CN209740814U - Carbon source optimizing and adding system for AAO process sewage treatment plant - Google Patents
Carbon source optimizing and adding system for AAO process sewage treatment plant Download PDFInfo
- Publication number
- CN209740814U CN209740814U CN201920241828.4U CN201920241828U CN209740814U CN 209740814 U CN209740814 U CN 209740814U CN 201920241828 U CN201920241828 U CN 201920241828U CN 209740814 U CN209740814 U CN 209740814U
- Authority
- CN
- China
- Prior art keywords
- instrument
- tank
- carbon source
- water inlet
- water
- 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
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model discloses an AAO technology sewage treatment plant carbon source is optimized and is thrown feeding system, sewage plant business turn over water quality and water yield monitoring instrument, AAO technology oxygen deficiency pond and good oxygen pond nitrate instrument, carbon source of system throw feeder apparatus, wear the wall pump all with control system connection. The system can timely and efficiently adjust the carbon source supplement adding amount of the AAO treatment system and the reflux ratio in the nitrifying liquid according to the real-time change of the quality and the quantity of the inlet water of the sewage treatment plant, so that the total nitrogen of the outlet water of the sewage treatment plant stably reaches the standard, the automation degree is higher, the manual operation intensity is effectively reduced, and the accuracy of the carbon source adding and reflux amount control is improved.
Description
Technical Field
The utility model belongs to the technical field of the environmental protection, in particular to AAO technology sewage treatment plant carbon source optimizes dosing system.
Background
In recent years, the situation of national water pollution prevention and control faces new changes, total phosphorus gradually becomes the first pollutant of surface water in key lakes and reservoirs and the economic zones of Yangtze river, inorganic nitrogen and phosphate become the first pollutants of offshore areas, and nitrogen and phosphorus pollution of partial areas rises to be the main problem of water pollution prevention and control.
The ecological environment department determines a basin control unit for controlling the total emission of nitrogen and phosphorus and a corresponding administrative region according to a total emission control region of nitrogen and phosphorus provided by action plans for preventing and treating water pollution and environmental protection plans for thirteen five ecological environments and by combining the current situation of water quality of a basin and improvement requirements. And for the key industry which has finished the approval of the pollution discharge license, determining the relevant drainage basin control units and the industry total control indexes of the corresponding administrative regions according to the nitrogen and phosphorus licensed emission information of the pollution discharge license, and implementing the industry total control. For urban sewage treatment plants, stricter assessment pressure on total nitrogen and total phosphorus of effluent is faced.
Due to various factors such as the dietary structure of urban residents in China, urban production and the like, the carbon-nitrogen ratio of sewage entering an urban sewage treatment plant is low, and the total nitrogen is not favorably and effectively removed by treatment facilities of the sewage treatment plant. Most of the existing carbon source supplement and addition systems for the AAO sewage treatment process are controlled by a single factor of nitrate indexes of inlet and outlet water of an anoxic denitrification tank, so that the accurate control of the addition amount of the supplement carbon source is difficult to realize, and the dilemma of low denitrification efficiency and large carbon source addition amount is difficult to break through.
SUMMERY OF THE UTILITY MODEL
The utility model provides a carbon source optimization dosing system of AAO technology sewage treatment plant, it can solve the accurate control problem that supplyes carbon source throw volume and other facilities of processing system, guarantees that the total nitrogen of play water is stable up to standard, effectively reduces the carbon source and throws the volume.
The technical scheme of the utility model as follows:
A carbon source optimizing and feeding system of an AAO process sewage treatment plant comprises a water inlet tank, an anaerobic tank, an anoxic tank, an aerobic tank and a water outlet channel which are sequentially connected, wherein the water inlet tank is provided with a water inlet quality and quantity monitoring instrument, the water outlet channel is provided with a water outlet quality monitoring instrument, the anoxic tank and the aerobic tank are respectively provided with a water quality monitoring instrument, the anoxic tank is connected with a carbon source feeding device through a diaphragm pump, and the aerobic tank is also connected with the anoxic tank through a wall-penetrating pump to form a nitrification liquid reflux system;
The control system is respectively connected with the water inlet quality and quantity monitoring instrument, the water outlet quality monitoring instrument and the treated water quality monitoring instrument and can read the data of each monitoring instrument; the control system is connected with the diaphragm pump to read flow data of the diaphragm pump, and can control the starting and stopping of the diaphragm pump and the flow size; the control system is connected with the wall-through pump and can control the start and stop of the wall-through pump and the flow rate.
Preferably, the instruments of the water inlet quality monitoring instrument of the water inlet pool are a water inlet COD instrument and a water inlet total nitrogen instrument, and the instrument of the water inlet quantity monitoring instrument is a water inlet electromagnetic flowmeter.
Preferably, the effluent quality monitoring instruments of the water outlet channel are a total nitrogen instrument and an ammonia nitrogen instrument.
preferably, the water quality monitoring instruments of the anoxic tank are anoxic tank nitrate instruments, and the water quality monitoring instruments of the aerobic tank are aerobic tank nitrate instruments.
Preferably, the carbon source adding device further comprises a chemical adding tank, an electromagnetic flowmeter and an ultrasonic liquid level meter, wherein the water inlet end of the diaphragm pump is connected with the chemical adding tank through a pipeline, the water outlet end of the diaphragm pump is connected with the electromagnetic flowmeter through a pipeline, and the pipeline at the water outlet end of the electromagnetic flowmeter is laid to the water inlet end of the anoxic pond; the ultrasonic liquid level meter is connected with the control system and arranged on the medicine adding tank; the electromagnetic flowmeter is connected with the control system.
Preferably, the wall-through pump is arranged at the tail end of the aerobic tank and is in bidirectional connection with a variable frequency controller, and the variable frequency controller is in bidirectional connection with a control system.
Compared with the prior art, the beneficial effects of the utility model are as follows:
The utility model relates to a carbon source optimization dosing system of AAO technology sewage treatment plant, through the quality of water/water yield of control system and control intake chamber, play ditch and middle oxygen deficiency pond, good oxygen pond, it has been solved at present to the single factor control of AAO oxygen deficiency denitrogenation pond business turn over water nitrate index, is difficult to realize the accurate control of supplementary carbon source input volume.
The utility model discloses a water outlet channel sets up out water total nitrogen appearance, goes out water ammonia nitrogen appearance, under the stable up-to-standard prerequisite of assurance sewage plant play water total nitrogen index, further adjusts the carbon source and throws the volume and nitrify liquid backward flow volume, and this system has realized that the carbon source throws the volume and nitrify liquid backward flow volume accurate control in coordination, effectively promotes treatment effeciency and the volume is thrown to the carbon source of lowering system.
Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.
Drawings
Fig. 1 is a schematic diagram of a system according to an embodiment of the present invention;
The labels in the figure are:
1 water inflow COD instrument display storage
2 total nitrogen appearance of intaking shows accumulator
3 oxygen deficiency pool nitrate instrument display storage device
4-aerobic pool nitrate instrument display storage device
5 total nitrogen appearance of flowing out shows accumulator
6 play water ammonia nitrogen appearance and show accumulator
7 water inlet COD instrument probe
8 total nitrogen appearance probe of intaking
Probe of nitrate instrument for 9 anoxic pond
probe of nitrate meter for 10-aerobic pool
11 total nitrogen appearance probe of play
12 effluent ammonia nitrogen instrument probe
13 water inlet electromagnetic flowmeter
14 electromagnetic flowmeter
15 ultrasonic liquid level meter
16 submersible sewage pump
17 wall-penetrating pump
18 diaphragm pump
19 frequency conversion controller
20 control system
21 medicine adding pot
22 piping.
Detailed Description
The present invention will be further described with reference to the following specific examples. It should be understood that these examples are only for illustrating the present invention, and are not intended to limit the scope of the present invention. In practical applications, the improvement and adjustment made by those skilled in the art according to the present invention still belong to the protection scope of the present invention.
For better illustration of the present invention, the following detailed description of the present invention is provided in conjunction with the accompanying drawings.
A carbon source optimizing and feeding system of an AAO process sewage treatment plant is shown in figure 1 and comprises a water inlet tank, an anaerobic tank, an anoxic tank, an aerobic tank and a water outlet channel which are connected in sequence, wherein a secondary sedimentation tank is arranged between the aerobic tank and the water outlet channel to realize sludge-water separation, and part of sludge in the secondary sedimentation tank flows back to the front section of the anaerobic tank to ensure the biomass of the system;
The system also comprises a control system 20, wherein the control system 20 is respectively connected with the water inlet quality and quantity monitoring instrument, the water outlet quality monitoring instrument and the treated water quality monitoring instrument and can read the data of each monitoring instrument; the control system is connected with the diaphragm pump 18 to read flow data of the diaphragm pump, and can control the starting and stopping of the diaphragm pump 18 and the flow size; the control system is connected with the wall-through pump 17 and can control the start and stop of the wall-through pump 17 and the flow rate.
Concretely, the COD appearance of intaking is installed in the intake basin, the total nitrogen appearance of intaking and stealthily dirty pump 16's the electromagnetism flowmeter 13 of intaking, the COD appearance of intaking is including the COD appearance of intaking 7 and the COD appearance of intaking that is connected with this COD appearance of intaking 7 and shows accumulator 1, the total nitrogen appearance of intaking is including the total nitrogen appearance of intaking 8 and the total nitrogen appearance of intaking that is connected with this total nitrogen appearance of intaking 8 and shows accumulator 2, the COD appearance of intaking 7, the total nitrogen appearance of intaking 8 sets up in the intake basin or in the pipeline, and the COD appearance of intaking, the total nitrogen appearance of intaking show accumulator all are connected with control system 20.
The water outlet channel is provided with a water outlet total nitrogen instrument and a water outlet ammonia nitrogen instrument, the water outlet total nitrogen instrument comprises a water outlet total nitrogen instrument probe 11 and a water outlet total nitrogen instrument display storage device 5 connected with the water outlet total nitrogen instrument probe 11, the water outlet ammonia nitrogen instrument comprises a water outlet ammonia nitrogen instrument probe 12 and a water outlet ammonia nitrogen instrument display storage device 6 connected with the water outlet ammonia nitrogen instrument probe 12, the water outlet total nitrogen instrument probe 11 and the water outlet ammonia nitrogen instrument probe 12 are both arranged in the water outlet channel, and the water outlet total nitrogen instrument display storage device 5 and the water outlet ammonia nitrogen instrument display storage device 6 are both connected with the control system 20.
The water quality monitoring instrument of the treatment facility mainly comprises an anoxic pond nitrate instrument and an aerobic pond nitrate instrument, wherein the anoxic pond nitrate instrument is arranged in an anoxic pond, the anoxic pond nitrate instrument comprises an anoxic pond nitrate instrument probe 9 and an anoxic pond nitrate instrument display storage device 3 connected with the anoxic pond nitrate instrument probe 9, the anoxic pond is internally provided with an anoxic pond nitrate instrument probe 9, the aerobic pond nitrate instrument comprises an aerobic pond nitrate instrument probe 10 and an aerobic pond nitrate instrument display storage device 4 connected with the aerobic pond nitrate instrument probe 10, the aerobic pond is internally provided with an aerobic pond nitrate instrument probe 10, the anoxic pond nitrate instrument display storage device 3, and the aerobic pond nitrate instrument display storage device 4 is connected with a control system 20.
The diaphragm pump 18 of the carbon source adding device is a mechanical diaphragm pump, the carbon source adding device further comprises a dosing tank 21, an electromagnetic flow meter 14 and an ultrasonic liquid level meter 15, the water inlet end of the diaphragm pump 18 is connected with the dosing tank 21 through a pipeline 22, the water outlet end of the diaphragm pump 18 is connected with the electromagnetic flow meter 14 through a pipeline 22, and the pipeline at the water outlet end of the electromagnetic flow meter 14 is laid to the water inlet end of the anoxic pond; the ultrasonic liquid level meter 15 is arranged on the dosing tank 21 and used for detecting the liquid level of the dosing tank, the ultrasonic liquid level meter 15 is connected with the control system 20, liquid level signals are fed back to the control system 20 in real time, the residual quantity of liquid medicine can be judged in real time, and running personnel can conveniently arrange carbon source purchasing and supplementing operations; the electromagnetic flow meter 14 is connected to a control system. The diaphragm pump 18 is bidirectionally coupled to a control system 20.
The tail end of the aerobic tank 25 is provided with a wall-through pump 17, the wall-through pump 17 is bidirectionally connected with a variable frequency controller 19, and the variable frequency controller 19 is bidirectionally connected with a control system 20.
The connection between the control system 20 and each device is as follows: the control system 20 is connected with analog quantity ports of output ends of the diaphragm pump 18 and the variable frequency controller 19, the control system 20 is connected with analog quantity ports and switching quantity ports of input ends of the diaphragm pump 18 and the variable frequency controller 19, namely the control system 20 is connected with the diaphragm pump 18 and the variable frequency controller 19 in a bidirectional mode; the connection of the other meters and the control system 20 is that each meter only needs to be connected with the analog quantity port of the control system at the output end. The electrical connections between them are prior art and will not be described in detail here.
The utility model discloses a control system work control flow as follows:
the utility model discloses a quality of water yield monitoring instrument of intaking carries out real time monitoring to the elevator pump pond of intaking water, and the COD appearance of intaking shows accumulator 1, the total nitrogen appearance of intaking shows accumulator 2 and the electromagnetic flowmeter 13 reading feedback of intaking to control system 20, control system 20 through the condition that whether there is not enough carbon source of procedure automatic calculation incoming water quality of water.
1) If the carbon source is sufficient, the control system 20 displays the reading of the water inlet electromagnetic flowmeter 13 on the storage 1 according to the water inlet COD instrument, the total nitrogen instrument for water inlet displays the storage 2 and the outlet pipeline 22 of the submersible sewage pump 16, automatically calculates the reflux quantity of the preset system, and instructs the variable frequency controller 19 of the wall-through pump 17 to execute work according to the preset flow;
Then, the limit value of the oxygen-poor pool nitrate instrument display storage 3 (the limit value is the maximum nitrate content of the oxygen-poor pool, the same applies below) is judged according to the feedback reading of the oxygen-poor pool nitrate instrument display storage 3 on the oxygen-poor pool, if the reading exceeds the limit value, the control system 20 instructs the variable frequency controller 19 to improve the flow of the wall-penetrating pump 17 according to the calculation result through automatic calculation; if the value is less than or equal to the limit value, the control system 20 acquires the display storage 4 of the nitrate instrument of the aerobic tank on the aerobic tank, the display storage 5 of the total effluent nitrogen instrument on the effluent channel and the display storage 6 of the ammonia nitrogen instrument on the effluent channel, calculates the difference value between the reading of the display storage 5 of the total effluent nitrogen instrument of the effluent channel and the reading of the display storage 6 of the ammonia nitrogen instrument on the effluent channel, judges and compares the reading of the display storage 4 of the nitrate instrument of the aerobic tank and the difference value (the reading of the display storage 5 of the total effluent nitrogen instrument-the reading of the display storage 6 of the ammonia nitrogen instrument on the effluent channel), and if the former is greater than the latter, the; if the former is smaller than the latter, the control system 20 instructs the variable frequency controller 19 to increase the flow rate of the wall feed pump 17 based on the auto-calculated value.
2) If the carbon source is insufficient, the control system 20 displays the reading of the water inlet electromagnetic flowmeter 13 on the storage 1 according to the water inlet COD instrument, the total nitrogen inlet instrument displays the storage 2 and the outlet pipeline 22 of the submersible sewage pump 16, automatically calculates the reflux quantity of the preset system, and instructs the variable frequency controller 19 of the wall-through pump 17 to execute work according to the preset flow.
Meanwhile, the control system 20 automatically calculates the preset carbon source dosage and instructs the diaphragm pump 18 to perform work according to the preset dosage flow. The control system 20 reads the reading fed back by the display storage 3 of the anoxic pool nitrate instrument on the anoxic pool and judges whether the reading is larger than the limit value of the display storage 3 of the anoxic pool nitrate instrument, if the reading of the display storage 3 of the anoxic pool nitrate instrument is judged to be larger than the limit value of the display storage 3 of the anoxic pool nitrate instrument, the control system 20 automatically calculates and instructs the variable frequency controller 19 to increase the flow of the through-wall pump 17, after the control system 20 continuously reads the data of the display storage 3 of the anoxic pool nitrate instrument and compares the data with the limit value of the display storage 3 of the anoxic pool nitrate instrument, if the reading is still larger than the limit value, the control system 20 automatically calculates and instructs the diaphragm pump.
If the anoxic pond nitrate instrument displays that the reading of the storage device 3 is close to or smaller than the limit value, the control system 20 continues to display the reading of the storage device 4, the reading of the total effluent nitrogen instrument display storage device 5 and the reading of the effluent ammonia nitrogen instrument display storage device 6 by collecting the aerobic pond nitrate instrument, compares the reading of the storage device 4 with the reading of the effluent channel (the difference is the difference between the reading of the total effluent nitrogen instrument display storage device 5 and the reading of the effluent ammonia nitrogen instrument display storage device 6), and if the reading of the total effluent nitrogen instrument is larger than the reading of the effluent ammonia nitrogen instrument display storage device 6, the control system 20 instructs the diaphragm pump 18 to reduce the flow according to automatic calculation and instructs the; if the former is smaller than the latter, the control system 20 automatically calculates, instructs the variable frequency controller 19 to increase the reflux amount, instructs the mechanical diaphragm pump 18 to fine-tune step by step to increase the flow rate, and reads the feedback reading of the electromagnetic flow meter 14 on the outlet pipeline 22 of the mechanical diaphragm pump 18.
The utility model monitors the water quality of the water inlet pool and the water quality of the treatment facility; solves the problem that the accurate control of the adding amount of the supplementary carbon source is difficult to realize aiming at the single factor control of the nitrate indexes of the inlet water and the outlet water of the AAO anoxic denitrification tank at present.
Further, the utility model discloses a show the total nitrogen appearance of play water of ditch and show accumulator, play water ammonia nitrogen appearance and show the accumulator linkage, under the stable up-to-standard prerequisite of the total nitrogen index of guaranteeing effluent of sewage plant, this system has realized that the carbon source throw addition amount and nitrify liquid backward flow volume accurate control in coordination, effectively promotes the treatment effeciency and the carbon source throw addition amount of reduction system.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (6)
1. a carbon source optimized feeding system of an AAO process sewage treatment plant comprises a water inlet tank, an anaerobic tank, an anoxic tank, an aerobic tank and a water outlet channel which are sequentially connected, and is characterized in that the water inlet tank is provided with a water inlet quality and quantity monitoring instrument, the water outlet channel is provided with a water outlet quality monitoring instrument, the anoxic tank and the aerobic tank are respectively provided with a water quality monitoring instrument, the anoxic tank is connected with a carbon source feeding device through a diaphragm pump, and the aerobic tank is also connected with the anoxic tank through a wall-penetrating pump to form a nitrification liquid reflux system;
The control system is respectively connected with the water inlet quality and quantity monitoring instrument, the water outlet quality monitoring instrument and the treated water quality monitoring instrument and can read the data of each monitoring instrument; the control system is connected with the diaphragm pump to read flow data of the diaphragm pump, and can control the starting and stopping of the diaphragm pump and the flow size; the control system is connected with the wall-through pump and can control the start and stop of the wall-through pump and the flow rate.
2. The carbon source optimizing and adding system of the AAO process sewage treatment plant according to claim 1, wherein the water inlet quality monitoring instruments of the water inlet tank are a water inlet COD (chemical oxygen demand) instrument and a water inlet total nitrogen instrument, and the water inlet quantity monitoring instruments are water inlet electromagnetic flow meters.
3. The carbon source optimizing and adding system of the AAO process sewage treatment plant according to claim 1, wherein the effluent quality monitoring instruments of the effluent channel are an effluent total nitrogen instrument and an effluent ammonia nitrogen instrument.
4. The carbon source optimizing and adding system of the AAO process sewage treatment plant according to claim 1, wherein the water quality monitoring instrument of the anoxic tank is an anoxic tank nitrate instrument, and the water quality monitoring instrument of the aerobic tank is an aerobic tank nitrate instrument.
5. The carbon source optimized adding system of the AAO process sewage treatment plant according to claim 1, wherein the carbon source adding device further comprises a medicine adding tank, an electromagnetic flow meter and an ultrasonic liquid level meter, wherein a water inlet end of the diaphragm pump is connected with the medicine adding tank through a pipeline, a water outlet end of the diaphragm pump is connected with the electromagnetic flow meter through a pipeline, and a water outlet end of the electromagnetic flow meter is laid to a water inlet end of the anoxic tank through a pipeline; the ultrasonic liquid level meter is connected with the control system and arranged on the medicine adding tank; the electromagnetic flowmeter is connected with the control system.
6. the carbon source optimizing and feeding system of the AAO process sewage treatment plant according to claim 1, wherein the wall-through pump is arranged at the end of the aerobic tank and is bidirectionally connected with a variable frequency controller, and the variable frequency controller is bidirectionally connected with a control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920241828.4U CN209740814U (en) | 2019-02-26 | 2019-02-26 | Carbon source optimizing and adding system for AAO process sewage treatment plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920241828.4U CN209740814U (en) | 2019-02-26 | 2019-02-26 | Carbon source optimizing and adding system for AAO process sewage treatment plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209740814U true CN209740814U (en) | 2019-12-06 |
Family
ID=68708212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920241828.4U Active CN209740814U (en) | 2019-02-26 | 2019-02-26 | Carbon source optimizing and adding system for AAO process sewage treatment plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209740814U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109704463A (en) * | 2019-02-26 | 2019-05-03 | 沧州市供水排水集团有限公司 | A kind of AAO process spent water treatment plant carbon source optimizing dosing system |
| CN111777164A (en) * | 2020-07-28 | 2020-10-16 | 江苏复星节能环保有限公司 | TN accurate control system |
-
2019
- 2019-02-26 CN CN201920241828.4U patent/CN209740814U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109704463A (en) * | 2019-02-26 | 2019-05-03 | 沧州市供水排水集团有限公司 | A kind of AAO process spent water treatment plant carbon source optimizing dosing system |
| CN109704463B (en) * | 2019-02-26 | 2024-03-26 | 沧州市供水排水集团有限公司 | Carbon optimization feeding system of AAO process sewage treatment plant |
| CN111777164A (en) * | 2020-07-28 | 2020-10-16 | 江苏复星节能环保有限公司 | TN accurate control system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109704463B (en) | Carbon optimization feeding system of AAO process sewage treatment plant | |
| CN110862188B (en) | Chemical phosphorus removal accurate dosing system and control method | |
| CN107986428B (en) | Sewage treatment accurate aeration method | |
| CN106495321B (en) | Biological tank process optimization and operation control system and its control method | |
| CN104102255A (en) | Ammonia nitrogen coupling dissolved oxygen aeration energy-saving control system and control method | |
| CN109809560B (en) | Device and method for accurately feeding and controlling carbon source in multi-point water inlet multi-stage A/O process | |
| CN101143750A (en) | Control device and method for four-section water-feeding A/O technique water-feeding flow rate distribution process | |
| CN209740814U (en) | Carbon source optimizing and adding system for AAO process sewage treatment plant | |
| CN104763644B (en) | A kind of control method of dynamic lower sewage treatment plant residual sludge pump optimizing operation control device | |
| CN102491598B (en) | Sewage disposal system | |
| CN210855457U (en) | Aeration control system | |
| CN102053615B (en) | Control system and control method of unsteady-state sectional influent water depth nitrogen and phosphorus removal process | |
| CN216141333U (en) | Carbon source adding optimization control system of AOA + MABR coupling process | |
| CN113023889A (en) | Carbon source adding optimization control system and method for AOA + MABR coupling process | |
| CN202369475U (en) | Sewage treatment system | |
| CN209815777U (en) | Accurate carbon source adding control device for multi-point water inlet multi-stage A/O process | |
| CN216997850U (en) | Carbon source adding device for AAO process sewage treatment | |
| CN111138046A (en) | Rear denitrification and denitrification filter device based on depth upgrading and treatment process thereof | |
| CN111115987A (en) | Standard IV-class water standard-extraction transformation device for sewage and treatment process thereof | |
| CN207792906U (en) | Water inlet managing and control system for high-salt wastewater chemical industrial park composite wastewater treatment plant | |
| CN110436628A (en) | A kind of improved oxidation ditch biochemical wastewater treatment system | |
| CN214004188U (en) | Biological continuous reaction intelligent system | |
| CN213231944U (en) | VFL sewage treatment equipment | |
| CN210710945U (en) | Landfill leachate short-cut nitrification and denitrification biological denitrification device | |
| CN211770864U (en) | Standard IV-class water standard-extracting and reforming device for sewage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |