Electro-Fenton device for efficiently degrading novel pollutants in municipal sewage treatment plant

Abstract

The invention discloses an electro-Fenton device for efficiently degrading novel pollutants in an urban sewage treatment plant. The electro-Fenton device comprises a regulating tank, an electro-Fenton treatment tank and a sedimentation tank, a water inlet pipe is connected into the adjusting tank, a fixing plate is arranged on the adjusting tank, a stirring mechanism is arranged on the fixing plate, and the stirring mechanism extends into the adjusting tank; a first water pumping mechanism is arranged between the regulating tank and the electro-Fenton treatment tank; a plurality of anode plates and a plurality of cathode plates are arranged in the electro-Fenton treatment tank, the plurality of anode plates and the plurality of cathode plates are respectively externally connected with a power supply, the plurality of anode plates are sequentially and fixedly connected to one side edge of the electro-Fenton treatment tank, and the plurality of cathode plates are sequentially and fixedly connected to the other side edge of the electro-Fenton treatment tank; the plurality of anode plates and the plurality of cathode plates are arranged in a crossed manner, so that a snakelike water channel is formed in the electro-Fenton treatment tank; a second water pumping mechanism is arranged between the electro-Fenton treatment tank and the sedimentation tank; a water outlet pipe is connected into the sedimentation tank.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and in particular to an electro-Fenton device for efficiently degrading new pollutants in urban sewage treatment plants. Background Art

[0002] The Fenton process is one of the advanced oxidation processes, but due to some of its shortcomings, the reaction will produce iron-containing sludge, the Fenton reagent needs to be added externally, and the reaction can only be carried out under strong acid conditions, which limits its application in practical engineering. In order to improve the Fenton process, the electro-Fenton process came into being. The electro-Fenton process successfully combines the electrochemical process with the Fenton process. The essence of this process is that the Fenton reagent can be continuously produced by the electrochemical process to treat difficult-to-degrade pollutants.

[0003] When in use, the electro-Fenton device electrolyzes and oxidizes the sewage by energizing the anode and cathode plates, causing the ions in the sewage to oxidize, degrade and precipitate, and filter out the organic pollutants in the sewage. However, the current electro-Fenton device often suffers from insufficient reaction when treating sewage. Summary of the invention

[0004] The main purpose of the present invention is to provide an electro-Fenton device for efficiently degrading new pollutants in urban sewage treatment plants, aiming to solve the above-mentioned problems.

[0005] To achieve the above-mentioned purpose, the present invention proposes an electro-Fenton device for efficiently degrading new pollutants in urban sewage treatment plants, comprising a regulating tank, an electro-Fenton treatment tank and a sedimentation tank;

[0006] The regulating tank is connected with a water inlet pipe, the regulating tank is provided with a fixing plate, the fixing plate is provided with a stirring mechanism, and the stirring mechanism extends into the regulating tank;

[0007] A first pumping mechanism is provided between the regulating tank and the electro-Fenton treatment tank, and the first pumping mechanism is used to pump water in the regulating tank into the electro-Fenton treatment tank;

[0008] The electro-Fenton treatment tank is provided with a plurality of anode plates and a plurality of cathode plates, the plurality of anode plates and the plurality of cathode plates are respectively connected to external power supplies, the plurality of anode plates are sequentially fixedly connected to one side of the electro-Fenton treatment tank, and the plurality of cathode plates are sequentially fixedly connected to the other side of the electro-Fenton treatment tank; the plurality of anode plates and the plurality of cathode plates are cross-arranged to form a serpentine waterway in the electro-Fenton treatment tank;

[0009] A second pumping mechanism is provided between the electro-Fenton treatment tank and the sedimentation tank, and the second pumping mechanism is used to pump water in the electro-Fenton treatment tank into the sedimentation tank;

[0010] A water outlet pipe is connected in the sedimentation tank.

[0011] Furthermore, the stirring mechanism includes a motor, a main shaft and a plurality of stirring blades;

[0012] The motor is fixedly connected to the fixed plate, the main shaft is connected to the motor, and the main shaft passes through the fixed plate and extends into the bottom of the regulating tank; the plurality of stirring blades are fixedly connected to the main shaft in sequence.

[0013] Furthermore, the paddle is provided with a plurality of through holes.

[0014] Furthermore, an aeration mechanism is also provided in the electro-Fenton treatment tank, and the aeration mechanism includes an aerator, an aeration main pipe and a plurality of aeration branch pipes;

[0015] The aerator is arranged outside the electro-Fenton treatment tank, and the aeration main pipe is connected to the aerator; the plurality of aeration branch pipes are respectively connected to the aeration main pipe, and the plurality of aeration branch pipes extend into the electro-Fenton treatment tank respectively, and the aeration branch pipes are provided with a plurality of aeration holes, and the aeration holes face the anode plate and / or the cathode plate.

[0016] Further, the first pumping mechanism includes a first mounting plate, a first water pump and a first water pipe;

[0017] The first mounting plate is fixedly connected between the regulating tank and the electro-Fenton treatment tank, and the water pump is fixedly connected to the first mounting plate; one end of the first water pipe extends into the regulating tank, and the other end of the first water pipe passes through the first water pump and extends into the electro-Fenton treatment tank.

[0018] Furthermore, the second pumping mechanism includes a second mounting plate, a second water pump and a second water pipe;

[0019] The second mounting plate is fixedly connected between the electro-Fenton treatment tank and the sedimentation tank, and the water pump is fixedly connected to the second mounting plate; one end of the second water pipe extends into the electro-Fenton treatment tank, and the other end of the second water pipe passes through the second water pump and extends into the sedimentation tank.

[0020] In the technical solution of the present invention, urban sewage enters the regulating tank 1 from the water inlet pipe 4. According to the pH value of the sewage in the regulating tank 1 and the volume of the sewage in the regulating tank 1, an appropriate amount of reagent is added into the regulating tank 1 to adjust the pH value in the regulating tank 1. Moreover, after the reagent is added, the stirring mechanism still stirs the sewage and the reagent in the regulating tank 1 to fully mix the reagent and the sewage, thereby accelerating the adjustment speed. When the pH value in the regulating tank 1 is adjusted to a preset value, the sewage in the regulating tank 1 is pumped into the electro-Fenton treatment tank 2 through the first pumping mechanism, and the sewage Water flows from one end of the electro-Fenton treatment tank 2 along a serpentine waterway 8 formed by the cross arrangement of multiple anode plates 6 and multiple cathode plates 7 to the other end of the electro-Fenton treatment tank 2. Since the sewage flows along the serpentine waterway 8, the sewage flows faster in the electro-Fenton treatment tank 2, so that the organic matter in the sewage can fully contact and react with the oxidizing substances produced between the anode plates 6 and the cathode plates 7; finally, the second pumping mechanism pumps the sewage in the electro-Fenton treatment tank 2 into the sedimentation tank 3, and the sewage is discharged from the outlet pipe 24 after being precipitated in the sedimentation tank 3 for a period of time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the structure of the electro-Fenton device of the present invention for efficiently degrading new pollutants in urban sewage treatment plants.

[0023] Figure 2 The present invention is a schematic diagram of the structure of the regulating tank in the electro-Fenton device for efficiently degrading new pollutants in urban sewage treatment plants.

[0024] Figure 3 for Figure 1 Enlarged view of part A in .

[0025] Explanation of the accompanying numbers: 1-regulating tank, 2-electro-Fenton treatment tank, 3-sedimentation tank, 4-water inlet pipe, 5-fixed plate, 6-anode plate, 7-cathode plate, 8-serpentine waterway, 9-aeration main pipe, 11-main shaft, 12-mixing blade, 13-through hole, 14-motor, 15-aerator, 16-aeration branch pipe, 17-aeration hole, 18-first mounting plate, 19-first water pump, 20-first water pipe, 21-second mounting plate, 22-second water pump, 23-second water pipe, 24-outlet pipe.

[0026] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0029] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0032] Please refer to Figure 1-Figure 3 , an electro-Fenton device for efficiently degrading new pollutants in urban sewage treatment plants, comprising a regulating tank 1, an electro-Fenton treatment tank 2 and a sedimentation tank 3;

[0033] The regulating tank 1 is connected to a water inlet pipe 4, and a fixing plate 5 is provided on the regulating tank 1. A stirring mechanism is provided on the fixing plate 5, and the stirring mechanism extends into the regulating tank 1;

[0034] A first pumping mechanism is provided between the regulating tank 1 and the electro-Fenton treatment tank 2, and the first pumping mechanism is used to pump water in the regulating tank 1 into the electro-Fenton treatment tank 2;

[0035] The electro-Fenton treatment tank 2 is provided with a plurality of anode plates 6 and a plurality of cathode plates 7, the plurality of anode plates 6 and the plurality of cathode plates 7 are respectively connected to external power supplies, the plurality of anode plates 6 are sequentially fixedly connected to one side of the electro-Fenton treatment tank 2, and the plurality of cathode plates 7 are sequentially fixedly connected to the other side of the electro-Fenton treatment tank 2; the plurality of anode plates 6 and the plurality of cathode plates 7 are cross-arranged so as to form a serpentine waterway 8 in the electro-Fenton treatment tank 2;

[0036] A second pumping mechanism is provided between the electro-Fenton treatment tank 2 and the sedimentation tank 3, and the second pumping mechanism is used to pump water in the electro-Fenton treatment tank 2 into the sedimentation tank 3;

[0037] The sedimentation tank 3 is connected with a water outlet pipe 24 .

[0038] In this embodiment, urban sewage enters the regulating tank 1 from the water inlet pipe 4. According to the pH value of the sewage in the regulating tank 1 and the volume of the sewage in the regulating tank 1, an appropriate amount of reagent is added into the regulating tank 1 to adjust the pH value in the regulating tank 1. Moreover, after the reagent is added, the stirring mechanism still stirs the sewage and the reagent in the regulating tank 1 to fully mix the reagent and the sewage, thereby accelerating the adjustment speed. When the pH value in the regulating tank 1 is adjusted to a preset value, the sewage in the regulating tank 1 is pumped into the electro-Fenton treatment tank 2 through the first pumping mechanism, and the sewage From one end of the electro-Fenton treatment tank 2, the sewage flows along the serpentine waterway 8 formed by the cross arrangement of multiple anode plates 6 and multiple cathode plates 7 to the other end of the electro-Fenton treatment tank 2. Since the sewage flows along the serpentine waterway 8, the sewage flows faster in the electro-Fenton treatment tank 2, so that the organic matter in the sewage can fully contact and react with the oxidizing substances produced between the anode plates 6 and the cathode plates 7; finally, the second pumping mechanism pumps the sewage in the electro-Fenton treatment tank 2 into the sedimentation tank 3, and the sewage is discharged from the outlet pipe 24 after being precipitated in the sedimentation tank 3 for a period of time.

[0039] Furthermore, the stirring mechanism includes a motor 14, a main shaft 11 and a plurality of stirring blades 12;

[0040] The motor 14 is fixedly connected to the fixed plate 5 , the main shaft 11 is connected to the motor 14 , and the main shaft 11 passes through the fixed plate 5 and extends into the bottom of the regulating tank 1 ; the plurality of stirring blades 12 are fixedly connected to the main shaft 11 in sequence.

[0041] In this embodiment, the working principle of the stirring mechanism is as follows: after the staff puts the reagent into the regulating tank 1, the motor 14 is started, and the motor 14 drives the main shaft 11 and the multiple stirring blades 12 connected to the main shaft 11 to rotate together. The rotation of the stirring blades 12 will drive the sewage in the regulating tank 1 to rotate, so that the sewage in the regulating tank 1 and the reagent are fully fused and reacted.

[0042] Furthermore, a plurality of through holes 13 are formed on the paddle.

[0043] In this embodiment, by opening a through hole 13 in the blade, the fluctuation of sewage in the regulating tank 1 is reduced when the blade rotates.

[0044] Furthermore, an aeration mechanism is also provided in the electro-Fenton treatment tank 2, and the aeration mechanism includes an aerator 15, an aeration main pipe 9 and a plurality of aeration branch pipes 16;

[0045] The aerator 15 is arranged outside the electro-Fenton treatment tank 2, and the aeration main pipe 9 is connected to the aerator 15; the multiple aeration branch pipes 16 are respectively connected to the aeration main pipe 9, and the multiple aeration branch pipes 16 are respectively extended into the electro-Fenton treatment tank 2, and the aeration branch pipes 16 are provided with multiple aeration holes 17, and the aeration holes 17 face the anode plate 6 and / or the cathode plate 7.

[0046] In this embodiment, an aeration mechanism is provided to aerate the electro-Fenton treatment tank 2, so that the organic matter in the sewage in the electro-Fenton treatment tank 2 can further contact and react with the oxidizing substances generated between the anode plate 6 and the cathode plate 7. In addition, since the aeration holes 17 on the aeration branch pipe 16 face the anode plate 6 and / or the cathode plate 7, the bubbles coming out of the aeration holes 17 can also effectively flush the impurities attached to the anode plate 6 and / or the cathode plate 7.

[0047] Furthermore, the first pumping mechanism includes a first mounting plate 18, a first water pump 19 and a first water pipe 20;

[0048] The first mounting plate 18 is fixedly connected between the regulating tank 1 and the electro-Fenton treatment tank 2, and the water pump is fixedly connected to the first mounting plate 18; one end of the first water pipe 20 extends into the regulating tank 1, and the other end of the first water pipe 20 passes through the first water pump 19 and extends into the electro-Fenton treatment tank 2.

[0049] Furthermore, the second pumping mechanism includes a second mounting plate 21, a second water pump 22 and a second water pipe 23;

[0050] The second mounting plate 21 is fixedly connected between the electro-Fenton treatment tank 2 and the sedimentation tank 3, and the water pump is fixedly connected to the second mounting plate 21; one end of the second water pipe 23 extends into the electro-Fenton treatment tank 2, and the other end of the second water pipe 23 passes through the second water pump 22 and extends into the sedimentation tank 3.

[0051] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. An electro-Fenton device for efficiently degrading new pollutants in urban sewage treatment plants, characterized in that: Includes regulating tanks, electro-Fenton treatment tanks and sedimentation tanks; The regulating tank is connected with a water inlet pipe, the regulating tank is provided with a fixing plate, the fixing plate is provided with a stirring mechanism, and the stirring mechanism extends into the regulating tank; A first pumping mechanism is provided between the regulating tank and the electro-Fenton treatment tank, and the first pumping mechanism is used to pump water in the regulating tank into the electro-Fenton treatment tank; The electro-Fenton treatment tank is provided with a plurality of anode plates and a plurality of cathode plates, the plurality of anode plates and the plurality of cathode plates are respectively connected to external power supplies, the plurality of anode plates are sequentially fixedly connected to one side of the electro-Fenton treatment tank, and the plurality of cathode plates are sequentially fixedly connected to the other side of the electro-Fenton treatment tank; the plurality of anode plates and the plurality of cathode plates are cross-arranged to form a serpentine waterway in the electro-Fenton treatment tank; A second pumping mechanism is provided between the electro-Fenton treatment tank and the sedimentation tank, and the second pumping mechanism is used to pump water in the electro-Fenton treatment tank into the sedimentation tank; A water outlet pipe is connected in the sedimentation tank.

2. The electro-Fenton device for efficiently degrading new pollutants in urban sewage treatment plants according to claim 1 is characterized in that: The stirring mechanism includes a motor, a main shaft and a plurality of stirring blades; The motor is fixedly connected to the fixed plate, the main shaft is connected to the motor, and the main shaft passes through the fixed plate and extends into the bottom of the regulating tank; the plurality of stirring blades are fixedly connected to the main shaft in sequence.

3. The electro-Fenton device for efficiently degrading new pollutants in urban sewage treatment plants according to claim 2 is characterized in that: The paddle is provided with a plurality of through holes.

4. The electro-Fenton device for efficiently degrading new pollutants in urban sewage treatment plants according to claim 1 is characterized in that: The electro-Fenton treatment tank is also provided with an aeration mechanism, which includes an aerator, an aeration main pipe and a plurality of aeration branch pipes; The aerator is arranged outside the electro-Fenton treatment tank, and the aeration main pipe is connected to the aerator; the plurality of aeration branch pipes are respectively connected to the aeration main pipe, and the plurality of aeration branch pipes extend into the electro-Fenton treatment tank respectively, and the aeration branch pipes are provided with a plurality of aeration holes, and the aeration holes face the anode plate and / or the cathode plate.

5. The electro-Fenton device for efficiently degrading new pollutants in urban sewage treatment plants according to claim 1 is characterized in that: The first pumping mechanism includes a first mounting plate, a first water pump and a first water pipe; The first mounting plate is fixedly connected between the regulating tank and the electro-Fenton treatment tank, and the water pump is fixedly connected to the first mounting plate; one end of the first water pipe extends into the regulating tank, and the other end of the first water pipe passes through the first water pump and extends into the electro-Fenton treatment tank.

6. The electro-Fenton device for efficiently degrading new pollutants in urban sewage treatment plants according to claim 1 is characterized in that: The second pumping mechanism includes a second mounting plate, a second water pump and a second water pipe; The second mounting plate is fixedly connected between the electro-Fenton treatment tank and the sedimentation tank, and the water pump is fixedly connected to the second mounting plate; one end of the second water pipe extends into the electro-Fenton treatment tank, and the other end of the second water pipe passes through the second water pump and extends into the sedimentation tank.

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