CN104925936B - A kind of method of Automated condtrol biological treatment of waste water system oxyty - Google Patents
A kind of method of Automated condtrol biological treatment of waste water system oxyty Download PDFInfo
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- 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
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- 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
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Abstract
A kind of method that the invention discloses Automated condtrol biological treatment of waste water system oxyty, based on during Artificial Control dissolved oxygen, dissolved oxygen controls the data that equipment runs, use mathematical statistics and the ultimate principle of theory of probability, if the control mode of biosystem dissolved oxygen is divided into Ganlei with stepped-style screening conclusion, the most corresponding different dissolved oxygen controls equipment combination, its corresponding relation is inputted central control system, enable central control system to automatically control corresponding dissolved oxygen according to the oxyty detected and control the opening and closing of equipment combination, oxyty is regulated in the range of bound.
Description
Technical field
The invention belongs to technical field of sewage, relate to a kind of Automated condtrol biological treatment of waste water system
The method of oxyty.
Background technology
Most domestic sewage treatment plant main body uses biological treatment system, and biological treatment system generally relates to
And multinomial operational factor, including sludge concentration (MLSS), oxyty (DO), return sludge ratio,
Hydraulic detention time (HRT) and sludge age (SRT), wherein, all controls related in biosystem
In parameter, DO is of paramount importance control parameter, is also operational factor the most rambunctious.
In biological treatment system, in addition to simple system for anaerobic treatment, it is generally divided into anaerobism, anoxia, good
Oxygen part, anaerobism and anoxia, partially due to be not provided with or arrange limited aeration, are easier to meet, do not relate to
And the control problem of DO；And aerobic part, as the core of organic matter removal, mainly pass through
Oxidation operation in waste water is inorganic matter by the metabolic activity making good use of oxygen animalcule under aerobic conditions
Method, the level of DO directly affects the activity of aerobic microbiological, thus affects the efficiency of Aerobic biological process.
Meanwhile, a typical sewage treatment plant, the energy consumption of surface aeration equipment accounts for always running
The 60%-80% of expense, the reasonably stability therefore realizing DO controls, and not only contributes to improve biosystem
Treatment effeciency, and operating cost can be saved.
The most conventional method used controls DO for artificial monitoring in real time, is difficulty with the most steady of DO
Fixed control, reason mainly have following some: (1) influent quality, the water yield change can be directly to biological tank
The content of middle DO produces impact, and often affects more rapid, particularly with the water yield 100,000 tons/
Below it, to process sewage treatment plant or the treating stations of trade effluent, the water water yield and water quality feelings
Condition, often had in one day and repeatedly floats, and this change resulting in DO is the most unstable, and fluctuation phase
To frequently, control more difficulty.(2), in Sewage Plant running, special messenger is had to monitor DO in real time the most day by day
Situation of change, and according to the floating of DO, adjust corresponding surface aeration equipment, but manual monitoring
Inevitably there is certain hysteresis quality, the especially effect of manual monitoring DO at night the most undesirable.(3)
Conventional DO automatic control method generally uses DO single-point to control, and surface aeration can be occurred to set during control
Standby frequent start-stop, it is impossible to meet the actual motion of Sewage Plant.
Summary of the invention
It is an object of the invention to provide the side of a kind of Automated condtrol biological treatment of waste water system oxyty
Method, solves existing DO control system and is Artificial Control, and the technology controlling effect relatively poor is asked
Topic, improves effluent quality, reduces energy consumption and human cost, has saved labour force.
The technical solution used in the present invention is, a kind of Automated condtrol biological treatment of waste water system oxyty
Method, comprise the following steps:
Step 1, the compound mode that different dissolved oxygens are controlled equipment is classified
First, set the upper and lower bound of oxyty, open dissolved oxygen control equipment and carry out at wastewater biological
Reason, adjusts different dissolved oxygen by manually operated method and controls the combination of equipment, oxyty regulation existed
In the range of upper and lower bound.After processing at least 90 days, terminate Artificial Control.
Then, the different dissolved oxygen of statistics controls the operation time of equipment combination, and carries out by long operational time is short
Sequence, operation time the longest dissolved oxygen controls equipment combination and is defined as " conventional ", molten with time " conventional "
Oxygen concentration is reference, under identical condition of water quality, makes oxyty control toward the dissolved oxygen reducing trend development
Equipment combination is defined as " reduction ", and it is fixed that the dissolved oxygen making oxyty ramp up trend development controls equipment combination
Justice is " strengthening ".
Step 2, adjusts central control system control mode
First, when oxyty is between upper and lower bound, it is stipulated that the dissolved oxygen control of its corresponding " conventional "
Control equipment combines；When oxyty is higher than the upper limit, it is stipulated that the dissolved oxygen of its corresponding " reduction " controls equipment
Combination；When oxyty is less than lower limit, it is stipulated that the dissolved oxygen of its corresponding " strengthening " controls equipment combination.
Then, control to set by the upper limit of the oxyty of setting, lower limit and different oxyty and dissolved oxygen
In the central processing unit of the corresponding relation input central control system of standby combination, and make middle control system by software programming
System has following functions: when oxyty is between upper and lower bound, opens " conventional " dissolved oxygen and controls
Equipment combines；When oxyty is higher than the upper limit, opens " reduction " dissolved oxygen and control equipment combination, when molten
When oxygen concentration is less than lower limit, the dissolved oxygen opening " strengthening " controls equipment combination.
Step 3, uses the method automatically controlled to control the oxyty of biological treatment of waste water system
Open central control system, use oxyty on-line computing model to detect the oxyty in current reaction tank,
And oxyty data are reached central control system, central control system judges the relation of oxyty and bound,
The dissolved oxygen automatically controlling correspondence controls the opening and closing of equipment combination, by oxyty regulation to the upper limit and
In lower range.
The present invention also has the following characteristics that
Step 1 " weakens " and several stages can be divided into according to the strength of adjustment of dissolved oxygen control equipment combination,
I.e. " reduction 1 ", " weakening 2 ", " weakening 3 " ..., the most corresponding different dissolved oxygen control equipment combination,
Oxyty is carried out the regulation of different dynamics.Generally definition, " weakening 1 ", " weakening 2 ", " weakening 3 " ...
Be gradually increased the strength of adjustment of oxyty, i.e. the latter can make higher oxyty drop to than the former
Within line.
In like manner, " strengthening " can be divided into several stages, i.e. according to the strength of adjustment of dissolved oxygen control equipment combination
" strengthening 1 ", " strengthening 2 ", " strengthening 3 " ..., the most corresponding different dissolved oxygen controls equipment combination, right
Oxyty carries out the regulation of different dynamics.Generally definition, " strengthening 1 ", " strengthening 2 ", " strengthening 3 " ...
Be gradually increased the strength of adjustment of oxyty, i.e. the latter can make lower oxyty be raised to down than the former
Within line.
Certainly, " weaken " and " strengthening " can be divided into the equal number of stage, it is also possible to different numbers,
Judge to need to be divided into several stage with specific reference to practical situation.
The most in step 2, when " reduction " is divided into some stages, if oxyty is higher than upper
Limit, it is stipulated that the dissolved oxygen of its corresponding " weakening 1 " controls equipment combination, if often running described dissolved oxygen after 1h
Concentration is not also reduced in the described upper limit, lower range, then specify that its corresponding later " weakens " stage
Dissolved oxygen control equipment combination.I.e. " weaken 1 " if oxyty is not also reduced to the upper limit after running 1h
Within, then specify its corresponding " weakening 2 ", if after the 1h that reruns oxyty be not also reduced to the upper limit with
In, then specify its corresponding " weakening 3 ", by that analogy.
In like manner, when " strengthening " is divided into some stages, if oxyty is less than lower limit, it is stipulated that it is right
The dissolved oxygen that " should strengthen 1 " controls equipment combination, if described oxyty does not also raise after often running 1h
In the described upper limit, lower range, then specify that the dissolved oxygen that its corresponding later " strengthens " stage controls to set
Standby combination.I.e. " strengthening 1 " is if within after running 1h, oxyty is also not raised to lower limit, then specified
Its corresponding " strengthening 2 ", if within oxyty is also not raised to lower limit after the 1h that reruns, then specifies it
Corresponding " strengthening 3 ", by that analogy.
Accordingly, in step 3, central control system can be according to oxyty and the relation of bound and molten
Oxygen controls the time of equipment combined running, controls corresponding dissolved oxygen and controls the unlatching of equipment combination.
The dissolved oxygen of the present invention controls equipment and comprises various surface aeration equipment, such as rotary disk aerator, turns brush exposure
Mechanism of qi etc..
The invention has the beneficial effects as follows:
(1) automation control method of the present invention is with dissolved oxygen during sewage treatment plant's Artificial Control dissolved oxygen
Based on the data that control equipment runs, use mathematical statistics and the ultimate principle of theory of probability, by biology department
If the control mode of system dissolved oxygen is divided into Ganlei with stepped-style screening conclusion, search out sewage treatment plant surface
The multiple main body method of operation of aerator, the control for oxyty provides operation foundation.
(2) automation control method of the present invention is applied in biological tank central control system, can be unmanned
In the case of monitoring, it is achieved the full-automatic of biological tank oxyty accurately controls, it is ensured that the change of oxyty
Change scope meets setting value, not only avoid manual monitoring operation, especially night time operation brought stagnant
Rear property, saves labour force, and improves the efficiency that oxyty controls, improve the effect of biological treatment
Energy.
(3) automation control method of the present invention is in terms of running control logic, will control the time and ginseng
Numerical control system combines, and uses Multistage Control, can be prevented effectively from the dissolved oxygen control that conventional autocontrol mode is brought
The drawback of equipment frequent start-stop, has ensured that dissolved oxygen controls the stable operation of equipment to a great extent.
(4) automation control method of the present invention can apply to it as a kind of autocontrol operation pattern
His parameter automatically control aspect, there is significant social benefit, environmental benefit and economic benefit.
Accompanying drawing explanation
Fig. 1 is the flow chart of the method for the Automated condtrol biological treatment of waste water system oxyty of the present invention；
Fig. 2 is the design sketch of the method for the Automated condtrol biological treatment of waste water system oxyty of the present invention.
Detailed description of the invention
The present invention is described in detail with detailed description of the invention below in conjunction with the accompanying drawings.
A kind of method that the invention provides Automated condtrol biological treatment of waste water system oxyty, including
Following steps:
Step 1, the compound mode that different dissolved oxygens are controlled equipment is classified
First, set the upper and lower bound of oxyty, open dissolved oxygen control equipment and carry out at wastewater biological
Reason, adjusts different dissolved oxygen by manually operated method and controls the combination of equipment, oxyty regulation existed
In the range of upper and lower bound.After processing at least 90 days, terminate Artificial Control.
Then, the different dissolved oxygen of statistics controls the operation time of equipment combination, and carries out by long operational time is short
Sequence, operation time the longest dissolved oxygen controls equipment combination and is defined as " conventional ", molten with time " conventional "
Oxygen concentration is reference, under identical condition of water quality, makes oxyty control toward the dissolved oxygen reducing trend development
Equipment combination is defined as " reduction ", and it is fixed that the dissolved oxygen making oxyty ramp up trend development controls equipment combination
Justice is " strengthening ".
Step 2, adjusts central control system control mode
First, when oxyty is between upper and lower bound, it is stipulated that the dissolved oxygen control of its corresponding " conventional "
Control equipment combines；When oxyty is higher than the upper limit, it is stipulated that the dissolved oxygen of its corresponding " reduction " controls equipment
Combination；When oxyty is less than lower limit, it is stipulated that the dissolved oxygen of its corresponding " strengthening " controls equipment combination.
Then, control to set by the upper limit of the oxyty of setting, lower limit and different oxyty and dissolved oxygen
In the central processing unit of the corresponding relation input central control system of standby combination, and make middle control system by software programming
The control module of system can control different dissolved oxygens according to oxyty and control the unlatching of equipment combination.
Step 3, uses the method automatically controlled to control the oxyty of biological treatment of waste water system
Open central control system, use oxyty on-line computing model to detect the oxyty in current reaction tank,
And oxyty data are reached central control system, central control system judges the relation of oxyty and bound,
When oxyty is between upper and lower bound, opens " conventional " dissolved oxygen and control equipment combination；Work as dissolved oxygen
When concentration is higher than the upper limit, opens " reduction " dissolved oxygen and control equipment combination, when oxyty is less than lower limit,
The dissolved oxygen opening " strengthening " controls equipment combination, carries out Automated condtrol with this, oxyty is regulated
To the upper limit and lower range.
The present invention also has the following characteristics that
Step 1 " weakens " and several stages can be divided into according to the strength of adjustment of dissolved oxygen control equipment combination,
I.e. " reduction 1 ", " weakening 2 ", " weakening 3 " ..., the most corresponding different dissolved oxygen control equipment combination,
Oxyty is carried out the regulation of different dynamics.Generally definition, " weakening 1 ", " weakening 2 ", " weakening 3 " ...
Be gradually increased the strength of adjustment of oxyty, i.e. the latter can make higher oxyty drop to than the former
Within line.
In like manner, " strengthening " can be divided into several stages, i.e. according to the strength of adjustment of dissolved oxygen control equipment combination
" strengthening 1 ", " strengthening 2 ", " strengthening 3 " ..., the most corresponding different dissolved oxygen controls equipment combination, right
Oxyty carries out the regulation of different dynamics.Generally definition, " strengthening 1 ", " strengthening 2 ", " strengthening 3 " ...
Be gradually increased the strength of adjustment of oxyty, i.e. the latter can make lower oxyty be raised to down than the former
Within line.
Certainly, " weaken " and " strengthening " can be divided into the equal number of stage, it is also possible to different numbers,
Judge to need to be divided into several stage with specific reference to practical situation.
The most in step 2, when " reduction " is divided into some stages, if oxyty is higher than upper
Limit, it is stipulated that the dissolved oxygen of its corresponding " weakening 1 " controls equipment combination, if oxyty is also after running 1h
Within not being reduced to the upper limit, then specify its corresponding " weakening 2 ", if oxyty is the most not after the 1h that reruns
Within being reduced to the upper limit, then specify its corresponding " weakening 3 ", by that analogy.
In like manner, when " strengthening " is divided into some stages, if oxyty is less than lower limit, it is stipulated that it is right
The dissolved oxygen that " should strengthen 1 " controls equipment combination, if oxyty is also not raised to lower limit after running 1h
Within, then specify its corresponding " strengthening 2 ", if after the 1h that reruns oxyty be not also reduced to the upper limit with
In, then specify its corresponding " strengthening 3 ", by that analogy.
Accordingly, in step 3, central control system can be according to oxyty and the relation of bound and molten
Oxygen controls the time of equipment combined running, controls corresponding dissolved oxygen and controls the unlatching of equipment combination.Method stream
Journey is as shown in Figure 1.
The dissolved oxygen of the present invention controls equipment and comprises various surface aeration equipment, such as rotary disk aerator, turns brush exposure
Mechanism of qi etc..
Embodiment 1
Utilize the method for Automated condtrol biological treatment of waste water system oxyty of the present invention to Tianjin
Sewage treatment plant carries out oxyty control.
Tianjin Sewage Plant uses Orbal oxidation ditch process to be that biosystem main body processes technique, is divided into
Outward, in, interior three ditches, surface aeration equipment is 4 groups of 8 rotary disk aerators, often ditch and septal fossula in group
Plate-spinning is controlled by 1 plate-spinning motor, starts the most simultaneously and stops simultaneously, and often group outer fissure plate-spinning is individually by 1
Plate-spinning motor controls.Oxidation ditch septal fossula arranges dissolved oxygen instrument.These factory rules and regulations determine the oxyty in reaction tank to be needed
Control between 2-4mg/L, i.e. the upper limit is 4mg/L, and lower limit is 2mg/L.
Step is as follows:
Step 1, the compound mode that different dissolved oxygens are controlled equipment is classified
First in the 1st year, carry out equipment operation by manually operated mode and dissolved oxygen regulates, add up 1
In year, different dissolved oxygens control the operation time of equipment combination, find to open 4 rotary disk aerators in 2 groups of diagonal angle
Time the longest, account for the 45% of total run time, it is right that the opening ways of other main plate-spinnings is respectively as follows:
4+the septal fossula in 2 groups of angle 1, the 4-septal fossula in 2 groups of diagonal angle 1, whole 4 groups 8, they are the most about
Accounting for the 32% of total run time, 17%, 6%, remaining plate-spinning opening ways proportion is the most relatively low,
Run owing to unlatching outer fissure diagonal angle 1 rotary disk aerator of 2+septal fossula has reached to meet oxidation ditch again
Low requirement, and the opening ways of 4 groups of 8 plate-spinnings has reached oxidation ditch surface aeration equipment and can meet
The upper limit, therefore the screening conclusion of protoplast's work open mode is divided into 4 classifications, " weaken 1 ", " conventional ",
" strengthening 1 ", " strengthening 2 ", corresponding plate-spinning opening ways is " the 4-septal fossula in 2 groups of diagonal angle 1 ", " right
2 groups 4, angle ", " the 4+septal fossula in 2 groups of diagonal angle 1 ", " whole 4 groups 8 ".
Step 2, arranges the classification that under different oxyty, equipment combination is corresponding
First, setting DO span of control is at 2-4mg/L, when DO concentration is between 2-4mg/L, and rule
The equipment of its correspondence fixed is combined as " conventional "；When DO concentration is higher than 4mg/L, it is stipulated that setting of its correspondence
For being combined as " weakening 1 ", when DO concentration is less than 2mg/L, it is stipulated that the equipment of its correspondence is combined as " strong
Change 1 ", if after running 1h under " strengthening 1 " state, DO still cannot be made to return to 2-4mg/L,
Then specify its corresponding " strengthening 2 ".
Control upper lower limit value, variable concentrations DO value and dissolved oxygen the corresponding relation input of equipment combination is controlled
In the central processing unit of system, and by software programming, central control system can be selected not according to DO value
Same equipment compound mode.
Step 3, uses the method automatically controlled to run dissolved oxygen and controls equipment regulation dissolved oxygen
Open central control system, use DO on-line computing model to detect oxyty in current reaction tank, and will
DO data reach central control system, and central control system judges the relation of DO and bound, open corresponding equipment
Combination.
When DO concentration is between 2-4mg/L, the equipment of unlatching is combined as " conventional "；When DO concentration
During higher than 4mg/L, the equipment of unlatching is combined as " weakening 1 ", when DO concentration is less than 2mg/L, opens
The equipment opened is combined as " strengthening 1 ", if after running 1h under " strengthening 1 " state, still cannot make
DO returns to 2-4mg/L, then the equipment opened is combined as " strengthening 2 ", until DO reaches 2-4mg/L
Between time, open equipment combination " conventional ".
With reference to Fig. 2, for the situation of change of DO in reaction tank in continuous 60 days, result shows, the most dirty
How the parameters such as water factory's influent quality water yield and sludge concentration change, and the excursion almost all of DO maintains
Within the 2-4mg/L set, and in this running, there is not frequently opening of surface aeration equipment
Stopping, the effective guarantee safety of equipment, this invention at present has been applied to this Sewage Plant 2 year, removed
Outside the situations such as overhaul of the equipments maintenance, the method fully achieves Full-automatic monitoring and runs, and saves largely
Save human resources, effectively maintain the stable operation of oxidation ditch.
Embodiment 2
Utilize the method for Automated condtrol biological treatment of waste water system oxyty of the present invention to certain sewage at
Reason factory carries out oxyty control.
Certain Sewage Plant Round Sump integrated oxidation ditch employing rotating brush type aerator as aerator, oxidation ditch is
Single-groove formula, rotating brush type aerator has 5.Oxidation ditch septal fossula arranges dissolved oxygen instrument.These factory rules and regulations determine reaction tank
Interior oxyty need to control between 1.5-3mg/L, i.e. the upper limit is 3mg/L, and lower limit is 1.5mg/L.
Step 1, the compound mode that different dissolved oxygens are controlled equipment is classified
First within half a year, carry out equipment operation by manually operated mode and dissolved oxygen regulates, add up half a year
Interior different dissolved oxygen controls the operation time of equipment combination, finds the operation time of " being spaced 3 " aerator
The longest, account for the 52% of total run time, " being spaced 3+1 " secondly, accounts for 26%, " interval 3
Platform-1 " account for 22%, all brush equipment standard-sized sheets that turns do not occur, and only opens the feelings turning brush equipment
Condition.Therefore the method for operation of definition " being spaced 3 " is " conventional "；The operation " being spaced 3+1 "
Mode is " strengthening 1 "；The method of operation " being spaced 3-1 " is " weakening 1 ".
Step 2, arranges the classification that under different oxyty, equipment combination is corresponding
First, setting DO span of control is at 1.5-3mg/L, when DO concentration is between 1.5-3mg/L
Time, it is stipulated that the equipment of its correspondence is combined as " conventional "；When DO concentration is higher than 3mg/L, it is stipulated that it is right
The equipment answered is combined as " weakening 1 "；When DO concentration is less than 1.5mg/L, it is stipulated that the equipment group of its correspondence
It is combined into " strengthening 1 ".
Control upper lower limit value, variable concentrations DO value and dissolved oxygen the corresponding relation input of equipment combination is controlled
In the central processing unit of system, and by software programming, central control system can be selected not according to DO value
Same equipment compound mode.
Step 3, uses the method automatically controlled to run dissolved oxygen and controls equipment regulation dissolved oxygen
Open central control system, use DO on-line computing model to detect oxyty in current reaction tank, and will
DO data reach central control system, and central control system judges the relation of DO and bound, open corresponding equipment
Combination.
When DO concentration is between 1.5-3mg/L, the equipment of unlatching is combined as " conventional "；When DO is dense
When degree is higher than 3mg/L, the equipment of unlatching is combined as " weakening 1 ", until DO reaches between 2-4mg/L
Time, open " conventional "；When DO concentration is less than 1.5mg/L, the equipment of unlatching is combined as " strengthening 1 ",
During until DO reaches between 2-4mg/L, open " conventional ".
The operation result of nearly 1 year shows, in addition to maintenance of equipment situation, oxidation ditch DO is able to maintain that all the time
Between 1.5-2.5mg/L, operational effect is good.
Although being described the preferred embodiments of the present invention above in conjunction with accompanying drawing, but the present invention is not
Being confined to above-mentioned detailed description of the invention, above-mentioned detailed description of the invention is only schematically, is not
Restrictive, those of ordinary skill in the art is under the enlightenment of the present invention, without departing from present inventive concept
In the case of scope of the claimed protection, it is also possible to making the concrete conversion of a lot of form, these are equal
Within belonging to protection scope of the present invention.
Claims (6)
1. the method for an Automated condtrol biological treatment of waste water system oxyty, it is characterised in that bag
Include following steps:
Step 1, classifies to the compound mode of different dissolved oxygens control equipment:
First, set the upper and lower bound of oxyty, open dissolved oxygen control equipment and carry out at wastewater biological
Reason, adjusts different dissolved oxygen by manually operated method and controls the combination of equipment, oxyty regulation existed
In the range of upper and lower bound, after processing at least 90 days, terminate Artificial Control；
Then, the different dissolved oxygen of statistics controls the operation time of equipment combination, and carries out by long operational time is short
Sequence, operation time the longest dissolved oxygen controls equipment combination and is defined as " conventional ", molten with time " conventional "
Oxygen concentration is reference, under identical condition of water quality, makes oxyty control toward the dissolved oxygen reducing trend development
Equipment combination is defined as " reduction ", and it is fixed that the dissolved oxygen making oxyty ramp up trend development controls equipment combination
Justice is " strengthening "；
Step 2, adjustment central control system control mode:
First, when oxyty is between upper and lower bound, it is stipulated that the dissolved oxygen control of its corresponding " conventional "
Control equipment combines；When oxyty is higher than the upper limit, it is stipulated that the dissolved oxygen of its corresponding " reduction " controls equipment
Combination；When oxyty is less than lower limit, it is stipulated that the dissolved oxygen of its corresponding " strengthening " controls equipment combination；
Then, control to set by the upper limit of the oxyty of setting, lower limit and different oxyty and dissolved oxygen
In the central processing unit of the corresponding relation input central control system of standby combination, when oxyty is at upper and lower bound
Between time, open " conventional " dissolved oxygen control equipment combine；When oxyty is higher than the upper limit, open " weak
Change " dissolved oxygen control equipment combination, when oxyty is less than lower limit, the dissolved oxygen opening " strengthening " controls
Equipment combines；
Step 3, the oxyty of the method control biological treatment of waste water system that employing automatically controls:
Open central control system, use oxyty on-line computing model to detect the oxyty in current reaction tank,
And oxyty data are reached central control system, central control system judges the relation of oxyty and bound,
The dissolved oxygen automatically controlling correspondence controls the opening and closing of equipment combination, by oxyty regulation to the upper limit and
In lower range.
The method of Automated condtrol biological treatment of waste water system oxyty the most according to claim 1,
It is characterized in that, described in step 1, " weaken " strength of adjustment controlling equipment combination according to described dissolved oxygen
It is divided into several stages, i.e. " weakens 1 ", " weakening 2 ", " weakening 3 " ..., the most corresponding different molten
Oxygen controls equipment combination, and the latter can make higher oxyty drop to the described upper limit, lower limit model than the former
In enclosing；
In step 2, when described oxyty is higher than the described upper limit, it is stipulated that it is molten that its correspondence " weakens 1 "
Oxygen controls equipment combination, if described oxyty is not also reduced to the described upper limit, lower limit after often running 1h
In the range of, then specify that the dissolved oxygen that its corresponding later " weakens " stage controls equipment combination.
The method of Automated condtrol biological treatment of waste water system oxyty the most according to claim 2,
It is characterized in that, " weaken " described in step 1 and " strengthening " is divided into the equal number of stage, or divide
For the different number of stage.
The method of Automated condtrol biological treatment of waste water system oxyty the most according to claim 1,
It is characterized in that, " strengthen " strength of adjustment according to the control equipment combination of described dissolved oxygen described in step 1 and divide
For several stages, i.e. " strengthening 1 ", " strengthening 2 ", " strengthening 3 " ..., the most corresponding different dissolved oxygen
Control equipment combines, and the latter can make lower oxyty be raised to the described upper limit, lower range than the former
In；
In step 2, when described oxyty is less than described lower limit, it is stipulated that it is molten that its correspondence " strengthens 1 "
Oxygen controls equipment combination, if described oxyty is also not raised to the described upper limit, lower limit after often running 1h
In the range of, then specify that the dissolved oxygen that its corresponding later " strengthens " stage controls equipment combination.
The method of Automated condtrol biological treatment of waste water system oxyty the most according to claim 4,
It is characterized in that, " weaken " described in step 1 and " strengthening " is divided into the equal number of stage, or divide
For the different number of stage.
The method of Automated condtrol biological treatment of waste water system oxyty the most according to claim 1,
It is characterized in that, it is rotary disk aerator or rotating brush type aerator that described dissolved oxygen controls equipment.
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6031890A (en) * | 1983-08-01 | 1985-02-18 | Toshiba Corp | Control apparatus of water treating plant |
| JP4131955B2 (en) * | 2004-01-13 | 2008-08-13 | 株式会社東芝 | Aeration air volume control device of sewage treatment plant |
| CN1319875C (en) * | 2005-08-12 | 2007-06-06 | 上海昊沧系统控制技术有限责任公司 | On-line control method for aeration quantity in sewage biological treatment technique |
| CN201828788U (en) * | 2010-10-08 | 2011-05-11 | 北京电子科技职业学院 | Automatic dissolved oxygen measuring and controlling system and aerobic organism treatment equipment |
| CN104090488B (en) * | 2014-06-30 | 2017-08-04 | 北京清控人居环境研究院有限公司 | The method that sewage plant controls dissolved oxygen, sludge loading and sludge age in real time automatically |
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2015
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