Experimental device for electrochemical enhanced treatment of oily wastewater
By designing an electrochemical experimental device with components such as DC power supply, conductive card slot, ultrasonic vibrator, etc., the problems of lack of experimental devices and complex current density calculation are solved, real-time monitoring of oil-containing wastewater and a variety of enhanced treatment methods are realized, and treatment efficiency is improved.
Patent Information
- Application Number
- CN202422739644.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-11-11
AI Technical Summary
The experimental devices used in the prior art for electrochemical treatment of oil-containing wastewater are lacking, and the self-designed devices have complex calculations of current density, and the measurement of influencing factors is not real-time, so the treatment method cannot be effectively strengthened.
An electrochemical experimental device including DC power supply, conductive card slot, insulated card slot, ultrasonic vibrator and other components was designed, which can realize electrochemical, ultrasonic enhancement and ozone enhancement treatment, has real-time monitoring and simple structure, and is easy to calculate the charge density of the plate.
Real-time monitoring and various strengthening methods for electrochemical treatment of oil-containing wastewater are realized, simplifying the calculation of plate charge density, and improving the treatment efficiency and the integrity of the device.
Smart Images
Figure CN223225859U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of water treatment, in particular to an experimental device for electrochemically strengthening the treatment of oily wastewater. Background Art
[0002] The oily wastewater generated in oilfield production has complex sources, high COD, and is difficult to degrade. Currently, physical and chemical combined treatment is mostly used, but the residual trace oil in the water is difficult to treat. The low efficiency of biological deep treatment will produce secondary polluted sludge, and incineration or thermal cracking methods have high energy consumption. Because the electrochemical method can effectively oxidize organic matter in water bodies, and the process is simple to operate, low-cost, and reduces secondary pollution, its use for deep treatment of low-concentration oily wastewater has been a research direction proposed by oilfield companies and scientific research institutions in recent years. However, the corresponding laboratory equipment used in this research direction is currently rare. Not only is it not commercially available, the calculation method of the plate current density of the self-designed equipment is complicated, the measurement of influencing factors and indicators is not comprehensive and real-time, and the equipment for the enhanced method is not considered. In order to promote the development of research on electrochemical deep treatment of oily wastewater, it is particularly important to design an experimental device for electrochemical enhanced treatment of oily wastewater. Summary of the Invention
[0003] The purpose of this utility model is to provide an experimental device for electrochemically enhanced treatment of oily wastewater, mainly to develop an electrochemical treatment experimental device for oily wastewater with good integrity, simple structure and multiple uses, so as to solve the problem of lack of electrochemical water treatment research equipment.
[0004] The technical solutions adopted in this utility model are as follows:
[0005] An experimental device for electrochemically enhanced treatment of oily wastewater includes: a DC power supply, positive and negative conductors, a test box, conductive slots, insulating slots, an ultrasonic jack array, an ultrasonic transducer, external power conductors, a conductive suspension beam, a plate clamp, plates, an external power supply, a front panel, a temperature and pH display, side panels, a valved sampling tube, an oil meter, a gas flow control valve, a booster pump, an ozone generator, a perforated bottom panel, a sealing plug, an aeration connector, and a drain connector. The DC power supply connects to the positive and negative conductors and the conductive slots. The ends of the conductive suspension beam are located on the conductive slots and the insulating slots, respectively. The external power supply connects to the external power conductors, which are connected to the ultrasonic transducer via the ultrasonic jack array. The plate clamp is used to secure the plates, and the ultrasonic transducer and the conductive suspension beam are mounted on the plate clamp. The front panel and side panels of the test box are the front and sides of the test box. The temperature and pH display are mounted on the front panel, and the valved sampling tube is mounted on the side panels, which is connected to the oil meter. The bottom of the test chamber has a perforated base plate that can be connected to a sealing plug, an aeration connector, or a drain connector. The ozone generator is connected to the booster pump, and the gas flow control valve is installed on the ozone generator pipeline. Ozone is supplied through the aeration connector on the perforated base plate.
[0006] The plates in the plate clamp are replaceable, there are scales on the side of the plate clamp and the conductive card slot, the two ends of the conductive suspension beam are movable between the conductive card slot and the insulating card slot, the ultrasonic vibrator is in close contact with the plate clamp, and the ultrasonic vibrator is connected to the external power supply through the ultrasonic jack row.
[0007] There is a temperature and pH display screen on the front panel of the test box, and there are vertically equidistant and parallel valved sampling tubes on the side panels of the test box, and the valved sampling tubes are connected to the oil measuring instrument.
[0008] The bottom of the test box is a perforated bottom plate with multiple inner spiral through holes, which can be connected to sealing plugs, aeration joints or drainage joints.
[0009] Beneficial effects of the utility model:
[0010] 1. The utility model has good integrity and can realize experimental research on electrochemical treatment of oily wastewater, with real-time display of temperature, pH and oil content data.
[0011] 2. This utility model can be used for multiple purposes. It can conduct ultrasound-enhanced electrochemical experiments through the ultrasonic vibrator, conduct ozone-enhanced electrochemical experiments through the aeration joint on the bottom plate with holes, or conduct experiments that are enhanced by ultrasound and ozone simultaneously.
[0012] 3. The utility model has a simple structure. The plate slides in the slot by moving the conductive suspension beam, and the plate charge density σ can be calculated.
[0013] 4. The ultrasonic vibrator of the utility model is in close contact with the electrode plate, which can test the effect of ultrasound on electrochemistry enhancement, and can also slow down the deposition of organic matter on the electrode plate and clean the electrode plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the structure of an experimental device for electrochemical enhanced treatment of oily wastewater in the utility model.
[0015] Figure 2 It is a rear side view of the present utility model.
[0016] Figure 3 It is a front view of the present utility model.
[0017] Figure 4 It is a schematic diagram of the bottom of the experimental box in the present utility model.
[0018] Figure 5 This is a schematic diagram of the installation of the electrode structure of the present invention.
[0019] Figure 6 This is a schematic diagram of the connection between the electrode plate, insulating slot and conductive slot in the utility model.
[0020] In the figure, 1. DC power supply; 2. Positive and negative wires; 3. Experimental box; 4. Conductive card slot; 5. Insulating card slot; 6. Ultrasonic jack row; 7. Ultrasonic vibrator; 8. External power supply wire; 9. Conductive suspension beam; 10. Plate clamp; 11. Plate; 12. External power supply; 13. Front panel; 14. Temperature and pH display screen; 15. Side panel; 16. Sampling tube with valve; 17. Oil tester; 18. Gas flow control valve; 19. Booster pump; 20. Ozone generator; 21. Bottom plate with holes; 22. Sealing plug; 23. Aeration joint; 24. Drain joint. DETAILED DESCRIPTION
[0021] The present invention is described in detail below with reference to the accompanying drawings and embodiments:
[0022] like Figures 1-6 As shown, the utility model consists of a DC power supply 1, positive and negative wires 2, an experimental box 3, a conductive card slot 4, an insulating card slot 5, an ultrasonic jack row 6, an ultrasonic vibrator 7, an external power supply wire 8, a conductive suspension beam 9, a plate clamp 10, a plate 11, an external power supply 12, a front panel 13, a temperature and pH display screen 14, a side panel 15, a sampling tube with a valve 16, an oil meter 17, a gas flow regulating valve 18, a booster pump 19, an ozone generator 20, a bottom plate with a hole 21, a sealing plug 22, an aeration joint 23 and a drainage joint 24.
[0023] Example 1: In a single electrochemical experiment, the electrode plate clamp 10 in the experimental chamber 3 is first connected to the electrode plate 11. The conductive suspension beam 9 is placed on the insulating slot 5 and the conductive slot 4. The conductive suspension beam 9 is then slid to position the electrode plate 11. Next, oily wastewater is injected from the top of the experimental chamber 3. A DC power supply 1 is connected to the conductive suspension beam 9 via the positive and negative leads 2. The DC power supply 1 is then turned on. Electrochemical reactions occur on the electrode plate 11, including direct and indirect oxidation reactions. During this process, highly reactive intermediates are generated on the surface of the electrode plate 11, which can further oxidize or reduce the pollutants. During the experiment, monitoring and sampling are performed using the following methods. The front panel 13 of the experimental chamber 3 features a temperature and pH display 14, which reads the temperature and pH values. The side panel 15 contains vertically equidistant parallel sampling tubes 16 with valves. The ends of the tubes are connected to an oil meter 17, which reads the oil content. The distance between the electrode plates is read using the scale on the conductive slot 4. Simultaneously, the lengths a and b of the two sides of the plate immersed in the actual electrochemical reaction are read from the scales on the plate clamp 10 and the experimental chamber 3. The plate charge density σ is calculated using the formula σ = Q / S, where the effective plate area S = a × b and Q is the charge Q = I × t. If sampling is required during the experiment, this can be done using a valved sampling tube 16. The perforated bottom plate 21 has a drain connection 24. A sealing plug 22 blocks the remaining holes in the perforated bottom plate 21. The oily wastewater treated during the electrochemical experiment is discharged through the drain valve via the drain connection 24.
[0024] Example 2: In the ultrasonically enhanced electrochemical experiment process, the electrode clamp 10 is first connected to the electrode plate 11 within the experimental chamber 3. The conductive suspension beam 9 is placed on the insulating slot 5 and the conductive slot 4. The conductive suspension beam 9 is then slid to position the electrode 11. Next, oily wastewater is injected from the top of the experimental chamber 3. A DC power supply 1 is connected to the conductive suspension beam 9 via the positive and negative wires 2. When the DC power supply 1 is turned on, electrochemical reactions occur on the electrode plate 11, including direct and indirect oxidation reactions. During this process, highly reactive intermediates are generated on the surface of the electrode plate 11, which can further oxidize or reduce the pollutants. Turn on the external power supply 12 and start the ultrasonic vibrator 7. The plate 11 connected to the ultrasonic vibrator 7 starts the ultrasonic effect in the water. When the ultrasonic wave acts on the liquid, a large number of microbubbles can be generated. When the bubbles burst instantly, the pressure released can promote the flow of wastewater around the plate 11, accelerate the movement of the water body, and strengthen the electrochemical effect of the plate 11. At the same time, the oscillation of the ultrasonic vibrator 7 slows down the deposition of organic matter on the plate 11. The ultrasonic effect can be turned on or off at any time as needed. During the experiment, monitoring and sampling are carried out in the following ways. There is a temperature and pH display screen 14 on the front panel 13 of the experimental box 3, which can read the temperature and pH value; the side panel 15 has a vertically equidistant parallel sampling tube 16 with a valve, and the oil meter 17 connected to the end of the tube can read the oil content; the plate spacing is read through the scale on the conductive card slot 4. Simultaneously, the lengths a and b of the two sides of the plate immersed in the actual electrochemical reaction are read from the scales on the plate clamp 10 and the experimental chamber 3. The plate charge density σ is calculated using the formula σ = Q / S, where the effective plate area S = a × b and Q is the charge Q = I × t. If sampling is required during the experiment, this can be done using a valved sampling tube 16. The perforated bottom plate 21 has a drain connection 24, through which the oily wastewater treated during the ultrasonically enhanced electrochemical experiment is discharged from the drain valve.
[0025] Example 3: In the ozone-enhanced electrochemical experiment process, a series of preparatory steps are first performed inside the experimental chamber 3. The electrode clamp 10 is connected to the electrode 11, the conductive suspension beam 9 is placed on the insulating slot 5 and the conductive slot 4, and the conductive suspension beam 9 is slid to position the electrode 11. Next, oily wastewater is injected from the top of the experimental chamber 3. At this point, the DC power supply 1 is connected to the conductive suspension beam 9 via the positive and negative wires 2. When the DC power supply 1 is turned on, electrochemical reactions occur on the electrode 11, including direct and indirect oxidation reactions. During this process, highly active intermediates are generated on the surface of the electrode 11, which can further oxidize or reduce the pollutants. An ozone generator 20 introduces ozone into the experimental chamber 3 via a booster pump 19. Ozone dissolved in water can oxidize and decompose pollutants, thereby accelerating the decomposition process. The amount of ozone introduced can be adjusted using the gas flow control valve 18, and the ozone effect can be turned on or off as needed. During the experiment, monitoring and sampling were carried out in the following manner. The front panel 13 of the experimental box 3 is provided with a temperature and pH display screen 14, which can read out the temperature and pH value. There are vertically equidistant and parallel valved sampling tubes 16 on the side panel 15, and the oil meter 17 connected to the end of the tube can read out the oil content. The scale on the conductive card slot 4 reads the distance between the plates. At the same time, the lengths a and b of the two sides of the plate immersed in the actual electrochemical reaction are read out by the scale on the plate clamp 10 and the scale on the experimental box 3. The plate charge density σ is calculated by the formula σ=Q / S, where the effective active plate area S=a×b, and Q is the charge Q=I×t. If sampling is required for the experiment, it can be done through the valved sampling tube 16. Finally, the perforated bottom plate 21 has a drainage joint 24, and the oily wastewater after treatment in the ozone-enhanced electrochemical experiment is discharged from the drainage valve through the drainage joint 24.
[0026] Example 4: In the ultrasonic ozone enhanced electrochemical experiment operation process, first, carry out key preparation work inside the experimental box 3. Accurately dock the electrode clamp 10 with the electrode 11 to ensure a firm connection. Next, place the conductive suspension beam 9 on the insulating card slot 5 and the conductive card slot 4, and slide the conductive suspension beam 9 to move the electrode 11 to a predetermined position. Next, the oily wastewater is slowly injected through the upper part of the experimental box 3. At the same time, the DC power supply 1 establishes a connection with the conductive suspension beam 9 through the positive and negative wires 2, and turns on the DC power supply 1. At this time, electrochemical reactions will occur on the electrode 11, including direct oxidation reactions and indirect oxidation reactions. In this process, highly active intermediates are generated on the surface of the electrode 11, which can further undergo oxidation or reduction reactions with the pollutants. Turn on the external power supply 12 and start the ultrasonic vibrator 7. The plate 11 connected to the ultrasonic vibrator 7 activates ultrasonic action in the water. When ultrasonic waves act on the liquid, they generate a large number of microbubbles. When the bubbles burst, the pressure released can promote the flow of wastewater around the plate 11, accelerate the movement of the water, and strengthen the electrochemical action of the plate 11. At the same time, the oscillation of the ultrasonic vibrator 7 slows the deposition of organic matter on the plate 11. The ultrasonic action can be turned on or off at any time as needed. In addition, the ozone generator 20 delivers ozone to the experimental box 3 via the booster pump 19. The amount of ozone introduced can be adjusted by the gas flow control valve 18. The ozone dissolved in the water can oxidize and decompose pollutants, accelerating the decomposition process of pollutants. The synergistic effect of ultrasound and ozone greatly enhances the electrochemical process, providing a powerful driving force for efficient pollutant removal. The ultrasound and ozone effects can be turned on or off at any time as needed. Monitoring and sampling can be carried out during the experiment. The front panel 13 of the experimental chamber 3 features a temperature and pH display 14, which accurately reads temperature and pH values, providing important parameter references for the experimental process. The side panels 15 feature vertically equidistant, parallel-connected valved sampling tubes 16, each connected to an oil meter 17 for accurate oil content readings. The distance between the electrodes is measured using the scale on the conductive card slot 4. The lengths a and b of the two sides of the plate immersed in the actual electrochemical reaction are simultaneously measured using the scales on the plate clamp 10 and the body of the experimental chamber 3. The plate charge density σ is calculated using the formula σ=Q / S, where the effective plate area S=a×b and Q represents the charge Q=I×t. If sampling is required during the experiment, this can be conveniently performed using the valved sampling tube 16. Finally, the drain connector 24 on the perforated bottom plate 21 plays a crucial role. The oily wastewater treated during the ultrasonic-ozone-enhanced electrochemical experiment can be drained through this connector, ensuring the efficiency and continuity of the experimental process.
Claims
1. An experimental device for electrochemically enhanced treatment of oily wastewater, comprising: A DC power supply (1), positive and negative wires (2), an experimental box (3), a conductive card slot (4), an insulating card slot (5), an ultrasonic jack row (6), an ultrasonic vibrator (7), an external power supply wire (8), a conductive suspension beam (9), a plate clamp (10), a plate (11), an external power supply (12), a front plate (13), a temperature and pH display screen (14), a side plate (15), a sampling tube with a valve (16), an oil meter (17), a gas flow regulating valve (18), a booster pump (19), an ozone generator (20), a bottom plate with a hole (21), a sealing plug (22), an aeration joint (23), and a drainage joint (24); characterized in that: the DC power supply (1) is connected to the positive and negative wires (2) and the conductive card slot (4); the two ends of the conductive suspension beam (9) are placed on the conductive card slot (4) and the insulating card slot (5); the The external power supply (12) is connected to the ultrasonic jack row (6), and the external power supply wire (8) is connected to the ultrasonic vibrator (7); the plate clamp (10) is fixed on the plate (11), and the plate clamp (10) is installed with the ultrasonic vibrator (7) and the conductive suspension beam (9); the experimental box (3) is equipped with a temperature and pH display screen (14); the front plate (13) and the side plate (15) are the front and side of the experimental box (3), and the valved sampling tube (16) is installed on the side plate (15), and the valved sampling tube (16) is connected to the oil meter (17); the ozone generator (20) is connected to the booster pump (19), and the gas flow regulating valve (18) is installed on the pipeline of the ozone generator (20); the bottom of the experimental box (3) is a bottom plate with holes (21), which can be connected to a sealing plug (22), an aeration joint (23) or a drainage joint (24).
2. The experimental device for electrochemically enhanced treatment of oily wastewater according to claim 1, characterized in that: The pole plate (11) in the pole plate clamp (10) is replaceable, and there is a scale on the side of the pole plate clamp (10). The two ends of the conductive suspension beam (9) are movable between the conductive card slot (4) and the insulating card slot (5). The ultrasonic vibrator (7) is in close contact with the pole plate clamp (10), and the ultrasonic vibrator (7) is connected to the external power supply (12) through the ultrasonic jack row (6).
3. The experimental device for electrochemically enhanced treatment of oily wastewater according to claim 1, characterized in that: The front panel (13) of the experimental box (3) is provided with a temperature and pH display screen (14), and the side panel (15) of the experimental box (3) is provided with vertically equidistant parallel valved sampling tubes (16), and the valved sampling tubes (16) are connected to the oil measuring instrument (17).
4. The experimental device for electrochemically enhanced treatment of oily wastewater according to claim 1, characterized in that: The bottom of the experimental box (3) is a bottom plate with holes (21), and the bottom plate with holes (21) has multiple inner spiral through holes, which can be connected to the sealing plug (22), the aeration joint (23) or the drainage joint (24).