CN115403152A - Intelligent sewage purification treatment system - Google Patents
Intelligent sewage purification treatment system Download PDFInfo
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- CN115403152A CN115403152A CN202211359115.0A CN202211359115A CN115403152A CN 115403152 A CN115403152 A CN 115403152A CN 202211359115 A CN202211359115 A CN 202211359115A CN 115403152 A CN115403152 A CN 115403152A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/006—Regulation methods for biological treatment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
- C02F3/303—Nitrification and denitrification treatment characterised by the nitrification
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
- C02F3/305—Nitrification and denitrification treatment characterised by the denitrification
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/42—Liquid level
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/12—Prevention of foaming
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention relates to the field of sewage treatment, in particular to an intelligent sewage purification treatment system, which is provided with a sewage treatment module, a detection module and a control module, realizes automatic control through the control module, adjusts an anoxic tank operation parameter by calculating an anoxic tank sludge floating characteristic parameter, avoids excessive sludge on the premise of ensuring denitrification reaction efficiency, adjusts an aerobic tank operation parameter by calculating an aerobic tank foam characteristic parameter, corrects the aerobic tank operation parameter by calculating a foam chromaticity value, fully ensures microbial biochemical reaction and denitrification effect, adjusts a tap water washing parameter according to the aerobic tank foam characteristic parameter, ensures the aerobic tank foam removal effect, adjusts a secondary sedimentation tank operation parameter by calculating a secondary sedimentation tank sludge characteristic parameter, and corrects the operation parameters of the aerobic tank and the anoxic tank to ensure the optimal sewage treatment effect of the whole system.
Description
Technical Field
The invention relates to the field of sewage treatment, in particular to an intelligent sewage purification treatment system.
Background
A 2 the/O sewage treatment process is characterized in that three different environmental conditions of anaerobic condition, anoxic condition and aerobic condition are organically matched with microbial flora, the process can simultaneously have the functions of removing organic matters, nitrogen and phosphorus, in the aerobic section, nitrobacteria can ammoniate ammonia nitrogen in inflow and organic nitrogen into ammonia nitrogen, the ammonia nitrogen is converted into nitrate through biological nitrification, in the anoxic section, the denitrifying bacteria can carry out internal reflux to bring in nitric acidThe salt is converted into nitrogen through biological denitrification and escapes into the atmosphere, so that the aim of denitrification is fulfilled, phosphorus is released by phosphorus accumulating bacteria in an anaerobic section, easily degradable organic matters such as low-grade fatty acid and the like are absorbed, the phosphorus is excessively absorbed by the phosphorus accumulating bacteria in an aerobic section, the phosphorus is removed through discharging residual sludge, in the process for removing the organic matters by deoxidation and dephosphorization simultaneously, the process flow is simplest, the total hydraulic retention time is shorter than that of other similar processes, and the method is widely applied to the field of sewage treatment.
Chinese patent publication No.: CN 1066988866A, which discloses the following disclosure, the invention relates to an intelligent management system of domestic sewage, the intelligent management system comprises a sewage sedimentation tank, a sewage purification tank, a clean water tank, and a control system; the sewage sedimentation tank is used for collecting domestic sewage and is connected with the sewage purification tank through a submersible pump, and polyaluminium chloride and a liquid level sensor are placed in the sewage sedimentation tank; the sewage purification tank is used for treating harmful substances in the sewage and is connected with the clean water tank through a submersible pump, and microbial colonies, zeolite and a liquid level sensor are put into the sewage purification tank; the clean water tank is used for storing water sources and conveying the water sources to a water using place, a water delivery pump, a reflux pump, a liquid level sensor and a PH detector are arranged in the clean water tank, the reflux pump is connected with the clean water tank and the sewage purification tank, and the water delivery pump is connected with a pipeline of the water using place; the control system is connected with the liquid level sensor, the PH detector, the submersible pump, the reflux pump, the water delivery pump and the electromagnetic valve; the electromagnetic valve is arranged on a pipeline of a water using place. The invention mainly treats the sewage simply and realizes the recycling.
However, the prior art has the following problems:
in the prior art, an automatic sewage purification treatment system which detects the sludge floating of an anoxic tank, the foam of an aerobic tank, the bubbles of a secondary sedimentation tank and the sludge sedimentation ratio and adjusts operation parameters according to a detection result to ensure the sewage treatment effect is lacked.
Disclosure of Invention
In order to solve the above problems, the present invention provides an intelligent sewage purification treatment system, comprising:
the sewage treatment system comprises a sewage treatment module, a sewage treatment module and a sewage treatment module, wherein the sewage treatment module comprises a primary sedimentation tank, an anaerobic tank, an anoxic tank, an aerobic tank and a secondary sedimentation tank which are sequentially connected, a lifting pump is arranged in the primary sedimentation tank to lift sewage to be treated to the anaerobic tank, a stirrer is arranged in the anoxic tank, a plurality of aeration heads connected with a fan are arranged at the bottom of the aerobic tank so that the aeration heads can spray gas, a sludge backflow pipeline is arranged between the secondary sedimentation tank and the anaerobic tank, and a sludge backflow pump is arranged in the sludge backflow pipeline so as to control the sludge backflow ratio;
the detection module comprises a foam thickness detection unit arranged in the aerobic tank, a photographic device arranged on one side of the anaerobic tank, the anoxic tank and the aerobic tank, a flowmeter arranged in the primary sedimentation tank transmission pipeline, and a bubble sensor, a liquid level sensor and a mud level sensor arranged in the secondary sedimentation tank;
the control module is respectively connected with the detection module, the lifting pump, the stirrer, the fan and the sludge reflux pump and completes information exchange in real time;
the control module determines a sludge floating area according to the anoxic tank image acquired by the detection module, and calculates an anoxic tank sludge floating characteristic parameter F according to the area of the sludge floating area so as to judge whether the stirring speed of the stirrer and the hydraulic retention time of the anoxic tank need to be adjusted or not;
the control module calculates a foam characteristic parameter K of the aerobic tank according to the area of the foam area of the aerobic tank and the thickness of the foam, which are acquired by the detection module, so as to judge whether the power of the fan and the sludge retention time of the aerobic tank need to be adjusted, and calculates an average value delta C of chromatic values of all the foam areas so as to judge whether the power of the fan and the sludge retention time of the aerobic tank need to be corrected;
and the control module calculates a sludge characteristic parameter E according to information transmitted by the bubble sensor, the sludge level sensor and the liquid level sensor so as to judge whether the sludge reflux ratio needs to be adjusted or not and whether the power of the fan and the stirring speed of the stirrer need to be corrected or not.
Furthermore, the photographic device shoots the anoxic tank to obtain an anoxic tank image, the control module determines a sludge floating area in the anoxic tank image, and calculates an anoxic tank sludge floating characteristic parameter F according to a formula (1) based on the sludge floating area, wherein,
in the formula (1), S represents the area of the sludge floating area of the anoxic tank, and S0 represents the area of the anoxic tank.
Further, the control module judges whether the stirring speed of the stirrer and the hydraulic retention time of the anoxic tank need to be adjusted or not according to the anoxic tank sludge floating characteristic parameter F, and adjusts the stirring speed of the stirrer and the hydraulic retention time of the anoxic tank to corresponding values according to the judgment result, wherein,
when the F is larger than or equal to F2, the control module judges that the stirring speed of the stirrer and the hydraulic retention time of the anoxic pond need to be adjusted, adjusts the stirring speed of the stirrer to V, sets V = V0+ V1, adjusts the hydraulic retention time of the anoxic pond to Ts, sets Ts = Ts 0 -t S ；
When F1 is less than or equal to F<During F2, the control module judges that the stirring speed of the stirrer and the hydraulic retention time of the anoxic tank do not need to be adjusted, controls the stirring speed of the stirrer to be a preset standard stirring speed V0, and controls the hydraulic retention time of the anoxic tank to be a preset standard anoxic tank hydraulic retention time Ts 0 ；
When F is present<And F1, the control module judges that the stirring speed of the stirrer and the hydraulic retention time of the anoxic pond need to be adjusted, adjusts the stirring speed of the stirrer to V, sets V = V0-V1, adjusts the hydraulic retention time of the anoxic pond to Ts, and sets Ts = Ts 0 +t S ；
Wherein F1 represents a preset first standard sludge floating characteristic comparison parameter, F2 represents a preset second standard sludge floating characteristic comparison parameter, v1 represents a preset first standard stirring speed adjustment amount,t S and (4) representing the adjustment amount of the hydraulic retention time of the preset standard anoxic pond.
Furthermore, the photographic device shoots the aerobic tank to obtain an aerobic tank image, the control module determines a foam area in the aerobic tank image, obtains information transmitted by the foam thickness detection unit, and calculates a foam characteristic parameter K of the aerobic tank according to a formula (2), wherein,
in the formula (2), SE represents the area of the foam area, SE0 represents the area of the aerobic pool, H represents the thickness of the foam, and H0 represents a preset standard foam thickness parameter.
Further, the control module judges whether the power of the fan and the sludge retention time of the aerobic tank need to be adjusted or not according to the foam characteristic parameter K of the aerobic tank, and adjusts the power of the fan and the sludge retention time of the aerobic tank to corresponding values according to the judgment result, wherein,
when K is larger than or equal to K0, the control module judges that the power of the fan and the sludge retention time of the aerobic tank need to be adjusted, adjusts the power of the fan to P, sets P = P0-P1, adjusts the sludge retention time of the aerobic tank to Tw, and sets Tw = Tw 0 -t w1 ；
When K is<And K0, the control module judges that the power of the fan and the sludge retention time of the aerobic tank do not need to be adjusted, controls the power of the fan to be the preset standard fan power P0, and controls the sludge retention time of the aerobic tank to be the preset standard aerobic tank sludge retention time Tw 0 ；
Wherein K0 represents a preset standard aerobic tank foam characteristic contrast parameter, p1 represents a preset first standard fan power adjustment quantity, and t w1 Showing the preset sludge retention time adjustment amount of the first standard aerobic tank.
Further, the control module divides the foam area in the aerobic pool image into a plurality of areas, calculates the colorimetric value C of each area, calculates the average value delta C of the colorimetric values of all the foam areas according to the colorimetric value C of each area and a formula (3), wherein,
in formula (3), ci represents the chroma value corresponding to the ith region, and n represents the number of regions into which the foam region is divided.
Further, the control module compares the average value deltaC of all the colorimetric values of the foam area with a preset standard foam colorimetric comparison parameter deltaC 0 to judge whether the power of the fan and the sludge retention time of the aerobic tank need to be corrected or not, wherein,
when the delta C is more than or equal to the delta C0, the control module judges that the power of the fan and the sludge retention time of the aerobic tank need to be corrected, reduces the current power of the fan by p2, and reduces the current sludge retention time of the aerobic tank by t w2 ；
When the Delta C is less than the Delta C0, the control module judges that the power of the fan and the sludge retention time of the aerobic tank do not need to be corrected, and judges that tap water washing is carried out;
wherein, deltaC 0 represents a preset standard foam chromaticity contrast parameter, p2 represents a preset second standard fan power correction quantity, and t w2 And showing the preset correction quantity of the sludge retention time of the second standard aerobic tank.
Further, still be provided with the running water in the good oxygen pond and wash the unit, the running water washes the unit and includes a plurality of running water shower nozzles to carry out the running water to good oxygen pond and wash, control module control the running water washes the unit and carries out the running water and washes, judges according to good oxygen pond foam characteristic parameter K whether need to the running water shower nozzle wash time and wash the flow and adjust to corresponding value according to the judged result with the washing time and the flow that wash of running water shower nozzle, wherein,
when K is more than or equal to K2, the control module judges that the flushing time and the flushing flow of the tap water spray head need to be adjustedAdjusting the flushing time of the tap water spray head to Tc, and setting Tc = Tc 0 +t c Adjusting the flushing flow of the tap water spray head to Q, and setting Q = Q0+ Q;
when K1 is less than or equal to K<And when K2 is required, the control module judges that the flushing time and the flushing flow of the tap water nozzle do not need to be adjusted, and controls the flushing time of the tap water nozzle to be preset standard flushing time Tc 0 Controlling the flushing flow of the tap water spray head to be a preset standard flushing flow Q0;
when K is<When K1 is reached, the control module judges that the washing time and the washing flow of the tap water spray head need to be adjusted, adjusts the washing time of the tap water spray head to Tc, and sets Tc = Tc 0 -t c Adjusting the flushing flow of the tap water spray head to Q, and setting Q = Q0-Q;
wherein K1 represents the preset first standard aerobic pool foam characteristic contrast parameter, K2 represents the preset second standard aerobic pool foam characteristic contrast parameter, t c And q represents the preset standard tap water flushing time adjustment quantity, and the preset standard tap water flushing flow adjustment quantity.
Further, the control module acquires information transmitted by the bubble sensor, the mud level sensor and the liquid level sensor, and calculates a sludge characteristic parameter E according to a formula (4), wherein,
in the formula (4), B represents the bubble density, B0 represents the preset standard unit volume bubble density comparison parameter, G represents the ratio of the sludge height to the liquid level height of the secondary sedimentation tank, and G0 represents the preset standard sludge sedimentation ratio comparison parameter.
Further, the control module judges whether the sludge reflux ratio needs to be adjusted or not according to the sludge characteristic parameter E, judges whether the power of the fan and the stirring speed of the stirrer need to be corrected or not, adjusts the sludge reflux ratio to a corresponding value according to a judgment result, corrects the power of the fan and the stirring speed of the stirrer to a corresponding value, wherein,
when the E is larger than or equal to the E0, the control module judges that the sludge reflux ratio needs to be adjusted, the power of the fan and the stirring speed of the stirrer need to be corrected, the sludge reflux ratio is adjusted to R, R = R0+ R is set, the current power of the fan is reduced by p3, and the current stirring speed of the stirrer is reduced by v2;
when E is less than E0, the control module judges that the sludge reflux ratio does not need to be adjusted, controls the sludge reflux ratio to be a preset standard sludge reflux ratio comparison parameter R0, and does not need to correct the power of the fan and the stirring speed of the stirrer;
wherein E0 represents a preset standard sludge characteristic contrast parameter, r represents a preset standard sludge reflux ratio adjustment quantity, p3 represents a preset third standard fan power correction quantity, and v2 represents a preset second standard stirring speed correction quantity.
Compared with the prior art, the system is provided with the sewage treatment module, the detection module and the control module, automatic control is realized through the control module, the operation parameters of the anoxic tank are adjusted by calculating the sludge floating characteristic parameter of the anoxic tank, excessive sludge is avoided on the premise of ensuring the denitrification reaction efficiency, the operation parameters of the aerobic tank are adjusted by calculating the foam characteristic parameter of the aerobic tank, the operation parameters of the aerobic tank are corrected by calculating the foam chromaticity value, the microbial biochemical reaction is fully ensured, the denitrification effect is ensured, the tap water washing parameter is adjusted according to the foam characteristic parameter of the aerobic tank, the foam removal effect of the aerobic tank is ensured, the operation parameters of the secondary sedimentation tank are adjusted by calculating the sludge characteristic parameter of the secondary sedimentation tank, and the operation parameters of the aerobic tank and the anoxic tank are corrected, so that the optimal sewage treatment effect of the whole system is ensured.
Particularly, the control module calculates the floating characteristic parameters of sludge in the anoxic tank according to image information shot by the shooting device to adjust the hydraulic retention time of the anoxic tank and the stirring rate of the stirrer, in actual situations, nitrogen is generated due to denitrification reaction of microorganisms in the anoxic tank, the nitrogen can penetrate into the sludge to form bubbles, the sludge floats to the surface of the anoxic tank due to the bubbles wrapped by the sludge, usually, a certain amount of sludge can float to the surface of the anoxic tank, too much sludge can affect the settleability and biochemical efficiency of the sludge, and the floating sludge area on the surface of the anoxic tank represents the degree of the denitrification reaction to a certain extent.
Particularly, the control module of the invention correspondingly calculates the foam characteristic parameters of the aerobic tank according to the foam thickness and area of the surface of the aerobic tank, and adjusts the fan power and the sludge retention time, in the practical situation, the aerobic tank needs to be continuously aerated to provide oxygen, therefore, the invention arranges the aeration head at the bottom of the aerobic tank, and as the aeration head continuously sprays gas, the excessive gas spraying amount can cause part of the gas not to be dissolved in water to form bubbles, and the bubbles formed by aeration are smaller, and can generate a large amount of foam on the surface of the aerobic tank after floating, and the excessive foam can cause a large amount of oxygen to be wrapped to the surface of the aerobic tank, thus causing low oxygen utilization rate, influencing the activity of aerobic microorganisms, and further influencing the sewage treatment effect.
Particularly, the control module calculates the average value of chromatic values of all foam areas to correct the power of the fan and the sludge retention time of the aerobic tank, and adjusts the washing time and the washing flow of the tap water nozzle according to the foam characteristic parameters of the aerobic tank.
Particularly, the control module calculates a sludge characteristic parameter according to the sedimentation ratio of sludge in the secondary sedimentation tank and the bubble density to adjust the sludge reflux ratio, and corrects the power of a fan and the stirring rate of a stirrer, in an actual situation, the sludge sedimentation ratio can represent the sedimentation performance of the sludge, the sludge sedimentation effect is poor due to the low sludge sedimentation ratio in the secondary sedimentation tank, the sludge floats upwards, the amount of activated sludge returned to a sewage treatment system is ensured by increasing the sludge reflux amount, the biochemical effect of the activated sludge is ensured, bubbles in the sludge in the secondary sedimentation tank are caused by the denitrification of microorganisms to generate nitrogen, the aeration amount in the aerobic tank is over large, the nitrification reaction converts ammonia nitrogen into nitrate, the denitrification reaction occurs in the secondary sedimentation tank to generate nitrogen, the bubbles are contained in the sludge, the fan power in the aerobic tank is reduced to reduce the aeration amount, the denitrification reaction is performed in an anoxic state, the stirring rate in the anoxic tank is reduced to reduce the oxygen content in the anoxic tank to enhance the denitrification, the nitrate in the sludge is further consumed, and the operation effect of the system is ensured.
Drawings
FIG. 1 is a schematic structural diagram of an intelligent sewage purification treatment system according to an embodiment of the present invention;
in the figure, 1: primary sedimentation tank, 2: anaerobic tank, 3: anoxic tank, 4: an aerobic tank, 5: secondary sedimentation tank, 6: lift pump, 7: stirrer, 8: a fan, 9: aeration head, 10: imaging device, 11: tap water nozzle, 12: level sensor, 13: grating sensor, 14: bubble sensor, 15: mud level sensor, 16: dredge pump, 17: sludge recirculation pump, 18: sludge discharge valve, 19: a flow meter.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention is further described below with reference to examples; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and do not limit the scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1, which is a schematic structural diagram of an intelligent sewage purification treatment system according to an embodiment of the present invention, the intelligent sewage purification treatment system includes:
the sewage treatment module comprises a primary sedimentation tank 1, an anaerobic tank 2, an anoxic tank 3, an aerobic tank 4 and a secondary sedimentation tank 5 which are connected in sequence, wherein a lifting pump 6 is arranged in the primary sedimentation tank 1 to lift sewage to be treated to the anaerobic tank 2, a stirrer 7 is arranged in the anoxic tank 3, a plurality of aeration heads 9 connected with a fan 8 are arranged at the bottom of the aerobic tank 4 to enable the aeration heads 9 to spray gas, a tap water flushing unit is arranged in the aerobic tank 4 to flush foam on the surface of the aerobic tank 4, the aerobic tank 4 is connected with the secondary sedimentation tank 5 through a sludge pipeline, a sludge discharge valve 18 is arranged in the sludge pipeline to control discharge of sludge in the aerobic tank 4, a sewage discharge pipeline is also arranged in the secondary sedimentation tank 5, a sewage discharge pump 16 is arranged in the sewage discharge pipeline to discharge residual sludge, a sludge return pipeline is arranged between the secondary sedimentation tank 5 and the anaerobic tank 2, and a sludge return pump 17 is arranged in the sludge return pipeline to control a sludge return ratio;
the detection module comprises a foam thickness detection unit arranged in the aerobic pool 4, a photographic device 10 arranged on one side of the anaerobic pool 2, the anoxic pool 3 and the aerobic pool 4, a flow meter 19 arranged in a transmission pipeline of the primary sedimentation pool 1, and a bubble sensor 14, a liquid level sensor 12 and a mud level sensor 15 arranged in the secondary sedimentation pool 5;
the control module is respectively connected with the detection module, the lifting pump 6, the stirrer 7, the fan 8, the sludge reflux pump 17, the sewage pump 16 and the sludge discharge valve 18 and completes information exchange in real time so as to control the rotating speed of the lifting pump 6, adjust the inflow rate, control the stirring speed of the stirrer 7, control the power of the fan 8, adjust the aeration rate, control the sludge reflux pump 17, adjust the sludge reflux ratio, control the sludge discharge valve 18 and adjust the sludge retention time;
the control module determines a sludge floating area according to the anoxic tank image acquired by the detection module, and calculates an anoxic tank sludge floating characteristic parameter F according to the area of the sludge floating area so as to judge whether the stirring speed of the stirrer 7 and the hydraulic retention time of the anoxic tank 3 need to be adjusted or not;
the control module calculates a foam characteristic parameter K of the aerobic tank according to the area of the foam area of the aerobic tank and the thickness of the foam, which are acquired by the detection module, so as to judge whether the power of the fan 8 and the sludge retention time of the aerobic tank 4 need to be adjusted, and calculates an average value delta C of chromatic values of all the foam areas so as to judge whether the power of the fan 8 and the sludge retention time of the aerobic tank 4 need to be corrected;
and the control module calculates a sludge characteristic parameter E according to information transmitted by the bubble sensor, the sludge level sensor and the liquid level sensor so as to judge whether the sludge reflux ratio needs to be adjusted or not and whether the power of the fan 8 and the stirring speed of the stirrer 7 need to be corrected or not.
Specifically, it can be understood by those skilled in the art that the photographing device 10 of the present embodiment may be a CCD camera, a sensor, or the like, and only needs to realize a function of acquiring image information of each pool in real time, and when the photographing device of the present embodiment is installed in each pool, the photographing device may be directly installed on a sidewall of the pool body, or may be installed through an installation bracket, and a specific installation manner may be an adhesion manner, a threaded connection manner, or other connection manner, which is not limited, and certainly, the photographing device 10 of the present embodiment may be a camera module having an image processing function, or may be a combination device of a camera and a processor;
particularly, control module is through control the rotational speed adjustment of elevator pump 6 the inflow in oxygen deficiency pond 3 is through acquireing flowmeter 19's information detection oxygen deficiency pond 3's inflow, and the hydraulic power dwell time in oxygen deficiency pond 3 is the ratio of the effective volume in oxygen deficiency pond 3 and the inflow, through control elevator pump 6's rotational speed reaches the adjustment the hydraulic power dwell time's in oxygen deficiency pond 3 purpose, the effective volume in oxygen deficiency pond 3 is the product of oxygen deficiency pond 3 length and width and depth of water three.
Specifically, foam thickness detecting element is including setting up a plurality of grating sensor 13 and level sensor 12 in the good oxygen pond 4, grating sensor 13 detects foam liquid level height in the good oxygen pond 4, level sensor 12 detects liquid level under the foam in the good oxygen pond 4, control module acquires a plurality of grating sensor 13 and level sensor 12's information calculates the foam height and the difference of liquid level height of corresponding position, and calculates the average value of difference is with the sign foam thickness in the good oxygen pond 4.
Specifically, the control module adjusts the sludge retention time in the aerobic tank 4 by controlling the opening and closing of the sludge discharge valve 18.
Specifically, the tap water washing unit comprises a plurality of tap water spray nozzles 11 arranged in the aerobic tank 4, and the tap water spray nozzles 11 are connected with a tap water tank so as to extract the liquid of the tap water tank to wash the aerobic tank 4 with tap water.
Specifically, the specific form of the bubble sensor 14 is not limited in the present invention, and it is a conventional art, and may be in the form of an ultrasonic bubble sensor, or in other structural forms, and only needs to complete the function of detecting the density of bubbles in the sludge.
Specifically, the control module can be an external computer, and only needs to complete data processing, data receiving and data sending.
Specifically, after the photographic device 10 passes through a preset standard initial anoxic tank reaction time t0, the anoxic tank 3 is photographed to obtain an anoxic tank image, the control module determines a sludge floating area in the anoxic tank image, a sludge floating characteristic parameter F of the anoxic tank is calculated according to a formula (1) according to the sludge floating area, wherein,
in the formula (1), S represents the area of the sludge floating area of the anoxic tank, and S0 represents the area of the anoxic tank.
Specifically, the control module judges whether the stirring speed of the stirrer 7 and the hydraulic retention time of the anoxic tank 3 need to be adjusted according to the anoxic tank sludge floating characteristic parameter F, adjusts the stirring speed of the stirrer 7 and the hydraulic retention time of the anoxic tank 3 to corresponding values according to the judgment result, wherein,
when F is larger than or equal to F2, the control module judges that the stirring speed of the stirrer 7 and the hydraulic retention time of the anoxic pond 3 need to be adjusted, adjusts the stirring speed of the stirrer 7 to V, sets V = V0+ V1, adjusts the hydraulic retention time of the anoxic pond 3 to Ts, sets Ts = Ts 0 -t S ；
When F1 is less than or equal to F<And F2, the control module judges that the stirring speed of the stirrer 7 and the hydraulic retention time of the anoxic tank 3 do not need to be adjusted, and controls the stirring speed of the stirrer 7 to be a preset standard stirring speed V0 of 400r/min<VO<1000r/min, and controlling the hydraulic retention time of the anoxic pond 3 to be the preset standard hydraulic retention time Ts of the anoxic pond 3 0 ，1h<Ts 0 <3h；
When F is present<And F1, the control module judges that the stirring speed of the stirrer 7 and the hydraulic retention time of the anoxic tank 3 need to be adjusted, adjusts the stirring speed of the stirrer 7 to V, sets V = V0-V1, adjusts the hydraulic retention time of the anoxic tank 3 to Ts, and sets Ts = Ts 0 +t S ；
Wherein F1 represents a preset first standard sludge floating characteristic comparison parameter, F2 represents a preset second standard sludge floating characteristic comparison parameter, and 0<F1<F2 V1 represents a preset first standard stirring speed adjustment amount of 150r/min<v1<350r/min，t S The adjustment amount of the hydraulic retention time of the preset standard anoxic pond is shown for 20min<Ts 0 <60min。
Specifically, the control module calculates a floating characteristic parameter of sludge in the anoxic tank according to image information shot by the shooting device 10 to adjust the hydraulic retention time of the anoxic tank 3 and the stirring rate of the stirrer 7, in an actual situation, nitrogen gas is generated by denitrifying microorganisms in the anoxic tank 3 and can enter into the sludge to form bubbles, the sludge floats to the surface of the anoxic tank due to bubbles wrapped by the sludge, a certain amount of sludge generally floats on the surface of the anoxic tank, the sedimentation and biochemical efficiency of the sludge are influenced by too much sludge, and the floating sludge area on the surface of the anoxic tank represents the degree of denitrification reaction to a certain extent.
Specifically, after the photographing device 10 passes through a preset standard initial aerobic tank reaction time t0', the aerobic tank 4 is photographed to obtain an aerobic tank image, the control module determines a foam area in the aerobic tank image, obtains information transmitted by the foam thickness detection unit, and calculates an aerobic tank foam characteristic parameter K according to a formula (2), wherein,
in the formula (2), SE represents the area of the foam area, SE0 represents the area of the aerobic pool,
representing the thickness of the foam, H0 representing a predetermined standard foam thickness parameter, 0<H0<10cm。
Specifically, the control module determines whether the power of the fan 8 and the sludge retention time of the aerobic tank 4 need to be adjusted according to the aerobic tank foam characteristic parameter K, and adjusts the power of the fan 8 and the sludge retention time of the aerobic tank 4 to corresponding values according to the determination result, wherein,
when K is more than or equal to K0, the control module judges that the power of the fan 8 and the sludge retention time of the aerobic tank 4 need to be adjusted, adjusts the power of the fan 8 to P, sets P = P0-P1, adjusts the sludge retention time of the aerobic tank 4 to Tw, and sets Tw = Tw 0 -t w1 ；
When K is<K0, the control module judges that the power of the fan 8 and the sludge retention time of the aerobic tank 4 do not need to be adjusted, and controls the power of the fan 8 to be the preset standard fan power P0, 100KW<P0<300KW, and controlling the sludge retention time of the aerobic tank 4 to be the preset standard sludge retention time Tw of the aerobic tank 0 ，2h<Tw 0 <6h；
Wherein K0 represents a preset standard aerobic tank foam characteristic contrast parameter, and K0>0, p1 represents the preset first standard fan power adjustment, 30KW<p1<100KW，t w1 The sludge retention time adjustment amount of a first standard aerobic tank is preset and is expressed for 40min<t w1 <120min。
Specifically, the control module of the invention correspondingly calculates the foam characteristic parameters of the aerobic tank according to the foam thickness and area of the surface of the aerobic tank 4, and adjusts the power of the fan 8 and the sludge retention time of the aerobic tank 4, in practical situations, the aerobic tank 4 needs to be continuously aerated to provide oxygen, therefore, the invention is provided with the aeration head 9 at the bottom of the aerobic tank 4, and as the aeration head 9 continuously sprays gas, the excessive spraying amount of the gas can cause part of the gas to be not dissolved in water to form bubbles, and the bubbles formed by aeration are smaller, and can generate a large amount of foam on the surface of the aerobic tank 4 after floating, and the excessive foam can cause a large amount of oxygen to be wrapped to the surface of the aerobic tank 4, so that the oxygen utilization rate is low, the activity of aerobic microorganisms is influenced, and the sewage treatment effect is further influenced.
Specifically, the control module divides a foam area in the aerobic pool image into a plurality of areas, calculates a colorimetric value C of each area, calculates an average value delta C of all the colorimetric values of the foam area according to the colorimetric value C of each area and a formula (3), wherein,
in formula (3), ci represents the chroma value corresponding to the ith region, and n represents the number of regions into which the foam region is divided.
Specifically, the control module compares the average value deltaC of all the colorimetric values of the foam area with a preset standard foam colorimetric comparison parameter deltaC 0, and judges whether the power of the fan 8 and the sludge retention time of the aerobic tank 4 need to be corrected or not, wherein,
when the delta C is more than or equal to the delta C0, the control module judges that the power of the fan 8 and the sludge retention time of the aerobic tank 4 need to be corrected, reduces the current power of the fan 8 by p2, and reduces the current sludge retention time of the aerobic tank 4 by t w2 ；
When deltaC is less than deltaC 0, the control module judges that the power of the fan 8 and the sludge retention time of the aerobic tank 4 do not need to be corrected, and judges that tap water washing is carried out;
wherein, deltaC 0 represents a preset standard foam chroma contrast parameter, and DeltaC 0>0, p2 represents the power correction of the preset second standard fan, 10KW<p2<30KW，t w2 The correction quantity of the sludge retention time of a preset second standard aerobic tank is shown for 10min<t w1 <40min。
Specifically, the control module controls the tap water washing unit to wash tap water, judges whether the washing time and the washing flow of the tap water spray head 11 need to be adjusted according to the aerobic pool foam characteristic parameter K, adjusts the washing time and the washing flow of the tap water spray head 11 to corresponding values according to the judgment result, wherein,
when K is more than or equal to K2, the control module judges that the flushing time and the flushing flow of the tap water nozzle 11 need to be adjustedThe time for flushing the tap water nozzle 11 was adjusted to Tc, and Tc = Tc 0 +t c Adjusting the flushing flow of the tap water nozzle 11 to Q, and setting Q = Q0+ Q;
when K1 is less than or equal to K<And when K2 is required, the control module judges that the washing time and the washing flow of the tap water spray head 11 do not need to be adjusted, and controls the washing time of the tap water spray head 11 to be preset standard washing time Tc 0 ，10min<Tc 0 <Controlling the flushing flow of the tap water nozzle 11 to be a preset standard flushing flow Q0,5L/min for 100min<Q0<20L/min；
When K is<K1, the control module determines that the washing time and the washing flow rate of the tap water faucet 11 need to be adjusted, adjusts the washing time of the tap water faucet 11 to Tc, and sets Tc = Tc 0 -t c Adjusting the flushing flow of the tap water nozzle 11 to Q, and setting Q = Q0-Q;
wherein K1 represents a preset first standard aerobic tank foam characteristic contrast parameter, K2 represents a preset second standard aerobic tank foam characteristic contrast parameter, and 0<K1<K2，t c Represents the adjustment amount of the preset standard tap water flushing time for 3min<t c <40min, q represents the flow adjustment of tap water of preset standard, 2L/min<q<10L/min。
Specifically, the control module calculates the average value of all the colorimetric values of the foam areas to correct the power of the fan 8 and the sludge retention time of the aerobic tank 4, and adjusts the flushing time and the flushing flow of the tap water nozzle 11 according to the foam characteristic parameters of the aerobic tank, in an actual situation, the color of the foam of the aerobic tank is dark and is dark brown or gray, which is caused by excessive increment of Nocardia flora, micromyceliums and actinomycetes, the sludge retention time is too long and the aeration amount is too large, the power of the fan 8 is required to be reduced to reduce the aeration amount, the sludge retention time of the aerobic tank 4 is reduced, sludge is timely discharged to prevent sludge from being too long, white foam appears in the aerobic tank 4 indicates that the inlet water contains a large amount of detergent, partial gas is not dissolved in the water to form bubbles due to the aeration effect of the fan 8, the oxygen is floated to the surface of the aerobic tank to form white foam, the utilization rate of the inlet water is required to be controlled to prevent the inlet water containing the detergent from entering and the tap water from being flushed by tap water to eliminate the foam, the foam characteristic parameters of the foam of the aerobic tank 4 are required to represent, and the foam quantity of the aerobic tank 4 is required to be increased and the flushing flow to ensure the flushing effect of removing the aerobic tank.
Specifically, the control module obtains the information transmitted by the bubble sensor 14, the sludge level sensor 15 and the liquid level sensor 12, and calculates the sludge characteristic parameter E according to the formula (4), wherein,
in the formula (4), B represents the bubble density, B0 represents a preset standard unit volume bubble density comparison parameter, B0 is more than 0 and less than 1000, G represents the ratio of the sludge height to the liquid level height of the secondary sedimentation tank, G0 represents a preset standard sludge sedimentation ratio comparison parameter, and G0 is more than 10% and less than 60%.
Specifically, the control module determines whether the sludge reflux ratio needs to be adjusted or not according to the sludge characteristic parameter E, determines whether the power of the fan 8 and the stirring rate of the stirrer 7 need to be corrected or not, adjusts the sludge reflux ratio to a corresponding value according to a determination result, corrects the power of the fan 8 and the stirring rate of the stirrer 7 to a corresponding value, wherein,
when E is larger than or equal to E0, the control module judges that the sludge reflux ratio needs to be adjusted, the power of the fan 8 and the stirring rate of the stirrer 7 need to be corrected, the sludge reflux ratio is adjusted to R, R = R0+ R is set, the current power of the fan 8 is reduced by p3, and the current stirring rate of the stirrer 7 is reduced by v2;
when E is less than E0, the control module judges that the sludge reflux ratio does not need to be adjusted, controls the sludge reflux ratio to be a preset standard sludge reflux ratio comparison parameter R0, controls the sludge reflux ratio to be 10% or less than R0 and 100%, and does not need to correct the power of the fan 8 and the stirring speed of the stirrer 7;
wherein E0 represents a preset standard sludge characteristic contrast parameter, E0 is more than 0, r represents a preset standard sludge reflux ratio adjustment quantity, 5% < r <30%, P3 represents a preset third standard fan power correction quantity, P1 < P2 < P3, 10KW < -p3 < -30KW and v2 represents a preset second standard stirring rate correction quantity, and 150r/min < v2<350r/min.
Specifically, the control module calculates sludge characteristic parameters according to the sedimentation ratio of the sludge in the secondary sedimentation tank 5 and the density of bubbles to adjust the sludge reflux ratio, and corrects the power of the fan 8 and the stirring rate of the stirrer 7, in practical situations, the sludge sedimentation ratio can represent the sedimentation performance of the sludge, the sludge sedimentation effect is poor due to the low sludge sedimentation ratio in the secondary sedimentation tank 5, the sludge floats upwards, the amount of the activated sludge returned to the sewage treatment system is ensured by increasing the sludge reflux amount, the biochemical effect of the activated sludge is ensured, bubbles in the sludge in the secondary sedimentation tank 5 are caused by nitrogen generated by the denitrification of microorganisms, the aeration amount in the aerobic tank 4 is over large, the nitrification reaction converts ammonia nitrogen into nitrate, the denitrification occurs in the secondary sedimentation tank 5 to generate nitrogen, the sludge contains bubbles, the power of the fan 8 in the aerobic tank 4 is reduced to reduce the aeration amount, the stirring rate in the anoxic tank 3 is reduced to consume the nitrate in the sludge reflux, and the operation effect of the system is ensured.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (10)
1. The utility model provides an intelligence sewage purification treatment system which characterized in that includes:
the sewage treatment module comprises a primary sedimentation tank, an anaerobic tank, an anoxic tank, an aerobic tank and a secondary sedimentation tank which are sequentially connected, wherein a lifting pump is arranged in the primary sedimentation tank to lift sewage to be treated to the anaerobic tank, a stirrer is arranged in the anoxic tank, a plurality of aeration heads connected with a fan are arranged at the bottom of the aerobic tank so that the aeration heads can spray gas, a sludge backflow pipeline is arranged between the secondary sedimentation tank and the anaerobic tank, and a sludge backflow pump is arranged in the sludge backflow pipeline so as to control the sludge backflow ratio;
the detection module comprises a foam thickness detection unit arranged in the aerobic tank, a photographic device arranged on one side of the anaerobic tank, the anoxic tank and the aerobic tank, a flow meter arranged in the primary sedimentation tank transmission pipeline, and a bubble sensor, a liquid level sensor and a mud level sensor arranged in the secondary sedimentation tank;
the control module is respectively connected with the detection module, the lifting pump, the stirrer, the fan and the sludge reflux pump and completes information exchange in real time;
the control module determines a sludge floating area according to the anoxic tank image acquired by the detection module, and calculates an anoxic tank sludge floating characteristic parameter F according to the area of the sludge floating area so as to judge whether the stirring speed of the stirrer and the hydraulic retention time of the anoxic tank need to be adjusted or not;
the control module calculates a foam characteristic parameter K of the aerobic tank according to the area of the foam area of the aerobic tank and the thickness of the foam, which are acquired by the detection module, so as to judge whether the power of the fan and the sludge retention time of the aerobic tank need to be adjusted, and calculates an average value delta C of chromatic values of all the foam areas so as to judge whether the power of the fan and the sludge retention time of the aerobic tank need to be corrected;
and the control module calculates a sludge characteristic parameter E according to information transmitted by the bubble sensor, the sludge level sensor and the liquid level sensor so as to judge whether the sludge reflux ratio needs to be adjusted or not and whether the power of the fan and the stirring speed of the stirrer need to be corrected or not.
2. The intelligent sewage purification treatment system according to claim 1, wherein the photographing device photographs the anoxic tank to obtain an anoxic tank image, the control module determines a sludge floating area in the anoxic tank image, and calculates an anoxic tank sludge floating characteristic parameter F according to the sludge floating area and a formula (1), wherein,
in the formula (1), S represents the area of the sludge floating area of the anoxic tank, and S0 represents the area of the anoxic tank.
3. The intelligent sewage purification treatment system according to claim 1, wherein the control module determines whether the stirring rate of the stirrer and the hydraulic retention time of the anoxic tank need to be adjusted according to the anoxic tank sludge floatation characteristic parameter F, and adjusts the stirring rate of the stirrer and the hydraulic retention time of the anoxic tank to corresponding values according to the determination result, wherein,
when the F is larger than or equal to F2, the control module judges that the stirring speed of the stirrer and the hydraulic retention time of the anoxic pond need to be adjusted, adjusts the stirring speed of the stirrer to V, sets V = V0+ V1, adjusts the hydraulic retention time of the anoxic pond to Ts, sets Ts = Ts 0 -t S ；
When F1 is less than or equal to F<During F2, the control module judges that the stirring speed of the stirrer and the hydraulic retention time of the anoxic tank do not need to be adjusted, controls the stirring speed of the stirrer to be a preset standard stirring speed V0, and controls the hydraulic retention time of the anoxic tank to be a preset standard anoxic tank hydraulic retention time Ts 0 ；
When F is<And F1, the control module judges that the stirring speed of the stirrer and the hydraulic retention time of the anoxic pond need to be adjusted, adjusts the stirring speed of the stirrer to V, sets V = V0-V1, adjusts the hydraulic retention time of the anoxic pond to Ts, and sets Ts = Ts 0 +t S ；
Wherein F1 is on the preset first standard sludgeA floating characteristic comparison parameter, F2 represents a preset second standard sludge floating characteristic comparison parameter, v1 represents a preset first standard stirring rate adjustment amount, t S And (4) representing the adjustment amount of the hydraulic retention time of the preset standard anoxic pond.
4. The intelligent sewage purification treatment system according to claim 3, wherein the photographing device photographs the aerobic tank to obtain an image of the aerobic tank, the control module determines a foam area in the image of the aerobic tank and obtains information transmitted by the foam thickness detection unit, and calculates a foam characteristic parameter K of the aerobic tank according to formula (2), wherein,
in the formula (2), SE represents the area of the foam area, SE0 represents the area of the aerobic pool, H represents the thickness of the foam, and H0 represents a preset standard foam thickness parameter.
5. The intelligent sewage purification treatment system according to claim 4, wherein the control module determines whether the power of the fan and the sludge retention time of the aerobic tank need to be adjusted according to the foam characteristic parameter K of the aerobic tank, and adjusts the power of the fan and the sludge retention time of the aerobic tank to corresponding values according to the determination result, wherein,
when K is larger than or equal to K0, the control module judges that the power of the fan and the sludge retention time of the aerobic tank need to be adjusted, adjusts the power of the fan to P, sets P = P0-P1, adjusts the sludge retention time of the aerobic tank to Tw, and sets Tw = Tw 0 -t w1 ；
When K is<And K0, the control module judges that the power of the fan and the sludge retention time of the aerobic tank do not need to be adjusted, controls the power of the fan to be the preset standard fan power P0, and controls the sludge retention time of the aerobic tank to be the preset standard aerobic tank sludge retention time Tw 0 ；
Wherein K0 represents a preset standard aerobic tank foam characteristic contrast parameter, p1 represents a preset first standard fan power adjustment quantity, and t w1 Showing the preset adjustment amount of the sludge retention time of the first standard aerobic tank.
6. The intelligent sewage purification treatment system according to claim 4, wherein the control module divides the foam area in the aerobic tank image into a plurality of areas, calculates the colorimetric values C of the areas, calculates the average value Δ C of the colorimetric values of all the foam areas according to the colorimetric values C of the areas according to formula (3), wherein,
in formula (3), ci represents the chroma value corresponding to the ith region, and n represents the number of regions into which the foam region is divided.
7. The intelligent sewage purification treatment system according to claim 6, wherein the control module compares the average value Δ C of all the colorimetric values of the foam areas with a preset standard foam colorimetric comparison parameter Δ C0 to determine whether the power of the fan and the sludge retention time of the aerobic tank need to be corrected, wherein,
when the delta C is more than or equal to the delta C0, the control module judges that the power of the fan and the sludge retention time of the aerobic tank need to be corrected, reduces the current power of the fan by p2, and reduces the current sludge retention time of the aerobic tank by t w2 ；
When the Delta C is less than the Delta C0, the control module judges that the power of the fan and the sludge retention time of the aerobic tank do not need to be corrected, and judges that tap water washing is carried out;
wherein, deltaC 0 represents a preset standard foam chromaticity contrast parameter, p2 represents a preset second standard fan power correction quantity, and t w2 And showing the preset correction quantity of the sludge retention time of the second standard aerobic tank.
8. The intelligent sewage purification treatment system according to claim 7, wherein a tap water washing unit is further disposed in the aerobic tank, the tap water washing unit comprises a plurality of tap water spray heads for washing the aerobic tank with tap water, the control module controls the tap water washing unit to wash with tap water, determines whether the washing time and the washing flow rate of the tap water spray heads need to be adjusted according to the foam characteristic parameter K of the aerobic tank, and adjusts the washing time and the washing flow rate of the tap water spray heads to corresponding values according to the determination result, wherein,
when K is larger than or equal to K2, the control module judges that the washing time and the washing flow of the tap water spray head need to be adjusted, adjusts the washing time of the tap water spray head to Tc, and sets Tc = Tc 0 +t c Adjusting the flush flow rate of the tap water spray to Q, setting Q = Q0+ Q;
when K1 is less than or equal to K<And when K2 is reached, the control module judges that the flushing time and the flushing flow of the tap water spray head do not need to be adjusted, and controls the flushing time of the tap water spray head to be preset standard flushing time Tc 0 Controlling the flushing flow of the tap water spray head to be a preset standard flushing flow Q0;
when K is<When K1 is reached, the control module judges that the washing time and the washing flow of the tap water spray head need to be adjusted, adjusts the washing time of the tap water spray head to Tc, and sets Tc = Tc 0 -t c Adjusting the flushing flow of the tap water spray head to Q, and setting Q = Q0-Q;
wherein K1 represents the preset first standard aerobic pool foam characteristic contrast parameter, K2 represents the preset second standard aerobic pool foam characteristic contrast parameter, t c And q represents the preset standard tap water flushing time adjustment quantity, and the preset standard tap water flushing flow adjustment quantity.
9. The intelligent sewage purification treatment system according to claim 1, wherein the control module obtains information transmitted by the bubble sensor, the sludge level sensor and the liquid level sensor, and calculates a sludge characteristic parameter E according to a formula (4), wherein,
in the formula (4), B represents the bubble density, B0 represents the preset standard unit volume bubble density comparison parameter, G represents the ratio of the sludge height to the liquid level height of the secondary sedimentation tank, and G0 represents the preset standard sludge sedimentation ratio comparison parameter.
10. The intelligent sewage purification treatment system according to claim 1, wherein the control module determines whether the sludge reflux ratio needs to be adjusted or not according to the sludge characteristic parameter E, determines whether the power of the fan and the stirring rate of the stirrer need to be corrected or not, adjusts the sludge reflux ratio to a corresponding value according to the determination result, and corrects the power of the fan and the stirring rate of the stirrer to a corresponding value, wherein,
when E is larger than or equal to E0, the control module judges that the sludge reflux ratio needs to be adjusted, the power of the fan and the stirring speed of the stirrer need to be corrected, the sludge reflux ratio is adjusted to R, R = R0+ R is set, the current power of the fan is reduced by p3, and the current stirring speed of the stirrer is reduced by v2;
when E is less than E0, the control module judges that the sludge reflux ratio does not need to be adjusted, controls the sludge reflux ratio to be a preset standard sludge reflux ratio comparison parameter R0, and does not need to correct the power of the fan and the stirring speed of the stirrer;
wherein E0 represents a preset standard sludge characteristic contrast parameter, r represents a preset standard sludge reflux ratio adjustment quantity, p3 represents a preset third standard fan power correction quantity, and v2 represents a preset second standard stirring speed correction quantity.
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