CN107434333A - The SBR water treatment facilities and method of a kind of intensified denitrification and dephosphorization - Google Patents
The SBR water treatment facilities and method of a kind of intensified denitrification and dephosphorization Download PDFInfo
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
-
- 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
- C02F3/308—Biological phosphorus removal
-
- 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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/005—Processes using a programmable logic controller [PLC]
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/22—O2
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/42—Liquid level
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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
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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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
The invention discloses the SBR processing units and method of a kind of intensified denitrification and dephosphorization.The device includes wastewater influent device successively by water (flow) direction（3）, sbr reactor pond, overflow mechanism and discharging device（4）；The sbr reactor pond includes pre-reaction pond（1）With main reaction pond（2）.The processing method comprises the following steps：（1）Sewage carries out water inlet aeration in pre-reaction pond；（2）Sewage extends in main reaction pond to be aerated；（3）Sewage staticly settles in main reaction pond；（4）Supernatant after precipitation strains water discharge.Apparatus of the present invention main equipment only has a batch-type batch reactor, and no second pond, sludge recirculation system, regulating reservoir, preliminary sedimentation tank, characteristics of compact layout, floor space are small, low cost；The inventive method uses quiescent setting, and outlet effect is good, detest/anoxic and aerobic process alternately occurs, sludge age is short, active height, there is good Nitrogen/Phosphorus Removal.
Description
Technical field
The invention belongs to activated sludge biochemical method sewage treatment area, and in particular to the SBR water process of intensified denitrification and dephosphorization
Device and method.
Background technology
Chinese Ministry of Environmental Protection announces《2012 China Environmental State Bulletins》：River more than 30% and the underground water more than 50% is not up to standard.Water
Sharp portion was once evaluated national more than 700 bar rivers, the water resource quality of about 100,000 kilometers of river length, and result is：46.5%
River length is contaminated, and water quality only reaches four, five classes；The 10.6% serious pollution of river length, to surpass five classes, water body has been lost to be made water quality
With value；More than 90% urban waters are seriously polluted.Water pollution extends just from east to western development from Zhi Liuxiang mainstreams, from
City is spread to rural area, from earth's surface to subsurface wastewater infiltration system, is spread from region to basin.Water pollution main contamination index in China's is total nitrogen
And total phosphorus.It is 482.4 hundred million tons to add up annual wastewater discharge, than last year increase by 4.9%.Wherein discharged volume of industrial waste water is 221.1
Hundred million tons, than last year increase by 4.1%, sanitary sewage discharge capacity is 261.3 hundred million tons, than last year increase by 5.5%.As can be seen here, at present I
The total environment situation of state is：" locally making moderate progress, overall still to deteriorate, prospect is troubling ".At considerably long from now on one
In period, undoubtedly there will be local water pollution is even it is also possible to aggravate for water pollution.Water pollution has turned into China's economy to hold
One big restraining factors of supervention exhibition, serious threat China's expanding economy.Therefore, wastewater treatment efficiency and optimization sewage are improved
Denitrogenation dephosphorizing, reducing sewage treatment plant's cost etc. has very great theoretical and practical significance.So need to existing
Activated sludge process be improved to reach higher sewage drainage standard.
SBR is sequencing batch reactor（Sequencing Batch Reactor Activated Sludge
Process）Abbreviation, be a kind of to be lived by intermittent aerating mode come the activated sludge sewage disposal technology that runs, also known as batch-type
Property sludge.Different from traditional waste water treatment process, SBR technologies substitute the behaviour of space segmentation using the mode of operation of time segmentation
Make mode, unstable biochemical reaction substitutes stable state biochemical reaction, stands preferable precipitation and substitutes traditional dynamic precipitation.It main
It is characterized in orderly and intermittently operated operationally, the core of SBR technologies is sbr reactor pond, Chi Ji homogenizing, is just sunk, biology
Degraded, two functions such as heavy are in a pond, no sludge recirculation system.Exactly these particularity of SBR techniques make it have advantages below：a、
Preferable plug-flow process increases biochemical reaction motive force, and efficiency improves, anaerobism in pond, it is aerobic be in alternating state, purification is imitated
Fruit is good；B, operational effect is stable, and sewage precipitates under preferable inactive state, it is necessary to which the time is short, efficiency high, and effluent quality is good；
C, anti impulsion load, there is the processing water of delay in pond, have dilution, cushioning effect to sewage, be effective against water and organic dirt
Impact；D, each operation in technical process can be adjusted according to water quality, water, flexible operation；E, processing equipment is few, construction
Simply, easy to operation and maintenance management；F, DO, BOD5 concentration gradient in reaction tank be present, effectively control activated sludge bulking；g、
SBR methods system is also suitable for combined type structure method in itself, beneficial to the enlarging and transformation of waste water treatment plant；H, denitrogenation dephosphorizing, fit
Work as Controlling operation method, realize aerobic, anoxic, anaerobic state alternating, there is good Nitrogen/Phosphorus Removal；I, technological process letter
Single, low cost.Main equipment only has a batch-type batch reactor, no second pond, sludge recirculation system, regulating reservoir, just sinks
Pond can also omit, characteristics of compact layout, small accommodation area.
Due to above-mentioned technical characterstic, SBR system has further widened the use range of activated sludge process.With regard to recent technology
Condition, SBR system are more suitable for situations below：（1）Small Urban sanitary sewage and the industrial wastewater of industrial enterprise, especially interval
Discharge and the larger place of changes in flow rate.（2）The place of higher effluent quality, such as landscape excursion district, lake and bay are needed,
Organics removal is not only wanted, also requires dephosphorization denitrogenation in water outlet, prevents river lake eutrophication.（3）The place of water scarcity.
SBR system can carry out materializing strategy after biological treatment, it is not necessary to increase facility, be easy to the recycling of water.（4）Land used is nervous
Place.（5）Transformation to built continuous flow sewage treatment plant etc..（6）It is especially suitable for handling small water, the industry of intermittent discharge
The improvement of waste water and scattered point-source pollution.
But in existing SBR water treatment procedures, still can exist nitrification not exclusively, utilization of carbon source is unreasonable, denitrogenation removes
The bad situation of phosphorus.
The content of the invention
The shortcomings that present invention aims at existing for existing SBR water technologies, there is provided a kind of intensified denitrification and dephosphorization
SBR water treatment facilities, and the SBR method for treating water of the intensified denitrification and dephosphorization based on the device.
To achieve the above object, the technical solution adopted by the present invention is as follows.
A kind of SBR water treatment facilities of intensified denitrification and dephosphorization, it is anti-to include wastewater influent device, SBR successively by water (flow) direction
Ying Chi and discharging device；The sbr reactor pond includes pre-reaction pond and main reaction pond；
Pre-reaction pond is advantageous to the mixing for entering SBR ponds sewage and interior backflow mixed liquor, buffers the impact to biochemical system, and
Line monitors the concentration into water pollutant, and water inlet pollutant concentration raises suddenly, then can increase stop of the sewage in pre-reaction pond
Time slows down impact of the water to system；
The front end connection wastewater influent device in the pre-reaction pond, the rear end in pre-reaction pond is by setting valvular pipeline to connect
Main reaction pond, the rear end connection discharging device in the main reaction pond；The pre-reaction pond is also anti-with master by sludge return pipe
Pond is answered to connect；
The first aerator is provided with the pre-reaction pond；The first PH sensor, first are additionally provided with the pre-reaction pond
Dissolved oxygen sensor, the first temperature sensor and the first liquid level sensor；First PH sensor, the first dissolved oxygen sensing
Device, the first temperature sensor and the first liquid level sensor are connected with each self-corresponding PLC and controlled by computer software respectively；
The second aerator and the second submersible agitator are provided with the main reaction pond；Is additionally provided with the main reaction pond
Two PH sensors, the second dissolved oxygen sensor, second temperature sensor, the second aeration sensor, the second liquid level sensor and oxygen
Original sensor is gone back in change；Second PH sensor, the second dissolved oxygen sensor, second temperature sensor, second aeration sensor,
Second liquid level sensor and redox sensor are connected with each self-corresponding PLC and controlled by computer software respectively；
The bottom in the main reaction pond is additionally provided with sludge discharge line.
Further, the wastewater influent device is that intake pump connects pre-reaction pond by water inlet pipe, and is set on water inlet pipe
It is equipped with inlet valve.
Further, second aerator is arranged on the bottom of pond in main reaction pond, and the aerator includes air blower
And aeration head, the air blower are attached with aeration head by air inlet pipe, and air intake valve is provided with air inlet pipe.
Further, the discharging device is to connect water decanter by outlet pipe, and flowing water Valve is provided with outlet pipe；
Water decanter is a kind of effluent weir that can be adjusted with SEA LEVEL VARIATION, and discharge outlet is submerged in underwater depth, can prevent scum silica frost from entering；
The discharging device front end is provided with overflow mechanism, and the overflow mechanism includes overflow wall and regulation metallic plate, described to overflow
Stream wall is located in main reaction pond and on the inwall fixed to main reaction pond；The regulation metallic plate is fixed on the inner side of overflow wall
On face, and the top surface for adjusting metallic plate is higher than the top surface of the overflow wall.
Further, the first aerator in the pre-reaction pond is connected to the end of the water inlet pipe in water feed apparatus.
Further, second aerator and the second submersible agitator are arranged on the bottom in main reaction pond, described
The aeration opening of two aerators is distributed in T fonts, is advantageous to SBR main reactions pond and is in complete oxygenation state.
Further, microorganism group turns into polyP bacteria (PAO) and denitrifying bacteria in the pre-reaction pond.
Further, microorganism group turns into polyP bacteria (PAO) and denitrifying bacteria in the main reaction pond and nitrification is thin
Bacterium.
A kind of SBR method for treating water of intensified denitrification and dephosphorization based on any of the above-described described device, comprises the following steps：
（1）Sewage by thickness grid filtration and clock-type sedimentation basin precipitation process is entered into pre-reaction by wastewater influent device
Pond, the first aerator is opened, water inlet aeration is completed to the sewage for entering pre-reaction pond, completes aerobic nitrification reaction and aerobic suction
Phosphorus reaction；And after being completed in pre-reaction pond to the on-line monitoring of sewage, then be discharged into main reaction pond；
（2）The second aerator is opened, the sewage for entering main reaction pond is persistently aerated and carries out extension aeration, completes excessive suction phosphorus
Reaction；
（3）After completing excessive suction phosphorus reaction, the second aerator is closed, submersible agitator is opened, to the sewage in main reaction pond
It is stirred；Submersible agitator is closed, is staticly settled, completes anoxic denitrification denitrification reaction and anaerobic phosphorus release reaction；
（4）After completing anoxic denitrification denitrification reaction and anaerobic phosphorus release reaction, the supernatant after precipitation is passed through into discharging device
Water decanter strains water and is expelled to ultraviolet disinfection pond, and the sludge of precipitation is discharged by sludge discharge pipe, enters sewage sludge storage pond after static pressure.
Further, step（3）In, the time of the stirring is 0.5 hour.
Further, the time of the water inlet aeration, the time for extending aeration, the time staticly settled and the time for straining water
Pollutant concentration in sewage is set.
Further, be 100~110mg/L in influent COD, influent ammonia nitrogen is 15~20mg/L, water inlet total phosphorus be 2~
During 3mg/L, the time of the water inlet aeration is 45~60 minutes, and the time for extending aeration is 15~20 minutes, described quiet
The time for putting precipitation is 0.5 ~ 1 hour, and the time for straining water is 1 hour.
Compared with prior art, the invention has the advantages that and beneficial effect：
（1）The inventive method by adjust water inlet sequential and increase aeration duration can effective denitrogenation dephosphorizing, while utilize carbon
Source is few to realize that the high-efficiency biological denitrification of sewage breaches low C/N sewage water denitrifications efficiency and is difficult to improve even without additional carbon
Problem, and water outlet ammonia nitrogen and total phosphorus are below《Urban wastewater treatment firm pollutant emission standard》GB18918-2002 one-level
A standards；
（2）The inventive method uses on line real-time monitoring, in the case of influent load identical, control the reaction of each process
Time and the maximized carbon source that make use of in sewage, improve the treatment effeciency of sewage and improve into the organic negative of water
Lotus, SVI values are relatively low, and sludge is easy to precipitate, and do not produce sludge bulking phenomenon, and technological process is simple, operation cost is low；
（3）Apparatus of the present invention main equipment only has a batch-type batch reactor, no second pond, sludge recirculation system, regulation
Pond, preliminary sedimentation tank, characteristics of compact layout, floor space are small, low cost；
（4）The inventive method uses quiescent setting, and outlet effect is good, detest/anoxic and aerobic process alternately occurs, sludge age is short, living
Property it is high, have good Nitrogen/Phosphorus Removal；
（5）Because polyP bacteria must carry out releasing phosphorus under anaerobic, and enter the sufficient aerobic phosphorus absorption of next stage progress, this
Sedimentation time in inventive method is longer, is advantageous to the foundation of anaerobism dephosphorization environment；
（6）Apparatus of the present invention set pre-reaction pond, anti impulsion load, have the processing water of delay in pond, there is dilution, buffering to sewage
Effect, is effective against the impact of water and organic dirt.
Brief description of the drawings
Fig. 1 is the structural representation of the backward SBR water treatment facilities of strengthened denitrification in embodiment；
Fig. 2 is the complete process flow figure of the backward SBR water process of strengthened denitrification in embodiment；
Fig. 3 is the ammonia nitrogen removal design sketch of SBR water process of the embodiment 1 based on apparatus of the present invention；
Fig. 4 is the COD removal effect figures of SBR water process of the embodiment 1 based on apparatus of the present invention；
Fig. 5 is the removal effect figure of the total phosphorus of SBR water process of the embodiment 1 based on apparatus of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the invention will be further described, but the invention is not restricted to following examples.
A kind of SBR water treatment facilities structural representation of intensified denitrification and dephosphorization of the present embodiment is as shown in figure 1, press water (flow) direction
Include wastewater influent device 3, sbr reactor pond, overflow mechanism and discharging device 4 successively；Sbr reactor pond includes the He of pre-reaction pond 1
Main reaction pond 2；
The front end connection wastewater influent device 3 in pre-reaction pond 1, the rear end in pre-reaction pond 1 is by setting valvular pipeline to connect
Main reaction pond, connection main reaction pond 2, the rear end connection discharging device 4 in main reaction pond 2；Discharging device 4 connects with ultraviolet disinfection pond
Connect；Pre-reaction pond 1 is also connected by sludge return pipe with main reaction pond 2；
Wastewater influent device 3 be intake pump 3-1 by water inlet pipe 3-2 connection pre-reactions pond 1, and be provided with water inlet pipe 3-2 into
Penstock 3-3；
Discharging device 4 is by outlet pipe 4-1 connection water decanter 4-2, and flowing water Valve 4-3 is provided with outlet pipe 4-1；Water outlet
The front end of device 4 is provided with overflow mechanism, and overflow mechanism includes overflow wall and regulation metallic plate, and overflow wall is located in main reaction pond 2
And on the inwall fixed to main reaction pond 2；Regulation metallic plate is fixed on the medial surface of overflow wall, and adjusts the top of metallic plate
Surface is higher than the top surface of the overflow wall；
The first aerator 1-5 is provided with pre-reaction pond 1；The first PH sensor 1-1, first are additionally provided with pre-reaction pond 1
Dissolved oxygen sensor 1-2, the first temperature sensor 1-3 and the first liquid level sensor 1-4；First PH sensor 1-1, the first dissolving
Lambda sensor 1-2, the first temperature sensor 1-3 and the first liquid level sensor 1-4 are connected and passed through with each self-corresponding PLC respectively
Computer software controls；
The second aerator 2-1 and the second submersible agitator 2-2 are provided with main reaction pond 2；Is additionally provided with main reaction pond 2
Two PH sensor 2-3, the second dissolved oxygen sensor 2-4, second temperature sensor 2-5, the second aeration sensor 2-6, the second liquid
Level sensor 2-7 and redox sensor 2-8；Second PH sensor 2-3, the second dissolved oxygen sensor 2-4, second temperature pass
Sensor 2-5, the second aeration sensor 2-6, the second liquid level sensor 2-7 and redox sensor 2-8 respectively with it is each corresponding
PLC connections and controlled by computer software；
Second aerator 2-1 is arranged on the bottom of pond in main reaction pond 2, and aerator includes air blower and aeration head, air blower with
Aeration head is attached by air inlet pipe, and air intake valve is provided with air inlet pipe；
The first aerator 1-5 in pre-reaction pond 1 is connected to the end of the water inlet pipe 3-2 in water feed apparatus 3；Second aeration dress
Put 2-1 and the second submersible agitator 2-2 and be arranged on the bottom in main reaction pond 2, the second aerator 2-1 aeration opening is in T fonts
Distribution；
The bottom in main reaction pond 2 is additionally provided with sludge discharge line 2-9.
Embodiment 1
The SBR water process of intensified denitrification and dephosphorization, design treatment water 5000t/d, single SBR pond bodies product are carried out using said apparatus
For 150 m3, overall length 12 m, a width of 5m, high 2.5 m, the m of available depth 2, space is substituted using the mode of operation of time segmentation
The mode of operation of segmentation, unstable biochemical reaction substitute stable state biochemical reaction, stand preferable precipitation and substitute traditional dynamic precipitation.
The process chart of the SBR water process of intensified denitrification and dephosphorization by grid as shown in figure 3, will be pre-processed useless first
Water, into sump, by submersible sewage pump（Lift pump room）Lifting, accelerate the precipitation of the grains of sand, the sewage of sedimentation basin through clock-type setting pot
Sewage disposal is carried out into apparatus of the present invention, and water after processing is disinfected by ultraviolet disinfection pond or other disinfection way
After discharge, sludge storage pool is entered after excess sludge static pressure, finally by between sludge dewatering carry out sludge outward transport disposal.
Wastewater influent parameter is：Influent COD is 100mg/L, and influent ammonia nitrogen 15mg/L, water inlet total phosphorus is 2mg/L.
Comprise the following steps that：
（1）Sewage after thickness grid filtration and clock-type sedimentation basin precipitation process is entered in advance by wastewater influent device 3
Reaction tank 1, the first aerator 1-5 is opened, water inlet aeration is completed to the sewage for entering pre-reaction pond 1, it is anti-to complete aerobic nitrification
Should be with aerobic suction phosphorus reaction；And after being completed in pre-reaction pond 1 to the on-line monitoring of sewage, then be discharged into main reaction pond 2；Water inlet
The time of aeration is 45 minutes；
（2）The second aerator 2-1 is opened, the sewage for entering main reaction pond 2 is persistently aerated and carries out extending aeration 15 minutes, it is complete
Phosphorus reaction is inhaled into excessive；
（3）After completing excessive suction phosphorus reaction, the second aerator 2-1 is closed, submersible agitator 2-2 is opened, in main reaction pond 2
Sewage be stirred；Submersible agitator 2-2 is closed, is staticly settled 1 hour；Complete anoxic denitrification denitrification reaction and anaerobism is released
Phosphorus reaction；
（4）After completing anoxic denitrification denitrification reaction and anaerobic phosphorus release reaction, the supernatant after precipitation is passed through into discharging device 4
Water decanter 4-2 strains water and is expelled to ultraviolet disinfection pond, strains the water time as 1 hour, the sludge of precipitation is arranged by sludge discharge pipe 2-9
Go out, enter sewage sludge storage pond after static pressure.
Implementation result
1st, the removal effect of ammonia nitrogen
The ammonia nitrogen removal design sketch of sewage as shown in figure 4, as seen from Figure 4, into device sewage total nitrogen using ammonia nitrogen as
Main, wherein water inlet highest ammonia nitrogen concentration is 21.31mg/L, minimum ammonia nitrogen concentration of intaking is 7.543mg/L, and average influent ammonia nitrogen is dense
Spend for 14.345mg/L；Entered in Aerobic Pond activated sludge after the nitrification of nitrobacteria, water outlet ammonia nitrogen maximum concentration is
0.581 mg/L, minimum ammonia nitrogen concentration are 0.106 mg/L, and average water outlet ammonia nitrogen concentration is 0.27mg/L, average ammonia nitrogen removal frank
For 98.12%, it is much better than《Urban wastewater treatment firm pollutant emission standard》One-level A standards.
2nd, COD removal effect
COD is the carbon source that microorganism grows in sewage treatment process, when carrying out the denitrification dephosphorization function of sewage, denitrification denitrogenation
Pseudomonas is in heterotroph facultative anaerobic bacteria, and in anoxia condition, anti-nitration reaction is carried out by electron donor and nutrient source of organic carbon,
And the acetic acid glycosides that the polyP bacteria of dephosphorization function needs active absorption to be turned into by anaerobic fermentation and acid production bacterium conversion Organic substance in water is realized,
This can also consume carbon source.
The COD removal effects of sewage are as shown in figure 5, as seen from Figure 5, the SBR water process pair based on apparatus of the present invention
There is extraordinary removal effect in COD, carbon source therein is efficiently utilized.The COD concentration into the sewage of device
Relatively low, wherein water inlet highest COD concentration is 161 mg/L, water inlet lowest COD concentration is 47mg/L, and average inlet COD concentration is
79mg/L, its water outlet COD maximum concentration are 24mg/L, and lowest COD concentration is 9mg/L, and average effluent COD concentration is 16.5 mg/
L, average removal rate 79.1%, is much better than《Urban wastewater treatment firm pollutant emission standard》One-level A standards.
3rd, the removal effect of total phosphorus
The total phosphorus removal effect of sewage as shown in figure 5, as seen from Figure 5, the SBR water process based on apparatus of the present invention for
Total phosphorus has extraordinary removal effect.Total phosphorus concentration fluctuation is larger into the sewage of device, wherein water inlet highest total phosphorus is dense
Spend for 1.77mg/L, minimum total phosphorus concentration of intaking is 0.634mg/L, and total phosphorus concentration of averagely intaking is 1.04mg/L, and its water outlet is total
Phosphorus maximum concentration is 0.492mg/L, and minimum total phosphorus concentration is 0.217mg/L, and average water outlet total phosphorus concentration is 0.381mg/L, is put down
Equal clearance is 63.4%, is reached《Urban wastewater treatment firm pollutant emission standard》One-level A standards.
Denitrogenation dephosphorizing SBR techniques of the present invention have to target contaminant COD, ammonia nitrogen, total phosphorus in summary removes effect well
Fruit, wherein averagely effluent COD concentration is 16.5 mg/L, average water outlet ammonia nitrogen concentration is 0.27 mg/L, and average water outlet total phosphorus is dense
Spend and reach and be better than for 0.381mg/L, every water outlet《Urban wastewater treatment firm pollutant emission standard》One-level A standards.
Claims (11)
1. the SBR water treatment facilities of a kind of intensified denitrification and dephosphorization, it is characterised in that include wastewater influent successively by water (flow) direction and fill
Put（3）, sbr reactor pond and discharging device（4）；The sbr reactor pond includes pre-reaction pond（1）With main reaction pond（2）；
The pre-reaction pond（1）Front end connection wastewater influent device（3）, pre-reaction pond（1）Rear end by being provided with valve
Pipeline connection main reaction pond（2）, the main reaction pond（2）Rear end connection discharging device（4）；The discharging device（4）With
Ultraviolet disinfection pond connects；The pre-reaction pond（1）Also pass through sludge return pipe and main reaction pond（2）Connection；
The pre-reaction pond（1）Inside it is provided with the first aerator（1-5）；The pre-reaction pond（1）Inside it is additionally provided with the first PH
Sensor（1-1）, the first dissolved oxygen sensor（1-2）, the first temperature sensor（1-3）With the first liquid level sensor（1-4）；Institute
State the first PH sensor（1-1）, the first dissolved oxygen sensor（1-2）, the first temperature sensor（1-3）With the first liquid level sensor
（1-4）It is connected with each self-corresponding PLC and is controlled by computer software respectively；
The main reaction pond（2）Inside it is provided with the second aerator（2-1）With the second submersible agitator（2-2）；The main reaction
Pond（2）Inside it is additionally provided with the second PH sensor（2-3）, the second dissolved oxygen sensor（2-4）, second temperature sensor（2-5）,
Two aeration sensors（2-6）, the second liquid level sensor（2-7）With redox sensor（2-8）；Each sensor respectively with PLC
Connect and controlled by computer；The main reaction pond（2）Bottom be additionally provided with sludge discharge line（2-9）.
A kind of 2. SBR water treatment facilities of intensified denitrification and dephosphorization according to claim 1, it is characterised in that the sewage
Water feed apparatus（3）For intake pump（3-1）Pass through water inlet pipe（3-2）Connect pre-reaction pond（1）, and water inlet pipe（3-2）On be provided with
Inlet valve（3-3）.
A kind of 3. SBR water treatment facilities of intensified denitrification and dephosphorization according to claim 1, it is characterised in that the water outlet
Device（4）To pass through outlet pipe（4-1）Connect water decanter（4-2）, and outlet pipe（4-1）On be provided with flowing water Valve（4-3）；Institute
State discharging device（4）Front end is provided with overflow mechanism, and the overflow mechanism includes overflow wall and regulation metallic plate, the overflow wall
Positioned at main reaction pond（2）It is interior and be fixed to main reaction pond（2）Inwall on；The regulation metallic plate is fixed on the interior of overflow wall
On side, and the top surface for adjusting metallic plate is higher than the top surface of the overflow wall.
4. the SBR water treatment facilities of a kind of intensified denitrification and dephosphorization according to claim 1, it is characterised in that described second
Aerator（2-1）It is arranged on main reaction pond（2）Bottom of pond, the aerator includes air blower and aeration head, the air blast
Machine is attached with aeration head by air inlet pipe, and air intake valve is provided with air inlet pipe.
5. the SBR water treatment facilities of a kind of intensified denitrification and dephosphorization according to claim 1, it is characterised in that described pre- anti-
Ying Chi（1）The first interior aerator（1-5）It is connected to water feed apparatus（3）In water inlet pipe（3-2）End；Described second exposes
Device of air（2-1）With the second submersible agitator（2-2）It is arranged on main reaction pond（2）Bottom, second aerator（2-1）
Aeration opening in T fonts be distributed.
6. the SBR water treatment facilities of a kind of intensified denitrification and dephosphorization according to claim 1, it is characterised in that described pre- anti-
Ying Chi（1）Middle microorganism group turns into polyP bacteria and denitrifying bacteria.
7. the SBR water treatment facilities of a kind of intensified denitrification and dephosphorization according to claim 1, it is characterised in that the master is anti-
Ying Chi（2）Middle microorganism group turns into polyP bacteria, denitrifying bacteria and nitrobacteria.
8. a kind of SBR method for treating water of intensified denitrification and dephosphorization based on any one of claim 1 ~ 7 described device, its feature exist
In comprising the following steps：
（1）Sewage after thickness grid filtration and clock-type sedimentation basin precipitation process is passed through into wastewater influent device（3）Into
Pre-reaction pond（1）, open the first aerator（1-5）, to entering pre-reaction pond（1）Sewage complete water inlet aeration, complete
Oxygen nitration reaction and aerobic suction phosphorus reaction；And in pre-reaction pond（1）After middle completion is to the on-line monitoring of sewage, then it is discharged into main reaction
Pond（2）In；
（2）Open the second aerator（2-1）, to entering main reaction pond（2）Sewage be persistently aerated and carry out extension aeration, complete
It is excessive to inhale phosphorus reaction；
（3）After completing excessive suction phosphorus reaction, the second aerator is closed（2-1）, open submersible agitator（2-2）, to main reaction
Pond（2）In sewage be stirred；Close submersible agitator（2-2）, staticly settle, complete anoxic denitrification denitrification reaction and detest
Oxygen releases phosphorus reaction；
（4）After completing anoxic denitrification denitrification reaction and anaerobic phosphorus release reaction, the supernatant after precipitation is passed through into discharging device（4）
Water decanter（4-2）Strain water and be expelled to ultraviolet disinfection pond, the sludge of precipitation passes through sludge discharge pipe（2-9）Discharge, static pressure are laggard
Enter sewage sludge storage pond.
A kind of 9. SBR method for treating water of intensified denitrification and dephosphorization according to claim 7, it is characterised in that step（3）
In, the time of the stirring is 0.5 hour.
A kind of 10. SBR method for treating water of intensified denitrification and dephosphorization according to claim 7, it is characterised in that the water inlet
Time of aeration, the time for extending aeration, the time staticly settled and strain pollutant concentration of the time of water in sewage and set
Put.
11. the SBR method for treating water of a kind of intensified denitrification and dephosphorization according to claim 7, it is characterised in that intaking
COD is 100 ~ 110mg/L, and influent ammonia nitrogen is 15 ~ 20mg/L, and when water inlet total phosphorus is 2 ~ 3mg/L, the time of the water inlet aeration is
45 ~ 60 minutes, the time for extending aeration was 15 ~ 20 minutes, and the time staticly settled is 0.5 ~ 1 hour, described to strain
The time of water is 1 hour.
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| CN108658233A (en) * | 2018-03-29 | 2018-10-16 | 安力斯（天津）环保设备制造有限公司 | A kind of Modified SBR treatment process suitable for decentralized type sewage processing |
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| CN102674537A (en) * | 2012-04-13 | 2012-09-19 | 北京华利嘉环境工程技术有限公司 | Reversed-order SBR (Sequencing Batch Reactor) water processing device and method for enhanced nitrogen removal |
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| CN207760186U (en) * | 2016-12-31 | 2018-08-24 | 华南理工大学 | A kind of SBR water treatment facilities of intensified denitrification and dephosphorization |
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| CN102674537A (en) * | 2012-04-13 | 2012-09-19 | 北京华利嘉环境工程技术有限公司 | Reversed-order SBR (Sequencing Batch Reactor) water processing device and method for enhanced nitrogen removal |
| CN104276660A (en) * | 2014-10-28 | 2015-01-14 | 成都绿源新创环保科技有限公司 | Sequencing-batch real-time control sewage treatment device |
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