CN105110468B - A kind of method that integral biological reaction tank using multi-mode operation handles sewage - Google Patents
A kind of method that integral biological reaction tank using multi-mode operation handles sewage Download PDFInfo
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- CN105110468B CN105110468B CN201510533957.7A CN201510533957A CN105110468B CN 105110468 B CN105110468 B CN 105110468B CN 201510533957 A CN201510533957 A CN 201510533957A CN 105110468 B CN105110468 B CN 105110468B
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Abstract
The invention discloses a kind of method that integral biological reaction tank using multi-mode operation handles sewage, the biological reaction pool includes biological selecting area, pre- anoxic zone, main reaction region, water distributing area, exhalant region and interior backflow canal；Main reaction region includes A areas, B areas and C areas；A areas can be used as anaerobic zone or anoxic zone when running, B areas and C areas can be used as anaerobic zone or anoxic zone when running as aerobic zone.Biological selecting area is located at reaction tank most leading portion, is located at provided with pre- anoxic zone, water distributing area between A areas, B areas and C areas thereafter, and exhalant region is between B areas and C areas, interior backflow canal connection exhalant region and water distributing area.The method that integral biological reaction tank provided by the invention using multi-mode operation handles sewage, with the characteristics of intensive, occupation of land is small, number of devices is few, can be with multi-mode alternate run, pattern switching freedom and flexibility, anti impulsion load, high-efficiency biological nitrogen and phosphorus removal can be realized in the case where influent quality amplitude of variation is larger.
Description
Technical field
The present invention relates to a kind of sewage water treatment method, in particular it relates to which a kind of use can be with the integration of multi-mode operation
The method that biological reaction pool handles sewage.
Background technology
In recent years, sewage disposal come into should efficient organics removal high-efficient denitrification and dephosphorization again advanced treating rank
Section, high-efficiency biological nitrogen and phosphorus removal technology turns into the study hotspot of current sewage treatment area, when influent quality amplitude of variation is larger
When, ensure that efficient biological carbon and phosphorous removal effect is more important.At present, or standard biologic reaction tank is by just putting AAO（Anaerobism-
Anaerobic-aerobic）Pattern or inversion A AO（Anoxic-anaerobic-aerobic）Mode operation, otherwise press alternative expression mode operation, as SBR,
The techniques such as UNITANK, operational mode is more single, when influent quality amplitude of variation is larger and the exigent feelings of stable water outlet
Under condition, process above limits the development of sewage treatment industry to a certain extent.
The content of the invention
It is an object of the invention to provide a kind of method for sewage disposal, by by each module organic assembling in a pond
Interior completion, reach effect intensive, that occupation of land is small, number of devices is few, both can just put AAO（Anaerobic- anoxic- oxic）Pattern is transported
OK, also can inversion A AO（Anoxic-anaerobic-aerobic）Mode operation, can also alternately it be transported according to water quality situation, multi-mode alternate run
Row mode is up to more than 6 kinds, various pattern switching freedom and flexibility, and anti impulsion load can be larger in influent quality amplitude of variation
In the case of realize high-efficiency biological nitrogen and phosphorus removal.
In order to achieve the above object, the invention provides a kind of integral biological reaction tank using multi-mode operation to be handled
The method of sewage, wherein, the biological reaction pool that this method uses includes biological selecting area, pre- anoxic zone, main reaction region, water distribution
Area, exhalant region and interior backflow canal；Described main reaction region includes A areas, B areas and C areas；Described A areas being capable of conduct when running
Anaerobic zone or anoxic zone, B areas and C areas can be used as anaerobic zone or anoxic zone when running as aerobic zone.The integration
Biological reaction pool both can just put AAO（Anaerobic- anoxic- oxic）Mode operation, also can inversion A AO（Anoxic-anaerobic-aerobic）Pattern
Operation, can also be according to water quality situation, and multi-mode alternate run, alternate run pattern is up to more than 6 kinds；Operational mode is various, cuts
Change flexibly and easily, can adapt to influent quality significantly change and meet effluent quality requirement.
The method that the above-mentioned integral biological reaction tank using multi-mode operation handles sewage, wherein, described biology
Selection area is located at reaction tank most leading portion, is reacted in area for pulling flow type, sets water inlet pipe and mechanical agitator, the mechanical agitator
Can be that submersible agitator can also be the other types such as turbine stirrer；Pulling flow type reaction is with plug-flow liquid form
Reaction is learned, identical order is discharged when the liquid material particle passed through is with entering, and its residence time is equal to theoretical residence time,
Reduce or eliminate longitudinal peptizaiton.It is most common a kind of form in water treatment procedure；Set on described water inlet pipe
Flexible joint, facilitate the installation of reaction tank inlet and outlet piping to be connected, be also prevented from reaction tank and build up pipeline caused by rear differential settlement
Dislocation and tensile phenomenon；The top of the biological selecting area is provided with exteenal reflux sludge canal, and adjustable checkgate is provided with canal or adjusts stream to adjust
To valve, bioselection can be realized by the ratio of reasonable adjusting exteenal reflux sludge and water inlet mixing, suppress the growth of der Pilz,
The Zoogloea bacteria favourable to water process is filtered out, ensures the stable operation of reaction tank；Biological selecting area described in during operation
Processing time is that hydraulic detention time is 0.2 ~ 0.5h.
The method that the above-mentioned integral biological reaction tank using multi-mode operation handles sewage, wherein, described biology
Selection area rear is provided with pre- anoxic zone, and by setting partition wall to be distinguished with bioselection, partition wall top is provided with for the pre- anoxic zone
High-order water hole, water hole can prevent the short stream of sewage, improve reaction effect；Reacted in described pre- anoxic zone for pulling flow type,
Mechanical agitator is set, and the mechanical agitator can be that submersible agitator can also be the other types such as turbine stirrer；Institute
The exteenal reflux sludge canal stated extends to pre- anoxic zone from the biological selecting area, and outer return is provided with the access with pre- anoxic zone
Flow sludge conditioning weir gate or adjust stream tuning valve；The area can eliminate adjoint in the dissolved oxygen and water inlet of molecular state in returned sludge
Dissolved oxygen realizes efficient dephosphorization to the adverse effect of anaerobic zone.Partition wall bottom sets small-bore relief tube, to strengthen partition wall knot
Structure stability and reduction wall thickness.The processing time of pre- anoxic zone described in during operation is 0.5 ~ 1h.
The method that the above-mentioned integral biological reaction tank using multi-mode operation handles sewage, wherein, described A areas with
Pre- anoxic zone is separated by partition wall, and partition wall bottom is provided with low level water hole, and sewage can be from there into water hole can prevent dirt
The short stream of water, improve reaction effect；Submersible water impeller is set in A areas, aerator and diving propelling are respectively provided with B areas and C areas
Device, described aerator are surface aeration oxygen replenishing equipment or the micro-hole aerator for being placed in bottom of pond；Described A areas and B areas, B areas
Separated respectively by partition wall between C areas.A areas, B areas and C district's groups into main reaction region in for be thoroughly mixed formula reaction, main reaction
Area's processing time can calculate according to denitrogenation dephosphorizing target call and determine.
The method that the above-mentioned integral biological reaction tank using multi-mode operation handles sewage, wherein, described C areas,
Full pond blow-down pipe is set by inlet segment at it and valve is installed, described full pond blow-down pipe includes middle position blow-down pipe and bottom is vented
Pipe, middle position blow-down pipe debug cultivation when being built up for reaction tank, bottom blow-down pipe is cut off the water maintenance for full pond；The A areas and institute
State and be additionally provided with built-in pipe between B areas and can be connected by the built-in pipe, described built-in pipe is ductile iron pipe or steel pipe, built-in pipe
Gate is set by A areas one end at it or valve is set in the middle part of built-in pipe, when reaction tank is with anoxic-anaerobic-aerobic mode operation
During pond emptying complete with reaction tank, the gate or valve of built-in pipe are opened.
The method that the above-mentioned integral biological reaction tank using multi-mode operation handles sewage, wherein, described B areas and
Between C areas, its partition wall top is provided with channel, connects exhalant region and water distributing area, and the channel is described interior backflow canal；Described
Interior backflow canal is being respectively equipped with gate with exhalant region or water distributing area junction, and the bottom of interior backflow canal is communicated with hole.
The method that the above-mentioned integral biological reaction tank using multi-mode operation handles sewage, wherein, described interior time
Stream canal, which can also serve as, surmounts canal, and when B areas and C areas equipment stop transport when overhauling, sewage is through biological selecting area, pre- anoxic zone, main reaction A
Can directly it surmount to exhalant region after area's processing.
The method that the above-mentioned integral biological reaction tank using multi-mode operation handles sewage, wherein, described water distribution
Area is located between A areas, B areas and C areas and can connect three regions, and the planar profile of the water distributing area is triangle, three sides
It is adjacent with A areas, B areas and C areas respectively, and the valve or weir gate that can be connected with A areas, B areas and C areas are set respectively, both can be with
The water inlet from A areas is distributed, can also control and distribute the nitrification liquid from interior backflow canal.
The method that the above-mentioned integral biological reaction tank using multi-mode operation handles sewage, wherein, described water outlet
Area is symmetrical arranged between B areas and C areas with water distributing area；Described exhalant region planar profile is triangle, and base is close to biology
The side of reaction tank is simultaneously parallel with the side of the biological reaction pool, and another both sides are adjacent with B areas and C areas respectively and setting can respectively
Connect the valve or weir gate in main reaction B areas and C areas；Outlet pipe and at least 2 interior reflux pumps, and setting are set in described exhalant region
Put and surmount control valve；When described interior reflux pump is opened, pumping nitrification liquid along interior backflow canal to water distributing area, further according to need by
Any one in water distributing area to A areas, B areas, C areas；Described interior reflux pump is pump through walls or submersible axial flow pump, preferably through walls
Pump；Flexible joint is set on described outlet pipe, facilitates the installation of reaction tank inlet and outlet piping to be connected, is also prevented from after reaction tank builds up
Pipeline dislocation and tensile phenomenon caused by differential settlement.
The method that the above-mentioned integral biological reaction tank using multi-mode operation handles sewage, wherein, the water distributing area
Bi-directional compression is both designed as with the valve in exhalant region and weir gate；Described interior backflow canal, when reflux pump is opened, interior backflow canal
Opened to water distributing area gate；The canal that flows back inside, which is used as, surmounts canal in use, the closing of interior reflux pump, water distributing area to B areas and C areas valve
Or weir gate is closed, interior backflow canal to water distributing area gate and interior backflow canal to exhalant region gate are all opened；Normally transported in B areas and C areas
During row, interior backflow canal is normally closed to exhalant region gate.
The method of integral biological reaction tank processing sewage provided by the invention using multi-mode operation has following excellent
Point：
（1）Each module organic assembling of biological reaction pool is completed in a pond, intensive, occupation of land is small, number of devices is few, and one
Body biological reaction pool both can just put AAO（Anaerobic- anoxic- oxic）Mode operation, also can inversion A AO（Anoxic-anaerobic-aerobic）
Mode operation, can also be according to water quality situation, and multi-mode alternate run, alternate run pattern is up to more than 6 kinds；Operational mode is more
Sample, switching is flexible, can adapt to influent quality significantly change and meets effluent quality requirement.
（2）Reaction tank leading portion sets biological selecting area, can pass through reasonable adjusting exteenal reflux sludge and the ratio of water inlet mixing
Bioselection is realized, suppresses the growth of der Pilz, filters out the Zoogloea bacteria favourable to water process, ensures reaction tank stabilization
Operation.
（3）Reaction tank sets pre- anoxic zone, can eliminate adjoint molten in the dissolved oxygen and water inlet of molecular state in returned sludge
Oxygen is solved to the adverse effect of anaerobic zone, realizes efficient dephosphorization.
（4）When reaction tank alternate run, according to influent quality, may choose whether to run interior reflux pump.Such as work as water inlet
When total nitrogen concentration is relatively low, interior reflux pump can not be run, interior flow back is realized by the intercommunicating pore between aerobic zone and anoxic zone；When entering
When water total nitrogen concentration is higher, enables interior reflux pump and increase interior backflow, realize efficient denitrification.
（5）Interior backflow canal, which also serves as, surmounts canal use, realizes function and service, does not increase extra quantities, be conveniently aerated and stir
Mix device overhaul of the equipments and operational management.
Brief description of the drawings
Fig. 1 is the structural representation that the integral biological reaction tank using multi-mode operation of the present invention handles the method for sewage
Figure.
Fig. 2 is that the integral biological reaction tank using multi-mode operation of the present invention handles section at the aa of the method for sewage
Schematic diagram.
Fig. 3 is that the exhalant region of the method for the integral biological reaction tank processing sewage using multi-mode operation of the present invention cuts open
Face schematic diagram.
Fig. 4 be the present invention using multi-mode operation integral biological reaction tank handle sewage method the first just
Put AAO pattern diagrams.
Fig. 5 is handling second of the method for sewage for the integral biological reaction tank using multi-mode operation of the present invention just
Put AAO pattern diagrams.
Fig. 6 is the inversion A AO that the integral biological reaction tank using multi-mode operation of the present invention handles the method for sewage
Pattern diagram.
Fig. 7 is the alternate run that the integral biological reaction tank using multi-mode operation of the present invention handles the method for sewage
Schematic diagram.
Embodiment
The embodiment of the present invention is further described below in conjunction with accompanying drawing.
As shown in figure 1, the method that the integral biological reaction tank provided by the invention using multi-mode operation handles sewage,
Include biological selecting area 22, pre- anoxic zone 23, main reaction region 24, water distributing area 25, exhalant region 26 and interior backflow canal 27.
The biological reaction pool leading portion sets biological selecting area 22, pre- anoxic zone 23.Water inlet enters bioselection from water inlet pipe 1
Area 22；Exteenal reflux sludge enters exteenal reflux sludge canal 17 from exteenal reflux sludge pipe 3, and exteenal reflux sludge canal 17 accesses biological selecting area
22 and pre- anoxic zone 23 is extended to, at least provided with 2 adjustable checkgates or stream tuning lock is adjusted at its access with pre- anoxic zone 23
Door 4 carries out pro rate and bioselection is realized in water inlet mixing, suppresses the growth of der Pilz, filters out the bacterium favourable to water process
Micelle bacterium, ensure the stable operation of reaction tank.
Pre- anoxic zone 23 is located at the rear of biological selecting area 22, sets partition wall to be separated with biological selecting area 22, partition wall top is set
High-order water hole 6 is put, is reacted in area for pulling flow type, mechanical agitator 5 is set.Mechanical agitator 5 can be submersible agitator
Can be the other types such as turbine stirrer.The reaction zone can eliminate the companion in the dissolved oxygen and water inlet of molecular state in returned sludge
Adverse effect with dissolved oxygen to anaerobic zone, realizes efficient dephosphorization.Partition wall bottom sets small-bore relief tube 7, to strengthen every
Wall construction stability and reduction wall thickness.
Reacted to be thoroughly mixed formula main reaction region 24：A areas are separated with pre- anoxic zone 23 by partition wall, only set diving propelling
Device 9, sewage enter from partition wall bottom low level water hole 8, can be used as anaerobic zone or anoxic zone during operation, B areas and C areas are respectively provided with exposure
Device of air and submersible water impeller 9, aerobic zone can be used as to be used as anaerobic zone or anoxic zone during operation.B areas and the setting in C areas
Aerator can be placed in the micro-hole aerator or surface aeration oxygen replenishing equipment of bottom of pond.High-order water hole 6 or low
Position water hole 8 can prevent the short stream of sewage, improve reaction effect.It is shown in Figure 2.
C areas set full pond blow-down pipe by inlet segment and install valve 21, and full pond blow-down pipe includes middle position blow-down pipe 19 and bottom
Portion's blow-down pipe 20, cultivation is debugged when middle position is vented when being built up for reaction tank, cut off the water maintenance for full pond when bottom is vented.
A areas in addition to being connected by water distributing area 25, are also connected with B areas by built-in pipe 16, and built-in pipe is ductile iron pipe or steel pipe,
Built-in pipe sets gate by A areas one end at it or sets valve at the middle part of built-in pipe 16, when reaction tank inversion A AO mode operations and
When the full pond of reaction tank is vented, the gate or valve are opened.
Water distributing area 25 is located between A areas, B areas and C areas, and planar profile is triangle, three sides respectively with A areas, B areas and C areas
It is adjacent, the valve or weir gate 10,11 that can connect main reaction A areas, B areas and C areas are set respectively in area, can both be distributed from A
The water inlet in area, it can also control and distribute the nitrification liquid from interior backflow canal 27.
For exhalant region 26 between B areas and C areas, planar profile is triangle, base close to the side of biological reaction pool simultaneously
Parallel with the side of the biological reaction pool, another both sides are adjacent with B areas and C areas respectively.The exhalant region 26 is symmetrically set with water distributing area 25
Put, outlet pipe 15 and at least 2 interior reflux pumps 13 are set in exhalant region 26, and are set and surmounted control valve.In exhalant region 26 also
The valve or weir gate 14 in main reaction B areas and C areas can be connected by setting respectively.It is shown in Figure 3.
Interior backflow canal 27 connects exhalant region 26 and water distributing area 25, is the channel positioned at B areas and C areas mid-board top, interior time
The bottom of stream canal 27 is communicated with hole 28.Interior backflow canal 27 is being respectively equipped with gate 18 with exhalant region 26 or the junction of water distributing area 25
With gate 12.When interior reflux pump 13 is opened, gate 12 is opened, and pumping nitrification liquid is along interior backflow canal 27 to water distributing area 25, Ran Hougen
Needed according to operating mode, by any one in water distributing area 25 to A, B, C area.
Interior backflow canal 27, which can also serve as, surmounts canal, and when the aeration and mixing plant in B areas and C areas, which are stopped transport, to be overhauled, sewage is through life
Can directly it surmount to exhalant region 26 after thing selection area 22, pre- anoxic zone 23, the processing of A areas.
Water distributing area 25 and valve in exhalant region 26 or weir gate 10,11,14 are bi-directional compression：When interior reflux pump 13 is opened,
Interior backflow canal 27 to the gate 12 of water distributing area 25 is opened；Interior backflow canal 27 is as surmounting canal in use, interior reflux pump 13 is closed, water distribution
Area 25 to B areas and C areas weir gate 11 are closed, and interior backflow canal 27 to the gate 12 of water distributing area 25 and interior backflow canal 27 are to the gate of exhalant region 26
18 all open.When B areas and C areas normal operation, interior backflow canal 27 is normally closed to the gate 18 of exhalant region 26.
Flexible joint 2 is set on reaction tank water inlet pipe 1 and outlet pipe 15, facilitates the installation of reaction tank inlet and outlet piping to be connected,
It is also prevented from reaction tank and builds up pipeline dislocation and tensile phenomenon caused by rear differential settlement.
Integral biological reaction tank provided by the invention using multi-mode operation handles the method for sewage, its operational mode
It is as follows：
1 is just putting AAO mode operations：2 kinds.
（1）AAO patterns 1 are just being put, as shown in Figure 4.
Under the pattern, main reaction A areas are microorganism is efficiently released phosphorus, main reaction B area's conducts as anaerobic zone major function
Anoxic zone major function is to complete denitrification denitrogenation, and main reaction C areas are to complete BOD as aerobic zone major function
（Biochemical Oxygen Demand, biochemical oxygen demand (BOD)）Degraded and completion nitrification, interior reflux pump 13 need one under the operating mode
Directly run and nitrification liquid is delivered to main reaction B areas by water distributing area 25, water distributing area 25 to main reaction C area's valves or weir gate 11 is closed
Close.Because water-inlet carbon source preferentially meets dephosphorization, the pattern can be used when denitrogenation is less demanding.
（2）AAO patterns 2 are just being put, as shown in Figure 5.
Under the pattern, main reaction A areas are microorganism is efficiently released phosphorus, main reaction C area's conducts as anaerobic zone major function
Anoxic zone major function is to complete denitrification denitrogenation, and main reaction B areas are to complete BOD degradeds and complete as aerobic zone major function
Nitrification, interior reflux pump 13 needs to run always under the operating mode is delivered to main reaction C areas, water distributing area by nitrification liquid by water distributing area 25
25 close to main reaction B area's valves or weir gate 11.Because water-inlet carbon source preferentially meets dephosphorization, can be used when denitrogenation is less demanding should
Pattern.
2. inversion A AO mode operations：1 kind, as shown in Figure 6.
Under the pattern, main reaction A areas are to complete denitrification denitrogenation as anoxic zone major function, and main reaction B areas are as detesting
Oxygen area major function is microorganism is efficiently released phosphorus, and main reaction B areas are to complete BOD degradeds and complete as aerobic zone major function
Nitrification, interior reflux pump 13 needs to run always under the operating mode is delivered to main reaction A areas by nitrification liquid by the weir gate of water distributing area 25, matches somebody with somebody
Pool 25 to main reaction B areas and C areas valve or weir gate 11 are closed.Because water-inlet carbon source preferentially meets denitrogenation, dephosphorization is less demanding
When can use the pattern.
3. alternate run：As shown in fig. 7, so that 8h is a cycle as an example, in 4 stages of each pattern point, enumerates 6 kinds of patterns and see
Table 1 below, suitable operating condition is selected according to the height of nitric efficiency.
The alternate run mode parameter table of table 1..
Stage I, main reaction A areas are microorganism is efficiently released phosphorus as anaerobic zone major function, and main reaction B areas are as anoxic
Area's major function is to complete denitrification denitrogenation, and main reaction C areas are to complete BOD degradeds and completion nitre as aerobic zone major function
Change, interior reflux pump 13 needs to run always under the operating mode is delivered to main reaction B areas, water distributing area 25 by nitrification liquid by water distributing area 25
Closed to main reaction C area's valves or weir gate 11.
Stage II, the anoxic zone by the stage I are that main reaction B areas switch to aerobic zone, on the one hand the waterpower of aerobic zone be stopped
Stay time i.e. processing time to extend, ensure that polyP bacteria fully absorbs phosphorus, on the other hand can make the mixed liquor into second pond
With higher dissolved oxygen, it is not in that anaerobic denitrifying causes Mud up-floating to ensure second pond.
In the stage III, it is the symmetry status in stage I, by anoxic zone and aerobic zone exchange function, improves the sludge loading of system,
I.e. main reaction C areas are to complete denitrification denitrogenation as anoxic zone major function, and main reaction B areas have been as aerobic zone major function
Degraded into BOD and complete nitrification, interior reflux pump 13 needs to run always under the operating mode and is delivered to nitrification liquid by water distributing area 25
Main reaction C areas, water distributing area 25 to main reaction B area's valves or weir gate 11 are closed.
In the stage IV, be the symmetry status in stage II, and changeover portion, but water (flow) direction is opposite with the stage II.
The method that integral biological reaction tank provided by the invention using multi-mode operation handles sewage, has intensive
Change, take up an area the advantages of small, number of devices is few, both can just put AAO（Anaerobic- anoxic- oxic）Mode operation, also can inversion A AO（Lack
Oxygen-anaerobic-aerobic）Mode operation, can also be according to water quality situation, multi-mode alternate run, alternate run pattern up to 6 kinds with
On, various pattern switching freedom and flexibility, anti impulsion load, it can be realized in the case where influent quality amplitude of variation is larger efficiently
Biological carbon and phosphorous removal.
Although present disclosure is discussed in detail by above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read the above, for the present invention's
A variety of modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (8)
1. a kind of method that integral biological reaction tank using multi-mode operation handles sewage, it is characterised in that this method makes
Biological reaction pool includes biological selecting area（22）, pre- anoxic zone（23）, main reaction region（24）, water distributing area（25）, exhalant region
（26）And interior backflow canal（27）；Described main reaction region（24）Include A areas, B areas and C areas；Described A areas can make when running
For anaerobic zone or anoxic zone, B areas and C areas can be used as anaerobic zone or anoxic zone when running as aerobic zone；
Described A areas and pre- anoxic zone（23）Separated by partition wall, partition wall bottom is provided with low level water hole（8）, sewage can be from
Middle entrance；Submersible water impeller is set in A areas（9）, aerator and submersible water impeller are respectively provided with B areas and C areas（9）, it is described
Aerator is surface aeration oxygen replenishing equipment or the micro-hole aerator for being placed in bottom of pond；Between described A areas and B areas, B areas and C areas
Separated respectively by partition wall；
Between described B areas and C areas, its partition wall top is provided with channel, connects exhalant region（26）And water distributing area（25）, the channel is
Described interior backflow canal（27）；Described interior backflow canal（27）With exhalant region（26）And water distributing area（25）Junction is respectively equipped with
Gate.
2. the method for handling sewage using the integral biological reaction tank of multi-mode operation as claimed in claim 1, its feature
It is, described biological selecting area（22）Water inlet pipe is set in reaction tank most leading portion, area（1）And mechanical agitator（5）；Institute
The water inlet pipe stated（1）Upper setting flexible joint（2）；The biological selecting area（22）Top be provided with exteenal reflux sludge canal（17）,
Adjustable checkgate is provided with canal or adjusts stream tuning valve（4）；Biological selecting area described in during operation（22）Processing time for 0.2 ~
0.5h。
3. the method for handling sewage using the integral biological reaction tank of multi-mode operation as claimed in claim 2, its feature
It is, the biological selecting area（22）Rear is provided with pre- anoxic zone（23）, the pre- anoxic zone（23）By setting partition wall and life
Thing selects area（22）Separate, partition wall top is provided with high-order water hole（6）；Described pre- anoxic zone（23）Interior setting mechanical agitator
（5）；Described exteenal reflux sludge canal（17）From the biological selecting area（22）Extend to pre- anoxic zone（23）, and with pre- anoxic
Area（23）Access at be provided with exteenal reflux sludge conditioning weir gate or adjust stream tuning valve（4）；Pre- anoxic zone described in during operation
（23）Processing time be 0.5 ~ 1h.
4. the method for handling sewage using the integral biological reaction tank of multi-mode operation as claimed in claim 1, its feature
It is, described C areas, full pond blow-down pipe is set by inlet segment at it and valve is installed, described full pond blow-down pipe includes middle position
Blow-down pipe（19）With bottom blow-down pipe（20）, middle position blow-down pipe（19）Cultivation, bottom blow-down pipe are debugged when being built up for reaction tank
（20）Cut off the water maintenance for full pond；Built-in pipe is additionally provided between the A areas and the B areas（16）And the built-in pipe can be passed through
（16）Connection, described built-in pipe（16）For ductile iron pipe or steel pipe, built-in pipe（16）Gate is set or pre- by A areas one end at it
Pipe laying（16）Middle part sets valve, pre-buried when reaction tank is vented with anoxic-anaerobic-aerobic mode operation and the full pond of reaction tank
Pipe（16）Gate or valve open.
5. the method for handling sewage using the integral biological reaction tank of multi-mode operation as claimed in claim 1, its feature
It is, described interior backflow canal（27）It can also serve as and surmount canal, when B areas and C areas equipment stop transport when overhauling, sewage is through bioselection
Area（22）, pre- anoxic zone（23）, A areas processing after can directly surmount to exhalant region（26）.
6. the method for handling sewage using the integral biological reaction tank of multi-mode operation as claimed in claim 1, its feature
It is, described water distributing area（25）Between A areas, B areas and C areas and three regions, the water distributing area can be connected（25）
Planar profile be triangle, three sides are adjacent with A areas, B areas and C areas respectively, and respectively set can be with A areas, B areas and C areas phase
The valve or weir gate of connection.
7. the method for handling sewage using the integral biological reaction tank of multi-mode operation as claimed in claim 1, its feature
It is, described exhalant region（26）Between B areas and C areas, with water distributing area（25）It is symmetrical arranged；Described exhalant region（26）It is flat
Facial contour is triangle, described exhalant region（26）Interior setting outlet pipe（15）At least 2 interior reflux pumps（13）, and set super
More control valve；Described interior reflux pump（13）During unlatching, nitrification liquid is pumped along interior backflow canal（27）To water distributing area（25）, then by
Water distributing area（25）Any one into A areas, B areas, C areas；Described interior reflux pump（13）For pump through walls or submersible axial flow pump；Institute
The outlet pipe stated（15）Upper setting flexible joint（2）.
8. the integral biological reaction tank using multi-mode operation as described in any one in claim 5 ~ 7 handles sewage
Method, it is characterised in that described interior backflow canal（27）, in interior reflux pump（13）During unlatching, interior backflow canal（27）To water distributing area
（25）Gate is opened；Flow back canal inside（27）As surmounting canal in use, interior reflux pump（13）Close, water distributing area（25）To B areas
Closed with C areas valve or weir gate, interior backflow canal（27）To water distributing area（25）Gate and interior backflow canal（27）To exhalant region（26）Lock
Door is all opened；At B areas and C areas normal operation, interior backflow canal（27）To exhalant region（26）Gate is normally closed.
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| CN201510533957.7A CN105110468B (en) | 2015-08-27 | 2015-08-27 | A kind of method that integral biological reaction tank using multi-mode operation handles sewage |
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| CN110171913A (en) * | 2019-07-05 | 2019-08-27 | 无锡市政设计研究院有限公司 | Combination membrane biological reaction pool sewage disposal system and method |
| CN114195264B (en) * | 2021-11-23 | 2024-02-23 | 中国电建集团华东勘测设计研究院有限公司 | A2/O biochemical pond structure suitable for sewage treatment plant overhauls without stopping water |
| CN114644434B (en) * | 2022-04-13 | 2022-12-06 | 同济大学 | Sewage low-carbon biological treatment system and method adaptive to water quality change |
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| JP2006088022A (en) * | 2004-09-22 | 2006-04-06 | Sumitomo Heavy Ind Ltd | Operation control method of oxidation ditch, and oxidation ditch |
| CN1329316C (en) * | 2005-12-19 | 2007-08-01 | 东南大学 | Activated sludge dephosphorizing and denitrifying method with alternated water intake from multi-spots |
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