CN208292737U - A kind of AAO system with aerobic particle mud denitrification functions - Google Patents
A kind of AAO system with aerobic particle mud denitrification functions Download PDFInfo
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- CN208292737U CN208292737U CN201820514521.2U CN201820514521U CN208292737U CN 208292737 U CN208292737 U CN 208292737U CN 201820514521 U CN201820514521 U CN 201820514521U CN 208292737 U CN208292737 U CN 208292737U
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
A kind of AAO system with aerobic particle mud denitrification functions, the system by by modularization aerobic particle mud generating device distributing installation in the pond O, multiple groups modular combination parallel operation is carried out according to pond type size by Connection Bracket, and Chi Ding is fixed on by fixed frame immersion；By modularization biological rope filler group frame distributing installation in the pond anaerobism A and the simultaneous pond oxygen A, multiple groups modular combination is carried out according to pond type size by fixed frame, and Chi Ding is fixed on by fixed frame immersion.The utility model uses distributed multipoint water feeding, sludge reflux multiparty control improves system carbon and nitrogen source mode of entrance, increases the variation of systemic concentration gradient, the function and effect of AAO technique or inverted AAO process ammonification, nitrification and denitrification are enhanced, denitrification effect is more preferable；Modular combination fast grouping installation can carry out the system reform in AAO technique or inverted AAO process.
Description
Technical field
The utility model relates to a kind of aerobic sewage treatment technology be transformed into aerobic particle mud denitrification process method and
Device belongs to aerobic particle mud denitrogenation technical field, specifically a kind of AAO system with aerobic particle mud denitrification functions
System.
Technical background
AAO method " the aerobic O method of anaerobism A- anoxic A- " is also known as A2O method (Anaerobic-Anoxic-Oxic) is a kind of common
Sewage treatment process.AAO technique realizes that Anammox, the pond O inner circulating reflux are simultaneous by the secondary settling tank sludge reflux pond anaerobism A
Biological denitrification denitrogenation is realized in the pond oxygen A, and biological nitration is realized in the pond O, to achieve the purpose that denitrogenation.The inversion A AO of AAO technological evolution
Technique (anoxic-anaerobic-aerobic process), be by and the pond oxygen A it is preposition in process system head end, preferentially to meet denitrifying carbon source need
It asks.
Aerobic particle mud (Aerobic Granular Sludge, AGS) is formed by microorganism self-cohesion action
Granulated activated sludge, compared with ordinary activated sludge, it, which has, is not susceptible to sludge bulking, strong shock resistance, can bear
High organic loading, the features such as integrating microorganism of different nature (aerobic and oxygen and anaerobe).The self-solidifying of microorganism
Collecting process is a complicated physics, chemistry and bioprocess, is granulated by a variety of such environmental effects, is oneself of microorganism
Cohesion provides suitable hydraulic shear and generallys use the big reactor of ratio of height to diameter and biggish aeration quantity, reactor too it is high again
Cause aeration energy consumption increase, this restrict aerobic particle mud (AGS) technology Practical Project application.
Biological treatment denitrification process generally comprises three ammonification, nitrification and denitrification processes.
1. ammonification: the itrogenous organic substance in sewage, by aerobic or anaerobism heterotroph microorganism oxygen in biological treatment process
Change the process for being decomposed into ammonia nitrogen；
2. nitrification: the ammonia nitrogen in sewage is converted into NO under the action of nitrifier (aerobic autotrophic type microorganism)2-With
NO3-Process；
3. denitrification: the NO in sewage2-And NO3-Under anoxic conditions in the work of denitrifying bacterium (facultative heterotrophic bacterium)
N is reduced under2Process, it may be assumed that
NO2-+3H+(electronics donor-organic matter) --- 1/2N2+H2O+OH-
NO3-+5H+(electronics donor-organic matter) --- 1/2N2+2H2O+OH-
And the aerobic treatment processes such as existing AAO, inversion A AO and its deformation technique, it is all cotton-shaped activated sludge operation, work
Process system can not provide hydraulic shear required for forming aerobic particle mud (AGS), be easy to cause load impact, carbon source is not
The problems such as foot, sludge bulking, so that denitrification effect is undesirable.Therefore, on existing AAO, inversion A AO and its deformation technique,
Using its distinctive working condition, improve biological total amount, carbon and the nitrogen source mode of entrance of its each workshop section, hydraulic shear, molten
The factors such as oxygen concentration are solved, so that existing AAO, inversion A AO and its anamorphotic system is transformed into aerobic particle mud denitrification process, improves it
Carbon, nitrogen, phosphorus synchronization process efficiency be feasible.
Utility model content
For above situation, the purpose of the utility model is to provide a kind of AAO system reforms into aerobic particle mud denitrogenation
The method and device of technique, it is each by improving it applied to the transformation of existing AAO aerobic treatment process or inverted AAO process
The factors such as the biological total amount of a workshop section, carbon and nitrogen source mode of entrance, hydraulic shear, dissolved oxygen concentration, make AAO technique or inversion
AAO technological transformation at aerobic particle mud denitrification process, improve its carbon, nitrogen, phosphorus synchronization process efficiency.
To achieve the goals above, the utility model uses following technical scheme:
A kind of AAO system or inversion A AO system with aerobic particle mud denitrification functions, the AAO system or inversion
The pond anaerobism A of AAO system and the simultaneous pond oxygen A are equipped with modularization aerobic particle mud generating device, the AAO system or inversion
The pond O of AAO system is equipped with modularization biological rope filler group frame,
The modularization aerobic particle mud generating device, including gas gathering mask, riser, moisture trap, return pipe, company
Fixed frame, relief tube and aerator are connect, gas gathering mask is mounted on above aerator, and riser lower end is connected at the top of gas gathering mask, is mentioned
Riser upper end tangentially enters from moisture trap middle cylinder；Moisture trap is installed above gas gathering mask, the connection of return pipe upper end
In moisture trap bottom, return pipe lower end is arranged between gas gathering mask top surface and liquid level, and relief tube one end is connected to air water point
From device top, relief tube is another to be connected to liquid level or less；
The modularization biological rope filler group frame includes biological rope filler and filler support, and the suspension of biological rope filler is fixed on
On filler support, filler support immersion is fixed in pond.
It further, further include water inlet pipe, mud return line and air inlet pipe, the filler bottom installation diving in the pond anaerobism A pushes away
Flow device；Water inlet pipe setting water inlet control valve enters the pond anaerobism A and the pond oxygen A, the pond O with pipe is surmounted；Reflux pump and two is installed and is sunk in the pond O
Mud return line connection in pond is respectively set recycle control valve and enters the pond anaerobism A and the pond oxygen A, the pond O；Air inlet pipe one end and air blower
Connection, the other end pass through air volume regulating valve respectively and connect with each aerator.
It further, further include promoting regulating valve, decompression control valve, pressure sensor, dissolved oxygen monitor, tolerance to adjust
Valve, water inlet control valve, recycle control valve and control centre promote regulating valve and are mounted on riser, and decompression control valve is mounted on
On relief tube, pressure sensor is mounted at the top of moisture trap；Dissolved oxygen monitor is respectively arranged in the simultaneous pond oxygen A and the pond O；It mentions
Rise regulating valve, decompression control valve, air volume regulating valve, pressure sensor, submersible water impeller, reflux pump, water inlet control valve, reflux control
Valve processed, air blower, dissolved oxygen monitor are electrically connected to realize and automatically control with control centre.
Further, the riser upper end is horizontal tube, the nozzle jet direction of horizontal tube and erecting for moisture trap
Straight axis is vertical；The return pipe lower end is horizontal tube, and return pipe lower end is equipped with the mixed spray head of rotation, revolves the jet direction of mixed spray head
On horizontal plane.
Further, gas gathering mask is one kind of cone-shaped or truncated cone-shaped or prismoid shaped, and the bigger diameter end of gas gathering mask is under, path
End is upper.
Further, moisture trap bottom is taper.
Further, the distance between gas gathering mask bottom and aerator be-centimetre.
Further, pass through Connection Bracket between multiple modularization aerobic particle mud generating devices according to pond type
Or pot carries out parallel operation after the assembly of multiple groups modular combination, and passes through the fixation of fixed steel structure and Connection Bracket immersion
In pond.
The working method of the AAO system or inversion A AO system with aerobic particle mud denitrification functions,
Water inlet controls 30%-80% by water inlet control valve by control centre and enters the pond anaerobism A, and 10%-70% enters simultaneous
The pond oxygen A, 10%-60% enter the pond O；
Control centre adjusts the start and stop of each group air volume regulating valve and air blower according to dissolved oxygen monitor feedback data respectively
Work, the air blower work of aeration phase is works intermittently or continuously mode, and control centre is according to the pressure tune of moisture trap
Section promotes regulating valve, the size of decompression control valve, and the dissolved oxygen in the pond oxygen A is controlled in 0.2-0.8mg/L, the dissolved oxygen control in the pond O
System is in 0.5-2.0mg/L, and the pressure of moisture trap is in 0.05-0.45MPa；Control centre passes through recycle control valve control two
The sludge 30%-70% in heavy pond flows back into the pond anaerobism A, and 30%-70% is flowed back into and the pond oxygen A, and 10%-30% flows back into the pond O,
The muddy water in the pond O is flowed back 50-70% into the pond anaerobism A by the 10-50% of inflow by reflux pump 25,30-50% into and the pond oxygen A.
When operation, the gas of aerator release is collected by gas gathering mask, and gas, liquid, solid mixture is quickly mentioned by riser
It rising and enters moisture trap, the material in the nozzle jetting flow moisture trap of riser upper end horizontal tube constantly rotates, then
Using potential difference, the material in moisture trap is back to above gas gathering mask by return pipe, and the horizonally projected jet for revolving mixed spray head is continuous
The material rotation in pond is driven, liquid, the mixed sinking of solid mixture rotation return to below gas gathering mask in pond, discharge again with aerator
Gas mixing, form quick systemic circulation；Control centre promotes regulating valve and decompression control valve control gas-water separation by adjusting
The pressure of device is in 0.05-0.45MPa, to increase the fluid circulation flow velocity inside and outside air residence time in water and device.
The utility model AAO system reform has the advantage that at the method and device of aerobic particle mud denitrification process
(1) modularization aerobic particle mud generating device (MAGSG) smart structural design, simple, hydraulic shear is big, oxygen
Utilization rate improve.It is transformed for existing oxidation ditch and its deformation technique, utilizes the density pressure difference generated under aeration operating condition
Formation air lift kinetic energy is recycled to let out to spray to be formed to revolve under potential difference and pressure official post fluid and be mixed, improves fluid velocity, enhance water
Power shearing force improves air path in water and residence time, and improves the utilization rate of oxygen, enables the system to quickly be formed
Aerobic particle mud.
(2) modularization biologic packing material group frame arrangement makes the functional biological total amount in the pond system anaerobism A-and the pond oxygen A-pond aerobic O
Increase, biochemical reaction thrust increases, impact resistance enhancing.
(3) distributed multipoint water feeding, sludge reflux multiparty control improve system carbon and nitrogen source mode of entrance, increase system
The variation for concentration gradient of uniting, enhances the function and effect of AAO technique or inverted AAO process ammonification, nitrification and denitrification, denitrogenation
Effect is more preferable.
(4) modular combination, can the non-stop-machine fast grouping installation in AAO technique or inverted AAO process.
Detailed description of the invention
Fig. 1: aerobic particle mud generating device structural schematic diagram.
Fig. 2: aerobic particle mud generating device structure top view.
Fig. 3: modularization assembling aerobic particle mud generating device schematic diagram.
Fig. 4: modularization assembling aerobic particle mud generating device top view.
Fig. 5: AAO System planes arrangement schematic diagram
Fig. 6: AAO system section (1-1) arrangement schematic diagram
Fig. 7: inversion A AO System planes arrangement schematic diagram
Fig. 8: inversion A AO system section (2-2) arrangement schematic diagram
In figure: 1, gas gathering mask, 2, riser, 3, moisture trap, 4, return pipe, 5, the mixed spray head of rotation, 6, Connection Bracket,
7, relief tube, 8, aerator, 9, wall, 10, fixed steel structure, 11, control centre, 12, promotion regulating valve, 13, pressure sensing
Device, 14, decompression control valve, 15, dissolved oxygen monitor, 16, modularization biologic packing material group frame, 17, water inlet control valve, 18, reflux
Control valve, 19, air volume regulating valve, 20, air blower, 21, the pond anaerobism A, 22, the simultaneous pond oxygen A, 23, the pond O, 24, submersible water impeller,
25, reflux pump, 26, biological rope filler, 27, filler support, 28, fixed frame.
Specific embodiment
The implementation of the utility model, which is not limited to following, to be further illustrated to the utility model seat below with reference to example, attached drawing
Embodiment.
Embodiment 1
A kind of AAO system or inversion A AO system with aerobic particle mud denitrification functions, the AAO system or inversion
The pond anaerobism A 21 of AAO system and and the pond oxygen A 22 modularization aerobic particle mud generating device is installed, the AAO system or
The pond O 23 of inversion A AO system is equipped with modularization biological rope filler group frame 16,
The modularization aerobic particle mud generating device, including gas gathering mask 1, riser 2, moisture trap 3, return pipe
4, Connection Bracket 6, relief tube 7 and aerator 8, gas gathering mask 1 are mounted on 8 top of aerator, and 2 lower end of riser is connected to gas collection
1 top of cover, 2 upper end of riser tangentially enters from 3 middle cylinder of moisture trap；Moisture trap 3 installs 1 top of gas gathering mask,
4 upper end of return pipe is connected to 3 bottom of moisture trap, and 4 lower end of return pipe is arranged between 1 top surface of gas gathering mask and liquid level, pressure release
7 one end of pipe is connected to 3 top of moisture trap, and relief tube 7 is another to be connected to liquid level or less；
The modularization biological rope filler group frame 16 includes biological rope filler 26 and filler support 27, and biological rope filler 26 is outstanding
Extension is fixed on filler support 27, and 27 immersion of filler support is fixed in pond.
It further, further include water inlet pipe, mud return line and air inlet pipe, diving is installed in the filler bottom in the pond anaerobism A 21
Impeller 24；Water inlet pipe setting water inlet control valve 17 enters the pond anaerobism A 21 and the pond oxygen A 22, the pond O 23 with pipe is surmounted；Pacify in the pond O 23
Dress reflux pump 25 connect with secondary settling tank mud return line, be respectively set the entrance of recycle control valve 18 pond anaerobism A 21, the simultaneous pond oxygen A 22,
The pond O 23；Air inlet pipe one end is connect with air blower 20, and the other end passes through air volume regulating valve 19 respectively and connect with each aerator 8.
Further, further include promoted regulating valve 12, decompression control valve 14, pressure sensor 13, dissolved oxygen monitor 15,
Air volume regulating valve 19, water inlet control valve 17, recycle control valve 18 and control centre 11 promote regulating valve 12 and are mounted on riser 2
On, decompression control valve 14 is mounted on relief tube 7, and pressure sensor 13 is mounted at the top of moisture trap；Dissolved oxygen monitor
15 are respectively arranged in the simultaneous pond oxygen A 22 and the pond O 23；Promote regulating valve 12, decompression control valve 14, air volume regulating valve 19, pressure sensing
Device 13, submersible water impeller 24, reflux pump 25, water inlet control valve 17, recycle control valve 18, air blower 20, dissolved oxygen monitor 15
It is electrically connected with control centre 11 to realize and automatically control.
Further, 2 upper end of riser is horizontal tube, nozzle jet direction and the moisture trap 3 of horizontal tube
Vertical axis is vertical；4 lower end of return pipe is horizontal tube, and 4 lower end of return pipe is equipped with the mixed spray head 5 of rotation, revolves penetrating for mixed spray head 5
Stream direction is on horizontal plane.
Further, gas gathering mask 1 is one kind of cone-shaped or truncated cone-shaped or prismoid shaped, and the bigger diameter end of gas gathering mask 1 is small under
Diameter end is upper.
Further, 3 bottom of moisture trap is taper.
Further, the distance between 1 bottom of gas gathering mask and aerator 8 are 5-50 centimetres.
Further, pass through Connection Bracket 6 between multiple modularization aerobic particle mud generating devices according to pond
Type or pot carry out parallel operation after the assembly of multiple groups modular combination, and pass through fixed steel structure 10 and 6 immersion of Connection Bracket
Be fixed in pond.2 upper end of riser tangentially enters from 3 middle cylinder of moisture trap, specifically, 2 upper end of riser is
It is connected into inside moisture trap 3 by horizontal tube, the jet direction of horizontal tube outlet is cutting for the radial section of moisture trap 3
Line direction.
Embodiment 2
The working method of the AAO system or inversion A AO system with aerobic particle mud denitrification functions,
Water inlet controls 30%-80% by water inlet control valve 17 by control centre 11 and enters the pond anaerobism A 21,10%-70%
Into the simultaneous pond oxygen A 22,10%-60% enters the pond O 23；
Control centre 11 adjusts each group air volume regulating valve 19 and air blower according to 15 feedback data of dissolved oxygen monitor respectively
The work of air blower 20 of 20 start and stop work, aeration phase is the mode that works intermittently or continuously, and control centre 11 is according to air water point
Pressure from device 3, which is adjusted, promotes regulating valve 12, the size of decompression control valve 14, and the dissolved oxygen in the pond oxygen A 22 is controlled in 0.2-
The dissolved oxygen in the pond 0.8mg/L, O 23 is controlled in 0.5-2.0mg/L, and the pressure of moisture trap 3 is in 0.05-0.45MPa；Control
Center 11 flows back into the pond anaerobism A 21 by the sludge 30%-70% that recycle control valve 18 controls secondary settling tank, and 30%-70% is returned
It flows into and the pond oxygen A 22,10%-30% flows back into the pond O 23, reflux pump 25 returns the muddy water in the pond O 23 by the 10-50% of inflow
Flow 50-70% into the pond anaerobism A 21,30-50% into and the pond oxygen A 22.
The modularization aerobic grain of the AAO system or inversion A AO system with aerobic particle mud denitrification functions
The working method of sludge generating device, when operation, the gas that aerator 8 discharges is collected by gas gathering mask 1, and gas, liquid, solid mixture is logical
It crosses riser 2 and moisture trap 3, the nozzle jetting flow moisture trap 3 of 2 upper end horizontal tube of riser is entered by fast lifting
Interior material constantly rotates, and recycles potential difference, and the material in moisture trap 3 is back to 1 top of gas gathering mask by return pipe 4,
The horizonally projected jet for revolving mixed spray head 5 constantly drives the material in pond to rotate, and liquid, the mixed sinking of solid mixture rotation return to gas collection in pond
1 lower section of cover, the gas mixing discharged again with aerator 8 form quick systemic circulation；Control centre 11 is adjusted by adjusting to be promoted
Valve 12 and decompression control valve 14 control the pressure of moisture trap 3 in 0.05-0.45MPa, to increase the stop of air in water
Fluid circulation flow velocity inside and outside time and device.
Claims (8)
1. a kind of AAO system with aerobic particle mud denitrification functions, which is characterized in that the AAO system or inversion A AO system
The pond anaerobism A (21) of system and and the pond oxygen A (22) modularization aerobic particle mud generating device is installed, the AAO system or fall
The pond O (23) for setting AAO system is equipped with modularization biological rope filler group frame (16),
The modularization aerobic particle mud generating device, including gas gathering mask (1), riser (2), moisture trap (3), reflux
(4), Connection Bracket (6), relief tube (7) and aerator (8) are managed, gas gathering mask (1) is mounted on above aerator (8), riser
(2) lower end is connected at the top of gas gathering mask (1), and riser (2) upper end tangentially enters from moisture trap (3) middle cylinder；Air water
Separator (3) is installed above gas gathering mask (1), and return pipe (4) upper end is connected to moisture trap (3) bottom, return pipe (4) lower end
It is arranged in gas gathering mask (1) between top surface and liquid level, relief tube (7) one end is connected to moisture trap (3) top, relief tube (7)
It is another to be connected to liquid level or less；
The modularization biological rope filler group frame (16) includes biological rope filler (26) and filler support (27), biological rope filler
(26) suspension is fixed on filler support (27), and filler support (27) immersion is fixed in pond.
2. as described in claim 1 with aerobic particle mud denitrification functions AAO system, which is characterized in that further include into
The filler bottom of water pipe, mud return line and air inlet pipe, the pond anaerobism A (21) is installed by submersible water impeller (24)；Water inlet pipe be arranged into
Water control valve (17) and surmounts pipe and enter the pond anaerobism A (21), and the pond oxygen A (22), the pond O (23)；The pond O (23) is installed by reflux pump (25)
It is connect with secondary settling tank mud return line, recycle control valve (18) is respectively set into the pond anaerobism A (21) and the pond oxygen A (22), the pond O
(23)；Air inlet pipe one end is connect with air blower (20), and the other end passes through air volume regulating valve (19) and each aerator (8) even respectively
It connects.
3. as claimed in claim 2 with the AAO system of aerobic particle mud denitrification functions, which is characterized in that further include mentioning
Rise regulating valve (12), decompression control valve (14), pressure sensor (13), dissolved oxygen monitor (15), air volume regulating valve (19), into
Water control valve (17), recycle control valve (18) and control centre (11) promote regulating valve (12) and are mounted on riser (2), let out
Pressure regulating valve (14) is mounted on relief tube (7), and pressure sensor (13) is mounted at the top of moisture trap；Dissolved oxygen monitor
(15) the simultaneous pond oxygen A (22) and the pond O (23) are respectively arranged in；Promote regulating valve (12), decompression control valve (14), air volume regulating valve
(19), pressure sensor (13), submersible water impeller (24), reflux pump (25), water inlet control valve (17), recycle control valve (18),
Air blower (20), dissolved oxygen monitor (15) are electrically connected to realize and automatically control with control centre (11).
4. the AAO system with aerobic particle mud denitrification functions as described in claims 1 to 3 any one, feature exist
In riser (2) upper end is horizontal tube, and the nozzle jet direction of horizontal tube and the vertical axis of moisture trap (3) hang down
Directly；Return pipe (4) lower end is horizontal tube, and return pipe (4) lower end is equipped with rotation and mixes spray head (5), revolves penetrating for mixed spray head (5)
Stream direction is on horizontal plane.
5. the AAO system with aerobic particle mud denitrification functions as described in claims 1 to 3 any one, feature exist
In gas gathering mask (1) is one kind of cone-shaped or truncated cone-shaped or prismoid shaped, and the bigger diameter end of gas gathering mask (1) is under, and miner diameter end is upper.
6. the AAO system with aerobic particle mud denitrification functions as described in claims 1 to 3 any one, feature exist
In moisture trap (3) bottom is taper.
7. the AAO system with aerobic particle mud denitrification functions as described in claims 1 to 3 any one, feature exist
In the distance between gas gathering mask (1) bottom and aerator (8) are 5-50 centimetres.
8. the AAO system with aerobic particle mud denitrification functions as described in claims 1 to 3 any one, feature exist
In by Connection Bracket (6) according to pond type or pot progress between multiple modularization aerobic particle mud generating devices
Parallel operation after the assembly of multiple groups modular combination, and being fixed on by fixed steel structure (10) and Connection Bracket (6) immersion
In pond.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108439597A (en) * | 2018-04-12 | 2018-08-24 | 南宁绿智环保科技有限公司 | A kind of AAO systems and its working method with aerobic particle mud denitrification functions |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108439597A (en) * | 2018-04-12 | 2018-08-24 | 南宁绿智环保科技有限公司 | A kind of AAO systems and its working method with aerobic particle mud denitrification functions |
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