Photoelectric and electric sewage treatment device

Abstract

The utility model discloses a photoelectric synergistic electric sewage treatment device which comprises a sewage treatment tank, the sewage treatment tank is mounted in an outer fixing seat, percolate is filled in the sewage treatment tank, a mounting plate covers the upper part of the sewage treatment tank, and the end part of the mounting plate is fixedly connected with a fixing frame; the end, away from the mounting plate, of the fixing frame is fixedly connected with the outer fixing base. An ultraviolet lamp is arranged at the bottom of the mounting plate, and supporting pieces are screwed to the two sides of the bottom of the mounting plate. According to the photoelectric synergistic electric sewage treatment device, the edge cathode, the composite anode and the direct-current power supply are combined together to form a sewage electrolysis assembly, meanwhile, ultraviolet light with the characteristic wavelength of 300-400 nanometers is used for irradiating wastewater percolate, meanwhile, titanium dioxide is arranged on the composite anode, the photocell effect of the titanium dioxide is used for synergistically acting on organic matter, and the sewage treatment efficiency is improved. The whole device is simple in structure, low in manufacturing cost, small in occupied area and low in operation cost.

Description

Technical Field

[0001] The utility model relates to the field of sewage treatment, in particular to a photoelectric coordinated electricity sewage treatment device. Background Art

[0002] Garbage leachate is a major problem in urban environmental governance. Garbage leachate from garbage transfer stations, incineration plants or landfills is generated by various compounds and decaying materials, containing extremely high concentrations of BOD, COD, nitrogen compounds, phosphorus compounds, organic halides and sulfides, inorganic salts, etc. It not only smells bad, but many of them are carcinogens. Garbage leachate is a high-concentration organic wastewater with complex components and large changes in water quality and quantity. It has the following main characteristics: high pollutant concentration; high content of organic pollutants and complex components; serious imbalance in the ratio of microbial nutrients in the leachate; large changes in water quality; and high metal content.

[0003] Regarding the treatment device of garbage leachate, after searching, the prior art discloses (application number: CN201510677185.4) a garbage leachate treatment device; the article proposes "also including a garbage leachate concentrate tank (1) and a concentrate drying device (10), the concentrate discharge port (101) of the concentrate tank (1) is connected to the concentrate inlet of the concentrate drying device (10) through a concentrate delivery pipeline (1015), the on-off device controls the on-off of the concentrate tank and the concentrate delivery pipeline (1015) of the concentrate drying device (10), and the concentrate tank (1) is connected to the garbage leachate. The concentrated liquid outlet (401) and the leachate inlet (402) of the liquid concentration device are respectively connected, so that the garbage leachate (102) collected by the concentrated liquid tank (1) enters the garbage leachate concentration device for concentration, and the generated concentrated liquid returns to the concentrated liquid tank (1). The concentrated liquid reaching the set concentration enters the concentrated liquid drying device (10) through the concentrated liquid discharge port (101), and the concentrated liquid drying device dries the received concentrated liquid and discharges the residue obtained by drying. "The above-mentioned garbage leachate treatment device has a complex structure, complex operation, inconvenient use, and high manufacturing cost. Utility Model Content

[0004] The purpose of the utility model is to provide a photoelectric synergistic electric sewage treatment device to solve the defects mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, a photovoltaic-electric sewage treatment device is provided, comprising a sewage treatment tank, the sewage treatment tank being installed in an external fixing seat, the interior of the sewage treatment tank being filled with leachate, and the upper part of the sewage treatment tank being covered with a mounting plate, while the end of the mounting plate is fixedly connected to a fixing frame, and the end of the fixing frame away from the mounting plate is fixedly connected to the external fixing seat;

[0006] An ultraviolet lamp is arranged at the bottom of the mounting plate, and support sheets are screwed on both sides of the bottom of the mounting plate, and the end of the support sheet away from the mounting plate is fixedly connected to the edge cathode. At the same time, a composite anode is arranged in the middle of the edge cathode. The composite anode is made of copper ion-doped titanium dioxide coated on the surface of the titanium mesh and sintered at 500 degrees Celsius for 1 hour.

[0007] Preferably, the edge cathode is a cylindrical structure made of 316L stainless steel, and the transverse sections of the edge cathode and the composite anode are concentric circle structures.

[0008] Preferably, the top of the composite anode is fixedly connected to the limiting tube, and the end of the limiting tube away from the composite anode is welded to the stud, and the stud passes through a through hole opened in the center of the mounting plate and is screwed and fixed to a nut.

[0009] Preferably, the mounting plate is a "U"-shaped structure made of plastic material, and the bent parts at both ends of the mounting plate are respectively attached to the inner walls of the two sets of fixing frames and fixed by bolts.

[0010] Preferably, a DC power supply is installed outside the external fixing seat, and the DC power supply is electrically connected to the composite anode and the edge cathode respectively, and the composite anode and the edge cathode are ground in the leachate.

[0011] Preferably, connecting plates are installed on both sides of the bottom of the mounting plate, and two groups of ultraviolet lamps are screwed to the bottom of the connecting plates respectively, and four groups of ultraviolet lamps cover the surface layer of the leachate at the same time, and the wavelength of the ultraviolet lamps is 300-400nm.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the edge cathode, the composite anode and the DC power supply are combined together to form a sewage electrolysis component, and the wastewater leachate is irradiated with ultraviolet light with a characteristic wavelength of 300-400 nanometers. At the same time, titanium dioxide is arranged on the composite anode, and the photocell effect of titanium dioxide is utilized to synergistically act on organic matter to treat leachate, high-salt chemical wastewater and pesticide wastewater. The entire device has a simple structure, low cost, small footprint, and low operating cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the front view of the structure of the utility model;

[0014] Figure 2 The utility model structure Figure 1 A top-down cross-sectional view of

[0015] Figure 3 The utility model structure Figure 1 A top view of

[0016] Figure 4 This is a schematic diagram of the second structural embodiment of the utility model.

[0017] Numbers in the figure: 1. External fixing seat; 2. Sewage treatment tank; 3. Fixing frame; 4. Mounting plate; 5. Connecting plate; 6. Ultraviolet lamp; 7. Stud; 8. Nut; 9. Limiting cylinder; 10. Composite anode; 11. Edge cathode; 12. DC power supply; 13. Leachate; 14. Support sheet. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Example 1: Please refer to Figure 1-3 The utility model provides a photovoltaic synergistic electric sewage treatment device, comprising a sewage treatment tank 2, the sewage treatment tank 2 is installed in an external fixing seat 1, the interior of the sewage treatment tank 2 is filled with leachate 13, and the upper part of the sewage treatment tank 2 is covered with a mounting plate 4, and the end of the mounting plate 4 is fixedly connected to the fixing frame 3, and the end of the fixing frame 3 away from the mounting plate 4 is fixedly connected to the external fixing seat 1;

[0020] An ultraviolet lamp 6 is arranged at the bottom of the mounting plate 4, and support sheets 14 are screwed on both sides of the bottom of the mounting plate 4, and the end of the support sheet 14 away from the mounting plate 4 is fixedly connected to the edge cathode 11, and at the same time, a composite anode 10 is arranged in the middle of the edge cathode 11. The composite anode 10 is made of copper ion-doped titanium dioxide coated on the surface of the titanium mesh and sintered at 500 degrees Celsius for 1 hour.

[0021] Working principle: When in use, the leachate 13 is injected into the sewage treatment tank 2 through a pipeline. At this time, the edge cathode 11 and the composite anode 10 are both submerged in the leachate 13. The edge cathode 11, the composite anode 10 and the DC power supply 12 are combined to form a sewage electrolysis component. At the same time, the wastewater leachate 13 is irradiated with ultraviolet light with a characteristic wavelength of 300-400 nanometers. At the same time, titanium dioxide is arranged on the composite anode 10, and the photocell effect of titanium dioxide is used to synergistically act on organic matter to treat the leachate 13, high-salt chemical wastewater and pesticide wastewater. The whole device has a simple structure, low cost, small footprint, and low operating cost.

[0022] The sewage treated in the sewage treatment tank 2 can be pumped out to the next treatment process through an external pipe and a pump body.

[0023] As a preferred embodiment, the edge cathode 11 is a cylindrical structure made of 316L stainless steel, and the transverse sections of the edge cathode 11 and the composite anode 10 are concentric circle structures.

[0024] like Figure 1-3 As shown: an edge cathode 11, a composite anode 10 and a DC power supply 12, while irradiating the leachate 13 with ultraviolet light of a characteristic wavelength of 300-400 nanometers, using the photocell effect of titanium dioxide to synergistically act on organic matter to treat garbage leachate, high-salt chemical wastewater, and pesticide wastewater.

[0025] As a preferred embodiment, the top of the composite anode 10 is fixedly connected to the limiting tube 9, and the end of the limiting tube 9 away from the composite anode 10 is welded to the stud 7, and the stud 7 passes through the through hole opened in the center of the mounting plate 4 and is screwed and fixed to the nut 8.

[0026] like Figure 1-3 As shown, the composite anode 10 and the edge cathode 11 are detachable structures inside the sewage treatment tank 2, which is convenient for disassembly, cleaning and maintenance of the composite anode 10 and the edge cathode 11.

[0027] As a preferred embodiment, the mounting plate 4 is a "U"-shaped structure made of plastic material, and the bent parts at both ends of the mounting plate 4 are respectively attached to the inner walls of the two sets of fixing frames 3 and fixed by bolts.

[0028] like Figure 1-3 As shown: the mounting plate 4 is a "U"-shaped structure. By removing the mounting plate 4 from the fixing frame 3, the mounting plate 4, the ultraviolet lamp 6, the composite anode 10, and the edge cathode 11 can be completely removed from the sewage treatment tank 2 for easy assembly.

[0029] As a preferred embodiment, a DC power supply 12 is installed outside the external fixing base 1, and the DC power supply 12 is electrically connected to the composite anode 10 and the edge cathode 11 respectively, and the composite anode 10 and the edge cathode 11 are ground in the leachate 13 at the same time.

[0030] As a preferred embodiment, connecting plates 5 are installed on both sides of the bottom of the mounting plate 4, and two groups of ultraviolet lamps 6 are screwed to the bottom of the connecting plates 5 respectively. At the same time, four groups of ultraviolet lamps 6 cover the surface of the leachate 13, and the wavelength of the ultraviolet lamps 6 is 300-400nm.

[0031] An anode is inserted into the landfill leachate 13, and the organic pollutants therein will adhere to its surface. Due to the existence of electric current, water molecules separate hydroxide ions, and the pollutants react with the hydroxide ions to remove the pollutants. The substances in the landfill leachate 13 are electrolyzed to form oxidants such as chlorate, thereby oxidizing the pollutants.

[0032] Embodiment 2: Figure 4 As shown: the structure of this embodiment is basically the same as that of the first embodiment, with the difference that: the ultraviolet lamp 6 in the first embodiment covers the surface of the liquid surface of the leachate 13, while the ultraviolet lamp 6 in this embodiment is submerged in the interior of the leachate 13 through the installation bracket for ultraviolet disinfection. The light emitted by the ultraviolet lamp 6 can fully act on the inside of the water body to improve the sterilization effect on the sewage. At the same time, it can also avoid the light generated by the ultraviolet lamp 6 from irradiating on the water surface, causing the light to be reflected on the water surface, thereby greatly reducing the sterilization effect.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic synergistic electric sewage treatment device, comprising a sewage treatment tank (2), the sewage treatment tank (2) being installed in an external fixing seat (1), characterized in that: The interior of the sewage treatment tank (2) is filled with leachate (13), and the upper part of the sewage treatment tank (2) is covered with a mounting plate (4), while the end of the mounting plate (4) is fixedly connected to the fixing frame (3), and the end of the fixing frame (3) away from the mounting plate (4) is fixedly connected to the external fixing seat (1); An ultraviolet lamp (6) is arranged at the bottom of the mounting plate (4), and support sheets (14) are screwed to both sides of the bottom of the mounting plate (4), and one end of the support sheet (14) away from the mounting plate (4) is fixedly connected to the edge cathode (11), and a composite anode (10) is arranged in the middle of the edge cathode (11).

2. The photovoltaic synergistic electric sewage treatment device according to claim 1 is characterized by: The edge cathode (11) is a cylindrical structure made of 316L stainless steel, and the transverse sections of the edge cathode (11) and the composite anode (10) are concentric circle structures.

3. The photovoltaic-electric wastewater treatment device according to claim 1 is characterized in that: The top of the composite anode (10) is fixedly connected to the limiting tube (9), and the end of the limiting tube (9) away from the composite anode (10) is welded to the stud (7), while the stud (7) passes through a through hole provided in the center of the mounting plate (4) and is screwed and fixed to a nut (8).

4. The photovoltaic-electric wastewater treatment device according to claim 1 is characterized in that: The mounting plate (4) is a "U"-shaped structure made of plastic material, and the bent portions at both ends of the mounting plate (4) are respectively attached to the inner walls of the two sets of fixing frames (3) and fixed by bolts.

5. The photovoltaic-electric wastewater treatment device according to claim 1 is characterized in that: A direct current power source (12) is installed outside the external fixing seat (1), and the direct current power source (12) is electrically connected to the composite anode (10) and the edge cathode (11), respectively, and the composite anode (10) and the edge cathode (11) are ground in the leachate (13).

6. The photovoltaic-electric wastewater treatment device according to claim 1 is characterized by: Connecting plates (5) are installed on both sides of the bottom of the installation plate (4), and two groups of ultraviolet lamps (6) are screwed to the bottom of the connecting plates (5), and four groups of ultraviolet lamps (6) cover the surface layer of the liquid surface of the leachate (13), and the wavelength of the ultraviolet lamps (6) is 300-400nm.

Images