Electrocatalytic oxidation equipment for efficiently removing ammonia nitrogen in wastewater

Abstract

The utility model discloses a kind of high-efficiency removal wastewater ammonia nitrogen electrocatalytic oxidation equipment, including electrocatalytic oxidation pool, electrode sheet, microbubble aerator, water body filtration processor, water pump, dosing bucket, dosing pump and activated carbon processing barrel, the electrode sheet is housed in the electrocatalytic oxidation pool, and microbubble aerator is arranged below electrode sheet;The cleaning nozzle is connected with no.9 dosing bucket by dosing pump with conveying hose and works;Filter pipeline is connected with first water body filtration processor and works, and the first water body filtration processor is extended with circulation pipeline and returned to electrocatalytic oxidation pool;The electrocatalytic oxidation pool is extracted to front-end water body by sewage water pump;The outlet of the activated carbon processing barrel is provided with water pump with third water body filtration processor, to extract water to the next process pool. Compared with the system equipment of same function, the utility model realizes the advantages of less equipment, less control point, simple process and simple operation by reasonable design.

Description

Technical Field

[0001] This utility model belongs to the field of electrolytic catalysis technology, and in particular relates to an efficient electrocatalytic oxidation device for removing ammonia nitrogen from wastewater. Background Technology

[0002] Ammonia nitrogen refers to nitrogen in water existing in the form of free ammonia and ammonia ions. Animal organic matter generally has a higher nitrogen content than plant organic matter. Furthermore, nitrogenous organic matter in human and animal excrement is very unstable and easily decomposes into ammonia. Ammonia nitrogen is a nutrient in water bodies, which can lead to eutrophication. It is a major oxygen-consuming pollutant in water bodies and is toxic to fish and some aquatic organisms. With social development, the demand for ammonia nitrogen removal devices using electrolytic catalytic oxidation is increasing.

[0003] In most commercially available electrolytic catalytic oxidation ammonia nitrogen removal devices, the use of additives significantly affects the ammonia nitrogen removal efficiency. Traditional devices often suffer from low ammonia nitrogen removal efficiency due to the low chloride ion content in the liquid. Furthermore, the lack of timely and effective stirring after additive addition further hinders the device's efficiency and increases operating costs. Therefore, this paper proposes an electrolytic catalytic oxidation ammonia nitrogen removal device to address these issues. Utility Model Content

[0004] This invention provides an efficient electrocatalytic oxidation device for removing ammonia nitrogen from wastewater, in order to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A high-efficiency electrocatalytic oxidation device for removing ammonia nitrogen from wastewater includes an electrocatalytic oxidation tank, electrode plates, microbubble aerators, a water filtration processor, a water pump, a dosing tank, a dosing pump, and an activated carbon treatment tank. The electrocatalytic oxidation tank contains electrode plates mounted on a frame, with microbubble aerators positioned below the electrode plates. The electrode plates are electrically connected to an external electrode plate power supply for coordinated operation. The wall of the electrocatalytic oxidation tank has openings for positioning and installing cleaning nozzles and filter pipes. The cleaning nozzles are connected to the dosing tank (No. 9) via a dosing pump with a delivery hose. The filtration pipeline is connected to the first water filtration processor, which is then connected to a circulation pipeline extending back to the electrocatalytic oxidation tank. The electrocatalytic oxidation tank uses a wastewater pump to extract water from the source. The outlet of the electrocatalytic oxidation tank is connected to the inlet of the activated carbon treatment tank, and an electric control valve, a wastewater pump, and a second water filtration processor are installed on the pipeline between the outlet and the inlet. The outlet of the activated carbon treatment tank is equipped with a pump with a third water filtration processor to extract water to the next treatment tank.

[0006] Preferably, the electrocatalytic oxidation tank is equipped with auxiliary detectors, namely a pH meter, a conductivity meter, and a level transmitter.

[0007] Preferably, the electrode power supply is equipped with an electric water chiller for auxiliary operation.

[0008] Preferably, the microbubble aerator in the electrocatalytic oxidation tank is connected to an aerator outside the electrocatalytic oxidation tank for coordinated operation.

[0009] Preferably, an aerator and a level transmitter are respectively installed at the bottom and top of the activated carbon treatment tank.

[0010] Preferably, the activated carbon treatment tank has an exhaust window at the top, and an exhaust pipe with an exhaust fan is provided above the exhaust window.

[0011] Preferably, the electrocatalytic oxidation tank is also equipped with a No. 6 dosing tank and a No. 7 dosing tank, which work in conjunction with the electrocatalytic oxidation tank via a dosing pump with a delivery hose.

[0012] Compared with existing technologies, the advantages of this utility model are: Compared with similar systems, this invention achieves the advantages of fewer equipment, fewer control points, simpler process, and simpler operation through reasonable design. The entire oxidation section only requires one electrocatalytic oxidation reactor consisting of electrode plates, electric water chiller, and electrode power supply, resulting in lower operating costs. Furthermore, the entire treatment process does not require the addition of iron salts, acid or alkali adjustment, or solid particulate catalysts, which increases the lifespan of this invention to a certain extent. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model. 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] like Figure 1 As shown, this utility model is a high-efficiency electrocatalytic oxidation device for removing ammonia nitrogen from wastewater. The main components include an electrocatalytic oxidation tank (1), electrode plates (2), microbubble aerator (3), water filtration processor, water pump, dosing tank, dosing pump (13), and activated carbon treatment tank (15). Its general assembly structure is as follows: The electrocatalytic oxidation tank (1) is equipped with electrode plates (2), and a microbubble aerator (3) is arranged below the electrode plates (2); the electrode plates (2) are electrically connected to the electrode plate power supply (8) outside the electrocatalytic oxidation tank (1) for operation; the wall of the electrocatalytic oxidation tank (1) has openings for positioning and installation of cleaning nozzles (7) and filter pipes (17); the cleaning nozzles (7) are connected to the dosing tank (12) of No. 9 through a dosing pump (13) with a delivery hose; the filter pipes (17) are connected to the first water filtration processor (9), and the first water filtration processor (9) is connected to the first water filtration processor (9). Then a circulation pipeline (21) is led out and extended back to the electrocatalytic oxidation tank (1); the electrocatalytic oxidation tank (1) uses a sewage pump (10) to extract the front-end water; the outlet of the electrocatalytic oxidation tank (1) is connected to the inlet of the activated carbon treatment tank (15), and an electric control valve (18), a sewage pump (10) and a second water filter processor (19) are installed on the pipeline between the outlet and the inlet; the outlet of the activated carbon treatment tank (15) is equipped with an activated carbon treatment tank pump (23) with a third water filter processor (20) to extract the water to the treatment tank of the next process.

[0016] It can be further explained that the electrocatalytic oxidation tank (1) in this utility model is equipped with a pH meter (4), a conductivity meter (5) and a level transmitter (6), while the activated carbon treatment tank (15) is equipped with a level transmitter (6). These three devices can work with the intelligent control panel to perform automated control. For example, if the pH meter (4) detects that the pH value parameter does not meet the expected set value, it sends an electrical signal to the dosing pump (13) of the corresponding dosing tank to start its operation and add an appropriate amount of reagent, such as the dosing tank (14) and the dosing tank (16) to ensure that the parameter is within the range. The conductivity meter (5) is used to detect the working efficiency and condition of the electrode plate (2), while the level transmitter (6) is used to detect whether the water level of the water body input by the water pump has reached the specified height line, or whether there is any abnormality or overflow.

[0017] Regarding the electrode plate (2), it can be further explained that it is equipped with an electrode power supply (8) with an electric water cooler (24) for auxiliary operation, which is connected to the electrode power supply (8) through a power supply line. The electrode power supply (8) located below the electrode plate (2) is connected to the aerator (11) outside the electrocatalytic oxidation tank (1) to work in coordination. Its placement below the electrode plate (2) allows the catalytic reaction to proceed smoothly and efficiently.

[0018] It should be noted that this utility model has two steps to treat wastewater. The wastewater output from the electrocatalytic oxidation tank (1) will be pumped into the activated carbon treatment tank (15). The electrocatalytic oxidation tank (1) will be circulated and filtered during the treatment process, specifically in the filter pipe (17), the first water filter processor (9) and the circulation pipe (21). The purpose of this design is to allow the water in the electrocatalytic oxidation tank (1) to be circulated and filtered by the first water filter processor (9). While filtering some impurities, the water can also be allowed to flow, avoiding the water from being stagnant and unable to achieve the most efficient disinfection. After the electrocatalytic oxidation tank (1) is treated, the output water will be pumped and filtered again by the wastewater pump (10) and the second water filter processor (19) into the activated carbon treatment tank (15). After being treated in the activated carbon treatment tank (15), the water will be transported to the next treatment tank through the third water filter processor (20) and the activated carbon treatment tank pump (23).

[0019] Regarding the activated carbon treatment tank (15), it can be further explained that when water is filtered and adsorbed in the activated carbon treatment tank (15), an odor will be generated. In order to avoid the volatilization of odor and the emission of waste gas, this utility model provides an exhaust pipe (22) with an exhaust fan at the exhaust window of the activated carbon treatment tank (15). While adsorbing, the exhaust pipe (22) is also equipped with an air treatment device at the end so that the generated gas is treated before being discharged, which is in line with the purpose of environmental protection.

[0020] The general workflow of this utility model is as follows: The intelligent control panel transports the biochemically treated wastewater from the biochemical tank conveying equipment to the electrocatalytic oxidation tank (1) according to the settings of the pre-entered program, so as to carry out electrocatalytic oxidation treatment; 2. The intelligent control panel uses the pH detector (4) in the electrocatalytic oxidation tank (1) to detect the pH value of the pumped water. If the pH value does not meet the standard, the intelligent control panel sends an electrical signal to the dosing pump (13) to add chemicals. Specifically, it draws a quantitative amount from the dosing tank (14) according to the actual situation. At the same time, the aerator (11) is turned on to make the added chemicals mix better and faster with the added sewage. After the pH value reaches the preset value, the intelligent control panel uses the conductivity detector (5) to detect the conductivity value of the water. If the conductivity value does not meet the standard, the intelligent control panel uses the dosing pump (13) on the dosing tank (16) to add the chemicals in the dosing tank (16) to the water. 3. Once the pH value and conductivity value meet the standards, the electrode plate (2) is turned on. The intelligent control panel automatically adjusts the current and voltage input of the electrode plate power supply (8). When the electrocatalytic oxidation reaches the preset time, the intelligent control panel performs COD and ammonia nitrogen compliance tests on the water body. Only after the compliance is met will the solenoid valve 18 be opened, and then the sewage pump (10) will be turned on to transport the water body to the activated carbon treatment tank (15). The activated carbon treatment tank (15) will discharge the qualified water body after treatment. 4. Finally, the electrode plate (2) is cleaned. The intelligent control panel will clean the electrode plate (2) regularly. Specifically, the cleaning agent is drawn from the dosing pump (13) on the dosing tank (12) and sprayed onto the electrode plate (2) through the cleaning nozzle (7).

[0021] This invention employs advanced electrode materials and reaction conditions to achieve efficient reduction of ammonia nitrogen in leachate, thereby effectively reducing the ammonia nitrogen content in the leachate and efficiently removing ammonia nitrogen-containing wastewater. Furthermore, this invention also has the ability to degrade organic matter; during the electrocatalytic process, organic pollutants are effectively degraded and removed. This invention can be used in conjunction with an intelligent control panel equipped with an intelligent control system to electrically control and automatically regulate various electronic components, enabling real-time monitoring and processing of various parameters. It also automatically adjusts the working state and reaction conditions of the electrode sheet (2) according to changes in water quality, making the processing process more stable and reliable, reducing the complexity and error rate of manual operation. Only simple acid-base adjustment is required before processing, and no additional chemical agents need to be added during the process.

[0022] This invention reduces processing and operating costs by optimizing electrode materials and reaction conditions, achieving the dual goals of environmental protection and energy conservation.

[0023] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "a solution," "some solutions," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that solution or example is included in at least one solution or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same solution or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more solutions or examples.

Claims

1. A high-efficiency electrocatalytic oxidation device for removing ammonia nitrogen from wastewater, comprising an electrocatalytic oxidation tank (1), electrode plates (2), a microbubble aerator (3), a water filtration processor, a water pump, a dosing tank, a dosing pump (13), and an activated carbon treatment tank (15), characterized in that, The electrocatalytic oxidation tank (1) is equipped with an electrode plate (2), and a microbubble aerator (3) is arranged below the electrode plate (2). The electrode sheet (2) is electrically connected to the electrode power supply (8) outside the electrocatalytic oxidation tank (1) to work together; The wall of the electrocatalytic oxidation tank (1) is provided with holes for positioning and installation of cleaning nozzles (7) and filter pipes (17); The cleaning nozzle (7) is connected to the dosing tank (12) of No. 9 via a dosing pump (13) with a delivery hose. The filter pipeline (17) is connected to the first water filter processor (9) for operation, and the first water filter processor (9) has a circulation pipeline (21) extending back to the electrocatalytic oxidation tank (1); The electrocatalytic oxidation tank (1) uses a sewage pump (10) to extract water from the front end; The outlet of the electrocatalytic oxidation tank (1) is connected to the inlet of the activated carbon treatment tank (15), and an electric control valve (18), a sewage pump (10), and a second water filter processor (19) are installed on the pipeline between the outlet and the inlet. The outlet of the activated carbon treatment tank (15) is equipped with an activated carbon treatment tank pump (23) with a third water body filter processor (20) to pump water into the treatment tank of the next process.

2. The high-efficiency electrocatalytic oxidation equipment for removing ammonia nitrogen from wastewater according to claim 1, characterized in that, The electrocatalytic oxidation tank (1) is equipped with auxiliary detectors, namely a pH detector (4), a conductivity detector (5), and a level transmitter (6).

3. The high-efficiency electrocatalytic oxidation equipment for removing ammonia nitrogen from wastewater according to claim 1, characterized in that, The plate power supply (8) is equipped with an electric water chiller (24) for auxiliary operation.

4. The high-efficiency electrocatalytic oxidation equipment for removing ammonia nitrogen from wastewater according to claim 1, characterized in that, The microbubble aerator (3) in the electrocatalytic oxidation tank (1) is connected to the aerator (11) outside the electrocatalytic oxidation tank (1) to work together.

5. The high-efficiency electrocatalytic oxidation equipment for removing ammonia nitrogen from wastewater according to claim 1, characterized in that, An aerator (11) and a level transmitter (6) are respectively installed at the bottom and top of the activated carbon treatment tank (15).

6. The high-efficiency electrocatalytic oxidation equipment for removing ammonia nitrogen from wastewater according to claim 1, characterized in that, The activated carbon treatment tank (15) has an exhaust window at the top, and an exhaust pipe (22) with an exhaust fan is provided above the exhaust window.

7. The high-efficiency electrocatalytic oxidation equipment for removing ammonia nitrogen from wastewater according to claim 1, characterized in that, The electrocatalytic oxidation tank (1) is also equipped with a No. 6 dosing tank (14) and a No. 7 dosing tank (16), which work in conjunction with the electrocatalytic oxidation tank (1) through a dosing pump (13) with a delivery hose.

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