CN201141000Y - A2/O and UCT technique integrated composite sewage treatment reactor - Google Patents
A2/O and UCT technique integrated composite sewage treatment reactor Download PDFInfo
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- CN201141000Y CN201141000Y CNU200720061871XU CN200720061871U CN201141000Y CN 201141000 Y CN201141000 Y CN 201141000Y CN U200720061871X U CNU200720061871X U CN U200720061871XU CN 200720061871 U CN200720061871 U CN 200720061871U CN 201141000 Y CN201141000 Y CN 201141000Y
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Abstract
The utility model discloses a combined sewage treatment reactor integrating processes of A2/O and UCT. The reactor comprises an anaerobic zone (2), an anoxic zone (5), an aerobic zone (7) and a settling zone (11), a first refluxing sludge pipe (13) and a second refluxing sludge pipe (14) which are provided with valves are respectively connected to the anaerobic zone (2) and the anoxic zone (5) from the settling zone (11), and a first mixed liquid return pipe (16) and a second mixed liquid return pipe (17) which are provided with valves are respectively connected to the anoxic zone (5) and the front end of the anaerobic zone (2) from the tail end of the aerobic zone (7) and the tail end of the anoxic zone (5). The utility model runs two processes of sewage treatment in the integrated reactor alternatively, and realizes functions of denitrogenation and dephosphorization effectively and economically through mounting an anaerobic tank, an anoxic tank and an aerobic tank in the integrated reactor. The high efficient and economic domestic sewage treatment function can be realized by running the two processes alternatively and integrating technical resources under different conditions.
Description
Technical field
The utility model relates to a kind of integrated reactor, specifically is a kind of by two kinds of sewage treatment process: A of alternate run in integrated reactor
2/ O technology and UCT technology, thus the raising integrated reactor of efficient economy is to the A of city domestic sewage denitrogenation dephosphorizing treatment effect
2The integrated combined sewage water treatment reactor of/O and UCT technology.
Background technology
A
2/ O (Anaerobic-Anoxic-Oxic) technology is on the basis of original biological phosphate-eliminating A/O (Anaerobic-Oxic) technology, embeds an anoxic pond.Sewage carries out nitration reaction in Aerobic Pond, mixed-liquor return carries out denitrification denitrogenation to anoxic pond in the Aerobic Pond, settling tank phosphorus containing sludge partial reflux and former water enter anaerobic pond together, carry out anaerobic phosphorus release, again to the aerobic phosphorus of taking the photograph of Aerobic Pond, anaerobic-anoxic-aerobic Sludge System that is in series can realize denitrogenation dephosphorizing simultaneously so at last.A
2/ O technology is the starting point of present many denitrogenation dephosphorizing combined process, because its flow process is simple, easy to operate, can realizes denitrogenation dephosphorizing simultaneously in same system, thereby be widely used.
UCT (University of Cape town) technology is a kind of A of being similar to of Cape Town, RSA university exploitation
2The denitrification dephosphorization technique of/O technology.UCT technology and A
2/ O technology difference is the mud of settling tank is back to anoxic pond, the nitrate that carries in mud denitrification denitrogenation in anoxic pond, when having avoided being back to anaerobic pond to the influence of phosphor-removing effect.In order to remedy the loss of mud in the anaerobic pond, set up the mud backflow of anoxic pond simultaneously to anaerobic pond.The phosphor-removing effect of UCT technology obtains bigger raising, but has added return-flow system owing to whole, has also improved running cost.
The utility model content
The purpose of this utility model is in conjunction with above-mentioned A
2The advantage that two kinds of technologies of/O and UCT exist, but the A of a kind of conserve space and cost of investment is provided
2The integrated combined sewage water treatment reactor of/O and UCT technology by closing down of mud return line net and mixed-liquor return pipe network in the control integrated reactor, realizes alternate run A
2/ O technology and UCT technology.
For reaching above-mentioned utility model purpose, the utility model has been taked following process technology scheme:
A
2The integrated combined sewage water treatment reactor of/O and UCT technology comprises anaerobic zone, oxygen-starved area, aerobic zone and settling region, and water inlet pipe is connected with anaerobic zone; Be provided with diving plug-flow stirrer in anaerobic zone, the oxygen-starved area; Aerobic zone is provided with a plurality of micro-pore aeration dishes; The front end of settling region is provided with commutating zone, and the rear end is provided with exhalant region, and gas blower is connected with aerobic zone; One of reflux sludge tube that is provided with valve is connected to anaerobic zone and oxygen-starved area respectively with two of reflux sludge tube from the settling region, be provided with two of one of the mixed-liquor return pipe of valve and mixed-liquor return pipe is connected to oxygen-starved area and anaerobic zone respectively by the end of the end of aerobic zone and oxygen-starved area front end.
For further realizing the utility model purpose, described reactor also is provided with the excess sludge comb, after the excess sludge comb is located at the pipeline of one of reflux sludge tube, connects with the external world.
Described anaerobic zone, oxygen-starved area and aerobic district are provided with anaerobic zone division plate, oxygen-starved area division plate and the aerobic plate that separates respectively; Anaerobic zone division plate, oxygen-starved area division plate and aerobic zone dividing plate are divided into anaerobic zone, oxygen-starved area and aerobic zone three lattice, four lattice and three lattice respectively.
In three lattice of aerobic zone, be provided with 42 micro-pore aeration dishes.
Two of one of described reflux sludge tube and reflux sludge tube drawn from the settling region by same pipeline, is connected respectively to anaerobic zone and oxygen-starved area again.
On the two shared pipelines of one of described reflux sludge tube and reflux sludge tube, and one of mixed-liquor return pipe is respectively equipped with residual sea water pump with two of mixed-liquor return pipe.
The utility model A
2The integrated combined sewage water treatment reactor of/O and UCT technology is handled real life sewage, and treatment scale is 312m
3/ d, aerobic zone hydraulic detention time are 2-5.8 hour, and the anaerobic zone hydraulic detention time is 1.0-2.5 hour, and the oxygen-starved area hydraulic detention time is 2.0-4.0 hour.
Compared with the prior art, the utlity model has following beneficial effect:
(1) the utility model is owing to be provided with valve in all reflux sludge tubes and the mixed-liquor return pipe, when operation A2/O technology, open one of reflux sludge tube and one of mixed-liquor return pipe, the closing volume sludge pipe two, two and excess sludge pipe of mixed-liquor return pipe; When operation UCT technology, open reflux sludge tube two, one of mixed-liquor return pipe and mixed-liquor return pipe two, one of closing volume sludge pipe and excess sludge pipe.This A
2The integrated combined sewage water treatment reactor of/O and UCT technology can be moved A flexibly
2/ O technology and UCT technology.
(2) compare by moving single adsorption biodegradation with actual sewage treatment plant, the utility model reactor has bigger lifting to the removal effect of pollutent, wherein COD, ammonia nitrogen are all had good effect, water outlet COD is (real life sewage, treatment scale 312m below 50mg/L
3/ d), ammonia nitrogen is below 5mg/L; Removal effect to TN, TP all is better than the treatment effect that actual sewage treatment plant moves single adsorption biodegradation.
(3) contain phosphorus concentration when disposing of sewage when not high, operation A
2/ O technology can efficient economy the biological carbon and phosphorous removal that carries out handle; Contain phosphorus concentration when disposing of sewage higher and when requiring denitrogenation, operation UCT technology can effectively improve phosphor-removing effect, and can guarantee the denitrogenation requirement.The utility model carries out sewage disposal in integrated reactor, can conserve space and cost of investment; And in conjunction with two kinds of sewage treatment process, the integration technology advantage can be according to the requirement of different sewage processing, and flexible operates.
Description of drawings
Fig. 1 is the utility model integral combined process municipal sewage treatment structure of reactor synoptic diagram;
The integrated combination process municipal sewage treatment of Fig. 2-1 reactor A
2/ O technology is to the removal effect synoptic diagram of COD;
The integrated combination process municipal sewage treatment of Fig. 2-2 reactor UCT technology is to the removal effect synoptic diagram of COD;
Fig. 3-1 is the integrated combination of the utility model A
2The removal effect synoptic diagram of/O technology municipal sewage treatment ammonia nitrogen;
Fig. 3-2 is the removal effect synoptic diagram of the integrated combination of the utility model UCT technology municipal sewage treatment to ammonia nitrogen;
Fig. 4-1 is the integrated combination of the utility model A
2The municipal sewage treatment of/O technology is to the removal effect synoptic diagram of TN;
Fig. 4-2 is the removal effect synoptic diagram of the integrated combination of the utility model UCT technology municipal sewage treatment to TN;
Fig. 5-1 is the integrated combination of the utility model A
2The municipal sewage treatment of/O technology is to the removal effect synoptic diagram of TP.
Fig. 5-2 is the removal effect synoptic diagram of the integrated combination of the utility model UCT technology municipal sewage treatment to TP.
Embodiment
Come below in conjunction with Figure of description that the utility model is described in further detail, but the utility model scope required for protection is not limited to the scope described in the embodiment.
Device of the present utility model as shown in Figure 1, A
2The integrated combined sewage water treatment reactor of/O and UCT technology comprises water inlet pipe 1, anaerobic zone 2, anaerobic zone division plate 3, diving plug-flow stirrer 4, oxygen-starved area 5, oxygen-starved area division plate 6, aerobic zone 7, aerobic zone dividing plate 8, micro-pore aeration dish 9, commutating zone 10, settling region 11 and exhalant region 12.By water (flow) direction, water inlet pipe 1 is located at the bight of anaerobic zone 2; All be provided with 2 diving plug-flow stirrers 4 in anaerobic zone 2 and the oxygen-starved area 5; Anaerobic zone division plate 3 oxygen-starved area division plates 6 and aerobic zone dividing plate 8 are divided into three lattice, four lattice and three lattice with anaerobic zone 2, oxygen-starved area 5 and aerobic zone 7 respectively; In three lattice of aerobic zone, be provided with 42 micro-pore aeration dishes 9; 2 gas blowers 18 are connected with aerobic zone 7.Commutating zone 10 is located at the front end of settling region 11; Exhalant region 12 is located at the end of settling region 11.A
2The integrated combined sewage water treatment reactor of/O and UCT technology also is provided with reflux sludge tube 13, reflux sludge tube 14, excess sludge comb 15, mixed-liquor return pipe 16 and mixed-liquor return pipe 17; Reflux sludge tube 13 and reflux sludge tube 14 11 are connected to anaerobic zone 2 and oxygen-starved area 5 from the settling region respectively, and excess sludge comb 15 is in communication with the outside after being located at the pipeline of reflux sludge tube 13; This mode of connection can also be that 2 14 of one of reflux sludge tube 13 and reflux sludge tube drawn from the settling region by same pipeline, is connected respectively to anaerobic zone 2 and oxygen-starved area 5 again.Mixed-liquor return pipe 16 and mixed-liquor return pipe 17 are connected to the front end of oxygen-starved area 5 and anaerobic zone 2 respectively by the end of the end of aerobic zone 7 and oxygen-starved area 5.In above-mentioned all reflux sludge tubes and the mixed-liquor return pipe valve is set.As operation A
2During/O technology, open reflux sludge tube 13 and mixed-liquor return pipe 16, closing volume sludge pipe 14, mixed-liquor return pipe 17 and excess sludge pipe 15; When operation UCT technology, open reflux sludge tube 14, mixed-liquor return pipe 16 and mixed-liquor return pipe 17, closing volume sludge pipe 13 and excess sludge pipe 15.
On the 2 14 shared pipelines of one of reflux sludge tube 13 and reflux sludge tube, and one of mixed-liquor return pipe 16 and mixed-liquor return pipe 2 17 be respectively equipped with residual sea water pump 19.
A
2The integrated combined sewage water treatment reactor of/O and UCT technology is provided with 4 diving plug-flow stirrers, two gas blower 18 diving plug-flow stirrers can controlling reactor in anaerobic zone and oxygen-starved area dissolved oxygen be 0.1～0.6mg/L.Gas blower aeration control aerobic zone dissolved oxygen is 1～3mg/L.
Improvements of the present utility model are alternate run A in integrated reactor
2/ O technology and UCT technology are provided with all return-flow systems of two kinds of technologies, control closing down of each return-flow system by valve, flexibly two kinds of technologies of alternate run.
The utility model is handled Guangzhou sewage work actual cities sewage with above-mentioned integral combined process reactor, and useful volume is 190m
3, treatment scale is 312m
3/ d, aerobic zone hydraulic detention time are 5.84 hours, and the anaerobic zone hydraulic detention time is 1.45 hours, and the oxygen-starved area hydraulic detention time is 2.25 hours.
Implementation result:
1, the removal effect of COD
By accompanying drawing 2-1, Fig. 2-2 as can be seen integral combined process city domestic sewage treatment reactor COD is had the good treatment effect.For handling real life sewage, water inlet COD is 150～250mg/L, and the water outlet COD of A2/O and the integrated combined sewage water treatment reactor of UCT technology remains on below the 50mg/L, all can reach country's discharging primary standard.
2, the removal of nitrogen
2.1 the nitrification of ammonia nitrogen
By accompanying drawing 3-1, Fig. 3-2 as can be seen, under the enough situation of basicity, integral combined process city domestic sewage treatment reactor is very thorough for the nitrification of ammonia nitrogen.A
2The integrated combined sewage water treatment reactor of/O and UCT technology in handling the process of sanitary sewage, influent ammonia nitrogen be 20mg/L, TN under the situation of mg/L more than 20, the final outflow water ammonia nitrogen all remains on below the 5mg/L, clearance wherein moves A more than 80%
2During/O technology the water outlet ammonia nitrogen some float, the water outlet ammonia nitrogen all remains on about 2mg/L during operation UCT technology.The existing large size city sewage work in Guangzhou technology ammonia nitrogen removal frank has only about 70%～80%, compares and has improved nitrogen removal rate about 10%.
2.2 denitrification denitrogenation effect
In the oxygen-starved area, denitrifying bacterium utilizes the COD of readily biodegradable in the water inlet to make electron acceptor(EA), makes nitrate be reduced into N
2Thereby, the nitrogen nutrition element is removed from water body.At A
2In the integrated combined sewage water treatment reactor of/O and UCT technology, A
2/ O technology and UCT technology all can effectively be carried out the denitrification denitrogenation effect, and shown in Fig. 4-1, Fig. 4-2, the water outlet total nitrogen remains on about 10mg/L, and nitrogen removal rate is more than 50%.Under to real life sewage, TN influent concentration height, the bigger situation that fluctuates, improve the denitrification denitrogenation effect, can suitably increase the hydraulic detention time of oxygen-starved area, each conversion zone dissolved oxygen of strict controlling reactor is created good denitrification denitrogenation effect under the hypoxia.Guangzhou large size city sewage work technology nitrogen removal rate has only about 30%～40%, compares and has improved nitrogen removal rate about 20%.
3, the removal of P
The influence factor of the removal of phosphorus is also more.A
2The integrated combined sewage water treatment reactor of/O and UCT technology can be eliminated the influence of the influence of DO, organic influence, nitrate as far as possible.The existence of oxygen-starved area is put the place of phosphorus for polyP bacteria provides an anaerobism, and directly the organism in the water inlet provides matrix for follow-up aerobic poly-phosphorus effect, eliminates the influence of nitrate nitrogen to the release of phosphorus to greatest extent from the oxygen-starved area backflow mixed liquor.
Shown in Fig. 5-1, Fig. 5-2, when total phosphorus changes more than 2mg/L in the real life sewage of water inlet, A
2The integrated combined sewage water treatment reactor operation of/O and UCT technology A
2/ O technology, though can be good carry out denitrification denitrogenation, the phosphor-removing effect shakiness, water outlet TP is about 0.5mg/L, the TP clearance is about 80%; At this moment move UCT technology, can keep water outlet TP about 0.2mg/L, clearance is more than 80%.A
2The good phosphor-removing effect that the integrated combined sewage water treatment reactor of/O and UCT technology obtains under the situation to real life sewage treatment project state if will further improve dephosphorizing rate, can suitably increase the hydraulic detention time of anaerobic zone.Guangzhou large size city sewage work technology biological phosphate-eliminating clearance has only about 60%, compares to have improved and removes tp removal rate more than 20%.
Comprehensive above-mentioned experiment, the utility model integral combined process city domestic sewage treatment reactor is as follows to the removal effect of pollutent: the removal effect to COD, ammonia nitrogen is good, and water outlet COD is below 50mg/L, and the ammonia nitrogen water outlet is below 5mg/L; The TN clearance at the TN clearance about 50%; To the clearance of TP about 80%.
Claims (6)
1, A
2The integrated combined sewage water treatment reactor of/O and UCT technology comprises anaerobic zone (2), oxygen-starved area (5), aerobic zone (7) and settling region (11), and water inlet pipe (1) is located at the bight of anaerobic zone (2); All be provided with diving plug-flow stirrer (4) in anaerobic zone (2), oxygen-starved area (5); Aerobic zone (7) is provided with a plurality of micro-pore aeration dishes (9); The front end of settling region (11) is provided with commutating zone (10), and the rear end is provided with exhalant region (12), and gas blower (18) is connected with aerobic zone (7); It is characterized in that, be provided with one of reflux sludge tube of valve (13) and reflux sludge tube two (14) (11) are connected to anaerobic zone (2) and oxygen-starved area (5) from the settling region respectively, be provided with two (17) of one of mixed-liquor return pipe of valve (16) and mixed-liquor return pipe is connected to oxygen-starved area (5) and anaerobic zone (2) respectively by the end of the end of aerobic zone (7) and oxygen-starved area (5) front end.
2, A according to claim 1
2The integrated combined sewage water treatment reactor of/O and UCT technology is characterized in that described reactor also is provided with excess sludge comb (15), after excess sludge comb (15) is located at the pipeline of one of reflux sludge tube (13), connects with the external world.
3, A according to claim 1 and 2
2The integrated combined sewage water treatment reactor of/O and UCT technology is characterized in that described anaerobic zone (2), oxygen-starved area (5) and aerobic zone (7) are respectively equipped with anaerobic zone division plate (3), oxygen-starved area division plate (6) and the aerobic plate (8) that separates; Anaerobic zone division plate (3), oxygen-starved area division plate (6) and aerobic zone dividing plate (8) are divided into three lattice, four lattice and three lattice with anaerobic zone (2), oxygen-starved area (5) and aerobic zone (7) respectively.
4, A according to claim 3
2The integrated combined sewage water treatment reactor of/O and UCT technology is characterized in that being provided with 42 micro-pore aeration dishes in three lattice of aerobic zone (7).
5, A according to claim 1
2The integrated combined sewage water treatment reactor of/O and UCT technology, it is characterized in that one of described reflux sludge tube (13) and reflux sludge tube two (14) by same pipeline from the settling region (11) draw, be connected respectively to anaerobic zone (2) and oxygen-starved area (5) again.
6, A according to claim 5
2The integrated combined sewage water treatment reactor of/O and UCT technology, it is characterized in that on two (14) the shared pipelines of one of described reflux sludge tube (13) and reflux sludge tube, and one of mixed-liquor return pipe (16) and mixed-liquor return pipe two (17) be respectively equipped with residual sea water pump (19).
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| Application Number | Priority Date | Filing Date | Title |
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| CNU200720061871XU CN201141000Y (en) | 2007-12-18 | 2007-12-18 | A2/O and UCT technique integrated composite sewage treatment reactor |
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| Application Number | Priority Date | Filing Date | Title |
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| CNU200720061871XU CN201141000Y (en) | 2007-12-18 | 2007-12-18 | A2/O and UCT technique integrated composite sewage treatment reactor |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101205100B (en) * | 2007-12-18 | 2010-05-19 | 华南理工大学 | Integral combined process treatment reactor for city sewage |
| CN103693818A (en) * | 2013-12-31 | 2014-04-02 | 北京京诚科林环保科技有限公司 | Coking wastewater biochemical treatment and sedimentation tank |
| CN104556381A (en) * | 2015-01-01 | 2015-04-29 | 北京工业大学 | Device and method for strengthening denitrification and advanced nitrogen removal of internal carbon source by improved UCT sectional water feeding process |
| CN106517678A (en) * | 2016-12-29 | 2017-03-22 | 华南理工大学 | Rural domestic wastewater integrated processing device and technology |
| CN108569762A (en) * | 2018-05-09 | 2018-09-25 | 江苏大楚环保设备有限公司 | A kind of multifunctional all domestic sewage treatment device |
| CN108862560A (en) * | 2018-07-25 | 2018-11-23 | 苏州市排水有限公司 | A kind of multi-mode integrated sewage treating apparatus |
| CN110002691A (en) * | 2019-05-10 | 2019-07-12 | 北京工业大学 | UCT, which is improved, by intermittent aerating couples the apparatus and method that autotrophic denitrification realizes the dephosphorization of low carbon source urban sewage advanced nitrogen |
| CN110713256A (en) * | 2019-10-14 | 2020-01-21 | 上海理工大学 | Biological pipe culvert reaction unit |
-
2007
- 2007-12-18 CN CNU200720061871XU patent/CN201141000Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101205100B (en) * | 2007-12-18 | 2010-05-19 | 华南理工大学 | Integral combined process treatment reactor for city sewage |
| CN103693818A (en) * | 2013-12-31 | 2014-04-02 | 北京京诚科林环保科技有限公司 | Coking wastewater biochemical treatment and sedimentation tank |
| CN103693818B (en) * | 2013-12-31 | 2014-12-10 | 北京京诚科林环保科技有限公司 | Coking wastewater biochemical treatment and sedimentation tank |
| CN104556381A (en) * | 2015-01-01 | 2015-04-29 | 北京工业大学 | Device and method for strengthening denitrification and advanced nitrogen removal of internal carbon source by improved UCT sectional water feeding process |
| CN104556381B (en) * | 2015-01-01 | 2016-08-24 | 北京工业大学 | The device and method of improvement UCT step feed technology strengthening internal carbon source denitrification advanced nitrogen |
| CN106517678A (en) * | 2016-12-29 | 2017-03-22 | 华南理工大学 | Rural domestic wastewater integrated processing device and technology |
| CN108569762A (en) * | 2018-05-09 | 2018-09-25 | 江苏大楚环保设备有限公司 | A kind of multifunctional all domestic sewage treatment device |
| CN108862560A (en) * | 2018-07-25 | 2018-11-23 | 苏州市排水有限公司 | A kind of multi-mode integrated sewage treating apparatus |
| CN108862560B (en) * | 2018-07-25 | 2024-02-13 | 苏州市排水有限公司 | Multi-mode integrated sewage treatment device |
| CN110002691A (en) * | 2019-05-10 | 2019-07-12 | 北京工业大学 | UCT, which is improved, by intermittent aerating couples the apparatus and method that autotrophic denitrification realizes the dephosphorization of low carbon source urban sewage advanced nitrogen |
| CN110713256A (en) * | 2019-10-14 | 2020-01-21 | 上海理工大学 | Biological pipe culvert reaction unit |
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| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20081029 Effective date of abandoning: 20071218 |