CN208378515U - A kind of bioelectrochemical system for purifying drinking water nitrate - Google Patents
A kind of bioelectrochemical system for purifying drinking water nitrate Download PDFInfo
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Abstract
The utility model relates to a kind of bioelectrochemical systems for purifying drinking water nitrate, it is characterized in that, the system comprises anode (1), anode chamber (2), cathode (3), cathode chamber (4), diaphragm (5), load (6), DC power supply (7), automatic controller (8), cathode chamber recoil valve (9), anode chamber's flushing valve (10), water flow switch (11), safety valve (12), anode chamber's sealing cover (13), reference electrode (14), shell (15), water inlet (16), water purification outlet (17), recoil outlets (18).The utility model had both solved the problems, such as that drinking water nitrate reduction lacked electron donor, metal oxidation corrosion secondary pollution possible for drinking water is in turn avoided simultaneously, while also avoiding zeroth order Fe nanometer particles reduction process and adding bring troublesome operation defect in batches, in proportion.
Description
Technical field
The utility model relates to Water warfare fields, in particular to drink water purifying field, and in particular to one kind is for purifying
The bioelectrochemical system and purification method of Nitrate In Drinking Water.
Background technique
Industrial and agricultural production and people occupy in life process, all can be to a large amount of nitrogen of environmental emission, especially livestock and poultry cultivation
And more degree application of a large amount of chemical fertilizer, so that a large amount of nitrogens enter surface water body and ground water regime.In the natural environment, ammonia
Nitrogen is easy to be changed into nitrate nitrogen by oxidation reaction, and the nitrogen of various other forms also has the trend for being converted to nitrate,
Therefore all combination nitrogen sources are all the potential sources of nitrate.In recent years, nitre in many local surface water and groundwaters in the world
The content of hydrochlorate nitrogen constantly increasing, and the peace jeopardized as drinking water source is significantly increased in especially groundwater azotate
Entirely.It is generally deficient of electron donor in drinking water, so that the generation of heterotrophic denitrification is more difficult, therefore removes the nitre in drinking water
Hydrochlorate is all difficult point all the time.
Nitrate itself is not harmful to human body, but after entrance human body, can be reduced to nitrous by nitrate reduction bacterium
Hydrochlorate, nitrite react to form ferrihemoglobin with the hemoglobin in blood, and influence the oxygen transmittability of blood.It is sub-
Nitrate can also form strong carcinogen-nitroso compound such as nitrosamine, nitrosyl with the intracorporal ammonia of people and amide
Amine can induce the generation of various the tissue such as livers, kidney, stomach, esophagus tumour of human body.
Nitrate is larger to mankind's harm, and stringent limit has all been done to the nitrate in food and drinking water in countries in the world
It makes, nitrate is required to be limited to 20mg/L lower than 10mg/L(underground water source in Drinking Water in China sanitary standard).Existing drinking water
Nitrate purification process mainly includes electrodialysis, ion exchange and reverse osmosis etc., wherein ion exchange needs to consume a large amount of
Regenerative agent, electrodialysis and reverse osmosis process not only consume the energy, but also the waste water containing a large amount of nitrate dopes is discharged into environment
Lead to new pollution.Can be the products such as nitrogen, ammonia by nitrate reduction by redox approach, electron donor include metal,
Organic acid, hydrogen, sulphur simple substance etc..Nitrate reduction includes abiotic electronation and biological reducing (denitrification, nitrate
Be reduced to ammonia) etc. processes.In the existing purification process of drinking water, for the considerations of being ensured to drinking water safety, organic acid, sulphur list
Matter etc. is subject to certain restrictions as the application of denitrification electron donor.It is supplied using Zero-valent Iron, electrochemistry combination hydrogen as electronics
The nitrate reduction research of body becomes hot spot.In recent years, the zeroth order Fe nanometer particles obtained by special process reduction are because its is huge
Big specific surface area and reactivity can restore nitrate (Kinetics of nitrate completely within a short period of time
Reductive denitrification by nanoscalezero-valent iron, Process Safety and
Environmental Protection, 2010,88,439-445, Kinetics of reductive
Denitrification by nanoscale zero-valentiron, Chemosphere, 2000,41,1307-1311,
Evaluation on the NanoscaleZero Valent Iron Based MicrobialDenitrification
For Nitrate Removalfrom Groundwater, Scientific Reports, 5:12331, DOI:10.1038/
Srep12331).Unfortunately, the adding proportion of Zero-valent Iron itself is limited by nitrate concentration, and purification process is cumbersome, iron
Oxidation product and the foreign ion that may contain all can bring secondary pollution to drinking water, in addition nano zero valence iron itself is gone back
Former synthesis technology is complicated, is related to the hidden danger such as safely.Existing patent is described using insoluble petals such as graphite, platinum, palladiums as lazy
Property anode, nickel, iron, copper, zinc or alloy etc. carried out as cathode nitrate reduction (removing water in nitrate nitrogen electrochemistry from
Feeding denitrification integrated reactor, CN200810121489.2, a kind of method that electrochemistry removes nitrate in drinking water source,
CN200810239271.7), nitrate reduction provides electronics using anode water electrolysis, and nitrate reduction process is also by oxygen
Inhibit, may cause the accumulation of nitrite, the low electrolyte environment of drinking water makes electrochemical process current efficiency low, additionally
Electrolyte containing chlorine is added, the harmful substances such as excessive chlorine residue can be generated.In addition, existing technology all lacks for drinking water nitric acid
During the control of salt reduction process oxidation-reduction potential, zeroth order Fe nanometer particles and electrochemistry nitrate reduction, due to big
The Zero-valent Iron oxidation corrosion of amount, water electrolysis, which generate excessive hydrogen, leads to nitrate also so that environmental oxidation reduction potential is more negative
Former process accumulates a large amount of ammonia nitrogen.
Summary of the invention
The utility model contains the pollutants such as a large amount of nitrate for water supply terminals drinking water such as families, conventional at present
Physics, the problem of chemistry removal process costs are high, energy consumption is high, and filter core is frequently replaced, zeroth order Fe nanometer particles being developed, electricity
Chemical nitrate reduction complex operation, current efficiency are low, and there are the drawbacks such as serious ammonia nitrogen accumulation.The utility model mentions
For the bioelectrochemical system and purification method of a kind of purifying drinking water nitrate, which is mainly used in household drinking water
The purification of nitrate can also be applied to the drinking water nitrate field of purification of the water supply terminals such as school, hotel, office space.It should
System can remove effectively in drinking water the accumulation that denitrification by-product containing nitrate pollutants and is greatly decreased.
In order to achieve the above objectives, the utility model provides the following technical solutions:
A kind of bioelectrochemical system for purifying drinking water nitrate, which is characterized in that the system comprises anodes
(1), anode chamber (2), cathode (3), cathode chamber (4), diaphragm (5), load (6), DC power supply (7), automatic controller (8), yin
Pole room recoil valve (9), anode chamber's flushing valve (10), water flow switch (11), safety valve (12), anode chamber's sealing cover (13), reference
Electrode (14), shell (15), water inlet (16), water purification outlet (17), recoil outlet (18)；
Its Anodic is located in anode chamber, and cathode is located in cathode chamber, is separated between anode chamber and cathode chamber by partition,
Diaphragm is arranged in wall middle and lower part, and diaphragm uses proton exchange membrane；Load and DC power supply pass through automatic controller respectively with anode and
Cathode is connected；Cathode chamber bottom is provided with water inlet, and water purification outlet and recoil outlet is arranged in top, and water inlet setting water flow is opened
It closes, safety valve is arranged in water purification outlet, and recoil outlet connection cathode chamber recoil valve, anode flushing valve, anode is arranged in anode chamber bottom
Liquidometer is arranged in outdoor, and reference electrode is arranged inside cathode chamber；Sealing cover is arranged in upper portion of anode chamber；
Anode uses metal material, is selected from one of iron and its alloy；
Cathode uses metal material or carbon materials, and metal material is selected from stainless steel；Carbon materials are selected from carbon felt, carbon
Paper, active carbon or amorphous carbon pricker dimension.
Preferably, anode uses pure iron and 35 steel.
It alternatively, can also be directly using anode chamber as only except anode chamber and cathode chamber such as above-mentioned building in parallel are outer
Vertical unit is embedded into cathode chamber；When in this way, diaphragm is fixed on the shell of anode chamber.
Preferably, anode chamber, cathode chamber, anode chamber's sealing cover use polypropylene, polyethylene, glass reinforced plastic, polytetrafluoroethylene (PTFE)
Or pmma material building.
Preferably, anode and cathode is the three-diemsnional electrode of sheet, rodlike, foam-like or particle building.
Preferably, diaphragm is protected towards cathode side using stainless (steel) wire, plastic wire.
Preferably, the load uses the resistance of 10-5000 Ω；Load connects with the anode of electro-chemical systems and cathode respectively
It connects, forms anodic oxidation corrosion and electronics, the denitrifying cell circuit of cathode are provided.
DC power supply uses linear direct current regulated power supply or non-linear D.C. regulated power supply；DC power supply using AC-DC or
DC-DC power module；DC power supply both can separate manual opening and closing, can also link with water flow switch, be opened and closed by automatic controller.
Further, DC power supply apply voltage be backward voltage, wherein positive pole connection electro-chemical systems cathode,
Cathode connects electro-chemical systems anode, forms backward voltage circuit.
Power supply control chip, the integrated electricity that the automatic controller can be coupled using subsidiary PLC control with reference electrode
Road controller composition；In addition, automatic controller can use control button panel, Multi-parameter data display panel.
Cathode chamber recoil valve, anode chamber's flushing valve can be using ball valve, shut-off valve or the solenoid valves manually or automatically controlled.
Reference electrode uses silver/silver chloride reference electrode or ORP electrode.
Water flow switch uses piston type, turbine type or baffle plate type water flow sensor.
Further, the utility model also provides the side using above-mentioned bioelectrochemical system purifying drinking water nitrate
Method, which is characterized in that described method includes following steps:
Step 1: using the bioelectrochemical system, during purifying drinking water nitrate, when water flow switch (11)
After detecting that drinking water enters system, electro-chemical systems cell circuit, nitrate reduction process are connected by automatic controller (8)
Cathode potential is controlled in 0-- 400mV(vs Ag/AgCl) between, when cathode potential is lower than-400mV(vs Ag/AgCl) when, from
After movement controller receives signal, cell circuit is disconnected, when cathode potential is increased to 0mV(vs Ag/AgCl) more than when, it is automatic to control
Device processed obtains signal and recloses system battery circuit；
Step 2: the purified water after cathode chamber nitrate reduction is discharged from treated water outlet；After longtime running, work as yin
When excessive microbial cells and other impurities are adhered in pole, need to carry out backwash operation.The recoil of bioelectrochemical system
Washing gap periods is 10-60 days, and each backwashing time is 0.1-2 minutes；In backwash process, water purification outlet valve is closed, is opened
Open waste water of the backwashing wastewater valve discharge containing impurity.
In the potential range of step 1, flows through the nitrate in cathode chamber drinking water and be reduced to nitrogen, nitrite
It is minimum with the accumulated concentrations of the by-products such as ammonia nitrogen；
Further, in step 1, in the cathodic potential range, nitrate can also be led to by abiotic reduction
The autotrophic denitrification flora of cathode growth and breeding is crossed to be restored.
Further, the utility model additionally provides a kind of control anodic oxidation corrosion rate and cathode potential is maintained to close
The reverse voltage restraint method of suitable range.
Further, in step 1, when applying backward voltage with DC power supply, positive pole connects electro-chemical systems yin
Pole, cathode connect electro-chemical systems anode, form backward voltage circuit, wherein the backward voltage between anode and cathode is in 0.1-
Between 0.5V.
Further, in step 1, the control of the automatically controlled device of application of backward voltage, when electro-chemical systems
After cell circuit disconnects, backward voltage circuit is started by automatic controller, applies backward voltage to electro-chemical systems to inhibit
The oxidation rate of anode.
Further, the utility model patent additionally provides the applying method of another backward voltage, i.e., cell circuit with
The control in backward voltage circuit is consistent, when electro-chemical systems cathode potential is increased to 0mV(vs Ag/AgCl) more than when, from
Movement controller starts cell circuit and backward voltage circuit simultaneously, when cathode potential is lower than -400mV(vs Ag/AgCl) when, together
When close cell circuit and backward voltage circuit.
Further, it after specified service life, when anodic oxidation is not enough to maintain the negative potential range of cathode, needs
Replace anode (1) and anolyte.System power supply is first closed, drinking water inlet valve is turned off, opens anode chamber's sealing cover, then
It opens anode chamber's flushing valve (10) discharge and is deposited on the indoor precipitate metal hydroxides of anode and remaining anolyte, then
It closes anode chamber's flushing valve (10),
Remaining anode is unloaded, the anode that more renews, new anolyte are to setting liquid level.After replacement, restarting system
System.
Further, when electro-chemical systems hydraulic pressure is more than 4.5kg, safety valve can releasing pressure automatically.
Further, anolyte is containing salt electrolyte, and salt content (in terms of NaCl) is 0.5-10%.
The invention be mainly used in family, school, hotel, office space drinking water nitrate field of purification.
The technical principle of the utility model is as follows:
In bioelectrochemical system of the metal material as sacrificial anode:
Anode reaction (M represents metal simple-substance):
M→M2++2e-
M2++2H2O→M(OH)2+2H+
Cathode reaction:
NO3 -+ 2H+ + 2e- →NO2 -+ H2O
NO2 -+6e-+8H+→N2↑+4H2O
O2+ 4e-+ 4H+→2H2O
2ClO-+2e-+4H+→Cl-+2H20
2H++2e-→H2
NO3 -+ 10H+ + 8e- →NH4 ++3H2O
The product of anode reaction generates hydroxide and is deposited in anode chamber, and the proton of generation passes through proton exchange membrane
Cathode is moved to, the indoor nitrate of cathode is successively reduced to nitrite by denitrification, is further reduced to nitrogen, by
The reduction of chlorine residue, oxygen can equally therefore occur in cathode chamber containing chlorine residue, oxygen in drinking water.Due to the anode of system
Oxidation corrosion is controlled, so that cathode produces hydrogen and is suppressed, reduces the generation of ammonia nitrogen to greatest extent.
Beneficial effect
Compared to existing technologies, the utility model has the following technical effect that
1, the anode and cathode of the utility model is completely separable by diaphragm, and uses different materials, optimizes
The environment of electrolyte, oxidation corrosion efficiency greatly improve；Chloride ion can destroy anode surface in the anolyte filled in anode chamber
The oxide passivation layer of package promotes the oxidation of anode, efficiently solves metal material in traditional drinking water purification process
The lower problem of activity.
2, the utility model had both solved the problems, such as that drinking water nitrate reduction lacked electron donor, while in turn avoiding gold
Belong to oxidation corrosion secondary pollution possible for drinking water, while also avoid zeroth order Fe nanometer particles reduction process in batches,
Bring troublesome operation defect is added in proportion.
3, the utility model controls the anodic attack speed in anode chamber's Inner electrolysis matter environment by the way of backward voltage
Rate extends anode life, while controlling cathode potential and being higher than the potential range for producing hydrogen.So that nitrate, Asia mainly occur for cathode
The reduction of nitrate and oxygen avoided the accumulation of ammonia caused by polyelectron.
4, the three-dimensional cathode of electro-chemical systems is filled in cathode chamber, guarantees the pollutants such as the nitrate in drinking water and electricity
The sufficient anti-nitration reaction of interpolar microbial flora.
5, electro-chemical systems the anode chamber and the cathode chamber has thoroughly prevented the production of anode chamber's internal oxidition using proton exchange membrane as diaphragm
Secondary pollution caused by object is migrated to cathode chamber.
6, the drinking water purified by the electro-chemical systems also can produce alkali negative ion water, beneficial to human health.
Detailed description of the invention
Attached drawing 1: the bioelectrochemical system structure chart of the utility model purifying drinking water nitrate
Wherein: (1) anode；(2) anode chamber；(3) cathode；(4) cathode chamber；(5) diaphragm；(6) it loads；(7) additional power source；
(8) automatic controller；(9) cathode chamber recoil valve；(10) anode chamber's flushing valve；(11) water flow switch；(12) safety valve；(13) positive
Pole room sealing cover；(14) reference electrode；(15) shell；(16) water inlet；(17) water purification outlet；(18) recoil outlet.
Specific embodiment
The utility model is further described below with reference to embodiment, but is not limited to the following example.
Embodiment 1: the building of bioelectrochemical system
Shell (long 240mm, wide 140mm, high 250mm) using polypropylene (PP) plate of 5mm thickness as electro-chemical systems,
The high 250mm dischargeable capacity 2.6L of middle-jiao yang, function of the spleen and stomach pole room 2 80mm wide long 130,130mm high 250mm 140mm wide long, the dischargeable capacity of cathode chamber 4
4.5L.Partition between anode chamber 2 and cathode chamber 4 is arranged diaphragm 5, diaphragm using proton exchange membrane (Nafion 117,140mm,
Wide 80mm), 5 lower end of diaphragm is away from housing bottom 20mm.Anode 1 uses 100 × 100 × 5mm pure iron plate, passes through titanium silk and titanium bolt
It is fixed on the sealing cover 13 of anode chamber 2, a flushing valve 10 is arranged in 2 bottom of anode chamber.Water inlet is arranged in 4 lower part of cathode chamber
16, top setting water purification outlet 17 and recoil outlet 18, recoil export 18 connection cathode chamber recoil valves 9, are arranged on water inlet line
Piston type water flow switch 11, cathode 3 use 1 layer or multilayer 100 × 200 × 5mm graphite felt, are spaced 2-10mm between graphite felt,
Graphite felt is fixed at the top of cathode chamber by titanium silk, bolt.One Ag/AgCl reference electrode 14, electrode wires are set in cathode chamber 2
It is also attached at the top of cathode chamber.Anode 1, cathode 3 are configured to cell circuit and anti-respectively with load 6, additional power source 7 respectively
To voltage circuit, two circuits and reference electrode are separately connected automatic controller 8.(referring to Figure of description 1)
Embodiment 2: the operation of bioelectrochemical system and the purification to drinking water
The bioelectrochemical system constructed using embodiment 1, is prepared the electrolyte (2%NaCl) of 2.5L, is injected into anode
Anode chamber is closed in interior.Bioelectrochemical system is connected to household drinking water pipeline, opens the water purification of bioelectrochemical system
Outlet valve, water flow switch detects water flow and starts bioelectrochemical system by automatic controller, starts in system and tames
In the process, municipal administration is colonized in bioelectrochemical system, is grown with the microorganism to survive in household drinking water pipeline and formed steady
Fixed denitrification flora.After domestication in 1-2 months, bioelectrochemical system reaches normal operation and imitates with drink water purifying
Fruit.
In the process of running, under the conditions of testing static flow velocity and continuous flow, the change of cathode potential under different applied voltages
Change.The result shows that the cathode potential of electro-chemical systems is positively retained at -400mV(vs Ag/AgCl under static flow velocity).Even
Under afterflow, cathode potential is positively retained at 0mV--400mV(vs Ag/AgCl) between.
Non-purified drinking water nitrate is between 7-12mg/L, after bioelectrochemical system purifies, nitrate concentration
For 0-0.5mg/L, between 0-0.5mg/L of ammonia nitrogen concentration, nitrite is not detected.
Non-purified drinking water residual chlorine concentration is between 0.05-0.5mg/L, after bioelectrochemical system purifies, chlorine residue
Concentration is 0.05mg/L or less.
Before drinking water is handled through electro-chemical systems, pH 7.5-8.0, ORP are in+200mV-+400mV, through the utility model
After electro-chemical systems purification, pH is greater than 8.5, ORP between 0- -200mV.
Embodiment 3: the longtime running and its backwash operation of bioelectrochemical system
Using the bioelectrochemical system of embodiment 1, drinking water pipeline longtime running is accessed, observes bioelectrochemical system
Under the conditions of different in flow rate, static and continuous flow, the loss of anode under system cathode potential change and longtime running.Experience 6
After operation in a month, iron anode and anolyte are replaced.In bioelectrochemical system operational process, every 1 month progress cathode
The backwash of room.Backwash operation process are as follows: close cathode chamber water purification valve, open cathode chamber recoil valve, backwashing time is
0.2 minute.
Embodiment 4: in addition to anode is using 35 steel, remaining is the same as embodiment 1
Processing result: after bioelectrochemical system purifies, nitrate concentration 0.1-0.5mg/L, ammonia nitrogen concentration 0.1-
Between 0.5mg/L, nitrite is not detected.
Comparative example 1: in addition to anode is using magnesium, remaining is the same as embodiment 1
Processing result: in bioelectrochemical system operational process, cathode potential is lower than -1000mV(vs Ag/AgCl), warp
After bioelectrochemical system purification, between nitrate concentration 0-0.2mg/L, ammonia nitrogen concentration 7-11mg/L, nitrate reduction base
Originally it is converted into ammonia nitrogen.
Comparative example 2: in addition to anode is using titanium plate, remaining is the same as embodiment 1
Processing result: in bioelectrochemical system operational process, cathode potential is higher than+200mV(vs Ag/AgCl), through life
After the purification of object electro-chemical systems, between nitrate concentration 7-12mg/L, ammonia nitrogen concentration 0-0.5mg/L, nitrate is not restored.
Comparative example 3: except the anode of bioelectrochemical system uses titanium plate, backward voltage changes into forward voltage (electricity
Source anode connects bioelectrochemical system anode, and cathode connects the cathode of bioelectrochemical system) outside, remaining is the same as embodiment 1
Processing result: in bioelectrochemical system operational process, forward voltage 2.0V, cathode potential is in -700mV--
800mV(vs Ag/AgCl) between, after bioelectrochemical system purifies, nitrate concentration 0.5-1.5mg/L, ammonia nitrogen concentration
Between 6-9mg/L.
From the above it can be seen that coming, the selected other metal materials of the utility model are removed when comparative example uses
When as anode, clean-up effect is worse compared to the clean-up effect of Tthe utility model system.
A kind of electro-chemical systems and purification method for purifying drinking water nitrate of the utility model have passed through
Specific example is described, and those skilled in the art can use for reference the content of the present invention, appropriate feed change, process conditions
Etc. links realize that corresponding other purposes, correlation change the content all without departing from the utility model, all similar replaces
Change and change it will become apparent to those skilled in the art that be considered as being included in the scope of the utility model it
It is interior.
Claims (8)
1. a kind of bioelectrochemical system for purifying drinking water nitrate, which is characterized in that the system comprises anodes
(1), anode chamber (2), cathode (3), cathode chamber (4), diaphragm (5), load (6), DC power supply (7), automatic controller (8), yin
Pole room recoil valve (9), anode chamber's flushing valve (10), water flow switch (11), safety valve (12), anode chamber's sealing cover (13), reference
Electrode (14), shell (15), water inlet (16), water purification outlet (17), recoil outlet (18)；
Its Anodic is located in anode chamber, and cathode is located in cathode chamber, is separated between anode chamber and cathode chamber by partition, in partition
Diaphragm is arranged in lower part, and diaphragm uses proton exchange membrane；Load and DC power supply pass through automatic controller respectively with anode and cathode
It is connected；Cathode chamber bottom is provided with water inlet, and water purification outlet is arranged in top and water flow switch is arranged in recoil outlet, water inlet,
Safety valve is arranged in water outlet, and recoil, which exports, connects cathode chamber recoil valve, the setting anode flushing valve of anode chamber bottom, inside cathode chamber
Reference electrode is set；Sealing cover is arranged in upper portion of anode chamber；
Anode uses metal material, is selected from one of iron and its alloy；
Cathode uses metal material or carbon materials, and metal material is selected from stainless steel；Carbon materials are selected from carbon felt, carbon paper, work
Property charcoal or amorphous carbon pricker dimension.
2. system according to claim 1, which is characterized in that anode uses pure iron and 35 steel.
3. system according to claim 1, which is characterized in that be directly embedded into cathode chamber using anode chamber as separate unit
It is interior；When in this way, diaphragm is fixed on the shell of anode chamber.
4. system according to claim 1, which is characterized in that anode chamber, cathode chamber, anode chamber's sealing cover use poly- third
Alkene, polyethylene, glass reinforced plastic, polytetrafluoroethylene (PTFE) or pmma material building.
5. system according to claim 1, which is characterized in that the load uses the resistance of 10-5000 Ω；Load difference
It is connect with the anode of electro-chemical systems with cathode, forms anodic oxidation corrosion and electronics, the denitrifying cell circuit of cathode are provided.
6. system according to claim 1, which is characterized in that DC power supply uses linear direct current regulated power supply or non-linear
D.C. regulated power supply；DC power supply uses AC-DC or DC-DC power module；DC power supply both can separate manual opening and closing, can also be with
Water flow switch linkage, is opened and closed by automatic controller.
7. system according to claim 1, which is characterized in that the automatic controller is using subsidiary PLC control and reference
Power supply control chip, the integrated circuit controller composition of electrode coupling.
8. system according to claim 1, which is characterized in that cathode chamber recoil valve, anode chamber's flushing valve using manually or
Ball valve, shut-off valve or the solenoid valve of automatic control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721760323.6U CN208378515U (en) | 2017-12-16 | 2017-12-16 | A kind of bioelectrochemical system for purifying drinking water nitrate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721760323.6U CN208378515U (en) | 2017-12-16 | 2017-12-16 | A kind of bioelectrochemical system for purifying drinking water nitrate |
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Family
ID=64979194
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108002518A (en) * | 2017-12-16 | 2018-05-08 | 傲自然成都生物科技有限公司 | A kind of bioelectrochemical system and purification method for purifying drinking water nitrate |
| CN111807476A (en) * | 2019-04-12 | 2020-10-23 | 江苏省疾病预防控制中心(江苏省公共卫生研究院) | Nitrite reduction device and method in household water purifier |
-
2017
- 2017-12-16 CN CN201721760323.6U patent/CN208378515U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108002518A (en) * | 2017-12-16 | 2018-05-08 | 傲自然成都生物科技有限公司 | A kind of bioelectrochemical system and purification method for purifying drinking water nitrate |
| CN108002518B (en) * | 2017-12-16 | 2023-11-17 | 傲自然成都生物科技有限公司 | Bioelectrochemical system and purification method for purifying nitrate in drinking water |
| CN111807476A (en) * | 2019-04-12 | 2020-10-23 | 江苏省疾病预防控制中心(江苏省公共卫生研究院) | Nitrite reduction device and method in household water purifier |
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