CN1473774A - Reaction pool of waste water biological treatment - Google Patents
Reaction pool of waste water biological treatment Download PDFInfo
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- CN1473774A CN1473774A CNA03141818XA CN03141818A CN1473774A CN 1473774 A CN1473774 A CN 1473774A CN A03141818X A CNA03141818X A CN A03141818XA CN 03141818 A CN03141818 A CN 03141818A CN 1473774 A CN1473774 A CN 1473774A
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- reaction tank
- aeration
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- sewage treatment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Activated Sludge Processes (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The reaction pool for biological waste water treatment includes three pool units communicated via pipe, each pool unit is provided with aeration diffuser and stirrer, and the pool units in two ends has water inlet, water outlet, water draining weir and sludge draining outlet. Based on the features of biological waste water treatment combining alternate running and homogeneously blowing and aeration, the arranged heights of the aeration diffusers are regulated to balance the oxygen supply and realize the reasonable arrangement of the whole aeration system.
Description
Technical field:
The present invention is civil engineering work and the related technical field of sewage treatment of environmental engineering, is specifically related to the biological sewage treatment reaction tank of the even blast aeration of a kind of alternate run of sewage work.
Background technology:
At present, all relate to the biological sewage treatment reaction tank in sewage work's design and operation process, sewage is by the various effects of active sludge in the biological reaction tank, and the pollutent in the degradation of sewage discharges after reaching emission standard.
Sludge System of the prior art mainly is made up of reaction tank, aerating system, mud return-flow system and excess sludge discharge system etc.Wherein, the active sludge that reaction tank is made up of various microorganisms contact with the organic pollution materials thorough mixing in the sewage and and then with the place of its decomposition, be the core of activated sludge process.The effect of aerating system is to supply with microorganisms grow and the necessary oxygen of decomposing organic pollutant to reaction tank, and rises and mix stirring action, and active sludge is contacted with the organic pollution materials thorough mixing.Aerator mainly contains stem-winder expose to the sun equipment and blast aeration equipment by aeration mode.Realize multiple factor analyses such as principle, the MLSS scope of application, the available depth scope of application, D0 regulation and control level and operational management handiness based on power consumption, oxygen-transfer efficiency, aeration, aerating system adopts blast aeration more, with the diffusion facilities of compressed air delivery to the aeration tank, be dispensed into mixed solution with the microbubble state, oxygen in the bubble is diffused in the mixed solution, for the active sludge growth rapidly.Organic matter degradation effect by active sludge under the aerobic condition, nitrification and poly-phosphorus effect and lack, anaerobic condition down denitrification and release the phosphorus effect, C, N, the equal qualified discharge of P pollution substance in the realization sewage.
In traditional biological reaction tank, pipe duct between each lattice aeration tank or aperture connect the head loss meeting that produces to be made water level in each lattice aeration tank there is some difference, because the general ring-type of wind-distributing pipe connects, the blast basic equalization of each lattice aeration tank, and general installation of each lattice aeration dispersion device places sustained height, thereby causes each aeration tank gas distribution inequality.The size of the head loss between the aeration tank can produce remarkably influenced to aeration tank gas distribution homogeneity.This situation is particularly evident in the biologic process for treating sewage of alternate run blast aeration.Because the waterhead in pond among the Bian Chiyu, the pond aeration rate is more a lot of greatly than limit pond in causing, control pond, limit intake valve standard-sized sheet and middle pond intake valve only open 40% also difficulty meet the demands.And middle pond, pond, limit needs more tolerance, thereby causes energy wastage, even influences wastewater treatment efficiency.
In addition, by biological respinse, the Pollutant levels in the aeration tank progressively reduce with flow process, and actual oxygen requirement longshore current journey reduces gradually, and aerating apparatus uniform distribution in the traditional technology causes biological reaction tank leading portion oxygen-supplying amount deficiency, and back segment oxygen-supplying amount surplus.This situation is comparatively general in conventional pulling flow type technology.
More than two kinds of situations all can cause the imbalance of oxygen supply, for satisfying the needs of each lattice aeration tank oxygen amount, on the basis that must make full use of each reaction grid pond inlet open degree linear regulation, must strengthen the air blast air demand, thereby cause the energy wastage of oxygen system, increase the daily running cost of sewage work.
Summary of the invention:
But the object of the present invention is to provide the biological sewage treatment reaction tank of the even blast aeration of a kind of alternate run, solve each lattice aeration tank in traditional reaction tank because waterhead and Pollutant levels change the oxygen supply imbalance problem that causes, realize whole aerating system reasonable Arrangement and cost-effective purpose.
To achieve these goals, technical scheme of the present invention is: a kind of biological sewage treatment reaction tank, it mainly comprises reaction tank, be located at aeration dispersion device and whipping appts in the pond, it is characterized in that: described reaction tank is divided into 3 unit cells, pipeline connects between 3 unit cells, and each unit cells all is provided with aeration dispersion device and whipping appts, and the unit cells on both sides is provided with intake-outlet, effluent weir and mud discharging mouth.
Description of drawings:
Fig. 1 is (8hr) the internal reaction pond running condition synoptic diagram of a kind of technique initialization cycle of the present invention
Fig. 2 is (8hr) the internal reaction pond running condition synoptic diagram of another kind of technique initialization cycle of the present invention
Fig. 3 is the upper strata floor plan synoptic diagram of one embodiment of the invention
Fig. 4 is lower floor's floor plan synoptic diagram of one embodiment of the invention
Fig. 5 is that the facade of one embodiment of the invention is arranged synoptic diagram
Fig. 6 arranges synoptic diagram for the aeration dispersion device among the present invention
Fig. 7 is that reaction grid pond, limit and middle reaction grid pond aeration dispersion device are installed between elevation difference and designing treatment flow and pond communicating pipe size relationship table
Embodiment:
The invention will be further described below in conjunction with drawings and Examples.
The present invention mainly comprises reaction tank, be located at aeration dispersion device 1 and whipping appts 2 in the pond, it is characterized in that: described reaction tank is divided into 3 unit cells 3, pipeline connects between 3 unit cells, each unit cells 3 all is provided with aeration dispersion device 1 and whipping appts 2, and the unit cells on both sides is provided with intake-outlet 4, effluent weir 5 and mud discharging mouth 6.
In attached Fig. 1 and 2, S represents precipitation, and DN represents anaerobism, anoxic, and t represents sequential, and N represents aerobic nitrification, and T represents the residence time (h).
The present invention is in conjunction with the biologic process for treating sewage characteristics of the even blast aeration of alternate run, difference according to water level in sewage disposal scale and the aeration tank, adjust the layout height of aeration dispersion device, change original aeration dispersion device and be installed in sustained height, reduce the mounting height of the aeration dispersion device in the lower middle lattice aeration tank of water level, solve each lattice aeration tank in traditional reaction tank because waterhead and Pollutant levels change the oxygen supply imbalance problem that causes, realize whole aerating system reasonable Arrangement.Mounting height decline scope is 3 ~ 12cm, to adapt to the even air feed requirement of the biological reaction tank that single pond treatment scale is 0.1m3/s ~ 0.5m3/s (about 1 ~ 40,000 m3/d) (total about 1 ~ 400,000 m3/d of treatment scale).Its concrete feature is as follows:
1, biological reaction tank is complied with traditional activated sludge process integrative development trend, is novel integrated activated sludge processing.The reaction tank profile is a rectangle form pool body, divides equally 3 equal square shaped cells ponds, and waterpower connects between 3 unit cells, is provided with blast main 12 between unit cells.Aeration dispersion device and whipping appts all are set in each unit cells, side in unit cells is provided with electronic air intake butterfly valve 7, opposite side is provided with electromotive intake valve door 9, in unit cells, be provided with agitator 10 under water, wherein the both sides lattice have aeration, precipitation dual-use function, and set out the discharging that mill weir and excess sludge discharge mouth are realized water outlet and excess sludge respectively, also be provided with current stabilization water distribution valve 11.
2, the great advantage of biological reaction tank is alternate run and time circulation.Sewage can enter any one in 3 unit cells, water inlet continuously, cycle alternate run.By Adjustment System operation, can realize the space-time control of sewage treatment process, form aerobic, anaerobism and anoxia condition.The waterpower design of flexibility and changeability is easy to change water entry and water exit position.
3, the biological reaction tank alternate run has following characteristics:
The reaction tank compact construction is integrated, and square pond can shared pool wall.
Need not to establish in addition secondary sedimentation basins and mud and collect return-flow system.
Alternately change water entry, improve the system sludge load, can effectively suppress sludge bulking by biological absorption regeneration effect.
Can realize the denitrogenation dephosphorizing of sewage by change system anaerobism, anoxic and the adjusting of aerobic period.
Precipitation lattice solid-liquid separation can guarantee solid-liquid separation effect almost carrying out under the immobilized condition fully.
Be easy to realize automatic control.The ORP that DO according to aerobic processes detected, detested the anoxic process detects and reaction tank MLSS detection, by changing air input, change the water entry position, changing aerobic and detest the anoxic period, and utilization precipitates the anoxic condition of detesting in latter stage, the space-time control of efficient realization system, remove the organism in the sewage, realize the denitrogenation dephosphorizing function of sewage.
But 4, the 1. aerobic water inlet of three lattice biological reaction tank simple realization, aerobic, precipitated outlet water be precipitated outlet water, aerobic, aerobic water inlet and in conjunction with the conventional activated sludge process of transitory stage 2., also can realize 1. detesting anoxic water inlet, aerobic, 2. aerobic, the aerobic water inlet of precipitated outlet water, precipitated outlet water in the different periods according to this; 3. quiet sink, detest anoxic water inlet, precipitated outlet water 4. precipitated outlet water, aerobic, detest anoxic intake 5. precipitated outlet water, aerobic, detest anoxic intake 6. precipitated outlet water, aerobic water inlet, aerobic 7. precipitated outlet water, detest anoxic water inlet, the quiet heavy denitrification dephosphorization technique of 8. detesting various operational modes such as anoxic water inlet, aerobic, precipitated outlet water.
5, the whipping appts of arranging in any lattice biological reaction tank can put into operation at aeration phase when preventing to detest anoxic stage sludge settling function, increases the thorough mixing agitating function of active sludge and entering organic matter of water.
6, according to the concrete characteristics of macro-organism reaction tank, every reaction grid pond branch behind total water entry is laid, and improves the aeration and the mixing effect of reaction tank, and water entry is arranged in depth of water below, avoid water initial stage into to the pond at the bottom of the shock action of aeration dispersion device.
7, according to the concrete characteristics of macro-organism reaction tank, spoil disposal pipe network 8 is arranged in reaction grid pond, both sides before total spoil disposal point, and the perforation sludge pipe is provided with eyelet at a certain distance, the downward and midperpendicular angle at 45 of eyelet, and cross arrangement.Be to improve excess sludge discharge concentration, reduce the processing load of follow-up sludge concentration device, reaction tank can carry out the gap spoil disposal in the specific period (as precipitated outlet water latter stage).
8, the macro-organism reaction tank is because single reaction grid pool size is bigger, for avoiding the short stream of both sides lattice water outlet, middle lattice and both sides lattice are by realizing that waterpower connects communicating pipe at the bottom of the pond, the import and export of both sides lattice are arranged on centre at the bottom of the pond, it is consistent as far as possible in square pond to use the current attitude, avoids because water outlet inequality that employing mid-board pool wall communicating aperture causes and the function between the adjacent lattice are disturbed.The both sides lattice are arranged stabilizing feed well simultaneously, prevent into water to the disturbance of precipitating sludge, and improve the water distribution effect.Import and export with middle reaction grid pond are arranged near both sides Ge Chu in addition, with the aeration or the agitating function characteristics of lattice in the combination, and the short stream of the Inlet and outlet water of lattice in avoiding.
9, on the basis of adopting ring-type inlet pipe and the linear adjustable control of each reaction grid pond intake valve air input, characteristics according to the biological reaction tank alternate run, on the basis of conventional aeration dispersion device decoration form, the mounting height of the aeration dispersion device in reaction grid pond in suitably reducing causes the remarkable inequality of air demand to avoid different reaction grids pond owing to waterhead.
10, based on the variation of Pollutant levels in the apposition biological reaction tank not, adjust the aeration rate in both sides lattice and middle reaction grid pond, suitably amplify the aeration rate of both sides lattice, realize on the whole flow process the decrescence pulling flow type process characteristic of aeration.
The sewage treatment process that above-mentioned feature of the present invention constitutes has significant technical characterstic:
One has embodied the technical characterstic that the decrescence aerating activated sludge process of total system combines with the complete mixing active sludge method in single reaction grid pond.Arrange by the air input of adjusting reaction pool side lattice and middle lattice, overcome oxygen supply in the conventional activated sludge process, aerobic unbalanced problem.Simultaneously, in the concrete layout of the mounting height of apposition not, solved the inhomogeneous influence of significant air feed that different reaction grid pool water level differences cause air-blast system by aerating apparatus.
Its two, embodied the incorporate technical characterstic of Sewage treatment systems.fully receive T type oxidation ditch system flexible operation and also need not second pond and the basis of mud return-flow system on, improved aeration mode, improved the aeration effect in different reaction grids pond, increased available depth, reduced floor space, changing single pond plug-flow mode is complete hybrid mode, makes the active sludge of entire treatment system be in identical load, has improved the metabolic rate of microorganism.The process characteristic of alternate run has received the technical characterstic of AAO technology and inversion A AO technology when solving traditional SBR technology gap operation problem.
Its three, embodied the sewage comprehensive treating process to realize the technical characterstic of qualified discharge.When realizing that wastewater efficient is handled, reduced sludge yield.Simultaneously, the design of intensification helps the closed layout of sewage treatment structure, can realize that sewage, mud produce the effective collection and the joint disposal of gas.
Its four, embodied the technical characterstic that modern sewage treatment process combines with the modern control technology progress.The process characteristic utilization advanced person's of alternate run robot control system(RCS) is easy to realize reliability, the handiness of operation of sewage disposal system.
Its five, embodied the modular technology characteristics of modern sewage treatment process.In intensification, regularization design, be easy to realize the module grouping of total system, strengthened the suitable ability of this sewage treatment process in large, medium and small type sewage work.
Claims (6)
1, a kind of biological sewage treatment reaction tank, it mainly comprises reaction tank, be located at aeration dispersion device and whipping appts in the pond, it is characterized in that: described reaction tank is divided into 3 unit cells, pipeline connects between 3 unit cells, each unit cells all is provided with aeration dispersion device and whipping appts, and the unit cells on both sides is provided with intake-outlet, effluent weir and mud discharging mouth.
2, a kind of biological sewage treatment reaction tank according to claim 1, it is characterized in that: reaction tank is a rectangle, the square of 3 unit cells for equating, temporary location pond and both sides unit cells are by realizing that current connect communicating pipe.
3, a kind of biological sewage treatment reaction tank according to claim 1 and 2 is characterized in that: the intake-outlet of both sides unit cells is arranged near the centre at the bottom of the pond, and is being provided with stabilizing feed well near the water outlet place.
4, a kind of biological sewage treatment reaction tank according to claim 1 and 2 is characterized in that: according to the concrete characteristics of macro-organism reaction tank, water entry is laid in every lattice unit process pond behind water-in, and water entry is arranged in depth of water below.
5, a kind of biological sewage treatment reaction tank according to claim 1 and 2, it is characterized in that: lattice unit process pond, both sides is provided with sludge pipe, before the mud discharging mouth, arrange the spoil disposal pipe network, the perforation sludge pipe is provided with eyelet at a certain distance, eyelet downwards and midperpendicular in angle of 45 degrees, and cross arrangement.
6, a kind of biological sewage treatment reaction tank according to claim 1 and 2 is characterized in that: the discrepancy in elevation that the aeration dispersion device that the both sides unit cells all is provided with and the aeration dispersion device in temporary location pond are installed is 3-12 centimetre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB03141818XA CN1319874C (en) | 2003-07-25 | 2003-07-25 | Reaction pool of waste water biological treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB03141818XA CN1319874C (en) | 2003-07-25 | 2003-07-25 | Reaction pool of waste water biological treatment |
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| Publication Number | Publication Date |
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| CN1473774A true CN1473774A (en) | 2004-02-11 |
| CN1319874C CN1319874C (en) | 2007-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB03141818XA Expired - Lifetime CN1319874C (en) | 2003-07-25 | 2003-07-25 | Reaction pool of waste water biological treatment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108815892A (en) * | 2018-05-22 | 2018-11-16 | 上海市政工程设计研究总院（集团）有限公司 | A kind of installation and application method of the hydraulic cyclone disperser for setting pot |
| CN110422924A (en) * | 2019-08-09 | 2019-11-08 | 安徽国祯环保节能科技股份有限公司 | Integrated aerobic biological treatment device realizes the method that pulling flow type is decrescence aerated |
| CN110467258A (en) * | 2019-07-12 | 2019-11-19 | 四川星光华丰环保科技有限公司 | UASBR sewage-treatment plant and its sewage water treatment method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2218176Y (en) * | 1994-05-12 | 1996-01-24 | 张鸿模 | Wastewater purifying apparatus used for discontinuous activated sludge process |
| JP3076262B2 (en) * | 1997-04-24 | 2000-08-14 | 大阪ミツワ株式会社 | Oil-containing wastewater treatment equipment |
| CN1412133A (en) * | 2001-10-15 | 2003-04-23 | 中国市政工程华北设计研究院 | Air-stirring sludge-refluxing chemical flocculation precipitation sewage treatment method |
| CN1182052C (en) * | 2003-01-17 | 2004-12-29 | 清华大学 | Process and apparatus for wastewater by batched membrane-bioreactor |
-
2003
- 2003-07-25 CN CNB03141818XA patent/CN1319874C/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108815892A (en) * | 2018-05-22 | 2018-11-16 | 上海市政工程设计研究总院（集团）有限公司 | A kind of installation and application method of the hydraulic cyclone disperser for setting pot |
| CN110467258A (en) * | 2019-07-12 | 2019-11-19 | 四川星光华丰环保科技有限公司 | UASBR sewage-treatment plant and its sewage water treatment method |
| CN110422924A (en) * | 2019-08-09 | 2019-11-08 | 安徽国祯环保节能科技股份有限公司 | Integrated aerobic biological treatment device realizes the method that pulling flow type is decrescence aerated |
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| CN1319874C (en) | 2007-06-06 |
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Granted publication date: 20070606 |