Electro-Fenton device for high-concentration organic wastewater

Abstract

The utility model discloses an electro-Fenton device for high-concentration organic wastewater, which relates to the technical field of wastewater treatment, comprises a shell, a water inlet and a water outlet are respectively arranged on two sides of the shell, and is characterized in that a reaction area, a separation area and a slag scraping area which are sequentially communicated are respectively arranged in the shell along the direction from the water inlet to the water outlet; the reaction zone is communicated with the water inlet; the separation area comprises a first flow guide plate and a second flow guide plate which are arranged at an interval, a first channel is formed between the first flow guide plate and the side wall of the reaction area, a second channel is formed between the first flow guide plate and the second flow guide plate, and a gap is formed between the bottom of the first flow guide plate and the bottom of the shell; the first channel is communicated with the second channel; the slag scraping area is communicated with the first channel, and a slag scraping assembly is arranged at the top of the slag scraping area and used for scraping pollutants on the upper surface of the liquid.

Description

TECHNICAL FIELD

[0001] The utility model relates to wastewater treatment technical field, especially a kind of electric fenton device for high concentration organic wastewater. BACKGROUND

[0002] With the acceleration of industrialization, the treatment of high concentration organic wastewater becomes an important problem to be solved in the field of environmental protection. This kind of wastewater usually contains a large amount of organic matter which is difficult to biodegrade. Direct discharge not only seriously pollutes water bodies, but also causes long-term harm to the ecological environment. Traditional wastewater treatment methods, such as physical sedimentation, chemical oxidation and biological treatment, often have limited effect when treating high concentration organic wastewater, and have problems such as long treatment cycle, high cost and easy secondary pollution.

[0003] To solve the above problems, electric fenton technology, as an efficient and environmentally friendly advanced oxidation process, has gradually attracted attention because it can quickly degrade organic matter and improve the biodegradability of wastewater. Electric fenton device generates hydroxyl radicals with strong oxidizing properties through electrochemical reaction. These free radicals can selectively attack and degrade organic matter in wastewater, thereby achieving the purpose of purifying water quality. However, in the process of treating high concentration organic wastewater, the wastewater often contains pollutants with different specific gravities and properties.

[0004] Most of the electric fenton devices in the prior art only focus on the optimization of electrochemical reaction zone, and do not consider the separation and removal of pollutants in the wastewater after reaction. Especially when treating high concentration organic wastewater, if the suspended solids, colloids and dissolved organic matter with different specific gravities in the wastewater cannot be effectively separated, it will affect the subsequent treatment effect. UTILITY MODEL CONTENT

[0005] To solve the technical problem that the existing technology cannot effectively separate the large amount of suspended solids with different specific gravities in the wastewater, the utility model provides an electric fenton device for high concentration organic wastewater.

[0006] The technical solution adopted by the utility model is:

[0007] An electric fenton device for high concentration organic wastewater, comprising a shell, the shell is provided with a water inlet and a water outlet on both sides respectively, and the shell is provided with a reaction zone, a separation zone and a slag scraping zone connected in sequence inside along the direction from the water inlet to the water outlet.

[0008] The reaction zone is communicated with the water inlet.

[0009] The separation zone comprises a first baffle and a second baffle, the first baffle and the second baffle are spaced apart, a first channel is formed between the first baffle and the side wall of the reaction zone, a second channel is formed between the first baffle and the second baffle, and a space is formed between the bottom of the first baffle and the bottom of the shell to allow the first channel and the second channel to communicate.

[0010] The slag scraping zone communicates with the first channel, and a slag scraping assembly is arranged at the top of the slag scraping zone for scraping off the contaminants on the upper surface of the liquid.

[0011] Preferably, the reaction zone comprises a medicament adding zone and an electrolysis zone, one side of the medicament adding zone communicates with the water inlet, and the other side of the medicament adding zone communicates with the electrolysis zone.

[0012] Preferably, the medicament adding zone is provided with a stirring assembly, the stirring assembly comprises a first driving member and a stirring member, and the output end of the first driving member is connected with the stirring member.

[0013] Preferably, at least one cathode plate and one anode plate are arranged in the electrolysis zone, and the cathode plate and the anode plate are arranged opposite to each other.

[0014] Preferably, a three-dimensional particle electrode is further arranged between the cathode plate and the anode plate.

[0015] Preferably, an aeration pipe is arranged below the cathode plate and the anode plate.

[0016] Preferably, the slag scraping assembly comprises a second driving member, a transmission member and a slag scraping member, the second driving member is connected with the transmission member, the transmission member is connected with the slag scraping member, the transmission member is used to drive the slag scraping member to make reciprocating motion, the slag scraping member is used to scrape off the contaminants on the upper surface of the liquid, one side of the slag scraping assembly is provided with a discharge hopper, and the discharge hopper is used to receive the scraped contaminants.

[0017] Preferably, one side of the slag scraping zone is further provided with a water storage zone, one side of the water storage zone communicates with the slag scraping zone through a pipeline, and the other side of the water storage zone communicates with the water outlet.

[0018] Preferably, the electrolysis zone, the separation zone and the slag scraping zone are all provided with a sedimentation hopper.

[0019] The utility model discloses a beneficial effect is: in the reaction area, wastewater passes through electric fenton reaction and produces strong oxidizing hydroxyl radical, and the organic matter is degraded fast. Subsequently, wastewater enters the separation area, utilizes the two water flow channels formed with the first deflector and the second deflector, realizes the effective separation of the pollutant of different specific gravity. The pollutant of big specific gravity is settled to the bottom under the action of gravity, and the pollutant of small specific gravity is with water flow into the slag scraping area, and the pollutant on the liquid upper surface is scraped through the slag scraping component, thereby improve the removal efficiency of the pollutant in wastewater. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the side view perspective structure schematic diagram of the utility model;

[0021] Figure 2 It is the side view structure schematic diagram of the electrolytic area of the utility model;

[0022] Figure 3 It is the side view structure schematic diagram of the slag scraping component of the utility model.

[0023] Sign: 1, shell; 10, reaction area; 100, medicament adding area; 101, electrolytic area; 102, cathode plate; 103, anode plate; 104, three-dimensional particle electrode; 105, aeration pipe; 11, separation area; 110, first deflector; 111, second deflector; 112, first channel; 113, second channel; 12, slag scraping area; 120, pipeline; 2, water inlet; 3, water outlet; 4, slag scraping component; 41, second driving part; 42, transmission part; 43, slag scraping part; 44, discharge hopper; 5, stirring component; 51, first driving part; 52, stirring part; 6, water storage area; 61, water valve; 7, sedimentation hopper. DETAILED DESCRIPTION

[0024] In order to make the purpose, scheme and advantage of the utility model more clearly and clearly, the utility model is further explained in detail below by combining with the embodiment and the drawing, and the illustrative embodiment and the explanation thereof of the utility model are only used to explain the utility model, and do not serve as the limitation to the utility model.

[0025] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the utility model. However, it is apparent to those skilled in the art that the specific details need not be used to practice the utility model. In other embodiments, well-known structures, circuits, materials or methods are not specifically described in order to avoid obscuring the utility model.

[0026] Reference throughout this specification to "one embodiment", "an embodiment", "one design", or "a design" means that a particular feature, structure, or characteristic described in connection with the embodiment or design is included in at least one embodiment of the application. The appearances of the phrases "in one embodiment", "in an embodiment", "in one design", or "in a design" in various places in the specification are not necessarily all referring to the same embodiment or design. Furthermore, the particular features, structures, or characteristics can be combined in any suitable

[0027] In the description of the present application, the terms "front", "back", "left", "right", "top", "bottom", "vertical", "horizontal", "high", "low", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the present application.

[0028] As shown in Figure 1 The present embodiment provides an electro-Fenton device for high-concentration organic wastewater, which comprises a shell 1, the shell 1 is provided with a water inlet 2 and a water outlet 3 on both sides, respectively, and the shell 1 is provided with a reaction zone 10, a separation zone 11 and a slag scraping zone 12 connected in sequence from the water inlet 2 to the water outlet 3 inside the shell 1; the reaction zone 10 is communicated with the water inlet 2; the separation zone 11 comprises a first flow guide plate 110 and a second flow guide plate 111, the first flow guide plate 110 and the second flow guide plate 111 are arranged at intervals, the first flow guide plate 110 and the side wall of the reaction zone 10 form a first channel 112, the first flow guide plate 110 and the second flow guide plate 111 form a second channel 113, and the first flow guide plate 110 and the bottom of the shell 1 are spaced apart to communicate the first channel 112 and the second channel 113; the slag scraping zone 12 is communicated with the first channel 112, and the top of the slag scraping zone 12 is provided with a slag scraping assembly 4, which is used for scraping off the pollutants on the upper surface of the liquid.

[0029] It should be noted that Figure 1 The arrow in the figure represents the direction of water flow.

[0030] For reference, both inlet 2 and outlet 3 are connected to the shell 1 via flanges. Electrodes and electrolyte are configured within the reaction zone 10. The electrodes typically use iron plates or iron mesh as the anode to provide the iron source needed to generate Fe2+ ions; the cathode is made of a suitable material, such as graphite or stainless steel. Through the electrolytic reaction, highly oxidizing hydroxyl radicals are generated, which can efficiently decompose organic pollutants in the wastewater.

[0031] For reference, such as Figure 1 The first guide plate 110 is vertically installed on the top of the shell 1. A first channel 112 is formed between the first guide plate 110 and the side wall of the reaction zone 10. The top of the first channel 112 is connected to the reaction zone 10, and the wastewater passing through the reaction zone 10 flows into the first channel 112. The second guide plate 111 is installed at the bottom of the shell 1. The second guide plate 111 is spaced apart from the first guide plate 110 to form a second channel 113. A certain gap is left between the bottom of the first guide plate 110 and the bottom of the shell 1 to ensure that the first channel 112 and the second channel 113 are connected at the bottom, allowing the wastewater to flow freely between the two channels. The top of the second guide plate 111 is tilted away from the first guide plate 110, which helps light pollutants to enter the sludge scraping zone 12 more smoothly with the water flow.

[0032] By setting the first guide plate 110 and the second guide plate 111, specific first and second water flow channels are formed. Due to the gap between the bottom of the first guide plate 110 and the bottom of the shell 1, water can flow smoothly. Pollutants denser than water will settle directly to the bottom of the shell 1 under gravity. Pollutants less dense than water, such as oil or certain scum, will not easily sink but tend to float near the surface. Oil or certain scum can naturally flow with the water to the scum scraping area 12, facilitating centralized treatment by the subsequent scum scraping assembly 4.

[0033] Understandably, a cover is hinged to the shell 1 to prevent the spread of odors during the sewage treatment process.

[0034] In one possible implementation, such as Figure 1 As shown, the reaction zone 10 includes a reagent addition zone 100 and an electrolysis zone 101. One side of the reagent addition zone 100 is connected to the water inlet 2, and the other side of the reagent addition zone 100 is connected to the electrolysis zone 101.

[0035] For reference, such as Figure 1As shown, the medicament adding area 100 is located at the front end of the reaction area 10, directly communicating with the water inlet 2, and the wastewater enters the medicament adding area 100 through the water inlet 2, and then the necessary chemical agents are added into the medicament adding area 100 to adjust the pH value of the wastewater, and the treated wastewater enters the electrolyzer for subsequent electro-Fenton reaction.

[0036] In order to accelerate the speed of acid-base neutralization reaction and shorten the adjustment time, in a possible implementation, as shown in Figure 1 As shown, the medicament adding area 100 is provided with a stirring assembly 5, which includes a first driving member 51 and a stirring member 52, and the output end of the first driving member 51 is connected with the stirring member 52.

[0037] For reference, as shown in Figure 1 The first driving member 51 is selected as a motor, which is installed at the top of the medicament adding area 100 and connected with the stirring member 52 through a speed reducer or a shaft coupling. The stirring member 52 can be a stirring shaft, and the stirring shaft is provided with stirring paddles, which are installed on the rotating shaft through bearings or shaft sleeves and rotate with the rotating shaft. The shape and number of the stirring paddles are customized according to the size of the medicament adding area 100 and the wastewater treatment capacity to ensure the stirring effect.

[0038] In the present embodiment, the wastewater enters the medicament adding area 100 through the water inlet 2. The medicament adding device adds the required chemical agents into the wastewater. The stirring assembly 5 is started, and the motor drives the stirring member 52 to rotate to stir the wastewater to fully mix the chemical agents with the wastewater. The wastewater after stirring treatment enters the electrolysis area 101 for subsequent electro-Fenton reaction.

[0039] In a possible implementation, as shown in Figure 1 As shown in Figure 2 The electrolysis area 101 is provided with at least one cathode plate 102 and one anode plate 103, and the cathode plate 102 and the anode plate 103 are oppositely arranged.

[0040] For reference, as shown in Figure 2As shown, three cathode plates 102 and two anode plates 103 are arranged in the electrolysis zone 101. The cathode plates 102 and the anode plates 103 are arranged alternately to form multiple electrolysis units. The cathode plates 102 and the anode plates 103 are made of corrosion-resistant and conductive materials, such as titanium alloy coated with noble metal or graphite. The size and number of the plates are customized according to the size of the electrolysis zone 101, the wastewater treatment capacity, and the required electrolysis efficiency. The cathode plates 102 and the anode plates 103 are installed on both sides or top and bottom of the electrolysis zone 101 through appropriate fixing devices (such as brackets, bolts, etc.), ensuring the stability of the plates during the electrolysis process. When the wastewater enters the electrolysis zone 101, the organic pollutants in the wastewater undergo electrolysis between the cathode plates 102 and the anode plates 103. On the anode plates 103, iron ions (Fe2+) are oxidized to iron ions (Fe3+) and release electrons. These electrons are transmitted to the cathode plates 102 through wires. On the cathode plates 102, oxygen (O2) combines with water (H2O) to form hydroxyl radicals, which have strong oxidizing properties and can efficiently decompose organic pollutants in wastewater.

[0041] In one possible implementation, as shown in FIG. 1, a three-dimensional particle electrode 104 is arranged between the cathode plates 102 and the anode plates 103. Figure 2

[0042] Referring to FIG. 1, the space between the cathode plates 102 and the anode plates 103 is filled with three-dimensional particle electrodes 104. These particle electrodes are composed of small particles or fibers with good conductivity, such as activated carbon particles, carbon fibers, metal oxide particles, etc. The shape and size of the three-dimensional particle electrodes 104 can be customized as needed to ensure uniform distribution in the electrolysis zone 101. The cathode plates 102 and the anode plates 103 are connected to the positive and negative poles of the power supply through wires, respectively, forming an electrolysis loop. The three-dimensional particle electrodes 104 are electrically connected to the cathode plates 102 and the anode plates 103 through appropriate conductive media (such as conductive carbon black, graphite, etc.), ensuring the smooth progress of the electrolysis reaction.

[0043] In this embodiment, the three-dimensional particle electrodes 104 provide a larger electrolysis surface area, thereby improving the electrolysis efficiency.

[0044] In one possible implementation, as shown in FIG. 1, a three-dimensional particle electrode 104 is arranged between the cathode plates 102 and the anode plates 103. Figure 1 Figure 1 ​​As shown, the aeration pipe 105 extends along the length direction of the electrolysis zone 101 and is uniformly distributed with multiple aeration holes to ensure uniform aeration. The aeration pipe 105 is provided with compressed air from an external air source (such as an air compressor), which enters the electrolysis zone 101 through the aeration holes to form tiny bubbles and rise. These bubbles fully contact the pollutants in the wastewater and the hydroxyl radicals generated by electrolysis during the rising process, enhancing the oxidation reaction effect, while also helping to mix and uniformly distribute the wastewater.

[0045] In one possible implementation, as Figure 1 With Figure 3 As shown, the slag scraping assembly 4 includes a second driving member 41, a transmission member 42, and a slag scraping member 43. The second driving member 41 is connected to the transmission member 42, and the transmission member 42 is connected to the slag scraping member 43. The transmission member 42 is used to drive the slag scraping member 43 to reciprocate, and the slag scraping member 43 is used to scrape off the contaminants on the upper surface of the liquid. One side of the slag scraping assembly 4 is provided with a discharge hopper 44 for receiving the scraped contaminants.

[0046] For reference, as Figure 1 With Figure 3 As shown, the second driving member 41 can be a motor, which is fixedly installed on the top of the shell 1. The transmission member 42 can be a transmission chain, both ends of which are sleeved on two gears. The output end of the motor is connected to the gears. The transmission member 42 adopts a transmission chain, both ends of which are sleeved on two gears to form a closed loop structure. One gear is connected to the output end of the motor, and when the motor starts, this gear rotates with the motor output shaft, thereby driving the transmission chain to rotate. The other gear acts as a driven gear and rotates synchronously with the driving gear through the transmission action of the chain. As Figure 3 As shown, the slag scraping member 43 can be a slag scraping plate. The transmission chain is connected with a fixed block, and the fixed block is provided with a fixed plate. The fixed plate is connected to the slag scraping plate through bolts. The rotary motion of the motor is converted into the reciprocating motion of the slag scraping plate. The discharge hopper 44 is arranged on one side of the slag scraping assembly 4 for receiving the scraped contaminants. The shape and size of the discharge hopper 44 are customized according to the motion trajectory of the slag scraping member 43 and the discharge amount of the contaminants to ensure that the contaminants can be smoothly received and discharged. The bottom of the discharge hopper 44 is provided with a valve or a discharge port for controlling the discharge of the contaminants.

[0047] In this embodiment, when it is necessary to scrape the contaminants on the surface of the liquid, the motor is started, the motor drives the main gear to rotate, and in turn drives the transmission chain to rotate. The connecting piece or hook on the transmission chain drives the slag scraping piece 43 to reciprocate, and the slag scraping piece 43 continuously scrapes the contaminants on the surface of the liquid during the reciprocating movement. The scraped contaminants are pushed towards the discharge hopper 44, and when the amount of the scraped contaminants accumulated in the discharge hopper 44 reaches a certain amount, the valve or discharge port at the bottom of the discharge hopper 44 is opened to discharge the contaminants.

[0048] In a possible embodiment, as shown in Figure 1 One side of the slag scraping area 12 is also provided with a water storage area 6, one side of the water storage area 6 is in communication with the slag scraping area 12 through a pipeline 120, and the other side of the water storage area 6 is in communication with the water outlet 3. In a possible embodiment, the top of the water storage area 6 is provided with a valve for controlling the liquid level in the water storage area 6.

[0049] The pipeline 120 is located below the slag scraping area 12, but higher than the solid impurities that may be deposited on the bottom, so that the impurities cannot enter the water storage area 6. Oil or some floating slag materials will float on the water surface and will not enter the water storage area 6 through the pipeline 120. The water in the water storage area 6 can be discharged through the water outlet 3, and if the water level in the water storage area 6 rises relatively quickly, the water valve 61 can also be opened to pump the water in the water storage area 6 out through an external water pump.

[0050] In a possible embodiment, as shown in Figure 1 The electrolysis area 101, the separation area 11 and the slag scraping area 12 are all provided with a sediment hopper 7.

[0051] For reference, the electrolysis area 101 will generate solid impurities or precipitates. A sediment hopper 7 is arranged at the bottom or a suitable position of the electrolysis area 101 for collecting these impurities or precipitates. The bottom of the sediment hopper 7 is provided with a discharge port, which can be controlled by a valve. The separation area 11 is used for solid-liquid separation of the treated wastewater, and more solid impurities may be generated. A sediment hopper 7 is arranged at the bottom or a suitable position of the separation area 11 for collecting these impurities. The discharge port of the sediment hopper 7 can also be controlled by a valve to discharge the impurities when needed. The slag scraping area 12 may also have some solid impurities sinking to the bottom. A sediment hopper 7 is arranged at the bottom or a suitable position of the slag scraping area 12 for collecting these impurities, and the discharge port of the sediment hopper 7 can also be controlled by a valve to discharge the impurities when needed.

[0052] In summary, in the present embodiment, high-concentration organic wastewater enters the medicament adding area 100 through the flange-connected water inlet 2. According to the composition of the wastewater and the treatment requirements, an appropriate amount of chemical medicament is added in the medicament adding area 100, such as sulfuric acid to adjust the pH value to an acidic environment, and hydrogen peroxide (H2O2) as a strong oxidizing agent. The first driving member 51 (motor) of the stirring assembly 5 is started to drive the stirring member 52 (such as stirring shaft and stirring paddle) to rotate, and the wastewater and medicament are efficiently mixed. The stirring assembly 5 significantly accelerates the dispersion speed of the medicament, promotes the occurrence of acid-base neutralization reaction, and greatly shortens the pH value adjustment time. It ensures uniform distribution of the medicament, improves the effect of the subsequent electro-Fenton reaction, and the wastewater pretreated by the medicament and fully mixed flows into the electrolysis area 101.

[0053] In the electrolysis area 101, the cathode plate 102 and the anode plate 103 start to work with the aeration pipe 105 arranged below, continuously supplying oxygen to the wastewater, enhancing the gas-liquid mixing effect, and the electrolysis area 101 will produce solid impurities or precipitates. A sediment hopper 7 is arranged at the bottom of the electrolysis area 101 or at a suitable position to collect these impurities or precipitates. The bottom of the sediment hopper 7 is provided with a discharge port which can be controlled by a valve.

[0054] After the electro-Fenton reaction, the wastewater flows from the top of the electrolysis area 101 into the first channel 112 formed between the first guide plate 110 and the side wall of the reaction area 10. The pollutants with a specific gravity greater than water settle to the sediment hopper 7 at the bottom of the separation area 11 under the action of gravity, reducing the amount of pollutants entering the slag scraping area 12 with the water flow, and the light-weight pollutants (such as oil or scum) enter the slag scraping area 12 with the water flow. The pollutants with a specific gravity greater than water directly settle to the bottom of the shell 1 under the action of gravity and are collected in the sediment hopper 7.

[0055] In the slag scraping area 12, the slag scraping assembly 4 is started. The second driving member 41 (such as motor) drives the transmission member 42 (such as conveying chain) to rotate, and then drives the slag scraping member 43 (such as slag scraping plate) to reciprocate. The slag scraping member 43 continuously scrapes the pollutants on the surface of the liquid during the reciprocating motion and pushes them towards the discharge hopper 44. When the amount of scraped pollutants accumulated in the discharge hopper 44 reaches a certain amount, they are discharged by opening the valve or discharge port at the bottom of the discharge hopper 44.

[0056] After the slag scraping treatment, the water enters the water storage area 6 through the pipeline 120. The water in the water storage area 6 is discharged through the water outlet 3. If the water level in the water storage area 6 rises too fast, the water in the water storage area 6 can also be pumped out by opening the water valve 61 at the top of the water storage area 6.

[0057] The above-described embodiments only express the specific implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application.

Claims

1. An electro-Fenton device for high-concentration organic wastewater, comprising a shell (1), the shell (1) being provided with a water inlet (2) and a water outlet (3) on both sides respectively, characterized in that, The shell (1) is internally provided with a reaction zone (10), a separation zone (11) and a slag scraping zone (12) which are sequentially connected in communication along the direction from the water inlet (2) to the water outlet (3); The reaction zone (10) is in communication with the water inlet (2); The separation zone (11) comprises a first flow guide plate (110) and a second flow guide plate (111), the first flow guide plate (110) and the second flow guide plate (111) are arranged in a spaced manner, a first channel (112) is formed between the first flow guide plate (110) and the side wall of the reaction zone (10), a second channel (113) is formed between the first flow guide plate (110) and the second flow guide plate (111), and there is a spacing between the bottom of the first flow guide plate (110) and the bottom of the shell (1) so as to make the first channel (112) and the second channel (113) in communication; The slag scraping zone (12) is in communication with the first channel (112), and the top of the slag scraping zone (12) is provided with a slag scraping assembly (4) for scraping off the contaminants on the upper surface of the liquid.

2. The electro-Fenton device for high concentration organic wastewater according to claim 1, characterized in that, The reaction zone (10) comprises a medicament adding zone (100) and an electrolysis zone (101), one side of the medicament adding zone (100) is in communication with the water inlet (2), and the other side of the medicament adding zone (100) is in communication with the electrolysis zone (101).

3. The electro-Fenton device for high concentration organic wastewater according to claim 2, characterized in that, The medicament adding zone (100) is provided with a stirring assembly (5), the stirring assembly (5) comprises a first driving member (51) and a stirring member (52), and the output end of the first driving member (51) is connected with the stirring member (52).

4. The electro-Fenton device for high concentration organic wastewater according to claim 2, characterized in that, At least one cathode plate (102) and one anode plate (103) are arranged in the electrolysis zone (101), and the cathode plate (102) and the anode plate (103) are arranged in opposition.

5. The electro-Fenton device for high concentration organic wastewater according to claim 4, characterized in that, A three-dimensional particle electrode (104) is further arranged between the cathode plate (102) and the anode plate (103).

6. The electro-Fenton device for high concentration organic wastewater according to claim 5, characterized in that, An aeration pipe (105) is arranged below the cathode plate (102) and the anode plate (103).

7. The electro-Fenton device for high concentration organic wastewater according to claim 1, characterized in that, The slag scraping assembly (4) comprises a second driving member (41), a transmission member (42) and a slag scraping member (43), the second driving member (41) is connected with the transmission member (42), the transmission member (42) is connected with the slag scraping member (43), the transmission member (42) is used for driving the slag scraping member (43) to make reciprocating motion, the slag scraping member (43) is used for scraping off the contaminants on the upper surface of the liquid, and one side of the slag scraping assembly (4) is provided with a discharge hopper (44) for receiving the scraped contaminants.

8. The electro-Fenton device for high concentration organic wastewater according to claim 6, characterized in that, One side of the slag scraping zone (12) is further provided with a water storage zone (6), one side of the water storage zone (6) is in communication with the slag scraping zone (12) through a pipeline (120), and the other side of the water storage zone (6) is in communication with the water outlet (3).

9. The electro-Fenton device for high concentration organic wastewater according to claim 2, characterized in that, The electrolysis zone (101), the separation zone (11) and the slag scraping zone (12) are all provided with a sediment hopper (7).

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