CN205346945U - Air stripping coupling biological reaction device - Google Patents
Air stripping coupling biological reaction device Download PDFInfo
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- CN205346945U CN205346945U CN201520817263.1U CN201520817263U CN205346945U CN 205346945 U CN205346945 U CN 205346945U CN 201520817263 U CN201520817263 U CN 201520817263U CN 205346945 U CN205346945 U CN 205346945U
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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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Abstract
Air stripping coupling biological reaction device relates to sewage treatment technical field, and characterized in that includes reaction zone, aeration district and buffers, and aeration district upper portion is through many water distributors and reaction zone bottom UNICOM, aeration district bottom UNICOM bottom buffers, buffers upper portion and reaction zone upper portion UNICOM, membrane filter equipment is still installed in the district at the aeration. To the even aeration in aeration district, the air stripping rivers are distributed to the reaction zone bottom through the water distributor from the aeration district, then the upflow gets into buffers, get into aeration district bottom through the buffers bottoms, realize the air stripping circulation. Sewage drives at the air stripping circulatory flow and reacts repeatedly with the compound activated sludge layer that is arranged in the reaction zone lower part down, and the dissolved oxygen of distinguishing the acquisition at the aeration is at the reaction zone by biochemistry consumption, realized multistage good oxygen and oxygen -deficient relapse coupling, mud decrement, saved occupation of land, high gaseous oxygen utilization ratio, avoided the circulating pump energy consumption, reduced the aeration energy consumption.
Description
Technical field
This utility model relates to technical field of sewage, particularly to a kind of high efficiency sewage treatment facility and method being realized aerobic biochemical reaction, anoxia biochemical reaction, precipitation and membrane filtration coupling by air stripping circulation stream.
Technical background
Earth environment is caused catastrophic pollution in the activity of recent decades by the mankind.Human needs reduces within the time of coming few decades and clears up these pollutions and it needs to the efficiency of traditional wastewater treatment technology is greatly improved.
Traditional active sludge aerobic biochemical sewage treatment makes activated sludge suspend by aerations a large amount of in biochemistry pool, and provides dissolved oxygen for aerobic biochemical reaction simultaneously.The method dissolved oxygen concentration is more high, and biochemical efficiency is more good, but oxygen in water concentration is more high, and oxygen molecule mass-transfer efficiency from gaseous state to the dissolved is more low；Additionally the method needs the facility such as sedimentation tank and sludge reflux.
Aerobic biochemical reaction (O), anoxia biochemical reaction (A) and/or anaerobic biochemical reaction (A) can be combined into AO, A by circulating pump2The forms such as O or AOAO realize aerobic, anoxia and/or anaerobic biological process, but circulating pump power consumption is more serious.Activated sludge is raw at oxygen, circulation in anoxia and/or anaerobic biological environment, it is difficult to cultivate that special oxygen is raw, anoxia and/or anaerobe.
Batch-type biochemical reaction technology (SBR) include into water, aeration, sludge reflux or stirring, precipitate, the process such as water, spoil disposal of straining realizes aerobic biochemical reaction, anoxia biochemical reaction, precipitation process in one reaction pool, but this process can not continuously perform, it is impossible to obtain the reaction of repetitious aerobic biochemical and anoxia biochemical reaction.Activated sludge experience oxygen is raw, anoxia and/or anaerobic biological environment, it is difficult to cultivate that special oxygen is raw, anoxia and/or anaerobe.
The upward flow anaerobic reactor (UASB) with suspended sludge layer has significantly high biochemical efficiency, but is only limitted to anaerobic reaction so far, and suspended sludge is relatively easy to run off under current and biogas effect upper simultaneously.
Membrane filtration is combined with activated sludge sewage treatment and creates membrane bioreactor (MBR) technology.The aerobic MBR that aerobic activated sludge process is combined with membrane filtration is only had to obtain wide application up to now.Needing to provide aerobic biochemical aeration and film gas flushing aeration in this method, therefore power consumption is typically much higher than tradition aerobic activated sludge process simultaneously.In order to obtain denitrification, aerobic MBR system also needs to additional cycles pump, consumes energy even more serious.
It is low that this utility model to solve the logical oxygen utilization rate of traditional active sludge aerobic biochemical sewage treatment, and sedimentation tank separates with reaction tank thus takes up an area greatly, the technical problem that sludge yield is big；Solve SBR to run and can not run continuously, the problem such as the technology that sludge yield is big；Solve the MBR technology high efficiencies of nitrogen removal that consumes energy poor, the problem such as the technology that sludge yield is big.This utility model achieves the biochemical reaction device of aerobic biochemical reaction, anoxia biochemical reaction, precipitation, film gas flushing and filtration coupling, raising nitrification and denitrification effect, degraded residue biological sludge, saving operating cost and occupation of land.
Summary of the invention
In order to reach object above, this utility model air stripping coupled biological reaction unit (AirliftcoupledAnoxicOxicBioreactor, AL-AOB), air stripping coupled biological reaction unit or title air stripping coupled film biological reaction apparatus (AirliftcoupledAnoxicOxicMembraneBioreactor, AL-MBR) including film filter.
The first air stripping coupled biological reaction unit includes a reaction tank, has at least one reaction zone, at least one aeration zone and at least one relief area in this reaction tank, installs at least one aerator at aeration zone bottom even；Top, described aeration zone couples UNICOM bottom many water distributors and described reaction zone, the outlet bottom reaction zone of the described many water distributors connects multiple arms and is divided evenly at reactor bottom, bottom described aeration zone with relief area bottom UNICOM, top, described relief area and described reaction zone top UNICOM；Described air stripping coupled biological reaction unit includes oral siphon road, overflow water producing pipe road, discharge pipe, aerating pipelines, the water pump of necessity, blower fan, valve, effusion meter, Membrane cleaning system and automatic control system.
In order to realize in large-scale plant, water distribution bottom reaction zone is all even to be collected uniformly at top, reaction zone backwater, the second air stripping coupled biological reaction unit also includes at least one cloth tank being arranged on top, reaction zone, this cloth tank is divided into water distribution inside groove and water distribution water jacket, multiple partition is had in water distribution water jacket, at least one water distribution triangular-notch weir and water distribution inside groove UNICOM is all had in each partition, each bottom that cuts off is each through UNICOM bottom at least one water distributor and reaction zone, the outlet bottom reaction zone of the described many water distributors connects multiple arms and is divided evenly at reactor bottom, described water distribution inside groove and top, described aeration zone are by water distribution mouth UNICOM；The second air stripping coupled biological reaction unit also includes at least one return flume being arranged on top, reaction zone slightly below described cloth tank place, this return flume and top, described relief area, by water return outlet UNICOM, described return flume arrange multiple return flume triangular-notch weir for top, uniform collection reaction zone current.
The first or the second air stripping coupled biological reaction unit also include the submerged membrane defecator being arranged in described aeration zone, and described film filter is provided with membrane filtration water producing pipe road.
The sewage water treatment method using the first air stripping coupled biological reaction unit includes, supplied water by oral siphon road, by aerating pipelines and aerator to aeration zone uniform aeration, aeration zone water level rises under gas stripping, air stripping current are assigned to bottom reaction zone from aeration zone through many air stripping water distributors, current to upper reaches, enter relief area in reaction zone, then enter bottom buffered district and realize air stripping circulation bottom aeration zone；In reaction zone, activated sludge forms suspended sludge layer with under upward water flow effect under gravity, and sewage repeatedly reacts with activated sludge layer under air stripping circulation stream drives, and produces water through overflow water producing pipe road output.
The sewage water treatment method using the second air stripping coupled biological reaction unit is essentially identical with the sewage water treatment method using the first air stripping coupled biological reaction unit, something in common repeats no more, different places are in that air stripping current flow into water distribution inside groove from aeration zone by water distribution mouth, in multiple cloth tank triangular-notch weirs distribution to multiple partitions of water distribution water jacket, water in each partition is then through bottom water distribution pipe flow to reaction zone, current in reaction zone to upper reaches, return flume is entered through backwater triangular-notch weir, relief area is entered through water return outlet, then enter bottom buffered district and bottom aeration zone, realize air stripping circulation.
In the first or the second air stripping coupled biological reaction unit that include film filter, produce water through film water producing pipe road output.
Air stripping coupled biological reaction unit beneficial effect includes: achieve the coupling repeatedly of multi-stage aerobic biochemical reaction, anoxia biochemical reaction, nitrated biochemical reaction and denitrification biochemical reaction in same reaction zone；Comprise the suspended sludge system of composite reactive, biochemical efficiency is high, realize biochemical sludge decrement, significantly save floor space, avoid circulating pump energy consumption, improve gaseous oxygen utilization rate, realize suspension biochemical sludge layer with separating of membrane filtration and optimize membrane filtration environment, by film gas flushing aeration, biochemical oxygen supply aeration and air stripping cyclic aeration and three be one and lower further energy consumption, the cleaning on the spot of film more convenient.
Accompanying drawing explanation
The first air stripping coupled biological reaction unit generalized section of Fig. 1
Fig. 2 the second air stripping coupled biological reaction unit schematic top plan view
Fig. 3 the second air stripping coupled biological reaction unit AA generalized section
Fig. 4 the second air stripping coupled biological reaction unit BB generalized section
Fig. 5 the second air stripping coupled biological reaction unit CC generalized section
Fig. 6 the second air stripping coupled biological reaction unit DD generalized section
Fig. 7 the second air stripping coupled biological reaction unit EE generalized section
In figure: 1. reaction tank, 2. aeration zone, 3. relief area, 6. aerator, 7. film filter, 8. activated sludge layer, 10. reaction zone, 11. reaction zone water level, 21. aeration zone water level, 31. relief area water level, 40. cloth tank 40, 41. water distribution inside groove, 411. water distribution inside groove water level, 42. water distribution water jacket, 421. water distribution water jacket water level, 43. cloth tank triangular-notch weir, 45. water distributor, 46. water distribution mouth, 50. return flume, 51. return flume water level, 52. return flume triangular-notch weir, 56. water return outlet, 100. inlet pipeline, 200. overflow water producing pipe road, 300. discharge pipe, 600. air inlet pipeline, 700. film filter water producing pipe road；Figure have ignored the water pump of necessity, blower fan, valve, effusion meter, Membrane cleaning system and automatic control system for simplicity's sake.
Detailed description of the invention
Referring to Fig. 1, the first air stripping coupled biological reaction unit includes a reaction tank (1), in this reaction tank, there are at least one reaction zone (10), at least one aeration zone (2) and at least one relief area (3), at aeration zone (2) bottom even, at least one aerator (6) are installed；Described aeration zone (2) top couples many water distributors (45) and bottom, described reaction zone (10) UNICOM, the outlet in reaction zone (10) bottom of the described many water distributors (45) connects multiple arms and is divided evenly in reaction zone (10) bottom, bottom, described aeration zone (2) and bottom, relief area (3) UNICOM, described relief area (3) top and described reaction zone (10) top UNICOM；Described air stripping coupled biological reaction unit includes oral siphon road (100), overflow water producing pipe road (200), discharge pipe (300), aerating pipelines (600), the water pump of necessity, blower fan, valve, effusion meter, Membrane cleaning system and automatic control system.
The first air stripping coupled biological reaction unit also includes the submerged membrane defecator (7) being arranged in described aeration zone (2), and described film filter (7) is provided with membrane filtration water producing pipe road (700).
Referring to Fig. 2-Fig. 7, the second air stripping coupled biological reaction unit is essentially identical with the first air stripping coupled biological reaction unit, something in common repeats no more, different places are in that to include being arranged at least one cloth tank (40) on reaction zone (10) top, this cloth tank (40) is divided into water distribution inside groove (41) and water distribution water jacket (42), water distribution water jacket has multiple partition in (42), at least one water distribution triangular-notch weir (43) and water distribution inside groove (41) UNICOM is all had in each partition, each bottom that cuts off is each through UNICOM bottom at least one water distributor (45) and reaction zone, described water distribution inside groove (41) and described aeration zone (2) top are by water distribution mouth (46) UNICOM；The second air stripping coupled biological reaction unit also includes at least one return flume (50) being arranged on reaction zone (10) top slightly below described cloth tank (40) place, this return flume (50) and described relief area (3) top, by water return outlet (56) UNICOM, described return flume arrange multiple return flume triangular-notch weir (52) for uniform collection reaction zone (10) top current.
The second air stripping coupled biological reaction unit also includes the submerged membrane defecator (7) being arranged in described aeration zone (2), and described film filter (7) is provided with membrane filtration water producing pipe road (700).
The sewage water treatment method using the first air stripping coupled biological reaction unit includes, supplied water by oral siphon road (100), by aerating pipelines (600) and aerator (6) to aeration zone (2) uniform aeration, aeration zone water level (21) rises under gas stripping, air stripping current are assigned to bottom, reaction zone (10) from aeration zone (2) through many water distributors (45), current in reaction zone (10) to upper reaches, enter relief area (3), then buffered district (3) bottom enters bottom, aeration zone (2) and realizes air stripping circulation；In reaction zone (10), activated sludge forms suspended sludge layer (8) with under upward water flow effect under gravity, sewage repeatedly reacts with activated sludge layer (8) under air stripping circulation stream drives, and produces water through overflow water producing pipe road (200) output；
The sewage water treatment method using the second air stripping coupled biological reaction unit is essentially identical with the sewage water treatment method using the first air stripping coupled biological reaction unit, something in common repeats no more, different places are in that air stripping current flow into water distribution inside groove (41) from aeration zone (2) by water distribution mouth (46), in multiple cloth tank triangular-notch weir (43) distribution to multiple partitions of water distribution water jacket (42), water in each partition is then through water distributor (45) stream to bottom, reaction zone (10), current in reaction zone (10) to upper reaches, return flume (50) is entered through backwater triangular-notch weir (53), relief area (3) is entered through water return outlet (56), then buffered district (3) bottom enters bottom, aeration zone (2) and realizes air stripping circulation.
In the first or the second air stripping coupled biological reaction unit that include film filter (7), produce water through film water producing pipe road (700) output.Now, product water has a small amount of Aquatic product to go out to ensure through overflow water producing pipe road (200), and air stripping coupled biological reaction unit middle water level is stable, overflow water producing pipe road (200) can also be closed, realize air stripping coupled biological reaction unit middle water level stably by automatically controlling.Being reduced by aeration zone (2) water level when film cleans on the spot, now air stripping circulation is terminated.Biochemistry pool biochemical environment is not affected when therefore film being carried out chemical immersion.
The first air stripping coupled biological reaction unit is more suitable for relatively small-sized sewage treating system, and the second air stripping coupled biological reaction unit is more suitable for relatively large sewage disposal system.
The air stripping coupled film biological reaction apparatus that employing comprises film filter when requiring high to water quality treatment requirement height or treatment effeciency.
Air stripping coupled biological reaction unit beneficial effect includes:
The oxygen in water flowed out from aeration zone (2) is higher, therefore higher at suspended sludge layer (8) bottom dissolved oxygen, mainly aerobic environment；Constantly occurring aerobic biochemical to react when water flows up, dissolved oxygen is gradually lowered, and is mainly anaerobic environment on suspended sludge layer (8) top；Therefore, in same reaction zone (10), it is simultaneously achieved the coupling on the spot of aerobic biochemical reaction, anoxia biochemical reaction, nitrated biochemical reaction and denitrification biochemical reaction；
Owing to air stripping circulating water flow is far longer than sewage load, sewage circulates at air stripping and repeatedly contacts with suspended sludge layer (8) under stream effect, it is achieved that the coupling repeatedly of multi-stage aerobic biochemical reaction, anoxia biochemical reaction, nitrated biochemical reaction and denitrification biochemical reaction；
Suspended sludge layer (8) is complex enzyme/activated sludge system, and not only biochemical efficiency is high, and have effectively achieved the biochemical degradation on the spot of residual active sludge, it is achieved biochemical sludge decrement；
Owing to aerobic biochemical reaction, anoxia biochemical reaction are incorporated in same reaction zone (10) with precipitation process by this air stripping coupled biological reaction unit, in reaction zone (10), formed suspended sludge layer (8) of stable high concentration by precipitation；Therefore floor space is significantly saved；
Owing to this air stripping coupled biological reaction unit eliminates tradition AO, A2All kinds of circulating pumps in O or Multilevel A/O Technology, therefore energy consumption reduces；
It is relatively low that water is back to dissolved oxygen concentration during bottom, aeration zone (2), and the mass transfer force that oxygen dissolves is higher, and therefore the utilization rate of gaseous oxygen is improved, and reduces aeration energy consumption further；
In the air stripping coupled biological reaction unit comprising film filter, the float that reaction zone can not be precipitated is retained by membrane filtration, and circulates return reaction zone (10) under stream effect at air stripping, until flco is grown up and sinks；In film device ambient water, concentration of suspension is relatively low, optimizes membrane filtration environment；
In the air stripping coupled biological reaction unit comprising film filter, owing to being one by film gas flushing aeration, biochemical oxygen supply aeration and air stripping cyclic aeration and three, therefore relatively substantially reduce with tradition MBR technology energy consumption；
In the air stripping coupled biological reaction unit of device film filter, the cleaning on the spot of film is more convenient.
Claims (3)
1. an air stripping coupled biological reaction unit, it is characterized in that including a reaction tank (1), in this reaction tank, there are at least one reaction zone (10), at least one aeration zone (2) and at least one relief area (3), at aeration zone (2) bottom even, at least one aerator (6) are installed；Described aeration zone (2) top couples many water distributors (45) and bottom, described reaction zone (10) UNICOM, the outlet in reaction zone (10) bottom of the described many water distributors (45) connects multiple arms and is divided evenly in reaction zone (10) bottom, bottom, described aeration zone (2) and bottom, relief area (3) UNICOM, described relief area (3) top and described reaction zone (10) top UNICOM；Described air stripping coupled biological reaction unit includes oral siphon road (100), overflow water producing pipe road (200), discharge pipe (300), aerating pipelines (600), the water pump of necessity, blower fan, valve, effusion meter, Membrane cleaning system and automatic control system.
2. air stripping coupled biological reaction unit according to claim 1, characterized by further comprising at least one cloth tank (40) being arranged on reaction zone (10) top, this cloth tank (40) is divided into water distribution inside groove (41) and water distribution water jacket (42), water distribution water jacket has multiple partition in (42), at least one water distribution triangular-notch weir (43) and water distribution inside groove (41) UNICOM is all had in each partition, each cut off bottom by least one described water distributor (45) and with reaction zone (10) bottom UNICOM, the outlet in reaction zone (10) bottom of the described many water distributors (45) connects multiple arms and is divided evenly in reaction zone (10) bottom, described water distribution inside groove (41) and described aeration zone (2) top are by water distribution mouth (46) UNICOM；It is further characterized in that at least one return flume (50) including being arranged on reaction zone (10) top slightly below described cloth tank (40) place, this return flume (50) and described relief area (3) top, by water return outlet (56) UNICOM, described return flume arrange multiple return flume triangular-notch weir (52) for uniform collection reaction zone (10) top current.
3. air stripping coupled biological reaction unit according to claim 1 and 2, it is characterized in that the film filter (7) including being arranged in described aeration zone (2), described film filter (7) is provided with membrane filtration water producing pipe road (700).
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| CN201520817263.1U CN205346945U (en) | 2015-10-22 | 2015-10-22 | Air stripping coupling biological reaction device |
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| CN201520817263.1U CN205346945U (en) | 2015-10-22 | 2015-10-22 | Air stripping coupling biological reaction device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174439A (en) * | 2015-10-22 | 2015-12-23 | 北京格兰特膜分离设备有限公司 | Air stripping coupled bioreactor and sewage treatment method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174439A (en) * | 2015-10-22 | 2015-12-23 | 北京格兰特膜分离设备有限公司 | Air stripping coupled bioreactor and sewage treatment method |
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Address after: 2 Xibinhe Road, Miyun County, Beijing, 101312 Patentee after: Huazi Grant Environmental Protection Technology (Beijing) Co.,Ltd. Address before: 2 Xibinhe Road, Miyun County, Beijing, 101312 Patentee before: BEIJING GRANT MEMBRANE SEPARATION EQUIPMENT Co.,Ltd. |