An electron beam irradiation treatment integrated wastewater treatment system and control method

Abstract

The application belongs to the technical field of wastewater treatment, and discloses an electron beam irradiation treatment integrated wastewater treatment system and a control method. The system comprises a self-shielding irradiation cabin and at least one other wastewater treatment cabin. Each wastewater treatment cabin is provided with a standardized water outlet interface and a water inlet interface, and is connected with other wastewater treatment cabins through pipelines to form a multi-stage wastewater treatment system. The application integrates various pieces of equipment and pipelines related to sewage treatment into a transportable shelter, and connects specified wastewater treatment cabins between various pieces according to requirements through standardized interfaces, so that the sewage treatment pilot plant is easy to assemble and transport, and can be reused.

Description

Technical Field

[0001] This invention belongs to the field of wastewater treatment technology, and particularly relates to an integrated wastewater treatment system and control method for electron beam irradiation. Background Technology

[0002] The statements in this section are merely background information related to the present invention and do not necessarily constitute prior art.

[0003] Before applying a wastewater treatment solution to actual wastewater treatment, small-scale and pilot-scale experiments must be conducted to ensure the effectiveness of the final treatment plan. Small-scale experiments typically refer to tests conducted in a laboratory or on small-scale equipment to verify the feasibility and effectiveness of different treatment methods. Pilot-scale experiments refer to tests conducted on medium-sized equipment or in an actual wastewater treatment plant to verify whether the treatment plan from the small-scale experiments is suitable for the actual operating environment.

[0004] Typical wastewater treatment pilot plants are designed and manufactured for only one pilot-scale task. However, due to differences in wastewater quality and type, wastewater treatment processes vary, making it difficult to reuse existing wastewater treatment pilot plants. Furthermore, the numerous pieces of equipment and complex piping connections make the pilot plants difficult to transport, limiting their space. The short pilot-scale testing cycle also leads to the easy abandonment of the pilot plants, making it difficult to justify the human and material resources invested in their design and construction. Summary of the Invention

[0005] To overcome the shortcomings of the prior art, the present invention provides an integrated wastewater treatment system and control method for electron beam irradiation treatment. The system integrates the relevant equipment and pipelines of each stage of wastewater treatment into a transportable container. Through standardized interfaces, the various stages can be connected to designated wastewater treatment compartments as needed, making the wastewater treatment pilot plant easy to assemble, easy to transport, and reusable.

[0006] To achieve the above objectives, a first aspect of the present invention provides an integrated wastewater treatment system for electron beam irradiation, characterized in that it includes a self-shielded irradiation chamber and at least one other wastewater treatment chamber, each wastewater treatment chamber being provided with a standardized outlet and inlet interface for connection with other wastewater treatment chambers via pipelines to form a multi-stage wastewater treatment system.

[0007] In some embodiments, each wastewater treatment compartment is equipped with a compartment control system, as well as wastewater transfer control elements and monitoring elements connected to the compartment control system; the system also includes a central controller capable of establishing connections with the compartment control systems of each compartment in the multi-stage wastewater treatment system.

[0008] In some embodiments, the system further includes a supervisory control system and / or a voice broadcasting system connected to the central controller.

[0009] In some embodiments, the system also includes a video surveillance system, with each wastewater treatment chamber equipped with a camera for monitoring critical equipment.

[0010] In some embodiments, the self-shielded irradiation chamber includes a water storage tank, a receiving water tank, an accelerator, and an irradiated water box; the water inlet of the self-shielded irradiation chamber is connected to the first water inlet of the water storage tank via a water inlet pipe, the first water outlet of the water storage tank is connected to the water inlet of the irradiated water box via a first pipe, the water outlet of the irradiated water box is connected to the water inlet of the receiving water tank via a second pipe, the first water outlet of the receiving water tank is connected to the water outlet of the self-shielded irradiation chamber; the second water outlet of the receiving water tank is connected to the second water inlet of the water storage tank via a self-circulation pipe.

[0011] In some embodiments, the second pipeline is further provided with a branch pipeline connected to the third inlet of the water storage tank, and a directional control valve is provided at the branch to control the flow of wastewater through the irradiated water box to the water storage tank or the receiving water tank.

[0012] In some embodiments, the irradiated water box is further provided with another outlet, which is connected to the inlet of the wastewater recycling tank; the outlet of the wastewater recycling tank is connected to the third inlet of the water storage tank via a third channel.

[0013] In some embodiments, the accelerator and the irradiated water box are provided with an irradiation shielding structure; the irradiation shielding structure includes an upper shield and a lower shield, the upper shield surrounding the accelerator; the lower shield has an internal cavity for placing the irradiated water box; and the outer wall thickness of each local area in the shielding structure is different.

[0014] In some embodiments, the other wastewater treatment chambers include a pretreatment chamber, an irradiation posttreatment chamber, a biochemical system chamber, and an oxidation deep treatment chamber.

[0015] A second aspect of the present invention provides a control method for the integrated electron beam irradiation wastewater treatment system, applied to a central controller, the method comprising:

[0016] In response to start-stop control commands, the system controls the start-stop of wastewater treatment systems at all levels, monitors the operating status of wastewater treatment systems at all levels in real time based on monitoring elements, and controls the flow rate and direction of wastewater transmission within the corresponding compartment in response to the adjustment parameters of the wastewater transmission control elements.

[0017] The start-stop control command is automatically generated based on preset start-stop conditions, which include the effluent and influent conditions of each wastewater treatment chamber.

[0018] In one or more of the above technical solutions, by integrating the relevant equipment and pipelines of each stage of sewage treatment into a transportable container, and through standardized interfaces, the designated wastewater treatment compartments can be connected between each stage as needed, enabling a combination of various sewage treatment processes. This is applicable to the treatment of various water qualities and types of sewage, and is easy to transport, greatly increasing the possibility of reuse. Attached Figure Description

[0019] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0020] Figure 1 This is a schematic diagram of the functional architecture of the integrated electron beam irradiation wastewater treatment system in an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the electrical connection between the central control compartment and the wastewater treatment compartment in an embodiment of the present invention;

[0022] Figure 3 This is a top view of the overall internal structure of the self-shielded irradiation chamber in an embodiment of the present invention;

[0023] Figure 4 This is a side view of the internal structure of the self-shielded irradiation chamber in an embodiment of the present invention;

[0024] Figure 5 This is a side view of the water storage tank and the water receiving tank in an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the overall irradiation shielding structure in an embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of the internal structure of the irradiation shielding structure in an embodiment of the present invention;

[0027] Figure 8 This is a schematic diagram illustrating the principle of optimizing the outer wall thickness of the irradiation shielding structure in an embodiment of the present invention;

[0028] Figure 9 This is a schematic diagram of a wastewater treatment system based on a typical wastewater treatment process.

[0029] Figure 10 This is a start-stop control logic diagram for a wastewater treatment system based on a typical wastewater treatment process.

[0030] The components include: 1. Water storage tank; 2. Water collection tank; 3. Irradiation water box; 4. Irradiation shielding structure; 5. First inlet of the water storage tank; 6. First outlet of the water collection tank; 7. First pipeline; 8. Second pipeline; 9. Self-circulating pipeline; 10. Submersible pump; 11. First branch pipeline; 12. Second branch pipeline; 13. Wastewater recovery tank; 14. Third pipeline; 15. Water pump; 16. Accelerator; 4-1. Upper shield; 4-2. Lower shield; 4-3. Shielding door; 4-4. Bottom shield; 4-5. T-stage shielding block; 16-1. Electron gun; 16-2. Accelerator tube; 16-3. Corrugated tube; 16-4. Waveguide window; 16-5. Waveguide; 16-6. Scanning magnet; 16-7. Titanium pump; 16-8. Scanning box. Detailed Implementation

[0031] It should be noted that the following detailed descriptions are exemplary and intended to provide further illustration of the invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0032] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0033] Where there is no conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0034] One or more embodiments of the present invention provide an integrated wastewater treatment system for electron beam irradiation, such as... Figure 1 As shown, the system includes a self-shielded irradiation chamber and at least one other wastewater treatment chamber. Each wastewater treatment chamber is equipped with standardized effluent and influent interfaces for connection to other wastewater treatment chambers via pipelines, forming a multi-stage wastewater treatment system. In addition to the self-shielded irradiation chamber, the other wastewater treatment chambers include a pretreatment chamber, a self-shielded irradiation chamber, a post-irradiation treatment chamber, a biochemical system chamber, and an oxidation deep treatment chamber. Those skilled in the art will understand that more wastewater treatment chambers can be added if there are other requirements for wastewater treatment.

[0035] By setting up the above-mentioned standardized water outlet and water inlet interfaces, it is possible to combine any number and order of the multiple wastewater treatment chambers according to the treatment needs of different types of wastewater, thereby obtaining different wastewater treatment schemes and forming a wastewater treatment implementation plan that is efficient and cost-effective.

[0036] Each of the self-shielded irradiation chambers and each of the wastewater treatment chambers is equipped with wastewater transmission control elements and monitoring elements. Furthermore, each chamber has a separate control system connected to each wastewater transmission control element and monitoring element to control the flow rate, direction, and system startup / shutdown of the wastewater within the chamber. The wastewater transmission control elements include water pumps, fans, valves, etc.; the monitoring elements include flow meters, level sensors, pressure sensors, etc.; and the valves include electric valves, solenoid valves, directional control valves, etc.

[0037] like Figure 2 As shown, the system also includes a central controller. When the self-shielded irradiation chamber is connected to other wastewater treatment chambers via pipelines, the central controller is also connected to the control unit of each other wastewater treatment chamber. The central controller is used to control the overall start-up and shutdown of the designated wastewater treatment chamber assembly, the working sequence and connection of each chamber, the start-up and shutdown control of key components and equipment in a single chamber, monitor the operating status of the designated assembly, monitor the internal operating status of a single chamber, and record the operating parameters of each chamber. In some embodiments, the central controller is located in a central control cabin.

[0038] Therefore, each wastewater treatment compartment can be controlled independently. To achieve integrated system control, the system also includes a central controller, which establishes communication connections with the compartment control systems of each of the multiple wastewater treatment compartments. Through the central controller, the connection and operation sequence of each wastewater treatment compartment can be set, and the start and stop of the pumps and valves in each compartment can be controlled via the compartment control systems of each compartment. The central controller is configured to: control the start and stop of each level of the wastewater treatment system in response to start / stop control commands; monitor the operating status of each level of the wastewater treatment system in real time based on monitoring elements; and control the flow rate and direction of wastewater transmission within the corresponding compartment in response to user-inputted adjustment parameters for the wastewater transmission control elements.

[0039] In some embodiments, the start / stop control command may be generated in response to a user request or automatically generated based on preset start / stop conditions. The preset start / stop conditions include user settings for the effluent and influent conditions of each wastewater treatment chamber, such as the conditions that must be met for the opening of the effluent pump of this stage, the influent valve of the next stage wastewater treatment chamber, and the influent pump, i.e. the conditions for wastewater to be transferred from the current chamber to the next chamber.

[0040] By connecting the central controller to the control systems of each compartment, only the timing control of each compartment's control system needs to be adjusted to obtain a comprehensive control system that can adapt to different compartment combination schemes. Compared to controlling each compartment individually, this approach allows for a comprehensive understanding of the operation of each compartment, and the control of valves, pumps, etc., can be adjusted as needed at any time, which is more accurate and helps to improve the wastewater treatment effect.

[0041] The central controller is also connected to a host monitoring system. The host monitoring system allows users to view the overall system status, remotely operate the equipment, and set system parameters.

[0042] The system also includes a video surveillance system to remotely monitor the equipment in each wastewater treatment compartment. This is achieved by installing an appropriate number of cameras in each compartment to monitor key areas. A video monitoring screen is installed in the central control room, allowing for convenient remote viewing of the equipment operation in each compartment and enabling video retrieval for up to one month. The video surveillance system consists of a hard disk recorder, a monitor television, and cameras in each compartment.

[0043] The system also includes a voice broadcasting system connected to the central controller, used to broadcast notifications about the operating status of equipment in each wastewater treatment compartment, eliminating the need for central control operators to visit each compartment. The voice broadcasting system consists of microphones, amplifiers, and speakers in each compartment.

[0044] The central controller communicates with the control systems of each wastewater treatment compartment via Ethernet, collects the status of the subsystems, remotely controls the components of each subsystem, and organizes the collaborative work of each compartment system according to the process flow; the central control compartment electrical control subsystem can remotely stop the operation of each compartment system in an emergency; the central control compartment electrical control subsystem performs remote video monitoring of each compartment and broadcasts notifications to each compartment through the voice broadcast system.

[0045] The system also includes a power distribution system for supplying power to each wastewater treatment chamber, and is equipped with functions such as over / under voltage protection to cut off the corresponding power supply circuit in case of failure. The power distribution system consists of a multi-output outdoor distribution box, connected to AC 380V three-phase five-wire mains power, supplying power to the central control chamber, pretreatment chamber, irradiation chamber, post-treatment chamber, biochemical chamber, and deep treatment chamber, and enabling independent connection and disconnection control.

[0046] To facilitate transportation and assembly, and to save space, the multiple wastewater treatment chambers all adopt a compact structural design, making the system easy to place in different application scenarios.

[0047] The pretreatment chamber is used to pretreat wastewater with high turbidity. If the wastewater has low turbidity, it may not need to pass through the pretreatment chamber. The pretreatment chamber includes a regulating buffer tank, a high-efficiency sedimentation tank, an intermediate water tank, and a self-cleaning filter connected in sequence. The inlet of the pretreatment chamber is connected to the regulating buffer tank, and the outlet is connected to the self-cleaning filter. The water flow process inside the chamber is as follows: (1) After the incoming water enters the chamber, it is first pressurized by the inlet pump. After pressurization, it is divided into two branches. One branch enters the regulating buffer tank from the top through the flow meter, and the other branch returns to the incoming water at the front end; (2) The water from the bottom of the regulating buffer tank is pressurized by the outlet pump and then divided into two branches. One branch enters the high-efficiency sedimentation tank from the bottom through the flow meter, and the other branch returns to the regulating buffer tank. The regulating buffer tank is equipped with an overflow port, a sludge discharge port, a venting port, and a scum outlet. The generated sludge and wastewater are discharged to the outside of the system through the sludge discharge pump; (3) The water from the high-efficiency sedimentation tank enters the intermediate water tank by gravity. The high-efficiency sedimentation tank is equipped with a sludge discharge port. The sludge is discharged to the outside of the system through the sludge pump; The sedimentation tank is equipped with a backwash pump to pressurize the water in the intermediate water tank and enter the high-efficiency sedimentation tank through the flow meter. The backwash water is discharged to the outside of the system through the sludge pump through the sludge discharge port. (4) After the water from the intermediate water tank is pressurized by the pump, it is divided into two branches. One branch enters the self-cleaning filter through the flow meter, and the other branch returns to the intermediate water tank. (5) The water from the self-cleaning filter with a certain pressure automatically enters the next system unit. When the inlet and outlet pressure of the self-cleaning filter is large, the backwash mode is automatically turned on, and the water in the intermediate water tank is used for backwashing. The wastewater generated is discharged to the outside of the system. (6) The three sets of dosing systems are pressurized by the dosing pump, and enter the high-efficiency sedimentation tank through the flow meter and the pipe mixer set on the pipeline.

[0048] The self-shielded irradiation chamber integrates electrons into a self-shielding system to confine ionizing radiation to the irradiated area. A wastewater transfer device enables continuous and rapid transfer of wastewater and receipt of a specified irradiation dose. As an example, 3MeV / 2kW electrons are used.

[0049] like Figures 3-5 As shown, the self-shielded irradiation chamber includes a water storage tank 1, a receiving water tank 2, an accelerator 16, and an irradiated water box 3. The water inlet of the self-shielded irradiation chamber is connected to the first water inlet 5 of the water storage tank via a water inlet pipe. The first water outlet of the water storage tank 1 is connected to the water inlet of the irradiated water box 3 via a first pipe 7. The water outlet of the irradiated water box 3 is connected to the water inlet of the receiving water tank 2 via a second pipe 8. The first water outlet 6 of the receiving water tank is connected to the water outlet of the self-shielded irradiation chamber for outputting the irradiated water to the next processing stage. The irradiated water box 3 is located within the irradiation range of the accelerator 16.

[0050] The second outlet of the receiving water tank 2 is connected to the second inlet of the storage tank 1 via a self-circulating pipe 9. A submersible pump 10 is connected to the self-circulating pipe 9. The submersible pump 10 is used to transport water from the receiving water tank 2 back to the storage tank 1 through the self-circulating pipe. Then, the water in the storage tank 1 is transported again to the irradiation water box 3 through the first pipe, achieving wastewater self-circulation for multiple irradiations and improving the irradiation treatment effect.

[0051] The second pipeline 8 is also equipped with a second branch pipeline 12, which connects to the third inlet of the water storage tank 1. A directional control valve is provided at the branch point to control the flow of wastewater through the irradiated water box 3 to the water storage tank 1 or the receiving water tank 2. Based on this, when the electron beam exit is not in place or is not stable, the wastewater can be returned to the water storage tank 1.

[0052] An electric valve is installed on the pipeline between the first inlet of the water storage tank 1 and the inlet of the self-shielded irradiation chamber to control the flow rate and volume of sewage entering the water storage tank 1. An electric valve is installed on the pipeline between the outlet of the receiving tank 2 and the outlet of the self-shielded irradiation chamber to control the flow rate and volume of irradiated water discharged from the chamber, ensuring a stable water flow.

[0053] Sampling ports are provided at the inlet of the water storage tank 1 and the outlet of the water receiving tank 2, for detecting the water quality entering the self-shielded irradiation chamber and the water quality after irradiation treatment, in order to determine the control parameters and number of cycles required for irradiation treatment.

[0054] Both the water storage tank 1 and the water receiving tank 2 are equipped with level gauges to monitor the water volume in real time and prevent the water in the tanks from being too little or too much.

[0055] The first pipeline 7 is equipped with an inlet valve to control the flow rate into the irradiated water box 3. A one-way valve is also installed on the first pipeline 7 to prevent backflow. A first branch pipeline 11 is provided on the first pipeline 7, connecting to the second outlet of the water storage tank 1. The second outlet is higher than the first outlet. The first branch pipeline 11 serves as an overflow pipe and is equipped with an overflow valve, thereby allowing excess water in the water storage tank 1 to be fed into the irradiated water box 3 through the overflow pipe and the first pipeline, preventing water overflow.

[0056] The second pipeline 8 is equipped with a water outlet switch valve and a flow meter. The water outlet switch valve is used to control the flow rate of the water after irradiation treatment, and the flow meter is used to monitor the flow rate of the discharged water.

[0057] The irradiated water box 3 is divided into multiple regions along its length, including inlet and outlet regions on both sides, and an irradiation region in the middle. The box body has inlets and outlets corresponding to the inlet and outlet regions, respectively. The upper surface of the box body's bottom plate is stepped, with the middle higher than the sides. The bottom plate portions corresponding to the inlet and outlet regions are lower than the other regions. Through the stepped flow channels, wastewater entering the box can slowly overflow the irradiation region, increasing the uniformity of wastewater irradiation and improving the utilization efficiency of the irradiated electron beam. Wastewater only needs to be irradiated once, which helps in the measurement of the total wastewater volume. The specific structure of the irradiated water box 3 can be found in patent application CN117776326A.

[0058] The irradiation water box 3 with this structural design may allow air bubbles to enter during water delivery, affecting the irradiation effect. Furthermore, the stepped design of the lower surface of the irradiation water box 3 may prevent residual water from flowing out of the outlet. Therefore, the irradiation water box 3 is also equipped with another outlet, connected to the inlet of the wastewater recovery tank 13, for recovering water from the irradiation water box 3.

[0059] In addition, the outlet of the wastewater recycling tank 13 is connected to the third inlet of the water storage tank 1 via a third pipeline 14; the wastewater recycling tank 13 is equipped with a pressure pump 15 for transporting the water in the wastewater recycling tank 13 back to the water storage tank 1.

[0060] To save space and facilitate the movement and transportation of the self-shielded irradiation chamber, the water storage tank 1 is located above the receiving water tank 2, while the irradiation water box 3 and the accelerator 16 are located on one side. The modular design and structure of the separate water tanks enable the circulation and real-time monitoring of the water within the tanks. This allows for both unidirectional flow of wastewater and self-circulation of wastewater to achieve multiple irradiations, increasing the number of irradiations and improving the irradiation treatment effect.

[0061] The accelerator 16 and the irradiated water box 3 are externally equipped with an irradiation shielding structure 4. For example... Figure 6 and Figure 7As shown, the irradiation shielding structure 4 includes an upper shield 4-1 and a lower shield 4-2. The upper shield 4-1 surrounds the accelerator 16; the lower shield 4-2 has an internal cavity for housing the irradiation water box 3. The shielding structure is made of at least one of lead, lead-antimony, and lead alloy. X-rays with a nominal energy of 3 MeV attenuate in lead material by 1 / 10 every 40 cm. Therefore, a dose attenuation of 7 orders of magnitude requires at least 28 cm of lead, lead-antimony, or lead alloy material. If shielding material of this thickness is installed in all X-ray radiation directions, the overall weight will reach 50-160 tons. Considering the shielding layer thickness at various angles from the source to space, some angles will be superimposed due to different channels, and other angles will increase after dividing by the cosine of the included angle. Therefore, the shielding layer thickness at many locations can be reduced accordingly. As a specific implementation method, the analysis space range (e.g., the space within 3 meters of the irradiation area) is set with the shielding structure as the center; the X-ray energy value is set, and the point with the largest irradiation dose is recorded as the radiation source point; the initial thickness of the shielding structure is set, and the irradiation dose rate received on the boundary of the analysis space under the initial thickness is calculated; the thickness of the shielding structure is optimized according to the irradiation dose rate threshold set for the boundary of the analysis space to ensure that the irradiation dose rate threshold is met when the radiation source point reaches the boundary of the analysis space. Figure 8 Middle ①- As an example of a sample point for calculating the radiation dose rate at the boundary of the analysis space, if the radiation dose rate at a certain point on the analysis boundary is greater than a set radiation dose rate threshold, the thickness of the outer wall along the path from the radiation source point to that point can be appropriately reduced. Conversely, if the radiation dose rate at a certain point on the analysis boundary is less than the set radiation dose rate threshold, the thickness of the outer wall along the path from the radiation source point to that point needs to be increased. As an example, the radiation dose is highest at the accelerator tube outlet, followed by the radiation receiving area at the top of the water tank when a large dose of radiation reaches it, where the X-rays are reflected. Therefore, the accelerator tube outlet and the radiation receiving area at the top of the water tank are used as radiation source points. The top, side, and bottom radiation dose rates of the analysis space are set, for example, to 100 μSv / h, 2.5 μSv / h, and 5 mSv / h, respectively. After structural optimization, the overall weight of the shielding body is between 12 and 28 tons, a significant reduction, meeting transportation requirements. To facilitate the fabrication of the shielding structure, in some embodiments, the outer wall thickness of the shielding structure is optimized by partitioning based on the radiation dose rate received at the analysis boundary. The shielding structures corresponding to adjacent samples with similar radiation dose rates are also located in similar areas. Therefore, a cross-overlapping design is adopted. Adjacent shielding structure areas with similar required thicknesses use a single shielding block, which reduces the fabrication difficulty. This not only reduces the overall quality of the self-shielding but also achieves effective shielding, ensuring that the environmental radiation dose outside the self-shielding body meets the requirements of domestic and international radiation protection standards, thus protecting the safety of the environment and personnel.

[0062] As an example, the accelerator 16 includes, from top to bottom, an electron gun 16-1, an accelerating tube 16-2, a bellows tube 16-3, and a scanning box 16-8. The scanning box 16-8 is externally surrounded by a scanning magnet 16-6. A waveguide 16-5 is provided on one side of the accelerating tube 16-2, and a waveguide window 16-4 is provided at the connection between the accelerating tube 16-2 and the waveguide 16-5. The waveguide 16-5 is used to transmit microwave power, which is fed into the accelerating tube 16-2 through the waveguide window 16-4. The bellows tube 16-3 is the component connecting the accelerating tube 16-2 and the scanning box 16-8. It is an important channel for electron beam drift and has the function of solving thermal expansion problems and adjusting accumulated errors during equipment installation. The scanning box 16-8 is used to provide the vacuum space required for the formation of a fan-shaped electron beam. The lower surface of the scanning box 16-8 is provided with a titanium window (50 micrometers thick), which can ensure vacuum while allowing electrons to pass through smoothly. A titanium pump 16-7 is positioned on one side of the scanning box 16-8 to maintain the vacuum inside the accelerating tube 16-2 and the scanning box 16-8. If this accelerator 16 is used, the upper shield 4-1 includes a shield body whose internal cavity shape is adapted to the accelerator 16. For example, waveguide 16-5, connecting pipes, ventilation pipes, etc., can be embedded in the upper shield 4-1 using a pre-embedded pipe method. Furthermore, the initial outer wall thickness meets a certain threshold, and the overall shape of the upper shield 4-1 is similar to that of the accelerator 16. The cross-sectional area is smallest in the height range corresponding to the electron gun 16-1, and increases sequentially in the height ranges corresponding to the accelerating tube 16-2 and the bellows 16-3, and the scanning box 16-8. Shielding blocks are respectively assumed on the upper surface of the shield body at the position corresponding to the electron gun 16-1 of the accelerator 16, and on the side surface of the shield body at the positions corresponding to the waveguide 16-5 and the titanium pump 16-7.

[0063] The lower shield 4-2 includes a side shield and a bottom shield 4-4. The upper surface of the bottom shield 4-4 is provided with a T-shaped shield block 4-5. The T-shaped shield block 4-5 includes multiple flat shield plates of the same shape but different sizes. The multiple shield plates are stacked in descending order of size at the center of the upper surface of the bottom shield 4-4, and the largest shield plate is in contact with the bottom shield 4-4. The uppermost shield plate is used to place the irradiation water box 3.

[0064] To facilitate the placement of the radiation water box, at least one side of the lower shield 4-2 is configured as a shielding door 4-3.

[0065] The aforementioned shielding blocks and plates represent a specific implementation of optimizing the outer wall thickness of the shielding structure. This ensures that, regardless of its location outside the accelerator, the radiation dose rate remains below the target radiation source at a certain distance. This structural optimization makes mobile transportation possible.

[0066] The water flow process in the self-shielded irradiation chamber is as follows: (1) Wastewater flows into the storage tank from outside the container at a set flow rate and flow rate. The storage tank is monitored for liquid level. When the wastewater reaches the set liquid level, the water intake is stopped. (2) The storage tank flows out at a set flow rate or flow rate. The outflow volume and flow rate are controlled by valves or flow meters. A one-way valve is used to prevent backflow of wastewater. (3) By controlling the one-way valve, wastewater samples are collected before irradiation. (4) The water flows into the lower beam device through the pipeline and receives the specified irradiation dose. (5) The irradiated wastewater returns to different wastewater tanks through the return water pipeline and return water flow meter. (6) When the electron beam is not in place or the beam is not stable, the wastewater is returned to the storage tank through the return water pipeline. When the electron beam is stable, the irradiated wastewater is returned to the collection tank. The collection tank is equipped with a sampling port. If the water quality in the collection tank is found to be substandard after sampling, the wastewater in the collection tank is transported back to the storage tank through the self-circulation pipeline. (7) The exhaust valve of the lowering device is activated at the same time as the lowering device starts working. The water flowing out through the exhaust valve and exhaust pipe flows into the water storage tank after reaching a certain liquid level.

[0067] The post-irradiation treatment chamber is used to treat post-irradiation wastewater, remove precipitates generated in the wastewater, and adjust the wastewater quality conditions such as pH to meet the needs of subsequent treatment processes. The post-irradiation treatment chamber includes a coagulation sedimentation tank and a neutralization and conditioning tank. The coagulation sedimentation tank treats the post-irradiation wastewater, and then the neutralization and conditioning tank conditions the wastewater. The water flow process in the chamber is as follows: (1) The water from the irradiation system is first pressurized by the inlet pump and then divided into two branches. One branch enters the inlet conditioning tank from the top through a flow meter, and the other branch returns to the inlet water; (2) The water from the bottom of the water conditioning tank is pressurized by the outlet pump and then divided into two branches. One branch enters the high-density sedimentation tank through a flow meter, and the other branch returns to the inlet conditioning tank; (3) The water from the high-density sedimentation tank enters the neutralization and conditioning tank by gravity. The high-efficiency sedimentation tank is equipped with There is a sludge discharge port. The sludge is pressurized by the sludge pump and divided into two branches. One branch returns to the flocculation zone through the sludge flow meter, and the other branch is discharged out of the system. The four sets of dosing systems are pressurized by the dosing pump and enter the high-density sedimentation tank through the flow meter. (4) The effluent from the neutralization and equalization tank is pressurized by the pump and divided into two branches. One branch enters the biochemical system through the flow meter, and the other branch returns to the neutralization and equalization tank. The two sets of dosing systems are pressurized by the dosing pump and enter the neutralization and equalization tank through the flow meter.

[0068] The biochemical system includes an influent regulating tank, an anoxic tank, an aerobic tank, a secondary sedimentation tank, and a sludge return device; it performs anoxic treatment, aerobic treatment, and secondary sedimentation treatment on different types of wastewater to remove pollutants from the wastewater. The water flow process inside the chamber is as follows: (1) The incoming water is first pressurized by the inlet pump and then divided into two branches. One branch enters the anoxic tank from the top through the flow meter, and the other branch returns to the incoming water at the front end; (2) The anoxic tank overflows into the aerobic tank, the aerobic tank overflows into the secondary sedimentation tank, and the secondary sedimentation tank enters the intermediate water tank by gravity. An internal return pump is set up so that the aerobic tank returns to the anoxic tank through the internal return pump and the flow meter. The sludge in the secondary sedimentation tank is pressurized by the sludge pump and then divided into two branches. One branch enters the anoxic tank from the bottom through the flow meter, and the other branch is discharged outside the system. The three sets of dosing systems are pressurized by the dosing pump and enter the aerobic tank through the flow meter; (3) The water effluent from the intermediate water tank is pressurized by the pump and enters the deep treatment system through the flow meter; (4) A return pump for the deep treatment system is set up so that the water from the deep treatment system is pressurized by the pump and enters the anoxic tank through the flow meter.

[0069] The advanced oxidation treatment chamber includes an ozone catalytic oxidation device and a heterogeneous Feton oxidation device. Both technologies have their own advantages and disadvantages, and offer different treatment effects for different types of wastewater. In practical applications, either ozone technology or heterogeneous Feton technology is selected based on the wastewater conditions to achieve good treatment results and low operating costs. The effluent from the intermediate tank enters the advanced treatment chamber, which has two interfaces: one for the ozone catalytic oxidation device and the other for the heterogeneous Feton device. In actual applications, only one of the ozone catalytic oxidation device or the Feton device is used as the advanced treatment method; they are not used simultaneously.

[0070] Water flow process of ozone catalytic oxidation system: (1) The incoming water is first pressurized by the inlet pump and then divided into two branches. One branch enters the inlet regulating tank from the top through the flow meter, and the other branch returns to the inlet water at the front end; (2) The effluent from the inlet regulating tank is pressurized by the effluent pump and then divided into two branches. One branch enters the security filter through the flow meter, and the other branch returns to the inlet regulating tank; the two dosing systems are pressurized by the dosing pump and enter the inlet regulating tank through the flow meter; (3) The effluent from the security filter is pressurized by the pump and enters the ozone catalytic tower through the flow meter; (4) The effluent from the ozone catalytic tower enters the effluent pool through gravity; (5) The effluent from the effluent pool is pressurized by the return pump of the deep treatment system and then divided into two branches. One branch enters the inlet regulating tank of the biochemical system from the top through the flow meter, and the other branch returns to the effluent pool.

[0071] The water flow process of the heterogeneous Fenton catalytic oxidation system is as follows: (1) The incoming water is first pressurized by the inlet pump and then divided into two branches. One branch enters the inlet regulating tank from the top through the flow meter, and the other branch returns to the inlet water at the front end; (2) The effluent from the inlet regulating tank is pressurized by the effluent pump and then divided into two branches. One branch enters the security filter through the flow meter, and the other branch returns to the inlet regulating tank; the two sets of dosing systems are pressurized by the dosing pump and enter the inlet regulating tank through the flow meter; (3) The effluent from the security filter is pressurized by the pump and enters the Fenton catalytic tower through the flow meter; the one set of dosing systems is pressurized by the dosing pump and enters the Fenton catalytic tower through the pipeline mixer through the flow meter; (4) The effluent from the Fenton catalytic tower enters the effluent tank by gravity; (5) The effluent from the effluent tank is pressurized by the deep treatment system return pump and then divided into two branches. One branch enters the biochemical system inlet regulating tank from the top through the flow meter, and the other branch returns to the effluent tank.

[0072] By designing each wastewater treatment compartment individually with a compact structure, not only can the treatment capacity requirements be met, but also the requirements for road transportation, thus adapting to various application scenarios. Furthermore, this design provides users with flexible combinations, enabling the treatment of more types of wastewater within a limited space. Table 1 shows examples of the dimensional parameters and treatment capacity of each wastewater treatment compartment based on the above design.

[0073] Table 1 Dimensions of the Wastewater Treatment Tank

[0074]

[0075] The configuration of the pilot plant depends on the type of wastewater and the wastewater treatment process. Taking a typical wastewater treatment process as an example, such as raw wastewater—pretreatment chamber—self-shielded irradiation chamber—post-irradiation treatment chamber—biochemical treatment chamber—deep oxidation treatment chamber—discharge and reuse wastewater treatment process, for instance... Figure 9 and Figure 10 The diagram illustrates the flow of wastewater within the integrated wastewater treatment system.

[0076] (1) After the system is started, the wastewater enters the regulating buffer tank through the inlet water pump of the pretreatment system.

[0077] The central controller can monitor and regulate the buffer tank's liquid level, pipeline flow rate, pipeline pressure, electric valve opening, sludge scraper operating status, and inlet water pump operating status in real time; the sludge pump operating status, pipeline pressure, and sludge discharge flow rate; the outlet water pump operating status, pipeline flow rate, and pipeline pressure; the high-efficiency sedimentation tank's mixer operating status, pH value, sludge value, liquid level, and turbidity value in real time; the backwash water pump operating status, pipeline pressure, and flow rate; and the intermediate water tank's liquid level, outlet water pump operating status, pipeline flow rate, and pipeline pressure in real time. Based on the liquid level in the next-level irradiation system's storage tank, it controls whether the intermediate water tank's outlet water pump operates.

[0078] The system monitors the operating status of the dosing pump and agitator in real time, and can remotely control the start and stop of the dosing pump and agitator as needed.

[0079] (2) After the system is started, the water from the pretreatment intermediate water pool flows into the water storage tank of the self-shielded irradiation chamber.

[0080] The central controller monitors in real time the opening and closing status of the water inlet solenoid valve of the water storage tank, the water level in the water storage tank, the operating status of the submersible pump in the water storage tank, the opening degree of the water outlet electric valve in the water storage tank, the water outlet pressure in the water storage tank, and the water outlet flow rate in the water storage tank.

[0081] After the water flows through the downstream device, the central controller monitors the return water flow rate, the status of the return water dual-outlet solenoid valve, and the opening of the water inlet electric valve of the collection tank in real time. Based on the liquid level in the collection tank, it controls whether the post-treatment water inlet pump runs.

[0082] The central controller monitors the liquid level in the exhaust water tank, the operating status of the submersible pump in the exhaust water tank, and the opening and closing status of the exhaust solenoid valve in real time. When the water flow reaches the irradiation set value, the system automatically controls the accelerator to emit the electron beam, and the central controller monitors the accelerator data and operating status in real time.

[0083] (3) After the system starts, the water from the irradiation system's collection tank is pumped into the equalization tank of the post-treatment system via the inlet pump. The central controller monitors the operating status of the inlet pump, the pressure of the inlet pipeline, the opening degree of the inlet valve, the liquid level and pH value of the equalization tank; it also monitors the operating status of the outlet pump, pipeline pressure and flow rate in the equalization tank in real time; it monitors the operating status of the agitator in the reaction zone of the high-density sedimentation tank, the operating status of the agitator in the flocculation zone, and the pH value in the flocculation zone in real time; the central controller monitors the operating status of the sludge pump in the sedimentation zone, the opening and closing status of the electric valve of the external discharge pipe, and the pressure value of the sludge discharge pipeline in real time; and it monitors the high-density sedimentation tank in real time. The central controller monitors the liquid level, sludge level, and turbidity levels in real time; it also monitors the operation of the dosing pump and agitator in the high-density sedimentation tank and allows for remote start-up and shutdown as needed; it monitors the operation of the agitator in the reaction zone of the neutralization and equalization tank, as well as the pH value; it monitors the liquid level in the mixing and equalization tank in real time; it monitors the operation of the effluent pump, effluent pipeline pressure, and flow rate in real time, and controls the operation of the effluent pump based on the liquid level in the influent equalization tank of the biological system; and it monitors the operation of the dosing pump and agitator in the neutralization and equalization tank in real time, allowing for remote start-up and shutdown as needed.

[0084] After system startup, the effluent from the neutralization and equalization tank of the post-treatment system enters the influent equalization tank via the influent pump of the biochemical system. The central controller monitors the operating status of the influent pump, pipeline pressure and flow rate, the opening and closing status of the electric valves, and the liquid level and pH value of the influent equalization tank in real time; the central controller monitors the operating status of the effluent pump from the influent equalization tank, as well as the pipeline pressure and flow rate; the central controller monitors the operating status of the agitator in the anoxic tank, ORP value, liquid level, and the operating status of the heater and underwater actuator in real time; the central controller monitors the dissolved oxygen value and pH value of the aerobic tank in real time. Temperature values, operating status of heating and temperature control devices and aeration blowers, and aeration pipe flow rates; the central controller monitors the operating status of the internal return sludge pump, pipeline pressure and flow rates in real time; the central controller monitors the secondary sedimentation tank level, sludge discharge pump operating status, pipeline flow and pressure, and electric valve opening and closing status in real time; the central controller monitors the effluent tank level, effluent pump operating status, effluent pipeline pressure and flow rates in real time, and controls whether the effluent pump operates based on the effluent level in the influent regulating tank of the deep treatment system; the central controller monitors the operating status of the biological treatment tank dosing pump and agitator in real time.

[0085] (5) After the system is started, the effluent from the biochemical system effluent tank will enter the ozone catalytic oxidation influent regulating tank or the heterogeneous Fenton catalytic oxidation influent regulating tank as needed.

[0086] Scenario 1: The effluent from the biochemical system's effluent tank enters the ozone catalytic oxidation influent regulating tank. The central controller monitors in real time the opening and closing status of the influent valves, the liquid level in the regulating tank, the pH value, and the operating status of the agitator in the reaction zone; the central controller monitors in real time the operating status of the regulating tank's effluent pump, and the pipeline pressure and flow rate; the central controller monitors in real time the operating status of the ozone generator, and the ozone flow rate and concentration in the ozone reaction tower; the central controller monitors in real time the effluent level in the effluent tank, the operating status of the drainage / backwash water pumps, and the pressure and flow rate of the effluent pipeline; the central controller monitors in real time the automatic valves of the backwash pipeline (branch line after the backwash water pump), the automatic air inlet valve of the backwash aeration system, the automatic effluent valve of the backwash system, and the automatic exhaust valve at the top of the tower, as well as the opening and closing status of the automatic drainage valve of the drainage pipeline; the central controller monitors in real time the operating status of the dosing pump and agitator in the influent regulating tank.

[0087] Scenario 2: The effluent from the biochemical system's effluent tank enters the heterogeneous Fenton catalytic oxidation influent equalization tank. The central controller monitors in real time the opening and closing status of the influent valve, the liquid level in the equalization tank, the pH value, and the operating status of the agitator in the reaction zone; the central controller monitors in real time the operating status of the equalization tank's effluent pump, pipeline pressure and flow rate; the central controller monitors in real time the operating status of the hydrogen peroxide dosing pump, the aeration air pump, and the aeration air flow rate; the central controller monitors in real time the effluent level in the effluent tank, the operating status of the drainage / backwash water pump, and the pressure and flow rate of the effluent pipeline; the central controller monitors in real time the opening and closing status of the automatic valves on the backwash pipeline (branch line after the backwash water pump), the automatic valve for backwash aeration air intake, the automatic valve for backwash effluent, and the automatic valve for exhaust at the top of the tower, as well as the opening and closing status of the automatic valve for drainage on the drainage pipeline; the central controller monitors in real time the operating status of the dosing pump and agitator in the equalization tank.

[0088] Those skilled in the art will understand that, depending on the water quality of the wastewater to be treated, the pretreatment chamber and the post-irradiation treatment chamber can be selectively connected; and depending on the type of wastewater to be treated, the ozone catalytic oxidation device and the heterogeneous Feton oxidation device in the biochemical treatment chamber and the deep oxidation treatment chamber can be selectively connected. In one or more embodiments of the present invention, by designing each stage of wastewater treatment with a separate structure, it is possible to combine and apply them for different wastewater treatment scenarios. Furthermore, by designing each wastewater treatment chamber as a transportable container, it is possible to utilize each wastewater treatment chamber without being limited by site conditions, thereby improving utilization and saving costs.

[0089] Based on the functional division of the integrated wastewater treatment platform using electron beam irradiation technology, the wastewater treatment system provided in one or more embodiments of this invention mainly consists of seven technical modules. The first is the core module, the electron beam irradiation module, which uses a linear accelerator with energy of 1-3 MeV and power not exceeding 2kW. It employs a self-shielded structure design and achieves continuous and rapid wastewater transport and irradiation with specified doses via a wastewater conveying device, meeting different irradiation treatment needs. It features high integration of the accelerator, shielding, and wastewater conveying system, portability, small size, and ease of transportation. The second is the central control module, which can monitor and control the technical parameters of individual technical modules in real time, as well as multiple combinations of technical modules. It has data recording and statistical analysis functions, including key parameters of accelerator irradiation, key parameters of wastewater conveying, and related treatment parameters. The third is the pretreatment module, which treats wastewater with high turbidity. Through staged treatment via a regulating buffer tank, a high-efficiency sedimentation tank, an intermediate water tank, and a self-cleaning filter, suspended solids and other contaminants in the wastewater are removed to meet the requirements of subsequent treatment technologies. Fourth is the post-treatment module, which includes a coagulation sedimentation tank and a neutralization equalization tank. The coagulation sedimentation tank can treat the irradiated wastewater, remove the precipitates generated in the wastewater, and adjust the wastewater quality conditions, such as pH, to meet the needs of subsequent treatment processes. Fifth is the biological treatment module, which includes an influent equalization tank, an anoxic tank, an aerobic tank, a secondary sedimentation tank, and a sludge return device. It can perform anoxic treatment, aerobic treatment, and secondary sedimentation treatment for different types of wastewater to achieve the purpose of removing pollutants from the wastewater. Sixth is the ozone catalytic oxidation technology module, which treats effluent from biochemical treatment or electron beam irradiation. It uses an ozone catalytic oxidation tower to improve gas-water mixing efficiency, achieving efficient mixing of ozone and wastewater, and effectively degrading and removing residual organic pollutants in the wastewater. Seventh is the heterogeneous Fenton oxidation technology module, which treats effluent from biochemical treatment or electron beam irradiation. It uses a liquid-phase fluidized bed and utilizes the combined action of oxidant (H2O2) and heterogeneous Fenton catalyst to treat residual organic pollutants in wastewater.

[0090] One or more embodiments of this invention use a mobile self-shielded irradiation system as the core, selectively connecting a wastewater pretreatment system, an irradiation posttreatment system, a biochemical system, and an advanced treatment system. All of these systems are integrated into a standard container, including a central control compartment, a self-shielded irradiation system compartment, a pretreatment compartment, a posttreatment compartment, a biochemical treatment compartment, and an advanced treatment compartment. Each compartment has independent inlet and outlet water pipes, a complete water circulation pipeline, and an independent control system, allowing for individual use and independent operation in different scenarios. Its miniaturized and compact structure makes it suitable for use in various application scenarios. Different technical modules can be combined according to the actual wastewater conditions to form a highly efficient and cost-effective wastewater treatment implementation plan. Furthermore, the above-mentioned compartments are managed and controlled by a highly integrated central control management system, which can be organically and flexibly combined into a composite wastewater treatment platform according to the characteristics of the wastewater to be treated, forming a multifunctional, highly compatible, and highly efficient integrated electron beam irradiation wastewater treatment platform.

[0091] While the specific embodiments of the present invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of the present invention are still within the scope of protection of the present invention.

Claims

1. An integrated wastewater treatment system using electron beam irradiation, characterized in that, It includes a self-shielded irradiation chamber and at least one other wastewater treatment chamber. Each wastewater treatment chamber is equipped with a standardized outlet and inlet interface for connecting with other wastewater treatment chambers through pipelines to form a multi-stage wastewater treatment system. The self-shielded irradiation chamber includes a water storage tank, a receiving water tank, an accelerator, and an irradiated water box. The water inlet of the self-shielded irradiation chamber is connected to the first inlet of the water storage tank via an inlet pipe. The first outlet of the water storage tank is connected to the inlet of the irradiated water box via a first pipe. The outlet of the irradiated water box is connected to the inlet of the receiving water tank via a second pipe. The first outlet of the receiving water tank is connected to the outlet of the self-shielded irradiation chamber. The second outlet of the receiving water tank is connected to the second inlet of the water storage tank via a self-circulation pipe. A submersible pump is connected to the self-circulation pipe. The submersible pump is used to transport water from the receiving water tank back to the water storage tank through the self-circulation pipe. Then, the water in the water storage tank is transported back to the irradiated water box through the first pipe, achieving wastewater self-circulation for multiple irradiations. The second pipeline is also provided with a branch pipeline, which is connected to the third inlet of the water storage tank. A directional control valve is provided at the branch to control the flow of wastewater through the irradiated water box to the water storage tank or the receiving water tank. Based on this, when the electron beam is not in place or the beam is not stable, the wastewater is returned to the water storage tank. The accelerator and irradiated water box are equipped with an irradiation shielding structure. The outer wall thickness of the irradiation shielding structure varies in different local areas. An analysis space is defined with the irradiation shielding structure as the center. An X-ray energy value is set, and the point with the highest irradiation dose is recorded as the radiation source point. An initial thickness of the irradiation shielding structure is set, and the irradiation dose rate received at the boundary of the analysis space under the initial thickness is calculated. Based on the irradiation dose rate threshold set for the boundary of the analysis space, the thickness of the irradiation shielding structure is optimized to ensure that the irradiation dose rate threshold is met when the radiation source point reaches the boundary of the analysis space.

2. The integrated wastewater treatment system for electron beam irradiation as described in claim 1, characterized in that, Each wastewater treatment compartment is equipped with a compartment control system, as well as wastewater transfer control and monitoring elements connected to the compartment control system; the system also includes a central controller that can establish a connection with the compartment control systems of each compartment in the multi-stage wastewater treatment system.

3. The integrated wastewater treatment system for electron beam irradiation as described in claim 2, characterized in that, The system also includes a supervisory control system and / or a voice broadcasting system, which are connected to the central controller.

4. The integrated wastewater treatment system for electron beam irradiation as described in claim 1, characterized in that, The system also includes a video surveillance system, with cameras in each wastewater treatment chamber used to monitor key equipment.

5. The integrated wastewater treatment system for electron beam irradiation as described in claim 1, characterized in that, The irradiated water box is also provided with another outlet, which is connected to the inlet of the wastewater recycling tank; the outlet of the wastewater recycling tank is connected to the third inlet of the water storage tank via a third channel.

6. The integrated wastewater treatment system for electron beam irradiation as described in claim 1, characterized in that, The irradiation shielding structure includes an upper shield and a lower shield. The upper shield surrounds the accelerator. The lower shield has an internal cavity for housing an irradiated water box.

7. The integrated wastewater treatment system for electron beam irradiation as described in claim 1, characterized in that, The other wastewater treatment chambers include a pretreatment chamber, an irradiation posttreatment chamber, a biochemical system chamber, and an oxidation deep treatment chamber.

8. A control method for an integrated wastewater treatment system using electron beam irradiation as described in any one of claims 1-7, applied to a central controller, characterized in that, The method includes: In response to start-stop control commands, the system controls the start-stop of wastewater treatment systems at all levels, monitors the operating status of wastewater treatment systems at all levels in real time based on monitoring elements, and controls the flow rate and direction of wastewater transmission within the corresponding compartment in response to the adjustment parameters of the wastewater transmission control elements. The start-stop control command is automatically generated based on preset start-stop conditions, which include the effluent and influent conditions of each wastewater treatment chamber.

Images