Sewage treatment equipment

Abstract

The utility model relates to the technical field of sewage treatment, in particular to sewage treatment equipment, which comprises an ABR (anaerobic baffled reactor) area, the ABR area comprises an anaerobic tank, an anoxic tank and an aerobic tank which are sequentially connected, baffle plates are arranged in the anaerobic tank, the anoxic tank and the aerobic tank, the aerobic tank is sequentially connected with a sedimentation tank and a water outlet, and the sedimentation tank and the water outlet are communicated with each other. A sludge return mechanism is arranged at the bottom of the sedimentation tank and is connected with the sludge discharge port, the anaerobic tank and the aerobic tank through a sludge return pipeline. The sewage treatment device is compact in structure, reasonable in arrangement, simple and convenient to operate and safe and stable in work, the stability of effluent quality is improved, and the baffle plates are arranged in the anaerobic tank, the anoxic tank and the aerobic tank, so that the hydraulic retention time is prolonged, the reaction period is prolonged, and the removal effect of suspended solids is improved. Meanwhile, the functions of organic matter degradation, nitrogen removal and phosphorus removal are simultaneously achieved in single equipment, and the integrated equipment has the advantages of being small in occupied area, convenient to integrate and operate and high in automation degree.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to sewage treatment equipment. Background Art

[0002] With the growth of urban populations and the intensification of industrial activities, water pollution is becoming increasingly serious. Traditional wastewater treatment methods, such as the activated sludge process, are limited in removing nutrients such as nitrogen and phosphorus. For high-concentration organic wastewater, a single treatment method is no longer sufficient, making the development of efficient combined treatment technologies particularly important. Utility Model Content

[0003] The purpose of this utility model is to provide a sewage treatment device that can solve the above technical problems.

[0004] The utility model provides a sewage treatment equipment, comprising an ABR area. When the equipment is working, water enters the ABR area from a water inlet. The ABR area comprises an anaerobic tank, an anoxic tank and an aerobic tank connected in sequence. Baffles are provided inside the anaerobic tank, the anoxic tank and the aerobic tank. The aerobic tank is connected to a sedimentation tank and a water outlet in sequence. A sludge return mechanism is provided at the bottom of the sedimentation tank. The sludge return mechanism is connected to a sludge discharge port, the anaerobic tank and the aerobic tank through a sludge return pipe.

[0005] Furthermore, the sedimentation tank includes a primary sedimentation tank and a secondary sedimentation tank, the primary sedimentation tank is connected to the aerobic tank, and the secondary sedimentation tank is connected to the water outlet.

[0006] Furthermore, the anaerobic tank, the anoxic tank and the aerobic tank are all provided with a filling device and a mud discharge device.

[0007] Furthermore, the aerobic tank is provided with an aeration device, which includes a fan and an aeration pipeline, and the fan is connected to the aerobic tank through the aeration pipeline.

[0008] Furthermore, an aeration regulating valve is provided on the aeration pipeline.

[0009] Furthermore, the tops of the anaerobic tank and the anoxic tank are both provided with a biogas outlet for discharging biogas, and the biogas outlet is connected to a biogas collecting device.

[0010] Furthermore, the anaerobic tank and the aerobic tank are provided with bacterial liquid addition ports.

[0011] Furthermore, a sludge return pump is provided on the sludge return pipeline.

[0012] Furthermore, the inner walls of the anaerobic tank, the anoxic tank and the aerobic tank are all provided with water level sensors, and the water level sensors are connected to the monitoring station via a wireless transmission module.

[0013] Furthermore, it also includes an intelligent monitoring unit, which includes a camera installed on-site in the ABR area and a handheld terminal, and the camera is connected to the handheld terminal through a wireless transmission module.

[0014] Beneficial effects:

[0015] By combining the AAO and ABR processes, this new system boasts a compact structure, rational layout, simple operation, safe and stable operation, and improved effluent quality stability. Baffles are incorporated into the anaerobic, anoxic, and aerobic tanks to extend the hydraulic retention time and reaction cycle, improving the removal of suspended solids. Simultaneously, a single device simultaneously achieves organic matter degradation, denitrification, and phosphorus removal. The integrated system boasts a small footprint, ease of integration, convenient operation, and a high degree of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Explanation of the reference numerals: 1-ABR area, 2-anaerobic tank, 3-anoxic tank, 4-biogas outlet, 5-aerobic tank, 6-primary sedimentation tank, 7-bacterial liquid addition port, 8-sludge return pipe, 9-aeration pipeline, 10-secondary sedimentation tank, 11-sludge outlet, 12-water outlet, 13-filling device, 14-water inlet. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0022] Example 1

[0023] A sewage treatment equipment, such as Figure 1 As shown, it includes an ABR area 1. When the equipment is working, water enters the ABR area 1 from the water inlet 14. The ABR area 1 includes an anaerobic tank 2, an anoxic tank 3 and an aerobic tank 5 connected in sequence. The anaerobic tank 2, the anoxic tank 3 and the aerobic tank 5 are all provided with baffles. The aerobic tank 5 is connected to the sedimentation tank and the water outlet 12 in sequence. A sludge return mechanism is provided at the bottom of the sedimentation tank. The sludge return mechanism is connected to the sludge outlet 11 and the anaerobic tank 2 and the aerobic tank 5 through a sludge return pipe 8. A sludge return pump is provided on the sludge return pipe 8.

[0024] The baffles divide the reactor into multiple reaction chambers in series. The sewage flows up and down in the reactor and passes through each reaction chamber in turn. This structure allows the organic matter in the sewage to fully contact with the microorganisms and form different microbial reaction areas.

[0025] The sedimentation tank includes a primary sedimentation tank 6 and a secondary sedimentation tank 10. The primary sedimentation tank 6 is connected to the aerobic tank 5, and the secondary sedimentation tank 10 is connected to the water outlet 12. The anaerobic tank 2, the anoxic tank 3 and the aerobic tank 5 are all provided with a filling device 13 and a sludge discharge device. The aerobic tank 5 is provided with an aeration device, and the aeration device includes a fan and an aeration pipeline 9. The fan is connected to the aerobic tank 5 through the aeration pipeline 9, and the aeration pipeline 9 is provided with an aeration regulating valve. The tops of the anaerobic tank 2 and the anoxic tank 3 are both provided with a biogas outlet 4 for discharging biogas, and the biogas outlet 4 is connected to the biogas collection device. The anaerobic tank 2 and the aerobic tank 5 are provided with a bacterial liquid addition port 7, and the bacterial liquid in the culture machine is added to the anaerobic tank 2 and the aerobic tank 5 through the bacterial liquid addition port 7.

[0026] There are many kinds of anaerobic microorganisms in the anaerobic tank, among which hydrolytic bacteria and acid-producing bacteria play a major role. They can decompose large molecular organic matter in sewage, such as proteins, polysaccharides, fats, etc., into small molecular organic matter, such as amino acids, monosaccharides, fatty acids, etc. This process is similar to cutting "large pieces of food" into "small pieces of food", which improves the biodegradability of organic matter in sewage and creates conditions for further metabolism of subsequent microorganisms. Methanogens will further convert small molecular organic matter into methane (CH4) and carbon dioxide (CO2). In addition, under anaerobic conditions, polyphosphate bacteria will decompose the polyphosphate in the body and release orthophosphate (PO4 3- ) into the wastewater, and using the energy released by decomposing polyphosphates, they absorb organic matter in the wastewater and synthesize it into poly-β-hydroxybutyric acid (PHB), which is then stored in the body. This process lays the foundation for the subsequent excessive uptake of phosphorus by polyphosphate bacteria in an aerobic environment, thereby achieving phosphorus removal from the wastewater.

[0027] In the anoxic tank, microorganisms carry out specific biochemical reactions in an oxygen-deficient environment (low dissolved oxygen concentration, generally below 0.2-0.5 mg / L). Its main function is to carry out denitrification, which is to remove nitrate nitrogen (NO3 - -N) and nitrite nitrogen (NO2 - -N) is reduced to nitrogen (N2) and released into the atmosphere, thereby achieving the removal of nitrogen in sewage.

[0028] In the aerobic tank, aerobic microorganisms (mainly bacteria, protozoa and metazoa, etc.) completely oxidize and decompose the organic matter in the sewage into carbon dioxide (CO2) and water (H2O) under aerobic conditions, thereby removing organic pollutants in the sewage.

[0029] Furthermore, water level sensors are installed on the inner walls of the anaerobic tank 2, the anoxic tank 3, and the aerobic tank 5. These sensors are connected to a monitoring station via a wireless transmission module. An intelligent monitoring unit is also included. This intelligent monitoring unit consists of a camera installed on-site in the ABR area and a handheld terminal. The camera is connected to the handheld terminal via a wireless transmission module.

[0030] The system, comprised of multiple cameras and water level sensors, uses a large model to upload all collected data to the cloud for unified management. The large model integrates and learns the collected sensor and camera data with local climate, temperature, humidity, and other data. With the help of manual annotation, the large model can identify different operating conditions and make autonomous decisions based on them, such as controlling aeration time, sludge return flow intensity, water intake, and the type and location of bacteria added to the incubator.

[0031] Large models can control multiple devices simultaneously. The larger the device cluster, the faster the model learns. Based on all variables, it optimizes the operating conditions of each node, helping devices achieve higher water quality standards and ultimately improving the local ecological environment.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sewage treatment equipment, characterized in that The ABR area includes an anaerobic tank, an anoxic tank and an aerobic tank connected in sequence. Baffles are provided inside the anaerobic tank, the anoxic tank and the aerobic tank. The aerobic tank is connected to the sedimentation tank and the water outlet in sequence. A sludge return mechanism is provided at the bottom of the sedimentation tank. The sludge return mechanism is connected to the sludge outlet and the anaerobic tank and the aerobic tank through a sludge return pipe.

2. The sewage treatment equipment according to claim 1, characterized in that: The sedimentation tank comprises a primary sedimentation tank and a secondary sedimentation tank, the primary sedimentation tank is connected to the aerobic tank, and the secondary sedimentation tank is connected to the water outlet.

3. The sewage treatment equipment according to claim 1, characterized in that: The anaerobic tank, the anoxic tank and the aerobic tank are all provided with a filling device and a mud discharge device.

4. The sewage treatment equipment according to claim 1, characterized in that: The aerobic tank is provided with an aeration device, which includes a fan and an aeration pipeline. The fan is connected to the aerobic tank through the aeration pipeline.

5. The sewage treatment equipment according to claim 4, characterized in that: An aeration regulating valve is provided on the aeration pipeline.

6. The sewage treatment equipment according to claim 1, characterized in that: The tops of the anaerobic tank and the anoxic tank are both provided with a biogas outlet for discharging biogas, and the biogas outlet is connected to a biogas collecting device.

7. The sewage treatment equipment according to claim 1, characterized in that: The anaerobic tank and the aerobic tank are provided with bacterial liquid adding ports.

8. The sewage treatment equipment according to claim 1, characterized in that: The sludge return pipe is provided with a sludge return pump.

9. The sewage treatment equipment according to claim 1, characterized in that: The inner walls of the anaerobic tank, the anoxic tank and the aerobic tank are all provided with water level sensors, and the water level sensors are connected to the monitoring station via a wireless transmission module.

10. The sewage treatment equipment according to claim 1, characterized in that: It also includes an intelligent monitoring unit, which includes a camera installed on-site in the ABR area and a handheld terminal. The camera is connected to the handheld terminal through a wireless transmission module.

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