Advanced oxidation collaborative filtering system and method

Abstract

An outlet of a solution tank is communicated with an inlet of a pipeline mixer through a first pipeline, an outlet of a raw water tank is communicated with the inlet of the pipeline mixer through a second pipeline, and the outlet of the raw water tank is communicated with an inlet of a US activation filter through a third pipeline; an outlet of the pipeline mixer is communicated with an inlet of a US activation filter through an ultraviolet generator; a first turbidity meter is arranged on the second pipeline; a produced water outlet of the US activation filter is communicated with an inlet of the produced water tank through a fourth pipeline; a second turbidity meter is sequentially arranged on the fourth pipeline along the water flow direction; the US activation filter is provided with an ultrasonic probe, the ultrasonic probe is connected with an alternating current power supply through an ultrasonic generator main body, and the system and the method can be low in treatment cost.

Description

Technical Field

[0001] The invention belongs to the technical field of water treatment and relates to an advanced oxidation collaborative filtration system and method. Background Art

[0002] With the progress of urbanization, the urban population is increasing, and the corresponding sewage output is also increasing. Traditional industrial wastewater treatment processes generally use a combination of "pretreatment + biochemical + deep treatment" and "membrane concentration + evaporation crystallization" combined with brine treatment to achieve zero emissions. This method has poor adaptability to water quality changes. When the raw water quality fluctuates greatly, it may affect the treatment effect of each treatment unit, resulting in unstable effluent water quality. Some special pollutants or high-concentration difficult-to-degrade organic matter may not be effectively removed, affecting the overall treatment effect and making it difficult to meet increasingly stringent environmental emission standards.

[0003] Traditional AOPs use hydroxyl radicals as active intermediates to oxidize and degrade pollutants in wastewater, but their oxidizing ability and reaction activity vary significantly under different pH conditions, which requires strict control of pH values ​​in actual wastewater treatment, increasing the complexity and cost of the treatment process. The lifetime of hydroxyl radicals is extremely short, usually in nanoseconds. This means that the time it can migrate and react with pollutants in wastewater is very limited, and in many cases it is self-quenched before it can fully exert its oxidizing effect, resulting in low utilization efficiency of the oxidant. More oxidants need to be invested to achieve the desired treatment effect, further increasing the treatment cost. Summary of the invention

[0004] The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art and provide an advanced oxidation collaborative filtration system and method, which can achieve low processing costs.

[0005] To achieve the above object, the present invention discloses an advanced oxidation collaborative filtration system, comprising a solution tank, a pipeline mixer, a raw water tank, a US activated filter, a produced water tank and an AC power supply;

[0006] The outlet of the solution tank is connected to the inlet of the pipeline mixer via a first pipeline, the outlet of the raw water tank is connected to the inlet of the pipeline mixer via a second pipeline, the outlet of the raw water tank is connected to the inlet of the US activated filter via a third pipeline, the outlet of the pipeline mixer is connected to the inlet of the US activated filter via an ultraviolet generator, and a first turbidity meter is provided on the second pipeline;

[0007] The water output outlet of the US activated filter is connected to the inlet of the water output tank via a fourth pipe, and a second turbidity meter is sequentially arranged on the fourth pipe along the water flow direction;

[0008] The US activated filter is provided with an ultrasonic probe, and the ultrasonic probe is connected to an AC power source via an ultrasonic generator body.

[0009] The further improvement of the advanced oxidation collaborative filtration system of the present invention is:

[0010] Furthermore, a first booster pump is provided on the first pipeline.

[0011] Furthermore, a second booster pump is provided on the second pipeline.

[0012] Furthermore, a third booster pump is provided on the third pipeline.

[0013] Furthermore, a second turbidity meter, a fourth booster pump, a flow meter and an oxidation-reduction potential are sequentially arranged on the fourth pipeline along the water flow direction.

[0014] Furthermore, the outlet of the production water tank is connected to the backwash water inlet of the US activated filter via the fifth booster pump.

[0015] Furthermore, it also includes a backwash fan, and the outlet of the backwash fan is connected to the backwash air inlet of the US activated filter.

[0016] Furthermore, a stirrer is provided in the solution tank.

[0017] The present invention discloses an advanced oxidation collaborative filtration method, comprising the following steps:

[0018] The persulfate output from the solution tank is mixed with the raw water output from the raw water tank through a pipeline mixer and then enters the UV generator. In the UV generator, UV-induced activation is used to break the OO bond in the persulfate to generate sulfate free radicals (SO4 - ·) and preliminarily decompose and oxidize the organic matter in the raw water, and then enter the US activation filter, using the ultrasonic wave emitted by the ultrasonic probe to further induce activation of the persulfate that has not been completely decomposed in the water, and further oxidize and degrade the organic matter in the raw water.

[0019] Furthermore, it also includes:

[0020] Detecting turbidity data of raw water by a first turbidity meter, and detecting turbidity data of produced water by a second turbidity meter;

[0021] Standardizing the turbidity data of the raw water and the turbidity data of the produced water;

[0022] The standardized raw water turbidity data and produced water turbidity data are input into the trained DQN model to obtain the optimized ultraviolet wavelength λ and ultrasonic frequency f;

[0023] The ultraviolet generator and the ultrasonic generator body are controlled according to the optimized ultraviolet wavelength λ and the ultrasonic frequency f.

[0024] The present invention has the following beneficial effects:

[0025] The advanced oxidation collaborative filtration system and method described in the present invention adopts a method of connecting an ultraviolet generator with a US activation filter during specific operation, and uses UV-induced activation of persulfate to produce sulfate radicals to preliminarily decompose and oxidize organic matter in raw water. The US activation filter is then used to further induce activation of incompletely decomposed persulfate to produce other active substances such as hydroxyl groups, thereby immediately oxidizing and degrading organic pollutants in the raw water. The synergistic effect of the two improves the system's ability to treat pollutants, avoids the addition of excessive oxidants, has low costs, overcomes some limitations of traditional advanced oxidation processes, and provides new approaches and methods for treating new pollutants and improving wastewater treatment effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0027] Figure 1 This is a system diagram of the present invention.

[0028] Figure 2 The figure is a flow chart of the method of the present invention.

[0029] Among them, 1 is a solution tank, 2 is an agitator, 31 is a first booster pump, 32 is a second booster pump, 33 is a third booster pump, 34 is a fourth booster pump, 35 is a fifth booster pump, 4 is a pipeline mixer, 5 is a UV generator, 6 is an AC power supply, 7 is an ultrasonic probe, 8 is a US activated filter, 9 is a flow meter, 10 is an oxidation-reduction potential, 11 is a production water tank, 12 is a raw water tank, 13 is an ultrasonic generator body, 141 is a first turbidity meter, 142 is a second turbidity meter, and 15 is a backwash fan. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be understood that the terms “include” and “comprises” indicate the presence of described features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or collections thereof.

[0032] It should also be understood that the terms used in the present specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the present specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0033] It should be further understood that the term "and / or" used in the present specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes these combinations. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in the present invention generally indicates that the associated objects are in an "or" relationship.

[0034] It should be understood that, although the terms first, second, third, etc. may be used to describe preset ranges, etc. in the embodiments of the present invention, these preset ranges should not be limited to these terms. These terms are only used to distinguish preset ranges from each other. For example, without departing from the scope of the embodiments of the present invention, the first preset range may also be referred to as the second preset range, and similarly, the second preset range may also be referred to as the first preset range.

[0035] The word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)", depending on the context.

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can usually be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0037] Various structural schematic diagrams of the embodiments disclosed in the present invention are shown in the accompanying drawings. These figures are not drawn to scale, and some details are magnified and some details may be omitted for the purpose of clear expression. The shapes of various regions and layers shown in the figures and the relative sizes and positional relationships therebetween are only exemplary, and may deviate in practice due to manufacturing tolerances or technical limitations, and those skilled in the art may additionally design regions / layers with different shapes, sizes, and relative positions according to actual needs.

[0038] Embodiment 1

[0039] refer to Figure 1 The advanced oxidation collaborative filtration system of the present invention comprises a solution tank 1, a pipeline mixer 4, a raw water tank 12, a US activated filter 8, a produced water tank 11 and an AC power supply 6;

[0040] The outlet of the solution tank 1 is connected to the inlet of the pipeline mixer 4 via the first pipeline, the outlet of the raw water tank 12 is connected to the inlet of the pipeline mixer 4 via the second pipeline, the outlet of the raw water tank 12 is connected to the inlet of the US activated filter 8 via the third pipeline, and the outlet of the pipeline mixer 4 is connected to the inlet of the US activated filter 8 via the ultraviolet generator 5. The first pipeline is provided with a first booster pump 31, the second pipeline is provided with a second booster pump 32 and a first turbidity meter 141, and the third pipeline is provided with a third booster pump 33;

[0041] The water production outlet of the US activated filter 8 is connected to the inlet of the water production tank 11 via a fourth pipe, and a second turbidity meter 142, a fourth booster pump 34, a flow meter 9 and an oxidation-reduction potential 10 are sequentially arranged on the fourth pipe along the water flow direction. The outlet of the backwash fan 15 is connected to the backwash air inlet of the US activated filter 8, and the outlet of the water production tank 11 is connected to the backwash water inlet of the US activated filter 8 via a fifth booster pump 35.

[0042] The US activated filter 8 is provided with an ultrasonic probe 7 , and the ultrasonic probe 7 is connected to the AC power supply 6 via an ultrasonic generator body 13 .

[0043] The solution tank 1 is provided with an agitator 2, which is the place for dissolving and preparing persulfate. The agitator 2 stirs at a uniform speed to dissolve the persulfate. The body of the solution tank 1 needs to be sealed and protected from light. The persulfate can be any one or more of sodium persulfate (Na2S2O8), potassium persulfate (K2S2O8) and ammonium persulfate ((NH4)2S2O8).

[0044] The function of the ultraviolet generator 5 is to use UV-induced activation to break the OO bond in the persulfate to generate sulfate radicals (SO4 - ·), with strong oxidizing properties, initially decomposes and oxidizes organic matter in the raw water. The specific principle is:

[0045]

[0046] It should be noted that the effective wavelength for preliminary decomposition is 265-365nm.

[0047] The collaborative filter is composed of an ultrasonic probe 7, an AC power supply 6 and an ultrasonic generator body 13. Specifically, the ultrasonic probes 7 are evenly distributed in the water inlet area of ​​the US activated filter 8 and fixed on the inner wall of the US activated filter 8. The ultrasonic probe 7 is connected to the ultrasonic generator body 13 and is matched with the AC power supply 6.

[0048] The function of the US activated filter 8 is to further induce activation of the persulfate that is not completely decomposed in the ultraviolet generator 5 by means of the combined cooperation of the filter and the US ultrasonic generator, thereby reducing the operating pressure of the filter material.

[0049] It should be noted that the function of the ultrasonic generator is to induce persulfate to produce other active substances such as hydroxyl groups, which immediately oxidize and degrade organic pollutants in the raw water. In this embodiment, the operating frequency of the ultrasonic generator is 30-50 Hz. The specific principle is:

[0050]

[0051] SO4 - +OH - →SO4 2- +OH

[0052] HSO5 - →SO4 - ·+OH·

[0053] Furthermore, the outlet water of the US activated filter 8 enters the water production tank 11 .

[0054] Embodiment 2

[0055] The advanced oxidation collaborative filtration method of the present invention comprises the following steps:

[0056] 1) Data collection: The turbidity data of the raw water is detected by the first turbidity meter 141, and the turbidity data of the produced water is detected by the second turbidity meter 142;

[0057] 2) Data preprocessing, standardizing the turbidity data obtained by detection;

[0058] In actual data processing, different working conditions may have different units and magnitudes. Through Z-score standardization, these data of different magnitudes can be converted to a relatively unified scale, so that they can participate equally in the subsequent data analysis. That is, for the turbidity data x at any time in the system, i , both have Finally, z i Used for model training;

[0059] Among them, μ is the mean of all turbidity data, that is, σ is the standard deviation of all turbidity data, that is

[0060] 3) Use the random forest regression model to predict the outlet turbidity n corresponding to the ultraviolet wavelength and ultrasonic frequency under different working conditions and different inlet conditions, and use this to train the random forest regression model to learn the input features, that is, the turbidity data n0 of the raw water and the turbidity data n of the produced water, that is, there is a relationship The trained model.

[0061] 41) setting a state space S, wherein the state space includes the turbidity data n0 of the raw water and the turbidity data n of the produced water;

[0062] 42) Define an action space A, wherein the action space A includes an ultraviolet wavelength λ and an ultrasonic frequency f.

[0063] 5) Reinforcement learning training: Use the DQN model to optimize the UV intensity and ultrasonic frequency, that is, adjust the learning rate α and discount factor γ during model training. The trained DQN model is used to select the optimal UV intensity and frequency in the new environment. The model training iteration formula is Q(s t ,α t )→Q(s t ,α t )+α(r t +γmax a' Q(s t+1 ,α')-Q(s t ,α t)), the Q-value function is updated through multiple iterations, and the UV intensity and frequency are adjusted according to the strategy, and used to select the optimal UV intensity and frequency in the new environment;

[0064] 6) Feedback and updates;

[0065] Calculate the removal efficiency of the system Feedback and update the DQN model. Update the DQN model according to the new reward to further optimize the adjustment strategy and make more accurate optimization decisions in future steps.

[0066] 6) Execute the optimization model;

[0067] The current raw water turbidity data and the produced water turbidity data are obtained, and the current raw water turbidity data and the produced water turbidity data are input into the trained DQN model to obtain the optimized ultraviolet wavelength λ and ultrasonic frequency f, and the ultraviolet generator 5 and the ultrasonic generator body 13 are controlled according to the optimized ultraviolet wavelength λ and ultrasonic frequency f.

[0068] It should be noted that the present invention has the following characteristics:

[0069] The present invention utilizes sulfate free radicals generated by the decomposition of persulfate, which have high redox potential and longer life. Compared with traditional AOPs with hydroxyl free radicals as active intermediates, it has a higher removal rate for difficult-to-degrade organic matter, can more effectively treat high-concentration industrial wastewater, and improve the influent water quality from the source.

[0070] The present invention adopts a method of connecting an ultraviolet generator 5 with a US activation filter 8, and uses UV-induced activation of persulfate to produce sulfate radicals to preliminarily decompose and oxidize organic matter in the raw water. The US activation filter 8 is then used to further induce activation of the incompletely decomposed persulfate to produce other active substances such as hydroxyl groups, thereby immediately oxidizing and degrading organic pollutants in the raw water. The synergistic effect of the two improves the system's ability to treat pollutants.

[0071] The present invention is equipped with an online monitoring instrument valve and a control algorithm. The data is standardized based on the z-score, and a random forest regression model is used to predict the effluent turbidity corresponding to the ultraviolet wavelength and ultrasonic frequency under different working conditions. The DQN model is used for reinforcement learning training to optimize the ultraviolet intensity and ultrasonic frequency. It can automatically adjust to the optimal working state according to the actual situation, thereby improving the adaptability and processing efficiency of the system.

[0072] Embodiment 3

[0073] A computer device includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the steps of the advanced oxidation collaborative filtration method are implemented, for example, including: detecting the turbidity data of raw water by a first turbidity meter 141, detecting the turbidity data of produced water by a second turbidity meter 142; standardizing the turbidity data of the raw water and the turbidity data of produced water; inputting the standardized turbidity data of the raw water and the turbidity data of the produced water into a trained DQN model to obtain an optimized ultraviolet wavelength λ and an ultrasonic frequency f; and controlling the ultraviolet generator 5 and the ultrasonic generator body 13 according to the optimized ultraviolet wavelength λ and the ultrasonic frequency f. The memory may include a memory, such as a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk memory, etc. The processor, the network interface, and the memory are interconnected through an internal bus, which may be an industrial standard architecture bus, a peripheral component interconnection standard bus, an extended industrial standard architecture bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc. The memory is used to store programs, specifically, the programs may include program codes, and the program codes include computer operation instructions. The memory may include internal memory and non-volatile memory, and provide instructions and data to the processor.

[0074] Embodiment 4

[0075] A computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of implementing the advanced oxidation collaborative filtration method are, for example, including: detecting the turbidity data of raw water by a first turbidity meter 141, detecting the turbidity data of produced water by a second turbidity meter 142; standardizing the turbidity data of the raw water and the turbidity data of produced water; inputting the standardized turbidity data of the raw water and the turbidity data of the produced water into the trained DQN model to obtain the optimized ultraviolet wavelength λ and the ultrasonic frequency f; controlling the ultraviolet generator 5 and the ultrasonic generator body 13 according to the optimized ultraviolet wavelength λ and the ultrasonic frequency f. Specifically, the computer-readable storage medium includes, but is not limited to, for example, volatile memory and / or non-volatile memory. The volatile memory may include a random access memory (RAM) and / or a cache memory (cache), etc. The non-volatile memory may include a read-only memory (ROM), a hard disk, a flash memory, an optical disk, a magnetic disk, etc.

[0076] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0077] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0078] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0079] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0080] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and disclosure of the invention. This application is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed by the present invention. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0081] It should be understood that the present invention is not limited to the exact construction that has been described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

[0082] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent structural change made to the above embodiment based on the technical essence of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An advanced oxidation collaborative filtration system, characterized in that: It includes a solution tank (1), a pipeline mixer (4), a raw water tank (12), a US activated filter (8), a produced water tank (11) and an AC power supply (6); The outlet of the solution tank (1) is connected to the inlet of the pipeline mixer (4) via a first pipeline, the outlet of the raw water tank (12) is connected to the inlet of the pipeline mixer (4) via a second pipeline, the outlet of the raw water tank (12) is connected to the inlet of the US activated filter (8) via a third pipeline, the outlet of the pipeline mixer (4) is connected to the inlet of the US activated filter (8) via an ultraviolet generator (5), and a first turbidity meter (141) is provided on the second pipeline; The water output outlet of the US activated filter (8) is connected to the inlet of the water output tank (11) via a fourth pipeline, and second turbidity meters (142) are sequentially arranged on the fourth pipeline along the water flow direction; The US activated filter (8) is provided with an ultrasonic probe (7), and the ultrasonic probe (7) is connected to an alternating current power source (6) via an ultrasonic generator body (13).

2. The advanced oxidation collaborative filtration system according to claim 1, characterized in that: A first booster pump (31) is arranged on the first pipeline.

3. The advanced oxidation collaborative filtration system according to claim 1, characterized in that: A second booster pump (32) is arranged on the second pipeline.

4. The advanced oxidation collaborative filtration system according to claim 1, characterized in that: The third pipeline is provided with a third booster pump (33).

5. The advanced oxidation collaborative filtration system according to claim 1, characterized in that: A second turbidity meter (142), a fourth booster pump (34), a flow meter (9) and an oxidation-reduction potential meter (10) are sequentially arranged on the fourth pipeline along the water flow direction.

6. The advanced oxidation collaborative filtration system according to claim 1, characterized in that: The outlet of the production water tank (11) is connected to the backwash water inlet of the US activated filter (8) via the fifth booster pump (35).

7. The advanced oxidation collaborative filtration system according to claim 1, characterized in that: It also includes a backwash fan (15), the outlet of the backwash fan (15) is connected to the backwash air inlet of the US activated filter (8).

8. The advanced oxidation collaborative filtration system according to claim 1, characterized in that: A stirrer (2) is arranged in the solution tank (1).

9. An advanced oxidation collaborative filtration method, characterized in that: The advanced oxidation collaborative filtration system according to claim 1 comprises the following steps: The persulfate output from the solution tank (1) is mixed with the raw water output from the raw water tank (12) through a pipeline mixer (4) and then enters the ultraviolet generator (5). In the ultraviolet generator (5), the OO bond in the persulfate is broken by UV-induced activation to generate sulfate radicals (SO4 - ·) and preliminarily decompose and oxidize the organic matter in the raw water, and then enter the US activation filter (8), where the ultrasonic wave emitted by the ultrasonic probe (7) is used to further induce activation of the persulfate that has not been completely decomposed in the water, and further oxidize and degrade the organic matter in the raw water.

10. The advanced oxidation collaborative filtration method according to claim 9, characterized in that: Also includes: Detecting turbidity data of raw water by using a first turbidity meter (141), and detecting turbidity data of produced water by using a second turbidity meter (142); Standardizing the turbidity data of the raw water and the turbidity data of the produced water; The standardized raw water turbidity data and produced water turbidity data are input into the trained DQN model to obtain the optimized ultraviolet wavelength λ and ultrasonic frequency f; The ultraviolet generator (5) and the ultrasonic generator body (13) are controlled according to the optimized ultraviolet wavelength λ and the ultrasonic frequency f.

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