CN212770070U - Synthesize sewage treatment with inside and outside circulation anaerobic reactor - Google Patents
Synthesize sewage treatment with inside and outside circulation anaerobic reactor Download PDFInfo
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- CN212770070U CN212770070U CN202020737462.2U CN202020737462U CN212770070U CN 212770070 U CN212770070 U CN 212770070U CN 202020737462 U CN202020737462 U CN 202020737462U CN 212770070 U CN212770070 U CN 212770070U
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Abstract
The utility model discloses an internal and external circulation anaerobic reactor for comprehensive sewage treatment, which relates to the technical field of sewage treatment.A sewage enters a main body in a sewage collecting tank through a sewage lifting pump, and simultaneously, the sewage spirally rises in the main body in a tangent line through the arrangement of an annular water distributor, and the spirally-rising sewage can fully stir sludge, so that the sludge is completely in an expansion state and can be fully and thoroughly contacted with organic matters in the sewage; the circulating pump makes sewage backward flow form the extrinsic cycle, and when sewage spout and enter into the choke from the nozzle, because the velocity of flow is high, form the negative pressure in whole injection apparatus, inhale a large amount of anaerobism mud to injection apparatus in, thereby further make mud and sewage thoroughly mix, and carry out the inner loop in the inside of body, thereby under the combined action of extrinsic cycle and inner loop, make fully contact between mud and the sewage, improved whole anaerobic reactor's treatment effeciency.
Description
Technical Field
The utility model relates to a sewage treatment technical field especially relates to an synthesize inside and outside circulation anaerobic reactor for sewage treatment.
Background
The anaerobic reactor is a high-efficiency waste water treatment device, and utilizes the self-metabolic process of anaerobic microorganisms to digest organic matters in waste water, thereby achieving the purpose of treating the waste water. Because of the characteristics of energy conservation, less excess sludge, capability of treating high-concentration organic wastewater and the like, the anaerobic treatment technology is always a hotspot of research in the field of sewage treatment. In the field of high-concentration organic wastewater treatment such as landfill leachate and the like, an upflow anaerobic reactor, a sludge expanded bed reactor, an internal circulation anaerobic reactor and the like are mostly adopted. For the above anaerobic reactor, ensuring sufficient contact of the sludge with the wastewater is the key to improve the anaerobic treatment efficiency.
Chinese patent publication No. CN205187983U discloses an EGSB anaerobic reactor, in which a multi-stage three-phase separator is added to an EGSB reactor, so that sewage can be buffered by the EGSB reactor even if the concentration is suddenly increased; after multi-stage three-phase separation, solid particles in the sewage can achieve a better interception effect and are beneficial to the subsequent treatment of the sewage; the main body shape design of the EGSB reactor also relieves the short flow phenomenon to some extent, reduces the local still water phenomenon in the sewage treatment process, ensures that the precipitation effect is better and is beneficial to the sewage treatment effect.
However, after the anaerobic reactor is operated for a long time, the phenomenon of sludge deposition occurs at the bottom, so that the sludge and the sewage cannot be in full contact, and the treatment efficiency of the whole anaerobic reactor is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the bottom of the anaerobic reactor can generate the phenomenon of sludge deposition after long-term operation, thereby leading to insufficient contact between sludge and sewage and leading to lower treatment efficiency of the whole anaerobic reactor.
In order to solve the technical problem, the utility model provides an internal and external circulation anaerobic reactor for comprehensive sewage treatment, which comprises a main body, a water outlet pipe and a water seal, wherein a lower three-phase separator and an upper three-phase separator are respectively arranged inside the main body from bottom to top, a sewage collecting tank is connected to the lower side of the main body, a sewage lifting pump is connected between the sewage collecting tank and the main body, an annular water distributor for spirally lifting sewage is also connected to the lower side of the main body, and the joint of the annular water distributor on the main body and the joint of the sewage lifting pump on the main body are positioned at the same height; the main body is also provided with an outer circulating device for sewage backflow, the outer circulating device comprises a circulating pump for absorbing sewage and an injection device for spraying the sewage, the water inlet end of the circulating pump is connected between the lower three-phase separator and the upper three-phase separator of the side wall of the main body, the water outlet end of the circulating pump is connected to the middle position of the lower end of the main body, the injection device comprises a nozzle and a throat pipe which are connected with each other from bottom to top, and the nozzle is arranged at the middle position of the lower end of the main body and is connected with the water outlet end of the circulating.
The technical effects are as follows: sewage enters the main body in the sewage collecting tank through the sewage lifting pump, and simultaneously, the sewage spirally rises in the main body in a tangent line manner through the arrangement of the annular water distributor, and the spirally-rising sewage can fully stir the sludge, so that the sludge is fully in an expanded state and can be fully and thoroughly contacted with organic matters in the sewage; meanwhile, the circulating pump sucks the sewage that rises to the body upside once more, and spout from the nozzle, the extrinsic cycle of sewage has been realized, sewage is spout from the nozzle and when entering into the choke, because the velocity of flow is high, form the negative pressure in whole injection apparatus, suck a large amount of anaerobism mud to the injection apparatus in, thereby further make mud and sewage thoroughly mix, and carry out the inner loop in the inside of body, thereby under the combined action of extrinsic cycle and inner loop, make anaerobic reactor after long-term operation, sludge deposition can not appear in the bottom, can fully contact between mud and the sewage, the treatment effeciency of whole anaerobic reactor has been improved.
The utility model discloses the technical scheme who further injects is: the injection device further comprises a mixing chamber coaxially arranged around the nozzle, one end of the mixing chamber, which is far away from the nozzle, is communicated with the throat pipe, and the mixing chamber and the bottom end of the main body are arranged at intervals.
Further, the internal shape of the throat pipe is set to be a truncated cone shape with the cross section area gradually reduced from top to bottom.
The internal and external circulation anaerobic reactor for comprehensive sewage treatment is characterized in that the lower three-phase separator and the upper three-phase separator are both provided with a biogas collecting pipe, and the other end of the biogas collecting pipe is connected to a water seal.
The internal and external circulation anaerobic reactor for comprehensive sewage treatment is characterized in that a water outlet table communicated with a water outlet pipe is arranged at the upper end inside the body, a water outlet is coaxially formed in the water outlet table, and a water outlet groove is formed between the water outlet table and the inner wall of the body.
The internal and external circulation anaerobic reactor for comprehensive sewage treatment is characterized in that the height of the water outlet groove is set to be lower than that of the water outlet.
The utility model has the advantages that:
(1) the utility model discloses, the setting of mixing chamber makes self be linked together with the body inside and choke simultaneously, also makes to be linked together between nozzle and the choke, thereby when making the sewage of inner loop spout from the nozzle, can be more convenient for form the negative pressure in the mixing chamber, thereby inhales the anaerobism mud of body bottom into the mixing chamber, thereby has realized the inner loop of mud, makes mud and sewage thoroughly mix, can be abundant carry out oxidation treatment to the oxide in the sewage;
(2) the utility model discloses, the setting of the shape of choke makes sewage spout from the nozzle, and when outwards spouting from the choke again, sewage can be radially outwards spout along the shape direction of choke to make sewage can disperse more in the body, can not lead to insufficient contact with mud because too concentrated, thereby has strengthened the oxidation efficiency of mud to organic matter in the sewage from another aspect;
(3) the utility model discloses, the setting of play water platform for when sewage rises to a water platform height, sewage enters into a water bench from the apopore, and enter into the basin afterwards, the part does not have sedimentary mud to the sewage in this in-process water platform blocks, thereby the sludge amount of sewage in the basin that has entered into has significantly reduced, thereby the discharge of mud has been reduced, make more mud can be by cyclic utilization, whole anaerobic reactor's practicality has been improved on the one hand, on the other hand can improve its work efficiency.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Wherein: 1. a main body; 11. a water outlet pipe; 12. water sealing; 2. a lower three-phase separator; 3. an upper three-phase separator; 4. a sewage collecting tank; 41. a sewage lift pump; 5. an annular water distributor; 6. an external circulation device; 61. a circulation pump; 62. an injection device; 621. a nozzle; 622. a throat; 623. a mixing chamber; 7. a biogas collecting pipe; 8. a water outlet platform; 81. a water outlet; 82. a water outlet groove.
Detailed Description
The internal and external circulation anaerobic reactor for comprehensive sewage treatment provided by the embodiment has a structure shown in fig. 1, and comprises a main body 1, wherein the upper end of the main body 1 is provided with a water seal 12, the upper side of the side surface of the main body 1 is provided with a water outlet pipe 11, and the water outlet pipe 11 is used for discharging sewage treated in the main body 1; a lower three-phase separator 2 and an upper three-phase separator 3 are respectively arranged in the main body 1, the upper three-phase separator 3 is arranged above the lower three-phase separator 2, biogas collecting pipes 7 are respectively arranged on the lower three-phase separator 2 and the upper three-phase separator 3, and the other ends of the biogas collecting pipes 7 are connected to a water seal 12; the upper end in the body still is provided with water outlet platform 8, has seted up delivery port 81 on the water outlet platform 8 coaxially, is equipped with out the basin 82 between the inner wall of water outlet platform 8 and body, and the height of going out basin 82 sets up to be less than delivery port 81, goes out basin 82 and sets up to be linked together with outlet pipe 11.
The lower side of the main body 1 is connected with a sewage collecting tank 4, a sewage lifting pump 41 is connected between the sewage collecting tank 4 and the main body 1, the lower side of the main body 1 is also connected with an annular water distributor 5 for enabling sewage to spirally rise, and the joint of the annular water distributor 5 on the main body 1 and the joint of the sewage lifting pump 41 on the main body 1 are positioned at the same height.
Still be provided with outer circulating device 6 on main part 1, outer circulating device 6 is used for the sewage backward flow, and outer circulating device 6 includes circulating pump 61 and injection apparatus 62 that communicate each other, and the end of intaking of circulating pump 61 is connected between lower three-phase separator 2 and the last three-phase separator 3 of main part 1 lateral wall, and the play water end of circulating pump 61 is connected in the intermediate position department of main part 1 lower extreme.
The injection device 62 comprises a nozzle 621, a throat 622 and a mixing chamber 623, the nozzle 621 is coaxially arranged at the lower end of the interior of the main body 1, and the nozzle 621 is communicated with the water outlet end of the circulating pump 61; the throat 622 is disposed on the upper side of the nozzle 621, and the throat 622 and the nozzle 621 are communicated with each other, the inner shape of the throat 622 is a truncated cone shape, and the cross-sectional area of the truncated cone shape is gradually reduced from top to bottom; the mixing chamber 623 is coaxially arranged around the nozzle 621, one end of the mixing chamber 623, which is far away from the nozzle 621, is arranged to be communicated with the throat 622, and the other end is arranged at an interval with the bottom end of the main body 1.
Sewage enters the main body 1 through the sewage lift pump 41 in the sewage collecting tank 4, and simultaneously, the sewage is enabled to be in tangential spiral rising in the body through the arrangement of the annular water distributor 5, the spiral rising sewage can be used for fully stirring the sludge, so that the sludge is completely in an expansion state, and the sludge can be in full and thorough contact with organic matters in the sewage.
Meanwhile, the circulating pump 61 sucks in the sewage which is raised to the upper side of the body again and sprays the sewage from the nozzle 621, so that the external circulation of the sewage is realized, when the sewage is sprayed from the nozzle 621 and enters the throat 622, negative pressure is formed in the mixing chamber 623 due to high flow velocity, so that a large amount of anaerobic sludge at the bottom of the body is sucked into the mixing chamber 623, the internal circulation of the sludge is realized, the sludge and the sewage are thoroughly mixed, and the oxidation treatment of oxides in the sewage can be fully performed.
Anaerobic bacteria in the anaerobic reactor exist in a granular sludge form, the granular sludge in the anaerobic reactor has good settleability, a large amount of methane gas can be generated, the effluent surface is in a boiling fluidized state under the action of airflow, and the sludge (cured sludge or flocs) with poor settleability can be discharged out of the reactor body, so that the whole operation process is efficient and stable.
Whole anaerobic reactor has adopted two kinds of circulation modes of waste water spiral shell screwing in of water back and inside mud backward flow, the problem of bottom sludge deposit after having solved the reactor long-term operation has also made mud and sewage thoroughly mix in addition, make the mixed liquid reach the fluidization state, the COD clearance reaches up to 90%, simultaneously under the combination of inside and outside circulation system, the reactor internal rising velocity of flow that makes increases, reactor dwell time shortens greatly, the reactor volume has been reduced, volume load has been improved, whole anaerobic reactor's treatment effeciency has been improved.
In addition to the above embodiments, the present invention may have other embodiments; all the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.
Claims (6)
1. The utility model provides a synthesize sewage treatment with inside and outside circulation anaerobic reactor, includes main part (1), outlet pipe (11) and water seal (12), the inside of main part (1) is by supreme three-phase separator (2) and last three-phase separator (3) down of being provided with respectively down, its characterized in that: the sewage treatment device is characterized in that a sewage collecting tank (4) is connected to the lower side of the main body (1), a sewage lifting pump (41) is connected between the sewage collecting tank (4) and the main body (1), an annular water distributor (5) for enabling sewage to spirally rise is further connected to the lower side of the main body (1), and the joint of the annular water distributor (5) on the main body (1) and the joint of the sewage lifting pump (41) on the main body (1) are located at the same height; still be provided with outer circulating device (6) that is used for the sewage backward flow on main part (1), outer circulating device (6) are including circulating pump (61) that is used for absorbing sewage and injection apparatus (62) that is used for blowout sewage, the end of intaking of circulating pump (61) is connected between lower three-phase separator (2) and last three-phase separator (3) of main part (1) lateral wall, the play water end of circulating pump (61) is connected in main part (1) lower extreme intermediate position department, injection apparatus (62) are including nozzle (621) and choke (622) by lower supreme interconnect, nozzle (621) set up in main part (1) lower extreme intermediate position department and be connected with the play water end of circulating pump (61).
2. The integrated internal and external circulation anaerobic reactor for sewage treatment according to claim 1, characterized in that: the injection device (62) further comprises a mixing chamber (623) coaxially arranged around the nozzle (621), one end of the mixing chamber (623) departing from the nozzle (621) is communicated with the throat pipe (622), and the mixing chamber (623) and the bottom end of the main body (1) are arranged at intervals.
3. The integrated internal and external circulation anaerobic reactor for sewage treatment according to claim 2, characterized in that: the inner shape of the throat pipe (622) is set to be a circular truncated cone shape with the cross section area gradually reduced from top to bottom.
4. The integrated internal and external circulation anaerobic reactor for sewage treatment according to claim 1, characterized in that: the lower three-phase separator (2) and the upper three-phase separator (3) are both provided with a biogas collecting pipe (7), and the other end of the biogas collecting pipe (7) is connected to a water seal (12).
5. The integrated internal and external circulation anaerobic reactor for sewage treatment according to claim 2, characterized in that: the water outlet device is characterized in that a water outlet platform (8) communicated with the water outlet pipe (11) is arranged at the upper end inside the main body (1), a water outlet (81) is coaxially formed in the water outlet platform (8), and a water outlet groove (82) is formed between the water outlet platform (8) and the inner wall of the body.
6. The integrated internal and external circulation anaerobic reactor for sewage treatment according to claim 5, characterized in that: the height of the water outlet groove (82) is set to be lower than that of the water outlet (81).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020737462.2U CN212770070U (en) | 2020-05-07 | 2020-05-07 | Synthesize sewage treatment with inside and outside circulation anaerobic reactor |
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| CN202020737462.2U CN212770070U (en) | 2020-05-07 | 2020-05-07 | Synthesize sewage treatment with inside and outside circulation anaerobic reactor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114133031A (en) * | 2021-12-30 | 2022-03-04 | 河北万生环保工程有限公司 | High-efficiency upflow anaerobic reactor |
| CN115057530A (en) * | 2022-07-19 | 2022-09-16 | 华夏碧水环保科技股份有限公司 | Anaerobic reactor without three-phase separator |
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2020
- 2020-05-07 CN CN202020737462.2U patent/CN212770070U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114133031A (en) * | 2021-12-30 | 2022-03-04 | 河北万生环保工程有限公司 | High-efficiency upflow anaerobic reactor |
| CN114133031B (en) * | 2021-12-30 | 2023-09-19 | 河北万生环保工程有限公司 | High-efficiency upflow anaerobic reactor |
| CN115057530A (en) * | 2022-07-19 | 2022-09-16 | 华夏碧水环保科技股份有限公司 | Anaerobic reactor without three-phase separator |
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