CN216662775U - Sewage dephosphorization control system - Google Patents
Sewage dephosphorization control system Download PDFInfo
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- CN216662775U CN216662775U CN202123081268.7U CN202123081268U CN216662775U CN 216662775 U CN216662775 U CN 216662775U CN 202123081268 U CN202123081268 U CN 202123081268U CN 216662775 U CN216662775 U CN 216662775U
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- sewage
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- inlet
- personal computer
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- 239000010865 sewage Substances 0.000 title claims abstract description 81
- 238000004062 sedimentation Methods 0.000 claims abstract description 32
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 24
- 239000003814 drug Substances 0.000 claims abstract description 19
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 15
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 51
- 229910052698 phosphorus Inorganic materials 0.000 claims description 51
- 239000011574 phosphorus Substances 0.000 claims description 51
- 238000005070 sampling Methods 0.000 claims description 21
- 239000010802 sludge Substances 0.000 claims description 21
- 238000001514 detection method Methods 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000000034 method Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 9
- 239000003153 chemical reaction reagent Substances 0.000 description 5
- 238000001556 precipitation Methods 0.000 description 4
- 239000013043 chemical agent Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000035967 Long Term Adverse Effects Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
-
- 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
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Activated Sludge Processes (AREA)
Abstract
The utility model belongs to the technical field of sewage treatment, and particularly relates to a sewage dephosphorization control system; the device comprises a primary sedimentation tank, a biochemical tank, a secondary sedimentation tank, a filter screen, a disinfection treatment tank, an online orthophosphate monitor, a variable frequency pump, a medicament storage tank and an industrial personal computer which are connected in sequence through pipelines; the inlet of the primary sedimentation tank is connected with the sewage inlet, and the outlet of the disinfection treatment tank is connected with the sewage outlet; the online orthophosphate monitor is connected with the secondary sedimentation tank, the inlet of the variable frequency pump is connected with the medicament storage tank, and the outlet of the variable frequency pump is connected with the secondary sedimentation tank; the input end of the industrial personal computer is in communication connection with the online orthophosphate monitor, and the output end of the industrial personal computer is in communication connection with the variable frequency pump; the utility model has the advantages that: the method for detecting the concentration of orthophosphate in the sewage in the secondary sedimentation tank has the characteristics of rapidness, high accuracy and stable ratio; the flow of the variable frequency pump is controlled by the industrial personal computer, and a proper amount of medicament is added in time, so that the lag of dosing is eliminated.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment, and particularly relates to a sewage dephosphorization control system.
Background
The sewage treatment plants generally adopt a biological phosphorus removal mode, but nowadays, the national environment protection is more and more emphasized, the sewage treatment standard is more and more strict, the biological phosphorus removal can not meet the requirement, many sewage treatment plants begin to adopt a mode of combining the biological phosphorus removal and the chemical phosphorus removal, the chemical phosphorus removal needs to be added with a chemical agent, the addition amount of the chemical agent is an important ring in the chemical phosphorus removal, and the addition amount needs to be controlled properly.
The adding amount of the existing chemical agent is generally determined according to the phosphorus content detected by a total phosphorus detector arranged at an outlet; after the reagents in the chemical tanks are reacted, carrying out total phosphorus detection on the residual sewage, and detecting whether the content of the total phosphorus is higher than a standard or not so as to determine whether to manually add the reagents or not; the adding of the reagent is before the sewage enters the chemical tank, namely the reagent to be added for removing phosphorus in the sewage before entering the chemical tank is determined according to the standard of the sewage flowing out of the chemical tank, but the phosphorus content of the sewage which enters the chemical tank for removing phosphorus cannot be the same as that of the sewage which enters the chemical tank for removing phosphorus, so that the adding mode has great hysteresis, and the reasonable adding of the reagent cannot be ensured; the excessive addition of the agent causes waste, increases the operation cost, weakens the biological phosphorus removal performance of an activated sludge system, causes long-term adverse effects on the efficient nitrogen and phosphorus removal of the whole biological unit, cannot achieve the phosphorus removal effect if the excessive addition of the agent is less, and discharges sewage without being effectively treated, thereby causing the pollution to the environment such as land, rivers and the like.
SUMMERY OF THE UTILITY MODEL
The utility model provides a sewage dephosphorization control system aiming at the technical problems of cost increase, environmental pollution and the like caused by the hysteresis of the adding of a traditional Chinese medicine in the prior art.
In order to achieve the purpose, the utility model adopts the technical scheme that: a sewage dephosphorization control system comprises a primary sedimentation tank, a biochemical tank, a secondary sedimentation tank, a filter screen and a disinfection treatment tank which are connected in sequence through pipelines; the inlet of the primary sedimentation tank is connected with a sewage inlet, and the outlet of the disinfection treatment tank is connected with a sewage outlet; the system also comprises an online orthophosphate monitor, a variable frequency pump, a medicament storage tank and an industrial personal computer; the sampling end of the online orthophosphate monitor is connected with the secondary sedimentation tank, the inlet of the variable frequency pump is connected with the medicament storage tank, and the outlet of the variable frequency pump is connected with the secondary sedimentation tank; the input end of the industrial personal computer is in communication connection with the output end of the online orthophosphate monitor, and the output end of the industrial personal computer is in communication connection with the variable frequency pump.
Preferably, still include the total phosphorus detection device of sewage, the total phosphorus detection device of sewage has two, two the total phosphorus detection device of sewage sets up respectively in the pipeline before the filter screen and after the disinfection treatment pond.
Preferably, the sewage total phosphorus detection device comprises a water pump, a sewage sampling tank and a total phosphorus online detector, wherein an inlet of the water pump is connected with a pipeline at the position of the sewage total phosphorus detection device, an outlet of the water pump is connected with the sewage sampling tank, and a sampling end of the total phosphorus online detector is connected with the sewage sampling tank; the output end of the total phosphorus on-line detector is in communication connection with the input end of the industrial personal computer, and the water pump is in communication connection with the output end of the industrial personal computer.
Preferably, the biochemical tank further comprises a sludge inlet, the secondary sedimentation tank further comprises a sludge outlet, and a sludge return pipeline is connected between the sludge inlet and the sludge outlet.
Preferably, the pipelines of the sewage inlet and the sewage outlet are respectively provided with a stop valve.
Compared with the prior art, the utility model has the advantages and positive effects that: (1) the concentration of the orthophosphate in the sewage in the secondary sedimentation tank is detected by using an online orthophosphate monitor, the orthophosphate concentration measurement has the characteristics of rapidness, high accuracy and stable ratio to total phosphorus, and the orthophosphate concentration measurement is more intuitive and effective; (2) the online orthophosphate monitor transmits detected data to the industrial personal computer, and workers control the flow of the variable frequency pump through the industrial personal computer, so that a proper amount of medicament is added into the sewage in time, the dosage is calculated by technical personnel according to an empirical formula, the addition of the medicament is ensured to be little or not, and the hysteresis of the dosage is eliminated; (3) the system has simple structure, and in partial reconstruction projects, the on-site existing instruments are utilized, so that the engineering investment is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced,
FIG. 1 is a schematic diagram of the system;
FIG. 2 is a schematic view of the connection of a sewage total phosphorus detection device;
FIG. 3 is a schematic illustration of sludge recirculation;
1-a primary sedimentation tank, 2-a biochemical tank, 3-a secondary sedimentation tank, 4-a filter screen and 5-a disinfection treatment tank; 21-a sludge inlet, 31-a sludge outlet,
6-an online orthophosphate monitor, 7-a variable frequency pump, 8-a medicament storage tank,
9-a sewage total phosphorus detection device, 91-a water pump, 92-a sewage sampling tank and 93-a total phosphorus on-line detector.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.
Example 1
The following describes a sewage dephosphorization control system in embodiment 1 with reference to fig. 1 and 2, as shown in fig. 1, including a primary sedimentation tank 1, a biochemical tank 2, a secondary sedimentation tank 3, a filter screen 4 and a disinfection treatment tank 5 which are connected in sequence by pipelines; the inlet of the primary sedimentation tank 1 is connected with a sewage inlet, and the outlet of the disinfection treatment tank 5 is connected with a sewage outlet; the system also comprises an online orthophosphate monitor 6, a variable frequency pump 7, a medicament storage tank 8 and an industrial personal computer; the sampling end of the online orthophosphate monitor 6 is connected with the secondary sedimentation tank 3, the inlet of the variable frequency pump 7 is connected with the medicament storage tank 8, and the outlet of the variable frequency pump 7 is connected with the secondary sedimentation tank 3; the input end of the industrial personal computer is in communication connection with the output end of the online orthophosphate monitor 6, and the output end of the industrial personal computer is in communication connection with the variable frequency pump 7.
The sewage of the sewage treatment plant is firstly subjected to primary precipitation from a sewage inlet to a primary precipitation tank 1, and then enters a biochemical tank 2 after primary precipitation, an anaerobic zone, an anoxic zone and an aerobic zone are arranged in the biochemical tank 2, the sewage is subjected to further biochemical treatment, and then enters a secondary precipitation tank 3;
the online orthophosphate monitor 6 is provided with a sampling tube, the sampling tube is inserted into the secondary sedimentation tank 3, and the sewage to be treated is sampled; the online orthophosphate monitor 6 detects the obtained sewage sample and measures the orthophosphate concentration; transmitting the result to an industrial personal computer in a data mode; the working personnel operates the industrial personal computer, the required medicament addition amount is measured according to the received sewage orthophosphate concentration data and an empirical formula set in the system, and the variable frequency pump 7 is controlled to add the medicament in the medicament storage tank 8 into the secondary sedimentation tank 3;
the flow of the variable frequency pump 7 can be adjusted, and the industrial personal computer can control the rotating speed of the motor of the variable frequency pump 7 to control the flow, so that the variable frequency pump 7 pumps a proper amount of medicament in a reasonable time;
the sewage treated in the secondary sedimentation tank 3 passes through a filter screen 4 and then enters a disinfection treatment tank 5 for further filtration and disinfection, and finally is discharged.
As shown in fig. 1, the device further comprises two sewage total phosphorus detection devices 9, and the two sewage total phosphorus detection devices 9 are respectively arranged on the pipeline in front of the filter screen 4 and behind the disinfection treatment tank 5.
As shown in fig. 2, the sewage total phosphorus detection device 9 includes a water pump 91, a sewage sampling tank 92 and a total phosphorus online detector 93, an inlet of the water pump 91 is connected to a pipeline at the position of the sewage total phosphorus detection device 9, an outlet of the water pump 91 is connected to the sewage sampling tank 92, and a sampling end of the total phosphorus online detector 93 is connected to the sewage sampling tank 92; the output end of the total phosphorus online detector 93 is in communication connection with the input end of an industrial personal computer, and the water pump 91 is in communication connection with the output end of the industrial personal computer.
The sewage total phosphorus detection device 9 is arranged in front of the filter screen 4 and behind the disinfection treatment tank 5 to supplement the online orthophosphate monitor 6, detects the phosphorus content of the sewage at the outlet, feeds the phosphorus content back to an industrial personal computer, records data by the industrial personal computer, judges whether the phosphorus content of the discharged sewage reaches the standard, deduces the error of the medicament added in the secondary sedimentation tank 3, and reduces the error for the next medicament addition;
the water pressure of the system is low, the water pump 91 is arranged to pump water from the pipe to the sewage sampling tank 92, and the total phosphorus online detector 93 is used for sampling and detecting the sewage of the sewage sampling tank 92.
As shown in fig. 3, the biochemical tank 2 further includes a sludge inlet 21, the secondary sedimentation tank 3 further includes a sludge outlet 31, and a sludge return pipeline is connected between the sludge inlet 21 and the sludge outlet 31.
The biological sludge in the secondary sedimentation tank 3 flows back to the biochemical tank 2, which is a sludge return system in the biological phosphorus removal sewage treatment system.
As shown in fig. 1, the pipelines of the sewage inlet and the sewage outlet are respectively provided with a stop valve.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may apply the above-mentioned technical details to other fields by using the equivalent embodiments with equivalent changes or modifications, but any simple modification and equivalent changes made to the above embodiments according to the technical spirit of the present invention may still fall within the protection scope of the technical solution of the present invention.
Claims (5)
1. A sewage dephosphorization control system comprises a primary sedimentation tank (1), a biochemical tank (2), a secondary sedimentation tank (3), a filter screen (4) and a disinfection treatment tank (5) which are connected in sequence through pipelines; the inlet of the primary sedimentation tank (1) is connected with a sewage inlet, and the outlet of the disinfection treatment tank (5) is connected with a sewage outlet; the device is characterized by also comprising an online orthophosphate monitor (6), a variable frequency pump (7), a medicament storage tank (8) and an industrial personal computer;
the sampling end of the online orthophosphate monitor (6) is connected with the secondary sedimentation tank (3), the inlet of the variable frequency pump (7) is connected with the medicament storage tank (8) through a pipeline, and the outlet of the variable frequency pump (7) is connected with the secondary sedimentation tank (3) through a pipeline;
the input end of the industrial personal computer is in communication connection with the output end of the online orthophosphate monitor (6), and the output end of the industrial personal computer is in communication connection with the variable frequency pump (7).
2. The sewage dephosphorization control system according to claim 1, further comprising two sewage total phosphorus detection devices (9), wherein the two sewage total phosphorus detection devices (9) are respectively arranged on a pipeline before the filter screen (4) and after the disinfection treatment tank (5).
3. The sewage phosphorus removal control system of claim 2, wherein the sewage total phosphorus detection device (9) comprises a water pump (91), a sewage sampling tank (92) and a total phosphorus online detector (93), an inlet of the water pump (91) is connected with a pipeline where the sewage total phosphorus detection device (9) is located, an outlet of the water pump (91) is connected with the sewage sampling tank (92), and a sampling end of the total phosphorus online detector (93) is connected with the sewage sampling tank (92);
the output end of the total phosphorus online detector (93) is in communication connection with the input end of the industrial personal computer, and the water pump (91) is in communication connection with the output end of the industrial personal computer.
4. The sewage dephosphorization control system according to claim 1, wherein the biochemical tank (2) further comprises a sludge inlet (21), the secondary sedimentation tank (3) further comprises a sludge outlet (31), and a sludge return pipeline is connected between the sludge inlet (21) and the sludge outlet (31).
5. The phosphorus removal control system for sewage as claimed in claim 1, wherein the pipelines of the sewage inlet and the sewage outlet are respectively provided with a stop valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123081268.7U CN216662775U (en) | 2021-12-09 | 2021-12-09 | Sewage dephosphorization control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123081268.7U CN216662775U (en) | 2021-12-09 | 2021-12-09 | Sewage dephosphorization control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216662775U true CN216662775U (en) | 2022-06-03 |
Family
ID=81787671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123081268.7U Active CN216662775U (en) | 2021-12-09 | 2021-12-09 | Sewage dephosphorization control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216662775U (en) |
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2021
- 2021-12-09 CN CN202123081268.7U patent/CN216662775U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240529 Address after: 215000 2F, building 1, No. 100, Guangqi Road, high tech Zone, Suzhou City, Jiangsu Province Patentee after: Suzhou Jiuzheng Water Technology Co.,Ltd. Country or region after: China Address before: 250100 room 1013-1016, block B, building 1, Jinan Yaogu, Gangxing Third Road, Jinan area, China (Shandong) pilot Free Trade Zone, Jinan City, Shandong Province Patentee before: Shandong Bohou Data Technology Co.,Ltd. Country or region before: China |