CN106746230A - Based on electric fenton sewage processing system and processing method that row array type wetland microbiological fuel cell is powered - Google Patents
Based on electric fenton sewage processing system and processing method that row array type wetland microbiological fuel cell is powered Download PDFInfo
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- CN106746230A CN106746230A CN201611240733.8A CN201611240733A CN106746230A CN 106746230 A CN106746230 A CN 106746230A CN 201611240733 A CN201611240733 A CN 201611240733A CN 106746230 A CN106746230 A CN 106746230A
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
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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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/16—Biochemical fuel cells, i.e. cells in which microorganisms function as catalysts
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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
- C02F2101/308—Dyes; Colorants; Fluorescent agents
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- 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
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Abstract
The invention discloses a kind of electric fenton sewage processing system and processing method powered based on row array type wetland microbiological fuel cell.System includes：For the nano iron-carbon micro-electrolytic reaction zone pre-processed to sewage；For the electric Fenton system response area processed nano iron-carbon micro-electrolytic reaction zone water outlet；For the row array type wetland microbiological fuel cell for being processed electric Fenton system response area water outlet and being powered to it；Wherein, described row array type wetland microbiological fuel cell is the wetland microbiological fuel cell group that multiple wetland microbiological fuel cells are connected to form；Corresponding anode, the negative electrode connection respectively by wire with electric Fenton system response area of negative electrode, the anode of wetland microbiological fuel cell group.Present invention also offers sewage water treatment method.The synergy enhancing degradation effect that the present invention passes through whole system, is a kind of water technology of energy-conserving and environment-protective without medicament is added without external energy.
Description
Technical field
The invention belongs to water pollution control and water-treatment technology field, and in particular to one kind is based on row array type wetland microorganism
The electric Fenton water treatment system and method for fuel cell high efficiency power.
Background technology
The characteristics of waste water from dyestuff has complicated component, colourity depth, salt content high, bio-refractory, to public health security
Threaten, its environmental safety effect increasingly attracts attention, the research to its handling process also turns into urgent problem.
Biological electro-fenton process is supplied to electric Fenton system in-situ preparation H by additional electric energy2O2And Fe2+Dye molecule to difficult degradation enters
Row oxidation, improves wastewater biodegradability.
There are some researches show nano iron-carbon micro-electrolytic technology can realize chain rupture to larger molecular organicses, color development and auxochromes
The decolouring reduction of group, can effectively improve the biodegradability of waste water, but it is not thorough to hardly degraded organic substance treatment.Compare simultaneously
Traditional rail carbon micro-electrolytic processes are compared, and nano iron-carbon micro-electrolytic technology can efficiently solve system during iron-carbon micro-electrolysis
It is easily hardened, the problem that treatment effeciency declines.
Fenton technology is preferable to the treatment effect of Recalcitrant chemicals, but needs to consume a large amount of Fe2+And H2O2It is relatively costly.
Biological electro-fenton process turns into the study hotspot of current water-treatment technology field as a kind of efficient water technology.With it is existing
Other Acid Dye Wastewater handling process are compared, and biological electro-fenton process can be used to process COD and salt content toxic waste higher.
There are some researches show with biological electricity Fenton method Acid Dye Wastewater Treatment, its advantage major embodiment is in the following areas：Environment friend
Good, device simple, high degree of automation.The Fe that electric Fenton system is produced with electrochemical reaction2+And H2O2As Fenton reagent
The OH with strong oxidizing property produced in constant source (2) electrolytic process helps to break the ring-type knot of acid dyes macromolecular
Structure, improves the biodegradability of Acid Dye Wastewater.(3) easy control of reaction conditions, can complete typically under normal temperature condition, can
Other handling process can also be coupled with individually treatment workable.But biological electricity Fenton system needs a large amount of electricity of consumption
Can, which has limited the practical application of bioelectrochemical system.
Artificial swamp has been determined for the disposal ability of waste water, by artificial swamp and microbiological fuel cell coupling
Close, the characteristics of make full use of artificial swamp and microbiological fuel cell each, further improve the sewage treatment capacity of wetland, no
Can be only used for purifying sewage, while can harvest electric energy supplies other technique unit electricity consumptions.But current artificial swamp-micro- life
Thing fuel cell has that internal resistance is larger, output voltage and the relatively low defect of power, how further to improve the output voltage of battery,
Improve its practical performance and also need to further exploration.
There is not the report that above technology combines also at present.
The content of the invention
Goal of the invention：For the defect and deficiency that overcome prior art to exist, deposited for existing Acid Dye Wastewater Treatment
Problem, the invention provides a kind of electric fenton sewage processing system powered based on row array type wetland microbiological fuel cell
And processing method, make full use of iron-carbon micro-electrolysis-electricity Fenton system to improve the biodegradability energy of waste water, so as to improve artificial swamp
The electricity generation performance of microbiological fuel cell, and improve output voltage by the way that artificial swamp microbiological fuel cell is carried out into connection in series-parallel
The electric Fenton system of supply, a stepping water quality of going forward side by side, the final degradation effect for improving acid dyes.
Technical scheme：
The electric fenton sewage processing system powered based on row array type wetland microbiological fuel cell of the present invention, bag
Include：
For the nano iron-carbon micro-electrolytic reaction zone pre-processed to sewage；
For the electric Fenton system response area processed nano iron-carbon micro-electrolytic reaction zone water outlet；
The row array type wetland Microbial fuel for being processed for electric Fenton system response area water outlet and being powered to it
Battery；
Described nano iron-carbon micro-electrolytic reaction zone, electro-Fenton reaction area, row array type wetland microbiological fuel cell is successively
It is connected；Wherein, described row array type wetland microbiological fuel cell be by by multiple wetland microbiological fuel cells be connected shape
Into wetland microbiological fuel cell group；Negative electrode, the anode of wetland microbiological fuel cell group are respectively by wire and electric Fenton
The corresponding anode in system response area, negative electrode connection.
Above-mentioned multiple wetland microbiological fuel cells are connected the connection of connection and circuit including water route.
In described wetland microbiological fuel cell group, arranged by the way that wetland microbiological fuel cell row array is arranged into N into M, its
Middle M >=2, N >=2, the wetland microbiological fuel cell of same row forms wetland microbiological fuel cell subgroup by conductor in parallel,
All of wetland microbiological fuel cell subgroup forms described wetland microbiological fuel cell group by wired in series.Further
, 2≤M≤6,2≤N≤6.
Preferably, all of wetland microbiological fuel cell subgroup is connected with wire to be formed by way of being connected every row
Described wetland microbiological fuel cell group.
The water outlet in the electric Fenton system response area by it is a plurality of enter water passage flow into row array type wetland Microbial fuel electricity
Pond, every is entered the wetland microbiological fuel cell number that water passage flows through and is no more than 12.
Collecting-tank, the micro- electricity of nano iron-carbon are provided between the nano iron-carbon micro-electrolytic reaction zone and electro-Fenton reaction area
The bottom for solving reaction zone carries the delivery port of drop in water inlet, the oriented collecting-tank of top tape, the electro-Fenton reaction area
Bottom carry the flow inlet that is connected with the collecting-tank.
Described nano iron-carbon micro-electrolytic reaction zone includes reaction pond body, is divided into by water distributing plate in the reaction tank body
The packing area arranged up and down and inhalant region, described inhalant region carry water inlet, and packing area is filled out filled with nano iron-carbon micro-electrolytic
Material, described filler is provided with downflow weir at the top of area.
Present invention also offers a kind of sewage water treatment method, including：
(1) sewage is passed through into nano iron-carbon micro-electrolytic reaction zone to be pre-processed；
(2) pretreated water outlet is passed through electric Fenton system response area and is processed；
(3) water outlet after step (2) treatment is passed through wetland microbiological fuel cell and is degraded, wetland Microbial fuel electricity
The electric Fenton system response area of electric energy supply that pond produces.
In sewage water treatment method, wetland microbiological fuel cell is multiple, and row array is arranged into M rows N, wherein M >=2, N >=2, together
The wetland microbiological fuel cell of one row forms wetland microbiological fuel cell subgroup, all of micro- life of wetland by conductor in parallel
Thing fuel cell subgroup forms wetland microbiological fuel cell group by wired in series.
In sewage water treatment method, the water outlet in the electric Fenton system response area is wet into row array type by multipoint water feeding mode
Geomicrobes fuel cell, the wetland microbiological fuel cell number that every water route flows through is no more than 12.
In sewage water treatment method, the water outlet of nano iron-carbon micro-electrolytic reaction zone enters electric Fenton system response after falling
Area, it is water body oxygenation to use the mode of drop water aeration.
The sewage that the present invention is directed to is acid waste water, is specifically as follows the waste water containing acid dyes, such as faintly acid it is gorgeous it is blue,
RAW, acid anthraquinone blue, Acid Red B etc., pH is between 4-6.
Compared with prior art, beneficial effects of the present invention are：
Nano iron-carbon micro-electrolytic, electric Fenton, wetland microbiological fuel cell multiple technologies are optimized combination by the present invention,
Prominent group effect.By iron-carbon micro-electrolysis-electricity Fenton system in combination technique to poisonous and hazardous dirt in weak acid dye waste water
Dye thing is pre-processed, and the biodegradability for improving waste water strengthens the electricity generation performance of row array type wetland microbiological fuel cell, and profit
The electric energy produced with row array type wetland microbiological fuel cell is electric Fenton system power supply, whole device without external energy,
Chemical agent need not be added, decolouring, removal pollutant work well, and are a kind of water technologies of energy-conservation.
The more traditional weak acid dye waste water treatment process of the present invention is compared, nano iron-carbon micro-electrolytic and electric Fenton system group
Close technique and enhance the pretreating effect of waste water from dyestuff and substantially increase the biodegradability energy of waste water, and nano iron-carbon micro-electrolytic is
Electric Fenton system provides Fe2+Source, reduces the hardened problem of filler in traditional iron-carbon micro-electrolysis.Water outlet is provided by drop water aeration
Dissolved oxygen, the electric Fenton system of supply, whole process provides matter and energy without extraneous.Using row array type wetland Microbial fuel
Battery plays depth removal, and the overall removal effect of system is more excellent.
Artificial swamp microbiological fuel cell is carried out connection in series-parallel row array by the present invention, by will effectively prevent with row's cell parallel
The short circuit of battery pack is stopped, by the output voltage that some row's battery strings are joined the system that substantially increases.By entering battery
Water outlet is connected can be greatly improved the degradation efficiency of pollutant, obtain the effect of deep layer purification.
In the present invention, row array type wetland microbiological fuel cell not only to the removal effect of pollutant more preferably, and can be with
Produce electric energy.
Present system is simple to operate, and labour cost is low, it is possible to achieve Automated condtrol, is adapted to treatment and contains weak acid dye
Waste water.
Brief description of the drawings
Fig. 1 is sewage treatment process figure of the present invention；
Fig. 2 is the structural representation of the electric Fenton water treatment system powered based on row array type wetland microbiological fuel cell；
Fig. 3 is that the water inlet of row array type wetland microbiological fuel cell in Fig. 2 flows to schematic diagram；
Fig. 4 is row array type wetland microbiological fuel cell circuit connection diagram in Fig. 2；
1- nano iron-carbon micro-electrolytic reaction zones, 101- reaction pond bodies, 102- water distributing plates, 103- packing areas, 104- inhalant regions,
105- water inlets, 106- downflow weirs, 107- barrier plates, 2- electricity Fenton system responses area, 201- flow inlets, 202- three phase separations
Device, 203- water exports, 204- anodes, 205- negative electrodes, 3- row array type wetland microbiological fuel cells, the combustion of 301- wetlands microorganism
Material battery, 302- impervious barriers, 303- anode packing layers, the yellow sands of 304- first layer, 305- negative electrode packing layers, 306- wetland plants
Layer, the yellow sands of 308- second layer, 4- collecting-tanks, 5- regulating reservoirs.
Specific embodiment
With reference to specific embodiment, the present invention is furture elucidated, it should be understood that these embodiments are merely to illustrate the present invention
Rather than limitation the scope of the present invention, after the present invention has been read, those skilled in the art are to various equivalences of the invention
The modification of form falls within the application appended claims limited range.
Such as Fig. 1, sewage water treatment method of the invention includes：
(1) sewage is passed through into nano iron-carbon micro-electrolytic reaction zone to be pre-processed；
(2) pretreated water outlet is passed through electric Fenton system response area and is processed；
(3) water outlet after step (2) treatment is passed through wetland microbiological fuel cell and is degraded, wetland Microbial fuel electricity
The electric Fenton system response area of electric energy supply that pond produces.
In step (1), the sewage that the present invention is directed to is faintly acid waste water, is specifically as follows weak acid dye waste water.Weak acid
After property waste water from dyestuff is passed through nano iron-carbon micro-electrolytic reaction zone, dyestuff macromolecular carries out initial breakdown in the area, realizes macromolecular
The chain rupture of organic matter and color development and wish the reduction of color base group so as to improve the biodegradability of waste water, and the absorption for passing through activated carbon
Remove COD, the colourity of waste water, the pretreated water for obtaining.
In step (2), the water outlet of nano iron-carbon micro-electrolytic reaction zone enter after falling electric Fenton system response area (or
It is electro-Fenton reaction area), water outlet is fully contacted with air in dropping process and is mixed into a large amount of oxygen, so as to improve electric Fenton system
The water treatment efficiency of reaction zone.In through the pretreated weak acid dye waste water of nano iron-carbon micro-electrolytic reaction zone, difficult degradation has
The part chain rupture of machine thing, open loop obtain the organic matter of small molecule, and the Fe of reaction generation is contained in water outlet2+, electric Fenton system is anti-
Answer area's anode generation Fe2+, O2H must be electronically generated in negative electrode2O2, electric Fenton system response area is in situ to produce Fe2+And H2O2Hardly possible is dropped
The dye molecule of solution further carries out advanced oxidation, and it is organic that there is simultaneity factor electrode adsorption, electric coagulation further to degrade
Thing, generates the compound of small molecule, carboxylic-acid substance's generation CO2Overflow.Now poisonous and hazardous larger molecular organicses become substantially
It is the organic matter being easily degraded by microorganisms, obtains after-treatment water.
In step (3), intermediate product and small molecule containing the dye molecule being largely degraded in the water outlet of step (2)
Organic matter, wastewater biodegradability is high.The water outlet of step (2) is passed through after wetland microbiological fuel cell is degraded and discharges, wet
The electric energy that geomicrobes fuel cell is produced is powered to electric Fenton system response area.By iron-carbon micro-electrolysis and electric Fenton system institute
The a large amount of micromolecular compounds for being formed can be utilized rapidly by electricity production bacterium, and this will greatly improve the defeated of wetland microbiological fuel cell
Go out power.In addition, the filtering crown_interception of wetland can also be retained to pollutant.The side of high density plant one of wetland plantation
Face is adsorbed using its flourishing root system to the pollutant in water, while plant produces a large amount of oxygen using photosynthesis, makes
The negative electrode for obtaining microbiological fuel cell is in oxygen-enriched state, is conducive to improving its electricity generation performance.
In the present invention, wetland microbiological fuel cell is multiple, and row array is arranged into M rows N, wherein M >=2, N >=2, same row's
Wetland microbiological fuel cell forms wetland microbiological fuel cell subgroup by conductor in parallel, then by every the side of row's series connection
Formula wire connects all of wetland microbiological fuel cell subgroup to form wetland microbiological fuel cell group, the electric energy of generation
The electric Fenton system response area of supply, the voltage of the electric Fenton system of increase, forms benign cycle.
The water outlet in above-mentioned electric Fenton system response area enters row array type wetland microbiological fuel cell by a plurality of water route, often
The wetland microbiological fuel cell number that bar water route flows through is no more than 12, to ensure the electricity production of wetland microbiological fuel cell
Energy.
Such as Fig. 2, the present invention is included based on the electric Fenton water treatment system that row array type wetland microbiological fuel cell is powered：
For the nano iron-carbon micro-electrolytic reaction zone 1 pre-processed to sewage；
For the electric Fenton system response area 2 processed nano iron-carbon micro-electrolytic reaction zone water outlet；
The row array type wetland Microbial fuel for being processed for electric Fenton system response area water outlet and being powered to it
Battery 3；
Collecting-tank 4 between nano iron-carbon micro-electrolytic reaction zone 1 and electric Fenton system response area 2；
Regulating reservoir 5 between electric Fenton system response area 2 and row array type wetland microbiological fuel cell 3.
Nano iron-carbon micro-electrolytic reaction zone 1 includes reaction pond body 101, is split by water distributing plate 102 in the reaction pond body 101
Into the packing area 103 and inhalant region 104 arranged up and down, water distributing plate can make current more uniform.The side wall of inhalant region 104 is provided with
Water inlet 105, packing area is filled with nano iron-carbon micro-electrolytic microballoon, and nano iron-carbon micro-electrolytic microballoon can use of the prior art
Product, generally iron powder and carbon dust mass ratio 1:1 and it is fixed in bentonite to react and is formed.The top of packing area 103
It is provided with downflow weir 106.Water outlet after the treatment of nano iron-carbon micro-electrolytic reaction zone 1 is discharged by downflow weir overflow, is dropped to and is catchmented
In pond 4.To prevent the loss of filler, packing area is additionally provided with barrier plate 107 with holes above filler, and (barrier plate sets micro-
Hole, the diameter of micropore is smaller than the diameter of filtrate).
In the present invention, electric Fenton system response area 2 uses existing structure, such as the selectable structure of one of which but simultaneously not only
It is limited to：The lower sides in electric Fenton system response area 2 carry flow inlet 201, and flow inlet 201 is connected with collecting-tank 4.Electricity
The top in Fenton system response area 2 is provided with three phase separator 202 adjacent to water exit position, facilitates the three phase separation of gas, liquid, solid, warp
Separate liquid water is crossed to be overflowed by the water export 203 that the electric top of Fenton system response area 2 is set.Electric Fenton system response area
2 anode 204 is stainless (steel) wire, and negative electrode 205 is carbon felt, and electric Fenton system power control is in 0.5-1.2mA.Electric Fenton system is anti-
Water after answering area 2 to process is fallen into regulating reservoir 5 by water export 203.
Row array type wetland microbiological fuel cell 3 (or row array type artificial swamp microbiological fuel cell) is multiple wetlands
The wetland microbiological fuel cell group that microbiological fuel cell 301 is connected to form.It is single in wetland microbiological fuel cell group
Wetland microbiological fuel cell (or artificial swamp microbiological fuel cell) uses existing structure, and such as one of which may be selected
Structure it is not limited to：It is yellow that wetland microbiological fuel cell 301 is respectively equipped with impervious barrier 302, first successively from the bottom to top
Sand bed 304, the yellow sand of anode packing layer (filling activated carbon) 303, second layer 308 are negative electrode packing layer (filling activated carbon) 305, wet
(the well developed root system plant such as plantation canna or reed, planting density reaches 25-30 plants/m to ground layer of plants2) 306, outside anode and cathode
Connect wire and carry out insulation processing.Wetland microbiological fuel cell utilizes artificial swamp lower floor anaerobic environment, and adds activated carbon
Anode material is formed, cathode material is formed using the oxygen and activated carbon of plant root exudation.Each microbiological fuel cell
Water inlet is located at the first yellow sand layer, and delivery port is located at right hand top negative electrode packing layer.
In wetland microbiological fuel cell group, wetland microbiological fuel cell row array is arranged into M rows N, wherein M >=2, N >=2.
For circuit connection, the wetland microbiological fuel cell of same row forms wetland microbiological fuel cell by conductor in parallel
Group, all of wetland microbiological fuel cell subgroup passes through wired in series, during series connection, will with wire by way of every row's series connection
All of wetland microbiological fuel cell subgroup connects to form above-mentioned wetland microbiological fuel cell group, such arrangement
The output voltage of row array type wetland microbiological fuel cell can be effectively improved and prevent adjacent wetland microbiological fuel cell from sending out
The possibility of raw short circuit.Negative electrode, the anode of wetland microbiological fuel cell group pass through wire and corresponding electric Fenton system respectively
The anode of reaction zone, negative electrode connection.For water route connection, the water outlet in electric Fenton system response area by it is a plurality of enter water passage enter
Row array type wetland microbiological fuel cell, i.e., flow through row array type wetland microbiological fuel cell, every water inlet by a plurality of water route
The wetland microbiological fuel cell number that pipe is flowed through is no more than 12.
It is specifically described by taking the wetland microbiological fuel cell group of 6 × 4 row arrays as an example, Fig. 3 shows specific row array
Mode and water inlet flow direction, wetland microbiological fuel cell group are arranged to 6 rows, respectively A, B, C, D, E, F altogether, and often discharge puts 4
Wetland microbiological fuel cell.The water outlet regulating reservoir in electric Fenton system response area, the water in regulating reservoir is clicked through by two water inlets
Enter row array type microbiological fuel cell, one of them is in wetland microbiological fuel cell A1, water inlet flows into each successively along S types
Last from wetland microbiological fuel cell C4 outflows after individual wetland microbiological fuel cell, another fires in wetland microorganism
Material battery F1, water inlet is flowed out after flowing into each wetland microbiological fuel cell successively from wetland microbiological fuel cell D4.Fig. 4
Specific circuit connecting mode is shown, the wetland microbiological fuel cell of same row forms wetland microorganism by conductor in parallel
Fuel cell subgroup, i.e. A1, A2, A3, A4 and A5 are in parallel to form A subgroups, and B1, B2, B3, B4 and B5 are in parallel to form B subgroups ... ...
By that analogy.Then all of wetland microbiological fuel cell subgroup is connected with wire by way of series connection is arranged again, i.e.,
A, C, E, B, D, F subgroup are in turn connected to form wetland microbiological fuel cell group.
During system operation, sewage (as contained weakly acidic waste water from dyestuff) enters nano iron-carbon micro-electrolytic by water inlet 105
The inhalant region 104 of reaction zone, is carried out into packing area by water distributing plate sewage, and sewage passes through after packing area 103 completes pretreatment
Downflow weir discharge is dropped in collecting-tank 4, and sewage is 2-3h in the residence time of nano iron-carbon micro-electrolytic reaction zone.Collecting-tank 4
Interior water enters electric Fenton system response area and is processed by flow inlet 201, is 2-3h, electricity in the reaction zone residence time
Water after the treatment of Fenton system response area flows into regulating reservoir by water export 203, and regulating reservoir can make next step intake evenly.
Water in regulating reservoir flows into row array type wetland microbiological fuel cell, stops 24h-36h, containing dyestuff intermediate and greatly in water outlet
Amount micromolecular compound is removed under wet land filler-microorganism-various synergy of plant-electrochemistry, and row array type wetland is micro-
The electric Fenton system response area of electric energy supply produced by biological fuel cell.
Claims (10)
1. a kind of electric fenton sewage processing system powered based on row array type wetland microbiological fuel cell, it is characterised in that bag
Include：
For the nano iron-carbon micro-electrolytic reaction zone (1) pre-processed to sewage；
For the electric Fenton system response area (2) processed nano iron-carbon micro-electrolytic reaction zone water outlet；
The row array type wetland microbiological fuel cell for being processed for electric Fenton system response area water outlet and being powered to it
(3)；
Described nano iron-carbon micro-electrolytic reaction zone, electro-Fenton reaction area, row array type wetland microbiological fuel cell are sequentially connected；
Wherein, described row array type wetland microbiological fuel cell be by by multiple wetland microbiological fuel cells (301) be connected shape
Into wetland microbiological fuel cell group；Negative electrode, the anode of wetland microbiological fuel cell group are respectively by wire and electric Fenton
The corresponding anode in system response area, negative electrode connection.
2. the electric fenton sewage processing system powered based on row array type wetland microbiological fuel cell according to claim 1
System, it is characterised in that in described wetland microbiological fuel cell group, N is arranged by by wetland microbiological fuel cell row array into M
Row, wherein M >=2, N >=2, the wetland microbiological fuel cell of same row form wetland microbiological fuel cell by conductor in parallel
Subgroup, all of wetland microbiological fuel cell subgroup forms described wetland microbiological fuel cell group by wired in series.
3. the electric fenton sewage processing system powered based on row array type wetland microbiological fuel cell according to claim 2
System, it is characterised in that to be formed being connected all of wetland microbiological fuel cell subgroup with wire by way of series connection is arranged
Described wetland microbiological fuel cell group.
4. the electric fenton sewage processing system powered based on row array type wetland microbiological fuel cell according to claim 1
System, it is characterised in that the water outlet in the electric Fenton system response area by it is a plurality of enter water passage inflow row array type wetland microorganism
Fuel cell, every is entered the wetland microbiological fuel cell number that water passage flows through and is no more than 12.
5. the electric fenton sewage processing system powered based on row array type wetland microbiological fuel cell according to claim 1
System, it is characterised in that be provided with collecting-tank (4) between the nano iron-carbon micro-electrolytic reaction zone (1) and electro-Fenton reaction area (2),
With water inlet (105), drop goes out in the oriented collecting-tank of top tape for the bottom of the nano iron-carbon micro-electrolytic reaction zone
The mouth of a river, the bottom in the electro-Fenton reaction area carries the flow inlet (201) connected with the collecting-tank.
6. the electric fenton sewage processing system powered based on row array type wetland microbiological fuel cell according to claim 5
System, it is characterised in that described nano iron-carbon micro-electrolytic reaction zone includes reaction pond body (101), passes through in the reaction tank body
Water distributing plate (102) is divided into the packing area (103) and inhalant region (104) arranged up and down, and described inhalant region carries water inlet
(105), packing area is filled with nano iron-carbon micro-electrolytic filler, and downflow weir (106) is provided with the top of described filler area.
7. a kind of sewage water treatment method, it is characterised in that including：
(1) sewage is passed through into nano iron-carbon micro-electrolytic reaction zone to be pre-processed；
(2) pretreated water outlet is passed through electric Fenton system response area and is processed；
(3) water outlet after step (2) treatment is passed through wetland microbiological fuel cell and is degraded, and wetland microbiological fuel cell is produced
The raw electric Fenton system response area of electric energy supply.
8. sewage water treatment method according to claim 7, it is characterised in that wetland microbiological fuel cell is multiple, row
Battle array forms wetland microorganism into M row's N row, wherein M >=2, N >=2, the wetland microbiological fuel cell of same row by conductor in parallel
Fuel cell subgroup, all of wetland microbiological fuel cell subgroup forms wetland microbiological fuel cell by wired in series
Group.
9. sewage water treatment method according to claim 7, it is characterised in that the water outlet in the electric Fenton system response area is led to
Cross multipoint water feeding mode into row array type wetland microbiological fuel cell, the wetland microbiological fuel cell that every water route flows through
Number is no more than 12.
10. sewage water treatment method according to claim 7, it is characterised in that the water outlet of nano iron-carbon micro-electrolytic reaction zone
Enter electric Fenton system response area after falling, it is water body oxygenation to use the mode of drop water aeration.
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