CN105254008B - A kind of circulation flow ring-shaped multistage Activated sludge-biofilm composite type bioreactor and its sewage treatment process - Google Patents
A kind of circulation flow ring-shaped multistage Activated sludge-biofilm composite type bioreactor and its sewage treatment process Download PDFInfo
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Abstract
The present invention relates to a kind of circulation flow ring-shaped multistage Activated sludge-biofilm composite type bioreactor and its sewage treatment process, the reactor includes anaerobic zone, the supporting area of two-stage above Anoxic/Aerobic, settling zone, the supporting area of Anoxic/Aerobic includes the anoxic zone and aerobic zone set up successively, floating stuffing area is equipped with the aerobic zone, the anaerobic zone is provided with sewage inlet and sludge inlet, the anoxic zone is provided with sewage inlet, the settling zone is provided with sewage outfall and sludge outlet, the sludge outlet connects the sludge inlet of the anaerobic zone by returned sludge pipeline.Optimum organization using the circulation flow ring-shaped multistage Activated sludge-biofilm composite type bioreactor sewage treatment process by reactor, can effectively realize that high-efficient denitrification and dephosphorization, control pond hold, reduce floor space, reducing project cost and reduce operating cost.
Description
Technical field
The present invention relates to a kind of circulation flow ring-shaped multistage Activated sludge-biofilm composite type bioreactor and its sewage treatment process,
Belong to sewage treatment field.
Background technology
In April, 2015 newest issue《Water prevention and cure of pollution action plan》Clearly propose, existing urban wastewater treatment facility,
Want adaptation to local conditions to be transformed, corresponding discharge standard or regeneration requirement are reached before the year two thousand twenty bottom.Sensitizing range (emphasis lake
Pool, emphasis reservoir, immediate offshore area watershed) urban wastewater treatment facility should reach comprehensively before the end of the year 2017 level-one A discharge
Standard, built-up areas water quality do not reach the city of IV class standard of surface water, and newly-merged university sewage treatment facility will perform level-one A
Discharge standard；To the year two thousand thirty, strive that National Water Environmental quality totally improves, aquatic ecosystem function is tentatively recovered.To this century
Middle period, eco-environmental quality improve comprehensively, and the ecosystem realizes benign cycle.It follows that coming few decades energy-saving emission reduction
It is required that can be higher and higher.
On the one hand, it is still to design and transport according to pollutant emission standard level-one B standard for current numerous sewage treatment plants
Capable present situation, with the deep progress of national energy-saving emission reduction work, the upgrading of sewage treatment plant and optimization operation gesture are must
OK.In sewage disposal upgrading, it is most conventional and most reliable scheme to expand pond and perhaps increase advanced treatment unit, but very
More sewage treatment plants create sewage treatment unit without sufficient factory site, and the stringent Arable-land Protection Policies in China do not allow again
The random enlarged-area of sewage treatment plant, therefore the upgrading scheme that floor space is small, disposal ability is high there is an urgent need to seeking one, when
It is preceding mainly to have biological aerated filter, contact oxidation method, membrane bioreactor, but also there is high investment, energy consumption and fortune in these techniques
The problems such as row is of high cost, therefore, it is very necessary that research and development efficient low-consume low cost sewage disposal puies forward mark upgrading technology.
On the other hand, the fast development in city make it that the sewage treatment plant away from urban district is progressively incorporated to urban district originally, transforms
Or using land limited during creating, therefore seek a kind of reduced investment, can effectively control the technology of pond appearance increasingly to compel
Cut.
This technology is intended to key breakthrough transformation or create sewage treatment plant carries mark renovation technique, completes waste water stably reaching standard
Discharge.
Multistage AO：Biological reaction pool is designed as front end anaerobic zone/aerobic+multi-stage anaerobic/aerobic zone by multistage AO techniques, is adopted
With multiple spot water distribution technology, multistage is divided to be incorporated the front end to anaerobic zone and each anoxic zone respectively in sewage, and returned sludge all returns
Anaerobic zone front end is flowed to, the environment for being more suitable for polyP bacteria, nitrifier and denitrifying bacterium growth and breeding is created, greatly strengthen and remove
Phosphorus denitrification ability.
IFAS：IFAS techniques are a kind of works for being combined the biofilm of apposition growth with the activated sludge process of suspension growth
Skill, specific is that floating stuffing is put into activated sludge process, dirty by the biomembrane on floating stuffing and the activity to suspend
Mud removes the pollutant in water removal jointly, and since floating stuffing is to the dissection of bubble, can improve water oxygen transfer efficiency,
Strengthen treatment effect.
In addition, the modes such as IFAS techniques are by being aerated disturbance, liquid flows back, make filler suspend in the reactor, due to solid
The biomass being scheduled on filler does not increase the mixed liquid concentration of activated sludge, and the growth of biomembrane can reduce system SVI, because
The performance of this downstream sedimentation basin will not only be subject to the increased negative effect of solid loading in activated sludge reactor, but also its property
It can be able to a degree of raising.
It is of the invention that fully with reference to two kinds of process advantages of multistage AO and IFAS, (IFAS floor spaces are small, improve activated sludge mixes
Close liquid concentration, mud decrement and sludge settling property can be improved, do not increase that secondary settling tank load, buffer capacity be strong and multistage AO sludge
The advantages such as concentration is high, utilization of carbon source is abundant, nitric efficiency is high, capacity of resisting impact load is strong, operating cost is few, construction investment is low),
Biochemical treatment is carried out to the sewage of sewage treatment plant, to reach preferably effluent quality.
The content of the invention
The shortcomings that it is an object of the invention to overcome the prior art, there is provided a kind of circulation flow ring-shaped multistage Activated sludge-biofilm is compound
Formula bioreactor and its sewage treatment process, it is dirty using the circulation flow ring-shaped multistage Activated sludge-biofilm composite type bioreactor
Water treatment technology can effectively realize that high-efficient denitrification and dephosphorization, control pond hold, reduce occupation of land face by the optimum organization of reactor
Product, reduce project cost and reduce operating cost.
The present invention is achieved by the following technical solutions：
First aspect present invention provides a kind of circulation flow ring-shaped multistage Activated sludge-biofilm composite type bioreactor, selected from following
Reactor it is any：
Reactor one：Including the anaerobic zone, the supporting area of two-stage above Anoxic/Aerobic, settling zone set up successively, the anoxic
Aerobic supporting area includes the anoxic zone and aerobic zone set up successively, being equipped with partition wall between adjacent twoth area, one end of the partition wall is set
There is water hole, be equipped with floating stuffing area in the aerobic zone, the anaerobic zone is provided with sewage inlet and sludge inlet, institute
State anoxic zone and be provided with sewage inlet, the settling zone is provided with sewage outfall and sludge outlet, the sludge discharge
Mouth connects the sludge inlet of the anaerobic zone by returned sludge channel；
Reactor two：Match somebody with somebody including the anaerobic zone set up successively and the supporting area of two-stage above Anoxic/Aerobic, the Anoxic/Aerobic
Set area includes the anoxic zone and aerobic zone set up successively, being equipped with partition wall between adjacent twoth area, one end of the partition wall was equipped with water
Hole, is equipped with floating stuffing area in the aerobic zone, the anaerobic zone and the closing connection of afterbody aerobic zone and the inside that is formed
Space is settling zone, and the settling zone is provided with water hole with afterbody aerobic zone contact surface, and the anaerobic zone is set
There are sewage inlet and sludge inlet, the anoxic zone is provided with sewage inlet, and the settling zone is provided with sewage outflow
Mouth and sludge outlet, the sludge outlet pass through the sludge inlet that returned sludge channel connects the anaerobic zone.
Preferably, in the reactor two, the anaerobic zone connects with the closing of afterbody aerobic zone and forms annulus, institute
The inner space for stating annulus is settling zone.
Preferably, the anaerobic zone is provided with water conservancy diversion partition wall, and anaerobic zone is divided into anaerobic zone A by the water conservancy diversion partition wall
With anaerobic zone B；The water conservancy diversion partition wall is provided at both ends with two deflector holes.
Preferably, the anoxic zone is provided with water conservancy diversion partition wall, is divided into the anoxic zone by the water conservancy diversion partition wall scarce
Oxygen area A and anoxic zone B；The water conservancy diversion partition wall is provided at both ends with two deflector holes.
Preferably, the aerobic zone is provided with water conservancy diversion partition wall, and aerobic zone is divided into aerobic zone A by the water conservancy diversion partition wall
With aerobic zone B；The water conservancy diversion partition wall is provided at both ends with two deflector holes.
Preferably, the floating stuffing area includes floating stuffing and floating stuffing device for trapping.
Preferably, the anaerobic zone and the anoxic zone are provided with submersible agitator.It is furthermore preferred that the diving of anaerobic zone stirs
It is stirred type to mix device；The submersible agitator of anoxic zone is push flowing.
Preferably, the aerobic zone is provided with submersible agitator, or mixing sludge low depending on aeration intensity, filler fluidisation shape
Set when state is poor.More preferably, the submersible agitator of aerobic zone is push flowing.
Preferably, the anoxic zone and the aerobic zone are provided with aerating system.It is furthermore preferred that the anoxic zone and aerobic
The aerating system in area is made of plate-type aerator, diameter D260 (200~300), and single maximal ventilatory volume is 4m3/ h (2.3~
5.9)；The aerator includes stent, material ABS, subsidiary bilateral buckle.
Second aspect of the present invention provides a kind of circulation flow ring-shaped multistage Activated sludge-biofilm composite type bioreactor sewage disposal
Technique, to carry out sewage disposal by above-mentioned circulation flow ring-shaped membrane bioreactor；The sewage treatment process includes following
Step：
(A) sewage enters the reactor by two parts, and Part I is entered by the sewage inlet of anaerobic zone to be detested
Oxygen area, Part II respectively enter anoxic zones at different levels by the sewage inlet of anoxic zones at different levels；
(B) sewage of the sewage inlet from anaerobic zone and the returned sludge mixing from settling zone, anaerobic zone cohesion
Phosphorus bacterium releases phosphorus under anaerobic environment, while converts degradable organic pollution, and part itrogenous organic substance is carried out ammonification；
(C) subsequently into the supporting area of two-stage above Anoxic/Aerobic, denitrification denitrogenation is carried out in anoxic zones at different levels, part is organic
Thing is degraded removal under the action of denitrifying bacterium；Floating stuffing area is equipped with aerobic zones at different levels, carries out the further drop of organic matter
Solution and the ammonification nitrification of organic nitrogen and the absorption of phosphorus；
(D) water outlet of afterbody aerobic zone drains into settling zone, is discharged by mud-water separation purified water, thickened sludge one
Divide and be back to anaerobic zone, another part drains into sludge concentration and dewatering system.
Preferably, the anaerobic zone includes anaerobic zone A and anaerobic zone B；Sewage initially enters anaerobic zone A, in the A of anaerobic zone
Flowed under the stirring impetus of the submersible agitator of setting, subsequently into the diving in the B of anaerobic zone, set in the B of anaerobic zone
Flowed under the stirring impetus of blender；Then a part is recycled in the A of anaerobic zone, is partly into first order anoxic zone.
Preferably, anoxic zones at different levels include anoxic zone A and anoxic zone B；The submersible agitator that sewage is set in the A of anoxic zone
Stirring impetus under flow, subsequently into anoxic zone B, the stirring of the submersible agitator set in the B of anoxic zone, which promotes, to be made
With lower flowing, then a part is recycled in the A of anoxic zone, is partly into aerobic zone.
Preferably, aerobic zones at different levels include aerobic zone A and aerobic zone B；Aerobic zone A and aerobic zone B is equipped with floating stuffing area；
Sewage initially enters aerobic zone A, and subsequently into aerobic zone B, a part is recycled in the A of aerobic zone, be partly into anoxic zone or
Settling zone.
It is furthermore preferred that aerobic zones at different levels include aerobic zone A and aerobic zone B；Aerobic zone A and aerobic zone B is equipped with floating stuffing
Area；Sewage initially enters aerobic zone A, is flowed under the stirring impetus of the submersible agitator set in the A of aerobic zone, Ran Houjin
Enter aerobic zone B, flowed under the stirring impetus of the submersible agitator set in the B of aerobic zone, then part circulation most intimate friend
In oxygen area A, anoxic zone or settling zone are partly into.
Sewage enters afterbody aerobic zone A, and the stirring of the submersible agitator set in the A of afterbody aerobic zone promotes
The lower flowing of effect, subsequently into afterbody aerobic zone B, the stirring of the submersible agitator set in the B of afterbody aerobic zone
Flowed under impetus, then a part is recycled in the A of afterbody aerobic zone, is partly into settling zone.
Preferably, the packing ratio in the floating stuffing area is 30~60%；The floating stuffing is polyethylene, polypropylene
Or polyurethane, particle diameter are 15mm~100mm, bulk specific weight is 0.96 ± 2g/cm3, specific surface area>500m2/m3；The suspension
Filler device for trapping by stainless steel it is porous retention net form, retain net Circularhole diameter 8mm~20mm, center of circular hole away from for 10mm~
50mm, retention net both sides base portion respectively install the thick bubble diffuser of a row.
Preferably, a thickened sludge part is back to the return sludge ratio 50~100% of anaerobic zone；The average dirt of reaction zone
8000~14000mg/L of mud concentration.
Preferably, the stirring intensity of anaerobic zone is 4~5W/m3, the stirring intensity of anoxic zone is 1~3W/m3。
Preferably, the aerobic zone is equipped with aerating system, and aerobic zone aeration intensity is 8~10m3/(m2H), wherein close to
Reserve 10~20% aerobic zone aerators in the next stage anoxic zone of aerobic zone.
Preferably, the anoxic zone is equipped with aerating system, and anoxic zone aeration intensity is 2~10m3/(m2·h)。
Preferably, the hydraulic detention time of the anaerobic zone is 1~2h；The hydraulic detention time of the anoxic zone is 0.5
~3h；The hydraulic detention time of the aerobic zone is 3.5~5h.
Preferably, the denitrification load values scope of the anoxic zone is 0.03~0.06kgNO3-N/(kgMLSS·d)；
The sludge loading value is 0.05~0.15kg BOD5/(kgMLSS·d)。
The present invention circulation flow ring-shaped multistage Activated sludge-biofilm composite type bioreactor and its sewage treatment process, have with
Lower beneficial effect：
(1) method of operation is flexible, and denitrogenation dephosphorizing is efficient.Multipoint water feeding mode can make the multistage distribution of pollutant, each reaction
Area can form obvious sludge concentration gradient according to pollutant characteristic, and the method for operation is flexible；Created by the segmentation of reaction zone
The environment of each quasi-microorganism suitable growth in suitable activity sludge is made, realizes high-efficient denitrification and dephosphorization；Close to the next stage of aerobic zone
Anoxic zone sets air system, and conventional A can be reduced into according to water quality2O process operations；
(2) for hydraulic flow state in " section cyclic mixing, overall plug-flow ", hybrid reaction effect is preferable.Each area's reactor uses
The fluidised form of recycle stream, is provided simultaneously with the anti impulsion load ability of complete mix flow and the substrate degradation of plug flow reactor
Motive force；Each area's reactor uses recycle stream mode, and water inlet water-flow equation is uniform, and torrent, vortex, short is not likely to produce in reactor
Stream, stagnant water and deposition phenomenon, the loss of flood peak is smaller, and degree of the mixing well height of micromixing, hybrid reaction effect are preferable；
(3) strong shock resistance.First, reasonable distribution can be carried out to pollution sources by multipoint water feeding mode, ensured each anti-
Answer the more suitable sludge loading in area；Secondly, can be to activity when the biomembrane aging on floating stuffing sheds into mixed liquor
Sludge plays the role of inoculation, is improved the capacity of resisting impact load of reaction tank；Finally, by the organic knot of various hybrid modes
Close, can also improve applicable ability of the system processing to different sewage water quality；
(4) sludge settling property strengthens, and excess sludge production is reduced.It is dense that floating stuffing can effectively improve reaction tank sludge
Degree, the microbial biomass of raising due to being fixed on filling carrier, not but not increase activated sludge mixed liquid concentration and downstream
The solid loading of sedimentation basin, and SVI can be reduced, improve sludge settling property；Simultaneously because floating stuffing sludge concentration is high, it is dirty
The increase of mud sludge age, corresponding excess sludge production can be reduced；
(5) construction investment is low.The biomass of floating stuffing layer enables pollutant biochemical treatment to be completed in smaller space,
The pond that reaction tank is greatly lowered holds (about 45%), and construction investment is low (about 15%)；
(6) operation energy consumption is low.First, multipoint water feeding, the aerobic carry out nitration denitrification of multi-stage anaerobic, optimization carbon source point are utilized
With the nitrification liquid reflux facility for cancelling conventional art at the same time with strengthened denitrification, operation energy consumption is minimized；Secondly, exposed using micropore
Gas equipment, power energy consumption combine recycle stream waterpower form far below common perforation or mesoporous aerating system, can solve to be oxygenated
Contradiction between stirring, is conducive to recycle reaction tank end dissolved oxygen, and capacity usage ratio is high；3rd, with reference to
Plug-flow, the bioflocculation in reactor use relatively low motive force, can save energy consumption；
(7) pipe-line system is few, and Maintenance and Repair amount is small.Designed, eliminated dirty into water, reflux by internal channel laminated construction
Mud pipe-line system, Maintenance and Repair amount are small.
Brief description of the drawings
Fig. 1 is a kind of circulation flow ring-shaped multistage Activated sludge-biofilm composite type bioreactor sewage treatment process figure；
Fig. 2 is a kind of circulation flow ring-shaped multistage Activated sludge-biofilm composite type bioreactor overlooking the structure diagram of square；
Brief description of the drawings：
1- anaerobic zones；1a- anaerobic zones A；1b- anaerobic zones B；
2- first order anoxic zone；2a- first order anoxic zone A；2b- first order anoxic zone B；
3- first order aerobic zone；3a- first order aerobic zone A；3b- first order aerobic zone B；(area containing floating stuffing)；
4- second level anoxic zone；4a- second level anoxic zone A；4b- second level anoxic zone B；
5- second level aerobic zone；5a- second level aerobic zone A；5b- second level aerobic zone B；(area containing floating stuffing)；
6- settling zones；6a- settling zones sewage outfall；6b- settling zones sludge outlet；
7- sewage inlets；7a- anaerobic zones sewage inlet；7b- first order anoxic zone sewage inlet；The 7c- second level
Anoxic zone sewage inlet；
8- returned sludge channels；The sludge inlet of 8a- anaerobic zones；
Water conservancy diversion partition wall between 9- anaerobic zones A and anaerobic zone B；10- anaerobic zones and the division wall of first order anoxic zone；11-
Water conservancy diversion partition wall between level-one anoxic zone A and first order anoxic zone B；12- first order anoxic zone and the division wall of first order aerobic zone；
Water conservancy diversion partition wall between 13- first order aerobic zone A and first order aerobic zone B；Between 14- first order aerobic zone and second level anoxic zone
Partition wall；Water conservancy diversion partition wall between 15- second level anoxic zone A and second level anoxic zone B；16- second level anoxic zone and the second level are aerobic
The division wall in area；Water conservancy diversion partition wall between 17- second level aerobic zone A and second level aerobic zone B；18- second level aerobic zone and precipitation
The division wall in area；
The deflector hole of 19＆20- anaerobic zones；The water hole of 21- anaerobic zones to first order anoxic zone；22＆23- first order anoxics
The deflector hole in area；The water hole of 24- first order anoxic zone to first order aerobic zone；The deflector hole of 25＆26- first order aerobic zone；
The water hole of 27- first order aerobic zone to second level anoxic zone；The deflector hole of 28＆29- second level anoxic zone；The 30- second level lacks
The water hole of oxygen area to second level aerobic zone；The deflector hole of 31＆32- second level aerobic zone；33- second level aerobic zone to settling zone
Deflector hole；
34- floating stuffings；35- floating stuffing device for trapping；36- diving mixers (underwater scooter)；
Fig. 3 is a kind of round circulation flow ring-shaped multistage Activated sludge-biofilm composite type bioreactor overlooking the structure diagram.
Brief description of the drawings：
1- anaerobic zones；1a- anaerobic zones A；1b- anaerobic zones B；
2- first order anoxic zone；2a- first order anoxic zone A；2b- first order anoxic zone B；
3- first order aerobic zone；3a- first order aerobic zone A；3b- first order aerobic zone B；(area containing floating stuffing)；
4- second level anoxic zone；4a- second level anoxic zone A；4b- second level anoxic zone B；
5- second level aerobic zone；5a- second level aerobic zone A；5b- second level aerobic zone B；(area containing floating stuffing)；
6- third level anoxic zone；6a- third level anoxic zone A；6b- third level anoxic zone B；
7- third level aerobic zone；7a- third level aerobic zone A；7b- third level aerobic zone B；(area containing floating stuffing)；
8- settling zones；
9- inlet channels；9a- anaerobic zones sewage inlet；9b- first order anoxic zone sewage inlet；9c- second level anoxic
Area's sewage inlet；9d- third level anoxic zone sewage inlet；
10- returned sludge channels；
11- third level aerobic zone and the division wall of anaerobic zone；Water conservancy diversion partition wall between 12- anaerobic zones A and anaerobic zone B；13- detests
Oxygen area and the division wall of first order anoxic zone；Water conservancy diversion partition wall between 14- first order anoxic zone A and first order anoxic zone B；15-
Level-one anoxic zone and the division wall of first order aerobic zone；Water conservancy diversion partition wall between 16- first order aerobic zone A and first order aerobic zone B；
17- first order aerobic zone and the division wall of second level anoxic zone；Water conservancy diversion between 18- second level anoxic zone A and second level anoxic zone B
Partition wall；19- second level anoxic zone and the division wall of second level aerobic zone；20- second level aerobic zone A and second level aerobic zone B it
Between water conservancy diversion partition wall；21- second level aerobic zone and the division wall of third level anoxic zone；22- third level anoxic zone A and third level anoxic
Water conservancy diversion partition wall between area B；23- third level anoxic zone and the division wall of third level aerobic zone；24- third level aerobic zone A and the 3rd
Water conservancy diversion partition wall between level aerobic zone B；
The deflector hole of 25＆26- anaerobic zones；The water hole of 27- anaerobic zones to first order anoxic zone；28＆29- first order anoxics
The deflector hole in area；The water hole of 30- first order anoxic zone to first order aerobic zone；The deflector hole of 31＆32- first order aerobic zone；
The water hole of 33- first order aerobic zone to second level anoxic zone；The deflector hole of 34＆35- second level anoxic zone；The 36- second level lacks
The water hole of oxygen area to second level aerobic zone；The deflector hole of 37＆38- second level aerobic zone；39- second level aerobic zone is to the third level
The water hole of anoxic zone；The deflector hole of 40＆41- third level anoxic zone；Water is crossed in 42- third level anoxic zone to third level aerobic zone
Hole；The deflector hole of 43＆44- third level aerobic zone；
45- floating stuffing device for trapping；46- floating stuffings；47- submersible agitators (underwater scooter)；
The partition wall of 48- settling zones and anaerobic zone, anoxic zone and aerobic zone；
49- settling zones sewage inlet.
Embodiment
The flow chart of the circulation flow ring-shaped multistage Activated sludge-biofilm composite type bioreactor sewage treatment process of the present invention is shown in
Shown in Fig. 1, with reference to two kinds of process advantages of multistage AO and IFAS, biochemical treatment is carried out to the sewage of sewage treatment plant, with reach compared with
Excellent effluent quality.
Illustrate technical scheme below by way of specific instantiation.It is to be understood that the present invention mention one or
Multiple method and steps do not repel before and after the combination step that also there are other methods step or the step specifically mentioned at these
Other methods step can also be inserted between rapid；It should also be understood that these embodiments are merely to illustrate the present invention rather than limitation
The scope of the present invention.Moreover, unless otherwise indicated, the numbering of various method steps is only to differentiate the convenient tool of various method steps,
Rather than ordering or the enforceable scope of the restriction present invention, the change of its relativeness or tune for limitation various method steps
It is whole, in the case where changing technology contents without essence, when being also considered as the enforceable category of the present invention.
Below in conjunction with attached drawing and specific implementation case, the invention will be further described.
Embodiment 1
A kind of as shown in Fig. 2, circulation flow ring-shaped multistage Activated sludge-biofilm composite type bioreactor (CCMAO-IFAS) (side
Type), including anaerobic zone 1, first order anoxic zone 2, first order aerobic zone 3, second level anoxic zone 4, second level aerobic zone 5 and precipitation
Area 6, anaerobic zone are provided with sewage inlet 7a and sludge inlet 8a, and first order anoxic zone 2 is provided with the dirt of first order anoxic zone
Water inlet 7b, second level anoxic zone 4 are provided with second level anoxic zone sewage inlet 7c, and settling zone 6 is provided with settling zone dirt
Water export 6a and settling zone sludge outlet 6b, settling zone sludge outlet 6b connect anaerobic zone by returned sludge channel 8
Sludge inlet 8a；Reactor is square；Influent weir and regulating gate is set to distribute sewage to anaerobism respectively on 7 inlet channels
Area 1, first order anoxic zone 2 and second level anoxic zone 4；Anaerobic zone 1 includes anaerobic zone A1a and anaerobic zone B1b, anaerobic zone A1a and
Anaerobic zone B1b is separated by water conservancy diversion partition wall 9, and water conservancy diversion partition wall 9 is provided at both ends with deflector hole 19＆20, and current then pass through deflector hole
19＆20 is connected, and inside sets submersible agitator 36 to stir and promotes；Anaerobic zone 1 and first order anoxic zone 2 are separated by partition wall 10,
One end of partition wall 10 is equipped with water hole 21, and 1 sewage of anaerobic zone is connected by water hole 21 with first order anoxic zone 2；The first order lacks
Oxygen area 2 includes first order anoxic zone A2a and first order anoxic zone B2b, first order anoxic zone A2a and first order anoxic zone B2b leads to
Water conservancy diversion partition wall 11 to be crossed to separate, water conservancy diversion partition wall 11 is provided at both ends with deflector hole 22＆23, and current are then connected by deflector hole 22＆23,
Inside sets submersible agitator 36 to stir and promotes and micro-pore aeration equipment；First order anoxic zone 2 and first order aerobic zone 3 by every
Wall 12 separates, and one end of partition wall 12 is equipped with water hole 24, and first order anoxic zone 2 is connected by water hole 24 and first order aerobic zone 3
It is logical；First order aerobic zone 3 includes first order aerobic zone A3a and first order aerobic zone B3b, first order aerobic zone A3a and the first order
Aerobic zone B3b is separated by water conservancy diversion partition wall 13, and water conservancy diversion partition wall 13 is provided at both ends with deflector hole 25＆26, and current then pass through water conservancy diversion
Hole 25＆26 is connected, while is circulated around water conservancy diversion partition wall 13；Floating stuffing area is equipped with first order aerobic zone 3 and micropore exposes
Gas equipment, floating stuffing area include floating stuffing 34 and floating stuffing device for trapping 35, and floating stuffing 34 is cut by floating stuffing
Device 35 is stayed to be fixed on specified region；First order aerobic zone 3 and second level anoxic zone 4 are separated by partition wall 14, and the one of partition wall 14
End is equipped with water hole 27, and 3 sewage of first order aerobic zone is connected by water hole 27 with second level anoxic zone 4；Second level anoxic zone 4
Including second level anoxic zone A4a and second level anoxic zone B4b, second level anoxic zone A4a and second level anoxic zone B4b pass through water conservancy diversion
Partition wall 15 separates, and water conservancy diversion partition wall 15 is provided at both ends with deflector hole 28＆29, and current are then connected by deflector hole 28＆29, and inside is set
The stirring of submersible agitator 36 is put to promote and micro-pore aeration equipment；Second level anoxic zone 4 and second level aerobic zone 5 are divided by partition wall 16
Every one end of partition wall 16 is equipped with water hole 30, and 4 sewage of second level anoxic zone is connected by water hole 30 with second level aerobic zone 5；
Second level aerobic zone 5 includes second level aerobic zone A5a and second level aerobic zone B5b, second level aerobic zone A5a and the second level are aerobic
Area B5b is separated by water conservancy diversion partition wall 17, and water conservancy diversion partition wall 17 is provided at both ends with deflector hole 31＆32, and current then pass through deflector hole 31＆
32 connections, while circulated around water conservancy diversion partition wall 17；Floating stuffing area is equipped with second level aerobic zone 5 and micro-pore aeration is set
Standby, floating stuffing area includes floating stuffing 34 and floating stuffing device for trapping 35, and floating stuffing 34 is retained by floating stuffing and filled
Put 35 and be fixed on specified region；Second level aerobic zone 5 and settling zone 6 are separated by partition wall 18, and one end of partition wall 18 was equipped with water
Hole 33,5 sewage of second level aerobic zone are connected by water hole 33 with settling zone 6；6 thickened sludge of settling zone passes through returned sludge canal
Road 8 is back to 1,8 returned sludge channel of anaerobic zone and sets regulating gate.
Using circulation flow ring-shaped multistage Activated sludge-biofilm composite type bioreactor (CCMAO-IFAS) (square) place of such as Fig. 1
Manage 40000m3/ d town sewages, treatment process comprise the following steps：
(1) sewage enters reactor by two parts, and Part I enters anaerobism by the sewage inlet 7a of anaerobic zone
Area 1, Part II are distinguished by first order anoxic zone sewage inlet 7b and second level anoxic zone sewage inlet 7c in proportion
Into first order anoxic zone 2 and second level anoxic zone 4；Into first order anoxic zone and the water flow ratio for entering second level anoxic zone
For 2：3.
(2) sewage from anaerobic zone sewage inlet 7a and the returned sludge mixing from settling zone, initially enter and detest
Oxygen area A1a, flows under the stirring impetus of the submersible agitator set in the A1a of anaerobic zone, subsequently into the B of anaerobic zone,
Flowed under the stirring impetus of the submersible agitator set in the B of anaerobic zone；Then a part is recycled in the A of anaerobic zone, and one
Part enters polyP bacteria in the anaerobic zone of first order anoxic zone and phosphorus is released under anaerobic environment, while converts degradable organic contamination
Thing, and part itrogenous organic substance is subjected to ammonification；
(3) anoxic zone and aerobic zone are included subsequently into the supporting area of two-stage Anoxic/Aerobic, the supporting area of every grade of Anoxic/Aerobic, respectively
Level anoxic zone includes anoxic zone A and anoxic zone B；Under the stirring impetus for the submersible agitator that sewage is set in the A of anoxic zone
Flowing, subsequently into anoxic zone B, flows, then one under the stirring impetus of the submersible agitator set in the B of anoxic zone
Divide and be recycled in the A of anoxic zone, be partly into aerobic zone.Aerobic zones at different levels include aerobic zone A and aerobic zone B；Aerobic zone A and/
Or aerobic zone B is equipped with floating stuffing area；Sewage initially enters aerobic zone A, and subsequently into aerobic zone B, a part is recycled to aerobic
In area A, anoxic zone or settling zone are partly into, carries out denitrification denitrogenation in anoxic zones at different levels, partial organic substances are in denitrification
Degrade and remove under the action of bacterium；Floating stuffing area is equipped with aerobic zones at different levels, carries out the further degraded of organic matter and organic
The ammonification nitrification of nitrogen and the absorption of phosphorus；
(4) water outlet of afterbody aerobic zone drains into settling zone, is discharged by mud-water separation purified water, thickened sludge one
Divide and be back to anaerobic zone, another part drains into sludge concentration and dewatering system.
34 floating stuffing packing ratios are 35%；14 floating stuffing materials are polyethylene, particle diameter 25mm, bulk specific weight 0.96 ±
2g/cm3, specific surface area>500m2/m3；35 floating stuffing device for trapping are made of the porous retention net of stainless steel, and retention net circular hole is straight
Footpath 8mm, center of circular hole is away from for 10mm, each installation thick bubble diffuser of one row of retention net both sides base portion.Anaerobic zone submersible agitator
For stirred type；Anoxic zone and aerobic zone submersible agitator are push flowing.Anoxic zone and aerobic zone aerating system are by plate-type aerator
Composition, diameter D250, single maximal ventilatory volume is 4m3/h；Aerator includes stent, material ABS, subsidiary bilateral buckle.
Reaction zone return sludge ratio 100% (actual motion 50~100%)；Reaction zone mean sludge concentration 8360mg/L
(actual 7000~12000mg/L)；Anaerobic zone stirring intensity 5W/m3, configure 4 mixers, separate unit power 2.2kW；Anoxic zone
Stirring intensity 2.5W/m3, configure 8 mixers, separate unit power 1.1kW；Aerobic zone 8~10m of aeration intensity3/(m2H), arrange
Microporous aeration disc 2500, anoxic zone 2 reserve 10~20% aerobic zone aerators and (are reduced into conventional A2This area of O state of the art is pressed
Aerobic operation).
Anaerobic zone hydraulic detention time is 1h；Anoxic zone hydraulic detention time is 2.3h；Aerobic zone hydraulic detention time is
3.8h.The denitrification load values scope of anoxic zone is 0.03kgNO3- N/ (kgMLSSd) (actual motion 0.03~
0.05kgNO3-N/(kgMLSS·d))；Sludge loading value is 0.108kg BOD5/ (kgMLSSd) (actual motion 0.05~
0.15kg BOD5/(kgMLSS·d))。
Structure of reactor size (except settling zone)：(totally 1, be divided to two to L × B × H=50 × 40 × 7m (available depth 6m)
Group operation).
Implementation result：
Design influent quality：
CODCr：330mg/L；BOD5：150mg/L；TN：40mg/L；NH3-N：35mg/L；SS：300mg/L；TP：5mg/L；
Main effluent quality can reach after sewage treatment process of the present invention processing《Urban wastewater treatment firm pollutant is arranged
Put standard》(GB18918-2002) level-one A is below the mark.
Operation energy consumption：0.19~0.21kW.h/m3。
Embodiment 2
A kind of as shown in figure 3, circulation flow ring-shaped multistage Activated sludge-biofilm composite type bioreactor (CCMAO-IFAS) (circle
Type), including anaerobic zone 1, first order anoxic zone 2, first order aerobic zone 3, second level anoxic zone 4, second level aerobic zone the 5, the 3rd
Level anoxic zone 6, third level aerobic zone 7 and settling zone 8, anaerobic zone are provided with sewage inlet 9a and sludge inlet, the first order
Anoxic zone 2 is provided with first order anoxic zone sewage inlet 9b, and second level anoxic zone 4 is provided with the sewage injection of second level anoxic zone
Mouth 9c, third level anoxic zone 6 are provided with third level anoxic zone sewage inlet 9d, and settling zone 8 is provided with settling zone sewage outflow
Mouth and settling zone sludge outlet, settling zone sludge outlet pass through the sludge injection that returned sludge channel 10 connects anaerobic zone
Mouthful；Reactor is round；Set influent weir and regulating gate to distribute sewage to anaerobic zone 1, the first order on inlet channel 9 respectively to lack
Oxygen area 2, second level anoxic zone 4 and third level anoxic zone 6；Anaerobic zone 1 includes anaerobic zone A1a and anaerobic zone B1b, anaerobic zone A1a
Separated with anaerobic zone B1b by water conservancy diversion partition wall 12, water conservancy diversion partition wall 12 is provided at both ends with deflector hole 25＆26, and current are then by leading
Discharge orifice 25＆26 is connected, and inside sets submersible agitator 47 to stir and promotes；Anaerobic zone 1 and first order anoxic zone 2 are divided by partition wall 13
Every one end of partition wall 13 is equipped with water hole 27, and 1 sewage of anaerobic zone is connected by water hole 27 with first order anoxic zone 2；The first order
Anoxic zone 2 includes first order anoxic zone A2a and first order anoxic zone B2b, first order anoxic zone A2a and first order anoxic zone B2b
Separated by water conservancy diversion partition wall 14, water conservancy diversion partition wall 14 is provided at both ends with deflector hole 28＆29, and current are then connected by deflector hole 28＆29
Logical, inside sets submersible agitator 47 to stir promotion and micro-pore aeration equipment；First order anoxic zone 2 and first order aerobic zone 3 are logical
Cross partition wall 15 to separate, one end of partition wall 15 is equipped with water hole 30, and 2 sewage of first order anoxic zone is good with the first order by water hole 30
Oxygen area 3 connects；First order aerobic zone 3 include first order aerobic zone A3a and first order aerobic zone B3b, first order aerobic zone A3a and
First order aerobic zone B3b is separated by water conservancy diversion partition wall 16, and water conservancy diversion partition wall 16 is provided at both ends with deflector hole 31＆32, and current then lead to
Deflector hole 31＆32 connections are crossed, while can be circulated around water conservancy diversion partition wall 16；Floating stuffing area is equipped with first order aerobic zone 3
With micro-pore aeration equipment, floating stuffing area includes floating stuffing 45 and floating stuffing device for trapping, and floating stuffing 45, which leads to suspension, to be filled out
Material device for trapping 46 is fixed on specified region；First order aerobic zone 3 and second level anoxic zone 4 are separated by partition wall 17, partition wall 17
One end be equipped with water hole 33,3 sewage of first order aerobic zone is connected by water hole 33 with second level anoxic zone 4；The second level lacks
Oxygen area 4 includes second level anoxic zone A4a and second level anoxic zone B4b, second level anoxic zone A4a and second level anoxic zone B4b leads to
Water conservancy diversion partition wall 18 to be crossed to separate, water conservancy diversion partition wall 18 is provided at both ends with deflector hole 34＆35, and current are then connected by deflector hole 34＆35,
Inside sets submersible agitator 47 to stir and promotes and micro-pore aeration equipment；Second level anoxic zone 4 and second level aerobic zone 5 by every
Wall 19 separates, and one end of partition wall 19 is equipped with water hole 36, and 4 sewage of second level anoxic zone passes through water hole 36 and second level aerobic zone
5 connections；Second level aerobic zone 5 includes second level aerobic zone A5a and second level aerobic zone B5b, second level aerobic zone A5a and second
Level aerobic zone B5b is separated by water conservancy diversion partition wall 20, and water conservancy diversion partition wall 20 is provided at both ends with deflector hole 37＆38, and current are then by leading
Discharge orifice 37＆38 is connected, while is circulated around water conservancy diversion partition wall 20；Floating stuffing area and micropore are equipped with second level aerobic zone 5
Aerator, floating stuffing area include floating stuffing 45 and floating stuffing device for trapping, and floating stuffing 45 is cut by floating stuffing
Device 46 is stayed to be fixed on specified region；Second level aerobic zone 5 and third level anoxic zone 6 are separated by partition wall 21, and the one of partition wall 21
End is equipped with water hole 39, and 5 sewage of second level aerobic zone is connected by water hole 39 with third level anoxic zone 6；Third level anoxic zone 6
Including third level anoxic zone A6a and third level anoxic zone B6b, third level anoxic zone A6a and third level anoxic zone B6b pass through water conservancy diversion
Partition wall 22 separates, and water conservancy diversion partition wall 22 is provided at both ends with deflector hole 40＆41, and current are then connected by deflector hole 40＆41, and inside is set
The stirring of submersible agitator 47 is put to promote and micro-pore aeration equipment；Third level anoxic zone 6 and third level aerobic zone 7 are divided by partition wall 23
Every one end of partition wall 23 is equipped with water hole 42, and 6 sewage of third level anoxic zone is connected by water hole 42 with third level aerobic zone 7；
Third level aerobic zone 7 includes third level aerobic zone A7a and third level aerobic zone B7b, third level aerobic zone A7a and the third level are aerobic
Area B7b is separated by water conservancy diversion partition wall 24, and water conservancy diversion partition wall 24 is provided at both ends with deflector hole 43＆44, and current then pass through deflector hole 43＆
44 connections, while circulated around water conservancy diversion partition wall 24；Floating stuffing area is equipped with third level aerobic zone 7 and micro-pore aeration is set
Standby, floating stuffing area includes floating stuffing 45 and floating stuffing device for trapping, and floating stuffing 45 passes through floating stuffing device for trapping
46 are fixed on specified region；Third level aerobic zone 7 and anaerobic zone 1 are separated by partition wall 25；It is heavy that 7 water outlet of third level aerobic zone passes through
Shallow lake area sewage inlet 49 imports settling zone 8, and settling zone 8 is separated by partition wall 48 and other subregions；8 thickened sludge of settling zone leads to
Cross returned sludge channel 10 and be back to anaerobic zone 1, returned sludge channel 10 sets regulating gate.
Using circulation flow ring-shaped multistage Activated sludge-biofilm composite type bioreactor (CCMAO-IFAS) (square) place of such as Fig. 2
Manage 20000m3/ d town sewages, treatment process comprise the following steps：
(1) sewage enters reactor by two parts, and Part I enters anaerobism by the sewage inlet 9a of anaerobic zone
Area 1, Part II pass through first order anoxic zone sewage inlet 9b, second level anoxic zone sewage inlet 9c and the 3rd in proportion
Level anoxic zone sewage inlet 9d respectively enters first order anoxic zone 2, second level anoxic zone 4 and third level anoxic zone 6；Into
Level-one anoxic zone, the water flow ratio into second level anoxic zone, into third level anoxic zone are 3：3：4.
(2) sewage from anaerobic zone sewage inlet and the returned sludge mixing from settling zone, initially enter anaerobism
Area A1a, flows under the stirring impetus of the submersible agitator set in the A1a of anaerobic zone, subsequently into the B of anaerobic zone,
Flowed under the stirring impetus of the submersible agitator set in the B of anaerobic zone；Then a part is recycled in the A of anaerobic zone, one
To divide and enter first order anoxic zone, polyP bacteria releases phosphorus under anaerobic environment in anaerobic zone, while converts degradable organic pollution,
And part itrogenous organic substance is subjected to ammonification；
(3) anoxic zone and aerobic zone are included subsequently into the supporting area of three-level Anoxic/Aerobic, the supporting area of every grade of Anoxic/Aerobic, respectively
Level anoxic zone includes anoxic zone A and anoxic zone B；Under the stirring impetus for the submersible agitator that sewage is set in the A of anoxic zone
Flowing, subsequently into anoxic zone B, flows, then one under the stirring impetus of the submersible agitator set in the B of anoxic zone
Divide and be recycled in the A of anoxic zone, be partly into aerobic zone；Aerobic zones at different levels include aerobic zone A and aerobic zone B；Aerobic zone A is aerobic
Area B is equipped with floating stuffing area；Sewage initially enters aerobic zone A, and subsequently into aerobic zone B, a part is recycled in the A of aerobic zone,
Anoxic zone or settling zone are partly into, denitrification denitrogenation, work of the partial organic substances in denitrifying bacterium are carried out in anoxic zones at different levels
Removed with lower degraded；Floating stuffing area is equipped with aerobic zones at different levels, carries out further degraded and the ammonia of organic nitrogen of organic matter
Change the absorption of nitrification and phosphorus；
(4) water outlet of afterbody aerobic zone drains into settling zone, is discharged by mud-water separation purified water, thickened sludge one
Divide and be back to anaerobic zone, another part drains into sludge concentration and dewatering system.
45 packing ratio of floating stuffing is 30%；14 floating stuffing materials are polyethylene, particle diameter 25mm, bulk specific weight 0.96 ±
2g/cm3, specific surface area>500m2/m3；Floating stuffing device for trapping 46 is made of the porous retention net of stainless steel, and retention net circular hole is straight
Footpath 8mm, center of circular hole is away from for 10mm, each installation thick bubble diffuser of one row of retention net both sides base portion.Anaerobic zone submersible agitator
For stirred type；Anoxic zone and aerobic zone submersible agitator are push flowing.Anoxic zone and aerobic zone aerating system are by plate-type aerator
Composition, diameter D250, single maximal ventilatory volume is 4m3/h；Aerator includes stent, material ABS, subsidiary bilateral buckle.
Reaction zone return sludge ratio 100% (actual motion 50~100%)；Reaction zone mean sludge concentration 8100mg/L
(actual 7000~10000mg/L)；Anaerobic zone stirring intensity 4W/m3, configure 4 mixers, separate unit power 1.1kW；Anoxic zone
Stirring intensity 2.5W/m3, configure 12 mixers, separate unit power 0.75kW；Aerobic zone 8~10m of aeration intensity3/(m2H), cloth
Microporous aeration disc 1250 is put, 10~20% aerobic zone, 1 aerator is reserved in anoxic zone 2, and 10~20% aerobic zones are reserved in anoxic zone 3
2 aerators (are reduced into conventional A2Press aerobic operation in this area of O state of the art).
Anaerobic zone hydraulic detention time is 1h；Anoxic zone hydraulic detention time is 2.8h；Aerobic zone hydraulic detention time is
4.5h.The denitrification load values scope of anoxic zone is 0.035kgNO3- N/ (kgMLSSd) (actual motion 0.03~
0.05kgNO3-N/(kgMLSS·d)；Sludge loading value is 0.111kg BOD5/ (kgMLSSd) (actual motion 0.05~
0.15kg BOD5/(kgMLSS·d))；Settling zone surface loading area value is 1.2m3/(m2·h)。
Structure of reactor size：Totally 2 groups, every group(available depth 6m).
Implementation result：
Design influent quality：
CODCr：400mg/L；BOD5：180mg/L；TN：45mg/L；NH3-N：30mg/L；SS：220mg/L；TP：5mg/L；
Main effluent quality can reach after sewage treatment process of the present invention processing《Urban wastewater treatment firm pollutant is arranged
Put standard》(GB18918-2002) level-one A is below the mark.
Operation energy consumption：0.2~0.22kW.h/m3。
Above-described is only presently preferred embodiments of the present invention, is not intended to limit the invention, all the present invention's
All any modification, equivalent and improvement made within spirit and principle etc., should all be included in the protection scope of the present invention.
Claims (8)
- A kind of 1. circulation flow ring-shaped multistage Activated sludge-biofilm composite type bioreactor, it is characterised in that selected from following reactor it It is any：Reactor one：Including the anaerobic zone, the supporting area of two-stage above Anoxic/Aerobic, settling zone set up successively, the Anoxic/Aerobic Supporting area includes the anoxic zone and aerobic zone set up successively, being equipped with partition wall between adjacent twoth area, one end of the partition wall was equipped with Water hole, floating stuffing area is equipped with the aerobic zone, the anaerobic zone is provided with sewage inlet and sludge inlet, described to lack Oxygen area is provided with sewage inlet, and the settling zone is provided with sewage outfall and sludge outlet, and the sludge outlet leads to Cross the sludge inlet that returned sludge channel connects the anaerobic zone；Reactor two：Including the anaerobic zone and the supporting area of two-stage above Anoxic/Aerobic set up successively, the supporting area of Anoxic/Aerobic Including the anoxic zone and aerobic zone set up successively, partition wall is equipped between adjacent twoth area, one end of the partition wall is equipped with water hole, institute State and floating stuffing area is equipped with aerobic zone, the inner space that the anaerobic zone is closed connection with afterbody aerobic zone and formed is Settling zone, the settling zone are provided with water hole with afterbody aerobic zone contact surface, and the anaerobic zone is provided with sewage Inlet and sludge inlet, the anoxic zone are provided with sewage inlet, and the settling zone is provided with sewage outfall and dirt Mud outlet, the sludge outlet connect the sludge inlet of the anaerobic zone by returned sludge channel；The anaerobic zone is provided with water conservancy diversion partition wall, and anaerobic zone is divided into anaerobic zone A and anaerobic zone B by the water conservancy diversion partition wall； The water conservancy diversion partition wall is provided at both ends with two deflector holes；The anoxic zone is provided with water conservancy diversion partition wall, and the anoxic zone is divided into anoxic zone A and anoxic by the water conservancy diversion partition wall Area B；The water conservancy diversion partition wall is provided at both ends with two deflector holes；The aerobic zone is provided with water conservancy diversion partition wall, and aerobic zone is divided into aerobic zone A and aerobic zone B by the water conservancy diversion partition wall； The water conservancy diversion partition wall is provided at both ends with two deflector holes；The packing ratio in the floating stuffing area is 30~60%；Floating stuffing is polyethylene, polypropylene or polyurethane, and particle diameter is 15mm~100mm, bulk specific weight are 0.96 ± 2g/cm3, specific surface area>500m2/m3；Floating stuffing device for trapping is by stainless steel Porous retention net composition, retains net Circularhole diameter 8mm~20mm, and center of circular hole is away from for 10mm~50mm, retention net both sides base portion Each installation thick bubble diffuser of one row；A thickened sludge part for sludge outlet is back to the return sludge ratio 50~100% of anaerobic zone；Reaction zone is averaged 8000~14000mg/L of sludge concentration；The aerobic zone is equipped with aerating system, and aerobic zone aeration intensity is 8~10m3/(m2H), wherein close under aerobic zone Reserve 10~20% aerobic zone aerators in level-one anoxic zone；The denitrification load values scope of the anoxic zone is 0.03~0.06kgNO3-N/(kgMLSS·d)；Sludge loading value For 0.05~0.15kg BOD5/(kgMLSS·d)。
- 2. circulation flow ring-shaped multistage Activated sludge-biofilm composite type bioreactor as claimed in claim 1, it is characterised in that described In reactor two, the anaerobic zone connects with the closing of afterbody aerobic zone and forms annulus, and the inner space of the annulus is Settling zone.
- 3. circulation flow ring-shaped multistage Activated sludge-biofilm composite type bioreactor as claimed in claim 1, it is characterised in that described Floating stuffing area includes floating stuffing and floating stuffing device for trapping.
- 4. circulation flow ring-shaped multistage Activated sludge-biofilm composite type bioreactor as claimed in claim 1, it is characterised in that described Anaerobic zone and the anoxic zone are provided with submersible agitator.
- 5. circulation flow ring-shaped multistage Activated sludge-biofilm composite type bioreactor as claimed in claim 1, it is characterised in that described Anoxic zone and the aerobic zone are provided with aerating system.
- 6. a kind of circulation flow ring-shaped multistage Activated sludge-biofilm composite type bioreactor sewage treatment process, it is characterised in that be logical Cross any circulation flow ring-shaped membrane bioreactor of claim 1 to 5 and carry out sewage disposal；The sewage treatment process bag Include following steps：(A) sewage enters the reactor by two parts, and Part I enters anaerobic zone by the sewage inlet of anaerobic zone, Part II respectively enters anoxic zones at different levels by the sewage inlet of anoxic zones at different levels；(B) sewage of the sewage inlet from anaerobic zone and the returned sludge from settling zone mix, polyP bacteria in anaerobic zone Phosphorus is released under anaerobic environment, while converts degradable organic pollution, and part itrogenous organic substance is subjected to ammonification；(C) subsequently into the supporting area of two-stage above Anoxic/Aerobic, denitrification denitrogenation is carried out in anoxic zones at different levels, partial organic substances exist Degrade and remove under the action of denitrifying bacterium；Floating stuffing area is equipped with aerobic zones at different levels, carry out the further degraded of organic matter with And the ammonification nitrification of organic nitrogen and the absorption of phosphorus；(D) water outlet of afterbody aerobic zone drains into settling zone, is discharged by mud-water separation purified water, and a thickened sludge part is returned Anaerobic zone is flow to, another part drains into sludge concentration and dewatering system；The anaerobic zone includes anaerobic zone A and anaerobic zone B；Sewage initially enters anaerobic zone A, the diving set in the A of anaerobic zone Flowed under the stirring impetus of blender, subsequently into stirring for the submersible agitator in the B of anaerobic zone, set in the B of anaerobic zone Mix and flowed under impetus；Then a part is recycled in the A of anaerobic zone, is partly into first order anoxic zone；Anoxic zones at different levels include anoxic zone A and anoxic zone B；The stirring for the submersible agitator that sewage is set in the A of anoxic zone promotes The lower flowing of effect, subsequently into anoxic zone B, flows, so under the stirring impetus of the submersible agitator set in the B of anoxic zone Rear portion is recycled in the A of anoxic zone, is partly into aerobic zone；Aerobic zones at different levels include aerobic zone A and aerobic zone B；Aerobic zone A and aerobic zone B is equipped with floating stuffing area；Sewage first into Enter aerobic zone A, subsequently into aerobic zone B, a part is recycled in the A of aerobic zone, is partly into anoxic zone or settling zone；The packing ratio in the floating stuffing area is 30~60%；Floating stuffing is polyethylene, polypropylene or polyurethane, and particle diameter is 15mm~100mm, bulk specific weight are 0.96 ± 2g/cm3, specific surface area>500m2/m3；Floating stuffing device for trapping is by stainless steel Porous retention net composition, retains net Circularhole diameter 8mm~20mm, and center of circular hole is away from for 10mm~50mm, retention net both sides base portion Each installation thick bubble diffuser of one row；A thickened sludge part is back to the return sludge ratio 50~100% of anaerobic zone；The mean sludge concentration 8000 of reaction zone ~14000mg/L；The aerobic zone is equipped with aerating system, and aerobic zone aeration intensity is 8~10m3/(m2H), wherein close under aerobic zone Reserve 10~20% aerobic zone aerators in level-one anoxic zone；The denitrification load values scope of the anoxic zone is 0.03~0.06kgNO3-N/(kgMLSS·d)；Sludge loading value For 0.05~0.15kg BOD5/(kgMLSS·d)。
- 7. circulation flow ring-shaped multistage Activated sludge-biofilm composite type bioreactor sewage treatment process as claimed in claim 6, its It is characterized in that, the stirring intensity of anaerobic zone is 4~5W/m3, the stirring intensity of anoxic zone is 1~3W/m3。
- 8. circulation flow ring-shaped multistage Activated sludge-biofilm composite type bioreactor sewage treatment process as claimed in claim 6, its It is characterized in that, the hydraulic detention time of the anaerobic zone is 1~2h；The hydraulic detention time of the anoxic zone is 0.5~3h；Institute The hydraulic detention time for stating aerobic zone is 3.5~5h.
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Families Citing this family (14)
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| CN115259379A (en) * | 2022-08-29 | 2022-11-01 | 中国电建集团华东勘测设计研究院有限公司 | Device and method for realizing double short-range coupling anaerobic ammonia oxidation in multistage A/O continuous flow reactor with sectional water inflow |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU5211598A (en) * | 1997-02-07 | 1998-08-13 | Keith Thatcher | Bio tank |
| CN204508917U (en) * | 2015-01-07 | 2015-07-29 | 山东建筑大学 | A kind of aerobic, anaerobism combined type aeration type wastewater treatment equipment |
| CN205258127U (en) * | 2015-10-22 | 2016-05-25 | 上海中信水务产业有限公司 | Circulatory flow loop type multistage sludge -biofilm intergrowth combined type bioreactor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2494354Y (en) * | 2001-07-24 | 2002-06-05 | 北京美华博大环境工程有限公司 | Device for treatment by cyclical active sludge process |
| CN101269882B (en) * | 2008-04-10 | 2011-03-30 | 贵州省建筑设计研究院 | Integrated oxidation ditch, construction and operation method |
| CN201801445U (en) * | 2010-06-20 | 2011-04-20 | 曲忠良 | Integrated wastewater treatment device for circular reaction in aerobic fluidized bed |
| CN201942599U (en) * | 2011-03-07 | 2011-08-24 | 广东省环境保护工程研究设计院 | Integrated sewage treatment device adopting A/A/O micro-aerating oxidation ditch process |
-
2015
- 2015-10-22 CN CN201510690300.1A patent/CN105254008B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU5211598A (en) * | 1997-02-07 | 1998-08-13 | Keith Thatcher | Bio tank |
| CN204508917U (en) * | 2015-01-07 | 2015-07-29 | 山东建筑大学 | A kind of aerobic, anaerobism combined type aeration type wastewater treatment equipment |
| CN205258127U (en) * | 2015-10-22 | 2016-05-25 | 上海中信水务产业有限公司 | Circulatory flow loop type multistage sludge -biofilm intergrowth combined type bioreactor |
| CN205710082U (en) * | 2015-10-22 | 2016-11-23 | 上海中信水务产业有限公司 | A kind of circulation flow ring-shaped multistage Activated sludge-biofilm composite type bioreactor |
Non-Patent Citations (1)
| Title |
|---|
| 改良A2/O分段进水工艺用于污水厂升级改造;朱云鹏等;《中国给水排水》;20120401;第28卷(第7期);第22页摘要，第23-26页第1-3节、图1 * |
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