Regulation and control method and system for activated sludge process and electronic equipment

Abstract

The invention relates to the technical field of wastewater treatment, in particular to a regulation and control method and system for an activated sludge process and electronic equipment. The method comprises the following steps: acquiring activated sludge property evaluation information; matching the activated sludge property evaluation information with data in an activity standard database of biochemical sludge; and implementing negative feedback optimization of the working condition of the activated sludge system on the activated sludge property evaluation information which is unqualified in matching with the activity standard database of the biochemical sludge. According to the regulation and control method of the activated sludge process, stable and reliable operation of the activated sludge process is achieved according to the constructed activity standard database of biochemical sludge, parameters such as system regulation and control logic and signal intensity of the method are subjected to mass data adjustment and calibration, self-adaptive regulation and control are achieved based on real-time monitoring results, timeliness is higher, and the method is suitable for popularization and application. The actual operation condition can continuously tend to an ideal condition point, the system unbalance risk is remarkably reduced, and the labor cost is greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, and particularly relates to a regulation method, system and electronic device for an activated sludge process. Background Art

[0002] The activated sludge process is widely used in industrial and municipal wastewater treatment due to its good economy and strong adaptability to water quality and quantity. The actual incoming water load cannot only fluctuate within the designed range. Therefore, taking timely measures to ensure the stability of the activated sludge process is the key to continuously meeting the effluent standards.

[0003] In the current sewage treatment plants, the activated sludge process system mainly monitors the effluent water quality, regularly detects the physical and chemical properties of the mixed liquor (MLSS, MLVSS, SV, SVI), and uses artificial experience for regulation. This regulation method has hysteresis in time, there is a risk of system imbalance, and it is greatly affected by human factors, prone to errors, and difficult to achieve full-day monitoring and regulation. Therefore, a method for regulating the operation of an activated sludge process system with real-time monitoring and full-process adaptability is needed. Summary of the Invention

[0004] To solve the deficiencies in the above-mentioned prior art, the present invention provides a regulation method, system and electronic device for an activated sludge process.

[0005] The first aspect of the present invention provides a regulation method for an activated sludge process, including:

[0006] Obtaining evaluation information on the properties of activated sludge;

[0007] Matching the evaluation information on the properties of activated sludge with the data in the active standard database of biochemical sludge; implementing negative feedback optimization of the operating conditions of the activated sludge system for the evaluation information on the properties of activated sludge that does not pass the match with the active standard database of biochemical sludge;

[0008] The method for constructing the active standard database of biochemical sludge includes:

[0009] Obtaining an image sample of activated sludge in the aeration tank and the effluent water quality information of the sedimentation tank after a preset time from the acquisition of the image sample of activated sludge in the aeration tank;

[0010] Generating information on the microbial composition in the activated sludge in the aeration tank based on the image sample of activated sludge in the aeration tank;

[0011] Generating evaluation information on the properties of activated sludge based on the effluent water quality information of the sedimentation tank, the information on the microbial composition in the activated sludge in the aeration tank, and a preset water quality evaluation system;

[0012] Repeatedly obtain the evaluation information of the activated sludge properties, store the evaluation information of the activated sludge properties generated each time, and generate an activity standard database of biochemical sludge.

[0013] In one embodiment, the method for obtaining an image sample of the activated sludge in the aeration tank includes:

[0014] Collect an activated sludge sample at the end of the aeration tank;

[0015] Collect an image of the activated sludge sample;

[0016] Perform an easy-to-recognize process on the collected image to obtain an image sample of the activated sludge in the aeration tank.

[0017] In one embodiment, the easy-to-recognize process includes at least one of gray correction, denoising, sharpening, edge enhancement, or contrast enhancement.

[0018] In one embodiment, perform pretreatment on the collected activated sludge sample in the aeration tank;

[0019] The pretreatment includes a shaking homogenization process.

[0020] In one embodiment, the method for generating the microbial composition information in the activated sludge in the aeration tank includes:

[0021] Obtain an image sample of the activated sludge in the aeration tank;

[0022] Extract the image of the effective area with the morphological characteristics of microorganisms on the image sample;

[0023] Identify the types and quantities of microorganisms in the sample according to the characteristics of the microorganisms on the effective area image.

[0024] In one embodiment, the preset time is the time for the water to flow from the sampling point in the aeration tank to the water quality sampling point in the sedimentation tank.

[0025] In one embodiment, the optimizable items of the activated sludge system operating conditions include at least one of the aeration time, aeration volume, stirring intensity, sludge return ratio, or influent water volume.

[0026] The second aspect of the present invention provides a control system for an activated sludge process, including:

[0027] A first acquisition unit configured to acquire an image sample of the activated sludge in the aeration tank;

[0028] A second acquisition unit configured to acquire the water quality information of the effluent from the sedimentation tank after a preset time from the acquisition of the image sample of the activated sludge in the aeration tank;

[0029] A first generation unit, configured to generate information on the microbial composition in the activated sludge of the aeration tank according to the image sample of the activated sludge in the aeration tank;

[0030] A second generation unit, configured to generate evaluation information on the properties of the activated sludge according to the effluent water quality information of the sedimentation tank, the information on the microbial composition in the activated sludge of the aeration tank, and a preset water quality evaluation system;

[0031] A regulation unit, configured to perform negative feedback optimization on the operating conditions of the activated sludge system of the aeration tank corresponding to the evaluation information on the properties of the activated sludge that does not pass the matching with the active standard database of the biochemical sludge;

[0032] A storage unit, configured to store the evaluation information on the properties of the activated sludge generated each time.

[0033] A third aspect of the present invention provides an electronic device, including:

[0034] One or more processors;

[0035] A storage device, on which one or more programs are stored;

[0036] When the one or more programs are executed by the one or more processors, the one or more processors implement the regulation method as described above.

[0037] A fourth aspect of the present invention provides a computer-readable medium, on which a computer program is stored, wherein the computer program, when executed by a processor, implements the regulation method as described above.

[0038] Based on the above, compared with the prior art, the regulation method of the activated sludge process provided by the present invention realizes the stable and reliable operation of the activated sludge process according to the constructed active standard database of the biochemical sludge. The system regulation logic, signal strength and other parameters of this method are calibrated through a large amount of data, and adaptive regulation is realized based on the real-time monitoring results, with stronger timeliness, which can make the actual operating conditions continuously tend to the ideal operating point, significantly reduce the risk of system imbalance and greatly reduce the labor cost.

[0039] Other features and beneficial effects of the present invention will be described in the subsequent specification, and part of them will become obvious from the specification, or will be understood by implementing the present invention. The objectives and other beneficial effects of the present invention can be realized and obtained through the structures specifically pointed out in the specification, claims and drawings. Description of the Drawings

[0040] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0041] Figure 1 Flowchart of the method for constructing the activity standard database of biochemical sludge provided by the first embodiment of the present invention;

[0042] Figure 2 Flowchart of the regulation method for the activated sludge process provided by the second embodiment of the present invention;

[0043] Figure 3 Schematic structural diagram of the regulation system suitable for implementing some embodiments of the present invention;

[0044] Figure 4 Schematic structural diagram of the electronic device suitable for implementing some embodiments of the present invention. Detailed implementation manners

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. The technical features designed in different implementation manners of the present invention described below can be combined with each other as long as they do not conflict with each other. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0046] In the description of the present invention, it should be noted that all terms used in the present invention (including technical terms and scientific terms) have the same meanings as those commonly understood by those of ordinary skill in the technical field to which the present invention belongs, and should not be construed as a limitation to the present invention. It should be further understood that the terms used in the present invention should be understood as having meanings consistent with their meanings in the context of this specification and the relevant technical fields, and should not be understood in an idealized or overly formal sense, unless otherwise clearly defined in the present invention.

[0047] Refer to Figure 1 , the first embodiment of the present invention provides a method for constructing an activity standard database of biochemical sludge, including the following steps:

[0048] Step 1, obtain the activated sludge image sample of the aeration tank and the effluent water quality information of the sedimentation tank after a preset time from the activated sludge image sample of the aeration tank;

[0049] In this embodiment, the method for obtaining an image sample of activated sludge in an aeration tank includes:

[0050] Collect activated sludge samples at the end of the aeration tank;

[0051] capturing an image of the activated sludge sample;

[0052] The collected images are processed for easy identification to obtain the activated sludge image samples of the aeration tank.

[0053] In some embodiments, the execution subject (e.g., computing device) of the method for constructing an activity standard database of biochemical sludge can obtain the above-mentioned sludge particle image sequence through a wired connection or a wireless connection. The image of the activated sludge sample can be an image corresponding to the activated sludge in the aeration tank captured by a high-speed camera.

[0054] It should be noted that the above-mentioned wireless connection methods may include but are not limited to 3G / 4G / 5G connection, WiFi connection, Bluetooth connection, WiMAX connection, Zigbee connection, UWB (ultrawideband) connection, and other wireless connection methods currently known or to be developed in the future.

[0055] It should be noted that the above-mentioned computing device can be hardware or software. When the computing device is hardware, it can be implemented as a distributed cluster consisting of multiple servers or terminal devices, or it can be implemented as a single server or a single terminal device. When the computing device is embodied as software, it can be installed in the hardware devices listed above. It can be implemented as multiple software or software modules for providing distributed services, for example, or it can be implemented as a single software or software module. No specific limitation is made here. It should be understood that the number of computing devices can be any number according to the implementation needs.

[0056] In this embodiment, the easily identifiable processing includes grayscale correction, (filtering) denoising, sharpening, edge enhancement, or contrast enhancement of the acquired image. Of course, one or more of these processings may be selected in a targeted manner.

[0057] In this embodiment, the preset time is the time for the water to flow from the sampling point of the aeration tank to the water quality sampling point of the sedimentation tank; preferably, the sampling point of the aeration tank is at the end of the aeration tank; it should be noted that the purpose of obtaining the water quality information of the sedimentation tank effluent after the preset time of the activated sludge image sample of the aeration tank is to match the water quality information extracted after the activated sludge sample extracted at the end of the aeration tank with the water body currently being treated by the activated sludge sample; thereby, judging whether the microbial composition of the current water body corresponding to the activated sludge sample can realize and complete the treatment of the water body through the water quality test result, so that the water quality discharged into the sedimentation tank is qualified;

[0058] In one embodiment, a sampler is provided at the end of the aeration tank to regularly extract activated sludge samples; preferably, the extracted activated sludge samples are shaken evenly.

[0059] In one embodiment, a sampler is provided at the end of the aeration tank to regularly extract activated sludge samples; preferably, the collected activated sludge samples from the aeration tank are pretreated.

[0060] The pretreatment includes homogenization treatment; the pretreatment includes shaking homogenization treatment; specifically, the homogenization treatment includes placing the obtained activated sludge sample in a collection container and shaking and mixing the collection container in a 45° oblique rotation manner centered on the center to obtain a uniformly mixed and morphologically stable activated sludge sample; in the embodiment of the present invention, by placing the obtained activated sludge sample in a collection container and mixing it in a 45° oblique rotation manner centered on the center, this homogenization treatment process greatly improves the representativeness of the sample. Through rotational shaking and mixing, the uneven distribution and agglomeration phenomena in the sludge are eliminated, ensuring the uniformity and stability of the sample. This not only provides a more reliable basis for subsequent analysis, but also improves the accuracy and repeatability of the analysis, providing strong support for the optimization and monitoring of the wastewater treatment system.

[0061] Step 2: Generate microbial composition information in the activated sludge of the aeration tank according to the activated sludge image sample of the aeration tank.

[0062] In this embodiment, the method for generating microbial composition information in the activated sludge of the aeration tank includes:

[0063] Obtain an image sample of the activated sludge of the aeration tank.

[0064] Extract the effective region image with microbial morphological features on the image sample.

[0065] Identify the types and quantities of microorganisms in the sample according to the characteristics of the microorganisms on the effective region image.

[0066] In some embodiments, the sludge at the bottom of the end of the aeration tank is sampled to make a sample, and images are collected at a magnification of 100 - 400 times. After easy recognition processing, images that are easy to observe are obtained; color characteristics extraction, texture characteristics extraction, and shape characteristics extraction are performed based on these easy-to-observe images and compared with single-component standard samples of various representative microorganisms to confirm the microbial composition in the sample.

[0067] The color feature extraction includes a histogram; the pixel values in each segmented region are statistically analyzed to obtain the distribution information of different color channels (such as RGB or HSV). Specifically, the sample sent into the optical microscope can be imaged by an RGB camera in the eyepiece as the detection object, and the RGB image is converted into an HSV image for subsequent analysis;

[0068] The texture feature extraction includes: GLCM features; calculating the Gray-Level Co-occurrence Matrix features of each region, including energy, contrast, uniformity, etc., to describe the texture information.

[0069] The shape feature extraction includes: contour features; extracting the contour features of each segmented region, such as size, shape, and biological structures such as spores, capsules, and flagella, so as to extract the morphological characteristics of microorganisms in the image.

[0070] Furthermore, various microorganisms can be classified and counted based on the SVM and decision tree models to obtain the information on the composition of microorganisms in the activated sludge of the aeration tank.

[0071] In a preferred embodiment, the image samples of the activated sludge in the aeration tank can be multiple frames of continuously collected activated sludge images, so as to perform motion analysis on each frame of the image, etc., so as to better obtain the motion characteristics of microorganisms in the activated sludge, so as to generate more accurate information on the composition of microorganisms in the activated sludge of the aeration tank.

[0072] It should be noted that a large number of studies have confirmed that the diversity and abundance of microorganisms in activated sludge in sewage treatment are important parameters for controlling sewage treatment. These parameters can be used to evaluate the operating status of sewage treatment plants and the purification degree of sewage, especially the protozoa, metazoa, bacteria, and algae in the activated sludge. By observing the types and quantities of microorganisms that appear under different operating states according to the basic laws between the types and quantities of microorganisms in the activated sludge and the adaptation to the hydrobiochemical environment, the operating status of the aeration tank of the sewage treatment plant can be judged. The microorganisms are active microorganisms, such as filamentous bacteria, spherical bacteria, Vorticella, Epistylis, amoeba, rotifer, nematode, and oligochaete.

[0073] Step 3: Generate evaluation information on the properties of the activated sludge according to the effluent water quality information of the sedimentation tank, the information on the composition of microorganisms in the activated sludge of the aeration tank, and the preset water quality evaluation system;

[0074] In this embodiment, the water quality information of the effluent from the sedimentation tank is combined with a preset water quality evaluation system to judge the current effluent water quality, and then it is used to prove by contradiction whether the microbial composition in the activated sludge of the current aeration tank is qualified. This can realize the real-time monitoring of the operation status of the activated sludge process system, and avoid the mechanical operation method of using a fixed microbial composition system standard for judgment, which may lead to difficulties in timely detecting problems in case of emergencies. The water quality evaluation system should be determined by comprehensively considering the types of wastewater influent and discharge standards, such as the Discharge Standard of Water Pollutants for the Iron and Steel Industry GB 13456—2012, the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants GB 18918-2002, the Discharge Standard of Water Pollutants for the Pesticide Industry GB 21523—2024, the Discharge Control Standard for Water Pollutants from Ships GB 3552-2018, etc.; for municipal sewage, COD, SS, total nitrogen, ammonia nitrogen, total phosphorus, chromaticity, and PH can be selected, etc.

[0075] Step 4: Repeatedly obtain the evaluation information of the activated sludge properties, store the evaluation information of the activated sludge properties generated each time, and generate an activity standard database for biochemical sludge.

[0076] By obtaining a large amount of evaluation information of the activated sludge properties to enrich the activity standard database of the biochemical sludge, a more targeted, timely, and better data-matched activity standard database of the biochemical sludge can be obtained, which can effectively cope with different sewage situations.

[0077] It should be noted that whether the evaluation information of the activated sludge properties is qualified or not, it should be stored in the activity standard database of the biochemical sludge. For the unqualified evaluation information of the activated sludge properties, it can be negatively feedback optimized through manual operation after acquisition to make the subsequent obtained evaluation information meet the qualified standard. A computer learning model can also be established synchronously. For different evaluation information of the activated sludge properties and negative feedback optimization, deep learning is carried out to establish a control model, so that after obtaining unqualified evaluation information of the activated sludge properties, it can be adaptively adjusted according to the learned negative feedback optimization operation, thus realizing the full-automatic operation control of the process.

[0078] Reference Figure 2 , the second embodiment of the present invention provides a control method for the activated sludge process, including the following steps:

[0079] Step 1: Obtain the evaluation information of the activated sludge properties;

[0080] In this embodiment, single - component standard samples of various representative microorganisms are collected. Initial samples of activated sludge images in the aeration tank are collected at magnifications of 100 - 400. Through grayscale conversion, filtering for noise reduction, and enhancement of contrast and sharpness, activated sludge image samples in the aeration tank that are easy to observe are obtained. Further, morphological characteristics of microorganisms in the image are extracted based on size, shape, and biological structures such as spores, capsules, and flagella. Texture characteristics and color characteristics are extracted through GLCM (Gray - Level Co - occurrence Matrix) and histograms, etc. Further, at magnifications of 100 - 400, images of activated sludge samples at the end of the aeration tank are collected and recognized. Through SVM (Support Vector Machine) and decision tree models, various microorganisms are classified and counted, and finally, information on the microbial composition in the activated sludge of the aeration tank is obtained;

[0081] Obtain the water quality information of the effluent from the sedimentation tank after a preset time for the activated sludge image samples in the aeration tank. According to the preset water quality evaluation system, judge the situation of the effluent water quality, so as to evaluate the information on the microbial composition in the activated sludge of the aeration tank and generate evaluation information on the properties of the activated sludge. This evaluation information includes the information on the microbial composition in the activated sludge of the aeration tank and the judgment result. This judgment result is to synchronously determine the pass or fail of the microbial population corresponding to the pass or fail of the effluent water quality. For example, if the water quality is qualified, the corresponding microbial population structure is set as qualified; otherwise, the population structure is unqualified. Furthermore, store this evaluation information on the properties of the activated sludge and construct an active standard database for biochemical sludge; this judgment method better meets the actual operation requirements;

[0082] Step 2: Match the evaluation information on the properties of the activated sludge with the data in the active standard database of the biochemical sludge; implement negative - feedback optimization of the operating conditions of the activated sludge system for the evaluation information on the properties of the activated sludge that does not match the active standard database of the biochemical sludge.

[0083] In this embodiment, the evaluation information on the properties of the activated sludge is matched with the data in the active standard database of the biochemical sludge to determine whether the evaluation information on the properties of the activated sludge is qualified. If it is unqualified, negative - feedback optimization is performed on it. This negative - feedback optimization can be done manually or by a computer model; preferably, in the initial stage of operation, since the data in the database is relatively incomplete, manual inspection and correction can be performed on the unqualified evaluation information on the properties of the activated sludge to avoid imbalance caused by excessive deviation of the initially set optimization logic and signal strength.

[0084] In one embodiment, the optimizable items of the operating conditions of the activated sludge system include at least one of aeration time, aeration volume, stirring intensity, sludge return ratio, or influent water volume.

[0085] Among them, the length of the aeration time directly affects the dissolved oxygen content and the activity of microorganisms in the aeration tank. For example, too long an aeration time will result in too high a dissolved oxygen content in the aeration tank. Although high dissolved oxygen is beneficial to the metabolic activities of microorganisms, too high a dissolved oxygen content will also cause the microorganisms to grow too fast, produce too much biological sludge, increase the difficulty of sludge treatment, and may lead to the blockage of the aeration tank, affecting the aeration effect. In addition, it will also increase energy consumption and reduce the economy of water treatment. Too short an aeration time will result in insufficient dissolved oxygen content in the aeration tank, limit the metabolic activities of microorganisms, and reduce their efficiency in removing pollutants. At the same time, insufficient dissolved oxygen will also make the sedimentation performance of the biological sludge in the aeration tank worse, increasing the difficulty of the subsequent treatment process;

[0086] The amount of aeration directly affects the concentration of dissolved oxygen in the aeration tank, and thus affects the activity and quantity of microorganisms. For example, when the amount of aeration increases, the oxygen demand of the aeration tank will increase correspondingly, and the concentration of dissolved oxygen in the tank will increase, which is beneficial to the metabolic activities of microorganisms. However, too high an amount of aeration will also increase energy consumption. Insufficient aeration will lead to insufficient dissolved oxygen content in the aeration tank, affect the activity of microorganisms, and reduce the sewage treatment efficiency.

[0087] The stirring intensity mainly affects the oxygen content, reaction efficiency and treatment effect in the aeration tank by influencing the size, distribution and residence time of bubbles. For example, too low a stirring intensity will result in larger bubbles, uneven distribution and short residence time, leading to insufficient reaction and reduced pollutant removal effect. Although too high a stirring intensity can increase the dispersion degree of bubbles, it will also increase energy consumption and may damage the sediment in the aeration tank, resulting in deterioration of the effluent water quality.

[0088] The sludge return ratio is the ratio of the flow rate of the returned sludge to the influent flow rate of the aeration tank, which has an important impact on the operation effect of the aeration tank. For example, increasing the sludge return ratio can increase the concentration of microorganisms in the aeration tank and enhance the system's ability to resist organic shock loads. At the same time, it is beneficial to inhibit the occurrence of activated sludge aging phenomenon under low load conditions and avoid the too long residence time of activated sludge in the secondary sedimentation tank. However, too high a return ratio may also lead to an increase in energy consumption. Reducing the sludge return ratio can reduce the flow rate of the returned sludge and reduce energy consumption. However, in some cases, such as when the influent sewage has a high organic matter concentration or a large water volume, too low a return ratio may result in insufficient concentration of microorganisms in the aeration tank, affecting the sewage treatment efficiency.

[0089] The change in the influent water volume directly affects the operating load of the aeration tank and the living environment of microorganisms. For example, an increase in the influent water volume will reduce the MLSS (Mixed Liquor Suspended Solids Concentration) in the aeration tank because part of the activated sludge will be transferred to the secondary sedimentation tank. At this time, it is necessary to increase the reflux ratio to increase the MLSS in the aeration tank and maintain the normal sewage treatment efficiency. At the same time, an increase in the influent water volume may also lead to an increase in the hydraulic load of the secondary sedimentation tank, increasing the possibility of sludge loss. A decrease in the influent water volume will reduce the operating load of the aeration tank and improve the living environment of microorganisms; however, too low an influent water volume may also cause the microorganisms in the aeration tank to die or go dormant due to lack of nutrients.

[0090] By using the activity standard database of biochemical sludge storing a large amount of evaluation information on the properties of activated sludge and the real-time biota detection result negative feedback regulation system operating conditions, the present invention has stronger timeliness, can make the operating conditions continuously tend to the ideal operating point, significantly reduce the risk of system imbalance, and reduce labor costs.

[0091] The regulation method of the activated sludge process provided by the present invention shows significant beneficial effects, which are mainly reflected in the following aspects:

[0092] First of all, by obtaining the evaluation information on the properties of activated sludge and matching it with the activity standard database of biochemical sludge, the present invention realizes the accurate judgment of the state of activated sludge. This matching mechanism can quickly identify the activated sludge that does not meet the standards, thus triggering negative feedback optimization in a timely manner, effectively avoiding the problem of low sewage treatment efficiency caused by insufficient or excessive sludge activity.

[0093] Secondly, the process of constructing the activity standard database of biochemical sludge is scientific and comprehensive. By obtaining the image samples of the activated sludge in the aeration tank and the effluent water quality information of the subsequent sedimentation tank, combining the microorganism composition information and the water quality evaluation system, the evaluation information that can accurately reflect the sludge activity can be generated. Repeating this process multiple times and storing the evaluation information generated each time, a rich and reliable database is finally formed, providing a solid foundation for subsequent matching and optimization.

[0094] In addition, this method also reflects the characteristics of intelligence and automation. By automatically collecting and analyzing data, it reduces manual intervention, improves work efficiency and accuracy. At the same time, this intelligent regulation method also helps to achieve the continuity and stability of the sewage treatment process, providing strong technical support for the environmental protection cause.

[0095] In summary, this regulation method of the activated sludge process not only improves the efficiency and quality of sewage treatment, but also realizes intelligent and automated management, which is of great significance for promoting the development of the environmental protection cause.

[0096] For further reference Figure 3, as an implementation of the methods shown in the above figures, the present invention provides some embodiments of a regulation system for an activated sludge process. These device embodiments correspond to Figure 1 the method embodiments shown, and the regulation system for the activated sludge process can be specifically applied to various electronic devices.

[0097] As Figure 3 shown, a regulation system 10 for an activated sludge process in some embodiments includes: a first acquisition unit 11, a second acquisition unit 12, a first generation unit 13, a second generation unit 14, a regulation unit 15, and a storage unit 16. Among them, the first acquisition unit 11 is configured to acquire an image sample of activated sludge in an aeration tank; the second acquisition unit 12 is configured to acquire the water quality information of the effluent from a sedimentation tank after a preset time from the acquisition of the image sample of the activated sludge in the aeration tank; the first generation unit 13 is configured to generate information on the microbial composition in the activated sludge in the aeration tank according to the image sample of the activated sludge in the aeration tank; the second generation unit 14 is configured to generate information on the evaluation of the properties of activated sludge according to the water quality information of the effluent from the sedimentation tank, the information on the microbial composition in the activated sludge in the aeration tank, and a preset water quality evaluation system; the regulation unit 15 is configured to perform a negative feedback optimization of the operating conditions of the activated sludge system on the aeration tank corresponding to the information on the evaluation of the properties of activated sludge that does not meet the standard when matched with the active standard database of the biochemical sludge; the storage unit 16 is configured to store the information on the evaluation of the properties of activated sludge generated each time.

[0098] It can be understood that the various units described in the regulation system 10 for the activated sludge process correspond to the respective steps in the method described with reference to Figure 1 description. Therefore, the operations, features, and beneficial effects described above for the method also apply to the regulation system 10 for the activated sludge process and the units included therein, and will not be repeated here.

[0099] Next, refer to Figure 4 , which shows a schematic structural diagram of an electronic device (for example, a computing device) 20 suitable for implementing some embodiments of the present invention. Figure 4 The electronic device shown is only an example and should not impose any limitations on the functions and usage scope of the embodiments of the present invention.

[0100] As Figure 4As shown, the electronic device 20 may include a processing device (such as a central processing unit, a graphics processing unit, etc.) 21, which may perform various appropriate actions and processes according to a program stored in the read-only memory 22 or a program loaded from the storage device 28 into the random access memory 23. In the random access memory 23, various programs and data required for the operation of the electronic device 20 are also stored. The processing device 21, the read-only memory 22, and the random access memory 23 are connected to each other through a bus 24. The input / output interface 25 is also connected to the bus 24.

[0101] Generally, the following devices may be connected to the I / O interface 25: an input device 26 including, for example, a touch screen, a touchpad, a keyboard, a mouse, a camera, a microphone, an accelerometer, a gyroscope, etc.; an output device 37 including, for example, a liquid crystal display (LCD), a speaker, a vibrator, etc.; a storage device 28 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 29. The communication device 29 may allow the electronic device 20 to communicate with other devices wirelessly or wireline to exchange data. Although Figure 4 the electronic device 20 with various devices is shown, it should be understood that it is not required to implement or have all the shown devices. Instead, more or fewer devices may be implemented or had. Figure 4 Each block shown in may represent one device or, as needed, multiple devices.

[0102] Specifically, according to some embodiments of the present invention, the processes described above with reference to the flowcharts may be implemented as computer software programs. For example, some embodiments of the present invention include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program contains program codes for performing the methods shown in the flowcharts. In such some embodiments, the computer program may be downloaded and installed from a network through the communication device 39, or installed from the storage device 38, or installed from the read-only memory 32. When the computer program is executed by the processing device 31, the above functions defined in the methods of some embodiments of the present invention are executed.

[0103] It should be noted that the computer-readable medium described in some embodiments of the present invention may be a computer-readable signal medium, a computer-readable storage medium, or any combination of the two. A computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the above. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In some embodiments of the present invention, a computer-readable storage medium may be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In some embodiments of the present invention, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, which carries computer-readable program code. Such a propagated data signal may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device. The program code contained on a computer-readable medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (radio frequency), etc., or any suitable combination of the above.

[0104] In some embodiments, the client and the server can communicate using any currently known or future-developed network protocol such as HTTP (Hyper Text Transfer Protocol), and can be interconnected with digital data communication in any form or medium (e.g., a communication network). Examples of communication networks include local area networks ("LANs"), wide area networks ("WANs"), the Internet (e.g., the Internet), and end-to-end networks (e.g., ad hoc end-to-end networks), as well as any currently known or future-developed networks.

[0105] The above computer-readable medium may be included in the above electronic device; or it may exist independently without being assembled into the electronic device. The above computer-readable medium carries one or more programs. When the one or more programs are executed by the electronic device, the electronic device is caused to: obtain an image sample of the activated sludge in the aeration tank; obtain the water quality information of the effluent from the sedimentation tank after a preset time from the obtained image sample of the activated sludge in the aeration tank; generate information on the microbial composition in the activated sludge in the aeration tank based on the above image sample of the activated sludge in the aeration tank; generate evaluation information on the properties of the activated sludge based on the above water quality information of the effluent from the sedimentation tank, the information on the microbial composition in the activated sludge in the aeration tank, and a preset water quality evaluation system; implement negative feedback optimization of the operating conditions of the activated sludge system for the aeration tank corresponding to the evaluation information on the properties of the activated sludge that does not pass the matching with the activated standard database of the biochemical sludge; and store the evaluation information on the properties of the activated sludge generated each time.

[0106] Computer program code for performing the operations of some embodiments of the present invention may be written in one or more programming languages or combinations thereof. The above programming languages include object-oriented programming languages such as Java, Smalltalk, C++, and also include conventional procedural programming languages such as the "C" language or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, executed as a stand-alone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (for example, by connecting through the Internet using an Internet service provider).

[0107] The flowcharts and block diagrams in the accompanying drawings illustrate the possible architectures, functions, and operations of systems, methods, and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagram may represent a module, a program segment, or a part of code that contains one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than marked in the accompanying drawings. For example, two consecutive blocks shown may actually be executed substantially in parallel, and they may sometimes be executed in the reverse order, depending on the functions involved. It should also be noted that each block in the block diagram and / or flowchart, and the combination of blocks in the block diagram and / or flowchart, may be implemented by a dedicated hardware-based system for performing the specified functions or operations, or may be implemented by a combination of dedicated hardware and computer instructions.

[0108] The units described in some embodiments of the present invention can be implemented in software or in hardware. The described units can also be provided in a processor. For example, it can be described as: a processor includes an acquisition unit, a first generation unit, a second generation unit, a first determination unit, a third generation unit, a second determination unit, and a fourth generation unit. Among them, the names of these units do not constitute a limitation on the unit itself in some cases. For example, the first generation unit can also be described as "the unit for acquiring the image sample of the activated sludge in the aeration tank".

[0109] The functions described above herein can be performed, at least in part, by one or more hardware logic components. For example, without limitation, exemplary types of hardware logic components that can be used include: Field Programmable Gate Array (FPGA), Application Specific Integrated Circuit (ASIC), Application Specific Standard Product (ASSP), System on Chip (SOC), Complex Programmable Logic Device (CPLD), and so on.

[0110] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A control method for an activated sludge process, comprising: Obtaining activated sludge property evaluation information; Matching the activated sludge property evaluation information with data in a biochemical sludge activity standard database; Implementing negative feedback optimization of the operating conditions of the activated sludge system for the activated sludge property evaluation information that fails to match the activity standard database of the biochemical sludge; The method for constructing the activity standard database of the biochemical sludge comprises: Obtaining activated sludge image samples from an aeration tank and water quality information of effluent from a sedimentation tank after the activated sludge image samples from the aeration tank have been obtained for a preset time; Generating microbial composition information in the aeration tank activated sludge according to the aeration tank activated sludge image sample; Generate activated sludge property evaluation information based on the effluent quality information of the sedimentation tank, the microbial composition information in the activated sludge of the aeration tank and a preset water quality evaluation system; The activated sludge property evaluation information is repeatedly obtained, and the activated sludge property evaluation information generated each time is stored to generate an activity standard database of biochemical sludge.

2. The control method of the activated sludge process according to claim 1, characterized in that: Methods for obtaining image samples of activated sludge in aeration tanks include: Collect activated sludge samples at the end of the aeration tank; capturing an image of the activated sludge sample; The collected images are processed for easy identification to obtain the activated sludge image samples of the aeration tank.

3. The control method of the activated sludge process according to claim 2, characterized in that: The easy-to-identify processing includes at least one of grayscale correction, denoising, sharpening, edge enhancement, or contrast enhancement.

4. The control method of the activated sludge process according to claim 2, characterized in that: Pre-treat the activated sludge samples collected from the aeration tank; The pretreatment includes a shaking homogenization treatment.

5. The control method of the activated sludge process according to claim 1, characterized in that: Methods for generating information on the microbial composition of activated sludge in aeration tanks include: Obtain image samples of activated sludge in aeration tanks; Extracting an effective area image with microbial morphological features on the image sample; The types and quantities of the microorganisms in the sample are identified according to the characteristics of the microorganisms on the effective area image.

6. The control method of the activated sludge process according to claim 1, characterized in that: The preset time is the time it takes for water to flow from the sampling point of the aeration tank to the water quality sampling point of the sedimentation tank.

7. The control method of the activated sludge process according to claim 1, characterized in that: The optimizable items of the activated sludge system operating conditions include at least one of aeration time, aeration volume, stirring intensity, sludge return ratio, or incoming water volume.

8. A control system for an activated sludge process, comprising: A first acquisition unit is configured to acquire an image sample of activated sludge in an aeration tank; A second acquisition unit is configured to acquire the water quality information of the effluent from the sedimentation tank after a preset time from the activated sludge image sample of the aeration tank; A first generating unit is configured to generate microbial composition information in the activated sludge in the aeration tank according to the activated sludge image sample in the aeration tank; The second generating unit is configured to generate activated sludge property evaluation information according to the effluent quality information of the sedimentation tank, the microbial composition information of the activated sludge in the aeration tank and a preset water quality evaluation system; A control unit is configured to implement negative feedback optimization of the operating conditions of the activated sludge system for the aeration tank corresponding to the activated sludge property evaluation information that fails to match the activity standard database of the biochemical sludge; The storage unit is configured to store the activated sludge property evaluation information generated each time.

9. An electronic device, comprising: one or more processors; a storage device having one or more programs stored thereon; When the one or more programs are executed by the one or more processors, the one or more processors implement the control method as claimed in claim 7.

10. A computer readable medium having a computer program stored thereon, wherein: When the computer program is executed by a processor, the control method according to claim 7 is implemented.

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