CN202186922U - Air-lift type internal recycle de-nitrogenizing and phosphorus-removing bioreactor - Google Patents

Air-lift type internal recycle de-nitrogenizing and phosphorus-removing bioreactor Download PDF

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Publication number
CN202186922U
CN202186922U CN2011202612216U CN201120261221U CN202186922U CN 202186922 U CN202186922 U CN 202186922U CN 2011202612216 U CN2011202612216 U CN 2011202612216U CN 201120261221 U CN201120261221 U CN 201120261221U CN 202186922 U CN202186922 U CN 202186922U
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pipe
internal recycle
annular
water
taper
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CN2011202612216U
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郑平
张萌
张吉强
季军远
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Zhejiang University ZJU
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Zhejiang University ZJU
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Abstract

The utility model discloses an air-lift type internal recycle de-nitrogenizing and phosphorus-removing bioreactor. A water-distributing and air-distributing area, an internal recycle reaction area and a three-phase separating area are arranged at the main body of the reactor from the lower end to the upper end in turn. A water inlet, a cone-shaped water distribution fluid director, an annular space water outlet, a micro-pore aerator pipe positioning device and a micro-pore aerator pipe are arranged at the water-distributing and air-distributing area. A peripheral annular riser pipe and a central down-flow pipe are arranged at the internal recycle reaction area. A flow guiding pipe capable of guiding to the central down-flow pipe from the peripheral annular riser pipe is arranged at the upper part of the reaction area. The air inlet is arranged at the lower part of the peripheral annular riser pipe. An annular gas-liquid separating pipe, a central sediment area, a cone-shaped gas collecting cover and a gas outlet are arranged on the three-phase separating area. A cone-shaped mud blocking plate is arranged at the middle part of the annular gas-liquid separating pipe along the wall of the inner pipe. An overflow weir and a water outlet are arranged at the upper part of the sediment area. Through the unique structure of the micro-pore aerator pipe and annular gas-liquid separating pipe, the utility model can be used for forming aerobic-anoxic/anoxic environment, and de-nitrogenizing and removing the phosphorus in the waste water synchronously.

Description

A kind of air lift type internal recycle denitrification dephosphorizing bioreactor
Technical field
The utility model relates to a kind of denitrification dephosphorizing bioreactor, relates in particular to a kind of air lift type internal recycle denitrification dephosphorizing bioreactor.
Background technology
China water pollution problems is very serious, and in main lake, the eutrophic lake due to the nitrogen and phosphorus pollution accounts for more than 50%, and the financial loss that annual " wawter bloom " and " red tide " causes is up to over ten billion Yuan.Exploitation high-efficient denitrification and dephosphorization reactor drum is imperative.
The air lift type internal circulation biological reactor be a kind of be the bio-reactor that power makes the liquid thorough mixing and circulates at inside reactor with gas; Have advantages such as simple in structure, that the mass-and heat-transfer performance is good, energy consumption is low, the pair cell damage is little; In biochemical industry and field of waste water treatment widespread use, has potential as the denitrogenation dephosphorizing reactor drum.
Biological denitrification process generally is divided into two stages, i.e. aerobic nitrification stage and anaerobic denitrifying stage.In the nitrated stage, the NH in the waste water 4-N is NO by microbial transformation 2 -And NO 3 -In the denitrification stage, the NO in the waste water 2 -And NO 3 -By microbial transformation is N 2The biological phosphate-eliminating process generally is divided into two stages, and promptly aerobic excess is inhaled phosphorus stage and anaerobic phosphorus release stage.Reach the dephosphorization purpose through discharging rich phosphorus sludge.
Can know by wastewater biological denitrificaion dephosphorization principle; This process need is aerobic-hypoxic/anaerobic alternative environment; Through the appropriate design of air lift type internal circulation biological reactor endo conformation and the reasonable control of aeration intensity, effectively the speed of circulation and the oxyty of waste water in the conditioned reaction device make the reaction solution in the periphery upspout be in oxygen condition; The reaction solution that central authorities fall in the stream pipe is in anaerobic state, realizes the waste water synchronous denitrification dephosphorizing.
Summary of the invention
The purpose of the utility model is the deficiency that overcomes prior art, and a kind of air lift type internal recycle denitrification dephosphorizing bioreactor is provided.
Air lift type internal recycle denitrification dephosphorizing bioreactor is provided with distribute water and air district, internal recycle reaction zone and three-phase separation area from top to bottom successively; Bottom, distribute water and air district is provided with taper cloth water deflector; Taper cloth water deflector center is provided with water-in; One end of water-in stretches into taper cloth water deflector, and the other end of water-in stretches out reactor drum, and taper cloth water deflector bottom is provided with the annular space water outlet; Around taper cloth water deflector, be evenly equipped with the micropore aeration pipe locating device, aeration microtubule locating device top is provided with micropore aeration pipe; The distribute water and air district links to each other with the internal recycle reaction zone through flange; The internal recycle reaction zone falls the stream pipe by peripheral annular upspout and central authorities and forms; Peripheral annular upspout top is provided with doline up-flow thrust-augmenting nozzle; Central authorities fall stream pipe top and are provided with doline and fall the stream thrust-augmenting nozzle, and peripheral annular upspout bottom is provided with inlet mouth, and doline up-flow thrust-augmenting nozzle bottom is provided with mud discharging mouth; The internal recycle reaction zone falls the stream thrust-augmenting nozzle through doline up-flow thrust-augmenting nozzle and doline and three-phase separation area connects; Three-phase separation area is provided with annular gas-liquid separator tube, settling region from outside to inside in order; The settling region lower central is provided with the taper gas skirt; Taper gas skirt central upper portion is provided with the air outlet, and annular gas-liquid separator tube middle part is provided with the taper splash pan, and top, settling region is provided with overflow weir and water outlet.
Described micropore aeration pipe is positioned at peripheral annular upspout central lower, is higher than the annular space water outlet of taper cloth water deflector; It is long-pending than being 2.0 ~ 3.0: 1.0 ~ 2.0 that the stream tube section falls in described peripheral annular upspout and central authorities; Described annular gas-liquid separator tube is positioned at doline up-flow thrust-augmenting nozzle top, and annular gas-liquid separator tube is 3.0: 1.0 with the ratio of peripheral annular upspout sectional area; The cone angle δ of the taper splash pan that annular gas-liquid separator tube middle part is provided with is 45 °, and the awl height is 1/2 of an annular gas-liquid separator tube width; The cone angle beta of described taper gas skirt is 50 °, and it is 2.8 ~ 2.4: 1.3 ~ 1.6 that the long-pending ratio of stream tube section falls in the bottom of taper gas skirt, the bottom of settling region and central authorities: 1.0; Described overflow weir originates in top, settling region, links to each other with outer wall across the gas-liquid separation pipe; The cone angle of described taper cloth water deflector is 45 °, and the cone angle gamma that stream thrust-augmenting nozzle and doline up-flow thrust-augmenting nozzle fall in doline is 50 °
The utility model beneficial effect compared with prior art is: 1) reactor drum is made up of distribute water and air district, internal recycle reaction zone and three unit of three-phase separation area, the having complementary functions of adjacent cells, and compact construction, floor space is little; 2) the unique texture setting of micropore aeration pipe and annular gas-liquid separator tube makes reactor drum peripheral annular upspout be in oxygen condition, and central authorities fall the stream pipe and are in anaerobic state, can realize synchronous denitrification dephosphorizing; 3) the reasonable setting of stream thrust-augmenting nozzle and taper gas skirt falls in doline up-flow thrust-augmenting nozzle, doline, has reduced gas and current to the disturbance of reactor drum settling region, and three phase separation is effective; 4) annular upspout places central authorities to fall stream pipe periphery, has increased ratio aerobic and the anaerobic stages hydraulic detention time, helps improving the wastewater biological denitrificaion phosphor-removing effect.
Description of drawings
Fig. 1 is a kind of air lift type internal recycle denitrification dephosphorizing bioreactor section of structure;
Fig. 2 is a kind of air lift type internal recycle denitrification dephosphorizing bioreactor structure B-B sectional view;
Fig. 3 is a kind of air lift type internal recycle denitrification dephosphorizing bioreactor structure A-A sectional view;
Among the figure: distribute water and air district I, internal recycle water conservancy diversion district II, three-phase separation area II I; Water-in 1, annular space water outlet 2, taper cloth water deflector 3, micropore aeration pipe locating device 4, micropore aeration pipe 5, flange 6, inlet mouth 7, peripheral annular upspout 8, central authorities fall stream pipe 9, doline up-flow thrust-augmenting nozzle 10, doline and fall stream thrust-augmenting nozzle 11, taper splash pan 12, annular gas-liquid separator tube 13, taper gas skirt 14, settling region 15, air outlet 16, overflow weir 17, water outlet 18, mud discharging mouth 19.
Embodiment
Like Fig. 1,2, shown in 3; Air lift type internal recycle denitrification dephosphorizing bioreactor is provided with distribute water and air district I, internal recycle reaction zone II and three-phase separation area II I from top to bottom successively; I bottom, distribute water and air district is provided with taper cloth water deflector 3, and taper cloth water deflector 3 centers are provided with water-in 1, and an end of water-in 1 stretches into taper cloth water deflector 3; The other end of water-in 1 stretches out reactor drum; Taper cloth water deflector 3 bottoms are provided with annular space water outlet 2, around taper cloth water deflector 3, are evenly equipped with micropore aeration pipe locating device 4, and aeration microtubule locating device 4 tops are provided with micropore aeration pipe 5; Distribute water and air district I links to each other with internal recycle reaction zone II through flange 6; Internal recycle reaction zone II falls stream pipe 9 by peripheral annular upspout 8 with central authorities and forms; Peripheral annular upspout 8 tops are provided with doline up-flow thrust-augmenting nozzle 11; Central authorities fall stream pipe 9 tops and are provided with doline and fall stream thrust-augmenting nozzle 10, and peripheral annular upspout 8 bottoms are provided with inlet mouth 7, and doline up-flow thrust-augmenting nozzle 11 bottoms are provided with mud discharging mouth 19; Internal recycle reaction zone II falls stream thrust-augmenting nozzle 10 through doline up-flow thrust-augmenting nozzle 11 and doline and connects with three-phase separation area (III); Three-phase separation area II I is provided with annular gas-liquid separator tube 13, settling region (15) from outside to inside in order; Settling region 15 lower central are provided with taper gas skirt 14; Taper gas skirt 14 central upper portion are provided with air outlet 16, and annular gas-liquid separator tube 13 middle parts are provided with taper splash pan 12, and 15 tops, settling region are provided with overflow weir 17 and water outlet 18.
Described micropore aeration pipe 5 is positioned at peripheral annular upspout 8 central lower, is higher than the annular space water outlet 2 of taper cloth water deflector 3; It is 2.0 ~ 3.0: 1.0 ~ 2.0 that described peripheral annular upspout 8 falls stream pipe 9 sectional area ratios with central authorities; Described annular gas-liquid separator tube 13 is positioned at doline up-flow thrust-augmenting nozzle 11 tops, and annular gas-liquid separator tube 13 is 3.0: 1.0 with the ratio of peripheral annular upspout 8 sectional areas; The cone angle δ of the taper splash pan 12 that annular gas-liquid separator tube 13 middle parts are provided with is 45 °, and the awl height is 1/2 of annular gas-liquid separator tube 13 annular space width; The cone angle beta of described taper gas skirt 14 is 50 °, and the ratio that stream pipe 9 sectional areas fall in the bottom of the bottom of taper gas skirt 14, settling region 15 and central authorities is 2.8 ~ 2.4: 1.3 ~ 1.6: 1.0; Described overflow weir 17 originates in top, settling region, links to each other with outer wall across gas-liquid separation pipe 13; The cone angle of described taper cloth water deflector 3 is 45 °, and the cone angle gamma that stream thrust-augmenting nozzle 10 and doline up-flow thrust-augmenting nozzle 11 fall in doline is 50 °.
A kind of air lift type internal recycle denitrification dephosphorizing bioreactor can use PVC plate and steel plate to make; Its working process is following: nitrogenous phosphorus waste water gets into taper cloth water deflector 3 inside by water-in 1; After waste water and the collision of taper cloth water deflector 3 conical inboard walls, evenly get into reactor drum by its underpart annular space water outlet 2; Simultaneously, the air that gets into reactor drums by inlet mouth 7 through micropore aeration pipe 5 after with 3 water outlets of taper cloth water deflector and reactor drum in organism mix, and the promotion mixture rises mobile in peripheral annular upspout 8; Mixture rises in peripheral annular upspout 8 and flows; Can rise annular flow pipe 8 bottoms in periphery and form certain negative pressure; Impel central authorities to fall that mixture gets into peripheral annular upspout 8 through the outside surface water conservancy diversion of taper cloth water deflector 3 in the stream pipe 9, form internal recycle at inside reactor.
Behind the mixture process peripheral annular upspout 8; Get into annular gas-liquid separator tube 13 through doline up-flow thrust-augmenting nozzle 11; Gas-liquid-solid mixture is under the effect of taper splash pan 12, and most of gas upwards gets into atmosphere, and solidliquid mixture falls stream thrust-augmenting nozzle 10 parts through doline and gets into central authorities and fall stream pipe 9 and carry out internal recycle; Part gets into settling region 15 after solid-liquid separation, discharges reactor drum by overflow weir 17 and water outlet 18.Falling the gas that denitrification in the stream pipe 9 or Anammox produce in central authorities will be collected by taper gas skirt 14, get into atmosphere by air outlet 16.The residue biological sludge is discharged by mud discharging mouth 19.

Claims (7)

1. air lift type internal recycle denitrification dephosphorizing bioreactor; It is characterized in that: reactor drum is provided with distribute water and air district (I), internal recycle reaction zone (II) and three-phase separation area (III) from top to bottom successively; Bottom, distribute water and air district (I) is provided with taper cloth water deflector (3); Taper cloth water deflector (3) center is provided with water-in (1); One end of water-in (1) stretches into taper cloth water deflector (3), and the other end of water-in (1) stretches out reactor drum, and taper cloth water deflector (3) bottom is provided with annular space water outlet (2); Be evenly equipped with micropore aeration pipe locating device (4) all around along taper cloth water deflector (3), aeration microtubule locating device (4) top is provided with micropore aeration pipe (5); Distribute water and air district (I) links to each other with internal recycle reaction zone (II) through flange (6); Internal recycle reaction zone (II) falls stream pipe (9) by peripheral annular upspout (8) and central authorities and forms; Peripheral annular upspout (8) top is provided with doline up-flow thrust-augmenting nozzle (11); Central authorities fall stream pipe (9) top and are provided with doline and fall stream thrust-augmenting nozzle (10), and peripheral annular upspout (8) bottom is provided with inlet mouth (7), and doline up-flow thrust-augmenting nozzle (11) bottom is provided with mud discharging mouth (19); Internal recycle reaction zone (II) falls stream thrust-augmenting nozzle (10) through doline up-flow thrust-augmenting nozzle (11) and doline and connects with three-phase separation area (III); Three-phase separation area (III) is provided with annular gas-liquid separator tube (13), settling region (15) from outside to inside in order; Settling region (15) lower central is provided with taper gas skirt (14); Taper gas skirt (14) central upper portion is provided with air outlet (16); Annular gas-liquid separator tube (13) middle part is provided with taper splash pan (12), and top, settling region (15) is provided with overflow weir (17) and water outlet (18).
2. a kind of air lift type internal recycle denitrification dephosphorizing bioreactor according to claim 1; It is characterized in that: described micropore aeration pipe (5) is positioned at peripheral annular upspout (8) central lower, is higher than the annular space water outlet (2) of taper cloth water deflector (3).
3. a kind of air lift type internal recycle denitrification dephosphorizing bioreactor according to claim 1 is characterized in that: it is 2.0 ~ 3.0: 1.0 ~ 2.0 that described peripheral annular upspout (8) falls stream pipe (9) sectional area ratio with central authorities.
4. a kind of air lift type internal recycle denitrification dephosphorizing bioreactor according to claim 1; It is characterized in that: described annular gas-liquid separator tube (13) is positioned at doline up-flow thrust-augmenting nozzle (11) top, and annular gas-liquid separator tube (13) is 3.0: 1.0 with the ratio of peripheral annular upspout (8) sectional area; The cone angle δ of the taper splash pan (12) that annular gas-liquid separator tube (13) middle part is provided with is 45 °, and the awl height is 1/2 of annular gas-liquid separator tube (a 13) annular space width.
5. a kind of air lift type internal recycle denitrification dephosphorizing bioreactor according to claim 1; It is characterized in that: the cone angle beta of described taper gas skirt (14) is 50 °, and the ratio that stream pipe (9) sectional area falls in the bottom of the bottom of taper gas skirt (14), settling region (15) and central authorities is 2.8 ~ 2.4: 1.3 ~ 1.6: 1.0.
6. a kind of air lift type internal recycle denitrification dephosphorizing bioreactor according to claim 1, it is characterized in that: described overflow weir (17) originates in top, settling region, links to each other with outer wall across gas-liquid separation pipe (13).
7. a kind of air lift type internal recycle denitrification dephosphorizing bioreactor according to claim 1; It is characterized in that: the cone angle of described taper cloth water deflector (3) is 45 °, and the cone angle gamma that stream thrust-augmenting nozzle (10) and doline up-flow thrust-augmenting nozzle (11) fall in doline is 50 °.
CN2011202612216U 2011-07-22 2011-07-22 Air-lift type internal recycle de-nitrogenizing and phosphorus-removing bioreactor Withdrawn - After Issue CN202186922U (en)

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CN2011202612216U CN202186922U (en) 2011-07-22 2011-07-22 Air-lift type internal recycle de-nitrogenizing and phosphorus-removing bioreactor

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102249415A (en) * 2011-07-22 2011-11-23 浙江大学 Airlift internal circulation nitrogen and phosphorus removal bioreactor
CN104085986A (en) * 2014-07-07 2014-10-08 东华大学 Air-lifting type external-circulation vortex enhanced biological nitrogen-removal reactor
CN104761037A (en) * 2015-04-23 2015-07-08 苏州依斯倍环保装备科技有限公司 Phosphorous removal crystallizing reactor
CN114636694A (en) * 2022-05-17 2022-06-17 广东盈峰科技有限公司 Water environment on-line automatic detection device and detection method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102249415A (en) * 2011-07-22 2011-11-23 浙江大学 Airlift internal circulation nitrogen and phosphorus removal bioreactor
CN102249415B (en) * 2011-07-22 2012-10-03 浙江大学 Airlift internal circulation nitrogen and phosphorus removal bioreactor
CN104085986A (en) * 2014-07-07 2014-10-08 东华大学 Air-lifting type external-circulation vortex enhanced biological nitrogen-removal reactor
CN104085986B (en) * 2014-07-07 2016-03-30 东华大学 A kind of external loop airlift vortex enhanced biological nitrogen removal reactor
CN104761037A (en) * 2015-04-23 2015-07-08 苏州依斯倍环保装备科技有限公司 Phosphorous removal crystallizing reactor
CN114636694A (en) * 2022-05-17 2022-06-17 广东盈峰科技有限公司 Water environment on-line automatic detection device and detection method

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Granted publication date: 20120411

Effective date of abandoning: 20121003