A system for sewage treatment process

Abstract

The present invention discloses a system for sewage treatment process, which relates to the technical field of sewage monitoring. A system for sewage treatment process includes a disc rotatably connected with a turntable, and further includes: a plurality of suction pipes respectively installed on the disc in a circumferential shape; The device and the system are cleaned by a dual-mode of gas backwashing pipe + water flushing, which can further reduce the residue in the suction pipes and the insertion pipes, effectively avoid cross-contamination. By separately arranging multiple suction pipes and connecting them to the insertion pipes individually, the cross-mixing of residual liquids is further reduced, and the accuracy of the water sample during water sample collection is improved; And it can automatically match a suitable cleaning method according to the water sample detection data each time, which can reduce costs while improving the detection efficiency. Using a physical cleaning method instead of chemical cleaning can reduce the use of chemical reagents, and at the same time, it can also judge whether the cleaning wire is broken according to data comparison.

Description

Technical Field

[0001] The present invention belongs to the technical field of sewage monitoring, and specifically relates to a system for sewage treatment process. Background Art

[0002] In the sewage treatment process, anaerobic tanks, aerobic tanks, anoxic tanks, sedimentation tanks and other tanks constitute the core units of biological treatment. The real-time monitoring of their water quality parameters is directly related to the process control effect. Therefore, how to accurately obtain water quality parameters is a crucial task in the sewage treatment process;

[0003] In the prior art, to realize water quality monitoring in multiple treatment tanks, a water extraction pipe is placed in each of the multiple treatment tanks respectively, and an electric valve is installed on each water extraction pipe to control the opening and closing of the water extraction pipe. The multiple water extraction pipes are connected to a sampling pipe, and a pump body is connected to the sampling pipe. When it is necessary to pump water and take samples from a certain treatment tank, the electric valve on the water extraction pipe is opened, and then the pump body is started, so that the water in the treatment tank can be pumped out and discharged into an on-line monitor for detection, and the detected water sample can be discharged (refer to the appendix Figure 4 ); however, the above technical solution has defects. Since the multiple water extraction pipes are all connected to one sampling pipe, when pumping water through a certain water extraction pipe, the pumped water will be mixed with the water remaining in other water extraction pipes and the sampling pipe, resulting in inaccurate water samples taken. Therefore, a system for sewage treatment process is proposed. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a system for sewage treatment process that can overcome the above problems or at least partially solve the above problems.

[0005] To solve the above technical problem, the basic concept of the technical solution adopted by the present invention is: A system for sewage treatment process includes a disc rotatably connected with a turntable, and further includes: a plurality of suction pipes respectively installed on the disc in a circumferential shape, an electric valve is provided on each suction pipe, and a filter is installed at the end of each suction pipe; an insertion pipe arranged vertically on the turntable, one end of the insertion pipe is vertically oriented towards the disc; a pump body connected to the insertion pipe, a solenoid valve is provided at the water outlet end of the pump body, and an empty discharge pipe is provided on the solenoid valve of one path; a detector, the other path of the solenoid valve leads to the detector; a discharge pipe for discharging the water sample detected by the detector; an air pipe and a water pipe, both are connected to the insertion pipe, and are used to clean the inside of the suction pipe and the insertion pipe before and after sampling by the suction pipe.

[0006] Preferably, an electric push rod is installed on the turntable, and the execution end of the electric push rod is connected to the cannula; a first sensor is installed on the disc at each suction pipe, and a second sensor is installed on the turntable.

[0007] Further, a cleaning wire is arranged in the suction pipe to be disturbed in the suction pipe by driving with gas or liquid or gas-liquid.

[0008] Preferably, the cleaning wire includes a silk thread and a folded line portion arranged in the middle of the silk thread.

[0009] Preferably, the cleaning wire includes a silk thread and bilateral arc portions arranged in the middle of the silk thread.

[0010] Preferably, the cleaning wire includes a silk thread and a unilateral arc portion arranged in the middle of the silk thread.

[0011] Preferably, the cleaning wire includes a silk thread and a spiral portion arranged in the middle of the silk thread.

[0012] A system for sewage treatment process, comprising:

[0013] Collection module: Obtain the water quality detection data in each pool to form a time series data set;

[0014] Error verification module: Generate the pollutant concentration threshold interval of each sewage pool according to historical data ;

[0015] Cleaning strategy generator: Execute the following control logic:

[0016] (1), When , trigger the trachea cleaning mode, and the cleaning time is seconds, where is the current detection value, is the value of the previous cycle;

[0017] (2), When , trigger the gas-water mixed cleaning mode, and the cleaning time is seconds, = 1.5 ;

[0018] (3), When , activate the fault diagnosis protocol and extend the cleaning duration to , is the cleaning time;

[0019] Processing control module: Convert the cleaning instruction into control signals for the trachea, water pipe, solenoid valve and electric valve.

[0020] Preferably, the error verification module includes:

[0021] Package the continuous N - time detection data into the Y1 data packet, ;

[0022] Calculate the standard deviation of the Y1 data packet , and generate a device failure warning when ;

[0023] Dynamically adjust the threshold interval of the subsequent cycle according to the σ value: , , where is the mean value of the Y1 data packet.

[0024] Preferably, the fault diagnosis protocol includes:

[0025] When there are 3 consecutive times in the Y1 data packet, locate the fault of the cleaning wire in the target suction pipe;

[0026] Judge the degree of air - pump efficiency attenuation according to the ratio Pt / T of the tracheal pressure sensor data Pt to the actual cleaning duration T. When the ratio of Pt / T is less than 80% of the rated efficiency value of the air pump under standard working conditions, trigger a maintenance instruction.

[0027] Preferably, the air - water mixed cleaning mode performs the following steps:

[0028] Phase 1: 0 - 0.3 time period, blow - purge in a pulsed manner with a 0.5 MPa air pressure;

[0029] Phase 2: 0.3 -0.7 time period, switch to air - water alternating pulses;

[0030] Phase 3: 0.7 - time period, pure - water flushing.

[0031] Furthermore, it also includes: Store the standard spectral curves of each cell in the detector. When the correlation coefficient between the real - time detected spectrum and the standard curve, automatically perform the following operations: a. Start the enhanced cleaning mode; b. Resample and update the standard spectral curve; c. When the calibration fails 3 consecutive times, lock the current suction pipe and switch to the standby pipeline.

[0032] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: The device and system can further reduce the residue in the suction pipe and the intubation tube through the dual-mode cleaning of the gas backflush tube + water flushing, effectively avoiding cross-contamination. By separately arranging multiple suction pipes and connecting them to the intubation tube individually, the cross-mixing of the residual liquid is further reduced, improving the accuracy of the water sample during water sample collection. And it can automatically match the appropriate cleaning method according to the water sample detection data each time, reducing costs while improving the detection efficiency. Using a physical cleaning method instead of chemical cleaning can reduce the use of chemical reagents, and at the same time, it can also judge whether the cleaning wire is broken based on data comparison. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In the drawings:

[0034] Figure 1 is a schematic structural diagram of a system for sewage treatment process proposed by the present invention;

[0035] Figure 2 is a schematic structural diagram of the folding part, double-sided arc part, single-sided arc part, and spiral part of a system for sewage treatment process proposed by the present invention;

[0036] Figure 3 is a block diagram of a system for sewage treatment process proposed by the present invention;

[0037] Figure 4 is a schematic diagram of the prior art.

[0038] In the figure: 1, disc; 11, motor; 12, suction pipe; 13, filter; 14, electric valve; 15, sensor 1; 2, turntable; 20, sensor 2; 21, electric push rod; 22, intubation tube; 23, trachea; 24, water pipe; 25, pump body; 26, solenoid valve; 261, empty discharge pipe; 27, detector; 271, discharge pipe; 4, cleaning wire; 40, wire; 41, folding part; 42, double-sided arc part; 43, single-sided arc part; 44, spiral part; 45, connecting block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0039] To make the objectives, 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 with reference to the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0040] Embodiment 1: Refer to Figure 1, a system for the sewage treatment process, including a disk 1 rotatably connected with a turntable 2, and further including: a plurality of suction pipes 12 respectively installed on the disk 1 in a circumferential shape, an electric valve 14 is arranged on each suction pipe 12, and a filter 13 is installed at the end of each suction pipe 12; an insertion pipe 22 arranged vertically on the turntable 2, one end of the insertion pipe 22 is vertically oriented towards the disk 1; a pump body 25 connected to the insertion pipe 22, wherein the pump body 25 can adopt a peristaltic pump. According to the working principle of the peristaltic pump, it can make the extraction of the water sample quantity more accurate and facilitate the cleaning of the insertion pipe 22. It should be understood that the connection section between the insertion pipe 22 and the electric push rod 21 is made of hard material, and other parts are made of soft material, so that the peristaltic pump can normally squeeze the insertion pipe 22 to realize the water pumping operation. An electromagnetic valve 26 is arranged at the water outlet end of the pump body 25, and an empty discharge pipe 261 is arranged on the electromagnetic valve 26 of one path; a detector 27, the other path of the electromagnetic valve 26 leads to the detector 27; a discharge pipe 271 for discharging the water sample detected by the detector 27; an air pipe 23 and a water pipe 24, both are connected to the insertion pipe 22, and are used for cleaning the inside of the suction pipe 12 and the insertion pipe 22 before and after sampling the suction pipe 12.

[0041] An electric push rod 21 is installed on the turntable 2, and the execution end of the electric push rod 21 is connected to the insertion pipe 22; a sensor one 15 is installed on the disk 1 at each position of the suction pipe 12, and a sensor two 20 is installed on the turntable 2.

[0042] When this device is in use, by putting a plurality of suction pipes 12 into different pools, when it is necessary to detect the water sample in a certain pool, the turntable 2 is driven to rotate by the motor 11 installed at the bottom of the disk 1, and the sensor two 20 on the turntable 2 senses the suction pipe 12 corresponding to this pool (number the plurality of sensors one 15 to facilitate identification). Subsequently, the insertion pipe 22 is pushed down by the electric push rod 21, so that one end of the insertion pipe 22 is inserted into the corresponding suction pipe 12 (a sealing gasket is arranged on the outer periphery of the insertion pipe 22 to ensure the sealing performance). Subsequently, the electric valve 14 of this suction pipe 12 is opened, and by enabling the air pipe 23 or the water pipe 24 or both the air pipe 23 and the water pipe 24 simultaneously, the inside of the suction pipe 12 and the insertion pipe 22 is cleaned, and thus the preliminary cleaning is carried out on the suction pipe 12 and the insertion pipe 22 before sampling, and the water remaining in the suction pipe 12 and the insertion pipe 22 is discharged;

[0043] It should be understood that when the preliminary cleaning is carried out, the electromagnetic valve 26 makes the insertion pipe 22 communicate with the empty discharge pipe 261, and the water remaining in the insertion pipe 22 is discharged through the empty discharge pipe 261.

[0044] After the preliminary cleaning is completed, the pump body 25 is started, and the water sample is pumped and discharged into the water sample storage box of the detector 27 for detection;

[0045] The detector 27 uses a spectrometer. During detection, the electrodes and the spectral detection rod in the spectrometer are placed in the water sample storage box for detection.

[0046] After the detection is completed, the detected water sample is discharged through the discharge pipe 271 on the water sample storage box;

[0047] Among them, during the preliminary cleaning process, the gas or water or gas-liquid mixture introduced can not only clean the suction pipe 12 and the insertion pipe 22, but also backwash the filter 13. The main function of the filter 13 is to block foreign objects from entering the suction pipe 12 to avoid a large amount of solid foreign objects in the sucked water sample;

[0048] At the same time, when the gas or water or gas-liquid mixture backwashes the filter 13, it can also stir the liquid in the pool to avoid inaccurate water samples caused by the precipitation and static settlement of the liquid in the pool.

[0049] After the detection is completed, the air pipe 23 or the water pipe 24 or both the air pipe 23 and the water pipe 24 are enabled again. Gas or clean water or gas-liquid mixture is discharged into the suction pipe 12 and the insertion pipe 22 again for post-cleaning. The post-cleaning is to empty the residual liquid in the insertion pipe 22, reduce the residual liquid in the insertion pipe 22, avoid the deposition or adhesion of impurities in the liquid on the inner wall of the insertion pipe 22, and at the same time clean the suction pipe 12 again to keep the inner wall of the suction pipe 12 clean.

[0050] Furthermore, the electric valve 14 is installed at the lower end of the suction pipe 12. The electric valve 14 is of a type that can work underwater and has waterproof performance. Further, in order to improve the safety and stability of the electric valve 14 working underwater, a sealing shell is installed on the outer periphery of the suction pipe 12. The sealing shell covers the electric valve 14 to isolate the contact between water and the electric valve 14;

[0051] The electric valve 14 installed at this position can, during the post-cleaning process, when gas is filled into the suction pipe 12, discharge the residual water in the suction pipe 12 into the pool, and then close the electric valve 14, thereby blocking the liquid in the pool from entering the suction pipe 12, and further reducing the influence of the residual water or the dirt attached to the inner wall of the suction pipe 12 on the accuracy of the water sample.

[0052] Example 2: Refer to Figure 1 、 Figure 2 A system for the sewage treatment process is basically the same as that in Example 1. Further: A cleaning wire 4 is arranged in the suction pipe 12 to be driven by gas or liquid or gas-liquid to disturb in the suction pipe 12;

[0053] During the pre-cleaning, post-cleaning, and sampling processes, gases, liquids, and gas-liquid mixtures will all come into contact with the cleaning wire 4, causing impacts and disturbances to the cleaning wire 4. The cleaning wire 4 is installed in the suction pipe 12 through connection blocks 45 provided at both ends. The cleaning wire 4 can be made of stainless steel wire or nitinol wire, which has anti-corrosion effects and can be shaped into the required shape.

[0054] When the cleaning wire 4 is disturbed in the suction pipe 12, it will generate a random path to contact the inner wall of the suction pipe 12, cleaning the dirt attached to the inner wall of the suction pipe 12, further improving the accuracy of water sample collection, and then accurately analyzing the water sample data.

[0055] Preferably, the cleaning wire 4 includes a wire 40 and a folded line portion 41 provided in the middle of the wire 40. The cleaning wire 4 is set by diagonal tension, generating alternating von Karman vortex streets under the impact of the fluid, triggering high-frequency and small-amplitude vibrations, forming local stress concentration at the folding point, generating point-like impact forces, and thus enhancing the cleaning of the inner wall of the suction pipe 12.

[0056] Preferably, the cleaning wire 4 includes a wire 40 and bilateral arc portions 42 provided in the middle of the wire 40. The bilateral arc portions 42 can swing when impacted, thereby enhancing the cleaning of the inner wall of the suction pipe 12.

[0057] Preferably, the cleaning wire 4 includes a wire 40 and a unilateral arc portion 43 provided in the middle of the wire 40. By making the force point deviate to one side of the wire 40, the turbulent flow generated by the swing can be enhanced, thereby enhancing the cleaning of the inner wall of the suction pipe 12 and reducing the interference of dirt on the accuracy of the water sample.

[0058] Preferably, the cleaning wire 4 includes a wire 40 and a spiral portion 44 provided in the middle of the wire 40, inducing the fluid to generate an axial + tangential composite flow. The spiral portion 44 continuously scrapes the inner wall, thereby enhancing the cleaning of the inner wall of the suction pipe 12 and reducing the interference of dirt on the accuracy of the water sample.

[0059] Therefore, through the cooperation of the cleaning wire 4 with gases, water, or gas-liquid mixtures, the accuracy of the water sample during water sample collection is further improved, thereby ensuring the accuracy of the water sample data.

[0060] Example 3: A system for the sewage treatment process, including:

[0061] Collection module: Obtain the water quality detection data in each pool to form a time series data set;

[0062] Error verification module: Generate the pollutant concentration threshold intervals for each sewage pool according to historical data , based on the dynamic threshold calculation of historical data, can effectively eliminate the interference of environmental fluctuations, where this is set by those skilled in the art;

[0063] During data collection, data set processing is also included. The specific steps are:

[0064] S1. When N sets of data are collected continuously, the N sets of data should be smoothed and calibrated;

[0065] S2. Perform error verification on the smoothed data, which is specifically as follows: define an error value , label N groups of data, X1, X2, X3...Xn;

[0066] S3. Should meet Sequential reasoning, that is, the data meets the requirements;

[0067] S4. Directly aspirate the water sample without cleaning.

[0068] Cleaning Strategy Generator: Executes the following control logic:

[0069] (1) When When the air pipe cleaning mode is triggered, the cleaning time is seconds, of which is the current detection value, is the value of the previous cycle, and the current detection value and the value of the previous cycle are obtained by detecting water quality data through the detector 27;

[0070] (2) When When the air-water mixed cleaning mode is triggered, the cleaning time is Second, =1.5 ;

[0071] (3) When , activate the fault diagnosis protocol and extend the cleaning time to , For cleaning time;

[0072] Processing control module: converts the cleaning instruction into control signals for the air pipe 23, the water pipe 24, the solenoid valve 26 and the electric valve 14;

[0073] By comparing and analyzing the test data and selecting appropriate cleaning strategies, the efficiency of early cleaning and later cleaning can be effectively improved, the time spent on cleaning can be reduced, and cleaning costs can be saved.

[0074] The error verification module includes:

[0075] Encapsulate N consecutive detection data into Y1 data packets. ;

[0076] Calculate the standard deviation of the Y1 packet ,when Generate a device fault warning when...

[0077] Dynamically adjust the threshold interval for the subsequent period according to the σ value: , , where is the average value of the Y1 data packet.

[0078] The fault diagnosis protocol includes:

[0079] When there are 3 consecutive times in the Y1 data packet, locate the fault of the cleaning wire 4 in the target suction pipe 12;

[0080] According to the ratio Pt / T of the pressure sensor data Pt of the air pipe 23 to the actual cleaning duration T, judge the attenuation degree of the air pump efficiency. When the ratio of Pt / T is less than 80% of the rated efficiency value of the air pump under standard working conditions, trigger a maintenance instruction;

[0081] By comparing the data, it is possible to effectively judge whether the cleaning wire 4 is broken and whether the air pump is faulty, and thus it is possible to perform timely maintenance to avoid inaccurate water samples due to residual mixing.

[0082] Furthermore, in order to more accurately judge whether the cleaning wire 4 is broken, a water quality detection sensor is installed near the filter 13 of the suction pipe 12 to monitor the water quality data passing through the filter 13. When the measured water quality data is less than the historical data (a, b), it means that the water quality sensor is faulty. When the water quality data is within the historical data (a, b) range, it means that the filter 13 is normal. When the water quality data is greater than the historical data (a, b), it means that the filter 13 is faulty. Therefore, when the water quality data passing through the filter 13 is within the historical data (a, b), but the data measured by the detector 27 is greater than the pollutant concentration threshold interval , it means that the cleaning wire 4 is faulty.

[0083] The air-water mixed cleaning mode performs the following steps:

[0084] Stage 1: 0 - 0.3 During this period, blow with a 0.6 MPa air pressure in a pulsed manner at a frequency of 2 Hz;

[0085] Stage 2: 0.3 - 0.7 During this period, switch to air-water alternating pulses, which can be in the form of an air pressure of 0.3 MPa and a water pressure of 0.2 MPa;

[0086] Stage 3: 0.7 - During this period, rinse with pure water at a water pressure of 0.4 MPa;

[0087] According to different requirements, the inner diameter sizes of the suction pipe 12 and the insertion pipe 22 will be changed. Therefore, including but not limited to the specific selection of the above air pressure and water pressure, it can be actually adjusted according to the inner diameters of the suction pipe 12 and the insertion pipe 22.

[0088] It also includes: storing the standard spectral curves of each pool in the detector 27. When the correlation coefficient between the real-time detected spectrum and the standard curve is as follows, the following operations are automatically performed: a. Start the enhanced cleaning mode; b. Resample and update the standard spectral curve; c. When the calibration fails three times in a row, lock the current suction pipe 12 and switch to the standby pipeline;

[0089] The correlation coefficient R² between the real-time detected spectrum and the standard spectrum is 0.89 < 0.95 threshold;

[0090] Calibration steps:

[0091] S1: Start enhanced cleaning (0.6MPa gas × 30 seconds + 0.4MPa clean water × 20 seconds);

[0092] S2: Resample and obtain new spectral data (R²new = 0.97);

[0093] S3: Update the standard spectral library. If the calibration fails three times in a row, lock the current pipeline.

[0094] Therefore, through the dual-mode cleaning of the gas backflush pipe + water flushing, this device and system can further reduce the residue in the suction pipe 12 and the insertion pipe 22, effectively avoid cross-contamination. By separately arranging multiple suction pipes 12 and connecting them to the insertion pipe 22 individually, the cross-mixing of the residual liquid is further reduced, improving the accuracy of the water sample during water sample collection; and it can automatically match the appropriate cleaning method according to the water sample detection data each time, which can reduce costs while improving the detection efficiency. Using the physical cleaning method instead of chemical cleaning can reduce the use of chemical reagents, and at the same time, it can also judge whether the cleaning wire 4 is broken according to the data comparison.

[0095] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the technical content prompted above within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the present invention.

Claims

1. A system for a sewage treatment process, characterized in that: include: Acquisition module: obtains water quality test data from each pool to form a time series data set; Error verification module: Generate pollutant concentration threshold intervals for each sewage pool based on historical data ; Cleaning Strategy Generator: Executes the following control logic: (1) When When the air pipe cleaning mode is triggered, the cleaning time is seconds, of which is the current detection value, is the value of the previous period; (2) When When the air-water mixed cleaning mode is triggered, the cleaning time is Second, =1.5 ; (3) When , activate the fault diagnosis protocol and extend the cleaning time to , For cleaning time; A processing control module converts the cleaning instruction into a control signal for the air pipe (23), the water pipe (24), the solenoid valve (26) and the electric valve (14); The error checking module comprises: Encapsulate N consecutive detection data into Y1 data packets. ; Calculate the standard deviation of the Y1 packet ,when Generate equipment failure warning when according to The value dynamically adjusts the threshold interval of subsequent cycles: , ,in is the mean value of Y1 data packet; The device used is a multi-point monitoring device for a sewage treatment process, comprising a disc (1) rotatably connected to a rotating disc (2), and further comprising: A plurality of suction pipes (12) are respectively installed on the disc (1) in a circular shape, each of the suction pipes (12) is provided with an electric valve (14), and a filter (13) is installed at the end of each of the suction pipes (12); A plug tube (22) is lifted and arranged on the rotating disk (2), one end of the plug tube (22) being vertically oriented toward the disk (1); A pump body (25) connected to the insert pipe (22), wherein a solenoid valve (26) is provided on the water outlet end of the pump body (25), wherein an empty drain pipe (261) is provided on the solenoid valve (26) of one passage; A detector (27), wherein another passage of the solenoid valve (26) leads to the detector (27); A discharge pipe (271) for discharging the water sample detected by the detector (27); The air pipe (23) and the water pipe (24) are both connected to the cannula (22) and are used to clean the inside of the suction tube (12) and the cannula (22) before and after sampling through the suction tube (12); A cleaning wire (4) is arranged in the suction pipe (12) for causing disturbance in the suction pipe (12) through gas or liquid or gas-liquid driving; The cleaning wire (4) comprises a wire (40) and a folded line portion (41) arranged in the middle of the wire (40).

2. A system for sewage treatment according to claim 1, characterized in that: The fault diagnosis protocol includes: When the Y1 packet is repeated three times in a row When the cleaning wire (4) in the target suction pipe (12) is located, a fault occurs; The degree of air pump efficiency attenuation is determined based on the ratio Pt / T of the air pipe (23) pressure sensor data Pt to the actual cleaning time T. When the ratio Pt / T is less than 80% of the rated efficiency value of the air pump under standard working conditions, a maintenance instruction is triggered.

3. A system for sewage treatment according to claim 2, characterized in that: The air-water mixed cleaning mode performs the following steps: Stage 1: 0-0.3 During the period, the air pressure is 0.5 MPa in pulse mode; Phase 2: 0.3 ~0.7 During the period, switch to air-water alternating pulse; Phase 3: 0.7 ~ During this period, rinse with pure water.

4. A system for sewage treatment according to claim 3, characterized in that: Also includes: The standard spectrum curve of each pool is stored in the detector (27), and the correlation coefficient between the spectrum and the standard curve is detected in real time. When the calibration fails for three consecutive times, the current suction pipe (12) is locked and switched to the backup pipe.

5. A system for sewage treatment according to claim 1, characterized in that: An electric push rod (21) is mounted on the rotating disk (2), and an actuating end of the electric push rod (21) is connected to the insertion tube (22); a sensor 1 (15) is mounted on each suction tube (12) on the disk (1), and a sensor 2 (20) is mounted on the rotating disk (2).

6. A system for sewage treatment according to claim 1, characterized in that: The cleaning wire (4) comprises a wire (40) and double-sided arc portions (42) arranged in the middle of the wire (40).

7. A system for sewage treatment according to claim 1, characterized in that: The cleaning wire (4) comprises a wire (40) and a single-sided arc portion (43) arranged in the middle of the wire (40).

8. A system for sewage treatment according to claim 1, characterized in that: The cleaning wire (4) comprises a wire (40) and a spiral portion (44) arranged in the middle of the wire (40).

Images