Highly emulsified oily sewage treatment equipment

Abstract

The utility model provides highly emulsified oily sewage treatment equipment. The highly emulsified oily sewage treatment equipment comprises a rotational flow filtering system, a coalescence degreaser, a precision filter and a desalting system, the rotational flow filtering system comprises a rotational flow filter, a mixer, a micro-nano bubble generator, a stabilizer and a dissolved air pump; the upper part of the barrel of the cyclone filter is a cyclone oil removal area, and the lower part is a filtering area; an exhaust port is further formed in the upper part of the cylinder body; a plurality of filter elements are also arranged in the filter area and are used for filtering solid impurities; and a water outlet is further formed in the side wall of the lower end of the barrel. According to the utility model, a rotational flow filtering system is combined with a micro-nano bubble technology, and the separation and recovery efficiency of sump oil is obviously enhanced by utilizing a rotational flow air flotation effect; the dissolved gas water outlet and the dissolved gas pump circulating system effectively remove oxygen in water, and through advanced treatment units such as electrodialysis, electroadsorption or reverse osmosis, dissolved organic matters, salts and the like in water are deeply removed, so that a high-standard purification effect is achieved, and efficient cyclic utilization of water resources is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a highly emulsified oily sewage treatment device. Background Art

[0002] Current oily wastewater treatment technology faces many challenges, especially when dealing with highly emulsified oil-water mixtures. Traditional treatment methods such as gravity sedimentation and chemical coagulation are often inefficient and difficult to effectively remove fine dispersed oil droplets, resulting in substandard effluent quality, high energy consumption and complex operations during the treatment process. In addition, existing technologies often ignore the efficiency and versatility of system integration when dealing with emulsified oil, such as failing to fully utilize flotation technology to improve oil-water separation efficiency, or lacking effective pretreatment steps before filtration and membrane separation, resulting in high maintenance costs.

[0003] Deficiencies of existing technology:

[0004] 1. Insufficient efficiency and effect: Traditional treatment processes have low separation efficiency for highly emulsified oil droplets and cannot meet strict emission standards, especially the removal capacity for tiny oil droplets is limited.

[0005] 2. Low system integration: Most system components are independent of each other and lack an integrated design, resulting in cumbersome processing procedures, complex operations, and high energy consumption.

[0006] 3. Insufficient pretreatment: There is a lack of efficient pretreatment methods to optimize subsequent treatment steps, such as failure to fully utilize micro-nano bubbles to enhance the flotation effect and reduce the pollutant load before membrane separation.

[0007] 4. Membrane maintenance issues: Desalination systems are susceptible to contamination, especially when oily wastewater without adequate pretreatment directly enters the membrane components, shortening the life of the membrane and increasing the cost of frequent cleaning or replacement.

[0008] 5. Poor flexibility and adaptability: Existing technologies are often single-target and cannot flexibly adapt to oily wastewater from different sources and properties. Especially when the treatment volume changes or the water quality fluctuates greatly, the treatment effect is unstable.

[0009] 6. Lack of backwash and regeneration mechanism: Some systems do not consider filter element cleaning and regeneration carefully, such as lack of effective backwash design, which affects the stability and efficiency of long-term operation.

[0010] Therefore, the prior art has deficiencies and needs further improvement. Utility Model Content

[0011] In view of the problems existing in the prior art, the utility model provides a highly emulsified oily sewage treatment device.

[0012] To achieve the above purpose, the specific scheme of the utility model is as follows:

[0013] The utility model provides a highly emulsified oily sewage treatment equipment, comprising:

[0014] Cyclone filtration system, coalescing oil remover, precision filter, desalination system;

[0015] The cyclone filtration system comprises: a cyclone filter, a mixer, a micro-nano bubble generator, a stabilizer, and an air dissolving pump;

[0016] The cyclone filter comprises: a cylinder, an upper head and a lower head;

[0017] The upper head and the lower head are respectively arranged at the upper end and the lower end of the cylinder;

[0018] The upper part of the cylinder is a cyclone oil removal area and the lower part is a filtration area;

[0019] Water inlets are tangentially arranged on both sides of the upper end of the cylinder.

[0020] An oil collecting micro-cavity is also provided on the inner wall of the upper end of the cylinder, and an oil drain pipe is provided in the oil collecting micro-cavity for draining oil dirt;

[0021] The upper cover is also provided with an exhaust port;

[0022] The water inlet is connected to the outlet of the mixer, the inlet of the micro-nano bubble generator is connected to the outlet of the stabilization tank, and the outlet of the micro-nano bubble generator is connected to the mixer;

[0023] The inlet of the stabilization tank is connected to the outlet of the dissolved air pump;

[0024] After the oily wastewater and the water treated by the micro-nano bubble generator are mixed in the mixer, the water flows into the cyclone oil removal area of ​​the cylinder in a tangential manner from the water inlet to produce a cyclone flotation effect, thereby enhancing the separation and recovery efficiency of the waste oil;

[0025] The lower end of the cylinder is located in the filtering area and is also provided with a plurality of filter elements for filtering solid impurities;

[0026] A water outlet is also provided on the side wall of the lower end of the cylinder;

[0027] The oil drain pipe is provided with a first control valve, and the oil collecting microcavity is provided with a first liquid level gauge; the first liquid level gauge is connected to the first control valve and is used to control the oil drain pipe to drain oil;

[0028] The water outlet is provided with a second control valve, and the cylinder is provided with a second liquid level gauge in the cyclone oil removal area; the second liquid level gauge is connected to the second control valve for controlling water discharge;

[0029] The exhaust port is provided with a third control valve, and the upper cover is also provided with a pressure transmitter, and the pressure transmitter is connected to the third control valve for controlling the exhaust of the exhaust port;

[0030] The inlet of the coalescing oil remover is connected to the second control valve, the outlet of the coalescing oil remover is connected to the precision filter, and the precision filter is connected to the desalination system.

[0031] Furthermore, the cyclone oil removal zone of the cylinder is also provided with a dissolved air water outlet, which is connected to the inlet of a dissolved air pump, and the dissolved air pump is used to dissolve gas in the liquid;

[0032] The dissolved air pump dissolves oxygen-free gas and mixes it with the oily wastewater, promoting the transfer of oxygen in the water into the gas, which is discharged through the exhaust port to achieve a deoxygenation effect.

[0033] Furthermore, a dissolved air water inlet is also provided on the side wall of the lower head;

[0034] The dissolved air water inlet is also connected to the outlet of the micro-nano bubble generator.

[0035] Furthermore, a backwash water outlet is provided on the lower side of the lower head for discharging the water after cleaning the filter element.

[0036] Further, the filter element is a hydrophilic sintered filter element;

[0037] The upper side and the lower side of the filter element are both provided with partition plates.

[0038] Furthermore, the water outlet is also the backwash water inlet, and clean water is injected through the backwash water inlet to clean the filter element.

[0039] Furthermore, the particle size of the micro-nano bubbles generated by the micro-nano bubble generator is between 0.1-100 microns, preferably 0.1-30 microns. The micro-nano bubbles adhere to the surface of the filter element and the interface membrane between the filter element and the liquid, clean the filter element, and extend the maintenance cycle.

[0040] Furthermore, the desalination system is an electric adsorber.

[0041] Further, the desalination system is an electrodialyzer;

[0042] The electrodialyzer comprises: an anode, a cathode, and a concentration chamber and a desalination chamber arranged between the anode and the cathode;

[0043] The water treated by the precision filter enters the concentration chamber and the desalination chamber for further treatment.

[0044] Further, the desalination system is a reverse osmosis treatment system;

[0045] The reverse osmosis treatment system includes: a booster pump, a sand filter tank, a carbon filter tank, a softener, a precision filter, a first high-pressure pump, a first-stage reverse osmosis main unit, an intermediate water tank, a second high-pressure pump, and a second-stage reverse osmosis main unit, which are connected in sequence.

[0046] The technical solution of the utility model has the following beneficial effects:

[0047] 1. Efficient oil-water separation and resource recovery: By combining the cyclone filtration system with micro-nano bubble technology, the cyclone flotation effect is used to significantly enhance the separation and recovery efficiency of waste oil, which not only improves the quality of sewage treatment, but also promotes the effective recovery and utilization of oil resources.

[0048] 2. Comprehensive oil removal, oxygen removal and sulfur removal capabilities: The dissolved air water outlet and dissolved air pump circulation system designed in the utility model effectively remove oxygen from the water, avoiding the adverse effects of oxygen on subsequent treatment, and at the same time improving the overall efficiency of the entire system in treating oily wastewater.

[0049] 3. System integration and automatic control: The use of precise liquid level control and pressure regulation system (such as the coordinated use of the first, second and third control valves with liquid level gauges and pressure transmitters) realizes automatic operation, reduces manual intervention, and improves processing efficiency and stability.

[0050] 4. Easy maintenance and extended filter life: The hydrophilic sintered filter element design is equipped with a partition plate, combined with the self-cleaning effect of micro-nano bubbles, which reduces filter element clogging, simplifies the backwash process, and significantly extends the service life of the filter element and the system maintenance cycle.

[0051] 5. High flexibility and adaptability: Provide a variety of membrane separation technology options (electroadsorption, electrodialysis, reverse osmosis), which can be flexibly selected according to different sewage characteristics and treatment requirements, enhancing the system's adaptability and treatment capacity for various oily sewage.

[0052] 6. Deep purification and resource utilization: Ultimately, through advanced treatment units such as electroadsorption, electrodialysis or reverse osmosis, the dissolved organic matter, salt, etc. in the water are deeply removed to achieve a high-standard purification effect. The produced clean water can be reused, realizing the efficient recycling of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 It is a structural schematic diagram of a desalination system using an electric adsorber of the utility model;

[0054] Figure 2 It is a structural schematic diagram of a desalination system using an electrodialyzer of the utility model;

[0055] Figure 3 It is a structural schematic diagram of a desalination system adopting a reverse osmosis treatment system of the utility model.

[0056] In the figure:

[0057] 1. Mixer; 2. Micro-nano bubble generator; 3. Stabilizer; 4. Air dissolving pump;

[0058] 5. Cylinder; 6. Upper head; 7. Lower head;

[0059] 8. Water inlet;

[0060] 9. Oil collecting micro-cavity;

[0061] 10. Oil drain pipe; 11. First control valve; 12. First liquid level gauge;

[0062] 13. Exhaust port; 14. Third control valve; 15. Pressure transmitter;

[0063] 16. Filter element;

[0064] 17. Water outlet / backwash water inlet; 18. Second control valve; 19. Second liquid level gauge;

[0065] 20. Dissolved air water outlet;

[0066] 21. Dissolved air water inlet;

[0067] 22. Backwash water outlet;

[0068] 23. Separator;

[0069] 24. Coalescing oil remover; 25. Precision filter; 26. Booster pump;

[0070] 27. Electroadsorber; 28. Electrodialyzer; 29. ​​Reverse osmosis treatment system. DETAILED DESCRIPTION

[0071] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0072] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0073] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0074] In the description of this embodiment, the terms "upper", "lower", "front", "back", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0075] like Figure 1-3 As shown, the utility model provides a highly emulsified oily wastewater treatment device, comprising:

[0076] Cyclone filtration system, coalescing oil remover 24, precision filter 25, desalination system 26;

[0077] The cyclone filtration system comprises: a cyclone filter, a mixer 1, a micro-nano bubble generator 2, a stabilizer 3, and an air dissolving pump 4;

[0078] The cyclone filter comprises: a cylinder 5, an upper head 6, and a lower head 7;

[0079] The upper head 6 and the lower head 7 are respectively arranged at the upper end and the lower end of the cylinder 5;

[0080] The upper part of the cylinder 5 is a cyclone oil removal area and the lower part is a filtration area;

[0081] Water inlets 8 are tangentially arranged on both sides of the upper end of the cylinder 5.

[0082] An oil collecting micro-cavity 9 is also provided on the inner wall of the upper end of the cylinder 5, and an oil drain pipe 10 is provided in the oil collecting micro-cavity 9 for draining oil dirt;

[0083] The upper head 6 is also provided with an exhaust port 13;

[0084] The water inlet 8 is connected to the outlet of the mixer 1, the inlet of the micro-nano bubble generator 2 is connected to the outlet of the stabilization tank, and the outlet of the micro-nano bubble generator 2 is connected to the mixer 1;

[0085] The inlet of the stabilization tank is connected to the outlet of the dissolved air pump 4;

[0086] After the oily wastewater and the water treated by the micro-nano bubble generator 2 are mixed in the mixer 1, the water flows into the cyclone oil removal area of ​​the cylinder 5 from the water inlet 8 in a tangential manner to produce a cyclone flotation effect, thereby enhancing the separation and recovery efficiency of the waste oil;

[0087] The lower end of the cylinder 5 is located in the filtering area, and is also provided with a plurality of filter elements 16 for filtering solid impurities;

[0088] A water outlet 17 is also provided on the side wall of the lower end of the cylinder 5;

[0089] The oil drain pipe 10 is provided with a first control valve 11, and the oil collecting microcavity 9 is provided with a first liquid level gauge 12; the first liquid level gauge 12 is connected to the first control valve 11 and is used to control the oil drain pipe 10 to drain oil;

[0090] The water outlet 17 is provided with a second control valve 18, and the cylinder 5 is provided with a second liquid level gauge 19 in the cyclone oil removal area; the second liquid level gauge 19 is connected to the second control valve 18 for controlling drainage;

[0091] The exhaust port 13 is provided with a third control valve 14, and the upper end cap 6 is also provided with a pressure transmitter 15, and the pressure transmitter 15 is connected to the third control valve 14 and is used to control the exhaust of the exhaust port 13;

[0092] The inlet of the coalescing deoiler 24 is connected to the second control valve 18 , the outlet of the coalescing deoiler 24 is connected to the precision filter 25 , and the precision filter 25 is connected to the desalination system 26 .

[0093] The cyclone oil removal zone of the cylinder 5 is also provided with a dissolved air water outlet 20, which is connected to the inlet of the dissolved air pump 4, and the dissolved air pump 4 is used to dissolve gas in the liquid;

[0094] The air dissolving pump 4 dissolves oxygen-free gas and mixes it with the oily wastewater, promoting the transfer of oxygen in the water into the gas, which is discharged through the exhaust port 13 to achieve a deoxygenation effect.

[0095] The side wall of the lower head 7 is also provided with a dissolved air water inlet 21;

[0096] The dissolved air water inlet 21 is also connected to the outlet of the micro-nano bubble generator 2 .

[0097] A backwash water outlet 22 is also provided at the lower side of the lower sealing head 7 for discharging the water after cleaning the filter element 16 .

[0098] The filter element 16 is a hydrophilic sintered filter element 16;

[0099] Separation plates 23 are provided on the upper side and the lower side of the filter element 16 .

[0100] The water outlet 17 is also the backwash water inlet 17 , and clean water is injected through the backwash water inlet 8 to clean the filter element 16 .

[0101] The particle size of the micro-nano bubbles generated by the micro-nano bubble generator 2 is between 0.1-100 microns, preferably 0.1-30 microns; the micro-nano bubbles adhere to the surface of the filter element 16 and the interface membrane between the filter element 16 and the liquid, clean the filter element 16, and extend the maintenance cycle.

[0102] The desalination system 26 is an electric adsorber 27 .

[0103] The desalination system 26 may also be an electrodialyzer 28;

[0104] The electrodialyzer comprises: an anode, a cathode, and a concentration chamber and a desalination chamber arranged between the anode and the cathode;

[0105] The water treated by the precision filter 25 enters the concentration chamber and the desalination chamber for further treatment.

[0106] The desalination system 26 may also be a reverse osmosis treatment system 29;

[0107] The reverse osmosis treatment system includes: a booster pump 26, a sand filter tank, a carbon filter tank, a softener, a precision filter 25, a first high-pressure pump, a first-stage reverse osmosis main unit, an intermediate water tank, a second high-pressure pump, and a second-stage reverse osmosis main unit, which are connected in sequence.

[0108] The principle of this utility model is as follows:

[0109] Pretreatment and micro-nano bubble generation: First, the oily wastewater is mixed with micro-nano bubbles (particle size between 0.1-100 microns, preferably 0.1-30 microns) generated by the micro-nano bubble generator 2. After being treated by the stabilizer 3, these micro-nano bubbles are fully mixed with the wastewater in the mixer 1, providing enhanced conditions for subsequent oil-water separation.

[0110] Cyclone oil removal: The mixed water enters the upper part of the cyclone filter, the cyclone oil removal area, in a tangential manner. Under the centrifugal force generated by high-speed rotation and the flotation effect of micro-nano bubbles, the oil droplets are effectively separated and gathered in the oil collection microcavity 9, and then automatically discharged through the oil discharge pipe 10 and the first control valve 11. This process significantly improves the oil separation efficiency.

[0111] Gas deoxygenation and circulation: The dissolved air water outlet 20 is connected to the dissolved air pump 4 to form a circulation, which promotes the transfer of oxygen in the water to the gas by dissolving oxygen-free gas, and then discharges it through the exhaust port 13, thereby achieving deoxygenation of the water body and optimizing subsequent treatment conditions.

[0112] Desulfurization: First, hydrogen sulfide has a high solubility in oil, so deoiling is equivalent to removing a lot of hydrogen sulfide; secondly, according to Henry's law, the partial pressure of the solute gas in the gas phase is proportional to the concentration of the gas in the liquid phase. The injection of gas will change the gas-liquid equilibrium relationship established by the hydrogen sulfide gas dissolved in water, causing this volatile substance to change from the liquid phase to the gas phase. The mass transfer power is the concentration difference between the liquid and the gas.

[0113] Filtration and solid impurity removal: The water treated in the cyclone degreasing zone naturally flows to the filtration zone at the bottom of the cylinder 5, and further filters out solid impurities through the hydrophilic sintered filter element 16. The design of the partition plate 23 on the filter element 16 helps to optimize fluid distribution and impurity interception. In addition, the backwash mechanism injects clean water through the outlet 17 (also the backwash water inlet 17) to assist the self-cleaning of the filter element 16 and maintain high-efficiency filtration performance.

[0114] Deep purification and resource recovery: The water that has been initially purified by the above steps passes through the coalescing deoiler 24 and the precision filter 25 in turn, and finally enters the desalination system 26. Depending on the configuration, membrane separation can be electrosorption, electrodialysis or reverse osmosis technology to further remove soluble substances, salt, etc. to achieve a high degree of purification. Among them, electrodialysis technology realizes ion separation through the anode, cathode and the intermediate concentration chamber and desalination chamber, while reverse osmosis uses a high-pressure pump to push water molecules through a semipermeable membrane to separate clean water that is almost free of impurities, thereby realizing resource recycling.

[0115] In summary, the utility model efficiently and automatically completes the oil-water separation, deoxygenation, impurity filtration and deep purification of highly emulsified oily wastewater through a series of tightly integrated processing units, realizing the whole process from wastewater treatment to resource utilization.

[0116] The above description is only a preferred embodiment of the present invention, and does not limit the scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the protection scope of the present invention.

Claims

1. A highly emulsified oily wastewater treatment equipment, characterized in that: include: Cyclone filtration system, coalescing oil remover, precision filter, desalination system; The cyclone filtration system comprises: a cyclone filter, a mixer, a micro-nano bubble generator, a stabilizer, and an air dissolving pump; The cyclone filter comprises: a cylinder, an upper head and a lower head; The upper head and the lower head are respectively arranged at the upper end and the lower end of the cylinder; The upper part of the cylinder is a cyclone oil removal area and the lower part is a filtration area; Water inlets are tangentially arranged on both sides of the upper end of the cylinder. An oil collecting micro-cavity is also provided on the inner wall of the upper end of the cylinder, and an oil drain pipe is provided in the oil collecting micro-cavity for draining oil dirt; The upper cover is also provided with an exhaust port; The water inlet is connected to the outlet of the mixer, the inlet of the micro-nano bubble generator is connected to the outlet of the stabilization tank, and the outlet of the micro-nano bubble generator is connected to the mixer; The inlet of the stabilization tank is connected to the outlet of the dissolved air pump; After the oily wastewater and the water treated by the micro-nano bubble generator are mixed in the mixer, the water flows into the cyclone oil removal area of ​​the cylinder in a tangential manner from the water inlet to produce a cyclone flotation effect, thereby enhancing the separation and recovery efficiency of the waste oil; The lower end of the cylinder is located in the filtering area and is also provided with a plurality of filter elements for filtering solid impurities; A water outlet is also provided on the side wall of the lower end of the cylinder; The oil drain pipe is provided with a first control valve, and the oil collecting microcavity is provided with a first liquid level gauge; the first liquid level gauge is connected to the first control valve and is used to control the oil drain pipe to drain oil; The water outlet is provided with a second control valve, and the cylinder is provided with a second liquid level gauge in the cyclone oil removal area; the second liquid level gauge is connected to the second control valve for controlling water discharge; The exhaust port is provided with a third control valve, and the upper cover is also provided with a pressure transmitter, and the pressure transmitter is connected to the third control valve for controlling the exhaust of the exhaust port; The inlet of the coalescing oil remover is connected to the second control valve, the outlet of the coalescing oil remover is connected to the precision filter, and the precision filter is connected to the desalination system.

2. The highly emulsified oily wastewater treatment equipment according to claim 1, characterized in that: The cyclone deoiling zone of the cylinder is also provided with a dissolved air water outlet, which is connected to the inlet of a dissolved air pump, and the dissolved air pump is used to dissolve gas in the liquid; The dissolved air pump dissolves oxygen-free gas and mixes it with the oily wastewater, promoting the transfer of oxygen in the water into the gas, which is discharged through the exhaust port to achieve a deoxygenation effect.

3. The highly emulsified oily wastewater treatment equipment according to claim 1, characterized in that: A dissolved air water inlet is also provided on the side wall of the lower head; The dissolved air water inlet is also connected to the outlet of the micro-nano bubble generator.

4. The highly emulsified oily wastewater treatment equipment according to claim 3, characterized in that: A backwash water outlet is also provided on the lower side of the lower head for discharging the water after cleaning the filter element.

5. The highly emulsified oily wastewater treatment equipment according to claim 1, characterized in that: The filter element is a hydrophilic sintered filter element; The upper side and the lower side of the filter element are both provided with partition plates.

6. The highly emulsified oily wastewater treatment equipment according to claim 1, characterized in that: The water outlet is also the backwash water inlet, and clean water is injected through the backwash water inlet to clean the filter element.

7. The highly emulsified oily wastewater treatment equipment according to claim 1, characterized in that: The particle size of the micro-nano bubbles generated by the micro-nano bubble generator is between 0.1 and 100 microns. The micro-nano bubbles adhere to the surface of the filter element and the interface membrane between the filter element and the liquid, so as to clean the filter element and extend the maintenance cycle.

8. The highly emulsified oily wastewater treatment equipment according to claim 1, characterized in that: The desalination system is an electric adsorber.

9. The highly emulsified oily wastewater treatment equipment according to claim 1, characterized in that: The desalination system is an electrodialyzer; The electrodialyzer comprises: an anode, a cathode, and a concentration chamber and a desalination chamber arranged between the anode and the cathode; The water treated by the precision filter enters the concentration chamber and the desalination chamber for further treatment.

10. The highly emulsified oily wastewater treatment equipment according to claim 1, characterized in that: The desalination system is a reverse osmosis treatment system.

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