CN207760186U - A kind of SBR water treatment facilities of intensified denitrification and dephosphorization - Google Patents
A kind of SBR water treatment facilities of intensified denitrification and dephosphorization Download PDFInfo
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- CN207760186U CN207760186U CN201720875080.4U CN201720875080U CN207760186U CN 207760186 U CN207760186 U CN 207760186U CN 201720875080 U CN201720875080 U CN 201720875080U CN 207760186 U CN207760186 U CN 207760186U
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Abstract
The utility model discloses a kind of SBR processing units 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 includes 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.Utility model device main equipment is only there are one batch-type batch reactor, no secondary settling tank, sludge recirculation system, regulating reservoir, primary sedimentation tank, and characteristics of compact layout, floor space be small, low cost；The utility model 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 utility model belongs to activated sludge biochemical method sewage treatment field, and in particular to the SBR water of intensified denitrification and dephosphorization
Processing unit.
Background technology
Chinese Ministry of Environmental Protection announces《2012 China Environmental State Bulletins》：River more than 30% and the underground water more than 50% do not reach
Mark.Once to national more than 700 rivers, the water resource quality of about 100,000 kilometers of rivers length is evaluated for Ministry of Water Resources, the result is that：
46.5% river length is contaminated, and water quality only reaches four, five classes；The 10.6% serious pollution of river length, water quality is to surpass five classes, water body
Use value is lost；90% or more urban waters are seriously polluted.Water pollution is dry from Zhi Liuxiang just from east to western development
Curtain coating is stretched, and is spread from city to rural area, from earth's surface to subsurface wastewater infiltration system, is spread from region to basin.China's water pollution mainly pollutes
Index is total nitrogen and total phosphorus.Accumulative whole year wastewater discharge is 482.4 hundred million tons, increases by 4.9% than last year.Wherein industrial wastewater is arranged
It is high-volume 221.1 hundred million tons, increases by 4.1% than last year, sanitary sewage discharge capacity is 261.3 hundred million tons, increases by 5.5% than last year.By
This is as it can be seen that the total environment situation in China is at present：" locally making moderate progress, whole still to deteriorate, foreground is troubling ".From now on
In a considerably long period, undoubtedly there will be local water pollution is even it is also possible to aggravate for water pollution.Water pollution has become
One big restraining factors of China's sustainable economic development, seriously threaten China's expanding economy.Therefore, sewage disposal effect is improved
Fruit and optimization sewage denitrification and dephosphorization, reducing sewage treatment plant's cost etc. has very great theoretical and practical significance.Institute
Reach higher sewage drainage standard to need to be improved existing activated sludge process.
SBR is sequencing batch reactor (Sequencing Batch Reactor Activated Sludge
Process abbreviation) is a kind of activated sludge sewage disposal technology run by intermittent aerating mode, and also known as batch-type is lived
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 ideal 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, just heavy, biology
Degradation, two functions such as heavy are in a pond, no sludge recirculation system.Exactly these particularity of SBR techniques make it have following advantages：a、
Ideal plug-flow process makes biochemical reaction motive force increase, and efficiency improves, and anaerobism in pond aerobic is in alternating state, purification effect
Fruit is good；B, operational effect is stablized, and sewage precipitates under ideal stationary state, needs the time short, efficient, effluent quality is good；
C, anti impulsion load has the processing water of delay in pond, has dilution, cushioning effect to sewage, be effective against water and organic dirt
Impact；D, each process 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, in reaction tank activated sludge bulking is effectively controlled there are DO, BOD5 concentration gradient；
G, SBR methods system itself is also suitable for combined type structure method, is conducive to the enlarging and transformation of waste water treatment plant；H, denitrogenation dephosphorizing,
The suitable control method of operation realizes aerobic, anoxic, anaerobic state alternating, has good Nitrogen/Phosphorus Removal；I, technological process
Simply, low cost.Main equipment is only there are one batch-type batch reactor, no secondary settling tank, sludge recirculation system, regulating reservoir, just
Heavy pond can also omit, characteristics of compact layout, small accommodation area.
Due to above-mentioned technical characterstic, SBR system has further widened the use scope of activated sludge process.With regard to recent technology
Condition, SBR system are more suitable for following situations：(1) industrial wastewater of Small Urban sanitary sewage and industrial enterprise, especially interval
Discharge and the larger place of changes in flow rate.(2) place of higher effluent quality, such as landscape excursion district, lake and bay are needed,
Organics removal is not only wanted, dephosphorization denitrogenation in water outlet is also required, prevents river and lake eutrophication.(3) place of water scarcity.
SBR system can carry out materializing strategy after biological treatment, need not increase facility, be convenient for the recycling of water.(4) land used is nervous
Place.(5) to the transformation etc. of built continuous flow sewage treatment plant.(6) it is very suitable for handling small water, the work of intermittent discharge
The improvement of industry waste water and dispersion point-source pollution.
However 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.
Utility model content
The utility model aim be for existing SBR water technologies there are the shortcomings that, a kind of strengthened denitrification is provided and is removed
The SBR water treatment facilities of phosphorus.
To achieve the above object, the technical solution adopted in the utility model is as follows.
A kind of SBR water treatment facilities of intensified denitrification and dephosphorization, it is anti-including 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 conducive to the mixing into the ponds SBR sewage and interior backflow mixed liquor, buffers the impact to biochemical system,
And monitor concentration into water pollutant on-line, water inlet pollutant concentration increases suddenly, then can increase sewage in pre-reaction pond
Residence time slows down impact of the water to system；
The front end in the pre-reaction pond connects wastewater influent device, and the rear end in pre-reaction pond is by being arranged valvular pipeline
Main reaction pond is connected, the rear end in the main reaction pond connects discharging device；The pre-reaction pond also by sludge return pipe with
Main reaction pond is connected to；
It is provided with the first aerator in the pre-reaction pond；Be additionally provided in the pre-reaction pond the first PH sensor,
First dissolved oxygen sensor, the first temperature sensor and the first liquid level sensor；First PH sensor, the first dissolved oxygen pass
Sensor, the first temperature sensor and the first liquid level sensor connect with corresponding PLC and are controlled by computer software respectively；
It is provided with the second aerator and the second submersible agitator in the main reaction pond；It is also set up in the main reaction pond
There are the second PH sensor, the second dissolved oxygen sensor, second temperature sensor, the second aeration sensor, the second liquid level sensor
With redox sensor；Second PH sensor, the second dissolved oxygen sensor, second temperature sensor, the second aeration pass
Sensor, the second liquid level sensor and redox sensor connect with corresponding PLC and are 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, the bottom of pond in main reaction pond is arranged in second aerator, 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 in air inlet pipe.
Further, the discharging device is to connect water decanter by outlet pipe, and flowing water Valve is provided on 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 dross from entering；
The discharging device front end is provided with overflow mechanism, and the overflow mechanism includes overflow wall and adjusting metallic plate, institute
Overflow wall is stated to be located in main reaction pond and on the inner wall fixed to main reaction pond；The adjusting metallic plate is fixed on overflow wall
On medial surface, 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 in the bottom in main reaction pond, and described
The aeration opening of two aerators is distributed in T fonts, is conducive to SBR main reactions pond and is in complete oxygenation state.
Further, microorganism group becomes polyP bacteria (PAO) and denitrifying bacteria in the pre-reaction pond.
Further, microorganism group becomes 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, includes the following steps：
(1) will be entered by wastewater influent device by the sewage of thickness grid filtration and clock-type sedimentation basin precipitation process pre-
Reaction tank opens the first aerator, and the sewage to entering pre-reaction pond completes water inlet aeration, completes aerobic nitrification reaction and becomes reconciled
Oxygen inhales phosphorus reaction；And after being completed to the on-line monitoring of sewage in pre-reaction pond, then it is discharged into main reaction pond；
(2) the second aerator is opened, the sewage to entering main reaction pond, which is persistently aerated, carries out extension aeration, completes excessive
Inhale phosphorus reaction；
(3) after completing excessive suction phosphorus reaction, the second aerator is closed, submersible agitator is opened, in main reaction pond
Sewage is stirred；Submersible agitator is closed, is staticly settled, anoxic denitrification denitrification reaction and anaerobic phosphorus release reaction are completed；
(4) after completing anoxic denitrification denitrification reaction and anaerobic phosphorus release reaction, the supernatant after precipitation is filled by being discharged
The water decanter set strains water and is expelled to ultraviolet disinfection pond, and the sludge of precipitation after the discharge of sludge discharge pipe, static pressure by entering sludge storage
Deposit pond.
Further, in step (3), the time of the stirring is 0.5 hour.
Further, time, the time for extending aeration, the time staticly settled and the time for straining water of the water inlet aeration
According to the pollutant concentration setting in sewage.
Further, influent COD be 100~110mg/L, influent ammonia nitrogen be 15~20mg/L, water inlet total phosphorus be 2~
When 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 setting precipitation is 0.5~1 hour, and the time for straining water is 1 hour.
Compared with prior art, the utility model has the following advantages that and advantageous effect：
(1) the utility model method by adjusting water inlet sequential and increase aeration duration can effective denitrogenation dephosphorizing, together
Shi Liyong carbon sources are few to breach low C/N sewage water denitrifications efficiency even without the high-efficiency biological denitrification that additional carbon is realization sewage
The problem being difficult to improve, and water outlet ammonia nitrogen and total phosphorus are below《Urban wastewater treatment firm pollutant emission standard》GB18918-
2002 level-one A standards；
(2) the utility model method uses on line real-time monitoring, identical in influent load, controls each work
The reaction time of sequence and the maximized carbon source being utilized in sewage, improve the treatment effeciency of sewage and improve into water
Organic loading, SVI values are relatively low, and sludge is easy to precipitate, and do not generate sludge bulking phenomenon, and technological process is simple, operation cost is low；
(3) only there are one batch-type batch reactor, no secondary settling tank, sludge reflux systems for utility model device main equipment
System, regulating reservoir, primary sedimentation tank, characteristics of compact layout, floor space be small, low cost；
(4) the utility model method uses quiescent setting, and outlet effect is good, detest/and anoxic and aerobic process alternately occur, mud
Age is short, active height, there is good Nitrogen/Phosphorus Removal；
(5) since polyP bacteria must carry out releasing phosphorus under anaerobic, and enter next stage progress adequately aerobic suction
Phosphorus, the sedimentation time in the utility model method is longer, is conducive to the foundation of anaerobism dephosphorization environment；
(6) utility model device setting pre-reaction pond, anti impulsion load have the processing water of delay in pond, have to sewage
Dilution, cushioning effect, are effective against the impact of water and organic dirt.
Description of the drawings
Fig. 1 is the structural schematic diagram of the backward SBR water treatment facilities of strengthened denitrification in specific implementation mode；
Fig. 2 is the complete process flow figure of the backward SBR water process of strengthened denitrification in specific implementation mode；
Fig. 3 is the ammonia nitrogen removal design sketch of SBR water process of the embodiment 1 based on utility model device；
Fig. 4 is the COD removal effect figures of SBR water process of the embodiment 1 based on utility model device；
Fig. 5 is the removal effect figure of the total phosphorus of SBR water process of the embodiment 1 based on utility model device.
Specific implementation mode
Below in conjunction with attached drawing and embodiment, the utility model is described in further detail, but the utility model be not limited to it is following
Embodiment.
A kind of SBR water treatment facilities structural schematic diagram 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 reaction tanks include 1 He of pre-reaction pond
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 being arranged valvular pipeline
Main reaction pond is connected, the rear end in connection main reaction pond 2, main reaction pond 2 connects discharging device 4；Discharging device 4 and ultraviolet disinfection pond
Connection；Pre-reaction pond 1 is also connected to by sludge return pipe with main reaction pond 2；
Wastewater influent device 3 is intake pump 3-1 by water inlet pipe 3-2 connection pre-reactions pond 1, and is arranged on water inlet pipe 3-2
There is inlet valve 3-3；
Discharging device 4 is and flowing water Valve 4-3 to be provided on outlet pipe 4-1 by outlet pipe 4-1 connection water decanter 4-2；
4 front end of discharging device is provided with overflow mechanism, and overflow mechanism includes overflow wall and adjusts metallic plate, and overflow wall is located at main reaction pond
In 2 and on the inner wall fixed to main reaction pond 2；It adjusts metallic plate to be fixed on the medial surface of overflow wall, and adjusts metallic plate
Top surface be higher than the overflow wall top surface；
The first aerator 1-5 is provided in pre-reaction pond 1；Be additionally provided in pre-reaction pond 1 first PH sensor 1-1,
First dissolved oxygen sensor 1-2, the first temperature sensor 1-3 and the first liquid level sensor 1-4；First PH sensor 1-1, first
Dissolved oxygen sensor 1-2, the first temperature sensor 1-3 and the first liquid level sensor 1-4 are connect simultaneously with corresponding PLC respectively
It is controlled by computer software；
The second aerator 2-1 and the second submersible agitator 2-2 are provided in main reaction pond 2；It is also set in main reaction pond 2
Be equipped with the second PH sensor 2-3, the second dissolved oxygen sensor 2-4, second temperature sensor 2-5, the second aeration sensor 2-6,
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 sensor 2-5, the second aeration sensor 2-6, the second liquid level sensor 2-7 and redox sensor 2-8 respectively with respectively
Self-corresponding PLC connections are simultaneously controlled by computer software；
The bottom of pond in main reaction pond 2 is arranged in second aerator 2-1, and aerator includes air blower and aeration head, air blast
Machine is attached with aeration head by air inlet pipe, and air intake valve is provided in 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 exposes
Device of air 2-1 and the second submersible agitator 2-2 is arranged in the bottom in main reaction pond 2, and the aeration opening of the second aerator 2-1 is in T
Font is distributed；
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, the single ponds SBR are carried out using above-mentioned apparatus
Volume is 150m3, overall length 12m, width 5m, high 2.5m, available depth 2m substitute space point using the mode of operation of time segmentation
The mode of operation cut, unstable biochemical reaction substitute stable state biochemical reaction, stand ideal precipitation and substitute traditional dynamic precipitation.
The process flow chart of the SBR water process of intensified denitrification and dephosphorization will be as shown in figure 3, first will be pretreated useless by grid
Water is promoted into sump by submersible sewage pump (lift pump room), accelerates the precipitation of the grains of sand, the sewage of sedimentation basin through clock-type setting pot
Carry out sewage disposal into utility model device, treated water by ultraviolet disinfection pond or other disinfection way disinfection
It is discharged after processing, sludge storage pool is entered after excess sludge static pressure, disposed finally by sludge outward transport is carried out between sludge dewatering.
Wastewater influent parameter is：Influent COD is 100mg/L, and influent ammonia nitrogen 15mg/L, water inlet total phosphorus is 2mg/L.
It is as follows：
(1) by the sewage after thickness grid filtration and clock-type sedimentation basin precipitation process by wastewater influent device 3 into
Enter pre-reaction pond 1, open the first aerator 1-5, the sewage to entering pre-reaction pond 1 completes water inlet aeration, completes aerobic nitre
Change reaction and aerobic suction phosphorus reaction；And after being completed to the on-line monitoring of sewage in pre-reaction pond 1, then it is discharged into main reaction pond 2；
The time of water inlet aeration is 45 minutes；
(2) the second aerator 2-1 is opened, the sewage to entering main reaction pond 2, which is persistently aerated, to carry out extending 15 points of aeration
Clock completes excessive suction phosphorus reaction；
(3) after completing excessive suction phosphorus reaction, the second aerator 2-1 is closed, submersible agitator 2-2 is opened, to main reaction
Sewage in pond 2 is stirred；Submersible agitator 2-2 is closed, is staticly settled 1 hour；Complete anoxic denitrification denitrification reaction and
Anaerobic phosphorus release reacts；
(4) after completing anoxic denitrification denitrification reaction and anaerobic phosphorus release reaction, the supernatant after precipitation is filled by being discharged
It sets 4 water decanter 4-2 to strain water and be expelled to ultraviolet disinfection pond, it is 1 hour to strain the water time, and the sludge of precipitation passes through sludge discharge pipe 2-
Enter sewage sludge storage pond after 9 discharges, static pressure.
Implementation result
1, 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 with ammonia
Based on nitrogen, wherein water inlet highest ammonia nitrogen concentration is 21.31mg/L, minimum ammonia nitrogen concentration of intaking is 7.543mg/L, average to intake
Ammonia nitrogen concentration is 14.345mg/L；Into crossing in aerobic tank activated sludge after the nitrification of nitrobacteria, water outlet ammonia nitrogen is most highly concentrated
Degree is 0.581mg/L, and minimum ammonia nitrogen concentration is 0.106mg/L, and it is 0.27mg/L to be averagely discharged ammonia nitrogen concentration, average ammonia nitrogen removal
Rate is 98.12%, is much better than《Urban wastewater treatment firm pollutant emission standard》Level-one A standards.
2, the removal effect of COD
COD is the carbon source that microorganism grows in sewage treatment process, when carrying out the denitrification dephosphorization function of sewage, denitrification
Denitrifier belongs to heterotroph facultative anaerobic bacteria, and in anoxia condition, denitrification is carried out by electron donor and nutrient source of organic carbon
Reaction, and realize the second that the polyP bacteria of dephosphorization function needs active absorption to be become by anaerobic fermentation and acid production bacterium conversion Organic substance in water
Sour glycosides, this can also consume carbon source.
The COD removal effects of sewage are as shown in figure 5, as seen from Figure 5, at the SBR water based on utility model device
Reason there is extraordinary removal effect, carbon source therein efficiently to be utilized COD.Into COD in the sewage of device
Concentration is relatively low, wherein water inlet highest a concentration of 161mg/L of COD, a concentration of 47mg/L of lowest COD of intaking, average inlet COD concentration
For 79mg/L, water outlet COD maximum concentrations are 24mg/L, a concentration of 9mg/L of lowest COD, and it is a concentration of to be averagely discharged COD
16.5mg/L, average removal rate 79.1%, is much better than《Urban wastewater treatment firm pollutant emission standard》Level-one A standards.
3, the removal effect of total phosphorus
The total phosphorus removal effect of sewage, the SBR water process based on utility model device have total phosphorus extraordinary
Removal effect.It is larger into total phosphorus concentration fluctuation in the sewage of device, wherein water inlet highest total phosphorus concentration is 1.77mg/L, water inlet
Minimum total phosphorus concentration is 0.634mg/L, and total phosphorus concentration of averagely intaking is 1.04mg/L, and water outlet total phosphorus maximum concentration is
0.492mg/L, minimum total phosphorus concentration are 0.217mg/L, and it is 0.381mg/L to be averagely discharged total phosphorus concentration, and average removal rate is
63.4%, reach《Urban wastewater treatment firm pollutant emission standard》Level-one A standards.
The utility model denitrogenation dephosphorizing SBR techniques have target contaminant COD, ammonia nitrogen, total phosphorus and go well in summary
Except effect, wherein being averagely discharged a concentration of 16.5mg/L of COD, it is 0.27mg/L to be averagely discharged ammonia nitrogen concentration, is averagely discharged total phosphorus
A concentration of 0.381mg/L, items water outlet reach and are better than《Urban wastewater treatment firm pollutant emission standard》Level-one A standards.
Claims (5)
1. a kind of SBR water treatment facilities of intensified denitrification and dephosphorization, which is characterized in that include that wastewater influent fills successively by water (flow) direction
Set (3), sbr reactor pond and discharging device (4)；The sbr reactor pond includes pre-reaction pond (1) and main reaction pond (2)；
The front end connection wastewater influent device (3) of the pre-reaction pond (1), the rear end of pre-reaction pond (1) is 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) is also connected to by sludge return pipe with main reaction pond (2)；
It is provided with the first aerator (1-5) in the pre-reaction pond (1)；It is additionally provided with the first PH in the pre-reaction pond (1)
Sensor (1-1), the first dissolved oxygen sensor (1-2), the first temperature sensor (1-3) and 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) and the first liquid level sensor
(1-4) connect with corresponding PLC and is controlled by computer software respectively；
It is provided with the second aerator (2-1) and the second submersible agitator (2-2) in the main reaction pond (2)；The main reaction
The second PH sensor (2-3), the second dissolved oxygen sensor (2-4), second temperature sensor (2-5), the are additionally provided in pond (2)
Two aeration sensors (2-6), the second liquid level sensor (2-7) and redox sensor (2-8)；Each sensor respectively with PLC
It connects and is controlled by computer；The bottom of the main reaction pond (2) is additionally provided with sludge discharge line (2-9).
2. a kind of SBR water treatment facilities of intensified denitrification and dephosphorization according to claim 1, which is characterized in that the sewage
Water feed apparatus (3) is that intake pump (3-1) connects pre-reaction pond (1) by water inlet pipe (3-2), and is provided on water inlet pipe (3-2)
Inlet valve (3-3).
3. a kind of SBR water treatment facilities of intensified denitrification and dephosphorization according to claim 1, which is characterized in that the water outlet
Device (4) is to connect water decanter (4-2) by outlet pipe (4-1), and flowing water Valve (4-3) is provided on outlet pipe (4-1)；
Discharging device (4) front end is provided with overflow mechanism, and the overflow mechanism includes overflow wall and adjusting metallic plate, the overflow
Wall is located in main reaction pond (2) and on the inner wall fixed to main reaction pond (2)；The adjusting metallic plate is fixed on overflow wall
On medial surface, and the top surface for adjusting metallic plate is higher than the top surface of the overflow wall.
4. a kind of SBR water treatment facilities of intensified denitrification and dephosphorization according to claim 1, which is characterized in that described second
The bottom of pond in main reaction pond (2) is arranged in aerator (2-1), and 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 in air inlet pipe.
5. a kind of SBR water treatment facilities of intensified denitrification and dephosphorization according to claim 1, which is characterized in that described pre- anti-
The first aerator (1-5) in Ying Chi (1) is connected to the end of the water inlet pipe (3-2) in wastewater influent device (3)；Described
Two aerators (2-1) and the second submersible agitator (2-2) are arranged in the bottom of main reaction pond (2), second aerator
The aeration opening of (2-1) is distributed in T fonts.
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| CN107434333A (en) * | 2016-12-31 | 2017-12-05 | 华南理工大学 | The SBR water treatment facilities and method of a kind of intensified denitrification and dephosphorization |
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| CN107434333A (en) * | 2016-12-31 | 2017-12-05 | 华南理工大学 | The SBR water treatment facilities and method of a kind of intensified denitrification and dephosphorization |
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