CN106830322A - It is a kind of suitable for low CN than modified form AAO ponds that sewage/wastewater is administered - Google Patents
It is a kind of suitable for low CN than modified form AAO ponds that sewage/wastewater is administered Download PDFInfo
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- CN106830322A CN106830322A CN201710121330.XA CN201710121330A CN106830322A CN 106830322 A CN106830322 A CN 106830322A CN 201710121330 A CN201710121330 A CN 201710121330A CN 106830322 A CN106830322 A CN 106830322A
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- 239000010865 sewage Substances 0.000 title claims abstract description 50
- 239000002351 wastewater Substances 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 75
- 238000005192 partition Methods 0.000 claims abstract description 51
- 230000004044 response Effects 0.000 claims abstract description 31
- 206010021143 Hypoxia Diseases 0.000 claims abstract description 30
- 230000007954 hypoxia Effects 0.000 claims abstract description 30
- 230000009189 diving Effects 0.000 claims abstract description 11
- 238000005276 aerator Methods 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 15
- 230000000694 effects Effects 0.000 description 9
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 8
- 229910052698 phosphorus Inorganic materials 0.000 description 8
- 239000011574 phosphorus Substances 0.000 description 8
- 241000894006 Bacteria Species 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- 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
- 238000000034 method Methods 0.000 description 5
- 229920000388 Polyphosphate Polymers 0.000 description 4
- 229920000037 Polyproline Polymers 0.000 description 4
- 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 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 239000001205 polyphosphate Substances 0.000 description 4
- 235000011176 polyphosphates Nutrition 0.000 description 4
- 239000010802 sludge Substances 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 239000010842 industrial wastewater Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000004176 ammonification Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000037406 food intake Effects 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/02—Fluid flow conditions
- C02F2301/028—Tortuous
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/043—Treatment of partial or bypass streams
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
It is a kind of suitable for low CN than modified form AAO ponds that sewage/wastewater is administered,Including anaerobic reaction area,Hypoxia response area,Aerobic reactor zone,Water inlet manifold,Mud return line,Total outlet pipe,The first straight type partition wall of the through hole of some bands second is provided with anaerobic reaction area,It is divided into the anaerobism subregion of some connections and is provided with the first diving mixer,The anaerobism subregion that water inlet manifold is accessed is muddy water mixed zone,The arc partition wall of opening at two is provided with hypoxia response area,Underwater scooter,The second straight type partition wall in arc partition wall,Some one end closings are provided with aerobic reactor zone,The be staggered the 3rd straight type partition wall that the other end disconnects,Aerobic reactor zone is divided into some gallerys,One group of aerobic subregion is designed with gallery,Pre- anoxic subregion and anoxic subregion,It is covered with aerator in aerobic subregion,The second diving mixer is provided with anoxic subregion.
Description
Technical field
The present invention relates to sewage/wastewater treatment technology, it is more particularly to a kind of suitable for low CN than modified form that sewage/wastewater is administered
AAO ponds.
Background technology
AAO is a kind of conventional sewage treatment process, can be used for B-grade sewage treatment, three-level sewage disposal and reclaimed water and returns
With the effect with denitrogenation dephosphorizing simultaneously.Three areas are generally divided into, three areas have different functions and effect respectively：
1., raw sewage synchronously enters and be sufficiently mixed, this reaction anaerobic reaction area with the phosphorous returned sludge discharged from sedimentation basin
Area's major function is polyP bacteria release phosphorus, for poly- phosphorus carries out adequate preparation, while partial organic substances are carried out into ammonification；
2., premiere feature is denitrogenation in hypoxia response area, and the mixed liquor rich in nitrate nitrogen is, by interior circulation, to be sent by aerobic reactor zone
Come, under the anaerobic environment in hypoxia response area, nitrate nitrogen is converted into N by denitrifying bacterium2After be discharged into air, it is right so as to play
The effect of sewage water denitrification, the mixing liquid measure of circulation is larger, generally 2Q ~ 3Q（Q is raw sewage flow）；
Aerobic reactor zone 3.-aeration zone, this reaction member is multi-functional, removes BOD, nitrification and absorbs phosphorus etc. herein
Reaction zone is carried out, and the 3. interior mixed liquor in aerobic reactor zone is rich in nitrate nitrogen, and is back to hypoxia response area from here 2..
As shown in figure 1, traditional AAO techniques have three significantly to be separated with partition wall or dividing plate but each other by hole or pipe
Road connection functional areas, respectively anaerobic reaction area 1., hypoxia response area 2. and aerobic reactor zone 3..Pending sewage（Water
Amount Q）With returned sludge（Typically 0.5 ~ 1Q）Together enter anaerobic reaction area 1., it is a ring for anaerobism that anaerobic reaction area is 1. interior
Border, dissolved oxygen（DO）≤ 0.2mg/L, usual anaerobic reaction area 1. interior setting diving mixer, enables sewage abundant with sludge
Mixing, 1. anaerobic reaction area is an anaerobic environment, and polyP bacteria fully releases phosphorus simultaneously energy reserve anaerobic reaction area is 1. interior, is it
Aerobic reactor zone 3. can fully, efficiently poly- phosphorus prepare.1. 2. outlet water at tail end enters hypoxia response area to anaerobic reaction area, leads to
Normal hypoxia response area 2. interior setting underwater scooter, at the same with it is 3. being flowed back from aerobic reactor zone, rich in nitrate nitrogen（NO3 --N）
Mixed liquor mixing.2. hypoxia response area includes substantial amounts of denitrifying bacterium, and under anoxic conditions, denitrifying bacterium is with anaerobic reaction area
1. the organic matter in outlet water at tail end is nutrients, nitrate in the mixed liquor that will be flowed back（NO3 --N）It is converted into nitrogen（N2）, overflow
The water surface is entered in air, so as to be able to remove the nitrogen in sewage（N）.2. outlet water at tail end enters aerobic reactor zone in hypoxia response area
3., 3. 3. interior setting aerator and is covered with whole aerobic reactor zone for usual aerobic reactor zone, by aerator to sewage in it is micro-
Biology provides the oxygen required for vital movement such as its growth, breeding, mainly realizes Organic Pollution aerobic reactor zone is 3. interior
Thing（BOD）Degraded, removal, kjeldahl nitrogen is converted into nitrate nitrogen by nitrification（NO3 --N）, and the mixed-liquor return by setting
2. blowback flow to hypoxia response area and the excess ingestion phosphorus of polyP bacteria（P）And remove the three zones such as P.By above-mentioned whole mistake
Journey, the pollutant in sewage is able to effectively remove, it is ensured that final outflow water being capable of qualified discharge or reuse.
The CN in sewage could effectively carry out denitrogenation than ＞ 2.86 in theory, and substantial amounts of Practical Project and research show,
In fact, can just make the normal operation of denitrification when CN is than ＞ 3.At CN ratio=4~5, the clearance of nitrogen is more than 60%.It is generally pure
Sanitary sewage and the preferable industrial wastewater CN of part water quality can guarantee that the clearance of nitrogen higher than ＞ 4.
At present, for the preferable sanitary sewage of water quality, the requirement of stably reaching standard discharge can be met completely.As China passes through
The fast development of Ji and environmental protection cause, sanitary sewage disposal demand is fewer and feweri.In contrast, various regions industrial park such as rain
Spring bamboo, advances by leaps and bounds afterwards, at the same produce a large amount of industrial wastewaters need treatment.In industrial park, often there is water quality complexity, it is dirty
The nutrition contents such as Organic substance in water are low and nitrogenous（N）Pollutant is often higher, and nutriment ratio is not in showing sewage
Suitably, this class waste water, we are normally referred to as " low CN is than sewage/wastewater ".Traditional AAO techniques are not adapted to instantly and future
The need for development, for industrial wastewater variation water quality is big, CN than low feature, if using above-mentioned traditional AAO techniques, often
Good denitrification effect is not reached, total nitrogen in water outlet is directly resulted in（TN）Exceeded, the development of serious restriction industrial park is finally led
Cause economic, society and environmental development limited.
Above-mentioned CN ratios are often referred to BOD in sewage5With the ratio of TN, represented with " CN ratios " below.
The content of the invention
It is an object of the invention to provide it is a kind of suitable for low CN than the modified form AAO ponds that sewage/wastewater is administered, traditional
AAO ponds are improved on basis, are mainly set by the transformation of pond type, water intake mode change, endless form innovation, functional areas
Deng concrete measure, low CN can be applied to and administered than sewage/wastewater, and can stably reaching standard discharge.
Above-mentioned purpose of the invention technical scheme is that：One kind compares sewage/wastewater suitable for low CN
The modified form AAO ponds of improvement, including anaerobic reaction area, hypoxia response area and aerobic reactor zone, by with first between three
The subregion wall of through hole is split and is connected, and anaerobic reaction area connection water inlet manifold and mud return line, aerobic reactor zone connection always go out
Water pipe, is provided with the first straight type partition wall of the through hole of some bands second in anaerobic reaction area, the first straight type partition wall distinguishes anaerobic reaction
Several anaerobism subregions connected by the second through hole are cut into, the first diving mixer are equipped with each anaerobism subregion,
The anaerobism subregion that wherein water inlet manifold is accessed is set to muddy water mixed zone, and the second straight type partition wall, arc are set in hypoxia response area
Shape partition wall and underwater scooter, the second straight type partition wall be located at arc partition wall in, arc partition wall be provided with two be located at the second straight type every
The opening of wall both sides, is provided with some three straight type partition walls in aerobic reactor zone, one end closing of the 3rd straight type partition wall, the other end breaks
Open, and adjacent 3rd straight type partition wall is staggered and is divided into aerobic reactor zone in the gallery of some connections, each gallery
One group of aerobic subregion being sequentially arranged, pre- anoxic subregion and anoxic subregion are provided with, aerator are covered with aerobic subregion,
The second diving mixer is provided with anoxic subregion.
By using above-mentioned technical proposal, the muddy water mixed zone of anaerobic reaction area primarily serves makes the well-mixed effect of muddy water
Really.Hypoxia response area sets the second straight type partition wall and arc partition wall, with reference to underwater scooter, makes the current shape in hypoxia response area
Into an annular, sewage is constantly circulated in hypoxia response area, and raw water is filled with the backflow mixed liquor from aerobic reactor zone
Divide dilution so that hypoxia response area forms a metastable environment, and adapts to the impact that sewage quality change brings, together
When can reduce operating load, improve nitric efficiency, compared with traditional AAO ponds, more than 10% nitric efficiency can be improved.It is aerobic
Reaction zone is partitioned into the assembly of some " aerobic subregions+pre- anoxic subregion+anoxic subregion ", and by these assemblys
It is cascaded, forms some order reaction areas, each assembly carries out denitrification process simultaneously, according to reaction of high order efficiency
Theory, such as：Single-stage assembly nitric efficiency is 40%, then it is 100%- that two-stage combines total nitric efficiency（100%-40%）*
（100%-40%）=64%；Similarly, if three-level is combined, total nitric efficiency is 78.4%；Level Four combines total nitric efficiency
87% ... combination series is more, and the total nitric efficiency in aerobic reactor zone is higher, therefore, it can according to actual requirement of engineering, spirit
Selection series living, greatly improves nitric efficiency.
Preferably, the second through hole is staggered, and the relative position of the second through hole on the adjacent first straight type partition wall is not
Together.
By using above-mentioned technical proposal, the second through hole relative position of adjacent first straight type partition wall is different, can make water
Stream forms S-shaped, to make full use of the capacity in AAO ponds, improves the pond body utilization rate in AAO ponds, obtain more preferable mixed effect and
Reaction effect.
Preferably, the subregion wall between anaerobic reaction area and hypoxia response area is provided with connecting hole, and connecting hole is arranged on
Subregion wall is provided with automatic controlling gate near one end of water inlet manifold, connecting hole.
By using above-mentioned technical proposal, design connecting hole and the variation water quality that the purpose of gate is when treatment sewage
Greatly, to dephosphorization requirement it is low and to denitrogenation requirement it is higher when, by opening automatic controlling gate, it is possible to which anaerobic reaction area is changed
It is hypoxia response area, so as to strengthen denitrification effect, desalinates phosphorus removal functional, has fully demonstrated the flexibility of process operation.
Preferably, the subregion wall between hypoxia response area and aerobic reactor zone is provided with mixed-liquor return pump, and mixed liquor
Reflux pump is arranged on subregion wall near one end of total outlet pipe.
By using above-mentioned technical proposal, according to " aerobic subregion+pre- anoxic subregion+anoxic subregion " assembly
Denitrification effect, the mixed-liquor return pump coordinated signals with setting, can reduce opening time and the quantity of mixed-liquor return pump, greatly
Big reducing energy consumption, directly saves the operating cost of sewage treatment plant, produces huge economic benefit.
Preferably, aerobic subregion, pre- anoxic subregion and the anoxic subregion quantity for being set in aerobic reactor zone are at least
It is three groups, two aerobic subregions is provided with the aerobic reactor zone of mixed-liquor return pump.
By using above-mentioned technical proposal, multistage-combination body is designed, so as to reach in the AAO ponds of certain capacity as far as possible
Ground improves the purpose of the total nitric efficiency of assembly, and two aerobic subregions are set near mixed-liquor return pump, so that backflow
Sewage by fully nitrification, organic matter fully degrades.
Preferably, water inlet pipe is connected on water inlet manifold, the another of water inlet pipe is connected to pre- anoxic subregion.
By using above-mentioned technical proposal, a water inlet pipe to pre- anoxic subregion is connect in water inlet manifold, and rich in nitre
State nitrogen（NO3 --N）Mixed liquor be sufficiently mixed, for the denitrifying bacteria in anoxic subregion provides nutriment, it is ensured that denitrogenation imitate
Rate is unlikely to be reduced due to a lack of nutriment, so as to fundamentally ensure nitric efficiency；Without to adding organic carbon in sewage
Source, saves the operating cost of sewage treatment plant, can produce huge economic benefit, while eliminate organic carbon source and add being
System, makes operation maintenance more easy.
Preferably, pre- anoxic subregion is provided with raw water toss area, and raw water toss area is provided with and adds pipe, adds and be provided with pipe
Autocontrol valve.
By using above-mentioned technical proposal, can automatically control, it is convenient to operate and manage.
To sum up, it is of the present invention it is a kind of suitable for low CN than the modified form AAO ponds that sewage/wastewater is administered, nitric efficiency is high,
Stable water outlet is up to standard；Technological flexibility is strong；Equipment operating load is low, energy consumption is low；Equipment is run and easy maintenance；Low cost, warp
Ji high efficiency.
Brief description of the drawings
Fig. 1 is the schematic diagram in tradition AAO ponds in background technology；
Fig. 2 is the schematic diagram than modified form AAO ponds that sewage/wastewater is administered suitable for low CN.
Reference：1st, anaerobic reaction area；101st, anaerobism subregion；102nd, muddy water mixed zone；2nd, hypoxia response area；3rd, it is good
Oxygen reaction zone；301st, aerobic subregion；302nd, pre- anoxic subregion；303rd, anoxic subregion；4th, subregion wall；401st, first leads to
Hole；402nd, connecting hole；5th, water inlet manifold；501st, water inlet supervisor；502nd, water inlet pipe；6th, mud return line；7th, total outlet pipe；8、
First straight type partition wall；801st, the second through hole；9th, the first diving mixer；10th, the second straight type partition wall；11st, arc partition wall；12nd, dive
Water propeller；13rd, the 3rd straight type partition wall；14th, aerator；15th, the second diving mixer；16th, automatic controlling gate；17th, mix
Liquid reflux pump；18th, raw water toss area；19th, pipe is added；20th, autocontrol valve.
Specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
As shown in Fig. 2 it is a kind of suitable for low CN than the modified form AAO ponds that sewage/wastewater is administered, including anaerobic reaction area 1, lack
Oxygen reaction zone 2 and aerobic reactor zone 3, are split and are connected between three by the subregion wall 4 with first through hole 401, and anaerobism is anti-
Area 1 is answered to connect water inlet manifold 5 and mud return line 6, the connection of aerobic reactor zone 3 total outlet pipe 7.
The first straight type partition wall 8 of the second through hole of some bands 801 is provided with anaerobic reaction area 1, the second through hole 801 staggeredly sets
Put, the relative position of the second through hole 801 on the adjacent first straight type partition wall 8 is different.First straight type partition wall 8 is by anaerobic reaction
Area 1 is divided into several to pass through the anaerobism subregion 101 that the second through hole 801 is connected, and the is equipped with each anaerobism subregion 101
The anaerobism subregion 101 that one diving mixer 9, wherein water inlet manifold 5 are accessed is set to muddy water mixed zone 102.
Subregion wall 4 between anaerobic reaction area 1 and hypoxia response area 2 is provided with connecting hole 402, and connecting hole 402 is set
In subregion wall 4 near one end of water inlet manifold 5, connecting hole 402 is provided with automatic controlling gate 16.
Second straight type partition wall 10, arc partition wall 11 and underwater scooter 12, the second straight type partition wall are set in hypoxia response area 2
10 are located in arc partition wall 11, and arc partition wall 11 is provided with two positioned at the opening of the second straight both sides of type partition wall 10.
Subregion wall 4 between hypoxia response area 2 and aerobic reactor zone 3 is provided with mixed-liquor return pump 17, and mixed liquor is returned
Stream pump 17 is arranged on subregion wall 4 near one end of total outlet pipe 7.
Some three straight type partition walls 13 are provided with aerobic reactor zone 3, one end closing of the 3rd straight type partition wall 13, the other end breaks
Open.Adjacent 3rd straight type partition wall 13 is staggered and aerobic reactor zone 3 is divided into four gallerys of connection, wherein three gallerys
Inside it is designed with one group of aerobic subregion 301 being sequentially arranged, pre- anoxic subregion 302 and anoxic subregion 303, aerobic subregion
It is covered with 301 in aerator 14, anoxic subregion 303 and is provided with the second diving mixer 15, near the corridor of mixed-liquor return pump 17
Two aerobic subregions 301 are provided with road.
Water inlet manifold 5 includes water inlet supervisor 501 and water inlet pipe 502, and water inlet supervisor 501 is connected to muddy water mixed zone 102,
Water inlet pipe 502 is connected to pre- anoxic subregion 302.Pre- anoxic subregion 302 is provided with raw water toss area 18, and raw water toss area 18 sets
There is what is connected with water inlet pipe 502 to add pipe 19, add and autocontrol valve 20 is installed on pipe 19.
Low CN is respectively enterd into water from water inlet manifold 5 than sewage or waste water and is responsible for 501 and water inlet pipe 502, water inlet supervisor
Sewage or waste water in 501 together enters muddy water mixed zone 102 with the sludge in mud return line 6, in the first diving mixer 9
In the presence of be sufficiently mixed in the region；Anaerobism subregion 101 is entered by the second through hole 801 on the first straight type partition wall 8
Carry out, form S-shaped current and be well mixed, in the presence of polyP bacteria, partial organic substances by ammonification, while for poly- phosphorus is prepared；
Then sewage or waste water enters hypoxia response area 2 by the first through hole 401 on subregion wall 4, in the second straight type partition wall 10 and arc
Formed in the presence of shape partition wall 11, underwater scooter 12 and annular water flow and constantly circulated, raw water and from aerobic reactor zone 3 time
Flowing water is thoroughly mixed dilution, forms relatively stable environment；First through hole 401 of the sewage or waste water again from subregion wall 4 is entered
Enter in aerobic reactor zone 3, degraded of denitrogenation, organic pollution etc. is carried out by multistage-combination precursor reactant area, returned by mixed liquor
Stream pump 17 is back to the circular response of hypoxia response area 2；Last sewage or waste water is discharged from total outlet pipe 7.In water inlet pipe 502
Sewage or waste water enters aerobic reactor zone 3 from raw water toss area 18.
According to sewage or waste water processing requirement, by the automatic controlling gate 16 on connecting hole 402 and add on pipe 19
Autocontrol valve 20 flexibly selects the operational mode in AAO ponds, while ensureing that stable water outlet is up to standard, reducing energy consumption, saving
Cost.
This specific embodiment is only explanation of the invention, and it is not limitation of the present invention, people in the art
Member can make the modification without creative contribution to the present embodiment as needed after this specification is read, but as long as at this
All protected by Patent Law in the right of invention.
Claims (7)
1. it is a kind of suitable for low CN than the modified form AAO ponds that sewage/wastewater is administered, including anaerobic reaction area（1）, hypoxia response area
（2）And aerobic reactor zone（3）, by with first through hole between three（401）Subregion wall（4）Split and connect, anaerobism is anti-
Answer area（1）Connection water inlet manifold（5）And mud return line（6）, aerobic reactor zone（3）Connection total outlet pipe（7）, its feature exists
In：Anaerobic reaction area（1）Inside it is provided with the through hole of some bands second（801）The first straight type partition wall（8）, the first straight type partition wall（8）Will
Anaerobic reaction area（1）It is divided into several to pass through the second through hole（801）The anaerobism subregion of connection（101）, each anaerobism sub-district
Domain（101）Inside it is equipped with the first diving mixer（9）, wherein water inlet manifold（5）The anaerobism subregion of access（101）It is set to mud
Water mixed zone（102）, hypoxia response area（2）The second straight type partition wall of interior setting（10）, arc partition wall（11）And underwater scooter
（12）, the second straight type partition wall（10）Positioned at arc partition wall（11）It is interior, arc partition wall（11）It is provided with and the second straight type partition wall is located at two
（10）The opening of both sides, aerobic reactor zone（3）Inside it is provided with some three straight type partition walls（13）, the 3rd straight type partition wall（13）One end
Closing, the other end disconnects, and adjacent 3rd straight type partition wall（13）It is staggered and by aerobic reactor zone（3）It is divided into some connections
Gallery, one group of aerobic subregion being sequentially arranged is designed with each gallery（301）, pre- anoxic subregion（302）And anoxic
Subregion（303）, aerobic subregion（301）Inside it is covered with aerator（14）, anoxic subregion（303）Inside it is provided with the second submersible agitating
Machine（15）.
2. it is according to claim 1 it is a kind of suitable for low CN than modified form AAO ponds that sewage/wastewater is administered, it is characterised in that：
Second through hole（801）It is staggered, positioned at the adjacent first straight type partition wall（8）On the second through hole（801）Relative position
It is different.
3. it is according to claim 1 it is a kind of suitable for low CN than modified form AAO ponds that sewage/wastewater is administered, it is characterised in that：
The anaerobic reaction area（1）With hypoxia response area（2）Between subregion wall（4）It is provided with connecting hole（402）, and connecting hole
（402）It is arranged on subregion wall（4）Near water inlet manifold（5）One end, connecting hole（402）It is provided with automatic controlling gate（16）.
4. it is according to claim 1 it is a kind of suitable for low CN than modified form AAO ponds that sewage/wastewater is administered, it is characterised in that：
The hypoxia response area（2）With aerobic reactor zone（3）Between subregion wall（4）It is provided with mixed-liquor return pump（17）, and mixing
Liquid reflux pump（17）It is arranged on subregion wall（4）Near total outlet pipe（7）One end.
5. it is according to claim 4 it is a kind of suitable for low CN than modified form AAO ponds that sewage/wastewater is administered, it is characterised in that：
The aerobic reactor zone（3）The aerobic subregion of interior setting（301）, pre- anoxic subregion（302）With anoxic subregion（303）Number
Amount is at least three groups, near mixed-liquor return pump（17）Aerobic reactor zone（3）Inside it is provided with two aerobic subregions（301）.
6. it is according to claim 1 it is a kind of suitable for low CN than modified form AAO ponds that sewage/wastewater is administered, it is characterised in that：
The water inlet manifold（5）On be connected to water inlet pipe（502）, water inlet pipe（502）Another be connected to pre- anoxic subregion
（302）.
7. it is according to claim 1 it is a kind of suitable for low CN than modified form AAO ponds that sewage/wastewater is administered, it is characterised in that：
The pre- anoxic subregion（302）It is provided with raw water toss area（18）, raw water toss area（18）It is provided with and adds pipe（19）, add pipe
（19）On autocontrol valve is installed（20）.
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| CN201710121330.XA CN106830322A (en) | 2017-03-02 | 2017-03-02 | It is a kind of suitable for low CN than modified form AAO ponds that sewage/wastewater is administered |
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Application publication date: 20170613 |