CN114133076A - High-density sedimentation system for small-sized sewage treatment equipment and control method thereof - Google Patents
High-density sedimentation system for small-sized sewage treatment equipment and control method thereof Download PDFInfo
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- CN114133076A CN114133076A CN202111264553.4A CN202111264553A CN114133076A CN 114133076 A CN114133076 A CN 114133076A CN 202111264553 A CN202111264553 A CN 202111264553A CN 114133076 A CN114133076 A CN 114133076A
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- 238000004062 sedimentation Methods 0.000 title claims abstract description 92
- 239000010865 sewage Substances 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 46
- 230000001699 photocatalysis Effects 0.000 claims abstract description 44
- 239000003814 drug Substances 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000000126 substance Substances 0.000 claims abstract description 23
- 230000008569 process Effects 0.000 claims abstract description 14
- 238000004891 communication Methods 0.000 claims abstract description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims description 17
- 239000011574 phosphorus Substances 0.000 claims description 17
- 229940079593 drug Drugs 0.000 claims description 7
- 238000005189 flocculation Methods 0.000 claims description 7
- 230000016615 flocculation Effects 0.000 claims description 7
- 238000005286 illumination Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 4
- 150000002500 ions Chemical class 0.000 claims description 3
- -1 phosphorus ions Chemical class 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 14
- 230000005611 electricity Effects 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 230000003851 biochemical process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000007146 photocatalysis Methods 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 239000013043 chemical agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- AHEWZZJEDQVLOP-UHFFFAOYSA-N monobromobimane Chemical compound BrCC1=C(C)C(=O)N2N1C(C)=C(C)C2=O AHEWZZJEDQVLOP-UHFFFAOYSA-N 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- 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
- C02F2209/005—Processes using a programmable logic controller [PLC]
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- 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)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention relates to a high-density sedimentation system for small sewage treatment equipment and a control method thereof, wherein the sedimentation system comprises a secondary sedimentation tank, a PAC sedimentation tank, a PAM sedimentation tank, a PAC medicine dissolving tank, a PAM medicine dissolving tank and a control module, wherein a photocatalytic electrolysis module is arranged in the PAC sedimentation tank; the control module is in communication connection with the remote weather forecast terminal so as to acquire current and future weather information, and the control module instructs the operation of the photocatalytic electrolysis module and/or the PAC medicine dissolving tank to add medicine into the PAC sedimentation tank according to the weather information and water flow entering the secondary sedimentation tank. Compared with the prior art, the chemical dosing dephosphorization process and the photocatalytic electrolytic dephosphorization are cooperated to realize, the traditional PAC + PAM chemical dosing dephosphorization process is optimized, the photocatalytic electrolytic dephosphorization module is added, the module is embedded in the PAC dosing device, the size of equipment does not need to be additionally increased, and meanwhile, the 5G internet platform is used for realizing the automatic switching of the two modules under different weather conditions.
Description
Technical Field
The invention relates to the technical field of environmental protection, in particular to a high-density sedimentation system for small sewage treatment equipment and a control method thereof.
Background
Rural domestic sewage contains organic matter, nitrogen (N) and phosphorus (P) nutrient substances.
The emission concentration of each pollutant is generally as follows: CODcr is 250-400 mg/L, ammonia nitrogen is 30-40 mg/L, and total phosphorus is 2.5-5 mg/L. Aiming at main pollutants, various integrated sewage treatment equipment of different biochemical processes, such as MBBR, improved AAO, SBR, contact oxidation, MBR and other process equipment, are developed.
The equipment has good removal effect on COD and ammonia nitrogen in actual operation, and the effluent can meet the sewage discharge standard of corresponding areas. However, the total phosphorus of the effluent of the biochemical process still exceeds the standard due to wide dispersion of rural sewage and large change of water quantity and quality. Becomes a first difficult problem which troubles a plurality of operation enterprises.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a high-density sedimentation system for small sewage treatment equipment and a control method thereof, which are realized by adopting the cooperation of a chemical dosing dephosphorization process and photocatalytic electrolytic dephosphorization, optimize the traditional PAC + PAM chemical dosing dephosphorization process, add a photocatalytic electrolytic dephosphorization module, embed the module in a PAC dosing device, do not need to additionally increase the volume of the equipment, and realize automatic switching of two modules under different weather conditions by means of a 5G internet platform.
The purpose of the invention can be realized by the following technical scheme:
a first object of the present technical solution is to protect a high-density sedimentation system for a small-sized sewage treatment apparatus, comprising: two heavy ponds, PAC sedimentation tank, PAM sedimentation tank, PAC dissolve medicine jar, PAM dissolve medicine jar, control module, wherein specifically:
the PAC sedimentation tank is connected with the PAC sedimentation tank, and a photocatalytic electrolysis module is arranged in the PAC sedimentation tank;
the PAM sedimentation tank is connected with the PAC sedimentation tank;
the inclined tube sedimentation tank is connected with the PAM sedimentation tank;
the output end of the PAC medicine dissolving tank is connected with the PAC sedimentation tank;
the output end of the PAM dissolving tank is connected with the PAM sedimentation tank;
the control module is in communication connection with the remote weather forecast terminal so as to acquire current and future weather information, and the control module instructs the operation of the photocatalytic electrolysis module and/or the PAC medicine dissolving tank to add medicine into the PAC sedimentation tank according to the weather information and water flow entering the secondary sedimentation tank.
Further, the control module is a PLC control module.
The photocatalytic electrolysis control actuator is electrically connected with the control module at the input end, and is electrically connected with the photocatalytic electrolysis module at the output end.
The PAC dosing control actuator is electrically connected with the control module and controls the on-off of current transmitted to the PAC dosing pump so as to control the dosing process of driving the PAC dissolving tank to the PAC sedimentation tank.
Further, still including PAM that mutual electricity is connected with medicine control executor and PAM dosing pump, PAM add medicine control executor with the control module electricity is connected, PAM adds the break-make of medicine control executor control input to PAM dosing pump current to this control drive PAM dissolves the medicine jar and adds the medicine process to the PAM sedimentation tank.
Further, the photocatalytic electrolysis control actuator comprises an electrolysis power supply and an electrolysis control electromagnetic switch, and the electrolysis control electromagnetic switch is electrically connected with the control module.
Further, the PAC dosing control actuator and the PAM dosing control actuator both comprise a power supply and an electromagnetic switch, and the electromagnetic switch is electrically connected with the control module.
Furthermore, the remote weather forecast terminal comprises a computer terminal and a 5G signal radio frequency module, the control module is connected with the 5G signal receiving module, and the 5G signal radio frequency module is used for sending current and future weather information to the 5G signal receiving module.
Further, the output end or the output end of the secondary sedimentation tank is provided with a water flow sensor, and the water flow sensor is electrically connected with the control module.
Furthermore, a sludge discharge valve is arranged at the bottom of the inclined tube sedimentation tank.
A second object of the present technical solution is to protect a control method of the above high-density sedimentation system for a small-sized sewage treatment apparatus, comprising the steps of:
when water inflow is stable and weather is good, namely weather forecast of a remote terminal is good and illumination intensity exceeds a threshold value, the PLC control module instructs to stop the PAC dosing control actuator, the photocatalytic electrolysis control actuator is started, the photocatalytic electrolysis module starts to work at the moment, current is generated through photocatalysis and drives the electrode plate to start electrolysis to generate Al3+Ions and chemical flocculation is generated;
when the weather is poor and the water inflow is increased, namely the weather forecast of a remote terminal is poor, the illumination intensity is lower than a threshold value or the water flow entering a secondary sedimentation tank exceeds the threshold value, the PLC control module instructs to start the PAC dosing control actuator and instructs to stop the photocatalytic electrolysis control actuator, the PAC dosing control actuator is opened at the moment, the PAC medicine dissolving tank starts to stir, the PAC dosing pump is started, and the PAC dosing pump reacts with phosphorus ions in water by dosing the PAC and generates chemical flocculation.
Compared with the prior art, the invention has the following technical advantages:
1) the invention aims to optimize the traditional PAC + PAM chemical dosing dephosphorization process, add a photocatalytic electrolytic dephosphorization module, embed the module in a PAC dosing device, do not need to additionally increase the volume of equipment, and realize automatic switching of two modules under different weather conditions by means of a 5G internet platform. The total phosphorus of the incoming water is reacted with PAC and PAM to generate flocculent precipitate, and finally, the flocculent precipitate is effectively removed by virtue of inclined tube precipitation.
2) This technical scheme is on traditional chemical dephosphorization technology module, and embedded novel photocatalysis electrolysis dephosphorization module founds 5G internet platform, realizes different water yields, and remote control switches under the different weather conditions can reduce fortune dimension work load, can save medicament and electric quantity energy consumption again, can guarantee system's total phosphorus removal efficiency of water simultaneously, ensures that the total phosphorus of water is stable up to standard.
3) The technical scheme mainly adopts a technology of synergy of a chemical dosing dephosphorization process and photocatalytic electrolytic dephosphorization, wherein a photocatalytic electrolytic dephosphorization module is embedded into an original chemical dosing dephosphorization PAC device, a 5G module is installed in a PLC control cabinet of integrated sewage treatment equipment, weather change and water quantity change control logics are compiled, the control module can automatically switch a dephosphorization mode according to the variable control logics, and operation and maintenance personnel only need to remotely monitor, thereby finally realizing the maximization of a dephosphorization function of the system.
Drawings
Fig. 1 is a schematic structural diagram of a high-density sedimentation system for a small-sized sewage treatment apparatus in the present technical solution.
In the figure: 1. the device comprises a secondary sedimentation tank 2, a PAC sedimentation tank 3, a PLC control module 4, a PAC dosing control actuator 5, a photocatalytic electrolysis module 6, a photocatalytic electrolysis control actuator 7, a PAC medicine dissolving tank 8, a PAC medicine adding pump 9, a PAM sedimentation tank 10, a PAM dosing control actuator 11, a PAM medicine adding pump 12, a PAM medicine dissolving tank 13, an inclined tube sedimentation tank 14 and a mud valve.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Applicants consider the following in the inventive concept process: according to the existing rural biological sewage discharge standard, the total phosphorus concentration of the effluent of equipment systems required by various regions is generally below 1mg/L or even 0.5mg/L, while the current mainstream phosphorus removal method chemically adds drugs to remove phosphorus. The sites of vast rural sewage treatment equipment are scattered, and phosphorus removal is carried out by adopting the single method, so that the labor cost, the material cost and the equipment energy consumption cost are inevitably and greatly improved, and the operation and maintenance of later projects are not facilitated. The technical scheme is extremely necessary to design as follows: a photocatalytic electrolytic dephosphorization module is added at the back end of a biochemical process, and is cooperated with a chemical dosing dephosphorization module, a weather forecast and a water inlet flow meter are linked through a '5G Internet + platform', so that automatic switching of the dephosphorization dual modules under different scenes is realized, a system is switched to the photocatalytic electrolytic module to stably remove total phosphorus under a stable water inlet flow state on sunny days, and the system is automatically switched to the chemical dosing module according to background feedback when the water amount is increased on rainy days.
The high-density sedimentation system for small-sized sewage treatment equipment that this technical scheme indicates includes: a secondary sedimentation tank 1, a PAC sedimentation tank 2, a PAM sedimentation tank 9, a sedimentation tank, a PAC drug dissolving tank 7, a PAM drug dissolving tank 12 and a control module, wherein, the reference is specifically made to figure 1. The connection in this technical scheme is basically through the pipeline connection.
Wherein the secondary sedimentation tank 1 is connected with other upstream common sedimentation tanks. The PAC sedimentation tank 2 is connected with the PAC sedimentation tank 2, and a photocatalytic electrolysis module 5 is arranged in the PAC sedimentation tank 2; the PAM sedimentation tank 9 is connected with the PAC sedimentation tank 2; the inclined tube sedimentation tank 13 is connected with the PAM sedimentation tank 9, and a sludge discharge valve 14 is arranged at the bottom of the inclined tube sedimentation tank 13. The output end of the PAC drug dissolving tank 7 is connected with the PAC sedimentation tank 2; the output end of the PAM medicine dissolving tank 12 is connected with the PAM sedimentation tank 9.
During specific implementation, the control module is in communication connection with a remote weather forecast terminal so as to acquire current and future weather information, and the control module instructs the operation of the photocatalytic electrolysis module 5 and/or the PAC drug dissolving tank 7 to add drugs into the PAC sedimentation tank 2 according to the weather information and water flow entering the secondary sedimentation tank 1. And when the model is selected specifically, the control module is a PLC control module 3. The PAC chemical feeding control actuator 4 is electrically connected with the control module, and the PAC chemical feeding control actuator 4 controls the on-off of current transmitted to the PAC chemical feeding pump 8 so as to control and drive the PAC chemical dissolving tank 7 to feed the PAC chemical to the PAC sedimentation tank 2. Still including PAM that mutual electricity is connected with medicine control executor 10 and PAM dosing pump 11, PAM add medicine control executor 10 with the control module electricity is connected, PAM adds the break-make of medicine control executor 10 control input to PAM dosing pump 11 electric current to this control drive PAM dissolves the medicine jar 12 and adds the medicine process to PAM sedimentation tank 9.
In specific implementation, the input end of the photocatalytic electrolysis control actuator 6 is electrically connected with the control module, and the output end of the photocatalytic electrolysis control actuator 6 is electrically connected with the photocatalytic electrolysis module 5. The photocatalytic electrolysis control actuator 6 comprises an electrolysis power supply and an electrolysis control electromagnetic switch, and the electrolysis control electromagnetic switch is electrically connected with the control module. PAC adds medicine control executor 4 and PAM and adds medicine control executor 10 and all include power supply and electromagnetic switch, electromagnetic switch with control module electricity is connected.
During specific implementation, the remote weather forecast terminal comprises a computer terminal and a 5G signal radio frequency module, a 5G signal receiving module is connected to the control module, and the 5G signal radio frequency module is used for sending current and future weather information to the 5G signal receiving module.
During specific implementation, the output end or the output end of the secondary sedimentation tank 1 is provided with a water flow sensor, and the water flow sensor is electrically connected with the control module.
When the system in the technical scheme is in specific operation:
1. after the effluent of the biochemical system is precipitated by a secondary sedimentation tank 1, the supernatant enters a PAC sedimentation tank 2.
2. When water inflow is stable and weather is good, namely weather forecast of a remote terminal is good and illumination intensity exceeds a threshold value, the PLC control module 3 automatically turns off the PAC dosing control actuator 4 under the remote control of the 5G module, turns on the control actuator 6 of the photocatalytic electrolysis module 5, at the moment, the photocatalytic electrolysis module 5 starts to work, generates current through photocatalysis and drives the electrode plate to start electrolysis to generate Al3+Ions and chemical flocculation occurs.
3. When the weather is poor and the inflow water is increased, namely the weather forecast of a remote terminal is poor, the illumination intensity is lower than a threshold value or the water flow entering the secondary sedimentation tank 1 exceeds the threshold value, the PLC control module 3 automatically instructs to start the PAC dosing control actuator 4 under the remote control of the 5G module, instructs to stop the control actuator of the photocatalytic electrolysis module 5, at the moment, the PAC dosing control actuator 4 starts to work, the PAC dissolving tank 7 starts to stir, and the PAC dosing pump 8 starts. PAC is added to react with phosphorus ions in water and generate chemical flocculation.
And the mixture in the PAM sedimentation tank enters an inclined tube sedimentation tank 13 to accelerate the sedimentation of flocs. Finally, the supernatant effluent reaches the standard and is discharged into a natural water body, and the chemical sludge precipitated at the bottom is periodically discharged through a valve 14 and is intensively cleaned.
The dephosphorization double-module in the technical scheme is verified through experiments, the workload of field operation and maintenance personnel is effectively reduced, the dosage of chemical agents is reduced, meanwhile, due to the adoption of the novel photocatalytic electrolysis module, the consumption of the traditional electrolysis method on electric quantity is avoided, the energy consumption is reduced, and the operation and maintenance cost is integrally reduced on the premise of stable dephosphorization.
By means of double-module phosphorus removal, the two technical advantages are complemented, the phosphorus removal effect of the whole process is greatly improved, and the total phosphorus of effluent reaches the first-grade sewage A discharge standard (less than or equal to 0.5 mg/L).
The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (10)
1. A high density sedimentation system for a small scale sewage treatment apparatus, comprising:
a secondary sedimentation tank (1);
the PAC sedimentation tank (2) is connected with the PAC sedimentation tank (2), and a photocatalytic electrolysis module (5) is arranged in the PAC sedimentation tank (2);
a PAM sedimentation tank (9) connected with the PAC sedimentation tank (2);
the inclined tube sedimentation tank (13) is connected with the PAM sedimentation tank (9);
the output end of the PAC drug dissolving tank (7) is connected with the PAC sedimentation tank (2);
the output end of the PAM medicine dissolving tank (12) is connected with the PAM sedimentation tank (9);
and the control module is in communication connection with the remote weather forecast terminal so as to acquire current and future weather information, and instructs the photocatalytic electrolysis module (5) to operate and/or the PAC medicine dissolving tank (7) to add medicine into the PAC sedimentation tank (2) according to the weather information and the water flow entering the secondary sedimentation tank (1).
2. The high density sedimentation system for a small scale sewage treatment apparatus according to claim 1, wherein the control module is a PLC control module (3).
3. The high-density sedimentation system for a small-sized sewage treatment apparatus according to claim 1, further comprising a photocatalytic electrolysis control actuator (6), wherein an input end of the photocatalytic electrolysis control actuator (6) is electrically connected with the control module, and an output end of the photocatalytic electrolysis control actuator (6) is electrically connected with the photocatalytic electrolysis module (5).
4. The high-density sedimentation system for small-scale sewage treatment equipment according to claim 1, further comprising a PAC dosing control actuator (4) and a PAC dosing pump (8) electrically connected with each other, wherein the PAC dosing control actuator (4) is electrically connected with the control module, and the PAC dosing control actuator (4) controls the on-off of the current supplied to the PAC dosing pump (8), thereby controlling the dosing process of driving the PAC dissolving tank (7) to the PAC sedimentation tank (2).
5. The high-density sedimentation system for small-sized sewage treatment equipment according to claim 4, further comprising a PAM dosing control actuator (10) and a PAM dosing pump (11) electrically connected with each other, wherein the PAM dosing control actuator (10) is electrically connected with the control module, and the PAM dosing control actuator (10) controls on-off of current supplied to the PAM dosing pump (11), so as to control a dosing process of driving the PAM dissolving tank (12) to the PAM sedimentation tank (9).
6. The high-density precipitation system for small-scale sewage treatment equipment according to claim 3, wherein said photocatalytic electrolysis control actuator (6) comprises an electrolysis power supply and an electrolysis control electromagnetic switch, said electrolysis control electromagnetic switch being electrically connected with said control module.
7. The high density sedimentation system for small scale sewage treatment plants according to claim 5, wherein the PAC and PAM dosing control actuators (4, 10) each comprise a power supply and an electromagnetic switch electrically connected to the control module.
8. The high-density sedimentation system for small-sized sewage treatment equipment according to claim 1, wherein the remote weather forecast terminal comprises a computer terminal and a 5G signal radio frequency module, the control module is connected with a 5G signal receiving module, and the 5G signal radio frequency module is used for sending current and future weather information to the 5G signal receiving module.
9. The high-density sedimentation system for a small-sized sewage treatment facility according to claim 1, wherein the output or the output of the secondary sedimentation tank (1) is provided with a water flow sensor, and the water flow sensor is electrically connected with the control module.
10. A control method of the high-density sedimentation system for a small-sized sewage treatment apparatus according to any one of claims 1 to 9, comprising the steps of:
when water inflow is stable and weather is good, namely weather forecast of a remote terminal is good and illumination intensity exceeds a threshold value, the PLC control module (3) instructs to close the PAC dosing control actuator (4), the photocatalytic electrolysis control actuator (6) is opened, at the moment, the photocatalytic electrolysis module (5) starts to work, and current is generated through photocatalysisAnd driving the electrode plate to start electrolysis to produce Al3+Ions and chemical flocculation is generated;
when the weather is poor and the water inflow is increased, namely the weather forecast of a remote terminal is poor, the illumination intensity is lower than a threshold value or the water flow entering the secondary sedimentation tank (1) exceeds the threshold value, the PLC control module (3) instructs to start the PAC dosing control actuator (4) and instructs to stop the photocatalytic electrolysis control actuator (6), at the moment, the PAC dosing control actuator (4) is opened, the PAC dissolving tank (7) starts to stir, the PAC dosing pump (8) is started, and the PAC dosing pump reacts with phosphorus ions in water by dosing the PAC and generates chemical flocculation.
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| CN108946862A (en) * | 2018-07-23 | 2018-12-07 | 江苏澳洋生态园林股份有限公司 | A kind of landscape water water treatment technology |
| CN110482749A (en) * | 2019-08-21 | 2019-11-22 | 深圳市盘古环保科技有限公司 | A kind of coupling technique of advanced treatment of landfill leachate |
| CN213570041U (en) * | 2020-11-03 | 2021-06-29 | 淮南矿业(集团)有限责任公司 | Domestic sewage phosphorus removal device |
| CN112520828A (en) * | 2020-11-26 | 2021-03-19 | 北京首创股份有限公司 | Intermittent water inflow high-density sedimentation tank operation control system and method |
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