A high-concentration wastewater treatment system

Abstract

This utility model discloses a high-concentration wastewater treatment system, belonging to the field of wastewater treatment. It includes a storage tank, an A-tank, an O-tank, and an anaerobic tower. The A-tank and O-tank are connected by a pipeline. The storage tank has a wastewater inlet, and its wastewater outlet is connected to the A-tank and the anaerobic tower respectively through separately controlled valves. The A-tank and O-tank are connected by an AO return pipeline, which is equipped with a return pump. The wastewater treatment end of the anaerobic tower is connected to the wastewater treatment front end of the anaerobic tower through an anaerobic return pipeline, which is also equipped with a return pump. This utility model, combined with conventional wastewater treatment equipment in existing production processes and supplemented by minor structural improvements, can directly achieve automatic wastewater treatment, reducing unnecessary treatment steps and lowering treatment costs.

Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment, and more specifically, relates to a high-concentration wastewater treatment system. Background Technology

[0002] In the current wastewater treatment field, commonly used wastewater treatment systems generally suffer from cumbersome treatment processes. The sequential connection of multiple treatment stages makes the wastewater treatment process time-consuming, which not only reduces treatment efficiency but also increases the input of manpower and material resources, resulting in high treatment costs and seriously restricting the efficiency and economy of wastewater treatment.

[0003] For example, Chinese patent application number CN202011370484.0, published on February 26, 2021, discloses an industrial wastewater treatment system. This system comprises the following components: a collection tank, an equalization tank, a reaction sedimentation tank, an aerobic tank, an anaerobic tank, a secondary sedimentation tank, a filtration device, a detection tank, a disinfection tank, a sludge thickening tank, a sludge dewatering machine, and a sludge drying machine. This solution combines physical, chemical, and biological treatment methods to treat industrial wastewater. While it achieves good treatment results, it suffers from the aforementioned problems of long treatment times, cumbersome procedures, and low efficiency.

[0004] Chinese patent application number CN201810374682.0, published on July 20, 2018, discloses an industrial wastewater treatment system. The system uses a wastewater pump to send industrial wastewater into a preheater, which preheats the wastewater with steam output from a vapor-liquid separator and a crystallizer. The wastewater then evaporates in an evaporator to form a vapor-liquid mixture, which is then separated in the vapor-liquid separator. After further evaporation in the crystallizer's evaporation zone until supersaturation, the precipitated crystals enter a cyclone concentrator for cyclone concentration and finally are centrifuged for further separation, thus completing the wastewater treatment process. While this solution involves a few steps, its evaporation method results in a longer treatment time per unit of wastewater, higher energy consumption, and higher treatment costs. Summary of the Invention

[0005] 1. The problem to be solved To address the problems of cumbersome processes, long processing times, and high costs associated with existing industrial wastewater treatment systems, this invention provides a high-concentration wastewater treatment system. By combining conventional wastewater treatment equipment in existing production processes with minor structural improvements, it can directly achieve automatic wastewater treatment, reducing unnecessary processing steps and lowering treatment costs.

[0006] 2. Technical Solution To solve the above problems, the present invention adopts the following technical solution.

[0007] A high-concentration wastewater treatment system includes a storage tank, an A-tank, an O-tank, and an anaerobic tower. The A-tank and O-tank are connected by a pipeline. The storage tank has a wastewater inlet, and its wastewater outlet is connected to the A-tank and the anaerobic tower respectively through separately controlled valves. The A-tank and O-tank are connected by an AO reflux pipeline, which is equipped with a reflux pump. The wastewater treatment end of the anaerobic tower is connected to the wastewater treatment front end of the anaerobic tower through an anaerobic reflux pipeline, which is also equipped with a reflux pump.

[0008] As a further improvement to the technical solution, the AO return pipe is equipped with a flow regulating valve.

[0009] As a further improvement to the technical solution, the anaerobic reflux pipeline is equipped with a flow regulating valve.

[0010] As a further improvement to the technical solution, the wastewater inlet of the water storage tank is connected to a wastewater collection pool via a pipeline, and the pipeline is equipped with valves and a water pump.

[0011] As a further improvement to the technical solution, an overflow port is provided at the top of the water storage tank, and the overflow port is connected to the wastewater collection tank through an overflow pipe, and a valve is installed on the overflow pipe.

[0012] As a further improvement to the technical solution, the water storage tank is equipped with a level gauge, which is electrically connected to a valve on the overflow pipe.

[0013] As a further improvement to the technical solution, a filter is installed at the wastewater outlet of the water storage tank.

[0014] As a further improvement to the technical solution, the wastewater outlet of the water storage tank is equipped with a metering pump and a flow meter.

[0015] As a further improvement to the technical solution, the anaerobic tower is equipped with a thermometer.

[0016] As a further improvement to the technical solution, the anaerobic tower is equipped with a pH meter.

[0017] 3. Beneficial effects Compared with the prior art, the beneficial effects of this utility model are as follows: (1) This utility model provides a high-concentration wastewater treatment system, which reduces unavoidable treatment steps and directly discharges wastewater into the AO tank or anaerobic tower for treatment, simplifying the wastewater treatment steps and reducing treatment time and cost. By setting up a return pipe between the A tank and the O tank and between the wastewater treatment end of the anaerobic tower and the wastewater treatment front end of the anaerobic tower, the residence time of wastewater in the AO tank or anaerobic tower can be increased, thus simplifying the treatment steps while ensuring the treatment effect. (2) The present invention provides a high-concentration wastewater treatment system, which can adjust the flow rate of the return wastewater by installing a flow regulating valve on the return pipe, thereby balancing the wastewater treatment time and treatment effect to achieve the best ratio; (3) The present invention provides a high-concentration wastewater treatment system. An overflow pipe is connected between the water storage tank and the wastewater collection pool and the valve controls the switch. When the level gauge detects that the water volume in the water storage tank exceeds the set standard, the valve can be opened to allow the wastewater in the water storage tank to flow back to the wastewater collection pool and prevent the wastewater from overflowing from the water storage tank. (4) The present invention provides a high-concentration wastewater treatment system. The wastewater outlet of the storage tank is equipped with a filter, which can pre-filter the wastewater before sending it into the AO tank or anaerobic tower, thereby improving the subsequent treatment effect of the wastewater. (5) The present invention provides a high-concentration wastewater treatment system. The wastewater outlet end of the storage tank is equipped with a metering pump and a flow meter, which can effectively control the wastewater flow rate and accurately determine the wastewater treatment volume, thus providing a basis for the subsequent optimal treatment process. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the high-concentration wastewater treatment system of this utility model; In the diagram: 1. Water storage tank; 2. A tank; 3. O tank; 4. Anaerobic tower; 5. AO return pipe; 6. Anaerobic return pipe; 7. Wastewater collection tank; 8. Overflow pipe; 9. Level gauge; 10. Filter; 11. Metering pump; 12. Flow meter; 13. Thermometer; 14. pH meter. Detailed Implementation

[0019] Exemplary embodiments of the present invention are described in detail below. While these exemplary embodiments have been described in sufficient detail to enable those skilled in the art to practice the present invention, it should be understood that other embodiments may be implemented and various changes may be made to the present invention without departing from its spirit and scope. The more detailed description of embodiments of the present invention below is not intended to limit the scope of the claimed invention, but is merely illustrative and does not limit the description of the features and characteristics of the invention, in order to provide the best mode for carrying out the invention and sufficient to enable those skilled in the art to practice it. Therefore, the scope of the present invention is defined only by the appended claims.

[0020] Example 1 like Figure 1As shown, a high-concentration wastewater treatment system includes a storage tank 1, an A-tank 2, an O-tank 3, and an anaerobic tower 4. The A-tank 2 and O-tank 3 are connected by pipelines. The storage tank 1 has a wastewater inlet, and its wastewater outlets are connected to the A-tank 2 and the anaerobic tower 4 via individually controlled valves. Depending on the actual situation, the system can switch between a biochemical AO process and a UASB anaerobic process for treatment. If the UASB process is selected, the high-concentration wastewater flows into the anaerobic tower 4 through pipelines; if the biochemical AO process is selected, the high-concentration wastewater flows into the A-tank 2 through pipelines, is treated in the A-tank 2, and then flows into the O-tank 3. The biochemical AO process can effectively treat high-concentration COD alkaline wastewater, ensuring that the final COD concentration meets discharge standards, while simultaneously enhancing the denitrification capacity of the AO tanks, achieving comprehensive purification of the wastewater.

[0021] Tank A2 and Tank O3 are connected by an AO reflux pipe 5, which is equipped with a reflux pump. The wastewater treatment end of anaerobic tower 4 is connected to the wastewater treatment end of anaerobic tower 4 through an anaerobic reflux pipe 6, which is also equipped with a reflux pump.

[0022] This treatment system reduces unavoidable processing steps by directly discharging wastewater into the AO tank or anaerobic tower 4 for treatment, simplifying the wastewater treatment process and reducing treatment time and costs. Furthermore, by installing reflux pipes between the A tank 2 and the O tank 3, and between the wastewater treatment end and the wastewater treatment beginning of the anaerobic tower 4, the residence time of wastewater in the AO tank or anaerobic tower 4 can be increased, ensuring treatment effectiveness while simplifying the process.

[0023] In this embodiment, a flow regulating valve is installed on the return pipe, which can regulate the flow rate of the return wastewater, balance the wastewater treatment time and treatment effect, and achieve the optimal ratio.

[0024] The wastewater inlet of the storage tank 1 is connected to the wastewater collection tank 7 via a pipeline. The pipeline is equipped with a valve and a water pump, continuously supplying wastewater to the storage tank 1 through the wastewater collection tank 7. Simultaneously, an overflow port is located at the top of the storage tank 1, connected to the wastewater collection tank 7 via an overflow pipe 8, which is equipped with a valve. A level gauge 9 is installed inside the storage tank 1, electrically connected to the valve on the overflow pipe 8. When the level gauge 9 detects that the water level in the storage tank 1 exceeds a set standard, it controls the valve to open, allowing the wastewater in the storage tank 1 to flow back to the wastewater collection tank 7, preventing wastewater from overflowing from the storage tank 1.

[0025] The wastewater outlet of the storage tank 1 is equipped with a filter 10, a metering pump 11, and a flow meter 12 in sequence. The filter 10 can pre-filter the wastewater before it is sent to the AO tank or anaerobic tower, improving the subsequent treatment effect of the wastewater. The metering pump 11 and the flow meter 12 can effectively detect and control the wastewater flow rate, accurately determine the wastewater treatment volume, and provide a basis for the optimal subsequent treatment process.

[0026] In addition, the anaerobic tower 4 is also equipped with a thermometer 13 and a pH meter 14, which can detect the temperature and pH inside the anaerobic tower 4, so that the control system can adjust the temperature and pH of the anaerobic tower 4 to the optimal treatment range and improve the wastewater treatment effect.

[0027] In summary, the high-concentration wastewater treatment system of this embodiment, combined with conventional wastewater treatment equipment in existing production processes and supplemented by minor structural improvements, can directly achieve automatic wastewater treatment, reducing unnecessary treatment procedures and lowering treatment costs.

Claims

1. A high-concentration wastewater treatment system, characterized in that: The system includes a water storage tank (1), an A pool (2), an O pool (3), and an anaerobic tower (4). The A pool (2) and the O pool (3) are connected by a pipeline. The water storage tank (1) has a wastewater inlet, and its wastewater outlet is connected to the A pool (2) and the anaerobic tower (4) through separately controlled valves. The A pool (2) and the O pool (3) are connected by an AO return pipe (5), and the AO return pipe (5) is equipped with a return pump. The wastewater treatment end of the anaerobic tower (4) is connected to the wastewater treatment front end of the anaerobic tower (4) through an anaerobic return pipe (6), and the anaerobic return pipe (6) is equipped with a return pump.

2. The high-concentration wastewater treatment system according to claim 1, characterized in that: The AO return pipe (5) is equipped with a flow regulating valve.

3. The high-concentration wastewater treatment system according to claim 1, characterized in that: The anaerobic reflux pipe (6) is equipped with a flow regulating valve.

4. The high-concentration wastewater treatment system according to claim 1, characterized in that: The wastewater inlet of the water storage tank (1) is connected to the wastewater collection pool (7) through a pipeline, and the pipeline is equipped with valves and water pumps.

5. A high-concentration wastewater treatment system according to claim 2, characterized in that: The water storage tank (1) has an overflow port at the top, and the overflow port is connected to the wastewater collection tank (7) through an overflow pipe (8). The overflow pipe (8) is equipped with a valve.

6. A high-concentration wastewater treatment system according to claim 5, characterized in that: The water storage tank (1) is equipped with a level gauge (9), which is electrically connected to a valve on the overflow pipe (8).

7. The high-concentration wastewater treatment system according to claim 1, characterized in that: The wastewater outlet of the water storage tank (1) is equipped with a filter (10).

8. A high-concentration wastewater treatment system according to claim 7, characterized in that: The wastewater outlet of the water storage tank (1) is equipped with a metering pump (11) and a flow meter (12).

9. A high-concentration wastewater treatment system according to any one of claims 1-8, characterized in that: The anaerobic tower (4) is equipped with a thermometer (13).

10. A high-concentration wastewater treatment system according to any one of claims 1-8, characterized in that: The anaerobic tower (4) is equipped with a pH meter (14).

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