CN208791283U - High-efficiency internal circulation anaerobic reactor - Google Patents

High-efficiency internal circulation anaerobic reactor Download PDF

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Publication number
CN208791283U
CN208791283U CN201820996407.8U CN201820996407U CN208791283U CN 208791283 U CN208791283 U CN 208791283U CN 201820996407 U CN201820996407 U CN 201820996407U CN 208791283 U CN208791283 U CN 208791283U
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Prior art keywords
reaction chamber
tank
internal circulation
anaerobic reactor
sludge
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CN201820996407.8U
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吴珏
周晓光
李英
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ZHEJIANG HUANYAO ENVIRONMENTAL CONSTRUCTION Co Ltd
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ZHEJIANG HUANYAO ENVIRONMENTAL CONSTRUCTION Co Ltd
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Abstract

The utility model relates to anaerobic reactor technical fields, disclose a kind of high-efficiency internal circulation anaerobic reactor, including tank body (14), successively include from the bottom to top in tank body (14) water inlet pipe (1), mixed zone (2), first reaction chamber (3), second reaction chamber (6) and settling zone (9), first reaction chamber (3) upper end is equipped with the first Marsh gas collector (4) and the first three phase separator (5), second reaction chamber (6) upper end is equipped with the second Marsh gas collector (7) and the second three phase separator (8), it further include internal circulation system, internal circulation system includes gas-liquid separator (11), biogas-lift pipe (12) and return pipe (13).The high-efficiency internal circulation anaerobic reactor ratio of height to diameter of the utility model is big, occupied area is saved, operating cost is low, and capacity of resisting impact load is strong, it realizes high load capacity to separate with sludge stream dephasing, has higher anti-interference energy to the impact of high load capacity, to water quality mutation, to toxic pollutant.

Description

High-efficiency internal circulation anaerobic reactor
Technical field
The utility model relates to anaerobic reactor technical fields, more particularly to high-efficiency internal circulation anaerobic reactor.
Background technique
High-efficiency internal circulation anaerobic reactor is third generation anaerobic reactor, by overlapping series connection above and below two UASB reactors At the biogas for using following first UASB reactor to generate realizes the interior circulation of lower part mixed liquor, obtain waste water as power The pretreatment that must strengthen, second UASB reactor above continue to post-process to waste water, can reach water outlet expected Treatment effect.High-efficiency internal circulation anaerobic reactor realizes SRT (sludge sludge age) by two layers of three phase separator, and > HRT (stop by waterpower Stay the time), so that entire reactor is obtained the anaerobic sludge of high concentration;And pass through the play of a large amount of biogas and interior circulation mud mixture Strong disturbance, comes into full contact with muddy water, obtains good mass transfer effect.
Utility model content
The utility model is directed to disadvantage existing in the prior art, provides a kind of high-efficiency internal circulation anaerobic reactor.
In order to solve the above-mentioned technical problem, the utility model is addressed by following technical proposals:
High-efficiency internal circulation anaerobic reactor, including tank body successively include water inlet pipe, mixed zone, the in tank body from the bottom to top One reaction chamber, the second reaction chamber and settling zone, the first reaction chamber upper end are equipped with the first Marsh gas collector and the first three phase separator, Sludge channel is equipped between first Marsh gas collector, first three phase separator one end is connected to sludge channel, the first three phase separation The device other end is connected to the second reaction chamber, and the second reaction chamber upper end is equipped with the second Marsh gas collector and the second three phase separator, the Sludge channel is equipped between two Marsh gas collectors, second three phase separator one end is connected to sludge channel, the second three phase separator The other end is connected to settling zone;It further include internal circulation system, internal circulation system includes gas-liquid separator, biogas-lift pipe and reflux Pipe, the first Marsh gas collector and the second Marsh gas collector pass through biogas-lift pipe respectively and are connected to gas-liquid separator, return pipe one End is connected to gas-liquid separator, and the return pipe other end protrudes into mixed zone.
Preferably, further including effluent weir, effluent weir is located at the top of settling zone in tank body.
Preferably, gas-liquid separator is located at outside tank body, gas-liquid separator is located above tank body.
Preferably, tank body is cylindrical shape, the height of tank body is 16~28m, and the ratio of height to diameter of tank body is 4~8.
Waste water is mixed to form mud mixture in mixed zone from water inlet water inlet tube, with sludge, and mud mixture enters first Reaction chamber, the first reaction chamber are high load region, and sludge concentration is higher, under the action of high concentration sludge, largely has in waste water Machine object, which is degraded, is converted into biogas, and mud mixture forms mixed liquor.
The violent disturbance of the upflow velocity and biogas of mixed liquor makes sludge in first reaction chamber be in expansion and fluidisation completely State strengthens the contact of muddy water surface, enhances muddy water mass transfer effect, sludge remains higher activity therefrom.With natural pond Gas yield increases, and part mud mixture is promoted to the gas-liquid separator at top by biogas-lift pipe, remaining all passes through the One three phase separator enters the second reaction chamber.
Second reaction chamber is low load region, and sludge concentration is lower, and most of organic matter is reacted first in waste water Interior is degraded, and therefore, biogas yield is less, and biogas imports gas-liquid separator by biogas-lift pipe, to the second reaction chamber Disturbance very little, this provides advantage for the stop of sludge.
The mud mixture of second reaction chamber is separated by solid-liquid separation in settling zone, and supernatant is drained by outlet pipe, precipitating Sludge returns to the second reaction chamber.
By biogas that biogas-lift pipe is promoted in gas-liquid separator with mud-water separation and export tank body, mud mixture is then The lowermost mixed zone is returned to along return pipe, is sufficiently mixed with the sludge of reactor bottom and water inlet, realizes mixed liquor In the intracorporal internal circulation of tank.
The utility model is due to using above technical scheme, with significant technical effect:
The high-efficiency internal circulation anaerobic reactor ratio of height to diameter of the utility model is big, saves occupied area, and operating cost is low, resists Impact load ability is strong, at the anaerobism applied to the high concentrated organic wastewater including alcohol, citric acid, starch and wastewater from sugar plant Reason, can obtain preferable economic and technical effect;High-efficiency internal circulation anaerobic reactor is by being arranged two dynamic processes up and down Different reaction chambers realizes high load capacity and separates with sludge stream dephasing;Under conditions of high COD volumetric loading, according to gas Principle is promoted, interior circulating sludge is realized under conditions of being not necessarily to external energy using biogas expansion work and flows back;It is followed due to interior The effect of ring, the reactor of the utility model have higher anti-interference to the impact of high load capacity, to water quality mutation, to toxic pollutant Ability.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
The toponym that each number designation is referred in attached drawing is as follows: 1-water inlet pipe, 2-mixed zones, the 3-the first reaction Room, the 4-the first Marsh gas collector, the 5-the first three phase separator, the 6-the second reaction chamber, the 7-the second Marsh gas collector, 8-the Two three phase separators, 9-settling zones, 10-effluent weirs, 11-gas-liquid separators, 12-biogas-lift pipes, 13-return pipes, 14-tank bodies, 15-sludge channels.
Specific embodiment
The utility model is described in further detail with embodiment with reference to the accompanying drawing.
Embodiment 1
High-efficiency internal circulation anaerobic reactor, as shown in Figure 1, include tank body 14, successively include from the bottom to top in tank body 14 into Water pipe 1, mixed zone 2, the first reaction chamber 3, the second reaction chamber 6 and settling zone 9,3 upper end of the first reaction chamber are received equipped with the first biogas Storage 4 and the first three phase separator 5 are equipped with sludge channel 15,5 one end of the first three phase separator between first Marsh gas collector 4 It is connected to sludge channel 15,5 other end of the first three phase separator is connected to the second reaction chamber 6, and 6 upper end of the second reaction chamber is equipped with the Two Marsh gas collectors 7 and the second three phase separator 8 are equipped with sludge channel 15, the second three phase separation between second Marsh gas collector 7 8 one end of device is connected to sludge channel 15, and 8 other end of the second three phase separator is connected to settling zone 9;It further include internal circulation system, Internal circulation system includes gas-liquid separator 11, biogas-lift pipe 12 and return pipe 13, and the first Marsh gas collector 4 and the second biogas are received Storage 7 is connected to by biogas-lift pipe 12 with gas-liquid separator 11 respectively, and 13 one end of return pipe is connected to gas-liquid separator 11, is returned 13 other end of flow tube protrudes into mixed zone 2.
It further include effluent weir 10, effluent weir 10 is located at the top of settling zone 9 in tank body 14.
Gas-liquid separator 11 is located at outside tank body 14, and gas-liquid separator 11 is located at 14 top of tank body.
Tank body is cylindrical shape, and the height of tank body is 24m, and the ratio of height to diameter of tank body is 6.
Waste water is intake from water inlet pipe 1, is mixed to form mud mixture in mixed zone 2 with sludge, and mud mixture enters the One reaction chamber 3, the first reaction chamber 3 are high load region, and sludge concentration is higher, under the action of high concentration sludge, big portion in waste water Divide organic matter to be degraded and be converted into biogas, mud mixture forms mixed liquor.
The violent disturbance of the upflow velocity and biogas of mixed liquor makes sludge in first reaction chamber 3 be in expansion and fluidisation completely State strengthens the contact of muddy water surface, enhances muddy water mass transfer effect, sludge remains higher activity therefrom.With natural pond Gas yield increases, and part mud mixture is promoted to the gas-liquid separator 11 at top by biogas-lift pipe 12, remaining is all logical It crosses the first three phase separator 5 and enters the second reaction chamber 6.
Second reaction chamber 6 is low load region, and sludge concentration is lower, and most of organic matter is reacted first in waste water It is degraded in room 3, therefore, biogas yield is less, and biogas imports gas-liquid separator 11 by biogas-lift pipe 12, anti-to second The disturbance very little of room 6 is answered, this provides advantage for the stop of sludge.
The mud mixture of second reaction chamber 6 is separated by solid-liquid separation in settling zone 9, and supernatant is drained by outlet pipe, precipitating Sludge return the second reaction chamber 6.
By biogas that biogas-lift pipe 12 is promoted in gas-liquid separator 11 with mud-water separation and export tank body 14, muddy water is mixed It closes object and then returns to the lowermost mixed zone 2 along return pipe 13, be sufficiently mixed with the sludge of reactor bottom and water inlet, realized Inside circulation of the mixed liquor in the tank body 14.
High-efficiency internal circulation anaerobic reactor has the advantage that when handling high concentrated organic wastewater
(1) high load capacity is separated with sludge stream dephasing
The high efficiency anaerobic reactor of the present embodiment is realized by the way that the reaction chamber that two dynamic processes are different up and down is arranged High load capacity is separated with sludge stream dephasing, has not only kept the high-biomass in reactor, but also enhance mass transport process, therefore volumetric loading is very It is high.
(2) sludge automatic back flow
Under conditions of high COD volumetric loading, according to gas lift principle, added using biogas expansion work without outer Interior circulating sludge reflux is realized under conditions of the energy.Sludge automatic back flow further increases biomass, extends sludge sludge age.
(3) classification processing is introduced, and assigns its new function
First three phase separator 5 separates biogas and water, and the second three phase separator 8 separates granule sludge and water.Due to big portion Divide biogas to be separated in the first three phase separator 5, there's almost no turbulent fluctuation in the second reaction chamber 6, therefore, the second three-phase Separator 8 can not be influenced by high gas flow rate, can efficiently separate granule sludge in water outlet.The muddy water of water inlet and circulating reflux It is mixed in mixed zone 2, makes to be diluted and adjusted into water, and form fine and close anaerobic expanded granular sludge bed in the first reaction chamber 3.This The reactor of embodiment removes the COD in most of water inlet by expanded bed, passes through the second reaction chamber 6 degradation rest COD and one A little hard-degraded substances improve effluent quality.Importantly, due to inner circulation of sludge, the water flow rate of climb of the second reaction chamber 6 (2~10m/h) is far below the upflow velocity (10~20m/h) of the first reaction chamber 3, and the first reaction chamber 3 generate on a small quantity Biogas creates the good environment of mud granule sedimentation, solves sludge under the conditions of high COD volumetric loading and be rushed out system Problem.In addition, the second reaction chamber 6 is the first reaction chamber 3, excessively expansion provides cushion space as caused by high influent load, Guarantee stable.
(4) ratio of height to diameter is big, and space occupied is small
The construction features of high-efficiency internal circulation anaerobic reactor are that have very big ratio of height to diameter, general reachable 4~8, this implementation The tank body 14 of the reactor of example is highly up to 16~28m.The soil of occupancy is low more than other technologies, especially suitable for old waste water Treatment plant's transformation and crowded pollution producer, which increase, builds waste water treatment system.
(5) operating cost is low, capacity of resisting impact load is strong
Since the reactor of the present embodiment has internal circulation system, the neutralization of raw water, the addition of nutritional medicine require to subtract Few, operating cost substantially reduces, and stability is preferable, operates and convenient for management, can substantially accomplish " de- people's operation ", fortune Row, the expense managed reduce.
Further, since the effect of interior circulation, the reactor of the present embodiment to the impact of high load capacity, to water quality mutation, to poison Contact scar has higher anti-interference ability.The processing performance such as table 1 of the anaerobic reactor of the present embodiment and existing anaerobic reactor It is shown:
The processing performance of the different anaerobic reactors of table 1
Embodiment 2
With embodiment 1, the difference is that the height of the tank body 14 of the present embodiment is 16m, the ratio of height to diameter of tank body 14 is 8。
Embodiment 3
With embodiment 1, the difference is that the height of the tank body 14 of the present embodiment is 28m, the ratio of height to diameter of tank body 14 is 8。
In short, the above is only the preferred embodiment of the present invention, it is all according to present utility model application the scope of the patents institute The equivalent changes and modifications of work should all belong to the covering scope of the utility model patent.

Claims (4)

1. high-efficiency internal circulation anaerobic reactor, including tank body (14), it is characterised in that: successively include from the bottom to top in tank body (14) Water inlet pipe (1), mixed zone (2), the first reaction chamber (3), the second reaction chamber (6) and settling zone (9), the first reaction chamber (3) upper end Equipped with the first Marsh gas collector (4) and the first three phase separator (5), sludge channel is equipped between the first Marsh gas collector (4) (15), the first three phase separator (5) one end is connected to sludge channel (15), and the first three phase separator (5) other end and second is instead Room (6) are answered to be connected to, the second reaction chamber (6) upper end is equipped with the second Marsh gas collector (7) and the second three phase separator (8), the second natural pond Sludge channel (15) are equipped between gas collector (7), the second three phase separator (8) one end is connected to sludge channel (15), and second Three phase separator (8) other end is connected to settling zone (9);It further include internal circulation system, internal circulation system includes gas-liquid separator (11), biogas-lift pipe (12) and return pipe (13), the first Marsh gas collector (4) and the second Marsh gas collector (7) pass through respectively Biogas-lift pipe (12) is connected to gas-liquid separator (11), and return pipe (13) one end is connected to gas-liquid separator (11), return pipe (13) other end protrudes into mixed zone (2).
2. high-efficiency internal circulation anaerobic reactor according to claim 1, it is characterised in that: further include effluent weir (10), out Mill weir (10) is located at the top of tank body (14) interior settling zone (9).
3. high-efficiency internal circulation anaerobic reactor according to claim 1, it is characterised in that: gas-liquid separator (11) is located at tank Outside, gas-liquid separator (11) is located above tank body (14) body (14).
4. high-efficiency internal circulation anaerobic reactor according to claim 1, it is characterised in that: tank body (14) is cylindrical shape, tank The height of body (14) is 16~28m, and the ratio of height to diameter of tank body (14) is 4~8.
CN201820996407.8U 2018-06-26 2018-06-26 High-efficiency internal circulation anaerobic reactor Active CN208791283U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820996407.8U CN208791283U (en) 2018-06-26 2018-06-26 High-efficiency internal circulation anaerobic reactor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820996407.8U CN208791283U (en) 2018-06-26 2018-06-26 High-efficiency internal circulation anaerobic reactor

Publications (1)

Publication Number Publication Date
CN208791283U true CN208791283U (en) 2019-04-26

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Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
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