Three-dimensional electrode electrocatalytic oxidation wastewater treatment equipment

Abstract

The utility model discloses three -dimensional electrode electrocatalytic oxidation wastewater treatment equipment, specifically related to wastewater treatment technical field, including processing box, is provided with processing assembly on the processing box, processing assembly includes the baffle of setting in the processing box inner chamber top, the baffle is embedded with a plurality of filter bags, and the middle part of a plurality of filter bags is provided with electrode cage respectively. The utility model generates strong oxidizing free radical through electrode cage, directly destroys the chemical structure of pollutant, realizes depth mineralization, and the processing effect is far more than traditional method, and the three -dimensional package formula and aeration design of electrode cage, expand the reaction area, promote mass transfer efficiency, solve the pain point of traditional processing slow, and the processing efficiency is improved significantly, and the complex wastewater working condition such as adaptation high salt, high COD, toxic and harmful, wide application range, satisfy environmental protection emission standard.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and more specifically, to a three-dimensional electrode electrocatalytic oxidation wastewater treatment device. Background Technology

[0002] Wastewater treatment is the process of removing pollutants (such as organic matter, heavy metals, suspended solids, etc.) from industrial or daily wastewater through physical, chemical, and biological technologies, so that the water quality meets discharge standards or reuse requirements, and ultimately avoids wastewater pollution of water bodies, soil and other environments.

[0003] However, traditional biological treatment and conventional chemical oxidation methods suffer from drawbacks such as low treatment efficiency, incomplete pollutant degradation, and difficulty in meeting stringent environmental standards when dealing with recalcitrant organic wastewater from industries such as chemical, pharmaceutical, and dyeing. At the same time, traditional treatment methods often rely on large amounts of chemical agents, resulting in large sludge production and easy secondary pollution. Furthermore, two-dimensional electrode electrocatalysis technology has the disadvantages of small reaction area and low mass transfer efficiency, making it difficult to adapt to complex wastewater conditions such as high salinity, high COD, and toxic and harmful substances. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a three-dimensional electrode electrocatalytic oxidation wastewater treatment device, which aims to solve the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a three-dimensional electrode electrocatalytic oxidation wastewater treatment device, including a treatment tank, on which a treatment component is provided; The processing assembly includes a partition disposed at the top of the inner cavity of the processing chamber, wherein a plurality of filter bags are embedded in the partition, and an electrode cage is disposed in the middle portion of each of the plurality of filter bags; A water inlet is provided on one side of the surface of the treatment tank, and a diversion port is provided on the top side of the inner wall of the treatment tank. The diversion port is located at the top of the partition and is connected to the water inlet.

[0006] Optionally, in a possible implementation, a foam discharge hopper is provided on the side of the treatment tank away from the inlet tank. The foam discharge hopper is located at the bottom of the partition and is connected to the treatment tank. It is used to discharge the foam on the surface of the wastewater at the bottom of the partition. An inlet pipe is provided at one end of the inlet tank. The inlet pipe is connected to a flange. A pump is provided on the top side of the treatment tank. Several aeration pipes are provided on the pump. One end of each of the aeration pipes passes through the treatment tank and extends to the top of two adjacent filter bags. A slag discharge hopper is provided at the bottom of the treatment tank. A cover plate is provided at the top of the treatment tank. The filter bags and electrode cages are detachably connected to the partition. An inlet hopper is provided at the top of the filter bags. The technical effects and advantages of this utility model are as follows: The electrode cage generates strong oxidizing free radicals, which directly destroy the chemical structure of pollutants and achieve deep mineralization. The treatment effect is far superior to traditional methods. The three-dimensional encapsulation and aeration design of the electrode cage expands the reaction area and improves mass transfer efficiency, solving the pain point of slow traditional treatment speed and significantly improving treatment efficiency. Furthermore, the filter bag and electrode cage are detachable and equipped with a foam discharge hopper and a slag discharge hopper, which facilitates maintenance and cleaning, solves the problem of cumbersome subsequent operation and maintenance of the equipment, and is suitable for complex wastewater conditions such as high salt, high COD, and toxic and harmful substances. It has a wide range of applications and meets environmental emission standards. Attached Figure Description

[0007] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this disclosure.

[0008] Figure 1 This is a front view of the overall structure of this utility model.

[0009] Figure 2 This is a schematic diagram of the processing component of this utility model.

[0010] Figure 3 This is a schematic diagram of the treatment box, foam hopper, water inlet pipe, diversion port, pump and aeration pipe of this utility model.

[0011] Figure 4 This is a schematic diagram showing the partition, filter bag, and electrode cage of this utility model installed together.

[0012] Figure 5 This is a schematic diagram of the partition, filter bag and electrode cage of this utility model.

[0013] The attached diagram is labeled as follows: 1. Treatment box; 2. Baffle plate; 3. Filter bag; 4. Electrode cage; 5. Foam discharge hopper; 6. Water inlet tank; 7. Water inlet pipe; 8. Diversion port; 9. Pump; 10. Aeration pipe; 11. Cover plate; 12. Slag discharge hopper. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] This embodiment discloses a three-dimensional electrode electrocatalytic oxidation wastewater treatment device, which aims to solve the problems of poor treatment effect and high risk of secondary pollution of traditional wastewater treatment technologies for recalcitrant organic wastewater. The specific structure and working principle are as follows: Specifically, treatment tank 1 is made of 304 stainless steel and has an overall rectangular structure. It possesses corrosion resistance and high strength, providing a stable reaction space for wastewater treatment. Its structure is shown in the attached figure. Figure 1 As shown.

[0016] As attached Figure 2 Appendix Figure 4 Appendix Figure 5 As shown, a partition 2 is horizontally fixed at the top of the inner cavity of the treatment tank 1. The partition 2 is made of PVC and has several filter bags 3 evenly embedded on it. The filter bags 3 are made of polypropylene membrane material and have a funnel-shaped water inlet formed on the top to facilitate the rapid flow of wastewater. Each filter bag 3 is equipped with an electrode cage 4 in the middle. The electrode cage 4 is a cylindrical structure and uses a titanium-based lead dioxide coated electrode as the anode and a stainless steel mesh as the cathode. The surface of the cage is evenly perforated to ensure that the wastewater is in full contact with the electrode. The filter bags 3 and the electrode cage 4 are detachably connected to the partition 2 by a snap-fit ​​structure. The snap-fit ​​is made of engineering plastic material, which is convenient for later disassembly, replacement, cleaning and maintenance.

[0017] The inlet tank 6 is located on one side of the treatment tank 1 and is connected to the side wall of the treatment tank 1 via a flange. A diversion port 8 is correspondingly provided at the connection point. A grid plate is installed inside the diversion port 8 to prevent large particles of impurities from entering the treatment component area, as shown in the attached figure. Figure 3 As shown.

[0018] The foam discharge hopper 5 is located on the side of the treatment tank 1 away from the inlet tank 6. It is made of stainless steel and is funnel-shaped. Its upper end is welded and fixed to the side wall of the treatment tank 1, and its interface is located at the bottom of the partition plate 2, communicating with the inner cavity of the treatment tank 1. It is used to promptly discharge surface foam generated during wastewater treatment. (See attached image.) Figure 1 Appendix Figure 3 As shown.

[0019] The inlet pipe 7 is made of PVC, and one end of it is connected to the lower left side wall of the inlet tank 6 via a flange. The sealing gasket is made of nitrile rubber to ensure a tight seal and prevent wastewater leakage. (See attached...) Figure 3 As shown.

[0020] A pump 9, model QBY-25 pneumatic diaphragm pump, is fixedly installed on the top of the treatment box 1. Several aeration pipes 10 are connected to the output end of the pump 9; one end of each pipe penetrates the top wall of the treatment box 1 and extends to the middle of the top of two adjacent filter bags 3, allowing for uniform air release. (See attached...) Figure 1 Appendix Figure 3 As shown.

[0021] The bottom of the treatment box 1 is welded with a slag discharge hopper 12, which has a conical structure and is used to collect small amounts of solid residue generated by the electrode reaction. The top of the treatment box 1 is fixed with a cover plate 11 by bolts, which facilitates opening for internal equipment maintenance and residue cleaning. (See attached...) Figure 1 As shown.

[0022] The specific working principle is as follows: the recalcitrant organic wastewater to be treated, such as dyeing and printing wastewater, enters the inlet tank 6 through the inlet pipe 7. The inlet tank 6 plays a role in buffering and equalizing the flow of wastewater, so as to avoid the impact of wastewater flow fluctuation on the treatment effect.

[0023] Wastewater in the inlet tank 6 is evenly distributed to the top area of ​​the partition plate 2 through the diversion port 8, and then flows quickly into the interior of the filter bag 3 through the water inlet at the top of the filter bag 3. The filter bag 3 first performs preliminary filtration of the wastewater, intercepting large particulate impurities such as suspended solids in the wastewater.

[0024] The power supply system of electrode cage 4 is activated, forming an electric field between the anode and cathode. The three-dimensional electrode structure generates highly oxidizing OH radicals, which directly destroy the chemical structure of recalcitrant organic matter in the wastewater, such as azo dyes and benzene compounds, achieving deep mineralization of pollutants. Simultaneously, pump 9 is activated, continuously aerating the top area of ​​filter bag 3 through aeration pipe 10. As air bubbles rise, they agitate the wastewater, improving the mass transfer efficiency between the wastewater and the electrode surface and accelerating the reaction rate. (See attached diagram.) Figure 3 As shown.

[0025] The foam generated during the wastewater treatment process floats to the surface of the wastewater at the bottom of the baffle 2, and enters the foam discharge hopper 5 under the push of the water flow and is discharged from the equipment; a small amount of solid residue generated by the electrocatalytic reaction is partially intercepted by the filter bag 3 and partially settles to the bottom of the treatment tank 1, and is periodically discharged through the slag discharge hopper 12, or thoroughly cleaned by opening the cover plate 11.

[0026] The levels of COD, color, and toxic and harmful substances in the wastewater are significantly reduced, meeting environmental emission standards. The wastewater is then discharged from the drain outlet at the bottom of the treatment tank 1, which can be located on one side of the slag discharge hopper 12, or it can enter the subsequent reuse treatment system.

[0027] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A three-dimensional electrode electrocatalytic oxidation wastewater treatment device, comprising a treatment tank (1), characterized in that: The processing box (1) is equipped with a processing component; The processing assembly includes a partition (2) disposed at the top of the inner cavity of the processing box (1), and a plurality of filter bags (3) are embedded in the partition (2), and an electrode cage (4) is disposed in the middle of the plurality of filter bags (3). A water inlet tank (6) is provided on one side of the surface of the treatment tank (1), and a diversion port (8) is provided on the top side of the inner wall of the treatment tank (1). The diversion port (8) is located on the top of the partition (2) and is connected to the water inlet tank (6).

2. The three-dimensional electrode electrocatalytic oxidation wastewater treatment equipment according to claim 1, characterized in that: The treatment tank (1) is provided with a foam discharge hopper (5) on the side away from the inlet tank (6). The foam discharge hopper (5) is located at the bottom of the partition (2) and is connected to the treatment tank (1) to discharge the foam on the surface of the wastewater at the bottom of the partition (2).

3. The three-dimensional electrode electrocatalytic oxidation wastewater treatment equipment according to claim 1, characterized in that: One end of the water inlet tank (6) is provided with a water inlet pipe (7), and the water inlet pipe (7) is connected to (6) through a flange.

4. The three-dimensional electrode electrocatalytic oxidation wastewater treatment equipment according to claim 1, characterized in that: A pump (9) is provided on one side of the top of the treatment tank (1), and several aeration pipes (10) are provided on the pump (9).

5. The three-dimensional electrode electrocatalytic oxidation wastewater treatment equipment according to claim 4, characterized in that: One end of each of the aeration pipes (10) passes through the treatment box (1) and extends to the top of two adjacent filter bags (3).

6. The three-dimensional electrode electrocatalytic oxidation wastewater treatment equipment according to claim 1, characterized in that: The bottom of the processing box (1) is provided with a slag discharge hopper (12), and the top of the processing box (1) is provided with a cover plate (11).

7. The three-dimensional electrode electrocatalytic oxidation wastewater treatment equipment according to claim 1, characterized in that: The filter bag (3) and the electrode cage (4) are detachably connected to the partition plate (2), and the top of the filter bag (3) is provided with a water inlet.

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