CN213950922U - Continuous flowing water treatment reaction device for efficiently culturing aerobic granular sludge - Google Patents
Continuous flowing water treatment reaction device for efficiently culturing aerobic granular sludge Download PDFInfo
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- CN213950922U CN213950922U CN202023062349.8U CN202023062349U CN213950922U CN 213950922 U CN213950922 U CN 213950922U CN 202023062349 U CN202023062349 U CN 202023062349U CN 213950922 U CN213950922 U CN 213950922U
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Abstract
The utility model relates to a continuous flowing water treatment reaction device for efficiently culturing aerobic granular sludge, which is sequentially provided with an anaerobic tank, an anoxic tank, an aerobic granular sludge selection tank and a secondary sedimentation tank from front to back; the anaerobic tank and the anoxic tank are both provided with stirrers, and the bottom of the aerobic tank is provided with a plurality of aeration heads and air compressors; the bottom of the aerobic granular sludge selection tank is provided with a three-way switch and an aerobic granular sludge return pipe, and an aerobic granular sludge return pump is communicated with the anaerobic tank in front; the bottom of the secondary sedimentation tank is provided with a secondary sedimentation tank three-way switch, an external reflux pump and a sludge reflux pipe which are communicated with the front aerobic tank; the anaerobic tank bottom is equipped with the water inlet, and first delivery port on anaerobic tank upper portion is established, and the oxygen deficiency bottom of the pool portion is equipped with the opening, and good oxygen pond upper portion is equipped with the delivery port on the second to be equipped with interior backwash pump and interior back flow and the last mouthful intercommunication in oxygen deficiency pond. The utility model is suitable for a purification treatment of various waters can high-efficiently cultivate and utilize good oxygen granule mud, and water treatment's is effectual, and the sludge volume is few, and the running cost is low.
Description
Technical Field
The utility model belongs to a water purification treatment device, in particular to a continuous flowing water treatment reaction device for efficiently culturing aerobic granular sludge, which is applicable to sewage treatment and various water bodies needing purification treatment.
Background
The aerobic granular sludge generally refers to biological aggregates generated by the self-flocculation and fixation of microorganisms under proper operating conditions in the water treatment process. Because the aerobic granular sludge has a certain grain size, the mass transfer of dissolved oxygen is limited, and anaerobic, anoxic and aerobic environments required by microorganisms are formed in single granules, thereby realizing the function of synchronous nitrification and denitrification or denitrification and dephosphorization. Compared with the traditional activated sludge method, the aerobic granular sludge technology has the advantages of good sedimentation performance, strong impact load resistance, low energy consumption, low medicine consumption and the like, thereby being widely researched and approved at home and abroad.
The aerobic granular sludge process needs to be operated under quite strict conditions and is influenced by various factors such as hydraulic shear force, settling time, sludge load, external environment of temperature and pH value, inoculated sludge and the like, most technicians select a sequencing batch reactor to culture aerobic granular sludge at present, and the cases of culturing granular sludge by using a continuous flow reactor are few. The granular sludge is cultured by utilizing the continuous flow reactor, so that the water treatment process is promising.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a continuous flowing water treatment reaction unit of good oxygen granule mud is cultivateed to high efficiency, the device adopts the continuous flowing water treatment facility of baffling mode, set up good oxygen granule screening return flow structure of good oxygen granule mud selection pond, according to reasonable height-diameter ratio, the anaerobism pond of preferentially flowing back to the granule type mud that weighs, make granule mud obtain the advantage and increase, and two heavy ponds are arranged into to light in weight's mud, thereby granular sludge and ordinary sludge's separating action has been played, granular sludge's loss has been avoided, have the high efficiency and cultivate and utilize good oxygen granule mud to carry out water treatment's structure, obviously improved water treatment's effect, the sludge amount has been reduced, the running cost of water treatment has been reduced.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a continuous flowing water treatment reaction device for efficiently culturing aerobic granular sludge is characterized in that an anaerobic tank, an anoxic tank, an aerobic granular sludge selection tank and a secondary sedimentation tank are sequentially arranged from front to back; the anaerobic tank and the anoxic tank are both provided with stirrers, the bottom of the aerobic tank is provided with a plurality of aeration heads, and the aeration heads are communicated with an air compressor for air supply through air pipes; the aerobic granular sludge selection pool is internally provided with a partition plate from the pool mouth to the upper part of the pool bottom, a space is reserved between the bottom end of the partition plate and the pool bottom, the upper space of the pool is divided into a front part and a rear part, the pool bottom is arranged into a funnel shape, the funnel-shaped pool bottom is provided with a water outlet and a water outlet pipe, the aerobic granular sludge three-way switch, the aerobic granular sludge reflux pump and the aerobic granular sludge reflux pump which are arranged are communicated with the anaerobic pool in front, and part of aerobic granular sludge is discharged through the aerobic granular sludge three-way switch, the aerobic granular sludge discharge pump and the aerobic granular sludge discharge pipe; the bottom of the secondary sedimentation tank is funnel-shaped, the bottom of the secondary sedimentation tank is provided with a sludge discharge pipe and a secondary sedimentation tank three-way switch, the secondary sedimentation tank three-way switch, an outer reflux pump and a sludge reflux pipe are communicated with the front aerobic tank, and the secondary sedimentation tank three-way switch, the sludge discharge pump and the sludge discharge pipe are communicated with a sludge discharge port; the bottom of the anaerobic tank is provided with a water inlet, sewage to be treated enters the anaerobic tank from the bottom of the anaerobic tank through a water inlet pump, a water inlet pipe and the water inlet, and the anaerobic tank is communicated with the anoxic tank through a first upper water outlet at the upper part of the anaerobic tank; the anoxic tank is communicated with the bottom of the aerobic tank through an opening at the bottom, the aerobic tank is communicated with the upper opening of the aerobic granular sludge selection tank through a second upper water outlet at the upper part, and sewage rich in aerobic granular sludge in the aerobic granular sludge selection tank passes through the tank bottom from the lower part of the bottom of the partition plate in the tank, then rises into the latter half tank, and is communicated with the secondary sedimentation tank through a third upper water outlet and a water outlet pipe at the upper edge of the tank wall; the upper opening of the secondary sedimentation tank is provided with a drain pipe; the aerobic tank is communicated with the front end of the anoxic tank through an internal reflux pump and an internal reflux pipe.
The utility model discloses further implementation and the perfect technical scheme of structure are:
the aerobic granular sludge three-way switch and the secondary sedimentation tank three-way switch are both manually controlled switches.
The opening and closing of the water inlet pump, the inner reflux pump, the aerobic granular sludge discharge pump, the outer reflux pump, the sludge discharge pump and the air compressor and the flow regulating switch are all manual control switches.
The aerobic tank is provided with a dissolved oxygen sensor, and a PLC controller which is in signal and control connection with the automatic control switch of the air compressor and the dissolved oxygen sensor, receives a dissolved oxygen concentration signal of the dissolved oxygen sensor, and adjusts the air supply flow of the air compressor in real time according to the signal and a preset dissolved oxygen concentration standard value.
The utility model relates to a high-efficient operation mechanism who cultivates aerobic granular sludge's continuous flowing water treatment reaction unit:
sewage to be treated flows into the anaerobic tank through the water inlet pump, and sequentially passes through the anaerobic tank, the anoxic tank, the aerobic tank and the aerobic granular sludge selection tank in a baffled continuous flow mode. The influent water is fully mixed, which is beneficial to the microorganisms to complete denitrification and dephosphorization, and the hydraulic shearing force generated by the baffling mode is more beneficial to the formation of aerobic granular sludge; according to a reasonable height-diameter ratio, the granular sludge with heavy weight is preferentially refluxed to the anaerobic tank through the hydraulic screening effect, so that the advantage of the granular sludge is increased. And the effluent pipe at the upper part of the aerobic granular sludge selection tank flows to a secondary sedimentation tank for sedimentation treatment. And discharging the precipitate through a drain pipe. And reasonably controlling part of sludge in the secondary sedimentation tank to flow back to the front end of the aerobic tank through an external reflux pump and an external reflux pipe. The return flow of the mixed liquid in the aerobic tank, the aerobic granular sludge and the sludge in the secondary sedimentation tank is reasonably controlled, so that the separation effect of the granular sludge and the common sludge is achieved, and the loss of the granular sludge is avoided. Improving the biological reaction processes of nitrification, denitrification and denitrification dephosphorization in the water treatment process.
The water treatment process is characterized in that:
1. the water flow mode in the system is a baffling mode, namely the water flows into the anoxic tank from the upper part of the anaerobic tank, then flows into the aerobic tank from the lower part of the anoxic tank, and then flows into the aerobic granular sludge selection tank from the upper part of the aerobic tank.
2. The anaerobic tank and the anoxic tank are provided with stirrers, so that the returned aerobic granular sludge is fully fused with sewage in the tanks.
3. The aerobic tank is provided with an aeration disc, and the concentration of dissolved oxygen is controlled to be 2-4 mg/L.
4. The internal reflux ratio of the mixed liquid in the aerobic tank is 200-300 percent, namely the flow of the internal reflux pump is 2-3 times of that of the water inlet pump.
5. The reflux ratio of the aerobic granular sludge is 100-150%, namely the flow of the aerobic granular sludge reflux pump is 1-1.5 times of that of the water inlet pump.
6. The external reflux ratio of the sludge is 100-150%, namely the flow of the external reflux pump is 1-1.5 times of that of the water inlet pump.
7. The height-diameter ratio, namely the height/diameter, of the aerobic granular sludge selection tank is 3: 1.
The utility model relates to a high-efficient beneficial effect who cultivates aerobic granular sludge's continuous flowing water treatment reaction unit:
1. the floor area of the water treatment device can be greatly reduced, the capital investment and the equipment investment are reduced, and the investment cost and the operation cost are greatly reduced;
2. greatly reduces the production of excess sludge and greatly reduces the cost of sewage treatment.
3. Obviously reduces energy consumption and has good energy-saving effect.
4. The baffling water inlet mode and the structure of the aerobic granular sludge selection tank effectively improve the formation and growth of the aerobic granular sludge.
5. The water quality after treatment is obviously improved.
6. Simple and ingenious structure, and is a water treatment reaction device for stably and effectively culturing aerobic granular sludge.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The invention is described below with reference to the drawings and examples in the specification:
example 1: referring to the attached drawings, the continuous flowing water treatment reaction device for efficiently culturing the aerobic granular sludge is sequentially provided with an anaerobic tank 1, an anoxic tank 2, an aerobic tank 3, an aerobic granular sludge selection tank 4 and a secondary sedimentation tank 5 from front to back; the anaerobic tank and the anoxic tank are both provided with a stirrer 15, the bottom of the aerobic tank is provided with a plurality of aeration heads 16, and the aeration heads are communicated with an air compressor 23 for air supply through an air pipe 14; the aerobic granular sludge selection tank is internally provided with a partition plate 24 from the tank mouth to the upper part of the tank bottom, a space is reserved between the bottom end of the partition plate and the tank bottom, the upper space of the tank is divided into a front part and a rear part, the tank bottom is arranged into a funnel shape, the funnel-shaped tank bottom is provided with a water outlet and a water outlet pipe, the aerobic granular sludge is communicated with the front anaerobic tank through an aerobic granular sludge three-way switch 25, an aerobic granular sludge return pipe 10 and an aerobic granular sludge return pump 19, and the aerobic granular sludge is discharged through the aerobic granular sludge three-way switch 25, an aerobic granular sludge discharge pump 20 and an aerobic granular sludge discharge pipe 11; the bottom of the secondary sedimentation tank is funnel-shaped, the bottom of the secondary sedimentation tank is provided with a sludge discharge pipe and a secondary sedimentation tank three-way switch 26, the secondary sedimentation tank three-way switch is communicated with the front aerobic tank through the outer reflux pump 21 and the sludge reflux pipe 12, and the secondary sedimentation tank three-way switch is communicated with the sludge discharge port through the sludge discharge pump 22 and the sludge discharge pipe 13; a water inlet is arranged at the bottom of the anaerobic tank, sewage to be treated enters the anaerobic tank from the bottom of the anaerobic tank through a water inlet pump 17, a water inlet pipe 6 and a water inlet 27, and the anaerobic tank is communicated with the anoxic tank through a first upper water outlet 28 at the upper part; the anoxic tank is communicated with the bottom of the aerobic tank through an opening 29 at the bottom, the aerobic tank is communicated with the upper opening of the aerobic granular sludge selection tank through a second upper water outlet 30 at the upper part, and the sewage rich in the aerobic granular sludge selection tank passes through the tank bottom from the lower part of the bottom of the partition plate in the tank, then rises into the latter half tank, and is communicated with the secondary sedimentation tank through a third upper water outlet 31 and a water outlet pipe 7 at the upper edge of the tank wall; a drain pipe 8 is arranged at the upper opening of the secondary sedimentation tank; the aerobic tank is also communicated with the front end of the anoxic tank through an internal reflux pump 18 and an internal reflux pipe 9. The aerobic granular sludge three-way switch and the secondary sedimentation tank three-way switch are both manual control switches; the opening and closing and flow regulating switches of the water inlet pump 17, the inner reflux pump 18, the aerobic granular sludge reflux pump 19, the aerobic granular sludge discharge pump 20, the outer reflux pump 21, the sludge discharge pump 22 and the air compressor 23 are all manual control switches.
Example 2: a continuous flowing water treatment reaction device for efficiently culturing aerobic granular sludge is characterized in that an air compressor for supplying air to an aeration head of an aerobic tank is opened and closed, a flow regulating switch is an automatic control switch, a dissolved oxygen sensor is arranged in the aerobic tank, and the model of the dissolved oxygen sensor is Siemens com 253; and a PLC controller which is connected with the automatic control switch of the air compressor and the dissolved oxygen sensor in a signal and control way and has the model of Mitsubishi fx5u, wherein the PLC controller receives the dissolved oxygen concentration signal of the dissolved oxygen sensor and according to the signal and a preset dissolved oxygen concentration standard value: 2-4mg/L for real-time adjustment of air supply flow of the air compressor. The other structures are the same as those of embodiment 1, and are not described again.
The above examples were tried in half a year, and the test results were:
1. the floor area of the water treatment device can be reduced by 50-75%, the capital investment and the equipment investment are reduced, and the investment cost and the operation cost are greatly reduced;
2. reduce the production of residual sludge by 60-80% and greatly reduce the cost of sewage treatment.
3. The energy consumption can be reduced by 30-50%.
4. The water quality after treatment is obviously improved, and the treated effluent reaches the first-grade A standard.
It should be noted that, without departing from the basic structure of the present invention, several modifications and changes can be made, and the technical solutions of these improvements and changes should be regarded as the protection scope of this patent, and the products should be regarded as infringing products.
Claims (4)
1. A continuous flowing water treatment reaction device for efficiently culturing aerobic granular sludge is characterized in that an anaerobic tank (1), an anoxic tank (2), an aerobic tank (3), an aerobic granular sludge selection tank (4) and a secondary sedimentation tank (5) are sequentially arranged from front to back; the anaerobic tank and the anoxic tank are both provided with a stirrer (15), the bottom of the aerobic tank is provided with a plurality of aeration heads (16), and the aeration heads are communicated with an air compressor (23) for air supply through an air pipe (14); a partition plate (24) is arranged in the aerobic granular sludge selection tank from the tank opening to the upper part of the tank bottom, a space is reserved between the bottom end of the partition plate and the tank bottom, the upper space of the tank is divided into a front part and a rear part, the tank bottom is arranged into a funnel shape, the funnel-shaped tank bottom is provided with a water outlet and a water outlet pipe, the aerobic granular sludge is communicated with the front anaerobic tank through an aerobic granular sludge three-way switch (25) and an aerobic granular sludge return pipe (10) and an aerobic granular sludge return pump (19), and part of aerobic granular sludge is discharged through the aerobic granular sludge three-way switch (25), the aerobic granular sludge discharge pump (20) and an aerobic granular sludge discharge pipe (11); the bottom of the secondary sedimentation tank is funnel-shaped, the bottom of the secondary sedimentation tank is provided with a sludge discharge pipe and a secondary sedimentation tank three-way switch (26), the secondary sedimentation tank three-way switch is communicated with the front aerobic tank through an outer reflux pump (21) and a sludge return pipe (12), and the secondary sedimentation tank three-way switch is communicated with a sludge discharge port through a sludge discharge pump (22) and a sludge discharge pipe (13); a water inlet (27) is arranged at the bottom of the anaerobic tank, sewage to be treated enters the anaerobic tank from the bottom of the anaerobic tank through a water inlet pump (17), a water inlet pipe (6) and the water inlet, and the anaerobic tank is communicated with the anoxic tank through a first upper water outlet (28) at the upper part of the anaerobic tank; the anoxic tank is communicated with the bottom of the aerobic tank through an opening (29) at the bottom, the aerobic tank is communicated with the upper opening of the aerobic granular sludge selection tank through a second upper water outlet (30) at the upper part, and the sewage rich in the aerobic granular sludge selection tank passes through the bottom of the tank from the lower part of the bottom of the partition plate in the tank, rises into the latter half tank and is communicated with the secondary sedimentation tank through a third upper water outlet (31) and a water outlet pipe (7) at the upper edge of the tank wall; a drain pipe (8) is arranged at the upper opening of the secondary sedimentation tank; the aerobic tank is also communicated with the front end of the anoxic tank through an internal reflux pump (18) and an internal reflux pipe (9).
2. The continuous flow treatment reactor for efficiently culturing aerobic granular sludge according to claim 1, wherein the aerobic granular sludge three-way switch and the secondary sedimentation tank three-way switch are both manually controlled switches.
3. The continuous flow treatment reaction device for efficiently culturing the aerobic granular sludge according to claim 1, wherein the water inlet pump (17), the internal reflux pump (18), the aerobic granular sludge reflux pump (19), the aerobic granular sludge discharge pump (20), the external reflux pump (21), the sludge discharge pump (22) and the air compressor (23) are all manually controlled switches.
4. The continuous flow water treatment reactor for efficiently cultivating aerobic granular sludge as claimed in claim 1, wherein the on/off and flow rate adjusting switches of the air compressor for supplying air to the aeration head of the aerobic tank are automatic control switches, a dissolved oxygen sensor is provided in the aerobic tank, and a PLC controller is provided in signal and control connection with the automatic control switch and the dissolved oxygen sensor of the air compressor, and receives the dissolved oxygen concentration signal of the dissolved oxygen sensor, and adjusts the air supply flow rate of the air compressor in real time according to the signal and a preset standard value of the dissolved oxygen concentration.
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| CN202023062349.8U CN213950922U (en) | 2020-12-17 | 2020-12-17 | Continuous flowing water treatment reaction device for efficiently culturing aerobic granular sludge |
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| CN202023062349.8U CN213950922U (en) | 2020-12-17 | 2020-12-17 | Continuous flowing water treatment reaction device for efficiently culturing aerobic granular sludge |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114380395A (en) * | 2022-01-19 | 2022-04-22 | 北京华益德环境科技有限责任公司 | Continuous flow aerobic granular sludge biochemical system |
| CN115159798A (en) * | 2022-06-14 | 2022-10-11 | 海若斯（北京）环境科技有限公司 | Continuous flow aerobic granular sludge reaction device and treatment process |
| CN117228841A (en) * | 2023-11-16 | 2023-12-15 | 北京华益德环境科技有限责任公司 | Side-stream granulating continuous-flow aerobic granular sludge treatment device |
| CN117285148A (en) * | 2023-11-16 | 2023-12-26 | 北京华益德环境科技有限责任公司 | Continuous flow aerobic granular sludge treatment device |
-
2020
- 2020-12-17 CN CN202023062349.8U patent/CN213950922U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114380395A (en) * | 2022-01-19 | 2022-04-22 | 北京华益德环境科技有限责任公司 | Continuous flow aerobic granular sludge biochemical system |
| CN114380395B (en) * | 2022-01-19 | 2022-12-20 | 北京华益德环境科技有限责任公司 | Continuous flow aerobic granular sludge biochemical system |
| CN115159798A (en) * | 2022-06-14 | 2022-10-11 | 海若斯（北京）环境科技有限公司 | Continuous flow aerobic granular sludge reaction device and treatment process |
| CN117228841A (en) * | 2023-11-16 | 2023-12-15 | 北京华益德环境科技有限责任公司 | Side-stream granulating continuous-flow aerobic granular sludge treatment device |
| CN117285148A (en) * | 2023-11-16 | 2023-12-26 | 北京华益德环境科技有限责任公司 | Continuous flow aerobic granular sludge treatment device |
| CN117228841B (en) * | 2023-11-16 | 2024-02-09 | 北京华益德环境科技有限责任公司 | Side-stream granulating continuous-flow aerobic granular sludge treatment device |
| CN117285148B (en) * | 2023-11-16 | 2024-03-15 | 北京华益德环境科技有限责任公司 | Continuous flow aerobic granular sludge treatment device |
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