CN116253435A - Sewage treatment system and process thereof - Google Patents
Sewage treatment system and process thereof Download PDFInfo
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- CN116253435A CN116253435A CN202310230162.3A CN202310230162A CN116253435A CN 116253435 A CN116253435 A CN 116253435A CN 202310230162 A CN202310230162 A CN 202310230162A CN 116253435 A CN116253435 A CN 116253435A
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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
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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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
- C02F2209/02—Temperature
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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
- C02F2209/22—O2
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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
- C02F2209/40—Liquid flow rate
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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
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Abstract
The application discloses a sewage treatment system and a process thereof, relates to the technical field of sewage treatment, and comprises the following steps: setting a water tank in a traditional sewage treatment system as a synchronous denitrification reactor, and sequentially communicating each synchronous denitrification reactor; discharging sewage into the synchronous denitrification reactor according to a preset proportion for reaction; discharging the reacted primary treatment water into a preset secondary sedimentation tank, and utilizing the secondary sedimentation tank to sediment in the primary treatment water to obtain treatment water; and discharging the treated water into a preset device, and discharging the sediment into a preset sludge distribution well so that the sludge distribution well distributes the sediment to a synchronous denitrification reactor for reuse. In this application, utilize to reform transform on traditional sewage treatment system's basis, avoided demolishing traditional sewage treatment system and rebuild, and then reduced the transformation cost.
Description
Technical Field
The application relates to the technical field of sewage treatment, in particular to a sewage treatment system and a process thereof.
Background
Along with the continuous acceleration of the urban process and the industrialized process, the environmental pollution is increasingly serious, the environmental emission requirements are increasingly strict, and the requirements on sewage treatment are also increasingly high.
At present, the sewage treatment process used by most sewage treatment plants is still a traditional process, and the traditional process has the problems of long process flow, complex process, high management difficulty and the like, and the sewage treatment system needs to be modified if the traditional process is continuously used. However, when such sewage treatment systems are modified by the conventional modification process, the structures are required to be removed and reconstructed, and a larger occupied area is required, so that the modification cost is increased.
Disclosure of Invention
The main aim of the application is to provide a sewage treatment system and a process thereof, which aims at solving the technical problems that the prior sewage treatment system needs to be dismantled and reconstructed, the occupied area is large, and the caused reconstruction cost is high in the prior art.
To achieve the above object, the present application provides a sewage treatment system modified from a conventional sewage treatment system, comprising:
the synchronous denitrification reactor is obtained by reforming a water tank in the traditional sewage treatment system, a denitrification device is arranged in the synchronous denitrification reactor, one end of the synchronous denitrification reactor is connected with a secondary sedimentation tank, and the other end of the synchronous denitrification reactor is connected with a sludge distribution well;
the secondary sedimentation tank is connected with a sludge distribution well and is used for separating sediment in the sewage again;
the sludge distribution well is used for controlling the sludge reflux quantity.
Optionally, the synchronous denitrification reactors are provided with a plurality of reactors, each reactor is connected in sequence through a pipeline, and each reactor is not provided with a reaction partition wall.
Optionally, each synchronous denitrification reactor is internally provided with a detection instrument, and the detection instrument is used for detecting the reaction environment in the synchronous denitrification reactor.
Optionally, an aeration device and a pusher are arranged in each synchronous denitrification reactor, and the aeration device is connected with a blower based on an aeration pipeline.
Optionally, the sludge distribution well is connected with the synchronous denitrification reactor through a sludge return pipe, and a flow metering device is arranged in the sludge return pipe and is used for controlling the amount of sludge distributed from the sludge distribution well into each synchronous denitrification reactor.
The application also provides a sewage treatment process, which comprises the following steps:
setting a water tank in a traditional sewage treatment system as a synchronous denitrification reactor, and sequentially communicating each synchronous denitrification reactor;
discharging sewage into the synchronous denitrification reactor according to a preset proportion for reaction;
discharging the reacted primary treatment water into a preset secondary sedimentation tank, and utilizing the secondary sedimentation tank to sediment in the primary treatment water to obtain treatment water;
and discharging the treated water into a preset device, and discharging the sediment into a preset sludge distribution well so that the sludge distribution well distributes the sediment to a synchronous denitrification reactor for reuse.
Optionally, before the step of discharging the reacted primary treatment water into a preset secondary sedimentation tank and utilizing the secondary sedimentation tank to sediment the primary treatment water to obtain the treatment water, the sewage treatment process further comprises:
based on a detection instrument arranged in the synchronous denitrification reactor, detecting environmental parameters of a reaction environment in the synchronous denitrification reactor, and based on the environmental parameters, adjusting a preset denitrification device and a preset aeration device to maximize the denitrification effect of the catalytic filler in the synchronous denitrification reactor.
Optionally, before the step of discharging the sewage into the synchronous denitrification reactor according to a preset proportion for reaction, the sewage treatment process further comprises;
and calculating the pollution concentration of the sewage and the capacity of the synchronous denitrification reactor, and presetting the ratio of the sewage to the sediment based on the capacity of the reactor and the pollution concentration.
Optionally, the step of distributing the sediment to a synchronous denitrification reactor by the sludge distribution well comprises:
determining the flow rate of the sediment distributed to the synchronous denitrification reactor, and controlling the sediment actually flowing to the synchronous denitrification reactor based on a preset flow metering device.
Optionally, the step of discharging the sewage into the synchronous denitrification reactor according to a preset proportion for reaction comprises the following steps:
and discharging the sewage into the synchronous denitrification reactor according to a preset proportion to perform the synchronous nitrification and denitrification reaction.
Compared with the prior art that the existing sewage treatment system needs to be dismantled and rebuilt, and the occupied area is large, and the resulting reconstruction cost is high, in the sewage treatment system, a water tank in the traditional sewage treatment system is set to be a synchronous denitrification reactor and is communicated with each synchronous denitrification reactor in sequence, and sewage is discharged into the synchronous denitrification reactor according to a preset proportion for reaction; discharging the reacted primary treatment water into a preset secondary sedimentation tank, and utilizing the secondary sedimentation tank to sediment in the primary treatment water to obtain treatment water; and discharging the treated water into a preset device, and discharging the sediment into a preset sludge distribution well so that the sludge distribution well distributes the sediment to a synchronous denitrification reactor for reuse. In this application, improve on traditional sewage treatment system's basis, regard as synchronous denitrification reactor with the pond in the traditional sewage treatment system, and communicate every synchronous deamination reactor in proper order, arrange sewage according to predetermineeing the proportion and react in the synchronous denitrification reactor, arrange the primary treatment water after the reaction to precipitate out the precipitate in the secondary sedimentation tank, finally arrange the treated water after the precipitate with the precipitate to different devices, arrange the precipitate in the mud distribution well, so that the precipitate reuse, in this application, utilize to reform transform on traditional sewage treatment system's basis, avoided demolishing the reconstruction with traditional sewage treatment system, and then reduced the transformation cost.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
FIG. 1 is a schematic flow chart of a first embodiment of a sewage treatment process of the present application;
FIG. 2 is a schematic flow chart of a second embodiment of the wastewater treatment process of the present application;
FIG. 3 is a schematic flow chart of a third embodiment of the wastewater treatment process of the present application;
FIG. 4 is a schematic diagram of the composition of the wastewater treatment system of the present application.
Reference numerals illustrate:
| reference numerals | Name of the name | Reference numerals | Name of the |
| 1 | |
2 | |
| 3 | |
4 | |
| 5 | |
6 | |
| 7 | Dissolved |
8 | Oxygen reduction potential on- |
| 9 | |
10 | |
| 11 | |
12 | |
| 13 | |
14 | |
| 15 | Sludge distributing well | 16 | Sludge return pipe |
The realization, functional characteristics and advantages of the present application will be further described with reference to the embodiments, referring to the attached drawings.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present application are merely used to explain the relative positional relationship, movement, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is correspondingly changed.
In the present application, unless explicitly specified and limited otherwise, the terms "coupled," "secured," and the like are to be construed broadly, and for example, "secured" may be either permanently attached or removably attached, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
In addition, descriptions such as those related to "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated in this application. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout is meant to include three side-by-side schemes, for example, "a and/or B", including a scheme, or B scheme, or a scheme that is satisfied by both a and B. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be regarded as not exist and not within the protection scope of the present application.
In the present application, a sewage treatment system is proposed, and referring to fig. 4, fig. 4 is a schematic diagram of the composition of the sewage treatment system of the present application.
In an embodiment of the present application, referring to fig. 4, the sewage treatment system includes:
the synchronous denitrification reactor 4 is obtained by reforming a water tank in the traditional sewage treatment system, a denitrification device 10 is arranged in the synchronous denitrification reactor 4, one end of the synchronous denitrification reactor 4 is connected with a secondary sedimentation tank 12, and the other end of the synchronous denitrification reactor 4 is connected with a sludge distribution well 15;
a secondary sedimentation tank 12, wherein the secondary sedimentation tank 12 is connected with a sludge distribution well 15, and the secondary sedimentation tank 12 is used for separating sediment in sewage again;
a sludge distribution well 15, wherein the sludge distribution well 15 is used for controlling the sludge reflux amount.
The sewage treatment system is modified based on the traditional sewage treatment system. The water tank in the traditional sewage treatment system is used as the synchronous denitrification reactor 4, so that the dismantling and reconstruction of the traditional sewage treatment system are avoided.
According to the technical scheme, the sewage treatment system is obtained by reforming the traditional sewage treatment system, namely, the synchronous denitrification reactor 4 is obtained by reforming a water tank in the traditional sewage treatment system, the denitrification device 10 is arranged in the synchronous denitrification reactor 4, one end of the synchronous denitrification reactor 4 is connected with the secondary sedimentation tank 12, the other end of the synchronous denitrification reactor is connected with the sludge distribution well 15, and therefore the part needing reforming in the traditional sewage treatment system can be reduced, the traditional sewage treatment system is utilized to the maximum extent, and reforming cost is reduced.
In an embodiment of the present application, the secondary sedimentation tank 12 and the sludge distribution well 15 may be modified by a pool or a structure in a conventional sewage treatment system, so that the secondary sedimentation tank and the sludge distribution well can utilize resources in the conventional sewage treatment system as much as possible, reduce modification parts, further avoid newly increasing construction land, and reduce cost for purchasing modification products.
Referring to fig. 4, the synchronous denitrification reactors 4 are provided in plurality, each of the synchronous denitrification reactors 4 is connected in sequence through a pipeline, and a reaction partition wall is not provided in each of the synchronous denitrification reactors 4.
In an embodiment of the application, connect gradually as an organic whole every synchronous denitrification reactor 4 through the pipeline, so set up, make a plurality of synchronous denitrification reactors 4 continuous operation, avoided carrying out the device internal treatment that discharges to the second time handled after handling sewage for the first time, extravagant two sets of system's energy resource, and then reduce the energy consumption when handling sewage many times.
In an embodiment of the present application, the reaction partition wall is not disposed in each synchronous denitrification reactor 4, so that the reaction in each synchronous denitrification reactor 4 can be synchronous reaction, that is, in the same denitrification reactor, the nitrification reaction and the denitrification reaction are performed simultaneously, so that the nitrate produced by the nitrification reaction is timely subjected to the denitrification reaction, thereby not only reducing the cost of preparing a new reaction device, reducing the technological process of sewage reaction, further reducing the reconstruction cost, but also improving the sewage treatment rate.
Referring to fig. 4, a detecting instrument for detecting the reaction environment in the synchronous denitrification reactor 4 is provided in each of the synchronous denitrification reactors 4.
Wherein the detecting instrument at least comprises a dissolved oxygen meter 7, an oxygen reduction potential on-line analyzer 8 and a sludge detector 9.
In an embodiment of the present application, a dissolved oxygen analyzer 7, an oxygen reduction potential on-line analyzer 8 and a sludge detector 9 are disposed in each synchronous denitrification reactor 4, so that the reaction environment in each synchronous denitrification reactor 4 can be detected in real time, parameters of the catalytic filler released by the denitrification device 10 are further adjusted, aeration parameters required by the aeration device 6 are adjusted, and a reaction environment with highest reaction efficiency is created for the reaction in each synchronous denitrification reactor 4, so as to improve the treatment efficiency of sewage.
Wherein the dissolved oxygen meter 7 can detect the dissolved oxygen amount and the water temperature in the synchronous denitrification reactor 4 in real time.
Wherein, the oxygen reduction potential online analyzer 8 can detect the redox performance of the reaction substances in the synchronous denitrification reactor 4 in real time.
Wherein the sludge meter 9 can detect the concentration of the precipitate in the synchronous denitrification reactor 4 in real time.
The sediment can be sludge, or any sediment which is used for treating sewage and is insoluble in water.
Referring to fig. 4, an aeration device 6 and a pusher 5 are provided in each of the synchronous denitrification reactors 4, and the aeration device 6 is provided with a blower 11 based on the connection of the aeration pipe 3.
In an embodiment of the present application, an aeration device 6 and a flow impeller 5 are disposed in each synchronous denitrification reactor 4, and the aeration device 6 is disposed between the flow impeller 5 and the denitrification device 10, so that the air discharged by the aeration device 6 can be pushed to the denitrification device 10 through the flow impeller 5, so as to increase the catalytic efficiency of the catalytic filler released by the denitrification device 10, and improve the efficiency of sewage treatment.
Wherein, a plurality of aeration devices 6 can be connected on the same air blower 11, and aeration parameters of the aeration devices 6 are adjusted to control aeration quantity of each aeration device 6, and each aeration device 6 is connected with one air blower 11, and aeration quantity of the corresponding aeration device 6 is controlled by adjusting parameters of the air blower 11 or parameters of the corresponding aeration device 6.
In an embodiment of the application, the aeration device 6 is connected to the blower 11 through the aeration pipe 3, so that the aeration parameters of the aeration device 6 are adjusted to be the same as the parameters of the blower 11, and the aeration device 6 needs to be set in each synchronous denitrification reactor 4, and the aeration device 6 is connected to the blower 11 through the aeration pipe 3, so that the cost of purchasing the blower 11 can be reduced, and the preset effect is achieved.
Referring to fig. 4, the sludge distribution well 15 is connected to the synchronous denitrification reactor 4 through a sludge return pipe 16, and a flow metering device is disposed in the sludge return pipe 16, and is used for controlling the amount of sludge distributed from the sludge distribution well 15 into each synchronous denitrification device.
In an embodiment of the present application, a flow metering device is disposed in the sludge return pipe 16, so that the sediment in the sludge distribution well 15 can be distributed to the synchronous denitrification reactor 4, and the flow of the sediment actually flowing into the synchronous denitrification reactor 4 is strictly detected, so that the amount of the sediment required for reaction in the synchronous denitrification reactor 4 is precisely controlled, and the treatment efficiency of sewage is improved.
In an embodiment of the sewage treatment system and the process thereof, referring to fig. 1, the sewage treatment process includes:
step S10, setting a water tank in a traditional sewage treatment system as a synchronous denitrification reactor 4, and communicating each synchronous denitrification reactor 4 in turn;
in this embodiment, the water tank in the conventional sewage system is set as the synchronous denitrification reactor 4, and the water tank can be set as the secondary sedimentation tank 12 and the sludge distribution well 15, so that the existing structures in the conventional sewage system are reasonably and usefully utilized, the parts of the conventional sewage system which need to be modified are further reduced, and the modification cost is further reduced.
In this embodiment, each synchronous denitrification reactor 4 is sequentially connected to form a complete sewage treatment system, so that the use of a plurality of sewage treatment systems to treat the same batch of sewage is reduced, the sewage treatment efficiency is improved, and the sewage treatment cost is reduced.
Step S30, discharging sewage into the synchronous denitrification reactor 4 according to a preset proportion for reaction;
in this embodiment, according to the preset ratio of the sewage and the sediment, the sewage is discharged into the synchronous denitrification reactor 4 through the water inlet pipe 1 and the water distributing valve 2, so that the sewage and the sediment can fully act, and the sewage can be fully treated when the utilization efficiency of the sediment is improved.
Specifically, the step of discharging the sewage into the synchronous denitrification reactor 4 for reaction according to a preset ratio comprises the following steps:
and S31, discharging the sewage into the synchronous denitrification reactor 4 according to a preset proportion to perform the synchronous nitrification and denitrification reaction.
In this embodiment, the sewage is discharged into the synchronous denitrification reactor 4, and the nitrification reaction and the denitrification reaction are performed synchronously, wherein the nitrification reaction can exist nitrogen element in ammonia in the sewage in the form of nitrate, and the denitrification reaction can exist nitrogen element in nitrate in the form of nitrogen and is discharged, so that the nitrogen element in the sewage is eliminated.
In this embodiment, the nitrification reaction and the denitrification reaction are put together, so that the reaction efficiency of the two reactions can be promoted. That is, the denitrification reaction can consume nitrate in real time to reduce the concentration of nitrate, break the reaction balance of the nitrification reaction, further promote the nitrification reaction, generate nitrate by the nitrification reaction, increase the concentration of nitrate, break the reaction balance of the denitrification reaction, and further promote the denitrification reaction.
Step S50, discharging the reacted primary treatment water into a preset secondary sedimentation tank 12, and utilizing the secondary sedimentation tank 12 to sediment in the primary treatment water to obtain treatment water;
the sediment can be sludge, or any sediment which is used for treating sewage and is insoluble in water.
In this embodiment, the primary treated water after the sewage is sequentially treated by the plurality of synchronous denitrification reactors 4 is discharged into the secondary sedimentation tank 12, and the precipitate is precipitated to obtain treated water that can be discharged or utilized.
Step S60, discharging the treated water into a preset device, and discharging the sediment to a preset sludge distribution well 15, so that the sludge distribution well 15 distributes the sediment to the synchronous denitrification reactor 4 for reuse.
In this embodiment, the treated water is discharged to a preset device through the water outlet pipe 13 for direct discharge or reuse after detection of the treated water.
In this embodiment, the sediment is discharged to the sludge distribution well 15 through the sludge pipe 14 for reuse after the sediment is treated by the sludge distribution well 15. To reduce the cost of the material.
Specifically, the step of distributing the sediment to the synchronous denitrification reactor 4 by the sludge distribution well 15 includes:
step S61 of determining the flow rate of the sediment distributed to the synchronous denitrification reactor 4 and controlling the amount of sediment actually flowing into the synchronous denitrification reactor 4 based on a preset flow metering device.
In this embodiment, the flow of the sediment actually flowing into the synchronous denitrification reactor 4 is detected in real time by the flow metering device, so that the amount of the sediment in the synchronous denitrification reactor 4 is accurately controlled, and the ratio between the sediment and the sewage is prevented from being damaged, and the sewage treatment efficiency is prevented from being affected. That is, the reflux ratio of the precipitate is controlled by the flow metering device, and for example, the reflux ratio may be 100% to 120%.
Compared with the prior art that the existing sewage treatment system needs to be dismantled and rebuilt, and the occupied area is large, and the resulting reconstruction cost is high, in the sewage treatment system, a water tank in the traditional sewage treatment system is set to be a synchronous denitrification reactor 4 and is communicated with each synchronous denitrification reactor 4 in sequence, and sewage is discharged into the synchronous denitrification reactors 4 for reaction according to a preset proportion; discharging the reacted primary treatment water into a preset secondary sedimentation tank 12, and precipitating the precipitate in the primary treatment water by using the secondary sedimentation tank 12 to obtain treatment water; the treated water is discharged into a preset device, and the sediment is discharged into a preset sludge distribution well 15, so that the sludge distribution well 15 distributes the sediment to the synchronous denitrification reactor 4 for reuse. In this application, improve on traditional sewage treatment system's basis, regard as synchronous denitrification reactor 4 with the pond in the traditional sewage treatment system, and communicate every synchronous deamination reactor in proper order, arrange sewage according to predetermineeing the proportion and react in synchronous denitrification reactor 4, arrange the primary treatment water after the reaction into secondary sedimentation tank 12 and deposit out the precipitate, arrange the treated water after the precipitate with the precipitate to different devices at last, arrange the precipitate into mud distribution well 15, so that the precipitate reuse, in this application, utilize to reform transform on traditional sewage treatment system's basis, avoided demolishing the reconstruction with traditional sewage treatment system, and then reduced the transformation cost.
The embodiment of the application provides a second embodiment on the basis of the embodiment of the sewage treatment process. Referring to fig. 2, fig. 2 is a schematic flow chart of a second embodiment of the sewage treatment process of the present application.
In this embodiment, the wastewater treatment process further includes, before the step of discharging the reacted primary treatment water into a preset secondary sedimentation tank 12 and precipitating the precipitate in the primary treatment water by using the secondary sedimentation tank 12 to obtain the treated water:
step S40, detecting the environmental parameters of the reaction environment in the synchronous denitrification reactor 4 based on the detection instrument arranged in the synchronous denitrification reactor 4, and adjusting the preset denitrification device 10 and the preset aeration device 6 based on the environmental parameters so as to maximize the denitrification effect of the catalytic filler in the synchronous denitrification reactor 4.
Wherein the detecting instrument at least comprises a dissolved oxygen meter 7, an oxygen reduction potential on-line analyzer 8 and a sludge detector 9.
Wherein the dissolved oxygen meter 7 can detect the dissolved oxygen amount and the water temperature in the synchronous denitrification reactor 4 in real time.
Wherein, the oxygen reduction potential online analyzer 8 can detect the redox performance of the reaction substances in the synchronous denitrification reactor 4 in real time.
Wherein the sludge meter 9 can detect the concentration of the precipitate in the synchronous denitrification reactor 4 in real time.
The detecting instrument may send the detected environmental parameters to the controller, and determine the parameters for adjusting the denitrification device 10 to release the catalytic filler and the aeration parameters of the aeration device 6 through the controller, and control and adjust the denitrification device 10 and the aeration device 6 through the controller.
In this embodiment, the environmental parameters in the synchronous denitrification reactor 4 are detected in real time by the detecting instrument, and the denitrification device 10 and the aeration device 6 affecting the sewage treatment efficiency are adjusted in real time according to the environmental parameters, so that the sewage treatment efficiency is improved.
The embodiment of the application provides a third embodiment on the basis of the above embodiment of the sewage treatment process. Referring to fig. 3, fig. 3 is a schematic flow chart of a third embodiment of the sewage treatment process of the present application.
In this embodiment, before the step of discharging the sewage into the synchronous denitrification reactor 4 for reaction according to a predetermined ratio, the sewage treatment process further includes;
step S20, calculating the pollution concentration of the sewage and the capacity of the synchronous denitrification reactor 4, and presetting the ratio of the sewage to the sediment based on the capacity of the reactor and the pollution concentration.
In this embodiment, the pollutant concentration of the pollutant in the sewage and the reactor capacity of the synchronous denitrification reactor 4 are determined first, and the ratio of the sewage and the sediment that can be rapidly and efficiently reacted by the synchronous denitrification reactor 4 is determined according to the pollutant concentration and the reactor capacity.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.
Claims (10)
1. A wastewater treatment system, wherein the wastewater treatment system is retrofitted from a conventional wastewater treatment system, the wastewater treatment system comprising:
the synchronous denitrification reactor is obtained by reforming a water tank in the traditional sewage treatment system, a denitrification device is arranged in the synchronous denitrification reactor, one end of the synchronous denitrification reactor is connected with a secondary sedimentation tank, and the other end of the synchronous denitrification reactor is connected with a sludge distribution well;
the secondary sedimentation tank is connected with a sludge distribution well and is used for separating sediment in the sewage again;
the sludge distribution well is used for controlling the sludge reflux quantity.
2. The wastewater treatment system according to claim 1, wherein a plurality of synchronous denitrification reactors are provided, each of the synchronous denitrification reactors is connected in sequence through a pipeline, and a reaction partition wall is not provided in each of the synchronous denitrification reactors.
3. The wastewater treatment system of claim 2, wherein each of the synchronous denitrification reactors is provided with a detection instrument for detecting a reaction environment in the synchronous denitrification reactor.
4. The sewage treatment system according to claim 2, wherein an aeration device and a impeller are provided in each of the synchronous denitrification reactors, and the aeration device is provided with a blower based on an aeration pipe connection.
5. The wastewater treatment system of claim 2, wherein the sludge distribution well and the synchronous denitrification reactor are connected by a sludge return pipe, and a flow metering device is arranged in the sludge return pipe and is used for controlling the amount of sludge distributed from the sludge distribution well into each synchronous denitrification device.
6. A sewage treatment process, characterized in that the sewage treatment process comprises the steps of:
setting a water tank in a traditional sewage treatment system as a synchronous denitrification reactor, and sequentially communicating each synchronous denitrification reactor;
discharging sewage into the synchronous denitrification reactor according to a preset proportion for reaction;
discharging the reacted primary treatment water into a preset secondary sedimentation tank, and utilizing the secondary sedimentation tank to sediment in the primary treatment water to obtain treatment water;
and discharging the treated water into a preset device, and discharging the sediment into a preset sludge distribution well so that the sludge distribution well distributes the sediment to a synchronous denitrification reactor for reuse.
7. The wastewater treatment process according to claim 6, wherein the wastewater treatment process further comprises, before the step of discharging the reacted primary treatment water into a predetermined secondary sedimentation tank and precipitating the precipitate in the primary treatment water using the secondary sedimentation tank to obtain the treatment water:
based on a detection instrument arranged in the synchronous denitrification reactor, detecting environmental parameters of a reaction environment in the synchronous denitrification reactor, and based on the environmental parameters, adjusting a preset denitrification device and a preset aeration device to maximize the denitrification effect of the catalytic filler in the synchronous denitrification reactor.
8. The wastewater treatment process of claim 6, wherein the wastewater treatment process further comprises, prior to the step of discharging the wastewater in a predetermined ratio into the synchronous denitrification reactor for reaction;
and calculating the pollution concentration of the sewage and the capacity of the synchronous denitrification reactor, and presetting the ratio of the sewage to the sediment based on the capacity of the reactor and the pollution concentration.
9. The wastewater treatment process of claim 6, wherein the step of distributing the sediment to a synchronous denitrification reactor by the sludge distribution well comprises:
determining the flow rate of the sediment distributed to the synchronous denitrification reactor, and controlling the sediment actually flowing to the synchronous denitrification reactor based on a preset flow metering device.
10. The wastewater treatment process of claim 6, wherein the step of discharging the wastewater into the synchronous denitrification reactor according to a predetermined ratio for reaction comprises:
and discharging the sewage into the synchronous denitrification reactor according to a preset proportion to perform the synchronous nitrification and denitrification reaction.
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| KR20030038931A (en) * | 2001-11-09 | 2003-05-17 | (주)동명기술공단종합건축사사무소 | method and equipment for advanced wastewater-treatment |
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| CN215756671U (en) * | 2021-07-13 | 2022-02-08 | 中麒水务科技(深圳)有限公司 | Large-scale synchronous denitrification system of sewage |
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| CN102936085A (en) * | 2012-12-07 | 2013-02-20 | 焦作中持水务有限公司 | Stacked biological denitrification sewage treatment technology and device |
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