CN112320901A - Three-dimensional electrode Feton water treatment equipment and method - Google Patents
Three-dimensional electrode Feton water treatment equipment and method Download PDFInfo
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- CN112320901A CN112320901A CN202011285069.5A CN202011285069A CN112320901A CN 112320901 A CN112320901 A CN 112320901A CN 202011285069 A CN202011285069 A CN 202011285069A CN 112320901 A CN112320901 A CN 112320901A
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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
- C02F1/46109—Electrodes
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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
- C02F1/46109—Electrodes
- C02F1/46114—Electrodes in particulate form or with conductive and/or non conductive particles between them
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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
- C02F1/46176—Galvanic cells
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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
- C02F1/46109—Electrodes
- C02F2001/46133—Electrodes characterised by the material
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/026—Fenton's reagent
Abstract
The invention discloses a three-dimensional electrode Feton water treatment device and a method, wherein the three-dimensional electrode Feton water treatment device comprises: a container adapted to contain wastewater; an anode plate disposed in the wastewater; a cathode plate placed on the wastewater; a particle electrode disposed in the wastewater; a microporous aeration device adapted to provide air to the pellet electrode such that the pellet electrode is mixed with the air; and the power supply is electrically connected to the anode plate and the cathode plate. The water treatment device adopts a three-dimensional electrode method to treat wastewater, and compared with a two-dimensional electrode method for electrolysis, the water treatment device can increase the volume of wastewater, the surface and volume ratio of the motor is greatly increased, the current efficiency is high, and the degradation rate of the wastewater is high.
Description
Technical Field
The invention relates to the field of water treatment, and further relates to three-dimensional electrode Feton water treatment equipment and a method.
Background
The fuel wastewater has the characteristics of various organic matters, poor biodegradability, high COD and chroma, large first-level discharge amount and the like, and is difficult to degrade by using a transmission treatment method.
Among the methods for treating fuel wastewater, the electrocatalytic oxidation method has the advantages of economy, high efficiency, environmental friendliness and the like. However, it should be noted that the electrocatalytic oxidation method usually uses a two-dimensional electrode method to treat the fuel wastewater at present, but the two-dimensional electrode method has a poor effect of degrading the wastewater solution due to the small electrode surface volume.
In view of the foregoing, there is a need for improved methods of treating conventional fuel-based wastewater.
Disclosure of Invention
In view of the above technical problems, an object of the present invention is to provide a three-dimensional electrode Feton water treatment apparatus and method, in which a three-dimensional electrode method is adopted to treat wastewater, and compared with a two-dimensional electrode method, electrolysis can be performed, the surface-to-volume ratio of a motor is greatly increased, the current efficiency is high, and the degradation rate of wastewater is high.
In order to achieve the above object, an object of the present invention is to provide a three-dimensional electrode Feton water treatment apparatus comprising:
a container adapted to contain wastewater;
an anode plate disposed in the wastewater;
a cathode plate placed on the wastewater;
a particle electrode disposed in the wastewater;
a microporous aeration device adapted to provide air to the pellet electrode such that the pellet electrode is mixed with the air;
and the power supply is electrically connected to the anode plate and the cathode plate.
Preferably, the container further has a partition plate therein, the partition plate dividing the accommodating space in the container into an upper space and a lower space; the clapboard is provided with aeration micropores; the particle electrode is arranged in the upper space; the micro-porous aeration device further comprises an air pump communicated with the lower space and used for providing air into the lower space.
Preferably, the particulate electrode is a chalcopyrite particulate.
Preferably, the particle diameter of the particle electrode is 75 μm.
Preferably, the input amount of the particle electrode is 8 mg/L.
Preferably, the anode plate and the cathode plate are porous graphite electrodes, respectively, and the distance between the anode plate and the cathode plate is 3 cm.
Preferably, the power supply is capable of providing a steady current of 0.5A.
Preferably, the PH of the wastewater in the vessel is in the range of 3-4.
According to another aspect of the invention, the invention further provides a three-dimensional electrode Feton water treatment method comprising:
placing the anode plate, the cathode plate and the particle electrode in the same container filled with wastewater; wherein the particle electrode is arranged on a separator with aeration micropores, and the separator is provided with aeration micropores;
supplying air to a lower space under the partition plate such that the air is mixed with the pellet electrode through the aeration micro-holes;
energizing the anode plate and the cathode plate.
The three-dimensional electrode Feton water treatment equipment and the method provided by the invention have at least one of the following beneficial effects:
1. according to the three-dimensional electrode Feton water treatment equipment and the three-dimensional electrode Feton water treatment method, the three-dimensional electrode method is adopted for treating the wastewater, compared with the two-dimensional electrode method for electrolysis, the three-dimensional electrode Feton water treatment equipment can be increased, the surface to volume ratio of the motor is greatly increased, the current efficiency is high, and the degradation rate of the wastewater is high.
2. According to the three-dimensional electrode Feton water treatment equipment and the method, the anode plate and the cathode plate both adopt the porous graphite plate as the electrode, the surface area of the electrode is increased, the adjustable range of the plate electrode voltage is larger under the condition of keeping the current density consistent, a uniform electric field can be formed between the two electrode plates, the electric field lines are even and equidistant, and the electric field distribution between the electrode plates is a curve.
3. In the three-dimensional electrode Feton water treatment equipment and the method provided by the invention, the third electrode adopts chalcopyrite particles, and each particle of the chalcopyrite can form a pair of multi-polarity microelectrodes in the reaction process, which is equivalent to that a plurality of micro electrolytic tanks are arranged in the electrolytic tank to degrade organic matters. At the same time, H is produced at the cathode during electrolysis2O2Fe in chalcopyrite2+Catalysis H2O2The generated hydroxyl free radicals oxidize and degrade organic matters to achieve better treatment effect.
Drawings
The above features, technical features, advantages and modes of realisation of the present invention will be further described in the following detailed description of preferred embodiments thereof, which is to be read in connection with the accompanying drawings.
FIG. 1 is a schematic structural view of a three-dimensional electrode Feton water treatment apparatus according to a preferred embodiment of the present invention;
FIG. 2 is a diagram showing the effect of wastewater treatment in the three-dimensional electrode Feton water treatment facility according to the preferred embodiment of the present invention.
The reference numbers illustrate:
the device comprises a container 1, an upper space 11, a lower space 12, an anode plate 2, a cathode plate 3, a particle electrode 4, a micropore aeration device 5, an air pump 51, a power supply 6, a partition plate 7, aeration micropores 70 and a sampling head 8.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.
For the sake of simplicity, only the parts relevant to the invention are schematically shown in the drawings, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
In this context, it is to be understood that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not intended to indicate or imply relative importance.
Example 1
Referring to the accompanying drawings 1-2 of the specification, the invention provides three-dimensional electrode Feton water treatment equipment, chalcopyrite particles are used as third electrodes for filling, and the particle electrodes are introduced into a Fenton system, so that the surface area-to-volume ratio of the electrodes can be increased, the current efficiency is improved, and the degradation rate of wastewater is accelerated.
Referring to the attached figure 1 of the specification, specifically, the three-dimensional electrode Feton water treatment equipment comprises a container 1, an anode plate 2, a cathode plate 3, a particle electrode 4, a microporous aeration device 5 and a power supply 6. Said container 1 is adapted to contain waste water therein; the anode plate 2, the cathode plate 3 and the particle electrode 4 are respectively placed in the wastewater; the micro-porous aeration device 5 is adapted to provide air to the pellet electrode 4 such that the pellet electrode 4 is mixed with the air; the power source 6 is electrically connected to the anode plate 2 and the cathode plate 3 and is adapted to provide electrical energy to the anode plate 2 and the cathode plate 3.
It is to be noted that the present invention introduces the pellet electrode 4 into the Fenton and the air is sufficiently mixed with the pellet electrode 4 by the micro-porous aeration device 5. After the anode plate 2 and the cathode plate 3 are electrified, the particle electrodes 4 can mutually form a plurality of micro-electrolytic cells, so that the electric field effect is strengthened, and the reaction rate and the treatment effect are improved. The anode plate 2 and the cathode plate 3 are plate electrodes respectively, so that the surface area of the electrodes is increased, and the adjustable range of current is enlarged. The particle electrode 4 is used as a filling electrode, so that the migration distance of ions is shortened, and the reaction rate and the treatment effect are improved.
Referring to the attached fig. 1 of the specification, the container 1 is further provided with a partition 7, and the partition 7 divides the accommodating space in the container 1 into an upper space 11 and a lower space 12; the clapboard 7 is provided with aeration micropores 70; the particle electrode 4 is placed in the upper space 11; the micro-porous aeration apparatus 5 further comprises an air pump 51 communicating with the lower space 12 for supplying air into the lower space 12.
It should be noted that, during the operation of the microporous aeration apparatus 5, the air pump 51 can inject air into the lower space 12, and the injected air can pass through the aeration micropores 70 on the partition 7 into the upper space 11 and contact with the particle electrodes 4 to aerate and stir the particle electrodes 4.
Referring to the attached figure 1 of the specification, the three-dimensional electrode Feton water treatment equipment further comprises a sampling head 8 positioned on the side wall of the container 1, and liquid in the container 1 can be taken out through the sampling head 8.
Preferably, the particle electrode 4 is a chalcopyrite particle.
Preferably, the particle diameter of the particle electrode 4 is 75 μm.
Preferably, the input amount of the particle electrode 4 is 8 mg/L.
Preferably, the anode plate 2 and the cathode plate 3 are porous graphite electrodes, respectively, and the distance between the anode plate 2 and the cathode plate 3 is 3 cm.
Preferably, the power supply 6 is capable of providing a steady current of 0.5A.
Preferably, the PH of the wastewater in the vessel is in the range of 3-4.
During the reaction process, a large amount of organic matters are accumulated on the surface of the chalcopyrite particle electrode, the mass concentration of the organic matters is higher than that of the solution, each particle of the chalcopyrite can form a pair of multi-polarity microelectrodes, and the method is equivalent to that a plurality of micro electrolytic tanks are arranged in the electrolytic tank to degrade the organic matters. With generation of H at the cathode during electrolysis2O2Fe in chalcopyrite2+Catalysis H2O2Generating hydroxyl free radicals to oxidize and degrade the organic matters.
Example 2
According to another aspect of the invention, the invention further provides a three-dimensional electrode Feton water treatment method comprising:
placing an anode plate 2, a cathode plate 3 and a particle electrode 4 in the same container 1 filled with wastewater; wherein the particle electrode 4 is disposed on the separator 7 having the aeration micro-holes 70;
supplying air to the lower space 12 below the partition 7 so that the air is mixed with the pellet electrode 4 through the aeration micro-holes 70;
electricity is supplied to the anode plate 2 and the cathode plate 3.
Preferably, the particle electrode 4 is a chalcopyrite particle.
Preferably, the particle diameter of the particle electrode 4 is 75 μm.
Preferably, the input amount of the particle electrode 4 is 8 mg/L.
Preferably, the anode plate 2 and the cathode plate 3 are porous graphite electrodes, respectively, and the distance between the anode plate 2 and the cathode plate 3 is 3 cm.
Preferably, the power supply 6 is capable of providing a steady current of 0.5A.
Preferably, the PH of the wastewater in the vessel is in the range of 3-4.
In the test process, the chalcopyrite particles are pretreated, and the chalcopyrite is screened and then immersed in the dye wastewater for 48 hours to remove the interference of the adsorption effect on the result.
500ml of dye wastewater is taken and placed in an electrolytic bath, pretreated chalcopyrite particles are added as electrodes, NaOH or dilute H is dripped into the wastewater2SO4The solution was adjusted to pH.
The anode plate 2 and the cathode plate 3 are installed and fixed and electrified, and the microporous aeration device 5 is opened for aeration.
Sampling at regular time in the reaction process, adjusting the pH of a water sample to 9-10 by NaOH, standing, filtering to obtain a clear filtrate, measuring the COD value and the absorbance, and finally calculating the COD removal rate and the chroma removal rate.
The principle of the method is as follows: the divalent iron ions generated by the anodic oxidation reaction and the hydrogen peroxide generated by the cathodic reduction reaction react to generate hydroxyl radicals which are strong oxidizing substances, and the reaction formula is as follows:
CuFeS2+8H2O2→Cu2++Fe3++8H2O+2SO4 2-
Fe3++H2O2→Fe2++·HO2+H+
CuFeS2+16Fe3++8H2O→Cu2++17Fe2++2SO42-+16H+
Fe2++H2O2→Fe3++OH-+·OH
referring to the specification and the attached figure 2, the effect graph after the three-dimensional electrode Feton water treatment method provided by the invention is adopted to treat fuel wastewater is shown.
It should be noted that, the anode plate 2 and the cathode plate 3 provided by the present invention both use the porous graphite plate as the electrode, which increases the surface area of the electrode, and under the condition of keeping the current density consistent, the adjustable range of the plate electrode voltage is larger, a uniform electric field is formed between the two electrode plates, the electric field lines are equally spaced, and the electric field distribution between the electrode plates is a curve.
The third electrode provided by the invention adopts chalcopyrite particles, and each particle of the chalcopyrite can form a pair of multi-polarity microelectrodes in the reaction process, which is equivalent to that a plurality of micro electrolytic tanks are arranged in the electrolytic tank to degrade organic matters. At the same time, H is produced at the cathode during electrolysis2O2Fe in chalcopyrite2+Catalysis H2O2The generated hydroxyl free radicals oxidize and degrade organic matters to achieve better treatment effect.
It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.
Claims (10)
1. Three-dimensional electrode Feton water treatment facilities, characterized by includes:
a container adapted to contain wastewater;
an anode plate disposed in the wastewater;
a cathode plate placed on the wastewater;
a particle electrode disposed in the wastewater;
a microporous aeration device adapted to provide air to the pellet electrode such that the pellet electrode is mixed with the air;
and the power supply is electrically connected to the anode plate and the cathode plate.
2. The three-dimensional electrode Feton water treatment apparatus as claimed in claim 1, wherein said container further has a partition plate therein, said partition plate dividing a containing space in said container into an upper space and a lower space; the clapboard is provided with aeration micropores; the particle electrode is arranged in the upper space; the micro-porous aeration device further comprises an air pump communicated with the lower space and used for providing air into the lower space.
3. The three-dimensional electrode Feton water treatment apparatus according to claim 1 wherein the particulate electrode is chalcopyrite particulate.
4. The three-dimensional electrode Feton water treatment plant according to claim 3 wherein the particle size of the particle electrode is 75 μm.
5. The three-dimensional electrode Feton water treatment device according to claim 3, wherein the input amount of the particle electrode is 8 mg/L.
6. The three-dimensional electrode Feton water treatment plant according to claim 1 wherein said anode plate and said cathode plate are each porous graphite electrodes, the distance between said anode plate and said cathode plate being 3 cm.
7. The three-dimensional electrode Feton water treatment apparatus according to claim 1 wherein the power supply is capable of providing a steady current of 0.5A.
8. The three-dimensional electrode Feton water treatment plant according to claim 1 wherein the PH of the wastewater in said container is in the range of 3-4.
9. The three-dimensional electrode Feton water treatment method is characterized by comprising the following steps:
placing the anode plate, the cathode plate and the particle electrode in the same container filled with wastewater; wherein the particle electrode is arranged on a separator with aeration micropores, and the separator is provided with aeration micropores;
supplying air to a lower space under the partition plate such that the air is mixed with the pellet electrode through the aeration micro-holes;
energizing the anode plate and the cathode plate.
10. The three-dimensional electrode Feton water treatment process of claim 9 wherein the particulate electrode is chalcopyrite particulate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011285069.5A CN112320901A (en) | 2020-11-17 | 2020-11-17 | Three-dimensional electrode Feton water treatment equipment and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011285069.5A CN112320901A (en) | 2020-11-17 | 2020-11-17 | Three-dimensional electrode Feton water treatment equipment and method |
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| CN112320901A true CN112320901A (en) | 2021-02-05 |
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| CN202011285069.5A Pending CN112320901A (en) | 2020-11-17 | 2020-11-17 | Three-dimensional electrode Feton water treatment equipment and method |
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