CN110498502A - A kind of segmented aerobic tank automatic control intermittent aerating device - Google Patents
A kind of segmented aerobic tank automatic control intermittent aerating device Download PDFInfo
- Publication number
- CN110498502A CN110498502A CN201910772523.0A CN201910772523A CN110498502A CN 110498502 A CN110498502 A CN 110498502A CN 201910772523 A CN201910772523 A CN 201910772523A CN 110498502 A CN110498502 A CN 110498502A
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- Prior art keywords
- aerobic tank
- segment
- oxidation
- dissolved oxygen
- reduction potential
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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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1278—Provisions for mixing or aeration of the mixed liquor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention discloses a kind of segmented aerobic tanks to automatically control intermittent aerating device, belongs to technical field of sewage.It includes aerobic tank, partition, the first aerator, the first dissolved oxygen and oxidation-reduction potential detector, the first air blower, the second aerator, the second dissolved oxygen and oxidation-reduction potential detector, the second air blower, circuit controller；Partition is set in the middle part of the aerobic tank, and aerobic tank is divided into first segment aerobic tank, second segment aerobic tank by partition, and heterotroph is used in first segment aerobic tank, uses nitrifier in second segment aerobic tank.One aerobic tank is divided into two sections, first segment aerobic tank uses various heterotrophs, Organic substance in water oxygenolysis, to remove COD, is placed in front；Ammonia nitrogen in sewage is converted into nitrate nitrogen using various nitrifiers by second segment aerobic tank, is placed in below, the COD concentration in water removal is first largely gone in first segment aerobic tank, then nitrified, is conducive to improve effluent characteristics.
Description
Technical field
The present invention relates to a kind of segmented aerobic tanks to automatically control intermittent aerating device, belongs to technical field of sewage.
Background technique
Existing technique or device about aerobic tank Air Exposure is usually integrated, passes through artificial or long-range prison
Control unilaterally increases or reduces the amount being aerated in aerobic tank, to maintain the demand of dissolved oxygen in aerobic tank.There are many techniques
Device joined various detectors in aerobic tank, monitors such as dissolved oxygen DO, oxidation-reduction potential ORP, pH value PH, passes through
Sensor is transported to monitoring room and handles analysis through related software to select that aeration quantity in aerobic tank is adjusted.But in aerobic section
The nitrification of ammonia nitrogen in the removal and water of COD COD actually occurs, dissolved oxygen required for both are reacted is dense
Degree and specific oxidation-reduction potential are all different, react required various heterotrophs and nitrifier is also at the feelings of competition
Condition relies solely on and increases or reduces the concentration of dissolved oxygen and not can be further improved the quality of water outlet, the adjusting to dissolved oxygen
The phenomenon that in the presence of delay, the variation of dissolved oxygen is also required to the time, and the condition constantly fluctuated between this can also cause various strains
Corresponding to influence, often lasting aeration can also have very big demand to the energy.
Summary of the invention
Technical problem to be solved by the present invention lies in: a kind of segmented aerobic tank automatic control intermittent aerating dress is provided
It sets, it solves aerobic tank and uses integral structure at present, and the heterotroph and nitrifier coexistence in aerobic tank have the case where competition,
It relies solely on and increases or reduces the problem of concentration of dissolved oxygen not can be further improved effluent characteristics.
The technical problems to be solved by the invention take following technical scheme to realize:
A kind of segmented aerobic tank automatically controls intermittent aerating device, it includes aerobic tank, partition, the first aerator, the
One dissolved oxygen and oxidation-reduction potential detector, the first air blower, the second aerator, the second dissolved oxygen and oxidation-reduction potential inspection
Survey instrument, the second air blower, circuit controller；
Partition is set in the middle part of the aerobic tank, and aerobic tank is divided into first segment aerobic tank, second segment aerobic tank by partition, dirty
For aqueous process streams to being to use heterotroph in first segment aerobic tank from first segment aerobic tank to second segment aerobic tank, second segment is aerobic
Nitrifier is used in pond；
The first aerator and the first dissolved oxygen and oxidation-reduction potential detector are equipped with inside the first segment aerobic tank, the
The sealing of one aerator air intake is stretched out first segment aerobic tank and is connect with the first external air blower outlet air end, the first dissolved oxygen and oxygen
Change reduction potential detector, the first air blower and circuit controller to be electrically connected；
The second aerator and the second dissolved oxygen and oxidation-reduction potential detector are equipped with inside the second segment aerobic tank, the
The sealing of two aerator air intakes is stretched out second segment aerobic tank and is connect with the second external air blower outlet air end, the second dissolved oxygen and oxygen
Change reduction potential detector, the second air blower and circuit controller to be electrically connected.
As preferred embodiment, the circuit controller uses PLC controller.
As preferred embodiment, first aerator is located at the aerobic bottom of pond portion of first segment.
As preferred embodiment, first dissolved oxygen and oxidation-reduction potential detector are located in first segment aerobic tank
Portion.
As preferred embodiment, second aerator is located at the aerobic bottom of pond portion of second segment；
As preferred embodiment, second dissolved oxygen and oxidation-reduction potential detector are located in second segment aerobic tank
Portion.
The beneficial effects of the present invention are: an aerobic tank is divided into two sections, first segment aerobic tank uses various heterotrophs,
Organic substance in water oxygenolysis is placed in front to remove COD；Second segment aerobic tank is come using various nitrifiers ammonia in sewage
Nitrogen is converted into nitrate nitrogen, prepares for denitrification, is placed in below, since the COD of high concentration can to rely on organic growth
Heterotroph mass propagation, as dominant bacteria, to inhibit the growth of Autotrophic nitrification bacterium, therefore, in first segment aerobic tank
The COD concentration in water removal is first largely gone, then is nitrified, is conducive to improve effluent characteristics；Also by the first dissolved oxygen and oxidation
Former current potential detector, the first air blower, the second dissolved oxygen and oxidation-reduction potential detector, the second air blower, circuit controller,
According to demand in aerobic tank, automatic spacing aeration in the case where guaranteeing clean-up effect, saves the energy.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
In figure: aerobic tank 1, first segment aerobic tank 11, second segment aerobic tank 12, partition 2, the first aerator 3, the first dissolution
Oxygen and oxidation-reduction potential detector 4, the first air blower 5, the second aerator 6, the second dissolved oxygen and oxidation-reduction potential detection
Instrument 7, the second air blower 8, circuit controller 9.
Specific embodiment
In order to be easy to understand to technical means, creative features, achievable purpose and effectiveness of the invention, below with reference to tool
Body diagram, the present invention is further explained.
As shown in Figure 1, a kind of segmented aerobic tank automatically controls intermittent aerating device, it includes aerobic tank 1, partition 2, the
One aerator 3, the first dissolved oxygen and oxidation-reduction potential detector 4, the first air blower 5, the second aerator 6, the second dissolved oxygen
And oxidation-reduction potential detector 7, the second air blower 8, circuit controller 9；
Partition 2 is set in the middle part of aerobic tank 1, and aerobic tank 1 is divided into first segment aerobic tank 11, second segment aerobic tank by partition 2
12, sewage treatment flow direction is that heterotroph is used in first segment aerobic tank 11 from first segment aerobic tank 11 to second segment aerobic tank 12,
Nitrifier is used in second segment aerobic tank 12；
The first aerator 3 and the first dissolved oxygen and oxidation-reduction potential detector 4 are equipped with inside first segment aerobic tank 11, the
The sealing of one aerator, 3 air intake is stretched out first segment aerobic tank 11 and is connect with external 5 outlet air end of the first air blower, the first dissolved oxygen
And oxidation-reduction potential detector 4, the first air blower 5 are electrically connected with circuit controller 9；
The second aerator 6 and the second dissolved oxygen and oxidation-reduction potential detector 7 are equipped with inside second segment aerobic tank 12, the
The sealing of two aerators, 6 air intake is stretched out second segment aerobic tank 12 and is connect with external 8 outlet air end of the second air blower, the second dissolved oxygen
And oxidation-reduction potential detector 7, the second air blower 8 are electrically connected with circuit controller 9.
Circuit controller 9 uses PLC controller.PLC controller is according to following working principle control room every aeration process.
First aerator 3 is located at 11 bottom of first segment aerobic tank.
First dissolved oxygen and oxidation-reduction potential detector 4 are located at 11 middle and upper part of first segment aerobic tank.
Second aerator 6 is located at the aerobic bottom of pond portion of second segment；
Second dissolved oxygen and oxidation-reduction potential detector 7 are located at 12 middle and upper part of second segment aerobic tank.
First dissolved oxygen and oxidation-reduction potential detector 4, the second dissolved oxygen and oxidation-reduction potential detector 7 use city
That sells is able to detect the instrument of dissolved oxygen DO and oxidation-reduction potential ORP value；First aerator 3, the second aerator 6 are using commercially available
Micro-hole aerator.
Working principle:
(1) it when sewage enters first segment aerobic tank 11 from 1 front end of aerobic tank, is constantly exposed by the first air blower 5, first
Gas device 3 provide aeration, at this time by heterotrophs various in sludge to dirty Organic substance in water carry out metabolism, at this time dissolved oxygen DO and
Oxidation-reduction potential ORP will slowly reduce, it is even constant to increase, when the first dissolved oxygen and oxidation-reduction potential detector 4 are examined
It measures when DO and ORP starts to be substantially increased (more than the upper limit value of setting), this indicates that most COD has been removed in sewage, is led to
Oversampling circuit controller 9 controls the first air blower 5 pause aeration, when the first dissolved oxygen and oxidation-reduction potential detector 4 detect
(lower than the lower limit value of setting) when DO and ORP start to decline to a great extent, the first air blower 5 is controlled by circuit controller 9 and starts to expose
Gas.
(2) sewage after eliminating a large amount of COD enters second segment aerobic tank 12, at this time by nitrification autotrophic bacterium (i.e. nitrifier)
To carry out the ammonia nitrogen and cultured water that nitration reaction is gone in water removal, the at this time competition without heterotroph to nitrifier, nitrifier
Energy rapid multiplying growth, preferably to remove ammonia nitrogen.
It is identical as the interval aeration principle of first segment aerobic tank 11, such as: one embodiment according to actual needs, when second
After the dissolved oxygen concentration DO of section aerobic tank 12 is greater than 5mg/l, and oxidation-reduction potential continues 10min greater than 50mv, circuit control
Device 9 will turn off the second aerator 6 of second segment aerobic tank 12, the second air blower 8, stop aeration；When second segment aerobic tank
12 dissolved oxygen concentration DO is less than 4mg/l or oxidation-reduction potential less than after 40mv, and system would automatically turn on second segment aerobic tank
12 the second air blower 8, starts to be aerated.
First segment aerobic tank 11, second segment aerobic tank 12 are respectively provided with the first dissolved oxygen and oxidation-reduction potential detector
4, the second dissolved oxygen and oxidation-reduction potential detector 7, and corresponding switch is devised at circuit controller 9, it can be according to reality
Border situation designs specific threshold value, increases or reduces aeration according to specific requirements, saves the energy.
One aerobic tank 1 is divided into two sections, first segment aerobic tank 11 uses various heterotrophs, Organic substance in water oxidation point
Solution is placed in front to remove COD；Ammonia nitrogen in sewage is converted into nitre state using various nitrifiers by second segment aerobic tank 12
Nitrogen is prepared for denitrification, is placed in below, since the COD of high concentration can make the heterotroph for relying on organic growth largely numerous
It grows, as dominant bacteria, thus inhibit the growth of Autotrophic nitrification bacterium, and therefore, first a large amount of removals in first segment aerobic tank 11
COD concentration in water, then nitrified, be conducive to improve effluent characteristics；It is detected by the first dissolved oxygen and oxidation-reduction potential
Instrument 4, the first air blower 5, the second dissolved oxygen and oxidation-reduction potential detector 7, the second air blower 8, circuit controller 9, according to
Demand in aerobic tank 1, automatic spacing aeration in the case where guaranteeing clean-up effect, save the energy.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, without departing from the spirit and scope of the present invention, this hair
Bright to will also have various changes and improvements, these changes and improvements are both fallen in the scope of protection of present invention.The present invention claims
Protection scope is defined by the appending claims and its equivalent thereof.
Claims (6)
1. a kind of segmented aerobic tank automatically controls intermittent aerating device, which is characterized in that it includes aerobic tank, partition, first
Aerator, the first dissolved oxygen and oxidation-reduction potential detector, the first air blower, the second aerator, the second dissolved oxygen and oxidation
Reduction potential detector, the second air blower, circuit controller；
Partition is set in the middle part of the aerobic tank, and aerobic tank is divided into first segment aerobic tank, second segment aerobic tank by partition, at sewage
Reason flow direction is to use heterotroph in first segment aerobic tank from first segment aerobic tank to second segment aerobic tank, in second segment aerobic tank
Use nitrifier；
The first aerator and the first dissolved oxygen and oxidation-reduction potential detector are equipped with inside the first segment aerobic tank, first exposes
The sealing of gas device air intake is stretched out first segment aerobic tank and is connect with the first external air blower outlet air end, and the first dissolved oxygen and oxidation are also
Former current potential detector, the first air blower and circuit controller are electrically connected；
The second aerator and the second dissolved oxygen and oxidation-reduction potential detector are equipped with inside the second segment aerobic tank, second exposes
The sealing of gas device air intake is stretched out second segment aerobic tank and is connect with the second external air blower outlet air end, and the second dissolved oxygen and oxidation are also
Former current potential detector, the second air blower and circuit controller are electrically connected.
2. a kind of segmented aerobic tank automatically controls intermittent aerating device according to claim 1, which is characterized in that the electricity
Road controller uses PLC controller.
3. a kind of segmented aerobic tank automatically controls intermittent aerating device according to claim 1, which is characterized in that described the
One aerator is located at the aerobic bottom of pond portion of first segment.
4. a kind of segmented aerobic tank automatically controls intermittent aerating device according to claim 1, which is characterized in that described the
One dissolved oxygen and oxidation-reduction potential detector are located at first segment aerobic tank middle and upper part.
5. a kind of segmented aerobic tank automatically controls intermittent aerating device according to claim 1, which is characterized in that described the
Two aerators are located at the aerobic bottom of pond portion of second segment.
6. a kind of segmented aerobic tank automatically controls intermittent aerating device according to claim 1, which is characterized in that described the
Two dissolved oxygens and oxidation-reduction potential detector are located at second segment aerobic tank middle and upper part.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910772523.0A CN110498502A (en) | 2019-08-21 | 2019-08-21 | A kind of segmented aerobic tank automatic control intermittent aerating device |
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| CN201910772523.0A CN110498502A (en) | 2019-08-21 | 2019-08-21 | A kind of segmented aerobic tank automatic control intermittent aerating device |
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| CN110498502A true CN110498502A (en) | 2019-11-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114455708A (en) * | 2022-04-08 | 2022-05-10 | 湖南惟创环境科技有限公司 | Integrated sewage treatment equipment and sewage treatment method |
| CN115557590A (en) * | 2022-09-05 | 2023-01-03 | 山东远图环境技术股份有限公司 | Measurement and control device for safe feeding of oxidant in aquaculture water |
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| EP3336065A1 (en) * | 2016-12-16 | 2018-06-20 | SUEZ Groupe | A process and a system for automatically controlling a nitrification-denitrification process using the redox potential |
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| EP3336065A1 (en) * | 2016-12-16 | 2018-06-20 | SUEZ Groupe | A process and a system for automatically controlling a nitrification-denitrification process using the redox potential |
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| CN114455708A (en) * | 2022-04-08 | 2022-05-10 | 湖南惟创环境科技有限公司 | Integrated sewage treatment equipment and sewage treatment method |
| CN115557590A (en) * | 2022-09-05 | 2023-01-03 | 山东远图环境技术股份有限公司 | Measurement and control device for safe feeding of oxidant in aquaculture water |
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Application publication date: 20191126 |