CN105984951A - SBR device for realizing rapid sludge settlement, and application thereof - Google Patents
SBR device for realizing rapid sludge settlement, and application thereof Download PDFInfo
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Abstract
The invention provides an SBR device for realizing rapid sludge settlement. The device comprises a cylindrical reactor main body, a water feeding unit used for feeding sewage to be treated, an aeration unit, a dosing unit and a sequencing batch mode control unit, a water feeding tube enters the cylindrical reactor main body, and an aerator connected with a gas feeding tube is arranged in the cylindrical reactor main body; and the dosing unit comprises a reagent preparing box positioned outside the cylindrical reactor main body, the reagent preparing box is connected with a dosing metering pump, a reagent feeding valve and a dosing tube, and the dosing tube enters the cylindrical reactor main body. An organically charged nanometer flocculating agent is used to rapidly coagulate flocculent activated sludge in a biochemical reaction tank and a secondary settlement tank into particles, and a coagulation substance rapidly coagulates under the electrode action of nano-crystals, so the settlement speed of suspensions is accelerated, the settlement time of the activated sludge is shortened, the concentration of sludge in the reactor is increased, and the tank volume utilization rate of the reactor is improved.
Description
Technical field
The invention belongs to field of waste water treatment, be specifically related to a kind of sequencing batch active sludge waste water
Process equipment and the method for technique.
Background technology
Sequencing batch reactor (SBR) is in same reactor, by friendship in time
The whole of traditional activated sludge process is realized for water inlet, aeration, precipitation, draining and five operations of standing
Individual process.SBR method is preferably used for medium and small town sewage and Industrial Wastewater Treatment engineering.According to system
Meter, in built 2716 urban wastewater treatment firms in the whole nation in 2011, has more than the dirt of 17.7%
Water factory have employed SBR and deformation technique thereof.Most sbr reactor device is all to become water level fortune
Row, in the whole service cycle, the water level in sbr reactor device is not in 100% all the time
Level, water inlet and strain water and stand during part pond hold be idle, to a certain extent
Say that the method for operation of sbr reactor device reduces reactor service efficiency, thus the work of microorganism
Making time efficiency can be lower, finally affects effluent quality.
Along with China's rapid economic development and growth in the living standard, my many sewage water yield is day by day
Increasing, many municipal sewage treatment scales are not enough, and sewage treatment plant is generally in " over loading "
Operating condition.Constant overload runs and biological processing unit Sludge Property is deteriorated, and processes effect
Fruit declines, Mud up-floating and then affect the settling property of mud, and ultimately resulting in water outlet cannot stablize
Up to standard.Meanwhile, water pollution control standard is had higher requirement by governments at all levels of China, because of
This, major part sewage treatment plant faces technological transformation, the Tough questions of lifting process standard at present.
Part of contaminated water treatment plant uses and adds the chemical agents such as PAM, Polyferric Sulfate, poly-aluminum as emergent hands
Section, it is achieved the mud rapid precipitation of urban wastewater treatment firm, improves effluent quality.But these
The not only dosing that adds of traditional flocculant greatly, increases operating cost；And increase mud and produce
Raw amount, in turn results in follow-up Treatment of Sludge load and increases；Additionally, residual ion concentration is higher,
It is likely to result in secondary pollution problem.
Summary of the invention
In place of the deficiencies in the prior art, the purpose of the present invention is to propose to a kind of dirty for city
The SBR equipment realizing mud rapid subsidence that water processes.
The method that it is another object of the present invention to propose to apply described equipment to process sewage.
The technical scheme realizing the object of the invention is:
A kind of SBR equipment realizing mud rapid subsidence, including cylindricality reactor body, use
In treatment sewage water inlet inlet unit, aeration unit, dosing unit, 75% draining than time
Outlet valve, 50% draining than time outlet valve, sequence batch mode control unit,
Described inlet unit includes intake pump, with the water inlet pipe of water intaking valve and water distribution uniformity
Device, described water inlet pipe enters cylindricality reactor body, and the even water distributor that water inlet pipe connects is arranged
In cylindricality reactor body bottom；
Described aeration unit includes the aerator being arranged on outside cylindricality reactor body, and aerator is even
Tape splicing has air inlet pipe and the aerator of intake valve, and described air inlet pipe enters cylindricality reactor master
Body, the aerator that air inlet pipe connects is arranged in cylindricality reactor body, is positioned at described uniform cloth
The lower section of hydrophone；
Described dosing unit includes the Scatula being positioned at outside cylindricality reactor body, and Scatula connects
Having dosing dosing pump, enter medicine valve and chemical feed pipe, described chemical feed pipe enters in cylindricality reactor body,
Described sequence batch mode control unit also includes an electric cabinet, arranges Two-way Cycle in electric cabinet
Digital display time relay and auxiliary reclay, described Two-way Cycle digital display time relay connects middle
Relay, described auxiliary reclay connects described water intaking valve, intake valve, enters medicine valve.
Wherein, described even water distributor is made up of many water distributors, and described water distributor is arranged as
Grid type, barrier type, radiation or fishbone, water distributor arranges two arrangement water holes, cloth down
The centrage in water hole and plumb line angle at 45 °.
Two arrangement preferably both sides, water hole are arranged symmetrically with, and reach water distribution uniformity.
Preferably, described aerator is microporous aeration disc.
Further, being provided with agitator in described Scatula, described chemical feed pipe is antipriming pipe,
The medicine feeding hole opened in downward direction is arranged.
Wherein, described cylindricality reactor body top is provided with overfall valve, and bottom is provided with
Mud valve.
Further, described cylindricality reactor body is provided with the first draining than time outlet valve
With the second draining than time outlet valve；Described first draining than time outlet valve be arranged on cylindricality reactor
Main body 70-80% from bottom to top highly locates, described second draining than time outlet valve be arranged on cylindricality
Reactor body 40-60% highly locates；Two drain valves are all connected with auxiliary reclay.Whole
Control system divides auto-manual two parts, can either realize unattended fully automatic operation, also
Manual mode can be adjusted to carry out detecting, revising.
The method applying equipment Treating Municipal Sewage of the present invention, including:
Step one, opens water intaking valve and intake pump, and this step inflow controls in treating capacity
55-65%；
Step 2, after step one water inlet, closes inlet valve and intake pump, opens aeration simultaneously
Valve and aerator, air enters reactor by the micro-hole aerator of reactor bottom, this step
Rapid aeration time controls the 55-65% for total aeration time；
Step 3, is again turned on water intaking valve and intake pump, identical with step one in the environment of run,
This time inflow controls the 27-33% in treating capacity；
Step 4, closes inlet valve and intake pump, opens aeration valve and aerator simultaneously,
Running in the environment of identical with step 2, this time aeration time controls as total aeration time
27-33%；
Step 5, is again turned on water intaking valve and intake pump, identical with step one in the environment of run,
This time inflow controls the 8-12% in treating capacity；
Step 6, closes inlet valve and intake pump, opens aeration valve and aerator simultaneously,
Running in the environment of identical with step 2, this time aeration time controls as total aeration time
8-12%；
Step 7, closes aerator and aeration valve, activated sludge under nano flocculant effect,
Form bulky grain flco, precipitate 4-8 minute；
Step 8, opening water discharge valve, draining also stands 4-8 minute.An operation is completed to this
Cycle.Repeat above-mentioned steps afterwards.
In step one, after opening water intaking valve and intake pump, sewage passes through the uniform cloth of reactor bottom
Hydrophone enters reactor, with the relatively low rate of climb by bottom activated sludge layer, forms anaerobism
Environment, it is achieved denitrification denitrogenation and anaerobic phosphorus release reaction.Inflow flooding time control, enters
The water time is preferably controlled to the 60% of total flooding time.
Step 2 is opened aeration valve and aerator and is formed aerobic environment, it is achieved organic go
Remove, the oxidation of ammonia nitrogen and aerobic phosphorus absorption reaction.
In described step 6, stop first 2 minutes of aeration at aerator, open dosing valve and add
Teat pipette, within controlling 1 minute, dosing completes, and is then shut off dosing pump and dosing valve, added
Medicament is flocculant.
Described flocculant is nano flocculant, be selected from nano level powder polyacrylamide,
One or more in the acid of Nano chitosan, nano polysilicon, nano polyaluminium chloride.Realize living
Property mud rapid subsidence suppresses sludge bulking simultaneously；
The present invention has precipitated in can reach 5 minutes.It is preferred that in step 7 during precipitation
Between 5 minutes.
Wherein, in step 8, draining stands 5 minutes.
Described method, the periodicity controlling operating procedure one to eight every day is 2-8；Each
In cycle, the ratio of water inlet total time and aeration total time is between 1:1.5～1:2.
The beneficial effects of the present invention is:
The present invention uses possessed the nano flocculant of special organic charge can be anti-by biochemistry
Answering the cotton-shaped activated sludge in pond and second pond to be rapidly condensed into particulate form, condensation product relies on nanometer
The electrode effect of crystal is quickly condensed, thus accelerates the sedimentation velocity of float, and then shortens
The activated sludge sedimentation time, i.e. shorten the reaction time of batch-type control model, can carry simultaneously
Sludge concentration in high reactor, improves the utilization rate of tank volume of reactor；Additionally, employing pulse
Water inlet, controls anaerobism water inlet, the repetitive cycling of aerobic aeration, can be by the nitre of previous circulation
Change liquid and the original denitrification for Removing Nitrogen that realizes under anaerobic environment, improve denitrification effect；In addition anaerobism
-aerobic environment is conducive to releasing phosphorus and inhaling the reaction of phosphorus, and nano flocculant may also function as chemical dephosphorization
Effect, therefore can realize continual and steady denitrogenation dephosphorizing under overload condition efficiently processes effect
Really.
Accompanying drawing explanation
Fig. 1 is that the structure of the SBR equipment realizing mud rapid subsidence of the embodiment of the present invention is shown
It is intended to；
Fig. 2 is the even water distributor structural representation of the embodiment of the present invention；
Fig. 3 is the front view of even water distributor；
Fig. 4 is a water distributor front view；
Fig. 5 is the A-A face sectional view of Fig. 4.
In figure, 1-main reactor；2-intake pump；3-water intaking valve；4-even water distributor；5-air blast
Machine；6-intake valve；7-micro-hole aerator；8-75% draining than time drain valve；9-50% draining ratio
Time drain valve；10-overfall valve；11-chemical feed pipe；12-enters medicine valve；13-dosing dosing pump；
The Scatula of 14-band stirring；15-mud valve；16-sequence batch mode control unit；17-water distributor；
18-water distributing pore.
Detailed description of the invention
Now with following example, the present invention is described, but is not limited to the scope of the present invention.Real
Execute the means used in example, if no special instructions, all use the means that this area is conventional.
The flocculant used in embodiment is Nanofloc A 644, purchased from VTA group of Austria
Company._
Embodiment 1:
Seeing Fig. 1, a kind of SBR equipment realizing mud rapid subsidence, including cylindricality reactor
Main body 1, for treatment sewage water inlet inlet unit, aeration unit, dosing unit, 75%
Draining than time outlet valve 8,50% draining than time outlet valve 9, sequence batch mode control unit,
Inlet unit includes intake pump 2, with the water inlet pipe of water intaking valve 3 and even water distributor
4, described water inlet pipe enters cylindricality reactor body 1, the even water distributor 4 that water inlet pipe connects
It is arranged on cylindricality reactor body 1 bottom；Cylindricality reactor body 1 top is provided with overfall
Valve 10, bottom is provided with mud valve 15.
Aeration unit includes the aerator 5 being arranged on outside cylindricality reactor body 1, aerator 5
Connecting the air inlet pipe with intake valve 6 and aerator 7, described air inlet pipe enters cylindricality reaction
Device main body 1, the aerator 7 that air inlet pipe connects is arranged in cylindricality reactor body 1, is positioned at
The lower section of described even water distributor 4；Aerator 7 is microporous aeration disc.
Described dosing unit includes the Scatula 14 being positioned at outside cylindricality reactor body 1, makes up a prescription
Case 14 connects dosing dosing pump 13, enter medicine valve 12 and chemical feed pipe 11, described chemical feed pipe 11
Entering in cylindricality reactor body 1, be provided with agitator in Scatula 14, chemical feed pipe is many
Kong Guan, the medicine feeding hole opened in downward direction is arranged.
Sequence batch mode control unit includes an electric cabinet 16, arranges Two-way Cycle number in electric cabinet
The aobvious time relay and auxiliary reclay, described Two-way Cycle digital display time relay connects middle continuing
Electrical equipment, described auxiliary reclay connects described water intaking valve 3, intake valve 6, enters medicine valve 12,75%
Draining than time outlet valve 8 and 50% draining than time outlet valve 9.Whole control system is divided from starting
Dynamic two parts, can either realize unattended fully automatic operation, it is also possible to be adjusted to manual mould
Formula carries out detecting, revising.
Seeing Fig. 2 to Fig. 5, even water distributor 4 is made up of many water distributors 14, water distributor
14 are arranged as barrier type, and body is opened two arrangement water holes, the centrage of water distributing pore and lead down
Vertical line angle at 45 °, both sides are arranged symmetrically with, and reach water distribution uniformity.
Embodiment 2:
The equipment of Application Example 1, main reactor effective working volume 3L.Sewage disposal
Cheng Wei:
Step one, in advance in Scatula 14 by nano flocculant with the dilution ratio of 1:100
Dilution, turn on agitator makes its mix homogeneously, then stops stirring.Nano flocculant is diluted
So that control dosage, reduce because of stock solution dosage bigger error very little.
Step 2, raw sewage is delivered in main reactor 1 by bottom through intake pump 2, in anaerobism
Under the conditions of, control flooding time be the 60% of total flooding time, i.e. inflow be every batch water inlet
The 60% of total amount, is then shut off intake pump 2, opens aerator 5 simultaneously, and air exposes through micropore
Trachea 7 enters reactor, forms aerobic environment, and controlling aeration time is total aeration time
60%；
Step 3, closes aerator 5, is again turned on intake pump 2, and it is total for controlling flooding time
The 30% of flooding time, i.e. inflow are the 30% of every batch inflow, are then shut off intake pump
2, it is again turned on aerator 5, controlling aeration time is the 30% of total aeration time；
Step 4, is again switched off aerator 5, opens intake pump 2, and it is total for controlling flooding time
The 10% of flooding time, i.e. inflow are the 10% of every batch inflow, are then shut off intake pump
2, it is again turned on aerator 5, controlling aeration time is the 10% of total aeration time；
Step 5, before the aeration of step 4 terminates when 2 minutes, opens dosing pump 13, presses
Adding nano flocculant according to the ratio that chemical feeding quantity is 20 μ l stock solutions/L sewage, time of administration controls
In 1 minute, close dosing pump 13；
Step 6, after aeration terminates, closes aerator 5, staticly settles 5 minutes, it is achieved Gu
Liquid separates；
Step 7, after precipitation terminates, Open valve 9, the supernatant after discharge process, then
Stand, control total time 5 minutes, now constitute a cycle, stand and after terminating, open water inlet
Pump, enters next cycle period.
Using the technical scheme of this example, effect is as follows:
Average inlet COD concentration is 240mg/L, and effluent COD concentration is less than 50mg/L,
Intaking average ammonia nitrogen 23mg/L, water outlet ammonia nitrogen is less than 3mg/L, and average water inlet TN concentration is
32mg/L, water outlet TN concentration is less than 15mg/L, and average water inlet TP concentration is 3.7mg/L,
Water outlet TP concentration is less than 10mg/L, sludge settling property SVI less than 0.5mg/L, water outlet SS
Average 50, the sedimentation time is less than 5 minutes, and water discharge time is less than 5 minutes.
The sedimentation time 1h of contrast conventional SBR technology and water discharge time 1.0～1.5h, shorter
Sedimentation time and water discharge time in, ensured wastewater treatment efficiency, embodied rapid subsidence and carry
Significant advantage on high capacity utilization.
Embodiment 3
Operating procedure is with embodiment 2, and difference is to carry out 8 circulations every day, during water inlet
Between and aeration time be respectively 60min and 110 minutes.
Embodiment 4
Operating procedure is with embodiment 2, and difference is to carry out 8 circulations every day, during water inlet
Between and aeration time be respectively 60min and 110 minutes.Volume-exchange ratio is 75%.Volume
Exchanging ratio is each cycle to discharge water yield percentage ratio of the total volume.This numerical value does not affect water inlet
Index, an impact processes the water yield.
The concrete operating mode of three embodiments is as shown in table 1.
The concrete operating mode of table 1 embodiment
Above embodiment is only to be described the preferred embodiment of the present invention, the most right
The scope of the present invention is defined, on the premise of designing spirit without departing from the present invention, and this area
Various modification that technical scheme is made by ordinary skill technical staff and improvement, all should
Fall in the protection domain that claims of the present invention determines.
Claims (10)
1. the SBR equipment realizing mud rapid subsidence, it is characterised in that include cylindricality
Reactor body (1), the inlet unit for treatment sewage water inlet, aeration unit, dosing
Unit, sequence batch mode control unit,
Described inlet unit include intake pump (2), with water intaking valve (3) water inlet pipe and
Even water distributor (4), described water inlet pipe enters cylindricality reactor body (1), and water inlet pipe connects
Even water distributor (4) be arranged on cylindricality reactor body (1) bottom；
Described aeration unit includes being arranged on cylindricality reactor body (1) aerator (5) outward,
Aerator (5) connects with the air inlet pipe of intake valve (6) and aerator (7), described in enter
Trachea enters cylindricality reactor body (1), and the aerator (7) that air inlet pipe connects is arranged on post
In shaped reaction device main body (1), it is positioned at the lower section of described even water distributor (4)；
Described dosing unit includes being positioned at cylindricality reactor body (1) Scatula (14) outward,
Scatula (14) connects dosing dosing pump (13), enter medicine valve (12) and chemical feed pipe (11),
Described chemical feed pipe (11) enters in cylindricality reactor body (1)；
Described sequence batch mode control unit also includes an electric cabinet (16), arranges in electric cabinet
Two-way Cycle digital display time relay and auxiliary reclay, described Two-way Cycle digital display time relay is even
Connect auxiliary reclay, described auxiliary reclay electrically connect described water intaking valve (3), intake valve (6),
Enter medicine valve (12).
2. according to the SBR equipment described in claim, it is characterised in that described uniform cloth
Hydrophone is made up of many water distributors, and described water distributor is arranged as grid type, barrier type, radiation
Or fishbone, water distributor arranges two arrangement water holes down, and the centrage of water distributing pore becomes with plumb line
45° angle；Described aerator (7) is microporous aeration disc.
SBR equipment the most according to claim 1, it is characterised in that described makes up a prescription
Being provided with agitator in case (14), described chemical feed pipe is antipriming pipe, and the medicine feeding hole opened is downward
Direction is arranged.
4. according to the arbitrary described SBR equipment of claim 1-3, it is characterised in that described
Cylindricality reactor body (1) top is provided with overfall valve (10), and bottom is provided with spoil disposal
Valve (15).
5. according to the arbitrary described SBR equipment of claim 1-4, it is characterised in that in institute
State be provided with on cylindricality reactor body (1) the first draining than time outlet valve (8) and second row
Water than time outlet valve (9)；Described first draining than time outlet valve (8) be arranged on cylindricality reaction
Device main body (1) 70-80% from bottom to top highly locates, described second draining than time outlet valve (9)
It is arranged on cylindricality reactor body (1) 40-60% highly to locate；Two drain valves all with described in
Between relay connect.
6. the method for the arbitrary described equipment Treating Municipal Sewage of application claim 1-5, its
It is characterised by, including:
Step one, opens water intaking valve and intake pump, and this step inflow controls in treating capacity
55-65%；
Step 2, after step one water inlet, closes inlet valve and intake pump, opens aeration simultaneously
Valve and aerator, air enters reactor by the micro-hole aerator of reactor bottom, this step
Rapid aeration time controls the 55-65% for total aeration time；
Step 3, is again turned on water intaking valve and intake pump, identical with step one in the environment of run,
This time inflow controls the 27-33% in treating capacity；
Step 4, closes inlet valve and intake pump, opens aeration valve and aerator simultaneously,
Running in the environment of identical with step 2, this time aeration time controls as total aeration time
27-33%；
Step 5, is again turned on water intaking valve and intake pump, identical with step one in the environment of run,
This time inflow controls the 8-12% in treating capacity；
Step 6, closes inlet valve and intake pump, opens aeration valve and aerator simultaneously,
Running in the environment of identical with step 2, this time aeration time controls as total aeration time
8-12%；
Step 7, closes aerator and aeration valve, activated sludge under nano flocculant effect,
Form bulky grain flco, precipitate 4-8 minute；
Step 8, opening water discharge valve, draining also stands 4-8 minute, completes an operation to this
In the cycle, repeat above-mentioned steps afterwards.
Method the most according to claim 6, it is characterised in that in described step 6,
Stop first 2 minutes of aeration at aerator, open dosing valve and dosing pump, control 1 minute it
Interior dosing completes, and is then shut off dosing pump and dosing valve, and institute's adding medicine is flocculant.
Method the most according to claim 6, it is characterised in that in step 7 during precipitation
Between 5 minutes.
Method the most according to claim 6, it is characterised in that in step 8, draining is quiet
Put 5 minutes.
10. according to the arbitrary described method of claim 6-9, it is characterised in that every day controls
The periodicity of operating procedure one to eight is 2-8；In each cycle, water inlet total time and aeration
The ratio of total time is between 1:1.5～1:2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510078593.8A CN105984951A (en) | 2015-02-13 | 2015-02-13 | SBR device for realizing rapid sludge settlement, and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510078593.8A CN105984951A (en) | 2015-02-13 | 2015-02-13 | SBR device for realizing rapid sludge settlement, and application thereof |
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| Publication Number | Publication Date |
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| CN105984951A true CN105984951A (en) | 2016-10-05 |
Family
ID=57042455
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510078593.8A Pending CN105984951A (en) | 2015-02-13 | 2015-02-13 | SBR device for realizing rapid sludge settlement, and application thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106745829A (en) * | 2017-03-28 | 2017-05-31 | 天津大学 | One kind aeration is intake into medicine integrated apparatus |
| CN108946954A (en) * | 2018-06-14 | 2018-12-07 | 浙江工业大学 | A method of by being formed, sludge accumulation body quickly controls sludge bulking and energy is steady in a long-term |
| CN109081452A (en) * | 2018-08-17 | 2018-12-25 | 广州市市政工程设计研究总院有限公司 | A kind of sequencing wastewater treatment device that immobilization carrier biomembrane is coupled with activated sludge and technique |
| CN111302565A (en) * | 2020-03-03 | 2020-06-19 | 清华大学 | Sewage treatment method based on flocculation precipitation coupling sequencing batch activated sludge technology |
| CN112607854A (en) * | 2020-12-02 | 2021-04-06 | 北京工业大学 | Method for rapidly regulating and controlling malignant swelling of activated sludge in SBR (sequencing batch reactor) |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106745829A (en) * | 2017-03-28 | 2017-05-31 | 天津大学 | One kind aeration is intake into medicine integrated apparatus |
| CN108946954A (en) * | 2018-06-14 | 2018-12-07 | 浙江工业大学 | A method of by being formed, sludge accumulation body quickly controls sludge bulking and energy is steady in a long-term |
| CN109081452A (en) * | 2018-08-17 | 2018-12-25 | 广州市市政工程设计研究总院有限公司 | A kind of sequencing wastewater treatment device that immobilization carrier biomembrane is coupled with activated sludge and technique |
| CN109081452B (en) * | 2018-08-17 | 2024-01-23 | 广州市市政工程设计研究总院有限公司 | Sequencing batch sewage treatment device and process with immobilized carrier biological membrane and activated sludge coupled |
| CN111302565A (en) * | 2020-03-03 | 2020-06-19 | 清华大学 | Sewage treatment method based on flocculation precipitation coupling sequencing batch activated sludge technology |
| CN112607854A (en) * | 2020-12-02 | 2021-04-06 | 北京工业大学 | Method for rapidly regulating and controlling malignant swelling of activated sludge in SBR (sequencing batch reactor) |
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Application publication date: 20161005 |
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