CN112390373A - Constructed wetland sewage treatment device and method based on aeration and high-voltage pulse discharge - Google Patents
Constructed wetland sewage treatment device and method based on aeration and high-voltage pulse discharge Download PDFInfo
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- CN112390373A CN112390373A CN202011253965.3A CN202011253965A CN112390373A CN 112390373 A CN112390373 A CN 112390373A CN 202011253965 A CN202011253965 A CN 202011253965A CN 112390373 A CN112390373 A CN 112390373A
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- 239000010865 sewage Substances 0.000 title claims abstract description 81
- 238000005273 aeration Methods 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 81
- 229910052751 metal Inorganic materials 0.000 claims abstract description 81
- 239000011521 glass Substances 0.000 claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 230000005611 electricity Effects 0.000 claims abstract 2
- 238000003756 stirring Methods 0.000 claims description 9
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
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- 239000007789 gas Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
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- 238000013021 overheating Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
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- 239000002351 wastewater Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
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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
- C02F1/4608—Treatment of water, waste water, or sewage by electrochemical methods using electrical discharges
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
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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
- C02F7/00—Aeration of stretches of water
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Organic Chemistry (AREA)
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- Hydrology & Water Resources (AREA)
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Abstract
The application provides an artificial wetland sewage treatment plant based on aeration and high-voltage pulse discharge includes: the upper part is provided with an accommodating cavity and a discharging device; wherein, the accommodating cavity is internally provided with an artificial wet stratum layer, a sewage layer and an aeration layer from top to bottom; the discharge electrode is inserted into and penetrates through the artificial wet stratum to the sewage layer; the discharge electrode includes: a negative electrode and a positive electrode; the negative electrode comprises a conductive metal tube arranged in the sewage layer; the positive electrode comprises a metal lead, and the metal lead extends to the central position of the conductive metal tube; the metal wire is wrapped by a glass tube, and the discharge tip of the metal wire is wrapped by a glass sphere; when power is supplied, high voltage electricity penetrates through the air in the glass tube from the discharge tip of the anode and passes through the glass ball to discharge to the surrounding conductive metal tubes, so that the conventional pollution problem is solved, organic matters which are difficult to degrade in water can be efficiently removed, and the complete mineralization process of the organic matters is accelerated.
Description
Technical Field
The application relates to the technical field of water environment pollution treatment, in particular to an artificial wetland sewage treatment device and method based on aeration and high-voltage pulse discharge.
Background
The artificial wetland is widely applied in the field of sewage centralized treatment, the high-efficiency aeration technology can greatly improve the content of dissolved oxygen in water, and the propagation of aerobic microorganisms is facilitated, so that the sewage treatment effect of the artificial wetland is better. However, in recent years, research and attention on a plurality of methods for treating refractory organic matters in water cannot be effectively solved, water molecules can be ionized into a large number of OH and the like with extremely strong oxidizing capability by high-voltage pulse discharge, the refractory organic matters in water are oxidized and finally mineralized into H2O and CO2, the efficiency is greatly improved, and the problems that the period for treating the refractory organic matters is too long and the efficiency is low under the current technology and process conditions of artificial wetlands and the like are solved.
At present, high-voltage pulse discharge is not widely applied because the industrial application is not mature, especially in the field of water treatment. The current discharge modes include gas phase discharge, liquid phase discharge and gas-liquid two-phase discharge. The energy required by gas phase discharge is low, a passage can be formed between the electrodes by air breakdown, and air molecules around the electrodes, especially between the electrodes, can be ionized under the action of a high-voltage electric field. In the field of water treatment, if electrodes are placed in liquid, liquid phase discharge is difficult to form an effective electric field due to the fact that the liquid molecular distance is far larger than the molecular distance in gas, and a high-voltage power supply with the same power is difficult to form a plasma. The gas-liquid two-phase discharge is that one electrode (usually an anode) is placed in the air, the other electrode is placed in the liquid, an electric field can be effectively formed, oxygen in the gas is ionized to form ozone, water molecules are ionized at the interface between the air and the liquid to form free radicals with high oxidizability such as OH, macromolecular organic components in the liquid are degraded through the oxidizing substances, and the gas-liquid discharge is considered to be the most effective high-voltage discharge form at present. The disadvantage of degrading the refractory organics in the water is that the time required for complete mineralization is long and unnecessary.
Disclosure of Invention
Aiming at the problems, the application provides the artificial wetland sewage treatment device and the method which can solve the conventional pollution problem, can efficiently remove organic matters which are difficult to degrade in water and can accelerate the complete mineralization process of the organic matters.
The application provides an artificial wetland sewage treatment plant based on aeration and high-voltage pulse discharge includes: the upper part is provided with an accommodating cavity and a discharging device; wherein, the accommodating cavity is internally provided with an artificial wet stratum layer, a sewage layer and an aeration layer from top to bottom; the discharge electrode is inserted into and penetrates through the artificial wet stratum to the sewage layer; the discharge electrode includes: a negative electrode and a positive electrode; the negative electrode comprises a conductive metal tube arranged in the sewage layer; the positive electrode comprises a metal lead, and the metal lead extends to the central position of the conductive metal tube; the metal wire is wrapped by a glass tube, and the discharge tip of the metal wire is wrapped by a glass sphere; when power is supplied, high voltage is discharged from the discharge tip of the anode through the air in the glass tube and through the glass ball to the surrounding conductive metal tube.
Optionally, the artificial wet formation comprises: wetland bottom mud and wetland plants planted on the wetland bottom mud;
the bottom of the artificial wet stratum is provided with a water permeable plate to be separated from the sewage layer; external sewage seeps through the artificial wet ground layer and enters the sewage layer through the water permeable plate.
Optionally, the aeration layer comprises: a plurality of aeration devices; each aeration device comprises: the two conductive metal pipes are vertically crossed to form four aeration short pipes extending along the center of the vertical intersection point, wherein each aeration short pipe is provided with a plurality of small openings in the same direction.
Optionally, all aeration devices are supplied with aeration gas by one aeration pipe; the vertical intersection point of the two conductive metal pipes is communicated with the aeration pipe; the aeration pipe uses aeration gas as power to rotationally stir the sewage and stirs aeration bubbles into the sewage.
Optionally, the discharge electrode further comprises: the electrode fixing device is inserted into and penetrates through the artificial wet stratum to a sewage layer; the conductive metal pipe is connected to the bottom of the electrode fixing device to be placed in the sewage layer.
Optionally, the constructed wetland sewage treatment plant further comprises: a high voltage pulse power supply; the conductive metal tube is led out to the outside by a lead and is connected with a grounding cathode of a high-voltage pulse power supply; the metal lead is connected with the anode of the high-voltage pulse power supply.
Optionally, the electrode fixing device is a circular tube made of PVC; the metal lead is a metal copper wire;
the conductive metal pipe is made of stainless steel.
Optionally, the conductive metal tube has an inner diameter of 4 cm; the length of the conductive metal tube is 5 cm; the inner diameter of the glass tube is 0.6cm, and the inside of the glass tube contains air; the diameter of the glass sphere is 1 cm.
Alternatively, the electrode holder has a plurality of fixing points, and the metal wire and the glass tube constituting the positive electrode are fixed at a central position in the electrode holder by an insulating material.
The application also provides an artificial wetland sewage treatment method based on aeration and high-voltage pulse discharge, which comprises the following steps: a sewage layer is arranged at the lower part of the artificial wetland; an aeration device and a discharge electrode are arranged in the sewage layer; a conductive metal tube placed in the sewage is used as a negative electrode of the discharge electrode; the metal lead wrapped by the glass is used as the anode of the discharge electrode and is arranged in the center of the conductive metal tube, wherein the discharge tip of the metal lead is wrapped by the glass sphere; stirring the sewage by using an aeration device to enable the sewage and aeration bubbles to enter the conductive metal pipe area; the high voltage penetrates through the air in the glass tube from the discharge tip of the anode, passes through the glass sphere and discharges to the surrounding conductive metal tube so as to be degraded by sewage.
This application locates artifical wet underground with aeration equipment, provides a large amount of bubbles, under the liquid environment of a large amount of bubbles, through applying high-voltage pulse power, forms the gas-liquid discharge, and the bubble that produces high-efficient aeration is through the mode of stirring the water more abundant and sewage contact to it is favorable to the degradation of waste water to exist in the discharge area. Meanwhile, the discharge anode configuration is improved, a high-voltage pulse discharge system is formed under the condition that the power of a power supply is not changed, and finally, a more effective water treatment system is formed by coupling high-voltage pulse discharge with the high-efficiency aeration artificial wetland;
the improved discharge anode structure can ensure that the anode is in a gas medium wrapped by the glass sphere, the sewage to be treated is between the glass sphere and the cathode area, and the gas-liquid discharge has the advantages that the gas density is far less than that of liquid, the discharge treatment effect can be realized under lower power and voltage, and the energy is saved; the method can solve the conventional pollution problem, can efficiently remove organic matters which are difficult to degrade in water, and can accelerate the complete mineralization process of the organic matters through the artificial wetland.
Drawings
Fig. 1 is a schematic structural view of an artificial wetland sewage treatment device provided in an embodiment of the application;
FIG. 2 is a schematic structural view of an aeration apparatus provided in an embodiment of the present application;
fig. 3 is a schematic partial structural view of a discharge electrode provided in an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The following description, with reference to the accompanying drawings, is provided to facilitate a comprehensive understanding of various embodiments of the application as defined by the claims and their equivalents; these embodiments include various specific details for ease of understanding, but these are to be considered exemplary only. Accordingly, those skilled in the art will appreciate that various changes and modifications may be made to the various embodiments described herein without departing from the scope and spirit of the present application. In addition, descriptions of well-known functions and constructions will be omitted herein for brevity and clarity.
The terms and phrases used in the following specification and claims are not to be limited to the literal meaning, but are merely for the clear and consistent understanding of the application. Accordingly, it will be appreciated by those skilled in the art that the description of the various embodiments of the present application is provided for illustration only and not for the purpose of limiting the application as defined by the appended claims and their equivalents.
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings in some embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It is to be understood that the terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only, and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items. The expressions "first", "second", "the first" and "the second" are used for modifying the corresponding elements without regard to order or importance, and are used only for distinguishing one element from another element without limiting the corresponding elements.
As shown in fig. 1, the present application provides an artificial wetland sewage treatment apparatus, comprising: an accommodating cavity 1 with an opening at the upper part and a discharge electrode 2; wherein, an artificial wet stratum layer 11, a sewage layer 12 and an aeration layer 13 are respectively arranged in the accommodating cavity 1 from top to bottom; the discharge electrode 2 is inserted into and penetrates through the artificial wetland layer 11 to the sewage layer 12; the discharge electrode 2 includes: an anode 21 and a cathode 22; the negative electrode 21 comprises a conductive metal tube 211 placed in the sewage layer; the positive electrode 22 comprises a metal wire 221, and the metal wire 221 extends to the central position of the conductive metal tube 211; the metal wire 221 is wrapped by a glass tube 222, and the discharge tip of the metal wire 221 is wrapped by a glass sphere 223; when power is supplied, high voltage is discharged from the discharge tip of the positive electrode 22 through the air in the glass tube 222, through the glass sphere 223, and to the surrounding conductive metal tube 211.
The parameters of the high-voltage power supply are shown in table 1, the high-voltage power supply is a high-voltage low-power pulse power supply (the parameters such as the electrode spacing and the like of the invention are verified by experiments to be suitable for the pulse power supply, the size of the electrode can be properly adjusted according to the power supply voltage and power), when power is supplied, high voltage penetrates through air in the glass tube from the tip of the positive electrode, penetrates through the glass sphere to discharge to the surrounding stainless steel metal tube, and a dielectric barrier discharge mode is adopted to discharge (the glass is used as an insulating dielectric barrier). The discharge treatment sewage area is the area in the metal cathode tube. Along with continuous aeration bubbles floating to a treatment area, simultaneously, the stirred water body continuously flows to enable sewage to continuously enter the area, and some organic wastes which are difficult to degrade can be degraded in the area, the main principle is that discharge electrolysis water molecules generate a large amount of active free radical components (OH is the main component) with short persistence and extremely high oxidizability, and meanwhile, when the micro bubbles of high-efficiency aeration exist in a discharge area, oxygen molecules in gas can be activated into ozone for oxidation, which is a secondary mechanism, and the existence of the bubbles is favorable for electric energy transmission due to better gas-liquid discharge effect.
TABLE 1 high-Voltage pulsed Power supply parameters
| Parameters of power supply | High-voltage pulse power supply |
| Output peak voltage | 0 to 45kV adjustable (effective adjusting range 10 to 45kV) |
| Output peak power | 4kW |
| Frequency of | 30-200 Hz continuously adjustable |
| Pulse width | About 1us |
| Output protection | Output over-voltage, output over-current, output imbalance, load arcing |
| Input protection | Input over-voltage, input under-voltage, input over-current |
| Safety protection | Earth protection, earth leakage protection, external control protection, overheating |
| Protection response time | 1us |
| Input pair shell resistor | ≥20MΩ |
| Input pair shell pressure resistance | 2000V/1min |
| Rate of load regulation | 0.5％ |
| Protective function | Inputting overvoltage and undervoltage; output overvoltage, overcurrent and short circuit; overheating of the whole machine |
| Efficiency of | ≥85％ |
| Complete machine overheating protection threshold | 80～85℃ |
| Insulation resistance | ≥20M |
| Mean time between failures | ≥10000h |
Optionally, the artificial wet ground layer 11 comprises: wetland bottom sediment 111 and wetland plants 112 planted on the wetland bottom sediment 111; a water permeable plate 113 is provided at the bottom of the artificial wet ground layer 11 to be separated from the sewage layer 12; the external sewage permeates the artificial wet ground 11 and enters the sewage layer 12 through the water permeable plate 113.
Optionally, the aeration layer 13 comprises: a plurality of aeration devices 131; each aeration device 131 includes: the two conductive metal pipes are vertically crossed to form four aeration short pipes extending along the center of the vertical intersection point, wherein each aeration short pipe is provided with a plurality of small openings in the same direction.
Alternatively, all aeration devices 131 are supplied with aeration gas by one aeration pipe 132; the vertical intersection point of the two conductive metal pipes is communicated with the aeration pipe 132; the aeration pipe 132 rotationally agitates the sewage with the aeration gas as a power and stirs the aeration bubbles into the sewage.
Optionally, the discharge electrode 2 further includes: an electrode fixing device 23, wherein the electrode fixing device 23 is inserted into and penetrates through the artificial wetland layer 11 to the sewage layer 12; the conductive metal pipe 211 is connected to the bottom of the electrode fixing device 23 to be placed in the sewage layer 12.
Optionally, the constructed wetland sewage treatment plant further comprises: a high-voltage pulse power supply 3; the conductive metal tube 211 is led out to the outside by a lead 4 and is connected with the grounding negative pole of the high-voltage pulse power supply 3; the metal wire 221 is connected to the positive electrode of the high-voltage pulse power supply 3.
Optionally, the electrode fixing device 23 is a circular tube made of PVC; the metal wire 221 is a metal copper wire; the conductive metal tube 211 is made of stainless steel.
Optionally, the inner diameter of the conductive metal tube 211 is 4 cm; the length of the conductive metal tube 211 is 5 cm; the inner diameter of the glass tube 222 is 0.6cm, and the inside thereof contains air; the diameter of the glass sphere 223 is 1 cm.
Alternatively, there are a plurality of fixing points in the electrode fixture 23, and the metal wire 221 and the glass tube 222 constituting the positive electrode 22 are fixed at the center position of the electrode fixture 23 by an insulating substance.
The application also provides an artificial wetland sewage treatment method, which comprises the following steps: a sewage layer is arranged at the lower part of the artificial wetland; an aeration device and a discharge electrode are arranged in the sewage layer; a conductive metal tube placed in the sewage is used as a negative electrode of the discharge electrode; the metal lead wrapped by the glass is used as the anode of the discharge electrode and is arranged in the center of the conductive metal tube, wherein the discharge tip of the metal lead is wrapped by the glass sphere; stirring the sewage by using an aeration device to enable the sewage and aeration bubbles to enter the conductive metal pipe area; the high voltage penetrates through the air in the glass tube from the discharge tip of the anode, passes through the glass sphere and discharges to the surrounding conductive metal tube so as to be degraded by sewage.
This application locates artifical wet underground with aeration equipment, provides a large amount of bubbles, under the liquid environment of a large amount of bubbles, through applying high-voltage pulse power, forms the gas-liquid discharge, and the bubble that produces high-efficient aeration is through the mode of stirring the water more abundant and sewage contact to it is favorable to the degradation of waste water to exist in the discharge area. Meanwhile, the discharge anode configuration is improved, a high-voltage pulse discharge system is formed under the condition that the power of a power supply is not changed, and finally, a more effective water treatment system is formed by coupling high-voltage pulse discharge with the high-efficiency aeration artificial wetland;
the improved discharge anode structure can ensure that the anode is in a gas medium wrapped by the glass sphere, the sewage to be treated is between the glass sphere and the cathode area, and the gas-liquid discharge has the advantages that the gas density is far less than that of liquid, the discharge treatment effect can be realized under lower power and voltage, and the energy is saved; the method can solve the conventional pollution problem, can efficiently remove organic matters which are difficult to degrade in water, and can accelerate the complete mineralization process of the organic matters through the artificial wetland.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features. The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. Constructed wetland sewage treatment plant based on aeration and high-voltage pulse discharge, its characterized in that includes:
an accommodating cavity (1) with an opening at the upper part and a discharge electrode (2);
wherein, an artificial wet stratum layer (11), a sewage layer (12) and an aeration layer (13) are respectively arranged in the accommodating cavity (1) from top to bottom;
the discharge electrode (2) is inserted into and penetrates through the artificial wet ground layer (11) to a sewage layer (12);
the discharge electrode (2) includes: a negative electrode (21) and a positive electrode (22);
the negative electrode (21) comprises a conductive metal tube (211) arranged in a sewage layer;
the positive electrode (22) comprises a metal lead (221), and the metal lead (221) extends to the central position of the conductive metal tube (211);
the metal lead (221) is wrapped by a glass tube (222), and the discharge tip of the metal lead (221) is wrapped by a glass sphere (223);
when power is supplied, high voltage electricity is discharged from the discharge tip of the positive electrode (22) through the air in the glass tube (222) and through the glass sphere (223) to the surrounding conductive metal tube (211).
2. The constructed wetland sewage treatment plant of claim 1,
the artificial wet formation (11) comprises: wetland bottom mud (111) and wetland plants (112) planted on the wetland bottom mud (111);
a water permeable plate (113) is arranged at the bottom of the artificial wet ground layer (11) to be separated from the sewage layer (12);
external sewage seeps through the artificial wetland layer (11) and enters the sewage layer (12) through the water permeable plate (113).
3. The constructed wetland sewage treatment plant according to claim 1, wherein the aeration layer (13) comprises: a plurality of aeration devices (131);
each aeration device (131) comprises: the two conductive metal pipes are vertically crossed to form four aeration short pipes extending along the center of the vertical intersection point, wherein each aeration short pipe is provided with a plurality of small openings in the same direction.
4. The constructed wetland sewage treatment plant of claim 3,
all the aeration devices (131) are provided with an aeration pipe (132) for conveying aeration gas;
the vertical intersection point of the two conductive metal pipes is communicated with the aeration pipe (132);
the aeration pipe (132) rotationally agitates the sewage with the aeration gas as a power and stirs the aeration bubbles into the sewage.
5. The constructed wetland sewage treatment plant according to claim 1, wherein the discharge electrode (2) further comprises: an electrode fixing device (23), wherein the electrode fixing device (23) is inserted into and penetrates through the artificial wetland layer (11) to the sewage layer (12); the conductive metal pipe (211) is connected to the bottom of the electrode fixing device (23) to be placed in the sewage layer (12).
6. The constructed wetland sewage treatment plant of claim 5, further comprising: a high-voltage pulse power supply (3);
the conductive metal tube (211) is led out to the outside through a lead (4) and is connected with a grounding negative electrode of the high-voltage pulse power supply (3);
the metal lead (221) is connected with the anode of the high-voltage pulse power supply (3).
7. The constructed wetland sewage treatment plant of claim 6,
the electrode fixing device (23) is a circular tube made of PVC;
the metal lead (221) is a metal copper wire;
the conductive metal pipe (211) is made of stainless steel.
8. The constructed wetland sewage treatment plant of claim 6,
the inner diameter of the conductive metal tube (211) is 4 cm;
the length of the conductive metal tube (211) is 5 cm;
the inner diameter of the glass tube (222) is 0.6cm, and the inside of the glass tube contains air;
the diameter of the glass sphere (223) is 1 cm.
9. The constructed wetland sewage treatment plant according to claim 5, wherein the electrode fixing device (23) has a plurality of fixing points, and the metal lead (221) and the glass tube (222) constituting the positive electrode (22) are fixed to the center of the electrode fixing device (23) by an insulating material.
10. The constructed wetland sewage treatment method based on aeration and high-voltage pulse discharge is characterized by comprising the following steps: a sewage layer is arranged at the lower part of the artificial wetland; an aeration device and a discharge electrode are arranged in the sewage layer; a conductive metal tube placed in the sewage is used as a negative electrode of the discharge electrode; the metal lead wrapped by the glass is used as the anode of the discharge electrode and is arranged in the center of the conductive metal tube, wherein the discharge tip of the metal lead is wrapped by the glass sphere; stirring the sewage by using an aeration device to enable the sewage and aeration bubbles to enter the conductive metal pipe area; the high voltage penetrates through the air in the glass tube from the discharge tip of the anode, passes through the glass sphere and discharges to the surrounding conductive metal tube so as to be degraded by sewage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011253965.3A CN112390373B (en) | 2020-11-11 | 2020-11-11 | Artificial wetland sewage treatment device and method based on aeration and high-voltage pulse discharge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011253965.3A CN112390373B (en) | 2020-11-11 | 2020-11-11 | Artificial wetland sewage treatment device and method based on aeration and high-voltage pulse discharge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112390373A true CN112390373A (en) | 2021-02-23 |
| CN112390373B CN112390373B (en) | 2023-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011253965.3A Active CN112390373B (en) | 2020-11-11 | 2020-11-11 | Artificial wetland sewage treatment device and method based on aeration and high-voltage pulse discharge |
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Citations (6)
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| CN1663916A (en) * | 2004-12-16 | 2005-09-07 | 哈尔滨工业大学 | High-pressure pulse discharge catalytic oxidation method for removal of undegradable organic substances in water |
| CN201447384U (en) * | 2009-05-22 | 2010-05-05 | 南京大学 | Water-treatment device by using electrode type media to stop electric discharge |
| CN102329033A (en) * | 2011-09-09 | 2012-01-25 | 四川农业大学 | Independent-aeration high-voltage pulse discharging water treatment reactor and sewage treatment method thereof |
| CN204588824U (en) * | 2015-03-26 | 2015-08-26 | 段立鹏 | A kind of constructed wetland device |
| CN206767867U (en) * | 2017-03-31 | 2017-12-19 | 昆明理工大学 | A kind of persistent organic pollutant wastewater processing system |
| RO133723A2 (en) * | 2018-05-08 | 2019-11-29 | Aurelian Dan Ivan | Device for increasing efficiency of constructed wetlands |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1663916A (en) * | 2004-12-16 | 2005-09-07 | 哈尔滨工业大学 | High-pressure pulse discharge catalytic oxidation method for removal of undegradable organic substances in water |
| CN201447384U (en) * | 2009-05-22 | 2010-05-05 | 南京大学 | Water-treatment device by using electrode type media to stop electric discharge |
| CN102329033A (en) * | 2011-09-09 | 2012-01-25 | 四川农业大学 | Independent-aeration high-voltage pulse discharging water treatment reactor and sewage treatment method thereof |
| CN204588824U (en) * | 2015-03-26 | 2015-08-26 | 段立鹏 | A kind of constructed wetland device |
| CN206767867U (en) * | 2017-03-31 | 2017-12-19 | 昆明理工大学 | A kind of persistent organic pollutant wastewater processing system |
| RO133723A2 (en) * | 2018-05-08 | 2019-11-29 | Aurelian Dan Ivan | Device for increasing efficiency of constructed wetlands |
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| CN112390373B (en) | 2023-05-05 |
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