CN107892396A - A kind of microbiological fuel cell and desalination process associated with capacitive deionization - Google Patents
A kind of microbiological fuel cell and desalination process associated with capacitive deionization Download PDFInfo
- Publication number
- CN107892396A CN107892396A CN201711104660.4A CN201711104660A CN107892396A CN 107892396 A CN107892396 A CN 107892396A CN 201711104660 A CN201711104660 A CN 201711104660A CN 107892396 A CN107892396 A CN 107892396A
- Authority
- CN
- China
- Prior art keywords
- electrode
- chamber
- titanium
- fuel cell
- capacitive deionization
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
- C02F1/4604—Treatment of water, waste water, or sewage by electrochemical methods for desalination of seawater or brackish water
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Molecular Biology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Health & Medical Sciences (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses desalination process associated with a kind of microbiological fuel cell and capacitive deionization, including：Step 1: the making of capacitive deionization electrode：NACF, acetylene black, Kynoar are mixed, are uniformly coated on the surface of titanium colelctor electrode, drying forms capacitive deionization electrode；Step 2: the startup of microbiological fuel cell；Electricity-producing microorganism mix being put into anode chamber with nutrient solution, regularly replaces nutrient solution；The aqueous solution containing the potassium ferricyanide is added in cathode chamber, the medial compartment between cathode chamber and anode chamber is separated using capacitive deionization electrode, is formed desalting chamber, is the NaCl aqueous solution in desalting chamber；Electrode material of the graphite felt as yin, yang the two poles of the earth, cathode chamber, anode chamber and medial compartment are closed area and completely cut off with external environment, running gear；Step 3: electrode regeneration.The present invention microbiological fuel cell is combined with capacitive deionization after, can preferably desalination, excellent effect.
Description
Technical field
The present invention relates to desalination process technical field, and in particular to a kind of microbiological fuel cell is combined with capacitive deionization
Desalination process.
Background technology
From the industrial revolution till now, the living standard of the mankind is greatly improved, but the mankind still will face to be permitted
More crises, as various shortages of resources, the shortage problem of wherein water resource annoyings everybody always.Although water reserve is very on the earth
Greatly, but wherein the overwhelming majority is all seawater, and only wherein sub-fraction is fresh water, and it is to be difficult in addition to also have some fresh water
Utilized by mankind's exploitation, as glacier water and snow mountain on water etc., so occur substantial amounts of sewage treatment plant and water now
Business company, it both can guarantee that caused sewage was timely handled the circulation for returning the mankind, mankind's running water can be ensured again
Quality.But due to the aggravation of further increase and the various pollutions of population now, the drinking water source of cleaning is fewer and fewer, is
The deficiency at supplement cleaning water source, the mankind, which do not turn off, sends new water source, as seawater and underground water etc., but these water sources are wherein
Containing certain salinity, certain injury can be caused to the body of the mankind if directly being drunk without processing, be that this is various
Desalting technology is developed in succession, as：UF membrane, distillation, ion exchange, electrodeionization and freeze desalination etc., but these
Technology is required for external energy and observable index is higher, is unfavorable for the development of recycling economy.In addition microbiological fuel cell
It is not ideal for the desalting efficiency of the salt solution of low concentration.The microbiological fuel cell that this patent proposes is combined with capacitive deionization
It can reach the purpose strengthened low concentration of salt water desalination and reclaim salt.
The Chinese patent application of Application No. 201410824619.4 (application publication number CN104617322A) discloses one
Kind microorganism capacitive desalination fuel cell technology, it is that capacitive deionization unit is powered to produce electric energy using microorganism treating sewage.
The desalting technology is made up of a microbiological fuel cell and a capacitive deionization unit.The anode chamber of microbiological fuel cell and the moon
Two cation-exchange membranes and two active carbon cloth electrodes are added between pole room, form desalting chamber.Two sun of the technical scheme
Ionic membrane and active carbon cloth electrode segmentation anode chamber, desalting chamber and cathode chamber, make proton can be by cationic membrane and active carbon cloth
Freely shifted between three Room, stablize each room pH, longtime running microorganism capacitive desalination fuel cell, keep electricity production bacterium activity, carry
High electricity generation ability and desalting efficiency.The technical scheme is higher using amberplex cost, and negative electrode and anode are not over load
Connection, the migration that electrical potential difference carries out ion being uniquely relied on, two electrodes of electrode regeneration are not connected also does not produce electric current in outside,
Also uniquely rely on electrical potential difference and carry out Ion transfer, desalting efficiency is relatively low.
The content of the invention
In view of the deficiencies of the prior art, the present invention provides taken off associated with a kind of microbiological fuel cell and capacitive deionization
Salt method, being capable of preferably desalination after microbiological fuel cell is combined with capacitive deionization.
A kind of microbiological fuel cell and method associated with capacitive deionization, including：
Step 1: the making of capacitive deionization electrode：
NACF, acetylene black, Kynoar are mixed, are uniformly coated on the surface of titanium colelctor electrode, drying is formed
Capacitive deionization electrode；
Step 2: the startup of microbiological fuel cell；
Electricity-producing microorganism mix being put into anode chamber with nutrient solution, regularly replaces nutrient solution；Added in cathode chamber
The aqueous solution containing the potassium ferricyanide, the medial compartment between cathode chamber and anode chamber are separated using capacitive deionization electrode, are formed de-
Salt room, it is the NaCl aqueous solution in desalting chamber；Electrode material of the graphite felt as yin, yang the two poles of the earth, cathode chamber, anode chamber and medial compartment
It is closed area and completely cuts off with external environment, running gear；
Step 3: electrode regeneration；
When the resistance for determining microbiological fuel cell steeply rises, the just absorption of explanation NACF in desalting chamber
Amount has reached saturation, and electrode needs to regenerate, and titanium colelctor electrode is taken apart with the wire that cathode electrode, anode electrode are connected, makes titanium
Two wires on colelctor electrode connect to form short circuit dischange, and the ion desorption adsorbed on NACF enters liquid, so as to reach
To the regeneration of electrode, such circulation step two and step 3 make device continuously run to reach the purpose of desalination.
In step 1, described NACF, acetylene black, the mass ratio of Kynoar are 8：0.5~2：0.5~2,
More preferably 8：1：1.
The condition of described drying is：65 DEG C~95 DEG C drying in baking oven are placed in, more preferably；It is placed in 80 in baking oven
DEG C drying.
The effect of capacitive deionization above all electrode, and the effect of electrode relies primarily on the selection of electrode material.Electricity
Hold deionization electrode to be made up of two parts：A part is titanium colelctor electrode, and another part is NACF, in order to preferably make work
Property Carbon fibe is sticked in titanium plate, using NACF：Acetylene black：Kynoar=8:1:1 mixed after uniformly apply
Cloth is placed in 80 DEG C of drying in baking oven, had both obtained required electrode on titanium colelctor electrode surface；
In step 2, described electricity-producing microorganism can use secondary sedimentation tank of sewage treatment work fresh sludge as the micro- life of electricity production
The source of thing, the strain of the numbering 23931 of Chinese industrial Microbiological Culture Collection administrative center sale can also be used
Shewanella sp., when using the strain Shewanella sp. of numbering 23931, there is higher salt rejection rate, efficiency is more
It is high.
Described nutrient solution, in terms of 1 liter, include the component of following weight：
Described nutrient solution, in terms of 1 liter, include the component of following weight：
Contain the composition of following concentration in the described mineral ion aqueous solution：
Contain the composition of following concentration in the described vitamin aqueous solution：
Nutrient solution was changed every 1~5 day.
The concentration of the potassium ferricyanide is 5g/L~30g/L in the described aqueous solution containing the potassium ferricyanide, more preferably
10g/L solution；
The described NaCl aqueous solution is 1g/L~10g/L；Further preferably, it is 2g/L~5g/L.
Cathode chamber, anode chamber and desalting chamber are closed area and completely cut off with external environment, are placed at 25 DEG C~35 DEG C and transport
OK.
A kind of microbiological fuel cell and desalter associated with capacitive deionization, including：Housing, set in described housing
Two pieces of titanium colelctor electrodes are put, anode chamber, desalting chamber and cathode chamber will be divided into housing, described desalting chamber is located at the sun
Between pole room and cathode chamber, the side that described titanium colelctor electrode is located at the desalting chamber is provided with NACF, titanium colelctor electrode and
NACF forms capacitive deionization electrode；
Be provided with anode electrode in described anode chamber, described cathode chamber is provided with cathode electrode, described anode electrode and
Cathode electrode connects after being loaded by wired in series.
In the present invention, described anode electrode and cathode electrode connect after being loaded by wired in series, can effectively add
Ion in fast low concentration salt solution is migrated and adsorbed on NACF, also, produces electric current in outside, can be effective
Quickening electrode regeneration, and the degree of electrode regeneration is higher.
Described load is resistance.
The resistance of described resistance is 500 Ω~4000 Ω, more preferably 1000 Ω.
Described wire uses titanium silk.
Two pieces of described titanium colelctor electrodes are connected with wire, and when desalination, the wire that two pieces of titanium colelctor electrodes are connected with is respectively at sun
Pole electrode connects with cathode electrode, and when the adsorbance of NACF has reached saturation in desalting chamber, electrode needs to regenerate,
Titanium colelctor electrode is taken apart with the wire that microbiological fuel cell cathode and anode is connected, two wires on titanium colelctor electrode is connected shape
Into short circuit dischange, the ion desorption adsorbed on NACF enters liquid, so as to reach the regeneration of electrode.
Described anode chamber is provided with nutrient solution import and waste liquid outlet, and described nutrient solution import is located at vertical direction
Top, described waste liquid outlet are located at the bottom of vertical direction.
Described cathode chamber is provided with catholyte import and catholyte exports, described catholyte import position
In vertically directed upper portion, the outlet of described catholyte is positioned at the bottom of vertical direction.
Compared with prior art, beneficial effect possessed by the present invention：
Desalter associated with microbiological fuel cell of the present invention and capacitive deionization, 1, ion exchange need not be used
Film, cost can be reduced；2nd, no amberplex can effectively control salt to enter anode chamber, reduce danger of the salt to microorganism
Evil；3rd, without exchange membrane is used, can further be reduced in electrode regeneration because diffusion, salt enter anode and cathode；4th, adopt
It is cheaper than charcoal cloth with Ti electrode and NACF, reduce Meteorological.In the present invention, described anode electrode and negative electrode electricity
Pole connects after being loaded by wired in series, can effectively accelerate the ion in low concentration salt solution to be migrated and adsorbed in activity
On Carbon fibe, also, electric current is produced in outside, can effectively accelerate electrode regeneration, and the degree of electrode regeneration is high, uses
Excellent effect.
The present invention is combined to reach the purpose of desalination, using titanium plate using a kind of microbiological fuel cell and capacitive deionization
For colelctor electrode, make electrode that there is more preferable corrosion resistance and strengthen the effect of current collection, use NACF as sorbing material, just
In preferably forming electric double layer using its more empty characteristic in electrode surface, the total amount of the ion of absorption is improved, and it has
Relatively good electric conductivity, efficiently reduces internal resistance；Using Kynoar as adhesion agent make colelctor electrode and sorbing material it
Between can realize conduction electric current, and be resistant to the corrosion of salt solution；Microbiological fuel cell can produce 1V or so voltage, this electricity
Pressure meets the 1-2V of capacitive deionization voltage request, can realize the ion in solution migration and water that electrolysis does not occur is anti-
Answer, be effectively improved the utilization rate of the energy；It is and (de- for medial compartment in the presence of the cathode and anode of microbiological fuel cell
Salt room) charging offer power, the positive and negative ion in middle desalting chamber is migrated in the presence of electric current to opposite-sign direction,
Migrate to NACF surface, form electric double layer to reach the purpose of desalination；In addition the salinity removed does not enter into
Biological anode, simply adsorb the harm on the surface of desalting chamber's electrode, reduced to anode electricity-producing microorganism；Electrode regeneration process
In without chemical reagent addition can realize regeneration purpose, This further reduces the harm to environment.
Brief description of the drawings
Fig. 1 is the desalination schematic diagram of microbiological fuel cell of the present invention and desalter associated with capacitive deionization；
Fig. 2 is the electrode regeneration schematic diagram of microbiological fuel cell of the present invention and desalter associated with capacitive deionization；
Wherein, 1 is nutrient solution import, and 2 be anode chamber, and 3 be waste liquid outlet, and 4 be anode electrode, 5 be titanium colelctor electrode (i.e.
Titanium pole plate), 6 be NACF, and 7 be desalting chamber, and 8 be titanium colelctor electrode (i.e. titanium pole plate), and 9 be cathode electrode, and 10 be negative electrode electricity
Liquid outlet is solved, 11 be cathode chamber, and 12 be cathode electrode liquid import, and 13 be binding post, and 14 be wire (titanium silk), and 15 be load (electricity
Resistance).
Embodiment
As shown in Figure 1 and Figure 2, a kind of microbiological fuel cell and desalter associated with capacitive deionization, including：Nutrition
Liquid import 1, anode chamber 2, waste liquid outlet 3, anode electrode 4, titanium colelctor electrode 5 (i.e. titanium pole plate), NACF 6, desalting chamber
7, titanium colelctor electrode 8 (i.e. titanium pole plate), cathode electrode 9, catholyte outlet 10, cathode chamber 11, cathode electrode liquid import 12, connect
Terminal 13, wire 14 (titanium silk), load 15 (resistance).
The device is made up of three parts：Anode chamber 2, desalting chamber 7 and cathode chamber 11, wherein the middle-jiao yang, function of the spleen and stomach polar region of anode chamber 2 are main
For the playground of microorganism, desalting chamber 7 is that desalination area is substantially carried out the desalination of salt solution and the region of electrode regeneration, cathode chamber 11
It is mainly the place of the catholyte of electron acceptor for cathodic region.
The device includes housing, sets two pieces of titanium colelctor electrodes 5 and 8 (i.e. titanium pole plate) in housing, will be divided into housing
Anode chamber 2, desalting chamber 7 and cathode chamber 11, between anode chamber 2 and cathode chamber 11, titanium colelctor electrode 5 and 8 is located at for desalting chamber 7
The side of desalting chamber 7 is provided with NACF 6, titanium colelctor electrode 5,8 and the dimension composition electricity of active carbon fibre 6 for being attached to titanium colelctor electrode 5,8
Hold deionization electrode；
Anode electrode 4 is provided with anode chamber 2, cathode chamber 11 is provided with cathode electrode 9, and anode electrode 4 and cathode electrode 9 pass through
The series resistance of wire 14 connects, and the resistance is as a load 15.
Housing uses lucite as major matrix material, can not only meet intensity requirement but also can reach etch-proof work
With there are rubber sheet gasket leakproof, three parts bolt in the junction between anode chamber 2 and desalting chamber 7, desalting chamber 7 and cathode chamber 11
It is fixedly connected, for preferably leakproof and prevents that salt solution from entering yin, yang polar region, the edge size of titanium pole plate and packing ring
Size is identical.
The resistance of resistance is 1000 Ω.
Wire 14 uses titanium silk.
Two pieces of titanium colelctor electrodes 5 and 8 are connected with wire 14, as shown in figure 1, when desalination, two pieces of titanium colelctor electrodes 5 and 8 are connected with
Wire 14 connected respectively at anode electrode 4 and cathode electrode 9, as shown in Fig. 2 when in desalting chamber 7 NACF 6 suction
Attached amount has reached saturation, and electrode needs to regenerate, and two pieces of titanium colelctor electrodes 5 and 8 are connected with microbiological fuel cell cathode and anode
Wire is taken apart, makes two pieces of titanium colelctor electrodes 5 connect to form short circuit dischange with two wires on 8, adsorbed on NACF 6 from
Son desorption enters liquid, so as to reach the regeneration of electrode.
Anode chamber 2 is provided with nutrient solution import 1 and waste liquid outlet 3, and nutrient solution import 1 is located at vertically directed upper portion, gives up
Liquid outlet 3 is located at the bottom of vertical direction.
Cathode chamber 11 is provided with catholyte import 12 and catholyte outlet 10, and catholyte import 12 is positioned at vertical
Nogata to top, catholyte outlet 10 be located at vertical direction bottoms.
The nutrient solution used in the present invention in embodiment, in terms of 1 liter, include the component of following weight：
Contain the composition of following concentration in the described mineral ion aqueous solution：
Contain the composition of following concentration in the described vitamin aqueous solution：
Embodiment 1
Step 1: the making of capacitive deionization electrode
The effect of capacitive deionization above all electrode, and the effect of electrode relies primarily on the selection of electrode material.Electricity
Hold deionization electrode to be made up of two parts：A part is titanium colelctor electrode, and another part is NACF, in order to preferably make work
Property Carbon fibe is sticked in titanium plate, using NACF：Acetylene black：Kynoar in mass ratio 8:1:After 1 is mixed
Titanium colelctor electrode surface is uniformly coated on, is placed in 80 DEG C of drying in baking oven, had both obtained required electrode, i.e. capacitive deionization electricity
Pole.
Step 2: the startup of microbiological fuel cell；
Source of the appropriate seven lattice secondary sedimentation tank of sewage treatment work fresh sludge as electricity-producing microorganism is taken, sludge is crossed 20 purposes
Sieve is to filter out bigger debris, and the sludge filtered is according to sludge：(1000mg sodium acetates, 50mL phosphoric acid delay nutrient solution
Rush solution (0.2M), 10mL mineral ions, 5mL vitamins, said components mixing and water adding constant volume to 1L) by volume 1:1 is carried out
Uniformly mixing is put into 500mL anode region, and changes nutrient solution every 3 days；500mL is added in cathodic region and contains 10g/L
The aqueous solution of the potassium ferricyanide；Medial compartment (desalting chamber) between yin, yang polar region is separated using titanium colelctor electrode, is in middle desalting chamber
The 5g/L NaCl aqueous solution；Electrode material of the graphite felt as negative and positive the two poles of the earth, with titanium silk and the electricity of electrode and the Ω of external circuit 1000
Resistance is connected, and electrode of colelctor electrode of the desalting chamber per side all with corresponding one layer of microbiological fuel cell is connected, negative electrode
Room, anode chamber and medial compartment are closed area and completely cut off with external environment, after device connects, are placed at 30 DEG C and run；
Step 3: electrode regeneration；
When the resistance for determining microbiological fuel cell steeply rises, the just absorption of explanation NACF in desalting chamber
Amount has reached saturation, and electrode needs to regenerate, and colelctor electrode is taken apart with the wire that microbiological fuel cell cathode and anode is connected, made
Two wires on colelctor electrode connect to form short circuit dischange, and the ion desorption adsorbed on NACF enters liquid, so as to reach
To the regeneration of electrode；
Step 4: desalination is carried out to 0.5g/LNaCl solution
After device successfully starts up, and after being regenerated to electrode, the solution in desalting chamber is changed into 0.5g/L NaCl water
Solution is logical typically directly with microorganism desalination fuel cell 4h salt rejection rate typically 30% for the salt solution of this low concentration
Cross after microbiological fuel cell combines with capacitive deionization, salt rejection rate reaches 50% after running 4h.
Embodiment 2
The making of step 1 capacitive deionization electrodes
The effect of capacitive deionization above all electrode, and the effect of electrode relies primarily on the selection of electrode material.Electricity
Hold deionization electrode to be made up of two parts：A part is titanium colelctor electrode, and another part is NACF, in order to preferably make work
Property Carbon fibe is sticked in titanium plate, using NACF：Acetylene black：Kynoar=8:1:1 mixed after uniformly apply
Cloth is placed in 80 DEG C of drying in baking oven, had both obtained required electrode on titanium colelctor electrode surface.
The startup of step 2 microbiological fuel cells；
Source of the appropriate seven lattice secondary sedimentation tank of sewage treatment work fresh sludge as electricity-producing microorganism is taken, sludge is crossed 20 purposes
Sieve is to filter out bigger debris, and the sludge filtered is according to sludge：(1000mg sodium acetates, 50mL phosphoric acid delay nutrient solution
Rush solution (0.2M), 10mL mineral ions, 5mL vitamins, said components mixing and water adding constant volume to 1L)=1:1 is uniformly mixed
Conjunction is put into 500mL anode region, and changes nutrient solution every 3 days；500mL is added in cathodic region and contains 10g/L iron cyanidings
Potassium solution；Medial compartment (desalting chamber) between yin, yang polar region is separated using titanium colelctor electrode, is 5g/L NaCl in middle desalting chamber
Solution；Electrode material of the graphite felt as yin, yang the two poles of the earth, connected with titanium silk with the resistance of electrode and the Ω of external circuit 1000,
Colelctor electrode electrode all with corresponding one layer of microbiological fuel cell of the desalting chamber per side is connected, cathode chamber, anode chamber and
Medial compartment is closed area and completely cut off with external environment, after device connects, is placed at 30 DEG C and runs；
Step 3 electrode regenerations；
When the resistance for determining microbiological fuel cell steeply rises, the just absorption of explanation NACF in desalting chamber
Amount has reached saturation, and electrode needs to regenerate, and colelctor electrode is taken apart with the wire that microbiological fuel cell cathode and anode is connected, made
Two wires on colelctor electrode connect to form short circuit dischange, and the ion desorption adsorbed on NACF enters liquid, so as to reach
To the regeneration of electrode；
Step 4 carries out desalination to 2g/LNaCl solution
After device successfully starts up, and after being regenerated to electrode, it is water-soluble that the solution in desalting chamber is changed into 2g/L NaCl
Liquid, for the salt solution of this low concentration, typically directly use microorganism desalination fuel cell 7h salt rejection rate typically 40%, pass through
After microbiological fuel cell is combined with capacitive deionization, salt rejection rate reaches 60% after running 7h.
Embodiment 3
The making of step 1 capacitive deionization electrodes
The effect of capacitive deionization above all electrode, and the effect of electrode relies primarily on the selection of electrode material.Electricity
Hold deionization electrode to be made up of two parts：A part is titanium colelctor electrode, and another part is NACF, in order to preferably make work
Property Carbon fibe is sticked in titanium plate, using NACF：Acetylene black：Kynoar=8:1:1 mixed after uniformly apply
Cloth is placed in 80 DEG C of drying in baking oven, had both obtained required electrode on titanium colelctor electrode surface.
The startup of step 2 microbiological fuel cells；
Using city sell strain Shewanella sp., numbering 23931 (Chinese industrial Microbiological Culture Collection administrative center,
CICC), cultivated, take 20mL OD600For 1.0 bacterium solutions and nutrient solution (1000mg sodium acetates, 50mL phosphate buffer solutions
(0.2M), 10mL mineral ions, 5mL vitamins, said components mixing and water adding constant volume to 1L) uniformly mixing is put into 500mL for progress
Anode region in, and every 3 days change nutrient solution；500mL is added in cathodic region and contains 10g/L potassium ferricyanide aqueous solutions；Cloudy,
Medial compartment (desalting chamber) between anode region is separated using titanium colelctor electrode, is the 5g/L NaCl aqueous solution in middle desalting chamber；Stone
Electrode material of the black felt as yin, yang the two poles of the earth, connected with titanium silk with the resistance of electrode and the Ω of external circuit 1000, desalting chamber is every
Electrode of the colelctor electrode of side all with corresponding one layer of microbiological fuel cell is connected, and cathode chamber, anode chamber and medial compartment are equal
Completely cut off for closed area and with external environment, after device connects, be placed at 30 DEG C and run；
Step 3 electrode regenerations；
When the resistance for determining microbiological fuel cell steeply rises, the just absorption of explanation NACF in desalting chamber
Amount has reached saturation, and electrode needs to regenerate, and colelctor electrode is taken apart with the wire that microbiological fuel cell cathode and anode is connected, made
Two wires on colelctor electrode connect to form short circuit dischange, and the ion desorption adsorbed on NACF enters liquid, so as to reach
To the regeneration of electrode；
Step 4 carries out desalination to 2g/LNaCl solution
After device successfully starts up, and after being regenerated to electrode, it is molten that the solution in desalting chamber is changed into 2g/L NaCl
Liquid, for the salt solution of this low concentration, typically directly use microorganism desalination fuel cell 7h salt rejection rate typically 40%, pass through
After microbiological fuel cell is combined with capacitive deionization, salt rejection rate reaches 75% after running 7h.
Embodiment 3 compares embodiment 1~2, using specific microorganism so that microbiological fuel cell and capacitive deionization
After joint, there is higher salt rejection rate, it is more efficient.
Claims (11)
1. a kind of microbiological fuel cell and method associated with capacitive deionization, it is characterised in that including：
Step 1: the making of capacitive deionization electrode：
NACF, acetylene black, Kynoar are mixed, are uniformly coated on the surface of titanium colelctor electrode, drying forms electric capacity
Deionization electrode；
Step 2: the startup of microbiological fuel cell；
Electricity-producing microorganism mix being put into anode chamber with nutrient solution, regularly replaces nutrient solution；Add and contain in cathode chamber
The aqueous solution of the potassium ferricyanide, the medial compartment between cathode chamber and anode chamber are separated using capacitive deionization electrode, form desalting chamber,
It is the NaCl aqueous solution in desalting chamber；Electrode material of the graphite felt as yin, yang the two poles of the earth, cathode chamber, anode chamber and medial compartment are
Closed area simultaneously completely cuts off, running gear with external environment；
Step 3: electrode regeneration；
When the resistance for determining microbiological fuel cell steeply rises, just the adsorbance of the NACF in desalting chamber is illustrated
Through reaching saturation, electrode needs to regenerate, and titanium colelctor electrode is taken apart with the wire that cathode electrode, anode electrode are connected, makes titanium current collection
Two wires on extremely connect to form short circuit dischange, and the ion desorption adsorbed on NACF enters liquid, so as to reach electricity
The regeneration of pole, such circulation step two and step 3 make device continuously run to reach the purpose of desalination.
2. according to the method for claim 1, it is characterised in that in step 1, described NACF, acetylene black, gather
The mass ratio of vinylidene is 8：0.5~2：0.5~2.
3. according to the method for claim 1, it is characterised in that in step 1, the condition of described drying is：It is placed in baking oven
In 65 DEG C~95 DEG C drying.
4. according to the method for claim 1, it is characterised in that in step 2, described electricity-producing microorganism uses Chinese work
The strain Shewanella sp. for the numbering 23931 that industry Microbiological Culture Collection administrative center sells.
5. according to the method for claim 1, it is characterised in that in step 2, described nutrient solution, in terms of 1 liter, including with
The component of lower weight：
6. according to the method for claim 1, it is characterised in that in step 2, nutrient solution was changed every 1~5 day.
7. according to the method for claim 1, it is characterised in that in step 2, the aqueous solution containing the potassium ferricyanide
The concentration of the middle potassium ferricyanide is 5g/L~30g/L solution.
8. according to the method for claim 1, it is characterised in that in step 2, the described NaCl aqueous solution be 1g/L~
10g/L。
9. according to the method for claim 1, it is characterised in that using associated with microbiological fuel cell and capacitive deionization
Desalter, including：Housing, described housing is interior to set two pieces of titanium colelctor electrodes, anode chamber, desalting chamber will be divided into housing
And cathode chamber, between the anode chamber and cathode chamber, described titanium colelctor electrode is located at the desalination for described desalting chamber
The side of room is provided with NACF, and titanium colelctor electrode and NACF form capacitive deionization electrode；
Anode electrode is provided with described anode chamber, described cathode chamber is provided with cathode electrode, described anode electrode and negative electrode
Electrode connects after being loaded by wired in series.
10. according to the method for claim 9, it is characterised in that two pieces of described titanium colelctor electrodes are connected with wire.
11. according to the method for claim 9, it is characterised in that described anode chamber is provided with nutrient solution import and waste liquid is arranged
Outlet, described nutrient solution import are located at vertically directed upper portion, and described waste liquid outlet is located at the bottom of vertical direction；
Described cathode chamber is provided with catholyte import and catholyte exports, and described catholyte import is positioned at vertical
Nogata to top, described catholyte outlet positioned at vertical direction bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711104660.4A CN107892396A (en) | 2017-11-10 | 2017-11-10 | A kind of microbiological fuel cell and desalination process associated with capacitive deionization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711104660.4A CN107892396A (en) | 2017-11-10 | 2017-11-10 | A kind of microbiological fuel cell and desalination process associated with capacitive deionization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107892396A true CN107892396A (en) | 2018-04-10 |
Family
ID=61804900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711104660.4A Pending CN107892396A (en) | 2017-11-10 | 2017-11-10 | A kind of microbiological fuel cell and desalination process associated with capacitive deionization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107892396A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109721134A (en) * | 2019-03-06 | 2019-05-07 | 哈尔滨工业大学 | A kind of preparation method of the conductive sintering membrane electrode suitable for microbial film filtering battery |
| CN110104741A (en) * | 2019-06-04 | 2019-08-09 | 东北电力大学 | Double film room membrane capacitance demineralizers with continuous water-yielding capacity |
| CN110746034A (en) * | 2019-07-24 | 2020-02-04 | 南京理工大学 | Stack upstream coupling type microbial desalting device and desalting method |
| CN111816902A (en) * | 2020-07-16 | 2020-10-23 | 南京理工大学 | Capacitive microbial desalination cell device and method applied to chemical tail water treatment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101638256A (en) * | 2008-07-30 | 2010-02-03 | 冠亚智财股份有限公司 | Water treating system for removing ions from water |
| CN102603039A (en) * | 2012-01-19 | 2012-07-25 | 清华大学 | Coupling desalination method and device |
| CN103401008A (en) * | 2013-07-31 | 2013-11-20 | 华南理工大学 | Method and device for storing bioelectrical energy by virtue of capacitive anode |
| CN104617322A (en) * | 2014-12-26 | 2015-05-13 | 湖南大学 | Microbial capacitive desalination fuel cell technology |
-
2017
- 2017-11-10 CN CN201711104660.4A patent/CN107892396A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101638256A (en) * | 2008-07-30 | 2010-02-03 | 冠亚智财股份有限公司 | Water treating system for removing ions from water |
| CN102603039A (en) * | 2012-01-19 | 2012-07-25 | 清华大学 | Coupling desalination method and device |
| CN103401008A (en) * | 2013-07-31 | 2013-11-20 | 华南理工大学 | Method and device for storing bioelectrical energy by virtue of capacitive anode |
| CN104617322A (en) * | 2014-12-26 | 2015-05-13 | 湖南大学 | Microbial capacitive desalination fuel cell technology |
Non-Patent Citations (1)
| Title |
|---|
| 何培新: "《高级微生物学》", 31 August 2017 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109721134A (en) * | 2019-03-06 | 2019-05-07 | 哈尔滨工业大学 | A kind of preparation method of the conductive sintering membrane electrode suitable for microbial film filtering battery |
| CN110104741A (en) * | 2019-06-04 | 2019-08-09 | 东北电力大学 | Double film room membrane capacitance demineralizers with continuous water-yielding capacity |
| CN110746034A (en) * | 2019-07-24 | 2020-02-04 | 南京理工大学 | Stack upstream coupling type microbial desalting device and desalting method |
| CN111816902A (en) * | 2020-07-16 | 2020-10-23 | 南京理工大学 | Capacitive microbial desalination cell device and method applied to chemical tail water treatment |
| CN111816902B (en) * | 2020-07-16 | 2021-03-23 | 南京理工大学 | Capacitive microbial desalination cell device and method applied to chemical tail water treatment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107892396A (en) | A kind of microbiological fuel cell and desalination process associated with capacitive deionization | |
| Ramírez-Moreno et al. | Comparative performance of microbial desalination cells using air diffusion and liquid cathode reactions: study of the salt removal and desalination efficiency | |
| CN102329006B (en) | Microbial photoelectrochemical system for simultaneously generating electricity and hydrogen and treating sewage | |
| CN101267045B (en) | A microbe fuel battery and its application | |
| CN102976559B (en) | Anaerobic ammonia oxidation microbe reverse electroosmosis sewage treatment and power generation method and device | |
| CN104143648B (en) | Utilize microbiological fuel cell to remove and reclaim the device and method of ammonia nitrogen in sewage | |
| CN105236584B (en) | A kind of upward vertical flow artificial swamp couples the method and device of microorganism electrolysis cell strengthened denitrification | |
| CN105502673B (en) | It is a kind of using slag as the synchronous electrogenesis of anode and the device of sewage purification | |
| CN102001729A (en) | Electrolytic treatment method of heavy metal-containing wastewater | |
| CN104600345B (en) | Continuous-flow anaerobic biological cathode microbial fuel cell | |
| CN102263279A (en) | Microbial fuel cell device with artificial wetland aquatic plant electrodes | |
| CN105836873A (en) | Microbial battery | |
| CN104909526B (en) | Device for removing heavy metals in sludge by using electro-dynamic method and synchronously and deeply dehydrating sludge | |
| CN102603039A (en) | Coupling desalination method and device | |
| CN102503059A (en) | Method for removing heavy metal from sludge and device thereof | |
| CN207566948U (en) | A kind of microbiological fuel cell and desalter associated with capacitive deionization | |
| CN107626207A (en) | The method and apparatus for synchronously reclaiming metal using conductivity ceramics film enrichment spent acid | |
| CN110240367A (en) | A kind of sewage disposal system and method that carbon synchronous nitrogen and phosphorus efficiently removes | |
| CN114409031A (en) | Carbon source purification method based on sludge anaerobic fermentation liquid | |
| CN106745676A (en) | A kind of ecological many negative electrode urine processing devices and method | |
| CN109574161A (en) | A kind of MnO2Compound porous carbon material electrode and its application in capacitive deionization desalination | |
| CN105621591B (en) | A kind of method based on electronic-controlled electrogenesis desalinisation device and using device processing oil refining wastewater containing sulphur ammonium | |
| CN105541046B (en) | It is a kind of using slag as the synchronous electrogenesis of anode and the device of sewage purification | |
| CN217555865U (en) | Multi-channel capacitive desalination device constructed by copper ion redox electrolyte | |
| CN205368061U (en) | Use device of slag as synchronous product electricity of anodal and sewage purification |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180410 |
|
| RJ01 | Rejection of invention patent application after publication |