CN117088537A - Sewage treatment automatic regulating system - Google Patents
Sewage treatment automatic regulating system Download PDFInfo
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- CN117088537A CN117088537A CN202310273650.2A CN202310273650A CN117088537A CN 117088537 A CN117088537 A CN 117088537A CN 202310273650 A CN202310273650 A CN 202310273650A CN 117088537 A CN117088537 A CN 117088537A
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- sewage
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- central control
- control unit
- real time
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- 239000010865 sewage Substances 0.000 title claims abstract description 88
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 66
- 238000012544 monitoring process Methods 0.000 claims abstract description 44
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 23
- 239000001301 oxygen Substances 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 20
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000000460 chlorine Substances 0.000 claims abstract description 15
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 15
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 9
- 239000012528 membrane Substances 0.000 claims abstract description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052698 phosphorus Inorganic materials 0.000 claims description 5
- 239000011574 phosphorus Substances 0.000 claims description 5
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 4
- 239000003344 environmental pollutant Substances 0.000 claims description 3
- 231100000719 pollutant Toxicity 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 230000002035 prolonged effect Effects 0.000 claims 3
- 239000002699 waste material Substances 0.000 claims 2
- 238000001514 detection method Methods 0.000 claims 1
- 238000004458 analytical method Methods 0.000 abstract description 3
- 238000005842 biochemical reaction Methods 0.000 description 5
- 239000010802 sludge Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000004062 sedimentation Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 238000004148 unit process Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- 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
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
-
- 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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/16—Total nitrogen (tkN-N)
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/22—O2
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
-
- 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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
-
- 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
Landscapes
- Life Sciences & Earth Sciences (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)
- Activated Sludge Processes (AREA)
Abstract
The invention discloses an automatic sewage treatment regulating system which comprises a sewage raw water on-line monitoring unit, a sewage outlet on-line monitoring unit, a dissolved oxygen on-line monitoring unit, a residual chlorine on-line monitoring unit, a disinfection dosing unit, a pretreatment unit, a biochemical treatment unit, an MBR (membrane bioreactor) unit, an intelligent central control unit and the like. The invention monitors the parameters of each key technical point in real time on line in the sewage treatment process, and feeds corresponding data back to the intelligent central control system in real time for analysis, so as to control and regulate the operation working condition of each subunit, thereby solving the phenomenon of unqualified water quality caused by the fluctuation of water quality and water quantity of inflow water, the fluctuation of the content of dissolved oxygen of a biochemical unit, the fluctuation of the content of residual chlorine in a clean water tank and other factors in the sewage treatment process. Finally, the effluent quality is ensured to meet the national emission standard requirement.
Description
Technical field:
the invention relates to a technology for monitoring and feeding back various pollution parameters (such as total phosphorus, COD, SS, total nitrogen, ammonia nitrogen, PH and the like) in real time and dynamically regulating various unit processes of sewage treatment in real time according to monitoring values in the sewage treatment process, in particular to an automatic intervention pre-regulating system for indexes of the sewage treatment process.
The background technology is as follows:
water pollution is one of the urgent problems that humans need to solve. The nature of the sub-processes of sewage treatment, such as physics, chemistry, biology and the like, is that organic carbon and nitrogen pollutants in sewage are oxidized and degraded through microbial biochemical reaction, so that the water quality index (such as total phosphorus, COD, SS, total nitrogen, ammonia nitrogen, PH and the like) of the treated sewage meets the sewage discharge index standard.
Currently, sewage treatment plants in various places adopt a rough management mode, and a 24 uninterrupted operation mechanism is implemented. Aiming at the whole sewage treatment process, only the treatment units are separately managed, the trend change of some parameters in the sewage treatment process has no direct intervention capability, and only once unqualified parameters appear in the sewage treatment process, professional technical operation and maintenance personnel are required to go to on-site command treatment. Thus, serious hysteresis occurs in the treatment of the problems, and even the sewage treatment of the whole sewage plant does not reach the standard, and the sewage plant is stopped.
The invention comprises the following steps:
the invention provides an automatic sewage treatment regulating system, wherein a sewage raw water real-time monitoring unit synchronously transmits sewage raw water quality indexes to an intelligent central control unit, and the intelligent central control unit analyzes the raw water quality indexes and trend, so that the opening of a sewage inlet valve is effectively controlled according to analysis data to regulate the quantity of sewage inlet. And further, the effective relation of adjusting biochemical reaction time according to the raw water quality condition is realized, and finally, the qualified safety of various water quality indexes of sewage treatment is ensured, and the discharge requirement is met.
The dissolved oxygen on-line monitoring unit in the system monitors the concentration of the dissolved oxygen in the water in the biochemical treatment unit in real time, and transmits related data to the intelligent central control unit in real time, the intelligent central control unit analyzes according to the numerical value of the dissolved oxygen monitoring unit, controls the valve on each oxygen supply pipeline to adjust the opening according to the process requirement and the program set by the system, and controls the fan to adjust the frequency, so that the anoxic, aerobic and MBR membrane units in the biochemical treatment unit can accurately supply oxygen according to the parameter values set by the system. Therefore, the influence of the oxygen content exceeding or lacking of the oxygen content on the whole treatment process of each treatment unit is avoided, and the qualified and standard discharge of the effluent is ensured.
The residual chlorine on-line monitoring unit in the system monitors the content of residual chlorine in the water in the clean water tank in real time, and transmits corresponding data to the intelligent central control unit in real time, the intelligent central control unit receives the residual chlorine data transmitted by the monitoring unit, analyzes the residual chlorine data, adjusts the dosing amount of the disinfection dosing unit to the clean water tank according to the set process parameters, and ensures that the effluent is qualified and discharged up to the standard.
The sewage outlet real-time monitoring unit in the system synchronously transmits the sewage outlet water quality index to the intelligent central control unit, and the intelligent central control unit analyzes the outlet water quality index and trend, so that the valve opening of a pipe section for controlling the biochemical treatment unit to return water and the frequency of a water return pump are effectively used for adjusting the quantity of the returned water in the biochemical reaction according to analysis data. And further, the effective relation of adjusting biochemical reaction time according to the water quality condition of the effluent is realized, and finally, the qualified safety of various water quality indexes of sewage treatment is ensured, and the discharge requirement is met.
Description of the drawings:
FIG. 1 is a process flow diagram of the sewage raw water after entering the sewage treatment automatic regulating system.
FIG. 2 is a control flow chart of the sewage treatment automatic regulating system.
The system in the figure 1 comprises a pretreatment unit (a pre-sedimentation tank, a grid and a regulating tank), a biochemical treatment unit (a fine grid, an A20 biochemical tank and a sedimentation tank), an MBR (membrane bioreactor) unit, a disinfection dosing unit, a sewage raw water online monitoring unit, a sewage water online monitoring unit, a dissolved oxygen online monitoring unit, a residual chlorine online monitoring unit and an intelligent central control unit.
The specific embodiment is as follows:
the invention discloses an automatic sewage treatment regulating system which comprises a sewage raw water on-line monitoring unit, a sewage outlet on-line monitoring unit, a dissolved oxygen on-line monitoring unit, a residual chlorine on-line monitoring unit, a disinfection dosing unit, a pretreatment unit, a biochemical treatment unit, an MBR (membrane bioreactor) unit, an intelligent central control unit and the like.
In the pretreatment stage, when sewage enters a sewage plant through a sewage pipeline, the sewage firstly passes through a pre-settling tank to settle substances with relatively large mass in raw water, the rest of sewage passes through a grid to filter out some large suspended substances, then the sewage enters an adjusting tank to adjust the water quality stably, buffer the sewage treatment load and prevent the system load from generating severe change, and stabilize the water quality, and meanwhile, a raw water online monitoring unit monitors the raw water in the adjusting tank in real time online and transmits data to an intelligent central control unit, and the central control unit adjusts the opening of an electric valve of the sewage inlet pipeline according to the water quality condition of the inlet water.
In the biochemical treatment stage, after the sewage is lifted by a lifting pump of the regulating tank, fine physical particles contained in the sewage are removed through a fine grid, the sewage enters the biochemical treatment tank, and after the sewage enters the biochemical treatment tank, the sewage in the biochemical tank is used for carrying out reaction treatment in three stages of anaerobic, anoxic and aerobic, so that organic matters and nitrogen and phosphorus values in the sewage are removed, and the purpose of purifying the sewage is achieved. Meanwhile, the dissolved oxygen on-line monitoring unit monitors the content of dissolved oxygen in the sewage in the anoxic and aerobic sections in real time, transmits data to the intelligent central control unit in real time, and the central control unit analyzes the numerical value transmitted back by the monitoring unit, and adjusts the frequencies of an electric valve and an oxygen supply fan on an air supply pipeline according to the numerical value set by a process, so that the dissolved oxygen value of the sewage in the anoxic and aerobic treatment reaction stages is always in a relatively ideal range, the two treatment stages are ensured to fully react, and adverse effects on the whole biochemical treatment system are not caused by high or low dissolved oxygen. The water treated by the biochemical system enters a sedimentation tank, sewage after living reaction is settled and clarified in the sedimentation tank, sludge is discharged by a sludge pump for subsequent treatment after the sludge is settled to the bottom of the tank for a short time, and part of the sludge is returned to the biochemical tank.
In the MBR deepening treatment stage, supernatant liquid obtained after precipitation of water in the precipitation tank overflows into the MBR tank, and part of water passes through an MBR membrane to be subjected to deepening treatment, and tiny particles and some pollutants dissolved in the water are filtered out. Part of the substances intercepted by the sewage treatment device flows back to the biochemical treatment unit, and part of the substances are discharged along with the sludge to enter the next stage.
The sewage after passing through the MBR membrane enters a clean water tank, and the water after being treated by the MBR membrane is disinfected by a dosing disinfection unit in the process. At this time, the residual chlorine on-line monitoring unit monitors the residual chlorine value content in the clean water tank water in real time, and transmits the value to the intelligent central control unit in real time, the intelligent central control unit analyzes and processes according to the data transmitted back by the monitoring unit, and the frequency of the dosing pump of the dosing and sterilizing unit is adjusted according to the value, so that the aim of thorough sterilization is fulfilled. Ensure that the water energy after treatment reaches the emission standard.
The sewage outlet on-line monitoring unit also monitors the water quality condition of the clean water basin to be drained in real time, transmits data to the intelligent central control unit in real time, and directly discharges the sewage after the data are processed and analyzed by the intelligent central control unit, if the sewage is not up to the standard, the intelligent central control unit controls the opening degree of a water return pipeline valve of the biochemical treatment unit and the frequency of a water return pump, increases the reflux ratio, prolongs the residence time of unit sewage in biochemical reaction, ensures more complete reaction, ensures that the sewage reaches the discharge standard after treatment, and discharges the sewage smoothly.
Claims (5)
1. The invention discloses an automatic sewage treatment regulating system which comprises a sewage raw water on-line monitoring unit, a sewage outlet on-line monitoring unit, a dissolved oxygen on-line monitoring unit, a residual chlorine on-line monitoring unit, a disinfection dosing unit, a pretreatment unit, a biochemical treatment unit, an MBR (membrane bioreactor) unit, an intelligent central control unit and the like.
When the raw water on-line monitoring unit detects that the water quality parameters (such as total phosphorus, COD, SS, total nitrogen, ammonia nitrogen, PH and the like) of the inlet water exceed the water quality requirements of the sewage, the detection result is transmitted to the intelligent central control unit, and the intelligent central control unit adjusts the sewage inlet amount by controlling the opening of the electric adjusting ball valve of the sewage inlet pipeline, so that the residence time of the out-of-standard sewage in the whole treatment process flow is prolonged, and the biochemical treatment process is prolonged. Further, the biochemical treatment process of the sewage is ensured to be more sufficient, and the effect that the sewage exceeding the standard can be effectively treated and the sewage can be discharged after reaching the standard is achieved.
When the intelligent central control unit receives real-time parameters of dissolved oxygen in the biochemical unit, the frequency of the oxygen supply fan and the opening of the electric valve of the oxygen supply pipeline are adjusted through upper and lower limit parameters set by each unit (anoxic, aerobic and MBR tanks), so that the actual oxygen supply quantity is matched with the actual demand quantity of each process unit on site in real time. Not only can the oxygen demand of the biochemical system be hidden, but also the energy waste is not caused.
When the residual chlorine online monitoring system monitors the content of the residual chlorine in the effluent of the clean water tank in real time, data are transmitted to the intelligent central control unit in real time, and the intelligent central control unit regulates and controls the disinfection dosing system to control the dosing amount in the external clean water tank in real time according to the uploaded residual chlorine monitoring value, so that the dosing amount can be used for hiding the requirement of sufficient water discharge in real time, and waste caused by excessive dosing is avoided.
When the effluent online monitoring system monitors water quality parameters (such as total phosphorus, COD, SS, total nitrogen, ammonia nitrogen, PH and the like) of the discharged water outside the sewage plant in real time, data are transmitted to the intelligent central control unit in real time, and when the data exceeds the standard and fails to reach the discharge standard, the central control system adjusts the opening degree of a water return valve of the biochemical unit and the frequency of a water return pump according to the feedback value, so that the water return amount is increased, the residence time of sewage in the biochemical system is prolonged, pollutants in the sewage are removed more effectively, and the national discharge standard requirement is met.
2. The automatic sewage treatment regulation system of claim 1, wherein: the system is provided with a sewage raw water on-line monitoring unit and an intelligent central control unit, the sewage raw water on-line monitoring unit monitors the sewage inflow water quality condition in real time, corresponding data parameters are transmitted to the intelligent central control unit, the intelligent central control unit analyzes according to the data transmitted back by the on-line monitoring unit, and the opening of the sewage inflow electric valve is automatically adjusted according to the monitoring data.
3. The automatic sewage treatment regulation system of claim 1, wherein: the intelligent central control unit is used for adjusting the opening of the electric valve of the air supply pipeline and the frequency of the oxygen supply fan in real time according to the data fed back by the monitoring unit.
4. The automatic sewage treatment regulation system of claim 1, wherein: the intelligent central control unit adjusts the dosage of the disinfection dosing unit in the clean water tank in real time according to residual chlorine data transmitted by monitoring.
5. The automatic sewage treatment regulation system of claim 1, wherein: the system is provided with a sewage outlet on-line monitoring unit and an intelligent central control unit, wherein the sewage outlet on-line monitoring unit monitors the sewage outlet water quality in real time and transmits corresponding data parameters to the intelligent central control unit, and the intelligent central control unit analyzes according to the data transmitted back by the on-line monitoring unit and automatically adjusts the opening of an electric valve of a return pipeline of the biochemical treatment unit and the frequency of a return pump according to the monitoring data. And the water quality data of the effluent is recorded in the system in real time, and the central control page gives an alarm and processes out a scheme.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310273650.2A CN117088537A (en) | 2023-03-21 | 2023-03-21 | Sewage treatment automatic regulating system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310273650.2A CN117088537A (en) | 2023-03-21 | 2023-03-21 | Sewage treatment automatic regulating system |
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| Publication Number | Publication Date |
|---|---|
| CN117088537A true CN117088537A (en) | 2023-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310273650.2A Pending CN117088537A (en) | 2023-03-21 | 2023-03-21 | Sewage treatment automatic regulating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117929666A (en) * | 2024-01-22 | 2024-04-26 | 深圳云达腾华信息技术有限公司 | Quality control method and device for industrial wastewater on-line monitoring data, electronic equipment and storage medium |
-
2023
- 2023-03-21 CN CN202310273650.2A patent/CN117088537A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117929666A (en) * | 2024-01-22 | 2024-04-26 | 深圳云达腾华信息技术有限公司 | Quality control method and device for industrial wastewater on-line monitoring data, electronic equipment and storage medium |
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