CN108640263A - A kind of oxidation ditch and its working method with aerobic particle mud denitrification functions - Google Patents
A kind of oxidation ditch and its working method with aerobic particle mud denitrification functions Download PDFInfo
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- CN108640263A CN108640263A CN201810328115.1A CN201810328115A CN108640263A CN 108640263 A CN108640263 A CN 108640263A CN 201810328115 A CN201810328115 A CN 201810328115A CN 108640263 A CN108640263 A CN 108640263A
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- 230000003647 oxidation Effects 0.000 title claims abstract description 63
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 63
- 239000002245 particle Substances 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 37
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 29
- 239000001301 oxygen Substances 0.000 claims abstract description 29
- 239000000945 filler Substances 0.000 claims abstract description 26
- 238000005273 aeration Methods 0.000 claims abstract description 23
- 238000007654 immersion Methods 0.000 claims abstract description 8
- 238000012549 training Methods 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- 230000001105 regulatory effect Effects 0.000 claims description 26
- 238000005276 aerator Methods 0.000 claims description 19
- 239000010802 sludge Substances 0.000 claims description 16
- 230000006837 decompression Effects 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 12
- 238000010992 reflux Methods 0.000 claims description 6
- 239000008247 solid mixture Substances 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000004087 circulation Effects 0.000 claims description 3
- 230000001839 systemic circulation Effects 0.000 claims description 3
- 230000001737 promoting effect Effects 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims description 2
- 239000008187 granular material Substances 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 19
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052799 carbon Inorganic materials 0.000 abstract description 8
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 3
- 239000011574 phosphorus Substances 0.000 abstract description 3
- 244000005700 microbiome Species 0.000 description 6
- 101100269850 Caenorhabditis elegans mask-1 gene Proteins 0.000 description 5
- 239000010865 sewage Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000004176 ammonification Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 206010054949 Metaplasia Diseases 0.000 description 1
- 241000727649 Orbales Species 0.000 description 1
- 230000001651 autotrophic effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009293 extended aeration Methods 0.000 description 1
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001546 nitrifying effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1257—Oxidation ditches
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
A kind of oxidation ditch and its working method with aerobic particle mud denitrification functions.By the way that modularization aerobic particle mud generating means distributing installation in the aerobic aeration area of oxidation ditch pool, is carried out multigroup modular combination parallel operation, and be fixed on Chi Ding by fixed frame immersion by Connection Bracket according to pond type size；By modularization biological rope filler group frame distributing installation in the bioselection pond of oxidation ditch pool and aerobic area, multigroup modular combination is carried out according to pond type size by fixed frame, and pass through the Chi Ding that is fixed on of fixed frame immersion, the arc training wall concentric of aerobic area biological rope filler arrangement and oxidation ditch；System anaerobism and the aerobic functional biological total amount of oxygen is set to increase, improve and the factors such as the biological total amount, carbon and nitrogen source mode of entrance, hydraulic shear, the dissolved oxygen concentration that control each workshop section of oxidation ditch system, so that it is transformed into aerobic particle mud denitrification process, improves the efficiency of its carbon, nitrogen, phosphorus synchronization process.
Description
Technical field
The present invention relates to the method and device that a kind of aerobic sewage treatment technology is transformed into aerobic particle mud denitrification process,
Belong to aerobic particle mud denitrogenation technical field, specifically a kind of oxidation ditch system is transformed into aerobic particle mud denitrification process
Method and device.
Technical background
Oxidation ditch also known as oxidation canal, gain the name because of its structures irrigation canals and ditches in a closed ring shape.It is the one of activated sludge process
Kind modification technique, in recent years development form DE types oxidation ditch, T-type oxidation ditch, VR types oxidation ditch, PI types oxidation ditch, opel
(Orbal) oxidation ditch, Carrousel (Carrousel) oxidation ditch, single-stage Carrousel oxidation ditch, Round Sump integrated oxidation ditch
Etc. various deformations technique.The sewage and activated sludge of oxidation ditch constantly circulate in being aerated channel, and hydraulic detention time is long,
Organic loading is low, substantially belongs to extended aeration system.
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 the suitable big reactor of hydraulic shear generally use ratio of height to diameter and larger 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：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. nitrifying：Ammonia nitrogen in sewage is converted into NO under the action of nitrifier (aerobic autotrophic type microorganism)2-With
NO3-Process；
3. denitrification：NO in sewage2-And NO3-Under anoxic conditions in the work of denitrifying bacterium (facultative heterotrophic bacterium)
It is reduced to N under2Process, i.e.,：
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 oxidation ditch and its deformation technique, all it is cotton-shaped activated sludge operation, technique system
System can not provide to form aerobic particle mud (AGS) required hydraulic shear, be easy to cause load impact, and carbon source is insufficient,
The problems such as sludge bulking, so that denitrification effect is undesirable.Therefore, on existing oxidation ditch aerobic treatment process, its spy is utilized
Some working conditions improve biological total amount, carbon and nitrogen source mode of entrance, hydraulic shear, the dissolved oxygen concentration of its each workshop section
Etc. the factors, so that oxidation ditch system is transformed into aerobic particle mud denitrification process, improve its carbon, nitrogen, phosphorus synchronization process efficiency be
It is feasible.
Invention content
For the above situation, the object of the present invention is to provide a kind of oxidation ditch systems to be transformed into aerobic particle mud denitrogenation work
The method and device of skill is applied to existing oxidation ditch aerobic treatment process and is transformed, total by the biology for improving its each workshop section
The factors such as amount, carbon and nitrogen source mode of entrance, hydraulic shear, dissolved oxygen concentration make oxidation ditch system be transformed into aerobic grain dirt
Mud denitrification process improves the efficiency of its carbon, nitrogen, phosphorus synchronization process.
To achieve the goals above, present invention employs following technical schemes：
A kind of oxidation ditch with aerobic particle mud denitrification functions, the aerobic aeration area of the oxidation ditch pool are equipped with mould
Block aerobic particle mud generating means, the bioselection pond of the oxidation ditch pool and aerobic area are equipped with modularization biological rope and fill out
Material group frame,
The modularization aerobic particle mud generating means, including gas gathering mask, riser, moisture trap, return duct, 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 carried
Riser upper end tangentially enters from moisture trap middle cylinder；Moisture trap is installed above gas gathering mask, the connection of return duct upper end
In moisture trap bottom, return duct 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.
Further, further include water inlet pipe, mud return line and air inlet pipe, water inlet pipe setting water inlet control valve and surmount pipe
Into bioselection pond, aerobic area and aerobic aeration zone；Recycle control valve is respectively set in sludge reflux and pipeline enters biological choosing
Select pond, oxidation ditch inlet segment aerobic area, air inlet pipe one end is connect with air blower, the other end respectively by air volume regulating valve with it is each
Aerator connects.
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,
It promotes regulating valve to be mounted on riser, decompression control valve is mounted on relief tube, and pressure sensor is mounted on gas
At the top of separator；Dissolved oxygen monitor is respectively arranged in bioselection pond and aerobic aeration zone；Pressure sensor, pressure release are adjusted
Valve promotes regulating valve, dissolved oxygen monitor, air volume regulating valve, water inlet control valve, recycle control valve, air blower and control centre
Electrical connection is automatically controlled with realizing.
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 duct lower end is horizontal tube, and return duct lower end is equipped with rotation and mixes nozzle, revolves the jet direction for mixing nozzle
On horizontal plane.
Further, gas gathering mask is cone-shaped or truncated cone-shaped or one kind of 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, between multiple modularization aerobic particle mud generating means by Connection Bracket according to pond type
Or pot carries out parallel operation after multigroup modular combination assembly, and pass through the fixation of fixed steel structure and Connection Bracket immersion
In pond；The arc training wall concentric of aerobic area biological rope filler arrangement and oxidation ditch.
The working method of the oxidation ditch with aerobic particle mud denitrification functions,
When water inlet, 30%-80% is controlled by water inlet control valve by control centre and enters bioselection pond, 10%-70%
Into oxidation ditch inlet segment aerobic area, 10%-60% enters aerobic aeration area；
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 pattern, 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 bioselection pond controls in 0.2-0.8mg/L, aerobic aeration area
Dissolved oxygen control in 0.5-2.0mg/L, the pressure of moisture trap is in 0.05-0.45MPa；Control centre is controlled by flowing back
Valve control sludge 30%-70% flows back into bioselection pond, and 30%-70% flows back into oxidation ditch inlet segment aerobic area.
When operation, the gas of aerator release is collected by gas gathering mask, and gas, liquid, solid mixture is quickly carried 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 by return duct above gas gathering mask, and the horizonally projected jet for revolving mixed nozzle is continuous
The material rotation in pond is driven, liquid in pond, solid mixture rotation is mixed sinks to returning to below gas gathering mask, is discharged again with aerator
Gas mixing, form quick systemic circulation；Control centre promotes regulating valve by adjusting and decompression control valve controls gas-water separation
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 method and device that oxidation ditch system of the present invention is transformed into aerobic particle mud denitrification process has the following advantages：
(1) modularization aerobic particle mud generating means (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 mode
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 the utilization rate of oxygen is made to improve, and enables the system to quickly be formed
Aerobic particle mud.
(2) modularization biologic packing material group frame arrangement makes system anaerobism-and the aerobic functional biological total amount of oxygen-increase, biochemical anti-
Thrust is answered to increase, 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, enhance oxidation ditch system ammonification, nitrification and denitrification function and effect, denitrification effect is more preferable.
(4) modular combination, can the non-stop-machine fast grouping installation in oxidation ditch process.
Description of the drawings
Fig. 1：Aerobic particle mud generating means structural schematic diagram.
Fig. 2：Aerobic particle mud generating means structure top view.
Fig. 3：Modularization assembling aerobic particle mud generating means schematic diagram.
Fig. 4：Modularization assembling aerobic particle mud generating means vertical view.
Fig. 5：The horizontal layout schematic diagram of oxidation ditch
Fig. 6：Section (1-1) arrangement schematic diagram of oxidation ditch
In figure：1, gas gathering mask, 2, riser, 3, moisture trap, 4, return duct, 5, rotation mix nozzle, 6, Connection Bracket,
7, relief tube, 8, aerator, 9, wall, 10, fixed steel structure, 11, control centre, 12, promote regulating valve, 13, pressure sensor,
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, aerobic aeration area, 22, aerobic area, 23, bioselection pond, 24, biological rope fills out
Material, 25, filler support, 26, fixed frame.
Specific implementation mode
Further illustrate that implementation of the invention is not limited to the following example to seat of the present invention with reference to example, attached drawing.
Embodiment 1
A kind of oxidation ditch with aerobic particle mud denitrification functions, the aerobic aeration area 21 of the oxidation ditch pool are equipped with
Modularization aerobic particle mud generating means, the bioselection pond 23 and aerobic area 22 of the oxidation ditch pool are equipped with module metaplasia
Object rope filler group frame 16,
The modularization aerobic particle mud generating means, including gas gathering mask 1, riser 2, moisture trap 3, return duct
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 duct is connected to 3 bottom of moisture trap, and 4 lower end of return duct is arranged between 1 top surface of gas gathering mask and liquid level, pressure release
4 one end of pipe is connected to 3 top of moisture trap, and relief tube 4 is another to be connected to liquid level or less；
The modularization biological rope filler group frame 16 includes biological rope filler 24 and filler support 25, and biological rope filler 24 is outstanding
Extension is fixed on filler support 25, and 25 immersion of filler support is fixed in pond.
Further, further include water inlet pipe, mud return line and air inlet pipe, water inlet pipe setting water inlet control valve 17 and surmount
Pipe enters bioselection pond 23, aerobic area 22 and aerobic aeration zone 21；Recycle control valve 18 and pipeline is respectively set in sludge reflux
Into bioselection pond 23, oxidation ditch inlet segment aerobic area 22, air inlet pipe one end is connect with air blower 20, and the other end passes through respectively
Air volume regulating valve 19 is 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,
It promotes regulating valve 12 to be mounted on riser 2, decompression control valve 14 is mounted on relief tube 4, pressure sensor 13
At the top of moisture trap；Dissolved oxygen monitor 15 is respectively arranged in bioselection pond 23 and aerobic aeration zone 21；Pressure
Sensor 13, decompression control valve 14, promoted regulating valve 12, dissolved oxygen monitor 15, air volume regulating valve 19, water inlet control valve 17,
Recycle control valve 18, air blower 20 are electrically connected with control centre 11 and are automatically controlled with realizing.
Further, 2 upper end of the riser is horizontal tube, nozzle jet direction and the moisture trap 3 of horizontal tube
Vertical axis is vertical；4 lower end of the return duct is horizontal tube, and 4 lower end of return duct is equipped with rotation and mixes nozzle 5, revolves and mixes penetrating for nozzle 5
Stream direction is on horizontal plane.
Further, gas gathering mask 1 is cone-shaped or truncated cone-shaped or one kind of 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, between multiple modularization aerobic particle mud generating means by Connection Bracket 6 according to pond
Type or pot carry out parallel operation after multigroup modular combination assembly, and pass through fixed steel structure 10 and 6 immersion of Connection Bracket
Be fixed in pond；The arc training wall concentric of aerobic area 22 biological rope filler 24 arrangement and oxidation ditch.2 upper end of riser
Tangentially enter from 3 middle cylinder of moisture trap, specifically, 2 upper end of riser is to be connected into moisture trap 3 by horizontal tube
Portion, the jet direction of horizontal tube outlet are the secant direction of the radial section of moisture trap 3.
Embodiment 2
The working method of the oxidation ditch with aerobic particle mud denitrification functions,
When water inlet, 30%-80% is controlled by water inlet control valve 17 by control centre 11 and enters bioselection pond 23,
10%-70% enters oxidation ditch inlet segment aerobic area 22, and 10%-60% enters aerobic aeration area 21；
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 pattern 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 bioselection pond 23 is controlled in 0.2-
The dissolved oxygen of 0.8mg/L, aerobic aeration area 21 are controlled in 0.5-2.0mg/L, and the pressure of moisture trap 3 is in 0.05-
0.45MPa；Control centre 11 controls sludge 30%-70% by recycle control valve 18 and flows back into bioselection pond 23,30%-
70% flows back into oxidation ditch inlet segment aerobic area 22.
When operation, the gas that aerator 8 discharges is collected by gas gathering mask 1, and gas, liquid, solid mixture is quick by riser 2
It is lifted into moisture trap 3, the material in the nozzle jetting flow moisture trap 3 of 2 upper end horizontal tube of riser constantly revolves
Turn, recycle potential difference, the material in moisture trap 3 is back to 1 top of gas gathering mask by return duct 4, revolves the level for mixing nozzle 5
Jet stream constantly drives the material in pond to rotate, and liquid in pond, solid mixture rotation is mixed sinks to returning to 1 lower section of gas gathering mask, again with
The gas mixing that aerator 8 discharges, forms quick systemic circulation；Control centre 11 promotes regulating valve 12 by adjusting and pressure release is adjusted
Valve 14 controls the pressure of moisture trap 3 in 0.05-0.45MPa, to increase inside and outside air residence time in water and device
Fluid circulation flow velocity.
Claims (10)
1. a kind of oxidation ditch with aerobic particle mud denitrification functions, which is characterized in that the aerobic aeration of the oxidation ditch pool
Area (21) is equipped with modularization aerobic particle mud generating means, the bioselection pond (23) of the oxidation ditch pool and aerobic area
(22) modularization biological rope filler group frame (16) is installed,
The modularization aerobic particle mud generating means, 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 duct (4) upper end is connected to moisture trap (3) bottom, return duct (4) lower end
It is arranged in gas gathering mask (1) between top surface and liquid level, relief tube (4) one end is connected to moisture trap (3) top, relief tube (4)
It is another to be connected to liquid level or less；
The modularization biological rope filler group frame (16) includes biological rope filler (24) and filler support (25), biological rope filler
(24) suspension is fixed on filler support (25), and filler support (25) immersion is fixed in pond.
2. the oxidation ditch with aerobic particle mud denitrification functions as described in claim 1, which is characterized in that further include into water
Pipe, mud return line and air inlet pipe, water inlet pipe, which is arranged water inlet control valve (17) and surmounts pipe, enters bioselection pond (23) and oxygen
Area (22) and aerobic aeration zone (21)；Recycle control valve (18) is respectively set in sludge reflux and pipeline enters bioselection pond
(23), oxidation ditch inlet segment aerobic area (22), air inlet pipe one end are connect with air blower (20), and the other end is adjusted by tolerance respectively
Valve (19) is connect with each aerator (8).
3. the oxidation ditch with aerobic particle mud denitrification functions as claimed in claim 2, which is characterized in that further include being 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),
It promotes regulating valve (12) to be mounted on riser (2), decompression control valve (14) is mounted on relief tube (4), pressure sensing
Device (13) is mounted at the top of moisture trap；Dissolved oxygen monitor (15) is respectively arranged in bioselection pond (23) and aerobic aeration
Area (21)；Pressure sensor (13), decompression control valve (14) promote regulating valve (12), dissolved oxygen monitor (15), tolerance adjusting
Valve (19), water inlet control valve (17), recycle control valve (18), air blower (20) are electrically connected automatic to realize with control centre (11)
Control.
4. the oxidation ditch 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 hangs down with the vertical axis of moisture trap (3)
Directly；Return duct (4) lower end is horizontal tube, and return duct (4) lower end is equipped with rotation and mixes nozzle (5), revolves the jet stream for mixing nozzle (5)
Direction is on horizontal plane.
5. the oxidation ditch with aerobic particle mud denitrification functions as described in claims 1 to 3 any one, feature exist
In gas gathering mask (1) is cone-shaped or truncated cone-shaped or one kind of prismoid shaped, and the bigger diameter end of gas gathering mask (1) is under, and miner diameter end is upper.
6. the oxidation ditch 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 oxidation ditch 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 oxidation ditch 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 means
Parallel operation after the assembly of multigroup modular combination, and being fixed on by fixed steel structure (10) and Connection Bracket (6) immersion
In pond；Aerobic area (22) biological rope filler (24) arranges the arc training wall concentric with oxidation ditch.
9. the working method of the oxidation ditch with aerobic particle mud denitrification functions as described in claims 1 to 3 any one,
It is characterized in that,
When water inlet, 30%-80% is controlled by water inlet control valve (17) by control centre (11) and enters bioselection pond (23),
10%-70% enters oxidation ditch inlet segment aerobic area (22), and 10%-60% enters aerobic aeration area (21)；
Control centre (11) adjusts each group air volume regulating valve (19) and air blast according to dissolved oxygen monitor (15) feedback data respectively
The start and stop of machine (20) work, and air blower (20) work of aeration phase is the pattern that works intermittently or continuously, control centre (11) root
It is adjusted according to the pressure of moisture trap (3) and promotes regulating valve (12), the size of decompression control valve (14), bioselection pond (23)
Dissolved oxygen control is controlled in 0.2-0.8mg/L, the dissolved oxygen of aerobic aeration area (21) in 0.5-2.0mg/L, moisture trap (3)
Pressure in 0.05-0.45MPa；Control centre (11) controls sludge 30%-70% by recycle control valve (18) and flows back into
Bioselection pond (23), 30%-70% flow back into oxidation ditch inlet segment aerobic area (22).
10. the modularization of the oxidation ditch with aerobic particle mud denitrification functions as described in claims 1 to 3 any one is good
The working method of oxygen granule sludge generating means, which is characterized in that
When operation, the gas of aerator (8) release is collected by gas gathering mask (1), and gas, liquid, solid mixture is fast by riser (2)
Speed is lifted into moisture trap (3), the object in the nozzle jetting flow moisture trap (3) of riser (2) upper end horizontal tube
Material constantly rotation, recycles potential difference, and the material in moisture trap (3) is back to by return duct (4) above gas gathering mask (1),
The horizonally projected jet that rotation mixes nozzle (5) constantly drives the material in pond to rotate, and liquid, solid mixture, which revolve to mix, in pond sinks to returning to collection
Below gas hood (1), again with the gas mixing of aerator (8) release, quick systemic circulation is formed；Control centre (11) passes through adjusting
The pressure for promoting regulating valve (12) and decompression control valve (14) control moisture trap (3), to increase the stop of air in water
Fluid circulation flow velocity inside and outside time and device.
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