CN208732851U - A kind of MBBR high standard sewage disposal system - Google Patents
A kind of MBBR high standard sewage disposal system Download PDFInfo
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- CN208732851U CN208732851U CN201821015073.8U CN201821015073U CN208732851U CN 208732851 U CN208732851 U CN 208732851U CN 201821015073 U CN201821015073 U CN 201821015073U CN 208732851 U CN208732851 U CN 208732851U
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Abstract
The utility model discloses a kind of MBBR high standard sewage disposal systems, belong to technical field of sewage.Which solve sewage treatment plant's treatment process water outlet TN concentration height traditional in the prior art, the problem that integrated level is low, load is low, the removal effect of and nitrogen high to carbon source demand, phosphorus, SS are general.It includes anaerobic zone, one area of anoxic, 2nd area of anoxic, flocculation zone, settling zone, biomembrane area, buffer area, denitrification filter pool area, exhalant region etc., pass through suspending carrier filling rate, the parameter setting of DO and denitrification filter pool area carbon source dosage, the setting for backwashing frequency etc. in the control of adjustment, sludge concentration to reflux and biomembrane area.Settling zone is set to the middle section of biochemical treatment by the characteristics of using Denitrifying Phosphate Accumulating Organisms, and biomembrane process is coupled with denitrification filter pool technique, with integrated level height, synchronous denitrification dephosphorizing and saving carbon source, water outlet nitrogen, phosphorus, SS concentration are low, and load is high, runs easy to operate.
Description
Technical field
The utility model relates to MBBR technical field of sewage, and in particular to a kind of MBBR sewage disposal system.
Background technique
The mark transformation that mentions of raising with country to sewage plant treatment plant discharge standard, existing sewage treatment plant is compeled in eyebrow
Eyelash, and proposing the problem commonly encountered in mark transformation is the up to standard of total nitrogen, meanwhile, in the case where total nitrogen is up to standard, such as how most pass through
It is up to standard that the mode of Ji realizes that other indexs also synchronize.Conventional sewage treatment plant's denitrification dephosphorization technique, has been difficult to cope with current
Water quality requirement, and traditional sewage treatment plant's two stage treatment process flow, volumetric loading is low, takes up a large area.
Using MBBR (Moving Bed Biofilm Reactor, moving bed biofilm reactor) technique, to reactor
In add a certain number of suspending carriers, as the carrier of attached growth of microorganisms, due on carrier biomembrane not by spoil disposal
Engineering sludge age limitation, can be enriched with more how long sludge age flora, especially nitrifier, obtain efficient Ammonia Nitrification effect, load
Height, water outlet ammonia nitrogen concentration are low.And also there is MBBR land occupation to save, capital cost is low, and the advantages that flexibly simple is built in transformation.At present
MBBR technique is mostly combined with activated sludge, is coexisted in a pond body, and control condition mutually restricts, and cannot play MBBR technique
Maximum effect.
The essence that denitrification filter pool handles sewage is the dirt that absorbs, degrades using the metabolic activity of microorganisms various on filler
Substance is contaminated, purpose of purifying the water quality is reached.In the environment of anoxic, anti-nitration reaction is carried out to the nitrogen in sewage, is degraded simultaneously
Partial organic substances in sewage.In this grade of filter tank, supplied using facultative bacteria (denitrifying bacterium) using degradation of organic substances as electronics
Body carries out denitrification denitrogenation using nitrate nitrogen as electron acceptor.Utilization of carbon source rate is high, saves operating cost, and water outlet TN can stablize
Control is in 5mg/L or less.Denitrification filter pool has both filtering function, filtration of the waste water through filter material, and water outlet SS is lower than 5mg/
L。
At present there are also the technology mode that MBBR suspending carrier technique is combined with denitrification filter pool, specific research has:
106396102 A of CN discloses a kind of efficient wastewater treatment equipment and processing method, which includes MBBR reaction
Device, solid carbon source region, denitrification filter pool area and buffer area, the device pass through the combination of MBBR technique and denitrification filter pool, reach
Efficient denitrification, but the device is mainly for the processing of industrial wastewater, and is discharged COD and is difficult to control.
Utility model content
The purpose of this utility model is to provide a kind of MBBR high standard sewage disposal system, break factory two at existing sewage
Grade treatment process is discharged the highly concentrated status of TN, and with nitrogen, phosphorus, SS high treating effect, aqueous concentration is low, utilization of carbon source rate
The advantages that height, level of integrated system is high, and statistics load is high, and land occupation is few.
To achieve the above object, the technical issues of overcoming needed for the utility model has:
How to be arranged by reasonable functional area and flowed back and is arranged to solve due to being limited to VFA content in water-inlet carbon source
And nitrogen denitrification to the competition of carbon source and caused by dephosphorization phosphor-removing effect difference problem；And the process of aerobic phosphorous accumulating is allowed to exist
Anoxic zone containing molecular oxygen nitrate nitrogen can be realized, that is to say, that the characteristics of how utilizing DPB, it can be by lacking
Behind oxygen area, the phosphorus element in sewage is transferred in sludge, allows to carry out muddy water point in anoxic section rear end, that is, settable sedimentation basin
From without being arranged after aerobic tank.
In order to solve the above technical problems, adopting the technical scheme that
A kind of MBBR high standard sewage disposal system comprising go to rear sequentially connected anaerobic zone certainly, one area of anoxic, lack
2nd area of oxygen, flocculation zone, settling zone, biomembrane area, buffer area, denitrification filter pool area and exhalant region, adjacent region is by partition wall point
Every being provided with communication port on the partition wall, adjacent region keeps connection by opening the communication port；
The anaerobic zone is connected with water inlet pipe, and the exhalant region is connected with outlet pipe, treatment sewage through it is described into
Water pipe enters, and is discharged after processing from the outlet pipe；
The flocculation zone is connected with chemical feed pipe one, and the settling zone bottom is connected with mud return line one and residue is dirty
Mud delivery pipe, the other end of the mud return line one are connected to one area of anoxic, and the excess sludge delivery pipe is used for
Excess sludge is discharged；
Be connected with nitrification liquid return pipe between the buffer area and one area of anoxic, the anaerobic zone with it is described
2nd area of anoxic between be connected with mud return line two；
The denitrification filter pool area is connected with chemical feed pipe two, and the exhalant region is connected with escape pipe；
As a preferred embodiment of the utility model, in the anaerobic zone, one area of anoxic, 2nd area of anoxic and flocculation zone
It is inside respectively arranged with blender, suspending carrier, aerator one are disposed in the biomembrane area and intercepts sieve, described
Denitrification filter pool area is disposed with water-bearing layer, quartz sand filter media floor, supporting layer, filter block, aerator two and recoil from top to bottom
Wash cloth water pipe, is provided with backwashing pump between the exhalant region and the denitrification filter pool area, the backwash water distributor with
The backwashing pump connection.
As another preferred embodiment of the utility model, the mud return line one, nitrification liquid return pipe and sludge
Water pump is provided on return pipe two.
Further, the interception sieve be arranged in the communication port between the biomembrane area and the buffer area it
Before, it is porous plate.
Further, the aerator one is oxygenic aeration device, and the aerator two is backwash aerator.
Further, the blender in flocculation zone is vertical stirrer.
The utility model is noteworthy characterized by, and using DPB (Denitrifying Phosphate Accumulating Organisms), in anaerobic phosphorus release and absorbs carbon source storage
After energy, it can use the characteristics of nitrate excessively inhales phosphorus instead of oxygen as electron acceptor, the process of aerobic phosphorous accumulating allowed to contain
The anoxic zone of molecular oxygen nitrate nitrogen can be realized, that is, the characteristics of utilizing DPB, can be behind anoxic zone, and sewage
In phosphorus element be transferred in sludge, allow to carry out mud-water separation in anoxic section rear end, that is, settable settling zone, without being arranged
Behind aerobic zone.
Serve mud-water separation settling zone be located at anoxic zone after, the middle section of entire biochemical reaction, and unconventional biochemistry
Section end (aeration zone).The biomembrane area that supernatant enters behind settling zone, inactive sludge in biomembrane area, using on carrier
The microbial film of enrichment nitrifies ammonia nitrogen, realizes in an Installed System Memory in two kinds of sludge concentrations, anaerobic zone, anoxic zone
Interior sludge concentration is high, carries out the denitrification for releasing phosphorus, poly- phosphorus and nitrate nitrogen, plays in the biomembrane area of nitrification sludge concentration then
It is very low.
Biomembrane area is followed by denitrification filter pool, by it is outer throwing carbon source and be enriched in filter material surface denitrifying bacterium effect,
Realize the low concentration discharge of water outlet TN.
Advantageous effects brought by the utility model are as follows:
1) biological phosphor-removing effect is good, and anaerobic zone water inlet includes the mixed liquor of total water inlet and reflux from 2nd area of anoxic, anoxic two
The mixed liquor of area end, due to have passed through sufficient denitrification phosphorus-collecting reaction, nitrate concentration is low, after being back to anaerobic zone, no
The anaerobic phosphorus release energy storage for influencing polyP bacteria, to more fully ensure that the effect of biochemical dephosphorization；
2) denitrification volumetric loading in anoxic zone is high, is set to process section end different from the settling zone of traditional two stage treatment technique
End, the settling zone of the utility model sewage disposal system are set among process section, non-final water outlet are discharged, without having to worry about entrance
The sludge concentration of settling zone is excessively high to cause settling zone water outlet SS exceeded, therefore can permit anoxic zone with high sludge concentration,
Under identical sludge loading, volumetric loading is higher；
3) carbon source, the energy make full use of, and a carbon is multi-purpose, first the reflux setting of the utility model sewage disposal system, can
The characteristics of using DPB Denitrifying Phosphate Accumulating Organisms synchronous denitrifying phosphorus removal, poly- phosphorus is using nitrate nitrogen as electron acceptor, a carbon two
With.In addition, anoxic zone high concentration sludge can more utilize the endogenous carbon source of system, in water-inlet carbon source conducive to internal carbon source precipitation
When insufficient, the non-use of additional carbon is saved.And after settling zone is located at anoxic zone, sludge and without aerobic region avoids carbon source
It by aerobic degradation, can enter in sludge, improve resource, the energy recovery value of sludge, and what poly- phosphorus utilized is compound state
Oxygen NO3 reduces the demand to dissolved oxygen, reduces energy consumption；
4) sufficiently, load is high, and behind settling zone, supernatant enters biomembrane area, since suspending carrier is blocked by sieve for nitrification
It cuts in fixed area, is conducive to the attachment and growth of the longer microorganism of sludge age, especially nitrosation Pseudomonas and Nitrobacter, nitre
It is good to change effect, can sufficiently nitrify the ammoniacal nitrogen in sewage；
5) a kind of microbial morphology of biomembrane on suspending carrier, operational management and regulation letter are only existed in biomembrane area
It is single, and load height is nitrified, meanwhile, using the multilayered structure of biomembrane, provide favorably for synchronous nitration and denitrification
Condition enhances the removal effect to nitrogen；
6) load is high, and land occupation saves, using the utility model sewage disposal system, the sludge concentration of anaerobic zone and anoxic zone
Height, biomembrane area rely on the nitrification effect of carrier high-efficiency, and volumetric loading is all very high, save pool capacity land occupation, and level of integrated system is high,
Although having good removal effect to each index, land occupation is saved very much；
7) sewage plant is widely used in create, be transformed, integrated equipment for sewage treatment.
Detailed description of the invention
The utility model is described further with reference to the accompanying drawing:
Fig. 1 is the utility model MBBR high standard sewage disposal system structure diagram；
In figure:
C1-anaerobic zone, one area of C2-anoxic, 2nd area of C3-anoxic, C4-flocculation zone, C5-settling zone, C6-biomembrane
Area, the mono- denitrification filter pool area C7-buffer area, C8, mono- exhalant region of C9, S1-anaerobic zone blender, the stirring of one area of S2-anoxic
Device, two area's blender of S3-anoxic, S4-flocculation zone blender, S5-suspending carrier, S6-biomembrane area aeration, S7-interception
Sieve, S8-quartz sand filter media, mono- filter block of S9-supporting layer, S10, S11 mono- backwash water distributor, and S12 mono- backwashes aerator,
P1-water inlet pipe, P2-outlet pipe, P3-chemical feed pipe one, mono- chemical feed pipe two of P4, mono- escape pipe of P5, P6-mud return line one,
P7-excess sludge delivery pipe, P8-nitrification liquid return pipe, P9-mud return line two, B1-sludge reflux pump two, B2-dirt
Mud reflux pump one, B3-nitrification liquid reflux pump (water pump), mono- backwashing pump of B4.
Specific embodiment
The utility model proposes a kind of MBBR high standard sewage disposal system, the advantages of in order to make the utility model, skill
Art scheme is clearer, clear, elaborates combined with specific embodiments below to the utility model.
" high standard " in MBBR high standard sewage disposal system referred to herein refers to COD concentration≤30mg/L, BOD concentration
≤ 6mg/L, TN concentration≤10mg/L, ammonia nitrogen concentration≤1.5mg/L.
It elaborates in conjunction with Fig. 1 to the utility model MBBR sewage disposal system, goes to rear (from left to right) certainly successively
Including anaerobic zone C1, one area C2 of anoxic, two area C3 of anoxic, flocculation zone C4, settling zone C5, biomembrane area C6, buffer area C7, anti-nitre
Change filter tank area C8, exhalant region C9 and related process pipeline, adjacent region to be separated by partition wall, communication port be provided on partition wall,
Adjacent region keeps connection by opening communication port, and related process pipeline includes water inlet pipe P1, outlet pipe P2, chemical feed pipe one
P3, chemical feed pipe two P4, escape pipe P5, one P6 of mud return line, excess sludge delivery pipe P7, nitrification liquid return pipe P8, sludge return
Two P9 of flow tube.Wherein, water inlet pipe P1 is communicated with anaerobic zone front end；Outlet pipe P2 is communicated with exhalant region；One P3 of chemical feed pipe and flocculation
Area's water inlet end communicates；Two P4 of chemical feed pipe is identical as denitrification filter pool area water inlet end；Escape pipe P5 is identical as exhalant region；Sludge reflux
One one end P6 of pipe is communicated with settling zone bottom, and the other end is communicated with one area front end of anoxic；Excess sludge delivery pipe P7 and settling zone
Bottom communicates；Nitrification liquid one end return pipe P8 is communicated with exhalant region drip pan bottom, and the other end is communicated with one area front end of anoxic；It is dirty
Two one end P9 of mud return pipe is communicated with two area end of anoxic, and the other end is communicated with anaerobic zone front end；One P6 of mud return line, nitrification
It is equipped with water pump on liquid return pipe P8, two P9 of mud return line, sludge reflux pump respectively is set on one P6 of mud return line
Nitrification liquid reflux pump B3 is arranged in one B2 on nitrification liquid return pipe P8, and sludge reflux pump two is arranged on two P9 of mud return line
B1；Backwashing pump B4 is set between exhalant region and denitrification filter pool area.
Be mounted on blender in above-mentioned anaerobic zone, one area of anoxic, 2nd area of anoxic, flocculation zone, i.e. anaerobic zone blender S1,
One area blender S2 of anoxic, two area blender S3 of anoxic, flocculation zone blender S4, specific installation site those skilled in the art can
In conjunction with learning herein, anaerobic zone, one area of anoxic, 2nd area of anoxic blender be the blender of fluidization, assurance function area
Interior activated sludge does not settle, usually low-speed agitator；Blender in flocculation zone has been mixed flocculation medicament and dirt
The blender of mud mixed liquor need to allow flocculation medicament to be sufficiently mixed with mud mixed liquid, and form wadding body, and revolving speed is very fast, preferably
Vertical mixing.
It is disposed with suspending carrier, aerator one, biomembrane area aeration S6 in biomembrane area and intercepts sieve S7, intercepts sieve
Net is arranged in front of the communication port between biomembrane area and buffer area, is porous plate.Suspending carrier S5 is that a kind of plastics system is filled out
Expect equipment, can add in reactor, without fixing, the biomembrane that microorganism is constituted can lead to apposition growth on its surface
The microorganism crossed on biomembrane degrades to the pollutant in water, with water body similar density before and after biofilm, makes it can be in water
Middle suspension.Suspending carrier filling rate is suspending carrier in biomembrane area, the total volume under natural packing, with reactor volume
Ratio.
Aeration is oxygenic aeration in above-mentioned biomembrane area, dissolution required for providing degradation of contaminant in the process for microorganism
Oxygen, and power is provided for the fluidisation of suspending carrier.
Above-mentioned interception sieve is stainless steel perforated plate production, and eye diameter is less than the ruler diameter of floating stuffing, can intercept outstanding
Float carrier is in fixed region；
Above-mentioned flocculation zone chemical feed pipe one, is connected with medicine storing pot one, can add the chemistry such as flocculant, coagulant for flocculation zone
Medicament assists the removal of the flocculating setting and phosphorus of sludge.
Be provided in denitrification filter pool area quartz sand filter media floor, supporting layer S9, filter block S10, backwash water distributor S11 and
Aerator two, exhalant region are provided with escape pipe, outlet pipe, catch basin, recoil are provided between denitrification filter pool area and exhalant region
Wash pump.Quartz sand filter media S8 is a kind of fixed type biological filler, and surface biological film gathering denitrifying bacterium removes the nitric acid in water inlet
Salt nitrogen and nitrite nitrogen realize water outlet TN qualified discharge, and preferably aerator two is backwash aerator S12.
Above-mentioned denitrification filter pool area chemical feed pipe two, is connected with medicine storing pot two, can add carbon source for denitrification filter pool area, auxiliary
Help the removal of TN.
Above-mentioned catch basin is the local Pool body design of exhalant region, mixed liquor can be allowed to collect and in a region storing,
And guarantee certain capacity, convenient for being discharged or linking pipeline.
Using above-mentioned MBBR high standard sewage disposal system, MBBR high standard sewage treatment process, specific steps are proposed are as follows:
Water inlet passes sequentially through anaerobic zone C1, one area C2 of anoxic, two area C3 of anoxic, flocculation zone C4, settling zone C5, biomembrane area
C6, buffer area C7, denitrification filter pool area C8, exhalant region C9, realize the removal of pollutant；Flow of inlet water is Q, and settling zone sludge is logical
It crosses one P6 of mud return line and is back to one Qu Qianduan of anoxic, one regurgitant volume of mud return line is 0.8-1.2Q, and excess sludge passes through
Excess sludge delivery pipe P7 discharge；Exhalant region mixed liquor is back to one Qu Qianduan of anoxic, nitrification liquid by nitrification liquid return pipe P8
Regurgitant volume is 1-3Q；Two area's mixed liquor of anoxic is back to anaerobic zone front end by two P9 of mud return line of two area end of anoxic,
Two regurgitant volume of mud return line is the average value of mud return line one regurgitant volume and nitrification liquid regurgitant volume.
Above-mentioned anaerobic zone sludge concentration is 3000-5000mg/L, and one area of anoxic, two area's sludge concentration of anoxic are 6000-
8000mg/L；Biomembrane area sludge concentration < 500mg/L.
Suspending carrier filling rate is 30-67% in above-mentioned biomembrane area, and biomembrane area DO is in 1-8mg/L.Work as filling rate
When 30%-50%, biomembrane area gas-water ratio 5:1 to 8:1；As filling rate 50%-67%, biomembrane area gas-water ratio 7:1 to 10:1.
Above-mentioned denitrification filter pool area is periodically backwashed, and backwash is washed by air purge, air water, washes joint backwash, instead
Flushing water overflows back buffer area, is handled again.
The processing step handled using the utility model MBBR high standard sewage disposal system is as follows:
1) control biomembrane area DO is in 3-5mg/L；
2) when biomembrane area is discharged ammonia nitrogen > 2mg/L, biomembrane area DO10-20% is improved, until biomembrane area is discharged ammonia
Nitrogen≤2mg/L, DO is constant at this time for holding；
3) when biomembrane area is discharged TN > 8mg/L, biomembrane area DO10-20% is reduced, until biomembrane area water outlet TN≤
8mg/L, DO is constant at this time for holding；
4) step 2) and step 3) are repeated, guarantees that biomembrane area is discharged ammonia nitrogen≤2mg/L, biomembrane area is discharged TN≤8mg/
L；
5) denitrification filter pool area carbon source dosage≤15mg/L is controlled；
6) when denitrification filter pool area is discharged TN > 5mg/L, denitrification filter pool area carbon source dosage 10% is improved, until anti-
It nitrifies filter tank area and is discharged TN≤5mg/L, carbon source dosage is constant at this time for holding；
7) when denitrification filter pool area is discharged COD > 30mg/L, the carbon source dosage 10% of denitrification filter pool is reduced, until
Denitrification filter pool area is discharged COD≤30mg/L, and carbon source dosage is constant at this time for holding；
8) step 6) and step 7) are repeated, guarantees that denitrification filter pool area is discharged TN≤3mg/L, the water outlet of denitrification filter pool area
BOD≤6mg/L
After above-mentioned process, the water index that is discharged from water outlet are as follows: water outlet TP≤0.2mg/L or TP removal rate >=
90%, it is discharged TN≤5mg/L, is discharged COD≤30mg/L, is discharged SS≤6mg/L, system TN elimination capacity >=0.1kgN/m3/d。
It elaborates combined with specific embodiments below.
Embodiment 1:
It intakes using the water outlet of certain Primary Settling Tanks of Municipal Wastewater Treatment Plant as system, water 7.8m3/ h, pH mean value 6.90, water inlet
COD concentration 150~350mg/L, BOD concentration 70~175mg/L, TN 40~55mg/L of concentration, ammonia nitrogen concentration 30~45mg/L, TP
130~250mg/L of concentration 2~6mg/L, SS concentration.High-efficiency sewage treatment process anaerobic zone residence time 1.5h；One area of anoxic
1.5h；Two area 1.5h of anoxic；Settling zone surface loading 8m3/m2/h；Biomembrane area residence time 2.5h, suspending carrier used compare table
Area 800m2/m3, filling rate 45%；Buffer area residence time 0.1h；Denitrification filter pool area residence time 0.9h.
When operation, buffer area to one area's mixed liquid recycle ratio 200% of anoxic, 2nd area of anoxic to anaerobic zone reflux ratio 150%,
Settling zone is to one area's return sludge ratio 100% of anoxic.Anaerobic zone sludge concentration 4000mg/L, one area of anoxic, two area's sludge concentrations
Keep 6000mg/L, sludge concentration about 500mg/L in biomembrane area.Flocculant is added in flocculation zone, sludge settling is assisted and removes
Phosphorus.In denitrification filter pool area, design adds sodium acetate, and sodium acetate dosage 2.16kg/d assists denitrification denitrogenation, backwash frequency
Rate is 2 times/d.
Biomembrane area gas-water ratio 7.5:1 is controlled, DO is in 3.0~4.0mg/L.Denitrification filter pool area filtering velocity is 8-10L/m2/
H, the air purge time is 3min, air water joint washing time is 5min, the independent rinsing time of clear water is 8min.Gas flushing intensity is
16L/(m2S), water backwash rate is 5L/ (m2·s).Backwash is using filtrate floating as signal.
By processing, the COD concentration≤30mg/L being always discharged, TN concentration≤5mg/L, ammonia nitrogen concentration≤0.5mg/L, TP is dense
Degree≤0.2mg/L, SS concentration≤5mg/L.
Embodiment 2:
It intakes using the water outlet of certain school's Sewage Disposal conditioning tank as system, water 4.8m3/ h, pH mean value 6.90, water inlet
COD concentration 200~400mg/L, BOD concentration 80~150mg/L, TN 45~60mg/L of concentration, ammonia nitrogen concentration 20~40mg/L, TP
150~250mg/L of concentration 3~8mg/L, SS concentration.Anaerobic zone residence time 1.5h；One area 1.0h of anoxic；Two area 1.5h of anoxic；
Settling zone surface loading 8m3/m2/h；Biomembrane area residence time 3h, suspending carrier specific surface area 800m used2/m3, filling rate
40%；Buffer area residence time 0.1h；Denitrification filter pool area residence time 0.9h.
When operation, biomembrane area to one area's mixed liquid recycle ratio 200% of anoxic, 2nd area of anoxic to anaerobic zone reflux ratio
150%, settling zone to one area's return sludge ratio 100% of anoxic.Anaerobic zone sludge concentration 4500mg/L, one area of anoxic, 2nd area are dirty
Mud concentration keeps 7000mg/L, sludge concentration about 400mg/L in biomembrane area.Flocculant is added in flocculation zone, auxiliary sludge is heavy
Drop and dephosphorization.In denitrification filter pool area, design adds sodium acetate, and primary carbon source dosage is 30mg/L, after dropped according to effluent quality
Low is 15mg/L, sodium acetate dosage 2.2kg/d, assists denitrification denitrogenation, backwash frequency is 2 times/d.
Biomembrane area gas-water ratio 7:1 is controlled, DO is in 4~4.5mg/L.Denitrification filter pool area filtering velocity is 6-9L/m2/ h, air purge
Time is 2min, air water joint washing time is 5min, the independent rinsing time of clear water is 8min.Gas flushing intensity is 15L/
(m2S), water backwash rate is 5L/ (m2·s).Backwash is using filtrate floating as signal.
By processing, COD concentration≤25mg/L that process system is always discharged, TN concentration≤5mg/L, ammonia nitrogen concentration≤
0.5mg/L, TP concentration≤0.15mg/L, SS concentration≤5mg/L.
It takes or uses for reference prior art and can be realized in the part that do not addressed in aforesaid way.
It should be noted that any equivalent way that those skilled in the art are made under the introduction of this specification, or
Obvious variant should be within the protection scope of the present utility model.
Claims (4)
1. a kind of MBBR high standard sewage disposal system, it is characterised in that: it includes going to rear sequentially connected anaerobic zone certainly, lacking
One area of oxygen, 2nd area of anoxic, flocculation zone, settling zone, biomembrane area, buffer area, denitrification filter pool area and exhalant region, adjacent region
Separated by partition wall, communication port is provided on the partition wall, adjacent region keeps connection by opening the communication port；It is described
Anaerobic zone be connected with water inlet pipe, the exhalant region is connected with outlet pipe, and treatment sewage enters through the water inlet pipe, through locating
It is discharged after reason from the outlet pipe；
The flocculation zone is connected with chemical feed pipe one, and the settling zone bottom is connected with mud return line one and excess sludge row
Pipe is put, the other end of the mud return line one is connected to one area of anoxic, and the excess sludge delivery pipe will be for that will remain
Remaining sludge discharge；
Nitrification liquid return pipe is connected between the buffer area and one area of anoxic, the anaerobic zone is lacked with described
Oxygen is connected with mud return line two between 2nd areas；
The denitrification filter pool area is connected with chemical feed pipe two, and the exhalant region is connected with escape pipe；
It is respectively arranged with blender in the anaerobic zone, one area of anoxic, 2nd area of anoxic and flocculation zone, in the biomembrane
It is disposed with suspending carrier, aerator one in area and intercepts sieve, is disposed with and contains from top to bottom in the denitrification filter pool area
Water layer, quartz sand filter media layer, supporting layer, filter block, aerator two and backwash water distributor, in the exhalant region and the denitrification
Backwashing pump is provided between the area of filter tank, the backwash water distributor is connect with the backwashing pump.
2. a kind of MBBR high standard sewage disposal system according to claim 1, it is characterised in that: the sludge reflux
Water pump is provided on Guan Yi, nitrification liquid return pipe and mud return line two.
3. a kind of MBBR high standard sewage disposal system according to claim 1, it is characterised in that: the interception sieve
It is arranged in front of the communication port between the biomembrane area and the buffer area, is porous plate.
4. a kind of MBBR high standard sewage disposal system according to claim 1, it is characterised in that: the aerator one
For oxygenic aeration device, the aerator two is backwash aerator.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108585384A (en) * | 2018-06-29 | 2018-09-28 | 青岛思普润水处理股份有限公司 | A kind of MBBR high standards sewage disposal system and treatment process |
| CN110585794A (en) * | 2019-10-15 | 2019-12-20 | 青岛思普润水处理股份有限公司 | Carrier filter and application thereof in sewage treatment |
| CN113968619A (en) * | 2021-06-25 | 2022-01-25 | 北京绿恒科技有限公司 | Self-circulation double-AO biochemical integrated sewage treatment device and water treatment system |
-
2018
- 2018-06-29 CN CN201821015073.8U patent/CN208732851U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108585384A (en) * | 2018-06-29 | 2018-09-28 | 青岛思普润水处理股份有限公司 | A kind of MBBR high standards sewage disposal system and treatment process |
| CN108585384B (en) * | 2018-06-29 | 2023-08-29 | 青岛思普润水处理股份有限公司 | MBBR high-standard sewage treatment system and treatment process |
| CN110585794A (en) * | 2019-10-15 | 2019-12-20 | 青岛思普润水处理股份有限公司 | Carrier filter and application thereof in sewage treatment |
| CN113968619A (en) * | 2021-06-25 | 2022-01-25 | 北京绿恒科技有限公司 | Self-circulation double-AO biochemical integrated sewage treatment device and water treatment system |
| CN113968619B (en) * | 2021-06-25 | 2023-08-08 | 北京绿恒科技有限公司 | Self-circulation double-AO biochemical integrated sewage treatment device and water treatment system |
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