CN105036466A - B-circulating fluidized bed aerobic system - Google Patents
B-circulating fluidized bed aerobic system Download PDFInfo
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- CN105036466A CN105036466A CN201510407475.7A CN201510407475A CN105036466A CN 105036466 A CN105036466 A CN 105036466A CN 201510407475 A CN201510407475 A CN 201510407475A CN 105036466 A CN105036466 A CN 105036466A
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Abstract
The invention discloses a B-circulating fluidized bed aerobic system. The aerobic system is a vertical type structure, and comprises an anaerobic reaction region, a hypoxic reaction region, an aerobic reaction region and a settling region which are connected in sequence, wherein the anaerobic reaction region is positioned below the system; the hypoxic reaction region region and the aerobic reaction region are positioned above the anaerobic reaction region, and are communicated and circulated with each other; and the settling region is positioned at the side of the anaerobic reaction region and is communicated with a water outlet of the aerobic reaction region. The aerobic system disclosed by the invention adopts an integrated design, and realizes that the whole set of equipment is movable, flexible and various in application; and different treatment processes are adopted for different kinds of wastewater, so that efficient and stable denitrification and phosphorous removal needs of wastewater are met.
Description
Technical field
The present invention relates to a kind of sewage treatment equipment, particularly a kind of B-circulating fluidized bed aerobic system realizing integrated waste water aerobic process, denitrogenation dephosphorizing.
Background technology
Along with the development of society; people are more and more higher to environmental protection requirement; but urban life discharge of wastewater point dispersion at present; there is no perfect collection facility; processing rate is not high; China still has many cities and towns to fail, to sanitary wastewater process, directly to drain into the water bodys such as rivers lake, cause larger pollution to environment.Because the fluctuation of town sewage change of water quality is large, containing a certain amount of nitrogen, phosphorus, biodegradability is strong, and therefore integrated wastewater treatment equipment tries out the sanitary wastewater process in this dispersiveness especially.The sewage treatment equipment development existing 30 years of researches history so far of integration, the countries and regions such as current Japan is American-European have been widely used in urban life waste water and part Industrial Wastewater Treatment.Chinese scholar conducts extensive research integrated wastewater treatment equipment in recent years, and the technique that equipment adopts develops into the recombining process of multiple methods combining gradually from originally single activated sludge process or biomembrance process.It has that floor space is little, technique is complete, processing efficiency is high, the feature of stable water outlet and Integral movable.But the purposes of legacy equipment is more single, various wastewater treatment process can not be applicable to, the demand of denitrogenation dephosphorizing waste water being carried out to efficient stable can not be met.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of B-circulating fluidized bed aerobic system, and this system utilizes A
2o technique, Nitrogen/Phosphorus Removal is obvious, and adopts anaerobic-anoxic-oxic to superpose from the bottom to top, namely forms respective independent biochemical space, can form again the circulation of each system element, meet the demand of denitrogenation dephosphorizing waste water being carried out to efficient stable.
B-circulating fluidized bed aerobic system of the present invention is vertical structure, it comprise connect successively anaerobic reaction district 1, hypoxia response district 3, aerobic reactor zone 4 and settling region 7, anaerobic reaction district 1 is positioned at the below of system, hypoxia response district 3 and aerobic reactor zone 4 are positioned at the top in anaerobic reaction district 1, and the circulation that is interconnected; Settling region 7 is positioned at the side in anaerobic reaction district 1, and is connected with the water outlet of aerobic reactor zone 4.
The top in described anaerobic reaction district 1 is provided with lift pump 2, by lift pump 2, waste water is conveyed into hypoxia response district 3, aerobic reactor zone 4 is provided with brush aeration device, realizes carrying out oxygenation to water body.
The top of described settling region 7 is provided with efficient settler 8, to waste water carry out solid flow point from, the top of efficient settler 8 is provided with effluent weir 6, is emitted by the supernatant liquor of effluent weir 6 by settling region 7.
Described aerobic reactor zone 4 is positioned at the top in hypoxia response district 3, and arrange a flow deflector between the two, one end of this flow deflector upwarps, and the other end has a downwarp, and makes to form left and right between aerobic reactor zone 4 and hypoxia response district 3 and communicates and form circulation shape.
Described anaerobic reaction district 1 adopts flap form to arrange.
B-circulating fluidized bed aerobic system of the present invention has the following advantages:
(1) each processing unit organically combines, collection anaerobe-oxygen deficient+aerobic+be deposited in one.
(2) take up an area province, the lower floor of system is anaerobic reaction district, and middle level is hypoxia response district, and upper strata is aerobic reactor zone, and system total height can design to 8 meters, thus decreases floor space, is particularly suitable for urban land scarce areas.
(3) energy consumption is low, and by ingehious design, system sludge backflow, Digestive system backflow all with in a system, reduce lifting and the conveying of waste water (mud), thus reduce energy consumption.In addition, be upper and lower cyclic design between aerobic reactor zone and hypoxia response district, and play aeration and plug-flow effect by brush aeration device, thus make energy utilization efficiency high.
(4) produce without foul smell, anaerobic reaction district and hypoxia response district are below aerobic reactor zone, and the foul smell produced is after the oxygenation of aerobic reactor zone, and stink disappears.
(5) settling region adopts efficient settler, and sedimentation effect is good.
(6) reduced investment.Because system response is efficient, design loading is high, than traditional aerobic system reduced investment.
Accompanying drawing explanation
Fig. 1 is the structural representation of B-circulating fluidized bed aerobic system of the present invention.
In figure: 1-anaerobic reaction district, 2-lift pump, 3-hypoxia response district, 4-aerobic reactor zone, 5-brush aeration device, 6-effluent weir, 7-settling region, efficient settler 8, flow deflector 9, guide rod 10, dividing plate 11, water shoot 12, water inlet pipe 13.
Fig. 2 is the process flow sheet applying B-circulating fluidized bed aerobic system of the present invention.
Embodiment
Below in conjunction with accompanying drawing, B-circulating fluidized bed aerobic system of the present invention is further described.
As shown in Figure 1, B-circulating fluidized bed aerobic system of the present invention is vertical structure, it comprises the anaerobic reaction district 1 connected successively, hypoxia response district 3, aerobic reactor zone 4, settling region 7, anaerobic reaction district 1 is positioned at the below of system, and adopt flap form to arrange, anaerobic reaction district 1 connects water inlet pipe 13, hypoxia response district 3 and aerobic reactor zone 4 are positioned at the top in anaerobic reaction district 1, and be interconnected circulation, the top in anaerobic reaction district 1 fixedly mounts lift pump 2 by guide rod 10, waste water is conveyed into hypoxia response district 3 by lift pump 2, aerobic reactor zone 4 is positioned at the top in hypoxia response district 3, a flow deflector 9 is set between the two, one end of this flow deflector upwarps, the other end has a downwarp, make between aerobic reactor zone 4 and hypoxia response district 3, to form left and right communicate and form circulation shape.Aerobic reactor zone 4 is provided with brush aeration device 5, to realize carrying out oxygenation, plug-flow to water body.The side that settling region 7 is positioned at anaerobic reaction district 1,3 and aerobic reactor zone 4 are reacted in oxygen-starved area, arrange dividing plate 11 between the top of settling region 7 and aerobic reactor zone 4 to separate, the middle part of settling region 7 is connected with the water outlet of aerobic reactor zone 4, a water outlet part for aerobic reactor zone 4 flows into settling region 7, and another part flows into hypoxia response district 3.The top of settling region 7 is provided with efficient settler 8, and can carry out solid flow point to waste water and be provided with from the top of, efficient settler 8 effluent weir 6 connecting water shoot 12, the supernatant liquor of settling region 7 emits through effluent weir 6, water shoot 12.
When adopting present system process waste water, waste water is entered in anaerobic reaction district 1 by water inlet pipe 13 and fully mixes with high-concentration activated sludge, active sludge completes absorption organic in waste water and Partial digestion fast, simultaneously, polyP bacteria under anaerobic releases phosphorus, and itrogenous organic substance matter also at this, ammonification occurs.Anaerobic reaction district 1 adopts flap form, can be implemented in the finite space and extends retention time of sewage, makes to release phosphorus, ammonification is more thorough.Subsequently, waste water is promoted to hypoxia response district 3 by lift pump 2, and meanwhile, nitric nitrogen directly transfers to hypoxia response district 3 by circulation by aerobic reactor zone 4, at this, nitration reaction occurs and removes nitrogen.Waste water enters aerobic reactor zone 4 subsequently, by brush aeration device 5, oxygenation can be carried out to water body, organism is degraded further, and the synchronous absorption that nitration reaction and phosphorus occur, part mixed-liquor return is to hypoxia response district 1, another part flows into settling region 7, and carrying out solid-liquid separation by efficient settler 8 pairs of waste water, supernatant liquor is through outlet weir 6, water shoot 12 qualified discharge, and in mud, the phosphorus of excessive consumption is got rid of by excess sludge mouth.
B-circulating fluidized bed aerobic system compact construction of the present invention, design loading is high, flexible and changeable, and treatment effect is stablized.
Present system energy consumption is low, and system sludge backflow, Digestive system backflow all with in a system, reduce lifting and the conveying of waste water (mud).
Be the design of upper and lower circulation between aerobic reactor zone of the present invention and anaerobic reaction district, and pass through aeration and the plug-flow effect of brush aeration device, thus energy utilization efficiency is high, noise is low, is well suited for using in city.
Anaerobic reaction district 1 and hypoxia response district 3 are all below aerobic reactor zone 4, and the foul smell produced is after the oxygenation of aerobic reactor zone 4, and stink disappears.
Claims (5)
1.B-circulating fluidized bed aerobic system, it is characterized in that, this aerobic system is vertical structure, it comprise connect successively anaerobic reaction district (1), hypoxia response district (3), aerobic reactor zone (4) and settling region (7), anaerobic reaction district (1) is positioned at the below of system, hypoxia response district (3) and aerobic reactor zone (4) are positioned at the top of anaerobic reaction district (1), and the circulation that is interconnected; Settling region (7) is positioned at the side of anaerobic reaction district (1), and is connected with the water outlet of aerobic reactor zone (4).
2. B-circulating fluidized bed aerobic system according to claim 1, it is characterized in that, the top of described anaerobic reaction district (1) is provided with lift pump (2), by lift pump (2), waste water is conveyed into hypoxia response district (3), (4) are provided with brush aeration device in aerobic reactor zone, realize carrying out oxygenation to water body.
3. B-circulating fluidized bed aerobic system according to claim 1 and 2, it is characterized in that, the top of described settling region (7) is provided with efficient settler (8), to waste water carry out solid flow point from, the top of efficient settler (8) is provided with effluent weir (6), is emitted by the supernatant liquor of effluent weir (6) by settling region (7).
4. B-circulating fluidized bed aerobic system according to claim 1 and 2, it is characterized in that, described aerobic reactor zone (4) is positioned at the top of hypoxia response district (3), a flow deflector is set between the two, one end of this flow deflector upwarps, the other end has a downwarp, and makes to form left and right between aerobic reactor zone (4) and hypoxia response district (3) and communicates and form circulation shape.
5. B-circulating fluidized bed aerobic system according to claim 1 and 2, is characterized in that, described anaerobic reaction district (1) adopts flap form to arrange.
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| CN201510407475.7A CN105036466A (en) | 2015-07-13 | 2015-07-13 | B-circulating fluidized bed aerobic system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105330108A (en) * | 2015-11-23 | 2016-02-17 | 广西博世科环保科技股份有限公司 | Method for treating domestic sewage through anaerobic-contact oxidation bio-membrane reactor and treatment device |
| CN106045209A (en) * | 2016-06-29 | 2016-10-26 | 湖南智水环境工程有限公司 | Vertical integrated equipment for rural domestic sewage treatment |
| CN110526396A (en) * | 2019-07-24 | 2019-12-03 | 华电电力科学研究院有限公司 | A kind of desulfurization wastewater and sanitary sewage Coordination Treatment technique and its integrated apparatus |
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| CN1696069A (en) * | 2004-05-13 | 2005-11-16 | 中国科学院生态环境研究中心 | Integrative reactor for biologic phosphorus removal and denitrogenation from sewage circulated in 3D |
| US20090090670A1 (en) * | 2006-01-25 | 2009-04-09 | Siemens Water Technologies Corp. | Wastewater treatment system and method |
| CN102153239A (en) * | 2011-04-19 | 2011-08-17 | 中冶南方工程技术有限公司 | Process and system for carrying out high-efficiency denitrification and dephosphorization treatment on urban sewage |
| CN204981489U (en) * | 2015-07-13 | 2016-01-20 | 广西博世科环保科技股份有限公司 | Good oxygen system of circulating fluidized bed |
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2015
- 2015-07-13 CN CN201510407475.7A patent/CN105036466A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1696069A (en) * | 2004-05-13 | 2005-11-16 | 中国科学院生态环境研究中心 | Integrative reactor for biologic phosphorus removal and denitrogenation from sewage circulated in 3D |
| US20090090670A1 (en) * | 2006-01-25 | 2009-04-09 | Siemens Water Technologies Corp. | Wastewater treatment system and method |
| CN102153239A (en) * | 2011-04-19 | 2011-08-17 | 中冶南方工程技术有限公司 | Process and system for carrying out high-efficiency denitrification and dephosphorization treatment on urban sewage |
| CN204981489U (en) * | 2015-07-13 | 2016-01-20 | 广西博世科环保科技股份有限公司 | Good oxygen system of circulating fluidized bed |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105330108A (en) * | 2015-11-23 | 2016-02-17 | 广西博世科环保科技股份有限公司 | Method for treating domestic sewage through anaerobic-contact oxidation bio-membrane reactor and treatment device |
| CN105330108B (en) * | 2015-11-23 | 2018-11-30 | 广西博世科环保科技股份有限公司 | Utilize anaerobism-catalytic oxidation biofilm reactor processing sanitary sewage method and processing unit |
| CN106045209A (en) * | 2016-06-29 | 2016-10-26 | 湖南智水环境工程有限公司 | Vertical integrated equipment for rural domestic sewage treatment |
| CN110526396A (en) * | 2019-07-24 | 2019-12-03 | 华电电力科学研究院有限公司 | A kind of desulfurization wastewater and sanitary sewage Coordination Treatment technique and its integrated apparatus |
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Application publication date: 20151111 |