A floating sandwich-type electro-Fenton kitchen waste wastewater treatment device and method

Abstract

This invention relates to the field of wastewater treatment technology, specifically a floating sandwich-type electro-Fenton wastewater treatment device and method. It includes a water collection tank, a support frame fixedly connected inside the water collection tank, a drain frame snapped onto the top of the support frame, a connecting pipe fixedly connected to the center of the bottom of the water collection tank, and a wastewater treatment tank fixedly connected to the bottom of the connecting pipe. An electro-Fenton water purification sandwich structure is fixedly connected inside the wastewater treatment tank, with positive and negative electrodes fixedly connected to both sides of the electro-Fenton water purification sandwich structure. The advantage of this invention is that by setting pressure switches on both sides of the top of the water collection tank, under normal conditions, the drain frame cooperates with the support frame, and the pressing plate is located in the notch groove, applying pressure to the pressure switches to supply power to the positive and negative electrodes for water purification. When the drain frame is lifted, the pressure switches release the pressure, de-energizing the positive and negative electrodes and ending the water purification process.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to a floating sandwich-type electro-Fenton kitchen waste wastewater treatment device and method. Background Technology

[0002] During the cooking process, a large amount of wastewater containing oil is generated. Directly discharging kitchen waste can easily lead to excessive oil stains in the wastewater, making it difficult to treat. Furthermore, oil stains can easily clog pipes and affect drainage in low-temperature environments. Therefore, a kitchen wastewater treatment device is needed to treat kitchen wastewater and reduce the content of oil and other substances in it.

[0003] A floating sandwich-type electro-Fenton wastewater treatment device and method are disclosed in Chinese patent CN202210702922.1. This floating sandwich-type electro-Fenton wastewater treatment device and method takes into account both H2O2 generation and Fe2+ regeneration performance, and significantly improves ·OH production, thereby accelerating the wastewater treatment efficiency. However, this floating sandwich-type electro-Fenton wastewater treatment device and method is a common wastewater treatment method. When treating kitchen wastewater, kitchen wastewater is continuously added during cooking and sorting. Wastewater treatment requires electrification. If the protective measures are not sufficient, it is easy for users to be electrocuted, which poses a certain safety hazard. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a floating sandwich-type electric Fenton kitchen waste wastewater treatment device and method, which effectively solves the deficiencies of the prior art.

[0005] The objective of this invention is achieved through the following technical solution: a floating sandwich-type electro-Fenton kitchen waste wastewater treatment device and method, comprising a water collection tank, a support frame fixedly connected inside the water collection tank, a leakage frame snapped onto the top of the support frame, a connecting pipe fixedly connected at the center of the bottom of the water collection tank, a wastewater treatment tank fixedly connected at the bottom of the connecting pipe, an electro-Fenton water purification sandwich structure fixedly connected inside the wastewater treatment tank, and positive and negative electrodes fixedly connected to both sides of the electro-Fenton water purification sandwich structure respectively.

[0006] Optionally, both the support frame and the drain frame are composed of strip-shaped support rods, the support rods of the support frame and the drain frame are interlaced, the support frame is basin-shaped, and the cross-sectional shapes of the support frame and the drain frame are compatible.

[0007] The above technical solution involves setting up a support frame and a drain frame inside the water collection tank to form a basin structure. This seals the top of the water collection tank, allowing for food processing operations such as washing vegetables inside. When food wastewater needs to be poured into the treatment device, the drain frame is lifted, allowing the wastewater to enter the water collection tank through the gap between the support frame and the drain frame, and then into the sewage treatment tank for treatment.

[0008] Optionally, the support rods of the drain frame and the support frame are complementary in shape, the staggered position of the support rods of the drain frame and the support frame is stepped, and the inner surface of the drain frame and the support frame is flat when they are snapped together.

[0009] The above technical solution involves setting the gap between the drain frame and the support frame into a stepped, bent state, which allows the gap to be sealed better. When the two are combined, water can be collected in the water tank for food processing.

[0010] Optionally, handles are fixedly connected to both sides of the top of the drain frame, and the handles are made of hard silicone.

[0011] Optionally, the positive and negative terminals are electrically connected to the power supply, and slots are provided on both sides of the top of the water tank. A pressure switch is installed in the slot and is electrically connected to the power supply.

[0012] Optionally, pressing plates are fixedly connected to both sides of the top of the drain frame, and the shape and position of the pressing plates are adapted to the shape and position of the notch.

[0013] The above technical solution involves installing pressure switches on both sides of the top of the water collection tank. Under normal conditions, when the leakage frame cooperates with the support frame, the pressing plate is located in the notch groove, applying pressure to the pressure switch to ensure normal power supply to the positive and negative poles for water purification. When the leakage frame is lifted, the pressure switch releases the pressure, de-energizing the positive and negative poles and ending the water purification process. This allows the wastewater treatment device to automatically cut off power when kitchen wastewater is added to the wastewater treatment tank, avoiding the electric shock safety hazard of being energized while adding kitchen wastewater to the treatment tank.

[0014] Optionally, the electro-Fenton water purification sandwich structure includes an active air diffusion electrode layer, an activated carbon fiber felt layer, and a shape-stabilized electrode layer, and the electro-Fenton water purification sandwich structure is located at the center of the wastewater treatment chamber.

[0015] Optionally, an iron ion monitoring device is fixedly connected to one side of the inner wall of the sewage treatment chamber, and an iron ion replenishment tank is fixedly connected to one side of the top of the sewage treatment chamber. An electromagnetic valve is fixedly connected to the output port of the iron ion replenishment tank, and both the iron ion monitoring device and the electromagnetic valve are electrically connected to the control terminal.

[0016] The above technical solution involves using an iron ion monitoring device to detect the content of ferrous ions in the wastewater treatment chamber. When the content of ferrous ions drops to the rated value, the solenoid valve is opened to replenish the ferrous salt solution in the iron ion replenishment tank into the wastewater treatment chamber, thereby maintaining the internal iron ion content at a normal level and preventing the wastewater treatment efficiency from being affected by the decrease in the content of ferrous ions.

[0017] Optionally, an outlet is provided on one side of the bottom of the sewage treatment chamber, and sealing plates are rotatably connected to both sides of the inner wall of the connecting pipe. A torsion spring is sleeved in the middle of the rotating shaft of the sealing plate, and the torsion of the torsion spring keeps the sealing plate in a horizontal state.

[0018] The above technical solution is adopted: by installing a sealing plate inside the connecting pipe, the sealing plate will seal the connecting pipe under normal conditions, isolating the water collection tank and the sewage treatment tank, and preventing the gas generated during the reaction in the sewage treatment tank from entering the water collection tank. When wastewater enters the connecting pipe, the sealing plate will open under the action of gravity.

[0019] Optionally, when the pressure switch is pressed by the pressure plate in its normal state, the positive and negative terminals are energized for sewage treatment. When the drain frame is lifted, the pressure switch is released, the positive and negative terminals are de-energized, and sewage treatment is stopped. The kitchen wastewater in the water accumulation tank is discharged into the sewage treatment tank. The iron ion monitoring device measures the content of ferrous ions in the sewage treatment tank. When the ferrous ion content is normal, the solenoid valve is closed. When the ferrous ion content is lower than the rated value, the solenoid valve opens, and the ferrous salt solution in the iron ion replenishment tank is replenished into the sewage treatment tank.

[0020] The present invention has the following advantages:

[0021] 1. The floating sandwich-type electro-Fenton kitchen waste wastewater treatment device and method, by setting a support frame and a drain frame inside the water collection tank, the two are combined to form a basin structure, which can seal the top of the water collection tank. Kitchen processing operations such as washing vegetables can be carried out inside the water collection tank. When it is necessary to pour kitchen wastewater into the treatment device, the drain frame is lifted, so that the kitchen wastewater can enter the water collection tank through the gap between the support frame and the drain frame, and then enter the sewage treatment tank for sewage treatment. By setting the gap between the drain frame and the support frame to a stepped bending state, the gap can be better sealed. When the two are combined, water can be collected in the water collection tank for kitchen processing.

[0022] 2. The floating sandwich-type electric Fenton kitchen waste wastewater treatment device and method, by setting pressure switches on both sides of the top of the water collection tank, under normal conditions, the water leakage frame cooperates with the support frame, and the pressing plate is located in the notch groove, applying pressure to the pressure switch, so that the positive and negative poles are normally powered for water purification. When the water leakage frame is lifted, the pressure switch releases the pressure state, thereby de-energizing the positive and negative poles and ending the water purification state. Thus, when kitchen wastewater is added to the wastewater treatment tank, the wastewater treatment device can automatically cut off the power, avoiding the electric shock safety hazard of being in an energized state when adding kitchen wastewater to the treatment tank.

[0023] 3. The floating sandwich-type electro-Fenton kitchen waste wastewater treatment device and method uses an iron ion monitoring device to detect the content of ferrous ions in the wastewater treatment chamber. When the content of ferrous ions drops to the rated value, the solenoid valve opens, and ferrous salt solution from the iron ion replenishment tank is added to the wastewater treatment chamber to maintain the internal iron ion content at a normal level. This avoids the situation where the wastewater treatment efficiency is affected due to the decrease in the content of ferrous ions. By installing a sealing plate in the connecting pipe, the sealing plate closes the connecting pipe under normal conditions, isolating the water collection chamber and the wastewater treatment chamber, and preventing the gas generated during the reaction in the wastewater treatment chamber from entering the water collection chamber. When wastewater enters the connecting pipe, the sealing plate opens under the action of gravity. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention;

[0025] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0026] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A;

[0027] Figure 4 For the present invention Figure 2 Enlarged structural diagram at point B;

[0028] Figure 5 For the present invention Figure 2 Enlarged structural diagram at point C;

[0029] Figure 6 This is a schematic diagram of the structure in the drainage state of the present invention;

[0030] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point D;

[0031] Figure 8 This is a cross-sectional structural diagram of the present invention in the drainage state;

[0032] Figure 9 For the present invention Figure 8 Enlarged structural diagram at point E;

[0033] Figure 10 This is a schematic diagram of the processing method of the present invention.

[0034] In the diagram: 1-Water collection tank, 2-Support frame, 3-Leakage frame, 4-Connecting pipe, 5-Sewage treatment tank, 6-Electro-Fenton water purification sandwich structure, 601-Active air diffusion electrode layer, 602-Activated carbon fiber felt layer, 603-Stable electrode layer, 7-Positive and negative electrodes, 8-Handle, 9-Groove, 10-Pressure switch, 11-Press plate, 13-Iron ion replenishment tank, 14-Solenoid valve, 15-Outlet, 16-Sealing plate, 17-Torsion spring. Detailed Implementation

[0035] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0036] like Figures 1 to 10 As shown, a floating sandwich-type electro-Fenton kitchen waste wastewater treatment device and method includes a water collection tank 1, a support frame 2 fixedly connected inside the water collection tank 1, a water leakage frame 3 snapped onto the top of the support frame 2, a connecting pipe 4 fixedly connected at the center of the bottom of the water collection tank 1, a sewage treatment tank 5 fixedly connected at the bottom of the connecting pipe 4, an electro-Fenton water purification sandwich structure 6 fixedly connected inside the sewage treatment tank 5, and positive and negative electrodes 7 fixedly connected to both sides of the electro-Fenton water purification sandwich structure 6 respectively.

[0037] Example 1: Both the support frame 2 and the drain frame 3 are composed of strip-shaped support rods. The support rods of the support frame 2 and the drain frame 3 are interlaced. The support frame 2 is basin-shaped, and the cross-sectional shapes of the support frame 2 and the drain frame 3 are matched. By setting the support frame 2 and the drain frame 3 inside the water collection tank 1, the two are combined to form a water basin structure, which can seal the top of the water collection tank 1. Vegetable washing and other kitchen processing operations can be carried out inside the water collection tank 1. When it is necessary to pour kitchen wastewater into the treatment device, the drain frame 3 is lifted, so that the kitchen wastewater can enter the water collection tank 1 through the gap between the support frame 2 and the drain frame 3, and then enter the sewage treatment tank 5 for sewage treatment.

[0038] Example 2: The support rods of the drain frame 3 and the support frame 2 are complementary in shape. The staggered position of the support rods of the drain frame 3 and the support frame 2 is stepped. When the drain frame 3 and the support frame 2 are snapped together, the inner surface is flat. By setting the gap between the drain frame 3 and the support frame 2 to a stepped bending state, the gap between the two can be better sealed. When the two are combined, water can be collected in the water collection tank 1 for kitchen processing.

[0039] Example 3: Handles 8 are fixedly connected to both sides of the top of the drainage frame 3. The handles 8 are made of hard silicone.

[0040] Example 4: Positive and negative poles 7 are electrically connected to the power supply. Both sides of the top of the water tank 1 are provided with notches 9. Pressure switches 10 are installed in the notches 9 and are electrically connected to the power supply.

[0041] Example 5: Press plates 11 are fixedly connected to both sides of the top of the drain frame 3. The shape and position of the press plates 11 are adapted to the shape and position of the notch 9. By setting pressure switches 10 on both sides of the top of the water collection tank 1, under normal conditions, the drain frame 3 cooperates with the support frame 2, and the press plates 11 are located in the notch 9, applying pressure to the pressure switches 10, so that the positive and negative poles 7 are powered normally for water purification. When the drain frame 3 is lifted, the pressure switches 10 release the pressure state, thereby de-energizing the positive and negative poles 7 and ending the water purification state. Thus, when kitchen wastewater is added to the sewage treatment tank 5, the wastewater treatment device can automatically cut off the power, avoiding the electric shock safety hazard that exists when the device is in an energized state when adding kitchen wastewater to the treatment tank.

[0042] Example 6: The electro-Fenton water purification sandwich structure 6 includes an active air diffusion electrode layer 601, an activated carbon fiber felt layer 602, and a shape-stabilized electrode layer 603. The electro-Fenton water purification sandwich structure 6 is located at the center of the wastewater treatment chamber 5.

[0043] Example 7: An iron ion monitoring device is fixedly connected to one side of the inner wall of the sewage treatment chamber 5, and an iron ion replenishment tank 13 is fixedly connected to one side of the top of the sewage treatment chamber 5. A solenoid valve 14 is fixedly connected to the output port of the iron ion replenishment tank 13. Both the iron ion monitoring device and the solenoid valve 14 are electrically connected to the control terminal. The iron ion monitoring device detects the content of ferrous ions in the sewage treatment chamber 5. When the content of ferrous ions drops to the rated value, the solenoid valve 14 is opened to replenish the ferrous salt solution in the iron ion replenishment tank 13 into the sewage treatment chamber 5, so that the internal iron ion content can be maintained at a normal level, avoiding the situation where the wastewater treatment efficiency is affected due to the decrease in the content of ferrous ions.

[0044] Example 8: A water outlet 15 is provided on one side of the bottom of the sewage treatment chamber 5. Both sides of the inner wall of the connecting pipe 4 are rotatably connected to a sealing plate 16. A torsion spring 17 is sleeved in the middle of the rotating shaft of the sealing plate 16. The torsion of the torsion spring 17 keeps the sealing plate 16 in a horizontal state. By setting the sealing plate 16 in the connecting pipe 4, the sealing plate 16 closes the connecting pipe 4 under normal conditions, isolating the water collection chamber 1 and the sewage treatment chamber 5, and preventing the gas generated in the sewage treatment chamber 5 during the reaction process from entering the water collection chamber 1. When wastewater enters the connecting pipe 4, the sealing plate 16 opens under the action of gravity.

[0045] Example 9: When the pressure switch 10 is pressed by the pressure plate 11 in its normal state, the positive and negative terminals 7 are energized to carry out sewage treatment. When the drain frame 3 is lifted, the pressure switch 10 is released from the pressing state, and the positive and negative terminals 7 are de-energized to stop sewage treatment. The kitchen wastewater in the water collection tank 1 is discharged into the sewage treatment tank 5. The iron ion monitoring device measures the content of ferrous ions in the sewage treatment tank 5. When the ferrous ion content is normal, the solenoid valve 14 is in the closed state. When the ferrous ion content is lower than the rated value, the solenoid valve 14 is opened, and the ferrous salt solution in the iron ion replenishment tank 13 is replenished into the sewage treatment tank 5.

[0046] The working principle of this invention is as follows:

[0047] S1. Under normal conditions, when the water leakage frame 3 and the support frame 2 are in conjunction, the pressing plate 11 is located in the notch groove 9 and applies pressure to the pressure switch 10, so that the positive and negative poles 7 are powered normally for water purification.

[0048] S2. When the drain frame 3 is lifted, the pressure switch 10 releases the pressure state, which de-energizes the positive and negative poles 7 and releases the water purification state. This allows the wastewater treatment device to automatically de-energize when kitchen wastewater is added to the wastewater treatment chamber 5, avoiding the electric shock safety hazard that may exist when the device is energized while adding kitchen wastewater to the treatment chamber.

[0049] Compared with the prior art, the present invention has the following advantages:

[0050] 1. The floating sandwich-type electric Fenton kitchen waste wastewater treatment device and method, by setting a support frame 2 and a drain frame 3 inside the water collection tank 1, so that the two are combined to form a basin structure, can seal the top of the water collection tank 1, and can carry out kitchen processing operations such as washing vegetables inside the water collection tank 1. When it is necessary to pour kitchen wastewater into the treatment device, the drain frame 3 is lifted, so that the kitchen wastewater can enter the water collection tank 1 through the gap between the support frame 2 and the drain frame 3, and then enter the sewage treatment tank 5 for sewage treatment. By setting the gap between the drain frame 3 and the support frame 2 to a stepped bending state, the gap between the two can be better sealed. When the two are combined, water can be collected in the water collection tank 1 for kitchen processing.

[0051] 2. The floating sandwich-type electric Fenton kitchen waste wastewater treatment device and method, by setting pressure switches 10 on both sides of the top of the water collection tank 1, under normal conditions, the water leakage frame 3 cooperates with the support frame 2, and the pressing plate 11 is located in the notch groove 9, applying pressure to the pressure switch 10, so that the positive and negative poles 7 are normally powered for water purification treatment. When the water leakage frame 3 is lifted, the pressure switch 10 is released from the pressure state, and the positive and negative poles 7 are de-energized and the water purification state is terminated. Thus, when kitchen wastewater is added to the wastewater treatment tank 5, the wastewater treatment device can automatically cut off the power, avoiding the electric shock safety hazard that exists when the device is in an energized state when adding kitchen wastewater to the treatment tank.

[0052] 3. The floating sandwich-type electro-Fenton kitchen waste wastewater treatment device and method uses an iron ion monitoring device to detect the content of ferrous ions in the wastewater treatment chamber 5. When the content of ferrous ions drops to the rated value, the solenoid valve 14 is opened to replenish the ferrous salt solution in the iron ion replenishment tank 13 into the wastewater treatment chamber 5, so that the internal iron ion content can be maintained at a normal level, avoiding the situation where the wastewater treatment efficiency is affected due to the decrease in the content of ferrous ions. By installing a sealing plate 16 in the connecting pipe 4, under normal conditions, the sealing plate 16 closes the connecting pipe 4, isolating the water collection chamber 1 and the wastewater treatment chamber 5, preventing the gas generated during the reaction in the wastewater treatment chamber 5 from entering the water collection chamber 1. When wastewater enters the connecting pipe 4, the sealing plate 16 opens under the action of gravity.

Claims

1. A floating sandwich-type electro-Fenton kitchen waste wastewater treatment device, characterized in that: Includes a water collection tank (1), a support frame (2) is fixedly connected inside the water collection tank (1), a water leakage frame (3) is snapped onto the top of the support frame (2), a connecting pipe (4) is fixedly connected at the center of the bottom of the water collection tank (1), a sewage treatment tank (5) is fixedly connected at the bottom of the connecting pipe (4), an electric Fenton water purification sandwich structure (6) is fixedly connected inside the sewage treatment tank (5), and positive and negative electrodes (7) are fixedly connected to both sides of the electric Fenton water purification sandwich structure (6). The positive and negative poles (7) are electrically connected to the power supply. The top of the water collection tank (1) is provided with notches (9) on both sides. A pressure switch (10) is provided in the notch (9). The pressure switch (10) is electrically connected to the power supply. A pressing plate (11) is provided above the pressure switch (10). The top of the water leakage frame (3) is fixedly connected with pressing plates (11). The shape and position of the pressing plate (11) are adapted to the shape and position of the notch (9). Both the support frame (2) and the drain frame (3) are composed of strip-shaped support rods. The support rods of the support frame (2) and the drain frame (3) are intersected. The support frame (2) is shaped like a water basin. The cross-sectional shapes of the support frame (2) and the drain frame (3) are compatible. The support rods of the drain frame (3) and the support frame (2) are complementary in shape. The staggered position of the support rods of the drain frame (3) and the support frame (2) is stepped. When the drain frame (3) and the support frame (2) are snapped together, the inner surface is flat.

2. The floating sandwich-type electro-Fenton kitchen waste wastewater treatment device according to claim 1, characterized in that: The top two sides of the drain frame (3) are fixedly connected with handles (8), and the handles (8) are made of hard silicone.

3. The floating sandwich-type electro-Fenton kitchen waste wastewater treatment device according to claim 2, characterized in that: The electro-Fenton water purification sandwich structure (6) includes an active air diffusion electrode layer (601), an active carbon fiber felt layer (602), and a shape-stabilized electrode layer (603), and the electro-Fenton water purification sandwich structure (6) is located at the center of the wastewater treatment chamber (5).

4. The floating sandwich-type electro-Fenton kitchen waste wastewater treatment device according to claim 3, characterized in that: An iron ion monitoring device is fixedly connected to one side of the inner wall of the sewage treatment chamber (5), and an iron ion replenishment tank (13) is fixedly connected to one side of the top of the sewage treatment chamber (5). An electromagnetic valve (14) is fixedly connected to the output port of the iron ion replenishment tank (13). The iron ion monitoring device and the electromagnetic valve (14) are both electrically connected to the control terminal.

5. The floating sandwich-type electro-Fenton kitchen waste wastewater treatment device according to claim 4, characterized in that: The sewage treatment chamber (5) has an outlet (15) on one side of its bottom. The inner walls of the connecting pipe (4) are connected to rotatable sealing plates (16) on both sides. A torsion spring (17) is sleeved in the middle of the rotating shaft of the sealing plate (16). The torsion of the torsion spring (17) keeps the sealing plate (16) in a horizontal state.

6. The working method of the floating sandwich-type electro-Fenton kitchen waste wastewater treatment device according to claim 5, characterized in that: When the pressure switch (10) is pressed by the pressure plate (11) in its normal state, the positive and negative poles (7) are energized to treat wastewater. When the drain frame (3) is lifted, the pressure switch (10) is released from the pressing state, and the positive and negative poles (7) are de-energized to stop wastewater treatment. The kitchen wastewater in the water collection tank (1) is discharged into the sewage treatment tank (5). The iron ion monitoring device measures the content of ferrous ions in the sewage treatment tank (5). When the content of ferrous ions is normal, the solenoid valve (14) is closed. When the content of ferrous ions is lower than the rated value, the solenoid valve (14) is opened, and the ferrous salt solution in the iron ion replenishment tank (13) is replenished into the sewage treatment tank (5).

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