CN109467190B - System for automatically adjusting reflux quantity of mixed liquid - Google Patents
System for automatically adjusting reflux quantity of mixed liquid Download PDFInfo
- Publication number
- CN109467190B CN109467190B CN201811594390.4A CN201811594390A CN109467190B CN 109467190 B CN109467190 B CN 109467190B CN 201811594390 A CN201811594390 A CN 201811594390A CN 109467190 B CN109467190 B CN 109467190B
- Authority
- CN
- China
- Prior art keywords
- mixed liquor
- control module
- ammonia nitrogen
- reflux
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010992 reflux Methods 0.000 title claims abstract description 134
- 239000007788 liquid Substances 0.000 title claims description 48
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims abstract description 107
- 238000001514 detection method Methods 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 13
- 230000008569 process Effects 0.000 claims abstract description 13
- 238000005086 pumping Methods 0.000 claims abstract description 3
- 239000010865 sewage Substances 0.000 claims description 63
- 238000004891 communication Methods 0.000 claims description 29
- 230000001276 controlling effect Effects 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 238000013528 artificial neural network Methods 0.000 claims description 15
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 14
- 229910052760 oxygen Inorganic materials 0.000 claims description 14
- 239000001301 oxygen Substances 0.000 claims description 14
- 238000012544 monitoring process Methods 0.000 claims description 11
- 238000013135 deep learning Methods 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 9
- 238000011010 flushing procedure Methods 0.000 claims description 8
- 230000033116 oxidation-reduction process Effects 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 3
- 230000001502 supplementing effect Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000011268 retreatment Methods 0.000 claims description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 2
- 230000000593 degrading effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- XKLJHFLUAHKGGU-UHFFFAOYSA-N nitrous amide Chemical compound ON=N XKLJHFLUAHKGGU-UHFFFAOYSA-N 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- C02F2209/14—NH3-N
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/043—Treatment of partial or bypass streams
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a system for automatically adjusting the reflux quantity of mixed liquor, which comprises an ammonia nitrogen detector and further comprises: the mixed liquor reflux pump is used for pumping and refluxing the mixed liquor in the aerobic reactor to the anoxic reactor, and the control module is used for controlling the working state of the mixed liquor reflux pump according to the detection result of the ammonia nitrogen detector; and/or, further comprising: the control module is arranged in a return pipe which is communicated with the aerobic reactor and the anoxic reactor and used for controlling the working state of the first electric control switch element according to the detection result of the ammonia nitrogen detector, and the ammonia nitrogen detector and the first electric control switch element are respectively connected with the control module. The system for automatically adjusting the reflux quantity of the mixed liquor can realize the automatic and quick adjustment of the reflux process of the mixed liquor without manual intervention, and the adjustment process is controlled by the control module, so that the adjustment accuracy is high.
Description
Technical Field
The invention relates to the technical field of automatic control of sewage treatment equipment, in particular to a system for automatically adjusting the reflux quantity of mixed liquor.
Background
The ammonia nitrogen in the water can be converted into nitrite under certain conditions, and if the water is drunk for a long time, the nitrite in the water can be combined with protein to form nitrosamine, which is a strong cancerogenic substance and is extremely unfavorable to the health of human bodies. Moreover, ammonia nitrogen in water can cause harm to aquatic organisms. Therefore, the ammonia nitrogen content of the effluent of the sewage treatment equipment must meet the standard to be discharged.
The existing sewage treatment equipment generally adopts an AAO process to treat sewage, wherein in order to reduce the ammonia nitrogen content in the sewage, mixed liquor in an aerobic reactor is required to flow back to an anoxic reactor to remove nitrogen in the sewage through a reverse digestion effect, so that the effect of reducing the ammonia nitrogen content in effluent is achieved. The existing detection mode of the ammonia nitrogen content of the effluent water generally adopts an ammonia nitrogen detector to detect the quality of the effluent water, if the ammonia nitrogen content exceeds the standard, the reflux amount of the mixed liquid needs to be manually adjusted, the labor cost is high, the ammonia nitrogen content of the effluent water can be reduced by manual adjustment without being necessarily disposable, the adjustment process needs to take more time through multiple times, and the accuracy of manual adjustment is lower. In addition, frequent impact is caused on the sewage treatment system in the sewage treatment equipment in the process of multiple adjustment, and the workload of the sewage treatment system is increased.
Disclosure of Invention
The invention provides a system for automatically adjusting the reflux quantity of a mixed liquid, which aims to solve the technical problems of high labor cost and low adjustment accuracy caused by manually adjusting the reflux quantity of the mixed liquid in the existing sewage treatment equipment.
According to one aspect of the present invention, there is provided a system for automatically adjusting a reflux amount of a mixed liquor for automatically adjusting a process of controlling reflux of the mixed liquor by a sewage treatment apparatus including an anaerobic reactor, an anoxic reactor and an aerobic reactor which are sequentially communicated, the system including an ammonia nitrogen detector located at a water outlet position of the sewage treatment apparatus and for detecting an ammonia nitrogen content of water outlet of the sewage treatment apparatus, the system for automatically adjusting a reflux amount of the mixed liquor further comprising: the mixed liquor reflux pump is used for pumping and refluxing the mixed liquor in the aerobic reactor to the anoxic reactor, and the control module is used for controlling the working state of the mixed liquor reflux pump according to the detection result of the ammonia nitrogen detector; and/or
The system for automatically adjusting the reflux quantity of the mixed liquor further comprises: the control module is arranged in a return pipe which is communicated with the aerobic reactor and the anoxic reactor and used for controlling the working state of the first electric control switch element according to the detection result of the ammonia nitrogen detector, and the ammonia nitrogen detector and the first electric control switch element are respectively connected with the control module.
Further, the system for automatically adjusting the reflux quantity of the mixed liquor further comprises an alarm module which is connected with the control module and used for sending out alarm reminding.
Further, the system for automatically adjusting the reflux amount of the mixed liquor further comprises a flow detector which is connected with the control module and used for detecting the reflux amount of the mixed liquor; the control module is used for controlling the alarm module to give an alarm when the flow detector detects that the reflux amount of the mixed liquid is lower than a preset value.
Further, the system for automatically adjusting the reflux quantity of the mixed liquor comprises a mixed liquor reflux pump and a first electric control switch element, and further comprises a back flushing device which is connected with the control module and used for back flushing the reflux pipes of the mixed liquor reflux pump and the anoxic reactor.
Further, the sewage treatment equipment comprises a temporary liquid storage tank, the temporary liquid storage tank is communicated with a water outlet of the sewage treatment equipment through a second electric control switch element, the second electric control switch element is connected with a control module, and the control module is used for controlling the second electric control switch element to be opened or closed according to a detection result of the ammonia nitrogen detector.
Further, the control module is also used for generating alarm information when the ammonia nitrogen detector detects that the ammonia nitrogen content of the effluent of the sewage treatment equipment exceeds the standard, the system for automatically adjusting the reflux quantity of the mixed liquid also comprises a communication module and a cloud server,
The communication module is respectively connected with the control module and the cloud server, the cloud server is used for being connected with a remote monitoring computer,
The communication module is used for transmitting the alarm information generated by the control module to the remote monitoring computer through the cloud server.
Further, the communication module is in wireless communication connection with the mobile terminal and transmits the alarm information generated by the control module to the mobile terminal.
Further, the communication module includes one or more of a radio communication module, a fiber optic communication module, and a GPRS communication module.
Further, the system for automatically adjusting the reflux quantity of the mixed liquor further comprises a neural network module connected with the control module;
The system for automatically adjusting the reflux quantity of the mixed liquid comprises a first electric control switch element, wherein the neural network module is used for performing deep learning based on the detection result of the ammonia nitrogen detector and the control parameter of the first electric control switch element so as to intelligently control the reflux quantity of the mixed liquid; or (b)
The system for automatically adjusting the reflux quantity of the mixed liquor comprises a mixed liquor reflux pump, wherein the neural network module is used for performing deep learning based on the detection result of the ammonia nitrogen detector and the control parameter of the mixed liquor reflux pump so as to intelligently control the reflux quantity of the mixed liquor; or (b)
The system for automatically adjusting the reflux quantity of the mixed liquor comprises a mixed liquor reflux pump and a first electric control switch element, wherein the neural network module is used for performing deep learning based on the detection result of the ammonia nitrogen detector and the control parameters of the mixed liquor reflux pump and the first electric control switch element so as to intelligently control the reflux quantity of the mixed liquor.
Further, the system for automatically adjusting the reflux quantity of the mixed liquor further comprises a display screen which is connected with the control module and used for displaying the detection result of the ammonia nitrogen detector and the control parameters of the first electric control switch element and/or the mixed liquor reflux pump.
The invention has the following beneficial effects:
According to the system for automatically adjusting the reflux quantity of the mixed liquor, disclosed by the invention, the ammonia nitrogen content of the effluent of the sewage treatment equipment is detected through the ammonia nitrogen detector, and when the ammonia nitrogen content of the effluent of the sewage treatment equipment detected by the ammonia nitrogen detector is compared with the standard, the control module controls the reflux pump of the mixed liquor to start to work, and the reflux quantity of the mixed liquor is adjusted through controlling the rotating speed of the reflux pump of the mixed liquor; or the control module controls the first electric control switch element to be opened, and the reflux quantity of the mixed liquid is controlled by controlling the opening quantity of the first electric control switch element; or the control module controls the mixed liquid reflux pump to start and work and simultaneously controls the first electric control switch element to be opened, and the mixed liquid reflux pump and the first electric control switch element are matched and adjusted to realize the accurate adjustment of the mixed liquid reflux amount so as to reduce the content of ammonia nitrogen in the discharged water, realize the automatic and quick adjustment of the control mixed liquid reflux process, avoid manual intervention, and the adjustment process is controlled by the control module and has high adjustment accuracy.
In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
fig. 1 is a schematic block diagram of a system for automatically adjusting the reflux amount of a mixed liquor according to a preferred embodiment of the present invention.
Legend description:
11. An ammonia nitrogen detector; 12. a mixed liquid reflux pump; 13. a control module; 14. an alarm module; 15. a communication module; 16. a cloud server; 17. a neural network module; 19. a display screen; 20. a remote monitoring computer; 30. a mobile terminal.
Detailed Description
Embodiments of the invention are described in detail below with reference to the attached drawing figures, but the invention can be practiced in a number of different ways, as defined and covered below.
As shown in fig. 1, the preferred embodiment of the present invention provides a system for automatically adjusting the reflux amount of a mixed liquor, which is used for automatically adjusting the process of controlling the reflux of the mixed liquor in a sewage treatment device, thereby reducing the labor cost and improving the adjustment accuracy. The sewage treatment equipment comprises an anaerobic reactor, an anoxic reactor and an aerobic reactor which are sequentially communicated, wherein the anaerobic reactor is used for degrading organic matters in sewage, the anoxic reactor is used for removing ammonia nitrogen content in the sewage through denitrification, ammonia nitrogen components in the sewage are converted into nitrogen and ammonia, and the aerobic reactor is used for adsorbing and degrading the organic matters by using aerobic activated sludge. Therefore, denitrification in anoxic reactors plays a critical role in reducing ammonia nitrogen content in wastewater.
The system for automatically adjusting the reflux quantity of the mixed liquor comprises an ammonia nitrogen detector 11, a mixed liquor reflux pump 12 and a control module 13, wherein the ammonia nitrogen detector 11 is positioned at the water outlet position of the sewage treatment equipment and used for detecting the ammonia nitrogen content of the water outlet of the sewage treatment equipment, the mixed liquor reflux pump 12 is used for refluxing the mixed liquor in the aerobic reactor to the anoxic reactor, the control module 13 is used for controlling the working state of the mixed liquor reflux pump 12 according to the detection result of the ammonia nitrogen detector 11, and the ammonia nitrogen detector 11 and the mixed liquor reflux pump 12 are connected with the control module 13. The control module 13 includes a CPU unit, in which a standard value of the ammonia nitrogen content of the effluent is pre-stored, and when the CPU unit compares the ammonia nitrogen content of the effluent of the sewage treatment device detected by the ammonia nitrogen detector 11 to exceed the standard value, the CPU unit generates a control signal to control the mixed liquor reflux pump 12 to start working, and reflux the mixed liquor in the aerobic reactor to the anoxic reactor for denitrification treatment again, so as to reduce the ammonia nitrogen content in the sewage, thereby enabling the ammonia nitrogen content of the effluent to meet the standard. When the ammonia nitrogen detector 11 detects that the ammonia nitrogen content of the effluent reaches the standard, feedback information is generated and transmitted to the control module 13, and the control module 13 controls the mixed liquid reflux pump 12 to stop working. For example, the first class A standard of GB18918-2002, pollutant emission Standard for urban wastewater treatment plants, specifies: when the ammonia nitrogen content of the effluent of the sewage treatment device is detected to be more than 5 (8) mg/L by the ammonia nitrogen detector 11, the control module 13 controls the mixed liquid reflux pump 12 to start working so as to quickly reduce the ammonia nitrogen content of the effluent of the sewage treatment device. When the ammonia nitrogen detector 11 detects that the ammonia nitrogen content of the effluent of the sewage treatment device is lower than or equal to 5 (8) mg/L, the control module 13 controls the mixed liquor reflux pump 12 to stop working. It is understood that the control module 13 may be a PLC or an MCU. It will be appreciated that the control module 13 adjusts the rotational speed of the mixed liquor recirculation pump 12, and thus the recirculation amount of the mixed liquor, by controlling the frequency of the frequency converter of the mixed liquor recirculation pump 12.
According to the system for automatically adjusting the reflux quantity of the mixed liquor, disclosed by the invention, the ammonia nitrogen content of the effluent of the sewage treatment equipment is detected through the ammonia nitrogen detector 11, when the ammonia nitrogen content of the effluent of the sewage treatment equipment detected by the ammonia nitrogen detector 11 is compared with the standard exceeding value by the control module 13, the control module 13 controls the mixed liquor reflux pump 12 to start to work so as to reduce the ammonia nitrogen content of the effluent rapidly, the automatic and rapid adjustment for controlling the reflux process of the mixed liquor is realized, manual intervention is not needed, the adjustment process is controlled by the CPU unit, and the adjustment accuracy is high.
It can be understood that as a modification, the aerobic reactor is communicated with the anoxic reactor through a plurality of return pipes, and each return pipe is respectively provided with a first electric control switch element for controlling the return quantity of the mixed liquor, and the first electric control switch element is connected with the control module 13. When the ammonia nitrogen content of the effluent of the sewage treatment device detected by the ammonia nitrogen detector 11 exceeds the standard, the control module 13 controls the first electric control switch element to be turned on, so that the mixed liquid in the aerobic reactor is refluxed to the anoxic reactor. The control module 13 can control the opening quantity of the plurality of first electric control switch elements, so that the reflux quantity of the mixed liquor which flows back from the aerobic reactor to the anoxic reactor can be accurately regulated. It can be further understood that the control module 13 can also be used for simultaneously controlling the mixed liquor reflux pump 12 and the first electric control switch element to adjust the reflux quantity of the mixed liquor, so that the adjustment is more diversified and more accurate. The first electric control switch element can be an electromagnetic valve or an electric control valve, wherein the electric control valve is preferable, and the control module 13 can control the opening degree of the electric control valve to adjust the mixed liquid reflux amount of the first electric control switch element, so as to realize accurate adjustment.
It will be appreciated that, preferably, the system for automatically adjusting the reflux quantity of the mixed liquor further comprises an alarm module 14 connected with the control module 13 and used for sending out an alarm reminding. When the control module 13 compares the effluent ammonia nitrogen content of the sewage treatment device detected by the effluent ammonia nitrogen detector 11 to exceed the standard, the control module 13 generates an alarm control signal and sends the alarm control signal to the alarm module 14, and the alarm module 14 sends an alarm prompt so as to facilitate timely maintenance of workers and confirms the automatic regulation result, namely, confirms whether the effluent ammonia nitrogen content is recovered to be normal or not and whether the device is in normal operation or not. The alarm mode of the alarm module 14 comprises an audible alarm, a luminous alarm or a combination of the audible alarm and the luminous alarm.
It will be appreciated that, as a preferred aspect, the system for automatically adjusting the reflux amount of the mixed liquor includes the mixed liquor reflux pump 12 and the first electrically controlled switching element, and further includes a flow detector for detecting the reflux amount of the mixed liquor, and the flow detector is connected to the control module 13. The flow detector can detect the reflux amount of the mixed liquid and generate a feedback signal to be transmitted to the control module 13, different preset values of the reflux amount of the mixed liquid are correspondingly stored in the control module 13 according to different control parameters of the first electric control switch element and the mixed liquid reflux pump 12, and when the reflux amount of the mixed liquid detected by the control module 13 is lower than the preset value, the control module 13 controls the alarm module 14 to give an alarm to remind a worker to overhaul the first electric control switch element and the mixed liquid reflux pump 12, so that the reflux amount of the mixed liquid is prevented from being less due to blockage of the reflux pipe and the mixed liquid reflux pump 12, and ammonia nitrogen content in sewage cannot be reduced. As a further preferred aspect, the system for automatically adjusting the reflux amount of the mixed liquor further includes a back flushing device (not shown) connected to the control module 13 and used for back flushing the reflux pump 12 and the first electrically controlled switch element, when the rapid decrease of the reflux amount of the mixed liquor is detected, the control module 13 controls the back flushing device to start up to back flush the first electrically controlled switch element and the reflux pump 12, so as to prevent the reflux amount of the mixed liquor from being blocked, so as to restore the reflux amount of the mixed liquor to be normal.
It will be appreciated that, as a preferred aspect, the system for automatically adjusting the reflux amount of the mixed liquor further comprises a temporary liquid storage tank, wherein the temporary liquid storage tank is communicated with the water outlet of the sewage treatment device through a second electric control switch element, and the second electric control switch element is connected with the control module 13. When the control module 13 compares the ammonia nitrogen content of the effluent of the sewage treatment device detected by the ammonia nitrogen detector 11 to exceed the standard, the control module 13 controls the second electric control switch element to be turned on, so that the effluent of the sewage treatment device is discharged to the temporary liquid storage tank for storage, and the sewage with the ammonia nitrogen content exceeding the standard is prevented from being directly discharged to the external environment to cause water pollution. When the control module 13 compares that the ammonia nitrogen content of the effluent of the sewage treatment device detected by the ammonia nitrogen detector 11 meets the standard, the control module 13 controls the second electric control switch element to be closed, so that the effluent of the sewage treatment device is directly discharged to the outside. The second electrically controlled switching element is a solenoid valve or an electrically controlled valve, preferably a solenoid valve in view of production costs. In addition, preferably, the temporary liquid storage tank is communicated with the mixed liquor reflux pump 12, and the out-of-standard sewage stored in the temporary liquid storage tank can be introduced into the anoxic reactor for retreatment through the mixed liquor reflux pump 12. According to the invention, the control module 13 controls the second electric control switch element to be opened or closed according to the detection result of the ammonia nitrogen detector 11, so that the sewage with the exceeding ammonia nitrogen content can be discharged to the temporary liquid storage tank for storage, the environment is prevented from being polluted by water, and the exceeding sewage in the temporary liquid storage tank can be introduced into the sewage treatment equipment again through the mixed liquid reflux pump 12 for secondary sewage treatment, so that the recycling of the exceeding sewage is realized.
It can be understood that, as a preferred mode, the control module 13 generates alarm information when the ammonia nitrogen content of the effluent of the sewage treatment device detected by the ammonia nitrogen detector 11 exceeds the standard, the system for automatically adjusting the reflux amount of the mixed liquid further comprises a communication module 15 and a cloud server 16, the communication module 15 is respectively connected with the control module 13 and the cloud server 16, the cloud server 16 is used for being connected with the remote monitoring computer 20, and the communication module 15 transmits the alarm information generated by the control module 13 to the remote monitoring computer 20 through the cloud server 16. Further, the cloud server 16 may be connected to numerous wastewater treatment facilities at different locations so that a series of wastewater treatment facilities may be monitored on the remote monitoring computer 20. When the ammonia nitrogen content of the effluent of a certain sewage treatment device at a certain place exceeds the standard, the alarm information generated by the control module 13 corresponding to the sewage treatment device can be displayed on the screen of the remote monitoring computer 20, so that the personnel can conveniently conduct remote monitoring and fixed-point investigation, and the development requirement of the Internet of things is met. In addition, as an option, the communication module 15 is further in wireless communication connection with the mobile terminal 30 and transmits the alarm information generated by the control module 13 to the mobile terminal 30, for example, when the control module 13 finds that the ammonia nitrogen content of the effluent of the sewage treatment device exceeds the standard, the communication module 15 can send an alarm short message to the mobile terminal 30, so that even if a worker is not at a working position, the alarm information can be timely obtained. The communication module 15 includes one or more of a radio communication module, a fiber optic communication module, and a GPRS communication module.
It can be understood that, as an preferable mode, the system for automatically adjusting the reflux amount of the mixed liquor further comprises a neural network module 17 connected with the control module 13, wherein the neural network module 17 performs deep learning based on the detection result of the ammonia nitrogen detector 11 and the control parameter of the first electric control switch element so as to intelligently control the reflux amount of the mixed liquor; or the neural network module 17 performs deep learning based on the detection result of the ammonia nitrogen detector 11 and the control parameter of the mixed liquor reflux pump 12 to intelligently control the reflux amount of the mixed liquor; or the neural network module 17 performs deep learning based on the detection result of the ammonia nitrogen detector 11, the control parameters of the mixed liquor reflux pump 12 and the first electric control switching element to intelligently control the reflux amount of the mixed liquor. The neural network module 17 is a neural network chip, and the neural network chip can use the obtained detection result of the ammonia nitrogen detector 11, the control parameter of the first electric control switch element and/or the control parameter of the mixed liquid reflux pump 12 as basic data, obtain the optimal parameter setting of the first electric control switch element and/or the mixed liquid reflux pump 12 through deep learning, and transmit the optimal parameter to the first electric control switch element and/or the mixed liquid reflux pump 12 through the control module 13, thereby realizing intelligent control without manually adjusting the mixed liquid reflux amount. And with the continuous updating of the data of the ammonia nitrogen detector 11, the first electric control switch element and/or the mixed liquor reflux pump 12, the basic data obtained by the neural network module 17 will be more and more, the deep learning result will be more and more accurate, and the adjustment accuracy will be higher and higher.
It will be appreciated that, as a preferred aspect, the system for automatically adjusting the reflux amount of the mixed liquor further includes a display screen 19 connected to the control module 13 and used for displaying the detection result of the ammonia nitrogen detector 11 and the control parameters of the first electric control switch element and/or the mixed liquor reflux pump 12, so as to facilitate the monitoring of the staff.
The anoxic state must be maintained in the anoxic reactor, and the concentration of the dissolved oxygen generally cannot exceed 0.5mg/L, otherwise denitrification in the anoxic reactor is destroyed, resulting in greatly reduced nitrogen removal effect. It will be appreciated that the system for automatically adjusting the reflux amount of the mixed liquor preferably further comprises a dissolved oxygen meter or an oxidation-reduction potentiometer (not shown) which is positioned in the anoxic reactor and is used for detecting the concentration of dissolved oxygen in the anoxic reactor, and the dissolved oxygen meter or the oxidation-reduction potentiometer is connected with the control module 13. When the dissolved oxygen meter or the oxidation-reduction potentiometer detects that the concentration of the dissolved oxygen in the anoxic reactor exceeds the standard, the dissolved oxygen meter generates an alarm signal and transmits the alarm signal to the control module 13, and the control module 13 controls the alarm module 14 to give an alarm so as to remind a worker of timely maintenance.
As denitrification continues, the anoxic reactor continuously consumes the internal carbon source, and thus new carbon sources need to be continuously fed into the anoxic reactor to ensure smooth denitrification. It will be appreciated that, as a preferred option, the system for automatically adjusting the amount of mixed liquor recirculation further comprises a carbon source replenishment device (not shown) provided with a dosing pump. The carbon source supplementing device supplements a new carbon source into the anoxic reactor through the dosing pump, and the control module 13 controls the opening degree of the dosing pump according to the detection result of the ammonia nitrogen detector 11 so as to control the conveying quantity of the dosing pump. It is understood that the carbon source may be methanol, ethanol, acetic acid, sodium acetate, or the like. For example, when the ammonia nitrogen detector 11 detects that the ammonia nitrogen content of the effluent exceeds the standard, the control module 13 controls the opening degree of the dosing pump to be increased or to be fully opened so as to quickly reduce the ammonia nitrogen content of the sewage, so that the ammonia nitrogen content of the effluent reaches the standard as soon as possible; when the ammonia nitrogen detector 11 detects that the ammonia nitrogen content of the effluent meets the standard, the control module 13 controls the opening degree of the dosing pump to be reduced, so that the cost of sewage treatment is prevented from being increased due to overlarge dosage of the medicament. According to the invention, the control module 13 controls the opening degree of the dosing pump according to the detection result of the ammonia nitrogen detector 11, so that the ammonia nitrogen content of the effluent is reduced rapidly, the sewage treatment cost is not increased, the whole process is automatically controlled, no human intervention is required, and the adjustment accuracy is high.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. A system for automatically adjusting the reflux quantity of mixed liquor, which is used for automatically adjusting the process of controlling the reflux of the mixed liquor by sewage treatment equipment, the sewage treatment equipment comprises an anaerobic reactor, an anoxic reactor and an aerobic reactor which are sequentially communicated, the system comprises an ammonia nitrogen detector (11) which is positioned at the water outlet position of the sewage treatment equipment and is used for detecting the ammonia nitrogen content of the water outlet of the sewage treatment equipment,
The system for automatically adjusting the reflux quantity of the mixed liquor further comprises: the mixed liquor reflux pump (12) is used for pumping and refluxing the mixed liquor in the aerobic reactor to the anoxic reactor, and the control module (13) is used for controlling the working state of the mixed liquor reflux pump (12) according to the detection result of the ammonia nitrogen detector (11), and the ammonia nitrogen detector (11) and the mixed liquor reflux pump (12) are respectively connected with the control module (13);
The system for automatically adjusting the reflux quantity of the mixed liquor further comprises: the control module (13) is used for controlling the working state of the first electric control switch element according to the detection result of the ammonia nitrogen detector (11), and the ammonia nitrogen detector (11) and the first electric control switch element are respectively connected with the control module (13);
The system for automatically regulating the reflux amount of the mixed liquor further comprises an alarm module (14) which is connected with the control module (13) and used for sending out an alarm reminding, and a flow detector which is connected with the control module (13) and used for detecting the reflux amount of the mixed liquor, wherein the control module (13) is used for controlling the alarm module (14) to send out an alarm when the flow detector detects that the reflux amount of the mixed liquor is lower than a preset value;
The back flushing device is connected with the control module (13) and used for back flushing the mixed liquor reflux pump (12) and the reflux pipe of the anoxic reactor, and when the sudden decrease of the reflux amount of the mixed liquor is detected, the control module (13) controls the back flushing device to start so as to back flush the first electric control switch element and the mixed liquor reflux pump (12);
The system for automatically adjusting the mixed liquor reflux quantity further comprises a neural network module (17) connected with the control module (13), wherein the neural network module (17) is used for performing deep learning based on the detection result of the ammonia nitrogen detector (11) and the control parameters of the mixed liquor reflux pump (12) and the first electric control switch element, obtaining the optimal parameters of the first electric control switch element and the mixed liquor reflux pump (12) corresponding to different detection results of the ammonia nitrogen detector (11) through the deep learning, and controlling the working states of the first electric control switch element and the mixed liquor reflux pump (12) by the control module (13) according to the optimal parameters so as to intelligently control the reflux quantity of the mixed liquor;
the sewage treatment equipment comprises a temporary liquid storage tank, wherein the temporary liquid storage tank is communicated with a water outlet of the sewage treatment equipment through a second electric control switch element, the second electric control switch element is connected with a control module (13), the control module (13) is used for controlling the second electric control switch element to be opened or closed according to a detection result of an ammonia nitrogen detector (11), the temporary liquid storage tank is communicated with a mixed liquid reflux pump (12), and the super-standard sewage stored in the temporary liquid storage tank is introduced into the anoxic reactor for retreatment through the mixed liquid reflux pump (12);
The control module (13) is further used for generating alarm information when the ammonia nitrogen detector (11) detects that the ammonia nitrogen content of effluent of the sewage treatment equipment exceeds the standard, the system for automatically adjusting the reflux amount of the mixed liquid further comprises a communication module (15) and a cloud server (16), the communication module (15) is respectively connected with the control module (13) and the cloud server (16), the cloud server (16) is used for being connected with a remote monitoring computer (20), and the communication module (15) is used for transmitting the alarm information generated by the control module (13) to the remote monitoring computer (20) through the cloud server (16); the communication module (15) is in wireless communication connection with the mobile terminal (30) and transmits alarm information generated by the control module (13) to the mobile terminal (30); the communication module (15) comprises one or more of a radio communication module, a fiber optic communication module and a GPRS communication module;
The system for automatically adjusting the mixed liquor reflux quantity further comprises a display screen (19) which is connected with the control module (13) and used for displaying the detection result of the ammonia nitrogen detector (11) and the control parameters of the first electric control switch element and/or the mixed liquor reflux pump (12);
The oxygen dissolving device is characterized by further comprising a dissolved oxygen analyzer or an oxidation-reduction potentiometer which is positioned in the anoxic reactor and used for detecting the concentration of dissolved oxygen in the anoxic reactor, wherein the dissolved oxygen analyzer or the oxidation-reduction potentiometer is connected with the control module (13), and when the dissolved oxygen analyzer or the oxidation-reduction potentiometer detects that the concentration of the dissolved oxygen in the anoxic reactor exceeds the standard, the dissolved oxygen analyzer generates an alarm signal and transmits the alarm signal to the control module (13), and the control module (13) controls the alarm module (14) to give an alarm;
The anaerobic reactor comprises a control module (13) and is characterized by further comprising a carbon source supplementing device, wherein the carbon source supplementing device is provided with a dosing pump, a new carbon source is supplemented into the anaerobic reactor through the dosing pump, the control module (13) controls the opening degree of the dosing pump according to the detection result of the ammonia nitrogen detector (11) so as to control the conveying capacity of the dosing pump, when the ammonia nitrogen detector (11) detects that the ammonia nitrogen content of effluent exceeds the standard, the control module (13) controls the opening degree of the dosing pump to be increased or completely opened so as to quickly reduce the ammonia nitrogen content of sewage, the ammonia nitrogen content of the effluent reaches the standard as soon as possible, and when the ammonia nitrogen detector (11) detects that the ammonia nitrogen content of the effluent meets the standard, the control module (13) controls the opening degree of the dosing pump to be reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811594390.4A CN109467190B (en) | 2018-12-25 | 2018-12-25 | System for automatically adjusting reflux quantity of mixed liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811594390.4A CN109467190B (en) | 2018-12-25 | 2018-12-25 | System for automatically adjusting reflux quantity of mixed liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109467190A CN109467190A (en) | 2019-03-15 |
| CN109467190B true CN109467190B (en) | 2024-06-04 |
Family
ID=65676806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811594390.4A Active CN109467190B (en) | 2018-12-25 | 2018-12-25 | System for automatically adjusting reflux quantity of mixed liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109467190B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110028200B (en) * | 2019-04-24 | 2021-08-24 | 东南大学 | Automatic regulating device and regulating method for mixed liquid reflux quantity of small purifying tank |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001269697A (en) * | 2000-03-24 | 2001-10-02 | Kurita Water Ind Ltd | Nitrogen-containing drainage treating method |
| KR100654641B1 (en) * | 2006-05-16 | 2006-12-08 | 주식회사 한스환경엔지니어링 | Waste water treatment system controlling system and method for processing thereof |
| CN101570382A (en) * | 2009-06-10 | 2009-11-04 | 北京工业大学 | Device for improving advanced nitrogen and phosphorus removal by step feed and method |
| CN201587897U (en) * | 2009-06-10 | 2010-09-22 | 北京工业大学 | Drastic denitrification and phosphorus removal and process control device |
| CN102906030A (en) * | 2010-03-26 | 2013-01-30 | 塞弗恩.特伦特水净化公司 | Mainstream wastewater treatment |
| CN203630652U (en) * | 2013-12-23 | 2014-06-04 | 北京伊普国际水务有限公司 | Control system for reflux quantity of AAO sewage dephosphorization and denitrification process |
| CN105744880A (en) * | 2014-07-16 | 2016-07-06 | 奥林巴斯株式会社 | Endoscope cleaning tube |
| KR101691439B1 (en) * | 2015-11-24 | 2016-12-30 | 주식회사 두현이엔씨 | Nitrogen removing system of side stream comprising high concentrated nitrogen |
| CN107915319A (en) * | 2017-12-21 | 2018-04-17 | 纤化（上海）生物化工股份有限公司 | The processing unit and method of a kind of nitrogenous effluent |
| CN207792985U (en) * | 2018-01-04 | 2018-08-31 | 江苏汉光生物工程有限公司 | A kind of COD and the high sewage-treatment plant of ammonia-nitrogen content |
| CN108628235A (en) * | 2018-06-07 | 2018-10-09 | 苏州市智水环境科研技术有限公司 | Environment Monitoring System |
| CN108975490A (en) * | 2018-10-08 | 2018-12-11 | 天津城建大学 | Separated type MBBR-MBR based on Internet of Things couples sewage disposal system |
| CN209367933U (en) * | 2018-12-25 | 2019-09-10 | 湖南智水环境工程有限公司 | The system for automatically adjusting mixed liquor regurgitant volume |
-
2018
- 2018-12-25 CN CN201811594390.4A patent/CN109467190B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001269697A (en) * | 2000-03-24 | 2001-10-02 | Kurita Water Ind Ltd | Nitrogen-containing drainage treating method |
| KR100654641B1 (en) * | 2006-05-16 | 2006-12-08 | 주식회사 한스환경엔지니어링 | Waste water treatment system controlling system and method for processing thereof |
| CN101570382A (en) * | 2009-06-10 | 2009-11-04 | 北京工业大学 | Device for improving advanced nitrogen and phosphorus removal by step feed and method |
| CN201587897U (en) * | 2009-06-10 | 2010-09-22 | 北京工业大学 | Drastic denitrification and phosphorus removal and process control device |
| CN102906030A (en) * | 2010-03-26 | 2013-01-30 | 塞弗恩.特伦特水净化公司 | Mainstream wastewater treatment |
| CN203630652U (en) * | 2013-12-23 | 2014-06-04 | 北京伊普国际水务有限公司 | Control system for reflux quantity of AAO sewage dephosphorization and denitrification process |
| CN105744880A (en) * | 2014-07-16 | 2016-07-06 | 奥林巴斯株式会社 | Endoscope cleaning tube |
| KR101691439B1 (en) * | 2015-11-24 | 2016-12-30 | 주식회사 두현이엔씨 | Nitrogen removing system of side stream comprising high concentrated nitrogen |
| CN107915319A (en) * | 2017-12-21 | 2018-04-17 | 纤化（上海）生物化工股份有限公司 | The processing unit and method of a kind of nitrogenous effluent |
| CN207792985U (en) * | 2018-01-04 | 2018-08-31 | 江苏汉光生物工程有限公司 | A kind of COD and the high sewage-treatment plant of ammonia-nitrogen content |
| CN108628235A (en) * | 2018-06-07 | 2018-10-09 | 苏州市智水环境科研技术有限公司 | Environment Monitoring System |
| CN108975490A (en) * | 2018-10-08 | 2018-12-11 | 天津城建大学 | Separated type MBBR-MBR based on Internet of Things couples sewage disposal system |
| CN209367933U (en) * | 2018-12-25 | 2019-09-10 | 湖南智水环境工程有限公司 | The system for automatically adjusting mixed liquor regurgitant volume |
Non-Patent Citations (3)
| Title |
|---|
| 吴忠标.燃煤锅炉烟气除尘脱硫设施运行与管理 试用.北京出版社,2007,全文. * |
| 吴海锁等.环境污染与防治技术.中国环境科学出版社,2003,全文. * |
| 宋学周.废水 废气 固体废物专项治理与综合利用实务全书.中国科学技术出版社,2000,全文. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109467190A (en) | 2019-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109607632A (en) | The control system of sewage disposal device | |
| CN109052633B (en) | Intelligent sewage treatment stepless regulation and control system | |
| CN213950917U (en) | Wisdom sewage treatment control system | |
| CN109467190B (en) | System for automatically adjusting reflux quantity of mixed liquid | |
| CN112645536A (en) | Sewage treatment control method, device and system | |
| CN112707605A (en) | Intelligent modularized wastewater treatment integrated system | |
| CN205635244U (en) | Intelligent small -size sewage treatment system | |
| WO2011156517A1 (en) | Systems and methods for control of a gas or chemical | |
| CN208805698U (en) | A kind of removable data acquisition device applying to aeration tank | |
| CN112320972A (en) | Intelligent accurate carbon source adding system and method adopting cloud data management | |
| CN207780588U (en) | A kind of reconstituted tobacoo processing waste water treatment of pharmaceutical products addition control system | |
| CN107381936A (en) | A kind of multiple advanced sewage treatment system and its sewage water treatment method | |
| CN212770334U (en) | Integrated sewage treatment device | |
| CN103336028A (en) | Method for monitoring toxicity of flooding water of municipal sewage plant | |
| CN209367933U (en) | The system for automatically adjusting mixed liquor regurgitant volume | |
| CN105988427A (en) | Expert system of optimizing technological parameters during sewage processing production process | |
| CN216472462U (en) | Intelligent carbon source adding reaction system | |
| CN206580715U (en) | Integrated intelligent sewage disposal device | |
| CN205983128U (en) | Control sewage treatment device automatic operation's operating system | |
| CN209941298U (en) | A medicine system for ecological cycle dyeing equipment | |
| CN110156155B (en) | Device for preventing water fall from oxygenating and application method thereof | |
| CN112811577A (en) | PLC control system and control method for MC-MBBR (monomer blend reactor) process water pump and aerator of sewage treatment plant | |
| CN203324722U (en) | Automatic control device of steel wire pickling and phosphating wastewater processing system | |
| CN112047581A (en) | Fecal sewage treatment's control system | |
| CN207330501U (en) | The MBR biochemical treatment systems of cutting waste fluid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 410000 room 304, building 6, international enterprise center, 188 Huanbao Middle Road, Yuhua District, Changsha City, Hunan Province Applicant after: Hunan Zhishui Environmental Technology Co.,Ltd. Address before: 410000 room 304, building 6, international enterprise center, 188 Huanbao Middle Road, Yuhua District, Changsha City, Hunan Province Applicant before: HUNAN WISDOM WATER ENVIRONMENTAL ENGINEERING Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |