CN206033378U - Nitrogen and phosphorus removal sewage treatment device - Google Patents
Nitrogen and phosphorus removal sewage treatment device Download PDFInfo
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- CN206033378U CN206033378U CN201621032491.9U CN201621032491U CN206033378U CN 206033378 U CN206033378 U CN 206033378U CN 201621032491 U CN201621032491 U CN 201621032491U CN 206033378 U CN206033378 U CN 206033378U
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- mbr ponds
- anoxic pond
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- 239000010865 sewage Substances 0.000 title claims abstract description 36
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title abstract description 20
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title abstract description 15
- 229910052698 phosphorus Inorganic materials 0.000 title abstract description 15
- 239000011574 phosphorus Substances 0.000 title abstract description 15
- 229910052757 nitrogen Inorganic materials 0.000 title abstract description 11
- 239000012528 membrane Substances 0.000 claims abstract description 91
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 80
- 229910001868 water Inorganic materials 0.000 claims abstract description 80
- 239000007788 liquid Substances 0.000 claims abstract description 30
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 21
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 20
- 230000000694 effects Effects 0.000 claims abstract description 17
- 206010021143 Hypoxia Diseases 0.000 claims abstract description 11
- 238000007654 immersion Methods 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- 239000000126 substance Substances 0.000 claims description 9
- 230000005484 gravity Effects 0.000 claims description 6
- 206010002660 Anoxia Diseases 0.000 claims description 5
- 241000976983 Anoxia Species 0.000 claims description 5
- 230000007953 anoxia Effects 0.000 claims description 5
- 230000007062 hydrolysis Effects 0.000 claims description 3
- 238000006460 hydrolysis reaction Methods 0.000 claims description 3
- 239000013589 supplement Substances 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims 1
- 239000010802 sludge Substances 0.000 abstract description 22
- 239000007789 gas Substances 0.000 abstract description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 10
- 239000003814 drug Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 18
- 238000010992 reflux Methods 0.000 description 11
- 210000003437 trachea Anatomy 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 238000005265 energy consumption Methods 0.000 description 8
- 229910052760 oxygen Inorganic materials 0.000 description 8
- 239000001301 oxygen Substances 0.000 description 8
- 229910002651 NO3 Inorganic materials 0.000 description 6
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 6
- 241000894006 Bacteria Species 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 3
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 229920000388 Polyphosphate Polymers 0.000 description 2
- 229920000037 Polyproline Polymers 0.000 description 2
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000005273 aeration Methods 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 230000004060 metabolic process Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 239000001205 polyphosphate Substances 0.000 description 2
- 235000011176 polyphosphates Nutrition 0.000 description 2
- 230000001376 precipitating effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005276 aerator Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model provides a nitrogen and phosphorus removal sewage treatment device, includes oxygen deficiency unit, good oxygen unit and anaerobism unit, and the oxygen deficiency unit includes the oxygen deficiency pond, and good oxygen unit includes that the dull and stereotyped membrane MBR pond of submergence formula, submergence formula flat sheet membrane module, suction pump and membrane erode the fan, and the anaerobism unit includes the anaerobism pond. The backward flow in the dull and stereotyped membrane MBR pond of sewage, anaerobism cell -out water and submergence formula after the preliminary treatment is nitrified liquid and is directly got into the oxygen deficiency pond together, the membrane erodees the fan and is arranged in erodeing gas in the dull and stereotyped membrane MBR pond production of submergence formula, the play water in oxygen deficiency pond is erodeing the front end that gets into the dull and stereotyped membrane MBR pond of submergence formula under the gaseous upwelling effect, the unit to subsequent processing is taken out by the suction pump from the immersion type membrane subassembly to the play water in the dull and stereotyped membrane MBR pond of submergence formula, the anaerobism pond intakes to the mixed liquid of backward flow in oxygen deficiency pond. The utility model discloses effectively solve the carbon source contention problem of carbon source nitrogen and phosphorus removal reaction when not enough, reduced excess sludge volume, outer adding medicament's input amount, equipment investment and operating power consumption and relevant cost.
Description
Technical field
This utility model belongs to sewage treatment area, and in particular to a kind of denitrogenation dephosphorizing sewage disposal device, is especially suitable for
Sewage disposal when carbon source is not enough in sewage.
Background technology
As discharge standard is increasingly improved, the water quality requirement to sewage disposal plant effluent at present, except require to remove BOD,
Outside COD and SS, also add denitrogenate, the requirement of dephosphorization.At present, while having with organic matter removal and denitrogenation dephosphorizing function
Power biochemical processing process adopt ultimate principle be all using polyP bacteria under anaerobic, absorb fast degradation Organic substance it is same
When, internal phosphorus is discharged, then under aerobic condition, is realized that the excess of phosphorus absorbs, is realized by discharging excess sludge
The removal of phosphorus；By nitrifier under aerobic condition, by mineralized nitrogen into nitrite, nitrate, then by denitrifying bacterium
Under anoxic conditions, nitrite, nitrate transformation are discharged into nitrogen while absorbing Organic substance, realizes the removal of nitrogen；Have
Organic pollutants are removed by the metabolism of microorganism under anaerobism, anoxia, aerobic condition.Classical denitrogenation is removed
Accompanying drawing 1 is shown in phosphorus technological process.
A is adopted at present2The problem that the common process of O is generally present is：
1st, denitrogenation dephosphorizing reaction contention carbon source, carbon source affect Nitrogen/Phosphorus Removal when not enough；
2nd, contain dissolved oxygen and nitrate in sludge reflux liquid, affect anaerobic phosphorus release effect；
3rd, mixed-liquor return and sludge reflux generally adopt water pump reflux type, and power consumption is high.
For 3 above-mentioned problems, the carbon source for having carried out in the industry being consumed in various improvement, but one side technique be still into
Organic substance carbon source in water, on the other hand, various backflows have no reduction.
Since membrane bioreactor (MBR) technique enters the practical application stage, with reference to membrane bioreactor (MBR) technique
A2O denitrification dephosphorization technique flow processs are shown in accompanying drawing 2.Its change is as follows：
1st, sludge concentration increases, and reactor volume is reduced；
2nd, aerobic unit is rewritten into two units of aerobic biochemical pool and membrane cisterna；
3rd, in traditional handicraft, second pond changes from anoxic pond to anaerobic pond backflow to the sludge reflux of anaerobic pond.Due to being divided with film
Second pond be instead of from facility, the sludge concentration in reactor brought up to be enough to it is dense with sedimentation in secondary sedimentation tank sludge in traditional handicraft
The degree of suitable even more high is spent, therefore, sufficiently achieved and second pond sludge reflux in traditional handicraft using the backflow of mixed liquor
Identical effect.Anaerobic pond is back to from anoxic pond water outlet, more ensure that dissolved oxygen and nitrate concentration quilt in mixed liquor
It is preferably minimized, the adverse effect of anaerobic phosphorus release is minimized；
4th, membrane cisterna is increased to the backflow of Aerobic Pond, prevent sludge from building up in membrane cisterna and cause fouling membrane and affect film
Flux.
Combine the A of Nets impregnated (MBR)2O techniques, except as traditional handicraft, consumption is still
Outside external organic carbon source in water inlet, membrane cisterna is also add to the backflow energy consumption of Aerobic Pond.
The not enough phenomenon generally existing of China's town sewage carbon source, has a strong impact on the stable reality of denitrogenation dephosphorizing target at present
It is existing, and it is energy-saving be target that insider pursues all the time.
Therefore, R and D are a kind of in the case of water-inlet carbon source deficiency, it can be ensured that Nitrogen/Phosphorus Removal it is new
Low consumption sewage treatment process and equipment are very necessary.
Utility model content
For the deficiencies in the prior art, this utility model aims to provide a kind of denitrogenation dephosphorizing sewage disposal device, effectively solves
The carbon source contention problem of denitrogenation dephosphorizing reaction when carbon source of having determined is not enough, improves the effect of denitrogenation dephosphorizing；Reduce residue simultaneously
Sludge quantity, the input amount of outer adding medicine, equipment investment and operation energy consumption and correlative charges.
What this utility model was realized in：
A kind of denitrogenation dephosphorizing sewage disposal device, including anoxic unit, aerobic unit and anaerobic unit, the anoxic unit
Including anoxic pond, the aerobic unit includes that immersed flat panel membrane MBR ponds, immersed type flat plate membrane component, suction pump and film wash away
Blower fan, the anaerobic unit include anaerobic pond.
The backflow nitrification liquid of sewage after pretreatment, anaerobic pond water outlet and immersed flat panel membrane MBR ponds directly enters together
Enter the anoxic pond；
The film washes away blower fan for producing flush gas in the immersed flat panel membrane MBR ponds；
The water outlet of the anoxic pond is under the upper up-flow effect of immersed flat panel membrane MBR ponds flush gas by from the anoxia
The bottom of pond side sucks the front end in the immersed flat panel membrane MBR ponds；
Mixed liquor in the immersed flat panel membrane MBR ponds washes away the gas stripping of generation as backflow nitrification liquid by film
Return in the anoxic pond from the other end in the immersed flat panel membrane MBR ponds；
The water outlet in the immersed flat panel membrane MBR ponds is evacuated to subsequent treatment by the suction pump from the immersion type membrane component
Unit；
Backflow mixed liquor of the anaerobic pond water inlet for the anoxic pond, before the anaerobic pond water outlet enters the anoxic pond
End.
Preferably, the horizontal layout in the anoxic pond and the immersed flat panel membrane MBR ponds is loop back mode, described
Anoxic pond water outlet is under the upper up-flow effect of immersed flat panel membrane MBR ponds flush gas by from the immersed flat panel membrane MBR ponds
The bottom of one end sucks the immersed flat panel membrane MBR ponds, after the immersed flat panel membrane MBR ponds reaction described in then another from MBR ponds
The upper part of one end sends anoxic pond back to.
Preferably, the mixed liquor in the immersed flat panel membrane MBR ponds washes away generation as backflow nitrification liquid by film
Gas stripping is returned in the anoxic pond from the other end in the immersed flat panel membrane MBR ponds；
Preferably, the anoxic unit also includes mixed-liquor return pipe and mixed-liquor return pump, the backflow of the anoxic pond
Mixed-liquor return pipe described in mixed liquor Jing is pumped into the anaerobic pond, and the backflow mixed liquor accounts for described after pretreatment
The 2～5% of sewage quantity, hydraulic detention time of the backflow mixed liquor in the anaerobic pond are 20-30h.
Preferably, the anaerobic pond is adjacent with the anoxic pond, and the anaerobic pond water outlet is from the anaerobic pond top side wall
The anoxic pond is entered by flow by gravity, the Organic substance for anaerobic hydrolysis are produced is supplemented back as the carbon source of denitrogenation dephosphorizing and lacked
Oxygen pond.
Compared with prior art, this utility model has the advantages that：
(1) generation Organic substance is hydrolyzed under anaerobic using sludge in backflow mixed liquor in anaerobic pond, remove as denitrogenation
The carbon source of phosphorus, the carbon source contention problem of denitrogenation dephosphorizing reaction when efficiently solving carbon source deficiency (i.e. low C/N or C/P), improves
Nitrogen/Phosphorus Removal；
(2) excess sludge production is reduced, reduces the throwing of outer adding medicine (including organic carbon source, dephosphorization agent and flocculation aid)
Enter amount, equipment investment, operation energy consumption and correlative charges；
(3) immersed flat panel membrane MBR ponds are carried out to the mixed-liquor return of anoxic pond by gas stripping, and anaerobic pond water outlet
Anoxic pond is entered by top flow by gravity, traditional water pump reflux type is eliminated, is reduced energy consumption, reduce equipment investment；
(4) utilize sewage long residence time, i.e. dwell time of sewage in anaerobic pond to be 20～30h, avoid to greatest extent
The impact of dissolved oxygen and nitrate to anaerobic phosphorus release effect, improves phosphor-removing effect；
(5) immersed flat panel membrane MBR ponds are Aerobic Pond, the two not separated setting, and anaerobic pond, anoxic pond and immersion
Build altogether by wall for Flat Membrane MBR pond three, reduces occupation area of equipment, improves equipment efficiency of usage, greatlys save power
Equipment, reduces energy consumption, realizes the purpose on energy-efficient province ground.
Description of the drawings
Fig. 1 is traditional A2O denitrification dephosphorization technique schematic flow sheets.
Fig. 2 is combined with the A of MBR techniques2O denitrification dephosphorization technique schematic flow sheets.
Fig. 3 is this utility model denitrogenation dephosphorizing sewage treatment process schematic diagram.
Fig. 4 is this utility model denitrogenation dephosphorizing sewage disposal device plane graph.
Fig. 5 is this utility model denitrogenation dephosphorizing sewage disposal device A-A generalized sections.
Labelling in all accompanying drawings is as follows：
The first anoxic ponds of 1-, 1 '-the second anoxic pond, 2- the first immersed flat panel membrane MBR ponds, 2 '-the second immersed flat plates
Film MBR ponds, the first anaerobic ponds of 3-, 3 '-the second anaerobic ponds, the first immersed type flat plate membrane components of 4-, 4 '-the second immersed flat panel membranes
Component, the first water inlet pipes of 5-, 5 '-the second water inlet pipes, 6- the first mixed-liquor return pumps, 6 '-the second mixed-liquor return pumps, 7- first
Mixed-liquor return pipe, 7 '-the second mixed-liquor return pipes, the first films of 8- wash away trachea, and 8 '-the second films wash away trachea, and 9- first is rushed
Brush blower fan, 9 '-the second wash away blower fan, the first suction pumps of 10-, 10 '-the second suction pumps, 11- the first film outlet pipes, and 11 '-the second
Film outlet pipe.
Specific embodiment
A kind of structure of denitrogenation dephosphorizing sewage disposal device of this utility model will be described by the embodiment in accompanying drawing below
Construction.
As shown in Fig. 3, Fig. 4 and Fig. 5, denitrogenation dephosphorizing sewage disposal device includes anoxic unit, aerobic unit and anaerobism list
Unit.Anoxic unit includes anoxic pond, and aerobic unit includes immersed flat panel membrane MBR ponds (hereinafter referred to as MBR ponds), anaerobic unit bag
Include anaerobic pond.Anoxic pond is loop back mode with the horizontal layout in immersed flat panel membrane MBR ponds.Raw sewage is directly entered anoxia
Pond.From anoxic pond, MBR ponds provide backflow nitrification liquid (this partial reflux mixing for back flowing into anoxic pond for the water inlet in MBR ponds
Liquid also referred to as backflow nitrification liquid).The water inlet of anaerobic pond is entered by flow by gravity from anoxic pond or MBR ponds, the water outlet of anaerobic pond
Enter anoxic pond.Water Jing after the process of MBR ponds is discharged by film outlet pipe, is discharged precipitating sludge by discharge pipeline by sewage.Discharge
Mode can alternatively enter subsequent processing units for directly discharging.
As shown in Fig. 3, Fig. 4 and Fig. 5, preferably anoxic pond, MBR ponds and anaerobic pond three are built jointly for wall altogether.Wall is built jointly altogether
Three processing units, reduce occupation area of equipment, improve equipment treatment effeciency.It is preferred that the two MBR ponds that be arranged in parallel, i.e.,
One immersed flat panel membrane MBR ponds 2 and the second immersed flat panel membrane MBR ponds 2 '.In the first immersed flat panel membrane MBR ponds 2 and second
The both sides in immersed flat panel membrane MBR ponds 2 ' are respectively symmetrically the first anoxic pond 1 of setting and the second anoxic pond 1 ', the first anoxic pond 1
Wall is disposed adjacent opposite side altogether with the first anaerobic pond 3, and the opposite side of the second anoxic pond 1 ' is total to the second anaerobic pond 3 ' that wall is adjacent to be set
Put.That is, immersed flat panel membrane MBR ponds 2,2 ' are arranged on centre, both sides are respectively symmetrically two anoxic ponds of setting and two successively
Anaerobic pond.Three processing units that wall is built jointly altogether, can directly connect between pond, could realize the function and adjacent two of air stripping
Flow by gravity between pond, and waterpower plug-flow of the water in pond, while reducing occupation area of equipment, improve equipment and process effect
Rate.
As shown in Fig. 3, Fig. 4 and Fig. 5, anoxic unit includes anoxic pond, water inlet pipe, outlet, mixed-liquor return pipe and mixes
Close liquid reflux pump.Two anoxic ponds are preferably provided with, two anoxic ponds are symmetricly set on the both sides in two MBR ponds be arrangeding in parallel,
The opposite side of two anoxic ponds is total to wall again respectively and is disposed adjacent an anaerobic pond.Water inlet pipe is directly connected with anoxic pond.That is, Jing
The sewage of pretreatment and runoff investigation unit not directly enters anaerobic pond, but is directly entered anoxic pond, i.e., first by water inlet pipe
Water inlet pipe 5 directly connects setting with the first anoxic pond 1, and the second water inlet pipe 5 ' directly connects setting with the second anoxic pond 1 '；Simultaneously
Into the first anoxic pond 1 also from the backflow nitrification liquid in the second immersed flat panel membrane MBR ponds 2 ' and going out for the first anaerobic pond 3
Water, while enter backflow nitrification liquid and second anaerobism also from the first immersed flat panel membrane MBR ponds 2 of the second anoxic pond 1 '
The water outlet in pond 3 '.Outlet is located at anoxic pond bottom side, and anoxic pond is connected with MBR ponds by outlet, water outlet is passed through
Bottom outlet is delivered in MBR ponds.
The water inlet of anoxic pond includes three parts：Part I is through pretreatment and runoff investigation by water inlet pipe entrance
The sewage of unit, Part II are the backflow nitrification liquid from BMR ponds, and Part III is the water outlet from anaerobic pond.Anoxic pond
Water outlet be divided into two-way, all the way in MBR ponds film wash away air-flow rise produce suction function under, Jing bottoms outlet is inhaled into
In MBR ponds；Another road is suitable to from the blended liquid return duct of anoxic pond be pumped flow back into anaerobic pond.In anoxic pond, in water
Organic substance be broken down into carbon dioxide, ammonia nitrogen and water, nitrate nitrogen is converted into nitrogen, and phosphate is entered by preliminary excessive consumption
Enter in sludge.
As shown in Fig. 3, Fig. 4 and Fig. 5, aerobic unit includes MBR ponds, immersed type flat plate membrane component, suction pump, film water outlet
Pipe, bottom discharge pipeline, sludge pump, wash away blower fan and film washes away trachea.It is preferred that the two MBR ponds that be arranged in parallel, two MBR ponds are total to wall
Arrange.Each MBR ponds both sides is respectively symmetrically one anoxic pond of setting, and wall is disposed adjacent altogether for side and the MBR ponds of each anoxic pond,
Wall is disposed adjacent the opposite side of each anoxic pond altogether with an anaerobic pond respectively.MBR ponds are both Aerobic Pond and membrance separation pond.Leaching
Do not have formula plate film assembly to be located inside MBR ponds.Film outlet pipe is connected with immersed type flat plate membrane component, and suction pump is arranged on film and goes out
On water pipe, the water in immersed type flat plate membrane component by film outlet pipe be pumped discharge, such as up to discharge standard for when can be straight
Run in and put, when below standard, enter subsequent processing units.MBR bottom of pond portion is connected with discharge pipeline (non-diagram), and sludge pump is arranged on
On discharge pipeline, the precipitating sludge in MBR ponds is pumped by discharge pipeline and drains into subsequent processing units.
Film is washed away trachea and is connected with MBR bottom of pond portion, and film washes away the inlet end of trachea and is connected with blower fan is washed away.MBR ponds
At least one film of middle setting washes away trachea.Compressed air stream washes away trachea into the bottom in MBR ponds in the case where fan action is washed away by film
Portion, and Jing films wash away trachea and produce gas stripping, the water outlet of the anoxic pond film in MBR ponds washes away air-flow and rises the negative pressure for producing to be made
With under, MBR ponds are inhaled into from anoxic pond bottom outlet, backflow overhead reflux of the nitrification liquid from MBR ponds under gas stripping enters
Enter anoxic pond.Meanwhile, air-flow is also acted on following both sides：One side air-flow rises the turbulent flow for producing to submerged membrane group
The outer surface of part produces scrubbing action, prevents or reduce the pollution and blocking of film；On the other hand this air-flow also has simultaneously and exposes
Gas is acted on, there is provided the oxygen amount needed for bacteria metabolism.If the film for washing away blower fan washes away be less than with air demand needed for air stripping
Air demand needed for aeration, then biochemical oxygen supply blower fan (such as aerator or Aeration fan etc.) supplemental oxygen will be set again.For
The energy consumption that film washes away is reduced to greatest extent, and preferably immersed type flat plate membrane component is double-deck big diaphragm unit.
Certainly, the water inlet of anaerobic pond can be from MBR ponds.So, aerobic unit can also include mixed-liquor return pump
And mixed-liquor return pipe.MBR ponds are connected with mixed-liquor return pipe, arrange mixed-liquor return pump, anaerobism on mixed-liquor return pipe
The water inlet in pond is pumped into anaerobic pond from the blended liquid return duct in MBR ponds.The water inlet in MBR ponds goes out from anoxic pond, anoxic pond
Water mixed liquid rises in air-flow and be inhaled into MBR ponds from anoxic pond under produced suction function.Aerobic condition in MBR ponds
Under, the ammonia nitrogen in water is converted into nitrate nitrogen, and phosphate is removed, remaining Organic substance quilt by the further excessive consumption of polyP bacteria
Resolve into carbon dioxide and water.
If the water inlet of anaerobic pond is from MBR ponds, MBR ponds include water outlet path at three, and the first via is provided back for MBR ponds
Backflow nitrification liquid of the stream into anoxic pond, Jing washes away blower fan and film washes away the film of trachea and washes away the gas stripping of generation and make MBR ponds
Mixed liquor can open up outlet at the top of MBR ponds from overflow at the top of MBR ponds to anoxic pond, be overflow by the size control of outlet
It flow to the water yield of anoxic pond, it is also possible to which MBR arranges movable barrage at the top of pond, by the lifting of the height and/or air stripping of regulating weir
Degree carrys out water yield adjusting；Second tunnel is adapted as being back to the backflow mixed liquor of anaerobic pond, blended liquid reflux pump and mixed liquor
Return duct is back to anaerobic pond；3rd tunnel is discharge water outlet, is gone out by the water outlet Jing suction pumps and film of immersed type flat plate membrane component
Water pipe directly discharges or drains into subsequent processing units and carries out advanced treating.
As MBR ponds have also taken on the effect in membrance separation pond simultaneously, therefore, under immersed type flat plate membrane component in the pond
Side will gather sludge settling, these sludge it is a part of it is reflowable be used for hydrolyzing carbon source in replenishment system to anaerobic pond, it is unnecessary
Part can drain into subsequent processing units.Therefore, when the water inlet of anaerobic pond is that the muddy water from immersed flat panel membrane MBR ponds mixes
During liquid, flow control valve can be installed on mixed-liquor return pipe additional, mixed-liquor return is directly entered anaerobic pond all the way, another road is made
Successive depths processing unit is drained into by mud discharging mouth for excess sludge；When the water inlet of anaerobic pond is from anoxic pond, sludge
Successive depths processing unit is immediately discharged to by mud discharging mouth then.
As shown in Fig. 3, Fig. 4 and Fig. 5, anaerobic pond includes water inlet (non-diagram) and top delivery port (non-diagram).Anaerobism
Pond is the pond for sharing a wall with anoxic pond.Centered on MBR ponds, two anaerobic ponds are symmetrically arranged at two anoxic ponds
Both sides.The outlet of anaerobic pond is arranged on the top of anaerobic pond, controls anaerobic pond to anoxia by the size of adjustment outlet
The water yield in pond.Anaerobic pond water outlet enters anoxic pond from anaerobic pond top delivery port by flow by gravity, without the need for peripheral hardware pumping installations, section
Energy consumption is saved.The Organic substance that the anaerobic hydrolysis for wherein carrying are produced supplements back anoxic pond as the carbon source of denitrogenation dephosphorizing.Also can be
Pipeline and valve are set between anaerobic pond and anoxic pond, anaerobic pond is regulated and controled to the water yield of anoxic pond by valve.Anaerobic pond is intake
Mouth is arranged on anaerobism pool wall, and less than the highest liquid level of anaerobic pond.According to the needs of system, the water inlet of anaerobic pond can be from
The mixed-liquor return of anoxic pond or the mixed-liquor return in immersed flat panel membrane MBR ponds, the blended liquid reflux pump of mixed-liquor return are carried
Rise and pass through mixed-liquor return pipe to enter in anaerobic pond.Mixed-liquor return ratio is only the 2～5% of sewage load, is reduced
Equipment usage amount and energy consumption；Backflow mixed liquor hydraulic detention time in the anaerobic pond is 20～30h, is avoided to greatest extent molten
The solution impact of oxygen and nitrate to anaerobic phosphorus release effect, improves phosphor-removing effect.
In sewage disposal, using following steps：
(1) raw sewage passes through the first water inlet pipe 5 respectively and the second water inlet pipe 5 ' enters the first anoxic pond 1 and the second anoxic pond
1 ', meanwhile, the water outlet of the first anaerobic pond 3 overflows into the first anoxic pond 1 from top, and the water outlet of the second anaerobic pond 3 ' is overflow from top
Go out to enter two anoxic ponds 1 '；The backflow nitrification liquid in the first immersed flat panel membrane MBR ponds 2 enters the second anoxic pond 1 ', the second leaching
The backflow nitrification liquid for not having formula Flat Membrane MBR pond 2 ' is entered in the first anoxic pond 1.
(2) first washes away and then the first anoxic pond 1 is by bottom outlet, and in the first immersed flat panel membrane MBR ponds 2
Blower fan 9 and the first film are washed away under the upper up-flow effect that 8 film of trachea washes away generation, and the water outlet of the first anoxic pond 1 is made by negative pressure
With suction the first immersed flat panel membrane MBR ponds 2 in, and with 4 directly contact of the first immersed type flat plate membrane component；Second anoxic pond 1 '
By bottom outlet, and second blower fan 9 ' is washed away and the second film washes away trachea 8 ' in the second immersed flat panel membrane MBR ponds 2 '
Film is washed away under the upper up-flow effect of generation, and the water outlet of the second anoxic pond 1 ' is sucked the second membrane bioreaction device pond by suction function
In 2 ', and with 4 ' directly contact of the second immersion type membrane component.
(3) after the process of the first immersed flat panel membrane MBR ponds 2, nitrification liquid Jing the first immersed flat panel membrane MBR ponds of flowing back
2 top exit enters the second anoxic pond 1 ' by air stripping overflow；After the second immersed flat panel membrane MBR ponds 2 ' are processed, return
The top exit in stream nitrification liquid Jing the second immersed flat panel membrane MBR ponds 2 ' enters the first anoxic pond 1 by air stripping overflow；
(4) through the first mixed-liquor return pump 6 and the first mixed-liquor return pipe 7, by the first anoxic pond 1 or the first immersion
Mixture pump in Flat Membrane MBR pond 2 send and flows back into the first anaerobic pond 3；It is mixed through the second mixed-liquor return pump 6 ' and second
Liquid return duct 7 ' is closed, the mixture pump in the second anoxic pond 1 ' or the second immersed flat panel membrane MBR ponds 2 ' is sent and is flowed back into the
Two anaerobic ponds 3 '；
(5) water outlet after the process of the first immersed flat panel membrane MBR ponds 2, Jing the first suction pumps 10 and the first film water outlet
Pipe 11 is directly discharged or drains into advanced treatment unit；Water outlet after the second immersed flat panel membrane MBR ponds 2 ' are processed, Jing second
Suction pump 10 ' and the second film outlet pipe 11 ' are directly discharged or drain into advanced treatment unit.
Finally it should be noted that：Above-described each embodiment is merely to illustrate the technical solution of the utility model, rather than
Which is limited；Although being described in detail to this utility model with reference to the foregoing embodiments, one of ordinary skill in the art
It should be understood that：Which still can be modified to the technical scheme described in previous embodiment, or to which part or whole
Technical characteristic carries out equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from this utility model
The scope of each embodiment technical scheme.
Claims (5)
1. a kind of denitrogenation dephosphorizing sewage disposal device, including anoxic unit, aerobic unit and anaerobic unit, the anoxic unit bag
Anoxic pond is included, the aerobic unit includes that immersed flat panel membrane MBR ponds, immersed type flat plate membrane component, suction pump and film wash away wind
Machine, the anaerobic unit include anaerobic pond, it is characterised in that：
The backflow nitrification liquid of sewage after pretreatment, anaerobic pond water outlet and immersed flat panel membrane MBR ponds is directly entered institute together
State anoxic pond；
The film washes away blower fan for producing flush gas in the immersed flat panel membrane MBR ponds；
The water outlet of the anoxic pond is under the upper up-flow effect of immersed flat panel membrane MBR ponds flush gas by from the anoxic pond one
The bottom of side sucks the front end in the immersed flat panel membrane MBR ponds；
Mixed liquor in the immersed flat panel membrane MBR ponds washes away the gas stripping of generation from institute as backflow nitrification liquid by film
The other end for stating immersed flat panel membrane MBR ponds is returned in the anoxic pond；
The water outlet in the immersed flat panel membrane MBR ponds is evacuated to subsequent treatment list by the suction pump from the immersion type membrane component
Unit；
Backflow mixed liquor of the anaerobic pond water inlet for the anoxic pond, the anaerobic pond water outlet enter the anoxic pond front end.
2. denitrogenation dephosphorizing sewage disposal device according to claim 1, is characterized in that：The anoxic pond and the immersion
The horizontal layout in Flat Membrane MBR pond is loop back mode, and the anoxic pond water outlet is in immersed flat panel membrane MBR ponds flush gas
Upper up-flow effect under the immersed flat panel membrane MBR ponds, Jing are sucked by the bottom from described immersed flat panel membrane MBR ponds one end
After the immersed flat panel membrane MBR ponds reaction, anoxic pond is sent on top of the part again from the MBR ponds other end back to.
3. denitrogenation dephosphorizing sewage disposal device according to claim 1, it is characterised in that：The anoxic unit also includes
The mouth of a river, the outlet are located at the bottom side of the anoxic pond, the anoxic pond and the immersed flat panel membrane MBR Chi Cebi
Adjacent, the water outlet of the anoxic pond is flowed out from the outlet and the film flush gas rising institute in immersed flat panel membrane MBR ponds
Immersed flat panel membrane MBR ponds are inhaled under the suction function of generation.
4. denitrogenation dephosphorizing sewage disposal device according to claim 1, it is characterised in that：The anoxic unit also includes mixed
Liquid return duct and mixed-liquor return pump is closed, mixed-liquor return pipe is pumped into institute described in backflow mixed liquor Jing of the anoxic pond
Anaerobic pond is stated, the backflow mixed liquor accounts for the 2～5% of the sewage quantity after pretreatment, and the backflow mixed liquor is described
Hydraulic detention time in anaerobic pond is 20-30h.
5. denitrogenation dephosphorizing sewage disposal device according to claim 1, it is characterised in that：The anaerobic pond and the anoxia
Pond adjoins, and the anaerobic pond water outlet enters the anoxic pond from the anaerobic pond top side wall by flow by gravity, for by anaerobism
The Organic substance that hydrolysis is produced supplements back anoxic pond as the carbon source of denitrogenation dephosphorizing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621032491.9U CN206033378U (en) | 2016-08-31 | 2016-08-31 | Nitrogen and phosphorus removal sewage treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621032491.9U CN206033378U (en) | 2016-08-31 | 2016-08-31 | Nitrogen and phosphorus removal sewage treatment device |
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| CN206033378U true CN206033378U (en) | 2017-03-22 |
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ID=58298110
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110563283A (en) * | 2019-10-12 | 2019-12-13 | 昆明金泽实业有限公司 | Air stripping formula backward flow integrates MBR sewage treatment device |
| CN111498992A (en) * | 2020-04-23 | 2020-08-07 | 北京汇恒环保工程股份有限公司 | Low dissolved oxygen biochemical reaction system and process thereof |
| CN112191105A (en) * | 2020-09-08 | 2021-01-08 | 重庆耐德环境技术有限公司 | Low-consumption membrane module flushing system |
| CN118145800A (en) * | 2024-03-07 | 2024-06-07 | 中国科学院生态环境研究中心 | Phosphorus-containing wastewater treatment system |
-
2016
- 2016-08-31 CN CN201621032491.9U patent/CN206033378U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110563283A (en) * | 2019-10-12 | 2019-12-13 | 昆明金泽实业有限公司 | Air stripping formula backward flow integrates MBR sewage treatment device |
| CN111498992A (en) * | 2020-04-23 | 2020-08-07 | 北京汇恒环保工程股份有限公司 | Low dissolved oxygen biochemical reaction system and process thereof |
| CN112191105A (en) * | 2020-09-08 | 2021-01-08 | 重庆耐德环境技术有限公司 | Low-consumption membrane module flushing system |
| CN118145800A (en) * | 2024-03-07 | 2024-06-07 | 中国科学院生态环境研究中心 | Phosphorus-containing wastewater treatment system |
| CN118145800B (en) * | 2024-03-07 | 2025-12-02 | 中国科学院生态环境研究中心 | Phosphorus-containing wastewater treatment system |
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