CN115677044A - Sewage water distribution control method and system - Google Patents
Sewage water distribution control method and system Download PDFInfo
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- CN115677044A CN115677044A CN202211255980.0A CN202211255980A CN115677044A CN 115677044 A CN115677044 A CN 115677044A CN 202211255980 A CN202211255980 A CN 202211255980A CN 115677044 A CN115677044 A CN 115677044A
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Abstract
The invention provides a sewage water distribution control method and a system, which are applied to a sewage water distribution control system, wherein the sewage water distribution control system comprises a water distribution channel, a biochemical pool, a water distribution well and at least one secondary sedimentation pool, wherein the biochemical pool, the water distribution well and the at least one secondary sedimentation pool are connected with the water distribution channel, and the method comprises the following steps: acquiring the ammonia nitrogen concentration and the reflux quantity of the biochemical tank; obtaining the water inflow of the biochemical pool according to the ammonia nitrogen concentration and the reflux amount; adjusting the opening degree of a water inlet gate of the water distribution channel according to the water inflow of the biochemical pool and a preset gate opening degree adjusting rule; and controlling the water distribution amount from the water distribution channel to the biochemical pool according to the opening of the water inlet gate. The scheme of the invention can realize uniform water distribution of the biochemical pool.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a sewage water distribution control method and system.
Background
In the existing sewage treatment process, a plurality of biochemical tanks are generally arranged, and sewage is pretreated and then distributed to different biochemical tanks for treatment;
in the prior sewage treatment process, after being pretreated, sewage enters different biochemical tanks through water distribution channels, and the problem of uneven water distribution often occurs in the water distribution process, so that the difference of the water quantities entering the different biochemical tanks is overlarge. The water yield that gets into biochemical pond is uneven, leads to partial biochemical pond to load too high, has the risk that exceeds standard, and partial biochemical pond load is low excessively for the facility utilization ratio is not enough, causes medicine consumption and energy consumption extravagant, and the water distribution channel passes through the sluice gate and gets into biochemical pond, and unable direct monitoring inflow can not effectively be adjusted.
Disclosure of Invention
The invention provides a sewage water distribution control method and system, which can solve the problem of uneven water distribution of sewage in a biochemical tank.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a sewage distribution control method is applied to a sewage distribution control system, the sewage distribution control system comprises a distribution channel, a biochemical pool, a distribution well and at least one secondary sedimentation pool, the biochemical pool, the distribution well and the secondary sedimentation pool are connected with the distribution channel, and the method comprises the following steps:
acquiring the ammonia nitrogen concentration and the reflux quantity of the biochemical tank;
obtaining the water inflow of the biochemical pool according to the ammonia nitrogen concentration and the reflux amount;
adjusting the opening of a water inlet gate of the water distribution channel according to the water inlet quantity of the biochemical pool and a preset gate opening adjusting rule;
and controlling the water distribution amount from the water distribution channel to the biochemical pool according to the opening of the water inlet gate.
Optionally, the biochemical pool comprises: the anaerobic tank, the anoxic tank and the aerobic tank are arranged, and a first backflow pump is arranged in the aerobic tank; a second reflux pump is arranged on a reflux pipeline of the secondary sedimentation tank; obtain the ammonia nitrogen concentration and the reflux capacity in biochemical pond, include:
respectively acquiring the ammonia nitrogen concentrations of the water distribution channel, the anoxic tank and the aerobic tank through ammonia nitrogen sensors arranged in the water distribution channel, the anoxic tank and the aerobic tank;
acquiring the internal reflux quantity according to the operation parameters of a first reflux pump arranged in the aerobic tank;
and acquiring the external reflux quantity according to the operation parameters of a second reflux pump arranged on the reflux pipeline of the secondary sedimentation tank.
Optionally, obtaining the water inflow of the biochemical pool according to the ammonia nitrogen concentration and the reflux amount, including:
and calculating the water inflow of the biochemical tank according to the ammonia nitrogen concentration of the water distribution channel, the ammonia nitrogen concentration at the tail end of the anoxic tank, the ammonia nitrogen concentration at the tail end of the aerobic tank, the internal reflux and the external reflux.
Optionally, according to the ammonia nitrogen concentration of the water distribution channel, the ammonia nitrogen concentration at the tail end of the anoxic tank, the ammonia nitrogen concentration at the tail end of the aerobic tank, the internal reflux and the external reflux, the water inflow of the biochemical tank is calculated, and the method comprises the following steps:
according to (Q) Into +Q Inner part +Q Outer cover )ρ Lack of oxygen ＝Q Into ρ Into +(Q Inner part +Q Outer cover )ρ Aerobic Calculating the water inflow of the biochemical pool;
wherein, said Q Into Is the water inflow of the biochemical pool, the Q Inner part Is the internal reflux quantity of the biochemical tank, the Q Outer cover The external reflux quantity of the biochemical pool is used; the rho Aerobic The ammonia nitrogen concentration at the tail end of the aerobic tank is rho Lack of oxygen Is the ammonia nitrogen concentration at the tail end of the anoxic tank, and the rho Into And the ammonia nitrogen concentration of the water distribution channel.
Optionally, the preset gate opening degree regulation rule is determined according to the following process:
setting the opening degree of a water inlet gate of the water distribution channel according to the historical water inflow of the biochemical pool to obtain an empirical value of the opening degree of the water inlet gate;
and obtaining a preset gate opening regulation rule according to the inlet gate opening empirical value.
Optionally, according to the inflow of biochemical pond and preset gate opening regulation rule, adjust the inlet gate opening of distribution channel includes:
when the water inflow is within the Nth threshold value range, adjusting the opening of a preset gate to a target preset value;
wherein N is the total number of threshold ranges, N =1,2,3, \8230, N; n is not equal to 0.
Optionally, the sewage distribution control method further includes:
setting a water inlet proportion parameter interval according to an actual operation effect;
and optimizing the opening adjusting range of the water inlet gate of the water distribution channel according to the water inlet proportion adjusting interval.
The invention also provides a sewage water distribution control system, which comprises: the system comprises a water distribution channel, a biochemical pool, a water distribution well and at least one secondary sedimentation pool, wherein the biochemical pool is connected with the water distribution channel and comprises an anaerobic pool, an anoxic pool and an aerobic pool;
the distribution channel is connected with the anaerobic tank through a water inlet gate, the anaerobic tank, the anoxic tank and the aerobic tank are arranged in parallel, at least one door opening for sewage circulation is arranged between the anaerobic tank and the anoxic tank and between the anoxic tank and the aerobic tank, the aerobic tank is connected with the distribution well through a distribution pipeline, the distribution well is connected with the secondary sedimentation tank through a distribution pipeline, and the secondary sedimentation tank is connected with the anaerobic tank through a return pipeline;
wherein the water distribution channel, the tail end of the anoxic tank and the tail end of the aerobic tank are provided with at least one ammonia nitrogen sensor; a first reflux pump is arranged in the aerobic tank, and a second reflux pump is arranged on a reflux pipeline of the secondary sedimentation tank;
obtaining the water inflow of the biochemical tank according to the ammonia nitrogen concentration and the reflux quantity of the biochemical tank;
adjusting the opening degree of a water inlet gate of the water distribution channel according to the water inflow of the biochemical pool and a preset gate opening degree adjusting rule;
and controlling the water distribution amount from the water distribution channel to the biochemical pool according to the opening of the water inlet gate.
Optionally, the anaerobic tank comprises a first anaerobic tank and a second anaerobic tank which are arranged in parallel;
the first anaerobic tank is connected with a first anoxic tank and a first aerobic tank;
the second anaerobic tank is connected with a second anoxic tank and a second aerobic tank;
the first anaerobic tank and the second anaerobic tank are arranged in an axisymmetric manner by taking the water distribution channel as an axis, the first anoxic tank and the second anoxic tank are arranged in an axisymmetric manner by taking the water distribution channel as an axis, and the first aerobic tank and the second aerobic tank are arranged in an axisymmetric manner by taking the water distribution channel as an axis.
Optionally, the water distribution channel is connected with a first anaerobic tank through a first water inlet gate, the first anaerobic tank, a first anoxic tank and a first aerobic tank are arranged in parallel, and at least one door opening for sewage circulation is arranged between the first anaerobic tank and the first anoxic tank and between the first anoxic tank and the first aerobic tank;
the water distribution channel is connected with a second anaerobic tank through a second water inlet gate, the second anaerobic tank, a second anoxic tank and a second aerobic tank are arranged in parallel, and at least one door opening for sewage circulation is formed between the second anaerobic tank and the second anoxic tank and between the second anoxic tank and the second aerobic tank;
the first anaerobic tank and the second anaerobic tank are respectively connected with the distribution well through corresponding distribution pipes, the distribution well is connected with at least one secondary sedimentation tank through a distribution pipe, and the at least one secondary sedimentation tank is respectively connected with the first anaerobic tank and the second anaerobic tank through return pipes.
The scheme of the invention at least comprises the following beneficial effects:
the above scheme of the present invention is applied to a sewage distribution control system, which comprises a distribution channel, a biochemical pool connected with the distribution channel, a distribution well and at least one secondary sedimentation tank, wherein the method comprises: acquiring the ammonia nitrogen concentration and the reflux quantity of the biochemical tank; obtaining the water inflow of the biochemical pool according to the ammonia nitrogen concentration and the reflux amount; adjusting the opening degree of a water inlet gate of the water distribution channel according to the water inflow of the biochemical pool and a preset gate opening degree adjusting rule; and controlling the water distribution amount from the water distribution channel to the biochemical pool according to the opening of the water inlet gate. Can realize the uniform water distribution of the biochemical pool.
Drawings
FIG. 1 is a schematic flow chart of a sewage distribution control method provided by an embodiment of the invention;
FIG. 2 is a schematic processing flow diagram of a sewage distribution control system provided by an embodiment of the invention;
fig. 3 is a system architecture diagram of a sewage distribution control system according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
As shown in fig. 1, an embodiment of the present invention provides a method for controlling sewage distribution, which is applied to a sewage distribution control system, where the sewage distribution control system includes a distribution channel, a biochemical tank connected to the distribution channel, a distribution well, and at least one secondary sedimentation tank, and the method includes:
and 14, controlling the water distribution amount from the water distribution channel to the biochemical pool according to the opening of the water inlet gate.
The water inlet gate can use an electric gate which can be controlled in real time; at least one ammonia nitrogen sensor can be arranged in the distribution canal and used for detecting the concentration of the ammonia nitrogen in the inflow water of the distribution canal.
In the embodiment of the invention, the water inflow of the biochemical pool is obtained through the ammonia nitrogen concentration and the backflow amount of the biochemical pool, the opening of the water inlet gate of the water distribution channel is adjusted according to the water inflow of the biochemical pool and a preset gate opening adjusting rule, and the water distribution amount from the water distribution channel to the biochemical pool is controlled according to the opening of the water inlet gate. Thus, uniform water distribution of the biochemical pool can be realized, so that the load is balanced, the energy is saved, and the consumption is reduced.
In an alternative embodiment of the present invention, the biochemical pool comprises: the anaerobic tank, the anoxic tank and the aerobic tank are arranged, and a first backflow pump is arranged in the aerobic tank; a second reflux pump is arranged on a reflux pipeline of the secondary sedimentation tank; the step 11 may include:
111, respectively acquiring the ammonia nitrogen concentrations of the water distribution channel, the anoxic tank and the aerobic tank through ammonia nitrogen sensors arranged in the water distribution channel, the anoxic tank and the aerobic tank;
step 112, acquiring an internal reflux amount according to operation parameters of a first reflux pump arranged in the aerobic tank;
and 113, acquiring the external reflux quantity according to the operation parameters of a second reflux pump arranged on the reflux pipeline of the secondary sedimentation tank.
In this embodiment, at least one ammonia nitrogen sensor may be respectively disposed at the end of the anoxic tank and the end of the aerobic tank, and is configured to detect ammonia nitrogen concentrations at the end of the anoxic tank and the end of the aerobic tank in real time; the first reflux pump may be operated according to parameters such as: the internal reflux amount is calculated according to parameters such as power, and the like, and can be calculated according to operation parameters of the second reflux pump, such as: and calculating parameters such as power and the like to obtain the external reflux quantity.
In another optional implementation of the present invention, the step 12 may include:
and step 121, calculating the water inflow of the biochemical tank according to the ammonia nitrogen concentration of the distribution channel, the ammonia nitrogen concentration at the tail end of the anoxic tank, the ammonia nitrogen concentration at the tail end of the aerobic tank, the internal reflux amount and the external reflux amount.
Specifically, the step 121 may include: step 1211, based on (Q) Into +Q Inner part +Q Outer cover )ρ Lack of oxygen ＝Q Into ρ Go into +(Q Inner part +Q Outer cover )ρ Aerobic Calculating the water inflow of the biochemical pool;
wherein, Q is Go into Is the water inflow of the biochemical pool, the Q Inner part Is the internal reflux quantity of the biochemical tank, the Q Outer cover The external reflux quantity of the biochemical pool is used as the external reflux quantity of the biochemical pool; the rho Aerobic The concentration of ammonia nitrogen at the tail end of the aerobic tank is rho Lack of oxygen Is the ammonia nitrogen concentration at the tail end of the anoxic tank, and the rho Go into And the ammonia nitrogen concentration of the water distribution channel.
In this embodiment, the water inflow of the biochemical pool, namely the anaerobic pool, the anoxic pool and the aerobic pool, can be calculated by the diluted ammonia nitrogen concentration (namely the ammonia nitrogen concentration at the tail end of the anoxic pool) in combination with the ammonia nitrogen concentration of the water distribution channel and the ammonia nitrogen concentration at the tail end of the aerobic pool, the internal reflux amount and the external reflux amount.
In another optional embodiment of the present invention, in step 13, the preset gate opening degree adjustment rule is determined according to the following process:
step 13-1, setting the opening degree of a water inlet gate of a water distribution channel according to the historical water inflow of the biochemical pool to obtain an empirical value of the opening degree of the water inlet gate;
and step 13-2, obtaining a preset gate opening regulation rule according to the empirical value of the inlet gate opening.
In this embodiment, an opening empirical value of the inlet gate may be obtained according to a historical inlet volume of the biochemical tank, and a preset gate opening adjustment rule may be obtained according to the opening empirical value of the inlet gate. Therefore, the opening degree of the water inlet gate of the water distribution channel can be adjusted according to the preset gate opening degree adjusting rule.
The preset gate opening regulation rule may include at least one of the following:
when the water inflow is within a threshold value range, increasing or decreasing the opening of a preset gate;
the anaerobic tank comprises a first biochemical tank and a second biochemical tank which are arranged in parallel, and the first biochemical tank comprises: the anaerobic pool comprises a first anaerobic pool, a first anoxic pool and a first aerobic pool, wherein the first anoxic pool and the first aerobic pool are connected with the first anaerobic pool; the second biochemical pool comprises: the second anaerobic tank is connected with the second anoxic tank and the second aerobic tank; under the condition that the first biochemical pool and the second biochemical pool are symmetrically arranged by taking the water distribution channel as a center, when the ratio of the water inflow of the first biochemical pool to the water inflow of the second biochemical pool is within a threshold range, the opening degree of the first preset gate is increased while the opening degree of the second preset gate is reduced, or the opening degree of the first preset gate is reduced while the opening degree of the second preset gate is increased, or the opening degree of the first preset gate is increased while the opening degree of the second preset gate is controlled to be unchanged, or the opening degree of the first preset gate is controlled to be unchanged while the opening degree of the second preset gate is increased; the first preset gate is a gate of the first biochemical pond, and the second preset gate is a gate of the second biochemical pond;
setting the opening adjusting time interval of the water inlet gate;
wherein, the setting of the opening adjustment time interval of the inlet gate may be determined according to the following process:
dividing the volume of the biochemical pool by the water inflow of the biochemical pool and the reflux of the biochemical pool to obtain hydraulic retention time;
and setting the opening adjustment time interval of the water inlet gate to be greater than or equal to the hydraulic retention time.
During the concrete realization, can set up aperture regulation time interval according to the actual water conservancy dwell time in anaerobism pond and oxygen deficiency pond, ensure into water and backwash liquid intensive mixing, the current inflow of effective feedback of ammonia nitrogen concentration value, for example: the designed hydraulic retention time of the anaerobic tank is 2 hours, the designed hydraulic retention time of the anoxic tank is 4 hours, the water inflow of the biochemical tank is Q, the internal reflux amount is 3Q, the external reflux amount is Q, the actual hydraulic retention time is 1.8 hours, and the opening adjusting time interval of the water inlet gate is 108 minutes.
In another optional implementation of the present invention, the step 13 may include:
step 131, when the water inflow is within the Nth threshold range, adjusting the opening of a preset gate to a target preset value;
wherein N is the total number of threshold ranges, N =1,2,3, \ 8230; n is not equal to 0.
In this embodiment, the opening of the preset gate is adjusted according to the water inflow of the biochemical tank or the threshold range of the ratio of the water inflow of the biochemical tanks on both sides of the water distribution channel, so as to control the water inflow and make the water distribution of the biochemical tanks uniform.
It should be noted that, as shown in fig. 3, the sewage distribution control system may include a series a and a series B, but is not limited to the series a and the series B, and the specific number of the series may be set according to actual needs.
As shown in fig. 3, in a specific implementation, the sewage distribution control system includes: a series and B series, both of which include: a water inlet gate and a biochemical pool; specifically, the biochemical pool in the series a is the first biochemical pool, and the biochemical pool in the series B is the second biochemical pool;
adjusting the opening degree of the water inlet gates of the water distribution channels of the A series and the B series according to the water inlet amount of the biochemical pools of the A series and the B series and the preset gate opening degree adjusting rule of the water inlet gates, which can be specifically shown in Table 1:
| threshold range of water inflow | Opening degree of A series intake gate | Opening of B series water inlet gate |
| 0％～50％ | Increase by 10% | The reduction is 10 percent |
| 50％～80％ | The increase is 5 percent | The reduction is 5 percent |
| 80％～90％ | Increase by 2% | The reduction is 2 percent |
| 110％～120％ | The reduction is 2 percent | The increase is 2 percent |
| 120％～150％ | The reduction is 5 percent | Increase by 5% |
| 150％～200％ | The reduction is 10 percent | Increase by 10% |
TABLE 1
In the above table 1, when the threshold range of the water inflow is 0% to 50%, the opening degree of the water inlet gate of the a series is increased by 10%, and the opening degree of the water inlet gate of the B series is decreased by 10%;
when the threshold range of the water inflow is 50% -80%, the opening degree of the A series water inlet gate is increased by 5%, and the opening degree of the B series water inlet gate is decreased by 5%;
when the threshold range of the water inflow is 80% -90%, the opening degree of the water inlet gate of the A series is increased by 2%, and the opening degree of the water inlet gate of the B series is decreased by 2%;
when the threshold range of the water inflow is 110% -120%, the opening degree of the water inlet gate of the A series is reduced by 2%, and the opening degree of the water inlet gate of the B series is increased by 2%;
when the threshold value range of the water inflow is 120% -150%, the opening degree of the A series water inlet gate is reduced by 5%, and the opening degree of the B series water inlet gate is increased by 5%;
when the threshold range of the water inflow is 150% -200%, the opening degree of the water inlet gate of the A series is reduced by 10%, and the opening degree of the water inlet gate of the B series is increased by 10%.
In another optional embodiment of the present invention, the method for controlling distributed sewage further includes:
step 15, setting a water inlet proportion parameter interval according to the actual operation effect;
and step 16, optimizing the opening adjusting range of the water inlet gate of the water distribution channel according to the water inlet proportion adjusting interval.
In this embodiment, can set up into water proportion parameter interval according to the operation effect of reality to optimize the range of regulation of intake gate aperture, make the inflow in different biochemical ponds keep in reasonable within range.
In a specific implementation, as shown in fig. 3, for example: the ratio of the water inflow of the biochemical pool in the A series to the water inflow of the biochemical pool in the B series is as follows: 1.5:1, at this moment, adjust the aperture of the gate of intaking in A series and reduce 5%, the aperture of the gate of intaking in B series increases 5%, after predetermineeing the period, the intake of biochemical pond in A series becomes with the intake of biochemical pond in B series: 1:1.5, when the adjustment range of the opening degree is over large, the opening degree of the water inlet gate in the A series can be adjusted from 5% to 2% and the opening degree of the water inlet gate in the B series can be adjusted from 5% to 2%, so that the water inflow of the biochemical pool in the A series and the water inflow of the biochemical pool in the B series can be effectively controlled within a reasonable range, and uniform water distribution of the biochemical pool is realized.
As shown in fig. 2, in an alternative embodiment of the present invention, a sewage distribution control process based on the sewage distribution control system specifically includes:
sewage enters an anaerobic tank from a distribution channel through a water inlet gate, the sewage entering the anaerobic tank and phosphorus-containing sludge flowing back from a secondary sedimentation tank synchronously entering the anaerobic tank flow into an anoxic tank together, and at least one ammonia nitrogen sensor can be arranged at the tail end of the distribution channel and used for detecting the ammonia nitrogen concentration of the sewage entering from the distribution channel;
the method comprises the following steps that a mixture of sewage and phosphorus-containing sludge flowing into an anoxic tank and a backflow mixture flowing back through an entering aerobic tank flow into the aerobic tank together, at least one ammonia nitrogen sensor can be arranged at the tail end of the anoxic tank and used for detecting the ammonia nitrogen concentration at the tail end of the anoxic tank, at least one ammonia nitrogen sensor can be arranged at the tail end of the aerobic tank and used for detecting the ammonia nitrogen concentration at the tail end of the aerobic tank, a first backflow pump is arranged at the tail end of the aerobic tank and used for obtaining internal backflow, and a second backflow pump is arranged on a backflow pipeline of a secondary sedimentation tank and used for obtaining external backflow;
liquid in the aerobic pool flows into a distribution well, the distribution well distributes the liquid into at least one secondary sedimentation pool through a distribution pipeline, the liquid is subjected to sedimentation treatment in the secondary sedimentation pool, a part of precipitated sludge flows back to the anaerobic pool through a return pipeline to be mixed with sewage in the anaerobic pool, and filtered water flows out from a water outlet.
In the embodiment of the invention, by adopting the sewage water distribution control method, the resistance condition of sewage entering the biochemical pool can be changed by adjusting the opening of the water inlet gate of the water distribution channel, so that the water inflow of the biochemical pool is changed, the effect of dynamically adjusting the water inflow of the biochemical pool in real time is achieved, uniform water distribution of the biochemical pool is realized, the load is balanced, and the energy is saved and the consumption is reduced.
As shown in fig. 3, an embodiment of the present invention further provides a sewage distribution control system, which includes a distribution channel, a biochemical pool connected to the distribution channel, a distribution well, and at least one secondary sedimentation pool, where the biochemical pool includes an anaerobic pool, an anoxic pool, and an aerobic pool;
the distribution channel is connected with the anaerobic tank through a water inlet gate, the anaerobic tank, the anoxic tank and the aerobic tank are arranged in parallel, at least one door opening for sewage circulation is arranged between the anaerobic tank and the anoxic tank and between the anoxic tank and the aerobic tank, the aerobic tank is connected with the distribution well through a distribution pipeline, the distribution well is connected with the secondary sedimentation tank through a distribution pipeline, and the secondary sedimentation tank is connected with the anaerobic tank through a return pipeline;
wherein the water distribution channel, the tail end of the anoxic tank and the tail end of the aerobic tank are provided with at least one ammonia nitrogen sensor; a first reflux pump is arranged in the aerobic tank, and a second reflux pump is arranged on a reflux pipeline of the secondary sedimentation tank;
obtaining the water inflow of the biochemical tank according to the ammonia nitrogen concentration and the reflux quantity of the biochemical tank;
adjusting the opening of a water inlet gate of the water distribution channel according to the water inlet quantity of the biochemical pool and a preset gate opening adjusting rule;
and controlling the water distribution amount from the water distribution channel to the biochemical pool according to the opening of the water inlet gate.
Optionally, the anaerobic tank comprises a first anaerobic tank and a second anaerobic tank which are arranged in parallel;
the first anaerobic tank is connected with a first anoxic tank and a first aerobic tank;
the second anaerobic tank is connected with a second anoxic tank and a second aerobic tank;
the first anaerobic tank and the second anaerobic tank are arranged in an axisymmetric manner by taking the water distribution channel as an axis, the first anoxic tank and the second anoxic tank are arranged in an axisymmetric manner by taking the water distribution channel as an axis, and the first aerobic tank and the second aerobic tank are arranged in an axisymmetric manner by taking the water distribution channel as an axis.
Optionally, the water distribution channel is connected with a first anaerobic tank through a first water inlet gate, the first anaerobic tank, a first anoxic tank and a first aerobic tank are arranged in parallel, and at least one door opening for sewage circulation is arranged between the first anaerobic tank and the first anoxic tank and between the first anoxic tank and the first aerobic tank;
the water distribution channel is connected with a second anaerobic tank through a second water inlet gate, the second anaerobic tank, a second anoxic tank and a second aerobic tank are arranged in parallel, and at least one door opening for sewage circulation is formed between the second anaerobic tank and the second anoxic tank and between the second anoxic tank and the second aerobic tank;
the first anaerobic tank and the second anaerobic tank are respectively connected with the water distribution well through corresponding water distribution pipes, the water distribution well is connected with at least one secondary sedimentation tank through a water distribution pipe, and the at least one secondary sedimentation tank is respectively connected with the first anaerobic tank and the second anaerobic tank through return pipes.
It should be noted that the system is a system corresponding to the method, and all implementation manners in the embodiment of the method are applicable to the embodiment of the system, and the same technical effect can be achieved.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one type of logical functional division, and other divisions may be realized in practice, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
Furthermore, it is to be noted that in the device and method of the invention, it is obvious that the individual components or steps can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of performing the series of processes described above may naturally be performed chronologically in the order described, but need not necessarily be performed chronologically, and some steps may be performed in parallel or independently of each other. It will be understood by those skilled in the art that all or any of the steps or elements of the method and apparatus of the present invention may be implemented in any computing device (including processor, storage medium, etc.) or network of computing devices, in hardware, firmware, software, or any combination thereof, which can be implemented by those skilled in the art using their basic programming skills after reading the description of the present invention.
The object of the invention is thus also achieved by a program or a set of programs running on any computing device. The computing device may be a general purpose device as is well known. The object of the invention is thus also achieved solely by providing a program product comprising program code for implementing the method or the apparatus. That is, such a program product also constitutes the present invention, and a storage medium storing such a program product also constitutes the present invention. It is to be understood that the storage medium may be any known storage medium or any storage medium developed in the future. It is further noted that in the apparatus and method of the present invention, it is apparent that each component or step can be decomposed and/or recombined. These decompositions and/or recombinations are to be considered as equivalents of the present invention. Also, the steps of executing the series of processes described above may naturally be executed chronologically in the order described, but need not necessarily be executed chronologically. Some steps may be performed in parallel or independently of each other.
While the foregoing is directed to the preferred embodiment of the present invention, it will be appreciated by those skilled in the art that various changes and modifications may be made therein without departing from the principles of the invention as set forth in the appended claims.
Claims (10)
1. A sewage water distribution control method is characterized by being applied to a sewage water distribution control system, wherein the sewage water distribution control system comprises a water distribution channel, a biochemical pool, a water distribution well and at least one secondary sedimentation pool, the biochemical pool, the water distribution well and the at least one secondary sedimentation pool are connected with the water distribution channel, and the method comprises the following steps:
acquiring the ammonia nitrogen concentration and the reflux quantity of the biochemical tank;
obtaining the water inflow of the biochemical pool according to the ammonia nitrogen concentration and the reflux amount;
adjusting the opening of a water inlet gate of the water distribution channel according to the water inlet quantity of the biochemical pool and a preset gate opening adjusting rule;
and controlling the water distribution amount from the water distribution channel to the biochemical pool according to the opening of the water inlet gate.
2. Water distribution control method for sewage according to claim 1, characterized in that said biochemical tank comprises: the anaerobic tank, the anoxic tank and the aerobic tank are arranged, and a first backflow pump is arranged in the aerobic tank; a second reflux pump is arranged on a reflux pipeline of the secondary sedimentation tank; obtain the ammonia nitrogen concentration and the reflux capacity in biochemical pond, include:
respectively acquiring the ammonia nitrogen concentrations of the water distribution channel, the anoxic tank and the aerobic tank through ammonia nitrogen sensors arranged in the water distribution channel, the anoxic tank and the aerobic tank;
acquiring the internal reflux quantity according to the operation parameters of a first reflux pump arranged in the aerobic tank;
and acquiring the external reflux quantity according to the operation parameters of a second reflux pump arranged on the reflux pipeline of the secondary sedimentation tank.
3. The sewage water distribution control method according to claim 2, wherein the step of obtaining the water inflow of the biochemical tank according to the ammonia nitrogen concentration and the reflux amount comprises the following steps:
and calculating the water inflow of the biochemical tank according to the ammonia nitrogen concentration of the distribution channel, the ammonia nitrogen concentration at the tail end of the anoxic tank, the ammonia nitrogen concentration at the tail end of the aerobic tank, the inner reflux amount and the outer reflux amount.
4. The sewage water distribution control method according to claim 3, wherein the step of calculating the water inflow of the biochemical tank according to the ammonia nitrogen concentration of the water distribution channel, the ammonia nitrogen concentration at the tail end of the anoxic tank, the ammonia nitrogen concentration at the tail end of the aerobic tank, the inner reflux and the outer reflux comprises the following steps:
according to (Q) Into +Q Inner part +Q Outer cover )ρ Lack of oxygen ＝Q Go into ρ Into +(Q Inner part +Q Outer cover )ρ Aerobic Calculating the water inflow of the biochemical pool;
wherein, Q is Into Is the water inflow of the biochemical pool, the Q Inner part To the raw materialInternal reflux of the chemical bath, Q Outer cover The external reflux quantity of the biochemical pool is used as the external reflux quantity of the biochemical pool; the rho Aerobic The concentration of ammonia nitrogen at the tail end of the aerobic tank is rho Lack of oxygen Is the ammonia nitrogen concentration at the tail end of the anoxic tank, and the rho Into And the ammonia nitrogen concentration of the water distribution channel.
5. The sewage distribution control method according to claim 1, wherein said preset gate opening degree regulation rule is determined according to the following procedure:
setting the opening degree of a water inlet gate of the water distribution channel according to the historical water inflow of the biochemical pool to obtain an empirical value of the opening degree of the water inlet gate;
and obtaining a preset gate opening regulation rule according to the empirical value of the inlet gate opening.
6. The sewage water distribution control method according to claim 1, wherein adjusting the opening degree of the water inlet gate of the water distribution channel according to the water inlet amount of the biochemical pond and a preset gate opening degree adjustment rule comprises:
when the water inflow is within the Nth threshold value range, adjusting the opening of a preset gate to a target preset value;
wherein N is the total number of threshold ranges, N =1,2,3, \ 8230; n is not equal to 0.
7. Water distribution control method for sewage according to claim 1, characterized in that it further comprises:
setting a water inlet proportion parameter interval according to an actual operation effect;
and optimizing the opening adjusting range of the water inlet gate of the water distribution channel according to the water inlet proportion adjusting interval.
8. A sewage water distribution control system comprises a water distribution channel, a biochemical pool, a water distribution well and at least one secondary sedimentation pool, wherein the biochemical pool is connected with the water distribution channel and comprises an anaerobic pool, an anoxic pool and an aerobic pool,
the distribution channel is connected with the anaerobic tank through a water inlet gate, the anaerobic tank, the anoxic tank and the aerobic tank are arranged in parallel, at least one door opening for sewage circulation is arranged between the anaerobic tank and the anoxic tank and between the anoxic tank and the aerobic tank, the aerobic tank is connected with the distribution well through a distribution pipeline, the distribution well is connected with the secondary sedimentation tank through a distribution pipeline, and the secondary sedimentation tank is connected with the anaerobic tank through a return pipeline;
wherein the water distribution channel, the tail end of the anoxic tank and the tail end of the aerobic tank are provided with at least one ammonia nitrogen sensor; a first reflux pump is arranged in the aerobic tank, and a second reflux pump is arranged on a reflux pipeline of the secondary sedimentation tank;
obtaining the water inflow of the biochemical tank according to the ammonia nitrogen concentration and the reflux quantity of the biochemical tank;
adjusting the opening of a water inlet gate of the water distribution channel according to the water inlet quantity of the biochemical pool and a preset gate opening adjusting rule;
and controlling the water distribution amount from the water distribution channel to the biochemical pool according to the opening of the water inlet gate.
9. The sewage distribution control system of claim 8, wherein said anaerobic tanks comprise a first anaerobic tank and a second anaerobic tank arranged in parallel;
the first anaerobic tank is connected with a first anoxic tank and a first aerobic tank;
the second anaerobic tank is connected with a second anoxic tank and a second aerobic tank;
the first anaerobic tank and the second anaerobic tank are arranged in an axisymmetric manner by taking the water distribution channel as an axis, the first anoxic tank and the second anoxic tank are arranged in an axisymmetric manner by taking the water distribution channel as an axis, and the first aerobic tank and the second aerobic tank are arranged in an axisymmetric manner by taking the water distribution channel as an axis.
10. The sewage water distribution control system of claim 9, wherein the water distribution channel is connected to a first anaerobic tank through a first water inlet gate, the first anaerobic tank, a first anoxic tank and a first aerobic tank are arranged in parallel, and at least one door opening for circulating sewage is arranged between the first anaerobic tank and the first anoxic tank and between the first anoxic tank and the first aerobic tank;
the water distribution channel is connected with a second anaerobic tank through a second water inlet gate, the second anaerobic tank, a second anoxic tank and a second aerobic tank are arranged in parallel, and at least one door opening for sewage circulation is formed between the second anaerobic tank and the second anoxic tank and between the second anoxic tank and the second aerobic tank;
the first anaerobic tank and the second anaerobic tank are respectively connected with the distribution well through corresponding distribution pipes, the distribution well is connected with at least one secondary sedimentation tank through a distribution pipe, and the at least one secondary sedimentation tank is respectively connected with the first anaerobic tank and the second anaerobic tank through return pipes.
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