Piezoelectric photocatalytic oxidation treatment equipment for organic wastewater

Abstract

The utility model relates to piezoelectric electro-catalytic oxidation treatment equipment for organic wastewater, which comprises treatment equipment, a front door and a breaking handle, and through mutual matching of a separation frame and an interception plate, after the organic wastewater is introduced, due to different densities of water and oil, grease floats on a water body, and the heavy pressure of the water body causes downward pressure on a one-way plate; the one-way hinge column assists the one-way plate to swing and fold at an angle, the falling opening is in an open state, and after the water body finishes falling, due to the fact that grease is light and has no downward heavy pressure on the one-way plate, the one-way plate resets under the assistance of the one-way hinge column, the grease is intercepted at the upper end of the plate block, and the grease in the wastewater is intercepted in advance conveniently. And the subsequent catalytic treatment effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of organic wastewater treatment, in particular to a piezoelectric photocatalytic oxidation organic wastewater treatment device. Background Technique

[0002] Organic wastewater is a water body with chemical pollution, mainly including benzene, phenol, petroleum and its products, etc. Due to the complex composition of pollutants, piezoelectric photocatalysis is often used for treatment. The piezoelectric photocatalytic effect refers to the process of suppressing the carrier shielding effect of photo-generated carriers under the action of the built-in electric field by compounding ferroelectric / piezoelectric materials with photocatalysts and driving them by ultrasonic waves, so as to achieve long-term enhanced photocatalytic effect, that is, the process of using tiny mechanical energy to achieve catalysis. It can effectively utilize mechanical energy in the environment such as noise and vibration to degrade organic pollutants.

[0003] When optimizing the existing piezoelectric photocatalytic oxidation organic wastewater treatment equipment, most of them are reflected in improving the working efficiency of wastewater treatment. For example, the Chinese invention patent with the application number CN202111369203.4 discloses "A Piezoelectric-Photocatalytic Pollutant Degradation Device Based on Hydropower Generation". In this device, it includes a funnel-shaped wall surface. The inner surface of the funnel-shaped wall surface is provided with a spiral reaction tank. The two ends of the spiral reaction tank are connected to the water inlet at the upper part and the water outlet at the bottom of the funnel-shaped wall surface. The funnel-shaped reaction tank is lined with a piezoelectric film. A hydraulic generator is provided at the water outlet, and a xenon lamp is provided above the funnel-shaped wall surface and connected to the hydraulic generator. The invention effectively utilizes the water flow to drive the piezoelectric film to generate a piezoelectric effect, converts the mechanical energy of the water flow acting on the surface of the piezoelectric structure unit into chemical energy, and is used to degrade pollutants. At the same time, using the principle of hydropower generation, the mechanical energy is converted into electrical energy and collected for use. It not only has a simple structure, is easy to implement, energy-saving and environmentally friendly, but also saves costs compared with traditional photocatalytic devices, improves the working efficiency, and has a long working life due to its own energy supplement, and can obtain huge economic benefits.

[0004] Although the above-mentioned piezoelectric photocatalytic oxidation organic wastewater treatment equipment has certain advantages in improving the working efficiency of wastewater treatment, it still has certain drawbacks: there are many pollutants in organic wastewater, including grease. Due to the different densities of water and oil, they are easy to stratify, resulting in that during piezoelectric photocatalytic oxidation treatment, the grease is not easily catalyzed synchronously with the water body, and the grease is easy to wrap other organic pollutants, resulting in a reduction in catalytic efficiency. Content of the Utility Model

[0005] (1) Technical Problem to be Solved

[0006] To solve the above technical problems, the utility model provides a piezoelectric photocatalytic oxidation organic wastewater treatment device.

[0007] (2) Technical Solution

[0008] Based on this, the utility model provides the following technical solutions: a piezoelectric photocatalytic oxidation device for treating organic wastewater, comprising a treatment device, a front door and a handle, wherein the handle is fixedly mounted on the front end surface of the front door, and the front door is hinged at the front end of the treatment device;

[0009] The processing equipment includes a first chamber, a water-oil separation structure, a second chamber, a third chamber, a fourth chamber, an inlet, a photocatalytic plate, a piezoelectric catalytic tube, an ultrasonic instrument, a filter plate, a reaction box and an outlet. The water-oil separation structure is located between the first chamber and the second chamber, the third chamber is located beside the second chamber, the third chamber is separated from the second chamber by the filter plate, the third chamber is located beside the fourth chamber, the inlet and the reaction box are an integrated structure and are arranged through the upper right end thereof, the photocatalytic plate is arranged inside the second chamber, the piezoelectric catalytic tube is arranged inside the third chamber, the ultrasonic instrument is installed at the top position of the inner side of the third chamber, and the outlet and the reaction box are an integrated structure and are arranged through the lower left side thereof.

[0010] Preferably, the water-oil separation structure comprises a separation frame and an interception plate, and the left end of the interception plate is connected to the separation frame and movably fits on the right side of the separation frame.

[0011] Preferably, the separation frame includes a vertical channel, a folding plate, a movable plate, a water outlet, a spring and a solid plate, the upper end of the folding plate is hinged to the solid plate, the lower end of the folding plate is hinged to the movable plate, the movable plate is slidably matched with the vertical channel, the upper end of the spring is connected to the bottom end surface of the movable plate, the lower end of the spring is connected to the solid plate, and the water outlet and the vertical channel are an integrated structure and are located on the inner side thereof.

[0012] Preferably, the intercepting plate comprises a plate, a drop mouth, a one-way hinge column, a one-way plate and a side block, the drop mouth and the plate are an integrated structure and are arranged through, the one-way hinge column is hingedly installed in the plate, one side end of the one-way plate is fixedly connected to the one-way hinge column and movably cooperates, and the side block is embedded and connected to the left and right ends of the plate.

[0013] Preferably, the right edge end of the front door is hinged to the right side of the reaction box, and the filter plate is provided at two locations on the inner side of the reaction box, respectively located between the second chamber and the third chamber and between the third chamber and the fourth chamber. The photocatalytic plate is in the shape of a honeycomb structure plate, and becomes a metal semiconductor material after the metal reacts with the photocatalyst. The piezoelectric catalytic tube is in the shape of a tube lamp and is provided at four locations. The piezoelectric catalytic tube and the ultrasonic instrument carry out a piezoelectric catalytic reaction in the third chamber, and the filter plate is made of activated carbon fiber material.

[0014] Preferably, the right side of the intercepting plate is in sliding fit with the inner right wall surface of the reaction tank, and the upper and lower ends of the separation rack are fixedly connected to the inner upper and lower end surfaces of the reaction tank.

[0015] Preferably, the right end of the moving plate is fixedly connected and movably fitted with the left end of the intercepting plate. The moving plate can move down along the vertical channel under the action of water pressure and gravity, and can also move up along the vertical channel under the elastic force of the spring. The folding plate can be pressed and folded or extended to control the area of the vertical channel blocking the water flow.

[0016] Preferably, the side block is connected to the moving plate. There are two one-way hinge columns and a one-way plate on the inner side of the falling port, and the one-way hinge column can only turn 90 degrees, assisting the one-way plate to only fold in one direction, facilitating the control of the opening and closing of the falling port, facilitating the flow of water, and intercepting grease.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the present utility model provides a piezoelectric photocatalytic oxidation device for treating organic wastewater, having the following beneficial effects:

[0019] 1. For the piezoelectric photocatalytic oxidation device for treating organic wastewater, the organic wastewater enters the second chamber, so that the organic wastewater undergoes a photocatalytic effect in the second chamber. The wastewater continues to flow into the third chamber, and through ultrasonic vibration, a piezoelectric catalytic reaction occurs in the third chamber, so that the organic pollutants are decomposed and treated thoroughly, and enter the fourth chamber, and are discharged outwards through the outlet.

[0020] 2. For the piezoelectric photocatalytic oxidation device for treating organic wastewater, through the mutual cooperation of the separation rack and the intercepting plate, when the organic wastewater is introduced, due to the different densities of water and oil, the oil floats on the water body. The heavy pressure of the water body causes a downward pressure on the one-way plate, and the one-way hinge column assists the one-way plate to swing and fold at an angle, so that the falling port is in an open state. When the water body falls, since the oil is lighter and does not exert a downward heavy pressure on the one-way plate, the one-way plate resets with the assistance of the one-way hinge column. Therefore, the oil is intercepted at the upper end of the plate, facilitating the prior interception of the oil in the wastewater and making the subsequent catalytic treatment effect better. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the whole of the present utility model;

[0022] Figure 2 is a schematic structural diagram of the treatment device of the present utility model;

[0023] Figure 3 is a schematic structural diagram of the water-oil separation structure of the present utility model;

[0024] Figure 4 is a schematic structural diagram of the separation rack of the present utility model;

[0025] Figure 5 It is a structural schematic diagram of the intercepting plate of the utility model.

[0026] In the figure: processing equipment-1, front door-2, handle-3, first chamber-11, water-oil separation structure-12, second chamber-13, third chamber-14, fourth chamber-15, inlet-16, photocatalytic plate-17, piezoelectric catalytic tube-18, ultrasonic instrument-19, filter plate-110, reaction box-111, outlet-112, separation frame-121, interception plate-122, vertical channel-a1, folding plate-a2, movable plate-a3, water outlet-a4, spring-a5, solid plate-a6, plate-q1, drop-q2, one-way hinge column-q3, one-way plate-q4, side block-q5. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figure 1-2, A piezoelectric photocatalytic oxidation device for treating organic wastewater, comprising a treatment device 1, a front door 2 and a handle 3. The handle 3 is fixedly installed on the front end face of the front door 2, and the front door 2 is hinged to the front end of the treatment device 1. The treatment device 1 includes a first chamber 11, a water-oil separation structure 12, a second chamber 13, a third chamber 14, a fourth chamber 15, an inlet 16, a photocatalytic plate 17, a piezoelectric catalytic tube 18, an ultrasonic instrument 19, a filter plate 110, a reaction tank 111 and an outlet 112. The water-oil separation structure 12 is located between the first chamber 11 and the second chamber 13. The third chamber 14 is located beside the second chamber 13. The third chamber 14 is separated from the second chamber 13 by the filter plate 110. The third chamber 14 is located beside the fourth chamber 15. The inlet 16 and the reaction tank 111 are of an integrated structure and are penetrated and arranged at the upper right end thereof. The photocatalytic plate 17 is arranged inside the second chamber 13. The piezoelectric catalytic tube 18 is arranged inside the third chamber 14. The ultrasonic instrument 19 is installed at the top position inside the third chamber 14. The outlet 112 and the reaction tank 111 are of an integrated structure and are penetrated and arranged at the lower left position thereof. The right edge end of the front door 2 is hinged to the right side of the reaction tank 111. There are two filter plates 110 on the inner side of the reaction tank 111, respectively located between the second chamber 13 and the third chamber 14 and between the third chamber 14 and the fourth chamber 15. The photocatalytic plate 17 is in the shape of a honeycomb structure plate and becomes a metal semiconductor material after reacting with a photocatalyst through metal. The piezoelectric catalytic tube 18 is in the shape of a tube lamp and there are four of them. The piezoelectric catalytic tube 18 and the ultrasonic instrument 19 carry out piezoelectric catalytic reactions in the third chamber 14. The filter plate 110 is made of activated carbon fiber material.

[0029] Please refer to Figure 3-4 , A piezoelectric photocatalytic oxidation device for treating organic wastewater, the water-oil separation structure 12 includes a separation frame 121 and an interception plate 122. The left end of the interception plate 122 is connected to the separation frame 121 and is movably matched on the right side of the separation frame 121. The separation frame 121 includes a vertical channel a1, a folding plate a2, a moving plate a3, a water passage a4, a spring a5 and a solid plate a6. The upper end of the folding plate a2 is hinged to the solid plate a6, and the lower end of the folding plate a2 is hinged to the moving plate a3. The moving plate a3 is slidably matched with the vertical channel a1. The upper end of the spring a5 is connected to the bottom end face of the moving plate a3, and the lower end of the spring a5 is connected to the solid plate a6. The water passage a4 and the vertical channel a1 are of an integrated structure and are located on the inner side thereof. The right side of the interception plate 122 is slidably matched with the inner right wall surface of the reaction tank 111. The upper and lower ends of the separation frame 121 are fixedly connected to the inner upper and lower end faces of the reaction tank 111. The right end of the moving plate a3 is fixedly connected to the left end of the interception plate 122 and is movably matched. The moving plate a3 can move down along the vertical channel a1 under the action of water pressure and gravity, and can also move up along the vertical channel a1 under the elastic force of the spring a5. The folding plate a2 can be pressed and folded or extended to control the area of the vertical channel a1 blocking the water flow.

[0030] Please refer to Figure 5 , a device for treating organic wastewater by piezoelectric photocatalytic oxidation. The intercepting plate 122 includes a plate q1, a falling port q2, a one-way hinge column q3, a one-way plate q4, and a side block q5. The falling port q2 is an integral structure with the plate q1 and is provided in a through manner. The one-way hinge column q3 is hinged and installed in the plate q1. One end of the one-way plate q4 is fixedly connected to the one-way hinge column q3 and is movably matched. The side blocks q5 are fixedly connected to the left and right ends of the plate q1. The side blocks q5 are connected to the moving plate a3. Two one-way hinge columns q3 and one-way plates q4 are provided on the inner side of the falling port q2, and the one-way hinge column q3 can only turn 90 degrees, and the auxiliary one-way plate q4 can only fold in a single row, which is convenient for controlling the opening and closing of the falling port q2, facilitating the flow of water and intercepting grease.

[0031] In summary, the organic wastewater to be treated by piezoelectric photocatalytic oxidation is introduced into the interior of the treatment device 1 from the inlet 16, first enters the first chamber 11, generates water pressure on the water-oil separation structure 12. The water-oil separation structure 12 changes with the magnitude of the pressure received, and first intercepts the grease in the organic wastewater. The remaining substances then enter the second chamber 13 with the water body. The photocatalytic plate 17 generates electron-hole pairs under excitation. The electron-hole pairs participate in the process of oxidation-reduction reaction to decompose organic pollutants, enabling the organic wastewater to undergo photocatalytic effect in the second chamber 13. Due to the structure of the filter plate 110 itself, the wastewater can continue to flow into the third chamber 14. Through ultrasonic vibration, water is decomposed into hydrogen and oxygen. The force acting on the piezoelectric catalytic tube 18 causes the deformation of zinc oxide, generating a strain-induced electric potential on the surface of the piezoelectric catalytic tube 18, enabling the charge to transfer to the water molecules for decomposition reaction. The organic wastewater undergoes piezoelectric catalytic reaction in the third chamber 14, thoroughly decomposing and treating the organic pollutants, and then enters the fourth chamber 15 and is discharged outwards through the outlet 112. Through the mutual cooperation of the separation frame 121 and the intercepting plate 122, when the organic wastewater is introduced, the water gravity generates a downward pressure on the plate q1. The qa3 and the side blocks q5 cooperate with the plate q1, causing the moving plate a3 to drive the side blocks q5 to move down along the vertical channel a1 and extend the folding plate a2 downwards. The blocked area of the upper half of the separation frame 121 increases, the distance of the water through-port a4 shortens, and the area of water body flow decreases, causing the water body to slowly flow into the second chamber 13. During the falling process of the wastewater, due to the different densities of water and oil, the grease floats on the water body. The heavy pressure of the water body causes a downward pressure on the one-way plate q4. The one-way hinge column q3 assists the one-way plate q4 to swing and fold at an angle, and the falling port q2 is thus in an open state. When the water body finishes falling, since the grease is lighter and does not exert a downward heavy pressure on the one-way plate q4, the one-way plate q4 resets with the assistance of the one-way hinge column q3. Therefore, the grease is intercepted at the upper end of the plate q1, facilitating the prior interception of the grease in the wastewater and making the subsequent catalytic treatment effect better.

[0032] The control mode of the present utility model is controlled by manually starting and closing the switch. The wiring diagram of the power element and the power supply are common knowledge in the art. Moreover, the present utility model is mainly used to protect mechanical devices. Therefore, the control mode and wiring arrangement of the present utility model will not be further explained in detail.

[0033] The control mode of the present utility model is automatically controlled by a controller. The control circuit of the controller can be realized by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Moreover, the present utility model is mainly used to protect mechanical devices. Therefore, the control mode and circuit connection of the present utility model will not be further explained in detail.

[0034] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A piezoelectric photocatalytic oxidation device for treating organic wastewater, characterized in that: It comprises a processing device (1), a front door (2) and a handle (3), wherein the handle (3) is fixedly mounted on the front end surface of the front door (2), and the front door (2) is hinged on the front end of the processing device (1); The treatment device (1) comprises a first chamber (11), a water-oil separation structure (12), a second chamber (13), a third chamber (14), a fourth chamber (15), an inlet (16), a photocatalytic plate (17), a piezoelectric catalytic tube (18), an ultrasonic instrument (19), a filter plate (110), a reaction box (111) and an outlet (112), wherein the water-oil separation structure (12) is located between the first chamber (11) and the second chamber (13), the third chamber (14) is located beside the second chamber (13), and the third chamber (14) and the second chamber (112) are connected to each other. 3) are separated by a filter plate (110), the third chamber (14) is located on the side of the fourth chamber (15), the inlet (16) and the reaction box (111) are an integrated structure and are arranged through the upper right end thereof, the photocatalytic plate (17) is arranged inside the second chamber (13), the piezoelectric catalytic tube (18) is arranged inside the third chamber (14), the ultrasonic instrument (19) is installed at the top position of the inner side of the third chamber (14), and the outlet (112) and the reaction box (111) are an integrated structure and are arranged through the lower left side thereof.

2. The piezoelectric photocatalytic oxidation device for treating organic wastewater according to claim 1, characterized in that: The water-oil separation structure (12) comprises a separation frame (121) and an interception plate (122); the left end of the interception plate (122) is connected to the separation frame (121) and is movably fitted to the right side of the separation frame (121).

3. The piezoelectric photocatalytic oxidation device for treating organic wastewater according to claim 2, characterized in that: The separation frame (121) includes a vertical channel (a1), a folding plate (a2), a movable plate (a3), a water outlet (a4), a spring (a5) and a solid plate (a6); the upper end of the folding plate (a2) is hinged to the solid plate (a6), the lower end of the folding plate (a2) is hinged to the movable plate (a3), the movable plate (a3) ​​and the vertical channel (a1) are slidably matched, the upper end of the spring (a5) is connected to the bottom end surface of the movable plate (a3), the lower end of the spring (a5) is connected to the solid plate (a6), and the water outlet (a4) and the vertical channel (a1) are an integrated structure and are located on the inner side thereof.

4. The piezoelectric photocatalytic oxidation device for treating organic wastewater according to claim 2, characterized in that: The intercepting plate (122) comprises a plate (q1), a drop opening (q2), a one-way hinge column (q3), a one-way plate (q4) and a side block (q5); the drop opening (q2) and the plate (q1) are an integrated structure and are arranged through; the one-way hinge column (q3) is hingedly installed in the plate (q1); one side end of the one-way plate (q4) is fixedly connected to the one-way hinge column (q3) and movably cooperates; and the side block (q5) is embedded and connected to the left and right ends of the plate (q1).

5. The piezoelectric photocatalytic oxidation device for treating organic wastewater according to claim 1, characterized in that: The right edge of the front door (2) is hinged to the right side of the reaction box (111), and the filter plate (110) is provided at two locations on the inner side of the reaction box (111), respectively located between the second chamber (13) and the third chamber (14) and between the third chamber (14) and the fourth chamber (15).

6. The piezoelectric photocatalytic oxidation device for treating organic wastewater according to claim 2, characterized in that: The right side of the intercepting plate (122) is slidably matched with the inner right wall surface of the reaction box (111), and the upper and lower ends of the separation frame (121) are embedded and connected with the inner upper and lower end surfaces of the reaction box (111).

7. The piezoelectric photocatalytic oxidation device for treating organic wastewater according to claim 3, characterized in that: The right end of the movable plate (a3) ​​is fixedly connected to the left end of the intercepting plate (122) and is movably matched.

8. The piezoelectric photocatalytic oxidation device for treating organic wastewater according to claim 4, characterized in that: The side block (q5) is connected to the movable plate (a3).

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