CN110745967A - Sewage treatment system and method capable of self-adapting to sewage inflow - Google Patents
Sewage treatment system and method capable of self-adapting to sewage inflow Download PDFInfo
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- CN110745967A CN110745967A CN201911257974.7A CN201911257974A CN110745967A CN 110745967 A CN110745967 A CN 110745967A CN 201911257974 A CN201911257974 A CN 201911257974A CN 110745967 A CN110745967 A CN 110745967A
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- 239000010865 sewage Substances 0.000 title claims abstract description 111
- 238000000034 method Methods 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 108
- 238000001514 detection method Methods 0.000 claims abstract description 79
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 54
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 54
- 239000001301 oxygen Substances 0.000 claims abstract description 54
- 238000007664 blowing Methods 0.000 claims abstract description 27
- 238000004891 communication Methods 0.000 claims abstract description 4
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 5
- 238000005273 aeration Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 description 11
- 230000003044 adaptive effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000004083 survival effect Effects 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241001148470 aerobic bacillus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001338 necrotic effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- 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
- C02F3/006—Regulation methods for biological treatment
-
- 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
- C02F2209/40—Liquid flow rate
Abstract
The invention discloses a sewage treatment system and a sewage treatment method capable of adapting to sewage inflow, wherein the sewage treatment system comprises a sewage adjusting tank, a sewage treatment tank, a water level detection module, a sewage lifting module, a water flow detection module, a statistical operation module, a dissolved oxygen detection module, a blowing module and other modules, wherein the statistical operation module is respectively in communication connection with the water flow detection module, the water level detection module, the dissolved oxygen detection module, the blowing module, the sewage lifting module and the other modules; the dissolved oxygen detection module is provided with a plurality of small detection modules and is positioned one meter below the water surface of the sewage treatment tank; and the water flow detection module is positioned in the middle of a pipeline between the sewage adjusting tank and the sewage treatment tank. The invention mainly makes the sewage treatment system intake water evenly, the blower blows air according to the need, makes the sewage dissolved oxygen in reasonable level.
Description
Technical Field
The invention relates to the field of water treatment, in particular to a sewage treatment system and a sewage treatment method capable of self-adapting to sewage inflow.
Background
In the current practice of sewage treatment engineering, the sewage quantity usually fluctuates greatly (more than the designed quantity) compared with the designed quantity, and the fluctuation of the water quantity causes uneven water inlet of a treatment tank, sometimes no water enters a biochemical tank for a long time, and sometimes the water quantity is too large. The uneven water inflow causes adverse effects on the survival of strains and subsequent processes, so that the quality of the effluent is unqualified, and the strains are necrotic. At present, the conventional coping method is to regulate the opening of a valve of a lifting module and set a return pipe of the lifting module to control the water inflow according to manual observation and measurement, the method needs to be frequently checked and adjusted manually, the time and the energy are consumed, and the adjustment accuracy and timeliness are difficult to guarantee. The blowing module usually adopts timing clearance operation, but not linked with the lifting water quantity, and the dissolved oxygen quantity is controlled inaccurately.
The invention content is as follows:
in view of the above-mentioned defects of the prior art, the present invention mainly provides a sewage treatment system and a sewage treatment method thereof, which are adaptive to sewage inflow, and achieve the functions of making the inflow flow into a sewage treatment tank uniformly and making the oxygen content reach the standard.
The technical scheme is that the sewage treatment system capable of self-adapting to the sewage inflow comprises a sewage adjusting tank, a sewage treatment tank, a water level detection module, a sewage lifting module, a water flow detection module, a statistical operation module, a dissolved oxygen detection module, an air blowing module and other modules, wherein the statistical operation module is respectively in communication connection with the water flow detection module, the water level detection module, the dissolved oxygen detection module, the air blowing module, the sewage lifting module and the other modules; the dissolved oxygen detection module is provided with a plurality of small detection modules; the water flow detection module is positioned in the middle of a pipeline between the sewage adjusting tank and the sewage treatment tank;
the dissolved oxygen detection module transmits the detected oxygen concentration signal to the statistical operation module; after the oxygen concentration signal is judged, analyzed and processed by the statistical operation module, if the oxygen concentration is lower than a set value, an electric signal is transmitted to the air blowing module; the blowing module works after receiving the electric signal to ensure that the dissolved oxygen meets the set value of the sewage treatment tank; the dissolved oxygen detection modules are uniformly distributed at a position one meter below the water surface of the sewage treatment tank; the blowing module comprises an aeration head, a blower and a blowing pipeline; and the outlet of the blast pipeline is positioned at the bottom of the sewage treatment tank.
In the prior art, as the amount of sewage entering the sewage treatment tank is unstable, the survival of strains and subsequent processes are adversely affected, and the water quality is unqualified. In addition, the water inflow needs to be controlled by manual observation and measurement, manual rechecking and adjustment are frequently required, time and energy are consumed, and the adjustment accuracy and timeliness are difficult to guarantee.
The invention discloses a sewage treatment system capable of adapting to sewage inflow, which comprises a water level detection module, a sewage lifting module, a water flow detection module, a statistical operation module, a dissolved oxygen detection module, a blast module and other modules, belongs to the prior art, and is characterized in that the dissolved oxygen detection module is provided with a plurality of small detection modules which are uniformly distributed at a position one meter below the water surface of a sewage treatment tank, and the positions and the number of the small detection modules are changed in the prior art, so that the measured oxygen concentration is more accurate. And only one water flow detection module is used, so that the problem of uneven water flow is solved, the cost is reduced, and the water flow detection module is universal. If two flow detection modules are used, it is more costly. If the flow detection module is not used, the liquid level of the regulating pool can be adjusted, but a complex program needs to be designed, the liquid level is not universal, and parameters are set according to the size of the regulating pool.
Further, the water flow detection module transmits the detected flow signal to the statistical operation module; the statistical operation module judges, analyzes and processes the flow signal, judges whether the flow reaches a set range, transmits a working electric signal to the sewage lifting module when the flow does not reach the set range, and does not transmit the working electric signal when the flow reaches the set range; the sewage lifting module is positioned in the sewage adjusting tank.
Further, the water level detection module is positioned in the sewage adjusting tank and transmits the detected water level signal to the statistical operation module; the statistical operation module judges and analyzes the water level signal and judges whether the water level signal is higher than a set water level value, if so, an electric signal is transmitted to the sewage lifting module to start, and otherwise, the sewage lifting module is stopped;
the invention only uses one water flow detection module, solves the problem of uneven water flow, reduces the cost and is more universal. If two flow detection modules are used, it is more costly. If the flow detection module is not used, the liquid level of the regulating pool can be adjusted, but a complex program needs to be designed, the liquid level is not universal, and parameters are set according to the size of the regulating pool.
Further, the other modules comprise a temperature detection module and an early warning module.
Furthermore, the statistical operation module is connected with a touch screen for setting parameters.
And other modules are added outside the statistical operation module, and the parameter setting amount on the touch screen is increased, so that the system functions can be diversified.
Further, the treatment method of the sewage treatment system capable of self-adapting to the sewage inflow comprises the following steps:
the method comprises the following steps: setting parameters including a water level detection time interval, a water level maximum value, a water flow detection time interval, a uniform water flow range, an oxygen concentration detection time interval and an oxygen concentration range;
step two: the water level detection module sends a water level signal detected in the sewage regulating tank to the statistical operation module at set time intervals, the statistical operation module analyzes and judges the water level signal and judges whether the water level signal is higher than the highest value of the set water level, if so, a working instruction is given to the sewage lifting module to start, and otherwise, the sewage lifting module is stopped;
step three: the water flow detection module transmits water flow signals detected in the pipeline to the statistical operation module at set time intervals, and the statistical operation module feeds back the water flow signals to the sewage lifting module to enable the sewage lifting module to work in a frequency conversion or clearance mode after analysis and judgment, so that the water flow is uniform;
step four: the dissolved oxygen detection module transmits an oxygen concentration signal detected in the sewage treatment tank to the statistical operation module at set time intervals, and the statistical operation module feeds back the oxygen concentration signal to the air blowing module to balance the oxygen concentration in the sewage treatment tank after analysis and judgment if the oxygen concentration is lower than a set value.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the invention realizes the functions of automatic operation, unattended operation, uniform water supply, air blast according to requirements and the like of the sewage treatment equipment;
2. only one flow detection module is used, the method is universal and low in cost;
3. any fluid treated by the biological bacteria principle can be applied to the system.
Description of the drawings:
the accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention.
FIG. 1 is a block diagram of the system architecture of the present invention.
FIG. 2 is a schematic view of a touch screen of the present invention.
The specific implementation mode is as follows:
in order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1
As shown in fig. 1, a sewage treatment system with adaptive sewage inflow comprises a sewage adjusting tank, a sewage treatment tank, a water level detection module, a sewage lifting module, a water flow detection module, a statistical operation module, a dissolved oxygen detection module, a blowing module and other modules; the statistical operation module is respectively in communication connection with the water flow detection module, the water level detection module, the dissolved oxygen detection module, the air blowing module, the sewage lifting module and other modules; the dissolved oxygen detection module is provided with a plurality of small detection modules and is positioned one meter below the water surface of the sewage treatment tank; the blowing module comprises an aeration head, a blower and a blowing pipeline; and the pipeline outlet of the air blowing module is positioned at the bottom of the sewage treatment tank.
When the regulating reservoir reaches a high liquid level, the air blowing module enters a clearance working state, and the machine is stopped at a low liquid level. And in the controlled period, the air blowing module is started when the dissolved oxygen value of the dissolved oxygen instrument is smaller than the minimum set value, the air blowing module is suspended when the dissolved oxygen value is higher than the maximum set value, and the air blowing module is started again after the dissolved oxygen value is reduced. The air blowing module with low liquid level for a certain time keeps the activity of the aerobic bacteria by micro-aeration.
In the embodiment, the lifting module enters a clearance working state when the regulating reservoir is at a high liquid level, and the low liquid level is stopped. The initial value of the water amount per hour is set with a modifiable upper limit flow, the statistical operation module automatically sets the water amount per hour once 24 hours after the lifting module is started for the first time, and then the statistical operation module sets the water amount per hour once per 24 hours. The operation module is started to automatically control the water amount per hour, a certain time interval is set to enable the operation module to detect the instantaneous flow of the primary flow module, the start-stop interval time of the lifting module is adjusted according to the flow deviation per hour of the comparison operation, and the flow per hour is enabled to be the same as the set flow, so that the sewage treatment system can automatically and uniformly feed water.
Example 2
Based on the embodiment 1, the water flow detection module is positioned in the middle of a pipeline between the sewage adjusting tank and the sewage treatment tank; the water level detection module and the sewage lifting module are positioned in the sewage adjusting tank.
In the embodiment, the lifting module enters a clearance working state when the regulating reservoir is at a high liquid level, and the low liquid level is stopped. The initial value of the water amount per hour is set with a modifiable upper limit flow, the statistical operation module automatically sets the water amount per hour once 24 hours after the lifting module is started for the first time, and then the statistical operation module sets the water amount per hour once per 24 hours. The operation module is started to automatically control the water amount per hour, a certain time interval is set to enable the operation module to detect the instantaneous flow of the primary flow module, the start-stop interval time of the lifting module is adjusted according to the flow deviation per hour of the comparison operation, and the flow per hour is enabled to be the same as the set flow, so that the sewage treatment system can automatically and uniformly feed water.
Example 3
Based on the embodiment 2, the statistical operation module is connected with other modules which are controlled by the operation module and linked with the water quantity according to actual requirements. The other modules comprise a temperature detection module and an early warning module. The statistical operation device is externally connected with a touch screen capable of setting parameters.
And other modules are added to the statistical operation module, so that the functions of the statistical operation module are more complete. The statistical operation device is externally connected with a touch screen capable of setting parameters, as shown in fig. 2, and the operation steps are as follows:
1. upper limit of water amount per hour: the water quantity is set as the designed water quantity in principle, and can be adjusted to be lower or higher according to the quality of raw water, the discharge standard, the water quantity and the local climate condition;
2. instantaneous flow detection interval time: the parameter influences the adjustment frequency of the lifting amount, the accuracy is high when the numerical value is small, but the service life of the electric appliance is shortened when the numerical value is too small, and the recommended time is not less than 10 minutes;
3. upper and lower dissolved oxygen values: setting according to the process requirement, pausing the high value air blowing module, and working the low value air blowing module;
4. daily run time: the value influences the adjustment amplitude of the system when the water quantity increases, if the water quantity increases more, the numerical value is smaller, and the suggested initial value is 23 hours;
5. other display parameters are used for observing and checking whether the system running condition is normal;
6. and the operation is started after the set point is determined.
Example 4
Based on the embodiment 3, in a working mode of the system, the water level detection module sends the water level signal detected in the sewage adjusting tank to the statistical operation module at regular intervals by setting parameters, and the statistical operation module analyzes and judges the water level signal and feeds the water level signal back to the sewage lifting module;
the water flow detection module transmits water flow signals detected in the pipeline to the statistical operation module at intervals, and the statistical operation module feeds back the water flow signals to the sewage lifting module after analysis and judgment so as to enable the sewage lifting module to work in a frequency conversion or clearance mode and enable the flow to be uniform;
the dissolved oxygen detection module transmits an oxygen concentration signal detected in the sewage treatment tank to the statistical operation module at intervals, and the statistical operation module feeds back the oxygen concentration signal to the blowing module after analysis and judgment so as to balance the oxygen concentration in the sewage treatment tank.
The detected signals are automatically sent to a statistical operation system through each detection module, and after the system analysis, judgment and processing, the instructions are issued again, so that the flow is uniform, the oxygen concentration in the sewage treatment tank reaches a set range, and the function of automatic operation control is achieved.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. A sewage treatment system capable of self-adapting to sewage inflow comprises a sewage adjusting tank, a sewage treatment tank, a water level detection module, a sewage lifting module, a water flow detection module, a statistical operation module, a dissolved oxygen detection module, an air blowing module and other modules, and is characterized in that the statistical operation module is respectively in communication connection with the water flow detection module, the water level detection module, the dissolved oxygen detection module, the air blowing module, the sewage lifting module and the other modules; the dissolved oxygen detection module is provided with a plurality of small detection modules; the water flow detection module is positioned in the middle of a pipeline between the sewage adjusting tank and the sewage treatment tank;
the dissolved oxygen detection module transmits the detected oxygen concentration signal to the statistical operation module; after the oxygen concentration signal is judged, analyzed and processed by the statistical operation module, if the oxygen concentration is lower than a set value, an electric signal is transmitted to the air blowing module; the blower module works after receiving the electric signal to enable the dissolved oxygen to meet the set value of the sewage treatment tank.
2. The sewage treatment system according to claim 1, wherein the dissolved oxygen detection modules are uniformly distributed at a position one meter below the water surface of the sewage treatment tank.
3. The sewage treatment system according to claim 1, wherein the blower module comprises an aeration head, a blower and a blower pipe; and the outlet of the blast pipeline is positioned at the bottom of the sewage treatment tank.
4. The sewage treatment system according to claim 1, wherein the water flow detection module transmits the detected flow signal to the statistical operation module; the statistical operation module judges, analyzes and processes the flow signal, judges whether the flow reaches a set range, transmits a working electric signal to the sewage lifting module when the flow does not reach the set range, and does not transmit the working electric signal when the flow reaches the set range; the sewage lifting module is positioned in the sewage adjusting tank.
5. The sewage treatment system according to claim 1, wherein the water level detection module is located in the sewage adjusting tank and transmits a detected water level signal to the statistical operation module; and the statistical operation module judges whether the water level signal is higher than a set water level value or not after judging and analyzing the water level signal, if so, a working electric signal is transmitted to the sewage lifting module, and otherwise, the working electric signal is not transmitted.
6. The sewage treatment system according to claim 1, wherein the other modules comprise a temperature detection module and an early warning module.
7. The sewage treatment system of claim 1, wherein the statistical operation module is connected to a touch screen for setting parameters.
8. The method for treating the sewage treatment system based on the self-adaptive sewage inflow of the claim 1 is characterized by comprising the following steps:
the method comprises the following steps: setting parameters including a water level detection time interval, a water level maximum value, a water flow detection time interval, a uniform water flow range, an oxygen concentration detection time interval and an oxygen concentration range;
step two: the water level detection module sends a water level signal detected in the sewage regulating tank to the statistical operation module at set time intervals, the statistical operation module analyzes and judges the water level signal and judges whether the water level signal is higher than the highest value of the set water level, if so, a working electric signal is started for the sewage lifting module, otherwise, the sewage lifting module is stopped;
step three: the water flow detection module transmits water flow signals detected in the pipeline to the statistical operation module at set time intervals, and the statistical operation module feeds back the water flow signals to the sewage lifting module to enable the sewage lifting module to work in a frequency conversion or clearance mode after analysis and judgment, so that the water flow is uniform;
step four: the dissolved oxygen detection module transmits an oxygen concentration signal detected in the sewage treatment tank to the statistical operation module at set time intervals, and the statistical operation module feeds back the oxygen concentration signal to the air blowing module to balance the oxygen concentration in the sewage treatment tank after analysis and judgment if the oxygen concentration is lower than a set value.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911257974.7A CN110745967A (en) | 2019-12-10 | 2019-12-10 | Sewage treatment system and method capable of self-adapting to sewage inflow |
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| CN201911257974.7A CN110745967A (en) | 2019-12-10 | 2019-12-10 | Sewage treatment system and method capable of self-adapting to sewage inflow |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111995077A (en) * | 2020-08-03 | 2020-11-27 | 优德太湖水务（苏州）有限公司 | Distributed sewage treatment automatic control device and method |
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2019
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