CN216837333U - Device for improving MSBR (moving steam producer) high water treatment capacity in rainy season - Google Patents
Device for improving MSBR (moving steam producer) high water treatment capacity in rainy season Download PDFInfo
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- CN216837333U CN216837333U CN202122186155.7U CN202122186155U CN216837333U CN 216837333 U CN216837333 U CN 216837333U CN 202122186155 U CN202122186155 U CN 202122186155U CN 216837333 U CN216837333 U CN 216837333U
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Abstract
This patent belongs to the sewage treatment field, and specific relates to a device for improving MSBR heavy water yield throughput in rainy season. The device for improving the MSBR heavy water treatment capacity in rainy season specifically comprises a water inlet distribution pipeline device, an electric ball valve, an electromagnetic flowmeter, a sludge concentration meter, a treatment pool and an online control platform, wherein the water inlet distribution pipeline device comprises three pipelines. Through the technical improvement of the multi-point water inlet process, the rainy season processing capacity of the MSBR can be improved to be more than 400% -500% of the dry season design flow, the problem that the activated sludge processing device cannot process due to the fact that a large amount of activated sludge is lost under the condition of overload operation in rainy seasons is effectively avoided, solid load and hydraulic load which can be borne by an MSBR sedimentation area are doubled compared with those in a conventional operation mode, and the loss of a large amount of sludge and the standard exceeding of effluent quality are avoided.
Description
Technical Field
This patent belongs to the sewage treatment field, and IPC is classified no: C02F11/00, in particular to a device for improving the capacity of MSBR for treating large water in rainy season.
Background
The traditional MSBR-based sewage treatment process does not need a secondary sedimentation tank in the using process, combines the treatment advantages of the traditional activated sludge process, adopts a treatment mode of dividing a single tank into a plurality of cells, and is widely applied to sewage treatment production.
However, during the rainy season, the amount of the rain and sewage mixed water actually entering the sewage treatment plant far exceeds the daily water inflow, and the water treatment devices in the sewage treatment plant are in an overload operation state. The actual retention time of the activated sludge treatment device is shortened, the sewage treatment degree is reduced, the actual hydraulic load and solid load of the subsequent secondary sedimentation tank far exceed the design values, so that the activated sludge cannot be effectively precipitated, the effluent suspended matters and various indexes easily exceed the standards, and the activated sludge is greatly lost to cause the collapse of the activated sludge treatment device, so that a set of sewage treatment device capable of effectively coping with large hydraulic impact load is urgently needed to be designed.
The patent 'an improvement type MSBR technology sewage treatment system', the main improvement is with having increased the dissolving medicine pond to put into relevant medicament and make quality of water up to standard, but does not mention the inflow reposition of redundant personnel problem under the heavy load.
Although the MSBR function partition is redesigned, the main improvement point of the system is that a water inlet point is added in a pre-anoxic zone, so that backflow sludge and inlet water are quickly mixed, an anaerobic state is achieved, and the problem of large hydraulic impact load based on the MSBR is not considered.
SUMMERY OF THE UTILITY MODEL
Aiming at some problems in the prior art, the patent provides a device for improving the capacity of treating the large water amount of MSBR in rainy season, which is characterized by comprising a water inlet distribution pipeline device 1, an electric ball valve 2, an electromagnetic flowmeter 3, a sludge concentration meter 4, a treatment pool and an online control platform; the water inlet distribution pipeline device 1 comprises three pipelines.
Preferably, the treatment tank comprises a first SBR unit 6, a first anoxic/aerobic unit 7; the first SBR unit 6 and the first anoxic/aerobic unit 7 are connected in sequence.
Preferably, the treatment tank further comprises a second SBR unit 14, a second anoxic/aerobic unit 15; the second SBR unit 14 and the second anoxic/aerobic unit 15 are connected in sequence.
Preferably, the first SBR unit 6 and the second SBR unit 14 in the treatment tank are respectively provided with a sludge return pump 5, and the sludge return pump 5 is provided with a variable frequency controller.
Preferably, the treatment tank further comprises an aerobic unit 13, and the aerobic unit 13 is connected with the first anoxic/aerobic unit 7 and the second anoxic/aerobic unit 15.
Preferably, the treatment tank further comprises a pre-anoxic unit 8, a sludge concentration unit 9, an anaerobic unit 10, a first anoxic unit 11 and a second anoxic unit 12.
Preferably, the pre-anoxic unit 8, the sludge concentration unit 9, the anaerobic unit 10, the first anoxic unit 11 and the second anoxic unit 12 in the treatment tank are connected in sequence; the anaerobic unit 10 is connected with a middle pipeline of the water inlet distribution pipeline device 1, and the aerobic unit 13 is connected with pipelines at two sides of the water inlet distribution pipeline device 1; the second anoxic unit 12 is connected with the aerobic unit 13; the first SBR unit 6 and the second SBR unit 14 are connected with the sludge concentration unit 9 through a sludge reflux pump 5, and the first lack/aerobic unit 7 and the second lack/aerobic unit 15 are connected with the aerobic unit 13.
Preferably, the electromagnetic flow meter 3 is respectively installed at the middle end of each pipeline of the intake water distribution pipeline device 1.
Preferably, the electric ball valve 2 is arranged at the front end of the electromagnetic flowmeter 3 close to the water inlet.
Preferably, the sludge concentration meter 4 is provided inside the first SBR unit 6 and the second SBR unit 14 of the treatment tank, respectively.
Compared with the prior art, the patent has the following beneficial effects:
(1) through the technical improvement of the multi-point water inlet process, the rainy season treatment capacity of the MSBR device can be improved to be more than 400-500% of the dry season design flow, and the problem that the activated sludge treatment device cannot treat activated sludge caused by the loss of a large amount of activated sludge under the condition of the operation of excessive water quantity in rainy seasons is effectively avoided.
(2) By adjusting the operation period of SBR units on two sides of the MSBR, the MSBR is in a state of precipitating water at the same time, and in this case, the solid load and the hydraulic load which can be borne by an MSBR precipitation area are doubled compared with those in a conventional operation mode.
(3) After the flow distribution treatment, a large amount of activated sludge can be prevented from being brought into a precipitation area of the MSBR, so that the inflow solid load of the precipitation area is reduced, and the loss of a large amount of sludge and the standard exceeding of the effluent quality are avoided.
(4) The device can ensure that the MSBR can effectively process the large water volume impact load with low concentration in rainy season, and can rapidly recover the processing capacity of the MSBR to normal water quality concentration and water volume after the water volume is reduced.
Drawings
Fig. 1 is a schematic diagram of MSBR rainy season mode operation.
In the figure: 1. a water inlet distribution pipeline device; 2. an electric ball valve; 3. an electromagnetic flow meter; 4. a sludge concentration meter; 5. a sludge reflux pump; 6. a first SBR unit; 7. a first anoxic/aerobic unit; 8. a pre-anoxic unit; 9. A sludge concentration unit; 10. an anaerobic unit; 11. a first anoxic unit; 12. a second anoxic unit; 13. an aerobic unit; 14. a second SBR unit; 15. a second anoxic/aerobic unit.
Detailed Description
A device for improving the MSBR heavy water treatment capacity in rainy season specifically comprises a water inlet distribution pipeline device 1, an electric ball valve 2, an electromagnetic flowmeter 3, a sludge concentration meter 4, a treatment pool and an online control platform; the water inlet distribution pipeline device 1 comprises three pipelines.
In a preferred embodiment, the MSBR is an improved sequencing batch reactor, which is a sewage treatment plant that does not require the function of a secondary sedimentation tank and can be operated by continuous water inflow, and the online control platform is used for controlling the equipment and instruments and adjusting the setting of the operation period of the MSBR.
In one embodiment, the treatment tank comprises, a first SBR unit 6, a first anoxic/aerobic unit 7; the first SBR unit 6 and the first anoxic/aerobic unit 7 are connected in sequence.
In one embodiment, the treatment tank further comprises, a second SBR unit 14, a second anoxic/aerobic unit 15; the second SBR unit 14 and the second anoxic/aerobic unit 15 are connected in sequence.
The 'anoxic/aerobic unit' in the application is used for realizing the operation of the enhanced nitrogen and phosphorus removal process of the sewage by performing anaerobic and aerobic alternate work on the sewage.
In one embodiment, the first SBR unit 6 and the second SBR unit 14 of the treatment tank are respectively provided with a sludge return pump 5, and the sludge return pump 5 is provided with a variable frequency controller.
In a preferred embodiment, the frequency conversion controller steplessly adjusts the flow rate of the sewage, and the frequency converter can adjust the rotating speed of the corresponding motor to control the flow rate, so that the water outlet mode of the water outlet valve which is adjusted manually in the traditional mode is changed, and water leakage and motor consumption are avoided.
In one embodiment, the treatment tank further comprises an aerobic unit 13, and the aerobic unit 13 is connected with the first anoxic/aerobic unit 7 and the second anoxic/aerobic unit 15.
In a preferred embodiment, the treatment tank adopts a mode of matching a single tank with a plurality of treatment units, which is convenient for a sewage production processor to optimize and improve the process, wherein the aerobic unit 13 is a water inlet mode that the head end and the tail end are respectively provided with water.
In one embodiment, the treatment tank further comprises a pre-anoxic unit 8, a sludge concentration unit 9, an anaerobic unit 10, a first anoxic unit 11, and a second anoxic unit 12.
In a preferred embodiment, the sludge reflux pump 5 is started while the influent distribution pipeline device 1 is branched, and the sludge concentration and the sludge age in the device are ensured by completely refluxing the reflux sludge to the sludge concentration unit 9 in the treatment tank, so that the degradation, nitrification and denitrification functions of organic matters in the device are ensured, wherein the supernatant of the sludge concentration unit 9 is connected with the aerobic unit 13 through a pipeline, and the aerobic unit 13 is connected with the first SBR unit 6 and the second SBR unit 14 through the first anoxic/aerobic unit 7 and the second anoxic/aerobic unit 15 respectively.
In one embodiment, the pre-anoxic unit 8, the sludge concentration unit 9, the anaerobic unit 10, the first anoxic unit 11 and the second anoxic unit 12 are connected in sequence in the treatment tank; the anaerobic unit 10 is connected with a middle pipeline of the water inlet distribution pipeline device 1, and the aerobic unit 13 is connected with pipelines at two sides of the water inlet distribution pipeline device 1; the second anoxic unit 12 is connected with the aerobic unit 13; the first SBR unit 6 and the second SBR unit 14 are connected with the sludge concentration unit 9 through a sludge reflux pump 5, and the first lack/aerobic unit 7 and the second lack/aerobic unit 15 are connected with the aerobic unit 13.
In one embodiment, the electromagnetic flow meter 3 is installed at the middle end of each pipeline of the intake water distribution pipeline device 1.
In one embodiment, the electric ball valve 2 is arranged at the front end of the electromagnetic flow meter 3 close to the water inlet.
In a preferred embodiment, the electric ball valve 2 uses a motor to control the on-off of a large-discharge liquid path switch; the electromagnetic flowmeter 3 measures the real-time sewage flow of the pipeline in an electromagnetic induction mode.
In one embodiment, the sludge concentration meters 4 are disposed inside the first SBR unit 6 and the second SBR unit 14 of the treatment tank, respectively.
In a preferred embodiment, the sludge concentration meter 4 can monitor the precipitation effluent period, the sludge concentration and the change of a sludge layer in real time, simultaneously perform flow distribution and return sludge amount adjustment, under a large hydraulic impact load, the inflow water is divided by the inflow water distribution pipeline device 1, the inflow water of the anaerobic unit 10 is adjusted to be 1-1.5 times higher than the inflow water in dry seasons, the residual water is respectively led into the aerobic unit 13 through the head end and the tail end of the aerobic unit 13, and after the residual water is divided into the aerobic unit 13, a mixed aeration reaction is performed to perform adsorption degradation of pollutants before precipitation discharge.
In a preferred embodiment, the online control platform regulates the operating cycles of first SBR unit 6 and second SBR unit 14 in the treatment basin to be in a simultaneous precipitation effluent state.
The working principle is as follows: under the big water conservancy impact load condition in rainy season, intake distribution piping installation 1 is through the control of electric ball valve 2 into water velocity of water, simultaneously through the real-time inflow flow of electromagnetic flowmeter 3 measurement for carry out reasonable management and control and distribution to intaking.
At the initial stage of rainwater entering, the pollutant concentration of initial stage rainwater is higher, and when the water yield rose to 1.5 times dry season design flow, dilution rainwater began to get into, and the system can start the reposition of redundant personnel mode this moment.
The water inlet distribution pipeline device 1 respectively conveys the inlet water to the head and tail end areas of the anaerobic unit 10 and the aerobic unit 13, the water inlet amount of the anaerobic unit 10 is 1-1.5 times of the designed flow amount in dry seasons, after the inlet water is treated by the anaerobic unit 10, the mixed liquid in the anaerobic unit 10 is conveyed to the first anoxic unit 11 and the second anoxic unit 12 for denitrification, the sewage after denitrification treatment enters the aerobic unit 13, the organic matters are degraded, the degraded sewage is sent to a first SBR unit 6 and a second SBR unit 14 for sedimentation after enhanced nitrification and denitrification through a first lack/aerobic unit 7 and a second lack/aerobic unit 15, the settled sludge is sent to a sludge concentration unit 9 for concentration, and the concentrated sludge is conveyed to a pre-anoxic unit 8 for further treatment and then conveyed to an anaerobic unit 10 through a pipeline, meanwhile, the sludge concentration unit 9 conveys the concentrated supernatant to the aerobic unit 13 through a pipeline for continuous reaction.
And meanwhile, the residual water quantity distributed to two areas at the head end and the tail end of the aerobic unit 13 through the water inlet distribution pipeline device 1 is respectively returned to the sludge concentration unit 9 from the first SBR unit 6 and the second SBR unit 14 through the sludge return pump 5, and the sludge return is enhanced by adopting frequency converter control when the flow rate is large in rainy seasons, so that the sludge loss is avoided. Wherein the sludge concentration meter 4 is respectively arranged in the first SBR unit 6 and the second SBR unit 14 of the MSBR system and is used for monitoring the sludge concentration and the sludge bed height change of the first SBR unit 6 and the second SBR unit 14 in the precipitation effluent period so as to carry out flow distribution and adjustment of the amount of the returned sludge.
Claims (7)
1. A device for improving the MSBR heavy water treatment capacity in rainy season is characterized by comprising a water inlet distribution pipeline device (1), an electric ball valve (2), an electromagnetic flowmeter (3), a sludge concentration meter (4), a treatment pool and an online control platform; the water inlet distribution pipeline device (1) comprises three pipelines, the electromagnetic flow meter (3) is respectively installed at the middle end of each pipeline of the water inlet distribution pipeline device (1), the electric ball valve (2) is arranged at the position, close to a water inlet, of the front end of the electromagnetic flow meter (3), and the sludge concentration meter (4) is respectively arranged inside the first SBR unit (6) and the second SBR unit (14) of the treatment pool.
2. An arrangement for improving the capacity of a MSBR for treatment of large volumes of water in the rainy season according to claim 1, wherein said treatment basin comprises a first SBR unit (6), a first anoxic/aerobic unit (7); the first SBR unit (6) and the first anoxic/aerobic unit (7) are connected in sequence.
3. A device for improving MSBR rainy season high water treatment capacity according to claim 2 wherein said treatment tank further comprises a second SBR unit (14), a second anoxic/aerobic unit (15); the second SBR unit (14) and the second anoxic/aerobic unit (15) are connected in sequence.
4. A device for improving the capacity of MSBR for treating large amounts of water in rainy season according to claim 3, wherein the first SBR unit (6) and the second SBR unit (14) of the treatment basin are respectively provided with a sludge recirculation pump (5), and the sludge recirculation pump (5) is provided with a variable frequency controller.
5. An arrangement for improving the capacity of MSBR for treatment of large amounts of water in the rainy season according to claim 3, characterized in that said treatment basin further comprises an aerobic unit (13), said aerobic unit (13) being connected to the first and second anoxic/aerobic units (7, 15).
6. A device for improving MSBR rainy season high water treatment capacity according to claim 5, wherein said treatment tank further comprises a pre-anoxic unit (8), a sludge concentration unit (9), an anaerobic unit (10), a first anoxic unit (11), a second anoxic unit (12).
7. A device for improving MSBR rainy season high water treatment capacity according to claim 6, characterized in that the pre-anoxic unit (8), the sludge concentration unit (9), the anaerobic unit (10), the first anoxic unit (11) and the second anoxic unit (12) are connected in sequence in the treatment tank; the anaerobic unit (10) is connected with a middle pipeline of the water inlet distribution pipeline device (1), and the aerobic unit (13) is connected with pipelines at two sides of the water inlet distribution pipeline device (1); the second anoxic unit (12) is connected with the aerobic unit (13); the first SBR unit (6) and the second SBR unit (14) are connected with the sludge concentration unit (9) through a sludge reflux pump (5), and the first anoxic/aerobic unit (7) and the second anoxic/aerobic unit (15) are connected with the aerobic unit (13).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122186155.7U CN216837333U (en) | 2021-09-09 | 2021-09-09 | Device for improving MSBR (moving steam producer) high water treatment capacity in rainy season |
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| CN202122186155.7U CN216837333U (en) | 2021-09-09 | 2021-09-09 | Device for improving MSBR (moving steam producer) high water treatment capacity in rainy season |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115974274A (en) * | 2022-09-05 | 2023-04-18 | 可事托环保设备（上海）有限公司 | Device for water inlet distribution and concentrated sludge fermentation to strengthen MSBR (moving sludge recovery) system |
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2021
- 2021-09-09 CN CN202122186155.7U patent/CN216837333U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115974274A (en) * | 2022-09-05 | 2023-04-18 | 可事托环保设备（上海）有限公司 | Device for water inlet distribution and concentrated sludge fermentation to strengthen MSBR (moving sludge recovery) system |
| WO2024050919A1 (en) * | 2022-09-05 | 2024-03-14 | 可事托环保设备（上海）有限公司 | Device for water inlet distribution and concentrated sludge fermentation to strengthen msbr system |
| CN115974274B (en) * | 2022-09-05 | 2024-03-22 | 可事托环保设备（上海）有限公司 | Device for strengthening MSBR system by water inlet distribution and concentrated sludge fermentation |
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