CN202688094U - Sequencing batch type A2O (anaerobic anoxic oxic) sewage treatment device - Google Patents
Sequencing batch type A2O (anaerobic anoxic oxic) sewage treatment device Download PDFInfo
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- CN202688094U CN202688094U CN 201220205263 CN201220205263U CN202688094U CN 202688094 U CN202688094 U CN 202688094U CN 201220205263 CN201220205263 CN 201220205263 CN 201220205263 U CN201220205263 U CN 201220205263U CN 202688094 U CN202688094 U CN 202688094U
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Abstract
The utility model belongs to the technical field of sewage treatment, and discloses a sequencing batch type A2O (anaerobic anoxic oxic) sewage treatment device. The sequencing batch type A2O sewage treatment device comprises an anaerobic tank, an anoxic tank and at least two SBR (sequencing batch reactor) tanks, wherein each of the SBR tanks comprises an aerating device, a sludge discharging pump, a sludge discharging pipe and a decanting device; sludge discharging valves are arranged at outer ends of the sludge discharging pipes; one end of each sludge return pipe is connected to each sludge discharging pipe through return valves, and the other end of the sludge return pipe is connected to the anaerobic tank; mixed liquid return pumps are arranged in the SBR tanks; mixed liquid return pipes are communicated with the anoxic tank and the SBR tanks through the mixed liquid return pumps; a water inlet hole of each SBR tank is communicated with a water outlet hole of the anoxic tank; the sludge discharging pumps are connected in parallel to the sludge discharging pipes; and the mixed liquid return pumps are connected in parallel to the mixed liquid return pipes. By the sewage treatment technique, a continuous flow A2O denitrification and dephosphorization technique is combined with an SBR technique, and the sequencing batch type A2O sewage treatment device has the characteristics of small occupation space, good denitrification and dephosphorization effects, high utilization rate of equipment and the like.
Description
Technical field
The utility model belongs to technical field of sewage.
Background technology
A
2O(Anaerobic Anoxic Oxic) sewage treatment process is comprised of anaerobic pond-anoxic pond-four processing units of Aerobic Pond-settling tank, sewage is the order each processing unit of flowing through respectively successively, nitrifier, denitrifying bacteria and polyP bacteria that its separate processing unit is respectively in the biological sewage treatment provide preferably living environment, thereby can obtain preferably while Nitrogen/Phosphorus Removal, and in existing construction of wastewater treatment plant, be used widely.But, because the competition aspect carbon source demand between the contradiction of sludge age and anoxic denitrification and the anaerobic phosphorus release between nitrifier and the polyP bacteria, so that this technique is difficult to obtain Nitrogen/Phosphorus Removal good the time; On the other hand, along with the quickening of socioeconomic development, urbanization process, the growing tension of land resources forces existing sewage work to shorten treatment scheme as far as possible, save land used, reduces to greatest extent construction of wastewater treatment plant to the impact in peripheral plot.
SBR technique (Sequencing Batch Reactor) full name is sequence batch (batch activated sludge method (claiming again sequencing batch reactor), the biology that its maximum feature is sewage is released phosphorus, inhale phosphorus, the biochemical reactions such as nitrated and denitrification are all finished in the body of same pond, it is the sewage treatment process that moves and finish all operations were and operational process by the periodical operation of certain hour order in the body of single pond, and an one complete operating process (also claiming the cycle of operation) comprises that double teacher moves composition in order successively: the water inlet phase, reaction period, the precipitation phase, the draining spoil disposal phase, lay-up period.This technique has following advantage: technique simply, is not established second pond, be need not sludge reflux; Reduced investment, take up an area less, working cost is low; Processing efficiency is high, anti impulsion load; Flexible operation, has the denitrogenation dephosphorizing function.But, SBR technique also has the shortcoming that himself is difficult to overcome, on the one hand, because denitrogenation dephosphorizing carries out in the body of same pond, the mud contradiction in age of nitrifier and polyP bacteria and the competition of the carbon source of anoxic denitrification and anaerobic phosphorus release are so that the stability of the Nitrogen/Phosphorus Removal of this technique and system's operation is affected.
MSBR technique (Modified Sequencing Batch Reactor) is that the eighties in 20th century is on the basis of classical SBR technique, in conjunction with the higher technique of a kind of intensive degree of conventional activated sludge process research and development.This technique is comprised of anaerobic pond, anoxic pond I, Aerobic Pond, anoxic pond II, mud-water separation pond and SBR pond etc., wherein the SBR pond successively order experience stirring, aeration, leave standstill, precipitate four running statuses.Sewage at first enters anaerobic pond, with mix from mud-water separation pond and the mixed solution behind anoxic pond II denitrification, make polyP bacteria fully release phosphorus at this, then enter anoxic pond I and proceed denitrification, the mixed solution behind the denitrification enters Aerobic Pond, finishes organic matter removal, nitrated and inhale the biological process such as phosphorus, then mixed solution enters anoxic pond II and mud-water separation pond successively, at last, mixed solution enters the SBR pond, carries out last processing and mud-water separation at this.Further finish organic matter removal, nitrated, denitrification and inhale the phosphorus process at this.In operational process, this technique is except the SBR pond, and all the other each pond bodies all are in the state of permanent water level, continuous operation.Therefore, compare with SBR technique, MSBR is except the advantage that has passed on classical SBR technique, and it has higher capacity utilization; Has higher dephosphorization denitrogenation usefulness.But, raising along with people's living standard, carbon source is day by day deficient in the sewage, has brought a new difficult problem for the raising of MSBR technique denitrogenation dephosphorizing usefulness, in addition, for satisfying the biochemical function demand of each reaction member, all need be equipped with corresponding equipment in each pond body, therefore, the corresponding increase of cost, the shortcoming such as high, the complex structure of lness ratio of plant has simultaneously restricted the large-scale application of this technique.
Above-described A
2The problem that O and SBR, MSBR technique exist all awaits further perfect.
Summary of the invention
Main purpose of the present utility model is to A
2O technique improves, and in conjunction with the handiness of SBR process operation and the characteristics of saving land used, provides a cover to take up an area waste disposal plant little, high-efficient denitrification and dephosphorization.
The technical solution of the utility model is:
Sequence batch (A
2The O waste disposal plant comprises successively order mutually contact logical anaerobic pond, anoxic pond and SBR pond;
Described anaerobic pond is provided with prosopyle, posticum, whipping appts;
Described anoxic pond is provided with the first prosopyle, the second prosopyle, posticum, plug flow device, and the second prosopyle is connected with the posticum of anaerobic pond;
Described SBR pond is provided with prosopyle, aerating apparatus, blowdown dredge pump, sludge-discharge pipe, strains the water device, and described prosopyle is connected with the posticum of anoxic pond, and sludge-discharge pipe connects the blowdown dredge pump;
The sludge-discharge pipe outer end is provided with the blowdown slurry valve, and an end of mud return line is connected in sludge-discharge pipe by reverse flow valve, and the other end of mud return line is connected to anaerobic pond;
Be provided with the mixed-liquor return pump in the SBR pond, the mixed-liquor return pipe will be communicated with the SBR pond with anoxic pond by the mixed-liquor return pump; The SBR pond has at least 2, and the prosopyle in every SBR pond is connected with the posticum of anoxic pond, and the blowdown dredge pump in each pond is connected in parallel in sludge-discharge pipe, and the mixed-liquor return parallel connection of pumps in each pond is connected in the mixed-liquor return pipe.
During use, sewage enters respectively in anaerobic pond and the anoxic pond continuously after pretreatment; Mixed solution after the anaerobic pond anaerobic biological is processed enters anoxic pond; Mixed solution after the biochemical treatment of anoxic pond anoxic enters the SBR pond;
The mixed solution in SBR pond is back to anoxic pond by mixed-liquor return pump and mixed-liquor return pipe; The mud in SBR pond discharges by blowdown dredge pump and sludge-discharge pipe; The mud in SBR pond is back to anoxic pond by blowdown dredge pump, sludge-discharge pipe and mud return line; SBR pond operation operation and time are assigned as: (water inlet+aeration) 60 ~ 120min, (leaving standstill+strain water) 60 ~ 120min; Different SBR pond by water inlet+aeration, leave standstill+strain water, precipitation+water outlet wrong order open shop, the time of staggering is realized continuous the water inlet and continuous effluent on decide SBR pond operation cycling time and SBR pond number.
The utility model is with traditional A
2Aerobic section in the O technique replaces with the SBR pond of sequence operation, sewage after pretreatment divides enter respectively anaerobism and anoxic pond at 2, its main purpose is that the denitrifying bacteria of releasing in phosphorus bacterium, the anoxic pond that is respectively in the anaerobic pond provides required carbon source, improves the effective rate of utilization of intrinsic carbon source in the sewage; After sewage is released the effect of phosphorus bacterium, anoxic pond denitrifying bacteria through anaerobic pond in order, enter in the SBR pond, in the SBR pond, experience aeration, leave standstill, precipitation, several stages of water outlet, its objective is after anaerobism, anoxic pond are processed, sewage enters the nitrification of experience nitrifier in the SBR pond, ammonia nitrogen in the sewage is removed, realized simultaneously aerobic suction phosphorus; Leaving standstill the stage of SBR pond, mixed-liquor return to anoxic pond is carried out denitrification denitrogenation, its quantity of reflux is 1 ~ 3 times of sewage water inlet total amount, simultaneously sludge reflux to anaerobic pond is made polyP bacteria experience anaerobism put the phosphorus habitat, and its quantity of reflux is 0.5 ~ 1.5 times of sewage water inlet total amount.
The utlity model has following substantive distinguishing features and progress: sewage treatment process of the present utility model passes through Continuous Flow A
2The O denitrification dephosphorization technique combines with SBR technique, has saved on the one hand traditional A
2The construction of second pond in the O technique has reduced the floor space of technique; Create on the other hand good denitrification phosphorous removal biochemical environment, improved Nitrogen/Phosphorus Removal and the equipment service efficiency of SBR technique, had higher capacity utilization.
Description of drawings
Fig. 1 is process flow diagram of the present utility model.
Fig. 2 is SBR pond operation operation.
Fig. 3 is a specific embodiment equipment configuration schematic diagram of the present utility model.
Fig. 4 is sequence operation scheme schematic diagram in SBR pond in the specific embodiment of the utility model.
Embodiment
As shown in Figure 3, the sequence batch (A that provides of the utility model
2The O waste disposal plant comprises anaerobic pond 1, anoxic pond 2 and SBR pond that order successively connects, and the SBR pond is provided with three: SBR the first pond 3, SBR the second pond 4 and SBR the 3rd pond 5, these three SBR ponds are by sequence operation operation.
Anaerobic pond 1 is provided with prosopyle 11, posticum 12, agitator 1a;
There is respectively prosopyle 33 in every SBR pond, and described prosopyle 33 is connected with the posticum 23 of anoxic pond 2, is respectively arranged with mixed-liquor return pump 3a, blowdown dredge pump 3b, sludge-discharge pipe 24 in the pond, the aerating apparatus (not shown), strains water device 3d.
Mixed-liquor return pipe 24 is communicated with anoxic pond 2 by mixed-liquor return pump 3a with the SBR pond; Mixed-liquor return pump 3a in every SBR pond is connected in parallel in mixed-liquor return pipe 24;
The outer terminal part of sludge-discharge pipe 61 is provided with blowdown slurry valve 63; One end of mud return line 13 is connected on the sludge-discharge pipe 61 by reverse flow valve 62, and the other end of mud return line 13 is linked into anaerobic pond 1; Blowdown dredge pump 3b in every SBR pond is connected in parallel in sludge-discharge pipe 24.
During operation, sewage 11 enters anaerobic pond 1 continuously through the prosopyle after pretreatment, and the mixed solution after anaerobic pond 1 anaerobic biological is processed enters anoxic pond 2 from posticum 12 through the second prosopyle 22; The hydraulic detention time of anaerobic pond 1 is 0.5 ~ 1.0 hour;
Be furnished with the hydraulic pressure inlet gate on the prosopyle 33 in each SBR pond, when the water level in SBR pond reached design water level, the hydraulic pressure inlet gate on the prosopyle 33 was closed, and enters the SBR cycle of operation; Is furnished with simultaneously perforation tracery wall 31 in each SBR pond, to guarantee even water distribution in the SBR pond.
SBR pond operation operation and time are assigned as: (water inlet+aeration) 90min, (leaving standstill+strain water) 90min; Each SBR pond is from water inlet, and aerating apparatus is opened, and it moved operation sequence as shown in Figure 2;
After the aeration 0.5 hour, mixed-liquor return pump 3a opens, and the mixed solution in the SBR pond is back in the anoxic pond 2 through mixed-liquor return pipe 24 with 1 ~ 3 times of sewage water inlet total amount;
Behind the aeration 1.5 hours, mixed-liquor return pump 3a closes, and the SBR pond enters the stage of staticly settling;
After the SBR pond is left standstill 0.5 hour, blowdown slurry valve 63 is closed, reverse flow valve 62 is opened, blowdown dredge pump 3b opens, and the mud in the SBR pond is back in the anaerobic pond 1 through sludge-discharge pipe 61 and return line 13, and the sludge reflux amount is 0.5 ~ 1.5 times of sewage water inlet total amount; Start simultaneously and strain water device 3d, the water after processing is flowed in the rising pipe 71 through rising pipe 32 discharge;
After the SBR pond is left standstill 1.0 hours, close the valve 62 on the mud return line 13, open the blowdown slurry valve 63 on the sludge-discharge pipe 61, the discharging excess sludge, after 0.5 hour, blowdown dredge pump 3b and strain water device 3d and close, the SBR pond enters the next cycle of operation.
In the present embodiment, three SBR ponds are by sequence interleaved operation (as shown in Figure 4), and the time of staggering is 60 min, can realize continuously water inlet and water outlet.
The handled former water of the present embodiment is the Guangzhou municipal effluent, 1 hour anaerobic pond residence time, 4 hours anoxic pond residence time, three in SBR pond, 3 hours SBR pond cycles of operation, the mixed-liquor return amount is 2 times of sewage water inlet total amounts, and the sludge reflux amount is 0.5 times of sewage water inlet total amount.Process forward and backward water quality data see the following form (mg/L):
| ? | COD | BOD | SS | TN | TP | NH 3-N |
| Water inlet (before processing) | 200~400 | 150~250 | 150~250 | 30~45 | 4~7 | 25~40 |
| Water outlet (after processing) | 50 | 20 | 10 | 7.5 | 0.4 | 1.5 |
Claims (1)
1. sequence batch (A
2The O waste disposal plant comprises successively order mutually contact logical anaerobic pond, anoxic pond and SBR pond;
Described anaerobic pond is provided with prosopyle, posticum, whipping appts;
Described anoxic pond is provided with the first prosopyle, the second prosopyle, posticum, plug flow device, and the second prosopyle is connected with the posticum of anaerobic pond;
Described SBR pond is provided with prosopyle, aerating apparatus, blowdown dredge pump, sludge-discharge pipe, strains the water device, and described prosopyle is connected with the posticum of anoxic pond, and sludge-discharge pipe connects the blowdown dredge pump;
It is characterized in that: the sludge-discharge pipe outer end is provided with the blowdown slurry valve, and an end of mud return line is connected in sludge-discharge pipe by reverse flow valve, and the other end of mud return line is connected to anaerobic pond; Be provided with the mixed-liquor return pump in the SBR pond, the mixed-liquor return pipe is communicated with anoxic pond by the mixed-liquor return pump with the SBR pond;
The SBR pond has at least 2, and the prosopyle in every SBR pond is connected with the posticum of anoxic pond, and the blowdown dredge pump in each pond is connected in parallel in sludge-discharge pipe, and the mixed-liquor return parallel connection of pumps in each pond is connected in the mixed-liquor return pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220205263 CN202688094U (en) | 2012-05-09 | 2012-05-09 | Sequencing batch type A2O (anaerobic anoxic oxic) sewage treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220205263 CN202688094U (en) | 2012-05-09 | 2012-05-09 | Sequencing batch type A2O (anaerobic anoxic oxic) sewage treatment device |
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| CN202688094U true CN202688094U (en) | 2013-01-23 |
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| CN 201220205263 Expired - Fee Related CN202688094U (en) | 2012-05-09 | 2012-05-09 | Sequencing batch type A2O (anaerobic anoxic oxic) sewage treatment device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104724825A (en) * | 2015-03-17 | 2015-06-24 | 东莞市智汇水务科技有限公司 | Sewage treatment method |
| CN113104955A (en) * | 2021-04-21 | 2021-07-13 | 中亿丰建设集团股份有限公司 | Up-flow anaerobic digestion-SBR sewage treatment device |
| CN113431145A (en) * | 2021-07-13 | 2021-09-24 | 沈阳城市学院 | Pipeline anti-freezing system for toilet |
-
2012
- 2012-05-09 CN CN 201220205263 patent/CN202688094U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104724825A (en) * | 2015-03-17 | 2015-06-24 | 东莞市智汇水务科技有限公司 | Sewage treatment method |
| CN113104955A (en) * | 2021-04-21 | 2021-07-13 | 中亿丰建设集团股份有限公司 | Up-flow anaerobic digestion-SBR sewage treatment device |
| CN113431145A (en) * | 2021-07-13 | 2021-09-24 | 沈阳城市学院 | Pipeline anti-freezing system for toilet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Sui Jun Inventor after: Ma Zhenqiang Inventor after: Li Jie Inventor before: Sui Jun Inventor before: Ma Zhenchao Inventor before: Li Jie |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: SUI JUN MA ZHENCHAO LI JIE TO: SUI JUN MA ZHENQIANG LI JIE |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20200509 |
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| CF01 | Termination of patent right due to non-payment of annual fee |