CN111573835A - Vertical type anti-variability sewage treatment device and treatment process - Google Patents
Vertical type anti-variability sewage treatment device and treatment process Download PDFInfo
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- CN111573835A CN111573835A CN202010413832.1A CN202010413832A CN111573835A CN 111573835 A CN111573835 A CN 111573835A CN 202010413832 A CN202010413832 A CN 202010413832A CN 111573835 A CN111573835 A CN 111573835A
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
Abstract
The invention relates to the technical field of water treatment, and particularly relates to and discloses a vertical type anti-variability sewage treatment device which comprises a water inlet pool and a vertical type tank body, wherein a water inlet pump is arranged in the water inlet pool, a water inlet is formed in the lower part of the vertical type tank body, the vertical type tank body comprises a biochemical region and a mud-water separation region from bottom to top, and further comprises an electric control system and a device room which are connected, a liquid level probe is arranged in the water inlet pool, the liquid level probe is connected to the electric control system, and the electric control system is further connected with the. The invention also discloses a corresponding process, which comprises the following steps: 1) the electric control system presets the corresponding relation, operation equipment and parameters of the water quantity of the water inlet pool and each operation process; 2) transmitting the monitoring water quantity signal to an electric control system, and comparing and selecting a corresponding operation process; 3) repeating step 2) or repeating steps 1) and 2). The vertical type anti-variability sewage treatment device and the treatment process save occupied land, are suitable for the condition of large water fluctuation while saving energy consumption, and are stable in operation.
Description
Technical Field
The invention relates to the technical field of water treatment, in particular to a vertical type anti-variability sewage treatment device and a treatment process.
Background
With the development of economy, the improvement of the rural living standard and the continuous increase of population, the comprehensive development scale of the rural area and the utilization intensity of the rural and town industries on resources are increasingly expanded, the environmental pollution and the ecological damage of the rural area become more serious, and the overall situation of the rural environment is not optimistic. The rural environment treatment is vigorously developed, and the problem of rural environmental pollution is urgently solved.
Rural sewage characteristics:
the sewage treatment device has the advantages of small sewage receiving area, small sewage quantity, large change coefficient and large water quality and water quantity fluctuation.
And some rural industrial wastewater and domestic sewage are discharged in a confluence manner, so that certain impact is caused to water quality.
And thirdly, rain and sewage are not shunted and underground water is infiltrated in some cases due to reasons of incapability of keeping up management and the like.
In general, the largest characteristic of the agricultural sewage treatment market is wide fluctuation of inlet water, so that a new sewage treatment technology with large inlet water fluctuation and stable operation should be selected for sewage treatment in new rural areas in China.
Except for agricultural sewage treatment, the wide fluctuation of inlet water also exists in other water treatment fields, such as the emergency field and the field of small-field station type treatment devices, and how to solve the problem of the influence of the wide fluctuation of inlet water on the running stability of equipment is very important. The problem can be alleviated to a certain extent only by increasing the water inlet pool, but the problem of insufficient water cannot be solved, and the cost is increased by increasing the water inlet pool, so that the symptoms are treated and the root causes are not treated obviously.
The existing integrated equipment generally has the defects of single mode and single process operation, and the aeration energy of a biochemical area cannot be reused, so that the known operation is unstable and resources are wasted. For example, the vertical integrated sewage treatment equipment based on the A2/O process with the application number of 201920012247.3 does not utilize gas energy in a biochemical area secondarily, has a single equipment process, cannot cope with the conditions of wide fluctuation of inlet water and even long-term insufficient inlet water and has insufficient polytropy resistance.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a vertical type anti-variability sewage treatment device and a treatment process, which have the advantages of small occupied area, low energy consumption and stable operation.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a vertical anti multiple change nature sewage treatment plant, includes the intake chamber, vertical jar of body, sets up the intake pump in the intake chamber, and the water inlet is opened in vertical jar of body lower part, and vertical jar of internal from bottom to top includes biochemical district, muddy water separation zone, still includes the electrical system and the equipment room that are connected, is provided with the liquid level probe in the intake chamber, the liquid level probe is connected to electrical system, and electrical system still connects the intake pump. Biochemical district include anoxic zone and good oxygen district, by the vertical separation of baffle on earth between two districts to at baffle upper portion intercommunication, the water inlet sets up in the anoxic zone, and good oxygen district bottom sets up aeration equipment, the mud-water separation district including smooth mud district and the sedimentation tank of intercommunication, two districts are by the vertical partition of baffle, smooth mud district bottom and good oxygen district top intercommunication set up the membrane heap in the sedimentation tank, the sedimentation tank top sets up the delivery port, sedimentation tank limit side bottom sets up the sedimentation tank bagger, sedimentation tank bagger and anoxic zone intercommunication. The gas collecting pipe is horizontally arranged at the bottom of the sedimentation tank, the gas stripping return pipe is vertically arranged, the oxygen eliminating zone is vertically arranged on the side wall of the vertical tank body, the end of the gas collecting pipe is communicated with the aerobic zone, the other end of the gas collecting pipe is connected to the gas stripping return pipe, the upper end of the gas stripping return pipe is communicated with the upper end of the oxygen eliminating zone, and a valve is arranged on the gas stripping return pipe.
The device saves the occupation of land, is convenient for make installation and fall and transport, also is convenient for collect biochemical region aeration energy, for the air stripping backward flow provides the energy, and the gas of collecting is lower than ordinary air oxygen content simultaneously, and the reducible dissolved oxygen of air stripping backward flow in-process brings into, reduces the influence to the oxygen deficiency environment, increases the steerable reflux ratio of valve, optimizes the technology operation. The membrane stack sets up in the sedimentation tank, and a pond is multi-purpose, saves space, can carry out sewage treatment according to different inflow automatic selection corresponding technology, when practicing thrift the energy consumption, adapts to the big condition of water yield fluctuation, and the operation is stable.
Preferably, the equipment room comprises a water production pump and a fan, one path of the fan is connected to the membrane stack, the other path of the fan is connected to the aeration device, an electric valve and a first manual valve are arranged between the fan and the membrane stack, a second manual valve is arranged between the fan and the aeration device, and the water production pump, the fan and the electric valve are all connected to an electric control system. The electric control system controls the water inlet pump, the water production pump, the fan and the electric valve, and different operation processes can be realized.
Preferably, the water inlet pump and the fan are provided with frequency converters. The water inlet flow and the air supply volume are suitable for different processes, and the process operation stability of the equipment is guaranteed.
Preferably, the bottom of the gas stripping return pipe is a three-way port, and one open port is arranged above the mud bucket of the sedimentation tank, so that better sedimentation and return of the mud are facilitated.
Preferably, the lower end of the oxygen-eliminating area is provided with an oxygen-eliminating area mud bucket, and the bottom of the oxygen-eliminating area mud bucket is lower than the bottom of the sedimentation tank mud bucket and is communicated with the oxygen-deficient area. The sludge is convenient to precipitate and return, and the collection of the inlet water gas is not influenced.
Preferably, the baffle extends downwards to the aerobic zone and inclines downwards towards one side of the slip zone. Facilitating the precipitation and falling of the sludge.
Preferably, the bottom of the sedimentation tank is obliquely arranged and is inclined downwards from the aerobic zone to the anoxic zone. Facilitating the sedimentation and the backflow of the sludge. Meanwhile, gas brought in by inlet water in the anoxic zone can be collected and enters the gas stripping return pipe, so that the inlet water gas is prevented from gathering at the top of the anoxic zone, and the tank capacity is reduced.
The vertical type multiple-property-resistant sewage treatment process using the vertical type multiple-property-resistant sewage treatment device comprises the following steps:
1) the electric control system presets the corresponding relation between the water quantity of the water inlet pool and each operation process, and presets operation equipment and parameters corresponding to each operation process;
2) monitoring the water quantity of the water inlet tank, transmitting a water quantity signal to an electric control system, comparing the signal with preset data, and selecting a corresponding operation process to perform sewage treatment;
3) repeating step 2) or repeating steps 1) and 2).
The corresponding process is automatically selected according to different water inflow for sewage treatment, so that the energy consumption is saved, the condition of large water fluctuation is adapted, and the operation is stable.
The corresponding relation between the water quantity of the water inlet pool and the operation process in the step 1) comprises the following steps:
a) when the water amount in the water inlet tank is less, the anoxic, aerobic and sedimentation treatment process is intermittently operated;
b) when the water amount in the water inlet tank is equal, operating anoxic, aerobic and sedimentation treatment processes;
c) when the water amount in the water inlet tank is large, operating anoxic, aerobic and MBR treatment processes;
d) when the water amount in the water inlet tank is excessive, the precipitation process is operated.
The process a) b) has less or medium water amount, an MBR membrane treatment is not used, only anoxic, aerobic and sedimentation treatment processes are operated intermittently or continuously, the process c) uses the MBR membrane treatment to meet treatment requirements when the water amount in the water inlet tank is more, the process d) only uses the sedimentation process when the water amount in the water inlet tank is more, and the process is suitable for the field of distributed rural domestic sewage treatment, because the agricultural sewage treatment field mostly meets rainstorm seasons, the treatment is not in time, the pollution is light, the process is suitable for quickly treating sewage by adopting the sedimentation process, and the sewage backflow in peasant households is avoided.
Preferably, when the process a) is operated, the fan is operated intermittently at a low frequency, the water inlet pump is opened intermittently, the electric valve is closed, the water outlet pump is closed, and the water inlet pump is closed during the operation of the fan;
when the process b) is operated, the fan continuously operates at low frequency, the water inlet pump operates at low frequency, the electric valve is closed, the water outlet pump is closed, the fan and the water inlet pump operate in a linkage manner, the fan is opened, and the water inlet pump can operate;
when the process c) is operated, the water inlet pump intermittently operates according to the high, low and high frequency of the liquid level, the fan independently and continuously operates at high frequency, the electric valve is opened, the water outlet pump operates, and water is intermittently produced;
and (4) when the process d) is operated, the water inlet pump is opened at high frequency, and the fan, the electric valve and the water outlet pump are all closed.
Preferably, the control system has a delayed response mechanism for the received inlet tank level signal. The frequent start and stop of the control system and the electromechanical equipment caused by the fluctuation of the water quantity of the water inlet pool are avoided, and the service life of the electromechanical equipment is prolonged.
The vertical type anti-variability sewage treatment device and the treatment process save occupied land, can automatically select corresponding processes to treat sewage according to different water inflow, are adaptive to the condition of large water fluctuation while saving energy consumption, and have strong adaptability and stable operation.
Drawings
Fig. 1 is a schematic structural diagram of a vertical type anti-variability sewage treatment device according to an embodiment of the present invention.
Fig. 2 is a schematic connection diagram of a fan according to an embodiment of the present invention.
In the figure 1, a water inlet pool; 2. a grid; 3. a water inlet pump; 4. a check valve; 5. a water inlet; 6. an anoxic zone; 7. a partition plate; 8. an aeration device; 9. emptying the air; 10. an air inlet; 11. an aerobic zone; 12. a vertical tank body; 13. a baffle plate; 14. a gas collecting pipe; 15. a mud slipping area; 16. stacking the films; 17. a sedimentation tank; 18. a valve; 19. a water outlet; 20. a gas stripping return pipe; 21. an oxygen elimination zone; 22. a liquid level probe; 23. an electronic control system; 24. a device room; 25. a water production pump; 26. a fan; 27. a mud bucket of the sedimentation tank; 28. a mud bucket in the oxygen elimination area; 29. an electrically operated valve; 30. a first manual valve; 31. a second manual valve.
Detailed Description
The present invention will be further described with reference to fig. 1-2 and the following detailed description.
A vertical type anti-variability sewage treatment device is shown in an attached figure 1 and comprises a water inlet pool 1 and a vertical tank body 12, wherein a water inlet pump 3 is arranged in the water inlet pool 1, a water inlet 5 is formed in the lower portion of the vertical tank body 12, the vertical tank body 12 comprises a biochemical region and a muddy water separation region from bottom to top, and further comprises an electric control system 23 and an equipment room 24 which are connected with each other, a liquid level probe 22 is arranged in the water inlet pool 1, the liquid level probe 22 is connected to the electric control system 23, and the electric control system 23 is further connected with the water inlet pump 3.
Biochemical district include anoxic zone 6 and aerobic zone 11, be vertically separated by baffle 7 on earth between two districts to in 7 upper portions of baffle intercommunication, water inlet 5 sets up in anoxic zone 6, aerobic zone 11 bottoms sets up aeration equipment 8, the mud-water separation district including smooth mud district 15 and the sedimentation tank 17 of intercommunication, two districts are by the vertical partition of baffle 13, smooth mud district 15 bottoms and aerobic zone 11 top intercommunication set up membrane heap 16 in the sedimentation tank 17, sedimentation tank 17 top sets up delivery port 19, sedimentation tank 17 avris bottom sets up sedimentation tank bagger 27, sedimentation tank bagger 27 and anoxic zone 6 intercommunication.
The plant room 24 comprises a water producing pump 25 and a fan 26, as shown in fig. 2, one path of the fan 26 is connected to the membrane stack 16, the other path is connected to the aeration device 8, an electric valve 29 and a first manual valve 30 are arranged between the fan 26 and the membrane stack 16, a second manual valve 31 is arranged between the fan 26 and the aeration device 8, and the water producing pump 25, the fan 26 and the electric valve 29 are all connected to the electric control system 23.
The water inlet pump 3 and the fan 26 are provided with frequency converters.
The gas collecting pipe 14 is horizontally arranged at the bottom of the sedimentation tank 17, the gas stripping return pipe 20 is vertically arranged, the oxygen eliminating zone 21 is vertically arranged on the side wall of the vertical tank body 12, one end of the gas collecting pipe 14 is communicated with the aerobic zone 11, the other end of the gas collecting pipe 14 is connected to the gas stripping return pipe 20, the upper end of the gas stripping return pipe 20 is communicated with the upper end of the oxygen eliminating zone 21, and the gas stripping return pipe 20 is provided with a valve 18.
The bottom of the gas stripping return pipe 20 is a three-way port, and one open port is opened above a mud bucket 27 of the sedimentation tank.
The lower end of the anoxic zone 21 is provided with an anoxic zone mud bucket 28, and the bottom of the anoxic zone mud bucket 28 is lower than the bottom of the sedimentation tank mud bucket 27 and is communicated with the anoxic zone 6.
The baffle 13 extends downwards to the aerobic zone 11 and inclines downwards to the side of the sludge sliding zone 15.
The bottom of the sedimentation tank 17 is arranged obliquely and is inclined downwards from the aerobic zone 11 to the anoxic zone 6.
The vertical tank body 12 is integrally designed by a carbon steel anti-corrosion vertical square tank, the water inlet 5 is in flange connection, the membrane stack 16 is a hollow fiber curtain type membrane, the aeration device 8 is an aeration disc, the gas collecting pipe 14 and the gas return pipe 20 are stainless steel pipes, the valve 18 is a manual ball valve, the top of the vertical tank body 12 is also provided with an air inlet 10, the air inlet 10 is connected to the aeration device 8, the bottom of the aerobic zone 11 is provided with an air outlet 9, a plurality of aeration pipelines are also provided with an air flow meter, a dosing system is further arranged in the equipment room 24, the water outlet 19 is arranged on the upper portion of the sedimentation tank 17, and one side of the vertical tank body.
Still be provided with grid 2 in the intake chamber 1, grid 2 sets up twice, 5mm one, 1mm one, is equipped with check valve 4 on the inlet channel, prevents that mud refluences in the device from advancing the intake chamber.
The vertical type multiple-property-resistant sewage treatment process using the vertical type multiple-property-resistant sewage treatment device comprises the following steps:
1) the electric control system presets the corresponding relation between the water quantity of the water inlet pool and each operation process, and presets operation equipment and parameters corresponding to each operation process;
2) monitoring the water quantity of the water inlet tank, transmitting a water quantity signal to an electric control system, comparing the signal with preset data, and selecting a corresponding operation process to perform sewage treatment;
3) repeating step 2) or repeating steps 1) and 2).
The corresponding relation between the water quantity of the water inlet pool and the operation process in the step 1) comprises the following steps:
a) when the water amount in the water inlet tank is less, the anoxic, aerobic and sedimentation treatment process is intermittently operated;
b) when the water amount in the water inlet tank is equal, operating anoxic, aerobic and sedimentation treatment processes;
c) when the water amount in the water inlet tank is large, operating anoxic, aerobic and MBR treatment processes;
d) when the water amount in the water inlet tank is excessive, the precipitation process is operated.
When the process a) is operated, the fan is operated intermittently at low frequency, the water inlet pump is opened intermittently, the electric valve is closed, the water outlet pump is closed, and the water inlet pump is closed during the operation of the fan;
when the process b) is operated, the fan continuously operates at low frequency, the water inlet pump operates at low frequency, the electric valve is closed, the water outlet pump is closed, the fan and the water inlet pump operate in a linkage manner, the fan is opened, and the water inlet pump can operate;
when the process c) is operated, the water inlet pump intermittently operates according to the high, low and high frequency of the liquid level, the fan independently and continuously operates at high frequency, the electric valve is opened, the water outlet pump operates, and water is intermittently produced;
and (4) when the process d) is operated, the water inlet pump is opened at high frequency, and the fan, the electric valve and the water outlet pump are all closed.
The control system has a delayed reaction mechanism for the received water inlet pool liquid level signal.
In the embodiment, when the water amount in the water inlet tank is only 10% -30%, the process a) is operated; when the water amount in the water inlet tank is 30-60% of the designed water amount, the process b) is operated; when the water amount in the water inlet tank is 60% -100% of the designed water amount, the process c) is operated; and (d) operating the process when the water amount in the water inlet tank exceeds the designed water amount.
The embodiment adopts an overground integrated design, sewage automatically flows into a water inlet tank 1, pretreated sewage enters the bottom of an anoxic zone 6 through a water inlet 5 by a water inlet pump 3, sequentially enters the anoxic zone 6 and an aerobic zone 11 for biochemical action, and then is subjected to sludge-water separation to obtain water by a sludge-water separation zone. The mixed liquid passes through the oxygen elimination zone 21 from the gas collecting pipe 14 and the gas stripping return pipe 20 for oxygen elimination and then enters the anoxic zone 6 to complete the return of the nitrifying liquid and the sludge. The mixed liquid in the aerobic zone 11 gets into sedimentation tank 17 through smooth mud district 15, through membrane separation technique or sedimentation tank mud-water separation, discharge up to standard, and mixed liquid can carry out most mud landing in smooth mud district 15, and mud landing returns aerobic zone 11, reduces the mud that gets into the sedimentation tank, optimizes the precipitation effect, slows down the formation that 16 membranes of membrane stack pollute, reduces fortune dimension work. Through a series of biochemical actions, the purposes of nitrogen and phosphorus removal and partial removal of organic matters are achieved.
The treatment scale of the embodiment is 50T/D, the test station is positioned in a village-level sewage treatment station, and the inlet water is the water quality of common domestic sewage. The effluent water quality standard executes the first-class A standard of GB18918-2002 discharge Standard of pollutants for municipal wastewater treatment plants. After a test period of one year, the effluent quality is stable and reaches the standard.
In summary, the present invention is only a preferred embodiment, and is not intended to limit the scope of the invention, and all equivalent changes and modifications made in the content of the claims should be considered as the technical scope of the invention.
Claims (10)
1. The utility model provides a vertical anti multiple modification sewage treatment plant, includes intake pool (1), the vertical jar of body (12), sets up intake pump (3) in intake pool (1), and water inlet (5) are opened in the vertical jar of body (12) lower part, include biochemical district, mud-water separation district in the vertical jar of body (12) from bottom to top, its characterized in that: the device comprises an electric control system (23) and an equipment room (24) which are connected, wherein a liquid level probe (22) is arranged in a water inlet tank (1), the liquid level probe (22) is connected to the electric control system (23), the electric control system (23) is also connected with a water inlet pump (3), a biochemical area comprises an anoxic area (6) and an aerobic area (11), the two areas are vertically separated by a bottom partition plate (7) and are communicated with each other at the upper part of the partition plate (7), a water inlet (5) is arranged in the anoxic area (6), an aeration device (8) is arranged at the bottom of the aerobic area (11), a mud-water separation area comprises a mud sliding area (15) and a sedimentation tank (17) which are communicated with each other, the two areas are vertically separated by a baffle plate (13), the bottom of the mud sliding area (15) is communicated with the top of the aerobic area (11), a membrane pile (16) is arranged in the sedimentation tank (17), a water outlet (19) is arranged at the top of the sedimentation tank, the sedimentation tank mud bucket (27) is communicated with the anoxic zone (6), the sedimentation tank mud bucket further comprises a gas collecting pipe (14), a gas stripping return pipe (20) and an oxygen eliminating zone (21), the gas collecting pipe (14) is horizontally arranged at the bottom of the sedimentation tank (17), the gas stripping return pipe (20) is vertically arranged, the oxygen eliminating zone (21) is vertically arranged on the side wall of the vertical tank body (12), one end of the gas collecting pipe (14) is communicated with the aerobic zone (11), the other end of the gas collecting pipe (14) is connected to the gas stripping return pipe (20), the upper end of the gas stripping return pipe (20) is communicated with the upper end of the oxygen eliminating zone (21), and a valve (18) is arranged on the.
2. The vertical type anti-variability sewage treatment device according to claim 1, characterized in that: the equipment room (24) comprises a water production pump (25) and a fan (26), one path of the fan (26) is connected to the membrane stack (16), the other path of the fan is connected to the aeration device (8), an electric valve (29) and a first manual valve (30) are arranged between the fan (26) and the membrane stack (16), a second manual valve (31) is arranged between the fan (26) and the aeration device (8), and the water production pump (25), the fan (26) and the electric valve (29) are all connected to an electric control system (23).
3. The vertical type anti-variability sewage treatment device according to claim 2, characterized in that: the water inlet pump (3) and the fan (26) are provided with frequency converters.
4. The vertical type anti-variability sewage treatment device according to claim 1, characterized in that: the bottom of the gas stripping return pipe (20) is a three-way port, and one open port is arranged above a mud bucket (27) of the sedimentation tank.
5. The vertical type anti-variability sewage treatment device according to claim 4, characterized in that: the lower end of the anoxic zone (21) is provided with an anoxic zone mud bucket (28), and the bottom of the anoxic zone mud bucket (28) is lower than the bottom of the sedimentation tank mud bucket (27) and is communicated with the anoxic zone (6).
6. The vertical type anti-variability sewage treatment device according to claim 1, characterized in that: the baffle (13) extends downwards to the aerobic zone (11) and inclines downwards to one side of the mud sliding zone (15).
7. The vertical type anti-variability sewage treatment device according to claim 1, characterized in that: the bottom of the sedimentation tank (17) is obliquely arranged and inclines downwards from the aerobic zone (11) to the anoxic zone (6).
8. A vertical type multiple-resistance sewage treatment process using the vertical type multiple-resistance sewage treatment device according to any one of claims 1 to 7, characterized in that: the method comprises the following steps:
1) the electric control system presets the corresponding relation between the water quantity of the water inlet pool and each operation process, presets the operation equipment and parameters corresponding to each operation process, and the corresponding relation between the water quantity of the water inlet pool and the operation process comprises the following steps:
a) when the water amount in the water inlet tank is less, the anoxic, aerobic and sedimentation treatment process is intermittently operated;
b) when the water amount in the water inlet tank is equal, operating anoxic, aerobic and sedimentation treatment processes;
c) when the water amount in the water inlet tank is large, operating anoxic, aerobic and MBR treatment processes;
d) when the water amount in the water inlet tank is excessive, a precipitation process is operated;
2) monitoring the water quantity of the water inlet tank, transmitting a water quantity signal to an electric control system, comparing the signal with preset data, and selecting a corresponding operation process to perform sewage treatment;
3) repeating step 2) or repeating steps 1) and 2).
9. The vertical type multiple-change resistant sewage treatment process according to claim 8, characterized in that:
when the process a) is operated, the fan is operated intermittently at low frequency, the water inlet pump is opened intermittently, the electric valve is closed, the water outlet pump is closed, and the water inlet pump is closed during the operation of the fan;
when the process b) is operated, the fan continuously operates at low frequency, the water inlet pump operates at low frequency, the electric valve is closed, the water outlet pump is closed, the fan and the water inlet pump operate in a linkage manner, the fan is opened, and the water inlet pump can operate;
when the process c) is operated, the water inlet pump intermittently operates according to the high, low and high frequency of the liquid level, the fan independently and continuously operates at high frequency, the electric valve is opened, the water outlet pump operates, and water is intermittently produced;
and (4) when the process d) is operated, the water inlet pump is opened at high frequency, and the fan, the electric valve and the water outlet pump are all closed.
10. The vertical type multiple-change resistant sewage treatment process according to claim 8, characterized in that: the control system has a delayed reaction mechanism for the received water inlet pool liquid level signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010413832.1A CN111573835A (en) | 2020-05-15 | 2020-05-15 | Vertical type anti-variability sewage treatment device and treatment process |
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| CN202010413832.1A CN111573835A (en) | 2020-05-15 | 2020-05-15 | Vertical type anti-variability sewage treatment device and treatment process |
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Cited By (1)
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| CN113045123A (en) * | 2021-03-19 | 2021-06-29 | 湖南三友环保科技有限公司 | Sewage treatment process based on seasonal fluctuation of sewage flow and water quality |
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Application publication date: 20200825 |