CN107244731A - Effectively control the reactor assembly and method of aerobic particle mud system dissolved oxygen - Google Patents
Effectively control the reactor assembly and method of aerobic particle mud system dissolved oxygen Download PDFInfo
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- CN107244731A CN107244731A CN201710571621.9A CN201710571621A CN107244731A CN 107244731 A CN107244731 A CN 107244731A CN 201710571621 A CN201710571621 A CN 201710571621A CN 107244731 A CN107244731 A CN 107244731A
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 239000001301 oxygen Substances 0.000 title claims abstract description 50
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 50
- 239000002245 particle Substances 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000005273 aeration Methods 0.000 claims abstract description 49
- 239000007789 gas Substances 0.000 claims abstract description 26
- 239000010802 sludge Substances 0.000 claims abstract description 25
- 210000000529 third trochanter Anatomy 0.000 claims abstract description 10
- 239000008187 granular material Substances 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 41
- 239000007788 liquid Substances 0.000 claims description 12
- 239000000523 sample Substances 0.000 claims description 10
- 239000010865 sewage Substances 0.000 claims description 10
- 238000012544 monitoring process Methods 0.000 claims description 9
- 230000002572 peristaltic effect Effects 0.000 claims description 8
- 239000002351 wastewater Substances 0.000 claims description 7
- 238000004062 sedimentation Methods 0.000 claims description 4
- 238000011081 inoculation Methods 0.000 claims description 3
- 239000012188 paraffin wax Substances 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 claims description 2
- 244000005700 microbiome Species 0.000 abstract description 6
- 230000007774 longterm Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000001580 bacterial effect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000605059 Bacteroidetes Species 0.000 description 1
- 229920005479 Lucite® Polymers 0.000 description 1
- 241000192142 Proteobacteria Species 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- -1 reactor body Chemical compound 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- 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
- C02F3/1263—Sequencing batch reactors [SBR]
-
- 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
- C02F3/22—Activated sludge processes using circulation pipes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/004—Apparatus and plants for the biological treatment of water, waste water or sewage comprising a selector reactor for promoting floc-forming or other bacteria
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/005—Processes using a programmable logic controller [PLC]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/22—O2
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/38—Gas flow rate
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/42—Liquid level
-
- 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)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Activated Sludge Processes (AREA)
Abstract
The invention discloses a kind of reactor assembly of effective control aerobic particle mud system dissolved oxygen and method.Two-way discharge duct is connected on the blind flange of the device reaction device body top, wherein a route third trochanter flowmeter control is directly discharged into air, another road is back to the air inlet of the second spinner flowmeter by air-introduced machine.The present invention controls the method for operation of dissolved oxygen using gas backstreaming, overcome caused by high-strength aeration that anaerobism, anoxic zone are reduced inside granule sludge under the conditions of high-solubility oxygen, the problem of amphimicrobe ecological niche is not enough, effective enrichment of the functional microorganisms such as denitrogenation dephosphorizing can be promoted, realize that reactor is run steadily in the long term.
Description
Technical field
The present invention relates to a kind of reactor assembly of effective control aerobic particle mud system dissolved oxygen and method, belong to useless
Aquatic organism processing technology field.
Background technology
Aerobic particle mud is the microorganism self-retaining form spontaneously formed under aerobic condition, with excellent settleability
Energy, higher biological retention volume, relatively low sludge yield and anti-Organic loading shock performance, have compensated for traditional activated dirt
The deficiency of mud method.First aerobic particle mud seminar in Munich, Germany in 2005 is made to it to be explicitly defined,
Aerobic particle mud is thought as a kind of microbial aggregate, and its particle does not condense with the reduction of hydraulic shear and has phase
Sinking speed more faster than floc sludge simultaneously thinks that Aerobic Granular Sludge Technology is a new skill of promising sewage disposal
Art.Hereafter, study hotspot is concentrated mainly on formation mechenism, condition of culture and the major influence factors of aerobic particle mud and added
Its engineering application of speed.Research shows, aerobic particle mud can form anaerobism-lack from inside to outside due to the resistance to mass tranfer of dissolved oxygen
Oxygen-aerobic zone, suitable ecological niche is provided for a variety of functional microorganisms, acts on the hydraulic shear of aerobic particle mud system
Main to be provided by being aerated, larger hydraulic shear is to realize aerobic sludge from the cotton-shaped essential condition converted to graininess,
And can guarantee that aerobic granular sludge reactor is run steadily in the long term.
However, being used at present to provide enough hydraulic shear with promoting granular sludge and stably sbr reactor device more
High surfaces gas velocity to form high intensity particle to promote the further reinforcement sludge of secretion of hydrophobicity Extracellular polymers to assemble, higher
The maintenance of surface gas velocity is needed compared with high-strength aeration, and this causes aeration phase energy waste and because system caused by high-strength aeration is high
Dissolved oxygen concentration makes anoxic inside aerobic particle mud, anaerobic zone are relative to reduce, and is unfavorable for the amphimicrobian work(such as denitrification, dephosphorization
Can microorganism aggregation and play a role, reduce system contaminant-removal properties.Therefore, protected while control system dissolved oxygen
The enough hydraulic shears of card improve anoxic inside granule sludge on the premise of aerobic particle mud Stability Analysis of Structures is maintained, detested
Oxygen area, withholds a large amount of denitrogenation dephosphorizing functional floras, has important actual meaning to system high-efficient denitrification and dephosphorization, reduction operation energy consumption
Justice.
The content of the invention
It is molten in control system the present invention relates to a kind of reactor assembly of effective control aerobic particle mud system dissolved oxygen
Ensure enough hydraulic shears while solution oxygen, realize that aerobic particle mud Stability Analysis of Structures, pollutant are efficiently removed and reduced
Operation energy consumption.
The technical scheme that the present invention is specifically used is as follows：
The effectively reactor assembly of control aerobic particle mud system dissolved oxygen, including reactor body, inlet unit, exposure
Gas unit and water unit；
Described reactor body side is provided with water inlet and delivery port, and top is sealed by blind flange；Reactor master
Internal liquid level is connected to the dissolved oxygen probe of dissolved oxygen online monitoring instrument to have；
Described aeration unit includes air pump, the first rotor flowmeter, the second spinner flowmeter, third trochanter flowmeter
With porous aeration head, porous aeration head be located at reactor body bottom, and by tracheae be sequentially connected with the second spinner flowmeter,
Two-way discharge duct is connected on blind flange at the top of the first rotor flowmeter and air pump, reactor body, wherein a route the
Three-rotor flow meter control is directly discharged into air, and another road is back to the air inlet of the second spinner flowmeter by air-introduced machine；
Described inlet unit and water unit is respectively used to the water inlet and water outlet of reactor body.
Preferably, described inlet unit, including the liquid being sequentially connected with the water inlet on reactor body top stops
Valve and immersible pump are returned, immersible pump is arranged at into bucket.
Preferably, described water unit, including peristaltic pump, with going out bucket, peristaltic pump two ends are connected by pipeline respectively
Delivery port and go out bucket.
Preferably, described reactor body side is from top to bottom provided with several delivery ports at different height.
Preferably, being additionally provided with the liquid level meter probes for induction level height in described reactor body.
Preferably, control unit is additionally provided with, for carrying out central control.
Further, described control unit uses PLC.
Preferably, all pipelines enter the tapping of reactor body through blind flange, sealed using paraffin.
It is dirty another object of the present invention is to provide a kind of culture aerobic grain of the device using in any of the above-described scheme
The method of mud, be specially：Waste water is handled with SBR techniques in reactor body, first seed sludge, inoculation before operation
MLSS is 4-6g/L；Enter water-based for town sewage, inlet COD concentration is to remain organic in 300-800mg/L, running
Load 1.5-3.0kg CODm-3·d-1；Using 4-8 ratio of height to diameter and 30%-70% draining ratio；The SBR cycles of operation are 4-
6h, is divided into water, aeration, precipitation, water outlet four-stage, the wherein sedimentation time is 5-60min；Aeration time is 3-5h, is being exposed
During gas, by controlling the regulation of third trochanter flowmeter to be directly discharged into the air capacity of air, pass through part in reactor
The gas of aeration is back in porous aeration head again, is controlled while providing enough hydraulic shears for granule sludge system
Dissolved oxygen concentration.
Beneficial effects of the present invention：
Because the present invention controls the method for operation of dissolved oxygen using gas backstreaming, high dissolving caused by high-strength aeration is overcome
Anaerobism, anoxic zone are reduced inside granule sludge under the conditions of oxygen, and the problem of amphimicrobe ecological niche is not enough can promote denitrogenation
Effective enrichment of the functional microorganisms such as dephosphorization, realizes that reactor is run steadily in the long term.
Due to controlling the method for operation of dissolved oxygen using gas backstreaming, hydraulic shear is being ensured compared to conventional SBR method
Aeration quantity can be effectively reduced simultaneously, the further energy-saving of aerobic particle mud technique is realized.
Brief description of the drawings
Fig. 1 is the structural representation of the effectively reactor assembly of control aerobic particle mud system dissolved oxygen；
Position of opening schematic diagram on blind flange in Fig. 2 present invention.
Wherein：It is air pump 1, the first rotor flowmeter 2.1, the second spinner flowmeter 2.2, third trochanter flowmeter 2.3, micro-
Hole aeration head 2.4, control unit 3, immersible pump 4, enter bucket 5, check-valves 6, liquid level meter probes 7, peristaltic pump 8, go out bucket 9, go out
The mouth of a river 10, dissolved oxygen probe 11, dissolved oxygen online monitoring instrument 12, gas re-entry hole 13, air inlet 14, exhaust outlet 15, monitoring
Hole 16, control hole 17.
Embodiment
Invention is further illustrated below by way of embodiments and drawings.
As shown in figure 1, a kind of reactor assembly of effective control aerobic particle mud system dissolved oxygen, including water inlet are single
Member, reactor body, aeration unit, water unit and control unit.
Reactor body is cylinder, and side top sets water inlet, and side is provided with multiple be intervally arranged from top to bottom
Delivery port 10, one of water outlet can be selected when actual use.Sealed at the top of reactor body by blind flange, bottom is set
Put mud discharging mouth.As shown in Fig. 2 offer 5 through holes on blind flange, respectively gas re-entry hole 13, air inlet 14, exhaust outlet
15th, monitoring holes 16 and control hole 17, the different pipeline for wearing, in order to ensure the closed environment of inside reactor, Suo Youguan
Line enters the tapping of reactor body through blind flange, is sealed using paraffin.
Liquid level is supervised online with having dissolved oxygen probe 11, and being connected to dissolved oxygen by monitoring holes 16 in reactor body
Instrument 12 is surveyed, the dissolved oxygen concentration (DO) for showing waste water in reactor in real time.
Inlet unit and water unit are respectively used to the water inlet and water outlet of reactor body, wherein inlet unit, including with
Liquid check valves 6 and immersible pump 4 that the water inlet on reactor body top is sequentially connected, immersible pump 4 are arranged at into bucket 5,
Enter storage pending processing waste water in bucket 5；Water unit, including peristaltic pump 8 for collect water outlet with going out bucket 9, wriggling
The two ends of pump 8 connect delivery port 10 by pipeline respectively and go out bucket 9.
Aeration unit includes air pump 1, the first rotor flowmeter 2.1, the second spinner flowmeter 2.2, third trochanter flow
Meter 2.3 and porous aeration head 2.4, porous aeration head 2.4 are located at the bottom of reactor body, and pass through air inlet 14 by tracheae
After be sequentially connected with the second spinner flowmeter 2.2, the first rotor flowmeter 2.1 and air pump 1.Air pump 1 passes through porous aeration head
2.4 blast oxygen-containing air in waste water, to adjust the DO in water.Two-way blast pipe is connected on blind flange at the top of reactor body
Road, wherein being directly discharged into all the way through exhaust outlet 15 in air, the pipeline is by the controlling stream throughput of third trochanter flowmeter 2.3.
Another road passes through the air inlet for being back to the second spinner flowmeter 2.2 after gas re-entry hole 13 by air-introduced machine 2.5, Ran Houtong
Porous aeration head 2.4 is crossed again to be aerated waste water.
Reactor is overall to carry out central control by control unit 3, and control unit 3 can be realized using single-chip microcomputer, PLC etc..Control
The connection of unit 3 air pump 1 processed, the first rotor flowmeter 2.1, the second spinner flowmeter 2.2, third trochanter flowmeter 2.3, micropore
Aeration head 2.4, immersible pump 4, liquid level meter probes 7, peristaltic pump 8, Automated condtrol is carried out to each equipment.Alternatively, it is also possible to connect
Dissolved oxygen online monitoring instrument 12, closed-loop control is carried out for dissolved oxygen data.
The operation workflow of the reactor assembly is as follows:
The waste water matrix entered in bucket 5 is pumped into reactor using immersible pump 4, when liquid level meter probes 7 detect liquid level
When reaching object height, stop immersible pump 4 and work.Then SBR techniques are run, aeration phase blasts air using air pump 1 and entered
Row aeration is dense by the dissolved oxygen in dissolved oxygen probe 11 and dissolved oxygen online monitoring instrument 12 in real time monitoring water body during this
Degree.In aeration process, DO and aeration quantity are according to reactor organic loading and reference《Sequencing batch activated sludge sewage treatment project
Technical specification (HJ 577-2010)》Relevant criterion is calculated and tried to achieve, and is adjusted by the first rotor flowmeter 2.1.System hydraulic shear
Surface gas velocity according to gas in reactor body is diffused into by porous aeration head 2.4 determines that surface gas velocity passes through indirectly
Three-rotor flow meter 2.3 controls the flow from the emergent gas of blind flange steam vent 15 to pass through the gas of low oxygen content in reactor
Return port 13 is back to the entrance of the second spinner flowmeter 2.2, is aerated with fresh air mixing.Due to this partial air
One or many aeration cycles are have passed through, therefore oxygen content therein is substantially reduced, and can improve gas velocity and sludge system
While hydraulic shear, the DO contents in control water.Finally, passed through using the overall control of the second spinner flowmeter 2.2 porous
The aerating gas flow of aeration head 2.4.Reactor water outlet is pumped into out in bucket 9 by peristaltic pump 8.
Using the device carry out aerobic particle mud culture when, using SBR process operation reactors, the cycle of operation be divided into
Water-aeration-precipitation-water outlet four-stage, concrete technology is as follows：First seed sludge before operation, seed sludge is derived from municipal dirt
Water treatment plant aeration tank；Inoculation MLSS is 4-6g/L；Enter water-based for town sewage, inlet COD concentration is 300-800mg/L,
Maintain organic loading 1.5-3.0kg CODm-3·d-1；Using 4-8 ratio of height to diameter, granular sledge screening is conducive to act on；
Using 30%-70% draining ratio；The cycle of operation is 4-6h, it is ensured that increase sewage load while contaminant removal efficiency；
Sedimentation time is 5-60min, is conducive to the wash-off and granular sludge of floc sludge；Aeration time is 3-5h.
Current aerobic particle mud technique is that the enough hydraulic shears of guarantee system cause system compared with high-strength aeration and molten
Oxygen concentration is solved, is unfavorable for the enrichment of granule sludge facultative microbe.In comparison, the present invention is in aeration phase, in aeration process
In, the air capacity of air is directly discharged into by controlling third trochanter flowmeter 2.3 to adjust, part in reactor is passed through aeration
Gas be back to again in porous aeration head 2.4, controlled while providing enough hydraulic shears for granule sludge system
Dissolved oxygen concentration.Typically according to actual motion needs, the throughput 40-200L/h of air pump 1 is controlled, by controlling gas outlet the 3rd
The throughput of spinner flowmeter 2.3 realizes the throughput of the second spinner flowmeter of air inlet 2.2 between 400-600L/h, it is ensured that anti-
Answer device surface gas velocity 1.0-2.5cm/s.
Embodiment
The aerobic particle mud technique that town sewage is handled in the present embodiment uses a dischargeable capacity for 4.0L sequence batch
Formula reactor (SBR), the main body of reactor is the lucite cylinder of cylinder, the high 50cm of cylinder, and internal diameter 10cm, ratio of height to diameter is 5,
Its structure is as shown in figure 1, repeat no more.Reactor operation program is controlled by a set of PLC controllers.
The present embodiment seed sludge is derived from municipal sewage plant aeration tank, and shannon index is 4.96, it is meant that in particle
There is higher flora abundance, the horizontal Bacterial community analysis of door finds that Proteobacteria and Bacteroidetes have accounted for more than 65%, this
A little bacteriums are all the critical bacterial populations in aerobic particle mud, and energy aid-device realizes the quick particle of aerobic particle mud.Connect
Kind of MLSS is 5g/L, enters water-based for town domestic sewage, and influent COD concentration is to remain organic in 650mg/L, running
Load 2kg CODm-3·d-1。
Operating process using above-mentioned reactor for treatment town sewage culture aerobic particle mud is as follows：In PLC controllers
Control under, reactor according to water inlet-aeration-precipitation-water outlet order run.The initial service condition of reactor is：Week
Phase 4h, wherein：Water inlet 5min, aeration 225min, sedimentation 5min, draining 5min.
In aeration process, it is 90L/h to control the reading of the first rotor flowmeter 2.1, by controlling at exhaust outlet 15 the 3rd turn
Subflow gauge 2.3 makes inside reactor point gas be back to air inlet 14 by gas backstreaming mouthful 13, makes the second spinner flowmeter
2.2 readings are 500L/h, it is ensured that reactor surface gas velocity 1.8cm/s, and enough hydraulic shears are provided for granule sludge system
Simultaneously by dissolved oxygen control in 4-6mg/L scopes, volume-exchange ratio is 50%.
Due to controlling the method for operation of dissolved oxygen using gas backstreaming, high-solubility oxygen condition caused by high-strength aeration is overcome
Anaerobism, anoxic zone are reduced inside lower granule sludge, and the problem of amphimicrobe ecological niche is not enough can promote denitrogenation dephosphorizing etc.
Effective enrichment of functional microorganism, realizes that reactor is run steadily in the long term.Ensureing hydraulic shear compared to conventional SBR method
Aeration quantity can be effectively reduced simultaneously, the further energy-saving of aerobic particle mud technique is realized.
Claims (9)
1. a kind of reactor assembly of effective control aerobic particle mud system dissolved oxygen, it is characterised in that：Including reactor master
Body, inlet unit, aeration unit and water unit；
Described reactor body side is provided with water inlet and delivery port (10), and top is sealed by blind flange；Reactor master
Internal liquid level is connected to the dissolved oxygen probe (11) of dissolved oxygen online monitoring instrument (12) to have；Described aeration unit bag
Include air pump (1), the first rotor flowmeter (2.1), the second spinner flowmeter (2.2), third trochanter flowmeter (2.3) and porous
Aeration head (2.4), porous aeration head (2.4) is located at the bottom of reactor body, and is sequentially connected with the second rotor stream by tracheae
Two-way exhaust is connected on blind flange at the top of gauge (2.2), the first rotor flowmeter (2.1) and air pump (1), reactor body
Pipeline, wherein route third trochanter flowmeter (2.3) control is directly discharged into air, another road is returned by air-introduced machine (2.5)
It flow to the air inlet of the second spinner flowmeter (2.2)；
Described inlet unit and water unit is respectively used to the water inlet and water outlet of reactor body.
2. the reactor assembly of effectively control aerobic particle mud system dissolved oxygen as claimed in claim 1, it is characterised in that
Described inlet unit, including the liquid check valves (6) and immersible pump being sequentially connected with the water inlet on reactor body top
(4), immersible pump (4) is arranged at into bucket (5).
3. the reactor assembly of effectively control aerobic particle mud system dissolved oxygen as claimed in claim 1, it is characterised in that
Described water unit, including peristaltic pump (8), with going out bucket (9), peristaltic pump (8) two ends connect delivery port by pipeline respectively
(10) and bucket (9) is gone out.
4. the reactor assembly of effectively control aerobic particle mud system dissolved oxygen as claimed in claim 1, it is characterised in that
Described reactor body side is from top to bottom provided with several delivery ports (10) at different height.
5. the reactor assembly of effectively control aerobic particle mud system dissolved oxygen as claimed in claim 1, it is characterised in that
The liquid level meter probes (7) for induction level height are additionally provided with described reactor body.
6. the reactor assembly of effectively control aerobic particle mud system dissolved oxygen as claimed in claim 1, it is characterised in that
Control unit is additionally provided with, for carrying out central control.
7. the reactor assembly of effectively control aerobic particle mud system dissolved oxygen as claimed in claim 6, it is characterised in that
Described control unit uses PLC.
8. the reactor assembly of effectively control aerobic particle mud system dissolved oxygen as claimed in claim 1, it is characterised in that
All pipelines enter the tapping of reactor body through blind flange, are sealed using paraffin.
9. a kind of method of the device culture aerobic particle mud described in utilization claim any one of 1-8, it is characterised in that
Waste water is handled with SBR techniques in reactor body, first seed sludge before operation, inoculation MLSS is 4-6g/L；Enter water base
Matter is town sewage, and inlet COD concentration is maintenance organic loading 1.5-3.0kg CODm in 300-800mg/L, running-3·d-1；Using 4-8 ratio of height to diameter and 30%-70% draining ratio；The SBR cycles of operation are 4-6h, are divided into water, aeration, sink
Shallow lake, water outlet four-stage, wherein sedimentation time are 5-60min；Aeration time is 3-5h, in aeration process, passes through control the
Three-rotor flow meter (2.3) adjusts the air capacity for being directly discharged into air, part in reactor is passed through the gas of aeration again
It is back in porous aeration head (2.4), control dissolved oxygen is dense while providing enough hydraulic shears for granule sludge system
Degree.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102775027A (en) * | 2012-08-15 | 2012-11-14 | 北京城市排水集团有限责任公司 | Granular sludge integrated autotrophic nitrogen removal device and operating method thereof |
| CN103663725A (en) * | 2013-12-05 | 2014-03-26 | 北京交通大学 | Continuous flow biological denitrification method based on granular sludge, and apparatus |
| CN104803478A (en) * | 2015-05-01 | 2015-07-29 | 浙江大学 | Energy-saving and consumption-reduction stable operation device and method for enhancing aerobic granule sludge |
| CN105923768A (en) * | 2016-06-08 | 2016-09-07 | 张庆硕 | Ammonia oxidation reactor |
| CN207330498U (en) * | 2017-07-13 | 2018-05-08 | 浙江大学 | A kind of reactor assembly of effectively control aerobic particle mud system dissolved oxygen |
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2017
- 2017-07-13 CN CN201710571621.9A patent/CN107244731A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102775027A (en) * | 2012-08-15 | 2012-11-14 | 北京城市排水集团有限责任公司 | Granular sludge integrated autotrophic nitrogen removal device and operating method thereof |
| CN103663725A (en) * | 2013-12-05 | 2014-03-26 | 北京交通大学 | Continuous flow biological denitrification method based on granular sludge, and apparatus |
| CN104803478A (en) * | 2015-05-01 | 2015-07-29 | 浙江大学 | Energy-saving and consumption-reduction stable operation device and method for enhancing aerobic granule sludge |
| CN105923768A (en) * | 2016-06-08 | 2016-09-07 | 张庆硕 | Ammonia oxidation reactor |
| CN207330498U (en) * | 2017-07-13 | 2018-05-08 | 浙江大学 | A kind of reactor assembly of effectively control aerobic particle mud system dissolved oxygen |
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