte compartment, the organism in microbiological oxidation organic sewage produces electronics and proton in lower floor anaerobic zone (22), electronics is delivered to as the graphite felt in the aerobic zone, upper strata (13) of cathode compartment and is formed electric current by external circuit via the graphite felt of lower floor anaerobic zone (22), proton sees through bentonite bed (6) and imports aerobic zone, upper strata (13) into, for discharging the inlet end of the vapor pipe (11) of the gas that the contained gas of water and anaerobic process produce, stretch in lower floor anaerobic zone (22), aerobic zone, upper strata (13) as cathode compartment by emergent group (9) and aeration tube (10) oxygen supply, the water outlet of lower floor anaerobic zone (22) is through going out adfluxion pool (14-2), return-flow system and the cloth pool (14-1) that becomes a mandarin enter aerobic zone, upper strata (13), by oxygen, will after the organic pollutant degradation in the water inlet from lower floor anaerobic zone (22), certainly go out adfluxion pool (14-2) water outlet to water exhaust system.
2. the microbiological fuel cell artificial swamp of a kind of efficient processing organic sewage as claimed in claim 1, is characterized in that: described bentonite bed (6) is positioned at described artificial swamp (8) middle part and covers completely.
3. the microbiological fuel cell artificial swamp of a kind of efficient processing organic sewage as claimed in claim 1, it is characterized in that: described external circuit comprises the connected wire (16) of described graphite felt, in the graphite felt that is positioned at aerobic zone, upper strata (13), be connected in series load (17) with being positioned between the graphite felt of lower floor anaerobic zone (22), at load (17) two ends shunt circuit monitoring means (18) or power output device.
4. the microbiological fuel cell artificial swamp of a kind of efficient processing organic sewage as claimed in claim 1, is characterized in that: the multi-direction even punching of pvc pipe that described aeration tube (10) is 5cm by diameter is made, its approximately 1/m
2be arranged in aerobic zone, described upper strata (13).
5. the microbiological fuel cell artificial swamp of a kind of efficient processing organic sewage as claimed in claim 1, it is characterized in that: in bottom, multi-direction even punching, top arrange valve (5) and makes the pvc pipe that described vapor pipe (11) is 5cm by diameter, its approximately 1/m
2be arranged in described lower floor anaerobic zone (22).
6. the microbiological fuel cell artificial swamp of a kind of efficient processing organic sewage as claimed in claim 1, is characterized in that: described emergent group (9) is by reed 10-20 strain/m
2or Canna generalis Bailey 3-4 strain/m
2layout forms, and its Root Distribution is in aerobic zone, described upper strata (13).
7. the microbiological fuel cell artificial swamp of a kind of efficient processing organic sewage as claimed in claim 1, is characterized in that: described in become a mandarin cloth pool (14-1) with described in go out adfluxion pool (14-2) and form through PVC porous plate (24) is fixing by the gravel filling of the about 9-15mm of particle diameter.
8. the microbiological fuel cell artificial swamp of a kind of efficient processing organic sewage as claimed in claim 1, is characterized in that: described multimedium filter bed is comprised of gravel filling and the sand of the about 5-8mm of particle diameter.
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|---|---|---|---|
| CN201410001954.4A CN103708622B (en) | 2014-01-02 | 2014-01-02 | Microbial fuel cell constructed wetland for efficiently treating organic sewage |
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104086056A (en) * | 2014-08-01 | 2014-10-08 | 安庆庆荣企业管理咨询有限责任公司 | Wastewater treatment device |
| CN104086058A (en) * | 2014-08-01 | 2014-10-08 | 安庆庆荣企业管理咨询有限责任公司 | Aerobiotic/anaerobic artificial wetland system |
| CN104086059A (en) * | 2014-08-01 | 2014-10-08 | 安庆庆荣企业管理咨询有限责任公司 | Constructed wetland system |
| CN104098180A (en) * | 2014-08-01 | 2014-10-15 | 方帅 | Aerobic anaerobic immobilization microbe sewage treatment device |
| CN104118942A (en) * | 2014-08-01 | 2014-10-29 | 方帅 | Sewage treatment process |
| CN105000667A (en) * | 2015-06-05 | 2015-10-28 | 南开大学 | Constructed wetland and microbial fuel cell combined sewage treatment system |
| CN105024089A (en) * | 2015-06-15 | 2015-11-04 | 中国科学院广州能源研究所 | Microbial fuel cell artificial wetland device for sewage treatment and power supply to wetland |
| CN105236584A (en) * | 2015-11-04 | 2016-01-13 | 中国科学院水生生物研究所 | Method and apparatus for intensifying denitrification in coupling microorganism electrolytic tank of upstream vertical flow artificial wetland |
| CN105502672A (en) * | 2016-01-13 | 2016-04-20 | 桂林理工大学 | Side micro-aerobic microbial fuel cell constructed wetland water purification method |
| CN105502832A (en) * | 2016-01-13 | 2016-04-20 | 桂林理工大学 | Micro-aeration microbial fuel cell artificial wetland water purification method |
| CN105540860A (en) * | 2016-01-13 | 2016-05-04 | 桂林理工大学 | Microbial fuel cell artificial wetland electrogenesis in-situ utilization water purification method |
| CN106745772A (en) * | 2016-12-29 | 2017-05-31 | 东南大学 | Row array type microbiological fuel cell artificial marsh sewage treatment system |
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| CN107285488A (en) * | 2017-08-24 | 2017-10-24 | 环境保护部南京环境科学研究所 | A kind of device and application method that black-odor riverway is administered using intensive aeration artificial swamp coupling technique dystopy |
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| CN110294525B (en) * | 2019-06-17 | 2020-12-01 | 河海大学 | Nitrogen and phosphorus removal microbial fuel cell |
| CN111395258A (en) * | 2020-03-13 | 2020-07-10 | 南京市市政设计研究院有限责任公司 | Ecological bank protection area of river bank of coupling microbial fuel cell |
| CN113735262A (en) * | 2021-08-16 | 2021-12-03 | 天津大学 | Synchronous denitrification electrogenesis microbial fuel cell type upflow vertical flow constructed wetland equipment |
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