CN111573974A - Self-adaptive distributed sewage treatment device and treatment process - Google Patents
Self-adaptive distributed sewage treatment device and treatment process Download PDFInfo
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- CN111573974A CN111573974A CN202010414965.0A CN202010414965A CN111573974A CN 111573974 A CN111573974 A CN 111573974A CN 202010414965 A CN202010414965 A CN 202010414965A CN 111573974 A CN111573974 A CN 111573974A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
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Abstract
The invention relates to the technical field of water treatment, and particularly relates to and discloses a self-adaptive distributed sewage treatment device which comprises the following components: including the anoxic zone that communicates in proper order, good oxygen district, sedimentation tank and membrane cisterna, set up out the mill weir behind the sedimentation tank, still include sedimentation tank back flow and membrane cisterna return flow, the fan export is connected to membrane module aeration mouth respectively, membrane cisterna return flow, good oxygen district aeration equipment, the sedimentation tank back flow, the fan is furnished with the converter, set up membrane aeration automatic valve on the membrane aeration pipeline, still include electrical system, the liquid level probe of intaking, electrical system is connected with liquid level probe, the intake pump respectively, the fan, produce the water pump, membrane aeration automatic valve. The invention also discloses a corresponding treatment process, which comprises the following steps: presetting water inflow and a corresponding operation program; monitoring the water inflow and selecting an operation program; the foregoing steps are repeated as necessary. The self-adaptive distributed sewage treatment device and the treatment process have the advantages of land occupation saving, energy consumption saving, strong adaptability and stable operation.
Description
Technical Field
The invention relates to the technical field of water treatment, in particular to a self-adaptive distributed sewage treatment device and a treatment process.
Background
With the development of economy, the improvement of rural living standard and the continuous increase of population, the comprehensive development scale of rural areas and the utilization intensity of rural and town industries on resources are increasingly expanded, the situations of rural environmental pollution and ecological destruction are increasingly serious, the overall situation of rural environment is not optimistic, and the increasingly aggravated problem of rural environmental pollution is a great social problem which is urgently needed to be solved in the aspects of new rural construction and implementation scientific development. The rural environment treatment is vigorously developed, and the problem of rural environmental pollution is urgently solved.
The village sewage has the main characteristics that: small treatment scale, large change coefficient and large water quality and water quantity fluctuation. The main reasons are as follows: some rural industrial wastewater and domestic sewage are discharged in a confluence manner, so that certain impact is caused to water quality; the rain and sewage are not shunted and some underground water is infiltrated due to reasons of not being kept up with the management and the like.
The existing distributed sewage treatment equipment has poor operation stability and does not use adaptive capacity aiming at the variability of the sewage in villages and towns. At present, the design scale of all distributed treatment sites is taken according to the maximum water volume of the site, and in a simple way, for example, the treatment scale of one distributed sewage treatment site is 20 tons/day, and in most of practical situations, the actual water volume is basically less than half of the design scale, even lower, so that the problems of the current situation are many, such as personnel migration, pipe network leakage, low water consumption of residents, insufficient sewage collection and the like. So a single mode of operation of the decentralized plant would conceivably be able to achieve stable effluent compliance under such conditions. The instability of the equipment operation aggravates the operation and maintenance work, has poor treatment effect and causes resource waste. Therefore, how to adapt the distributed sewage treatment equipment to the working condition to stably operate is extremely important.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the self-adaptive distributed sewage treatment device and the treatment process which are small in occupied area, low in energy consumption, strong in adaptability and stable in operation.
In order to achieve the purpose, the invention adopts the following technical scheme:
a self-adaptive distributed sewage treatment device comprises a regulating tank, a shell, an equipment room, a dosing room and a clean water tank, wherein a water inlet pump is arranged in the regulating tank, a fan and a water production pump are arranged in the equipment room, the shell comprises an anoxic zone, an aerobic zone, a sedimentation tank and a membrane tank which are sequentially communicated, a water inlet is formed in the anoxic zone, an aerobic zone aeration device is arranged at the bottom of the aerobic zone, a water distribution channel is arranged between the aerobic zone and the sedimentation tank, a water outlet weir is arranged between the sedimentation tank and the membrane tank, a third communication port is formed between the water outlet weir and the membrane tank, the water outlet weir is provided with a water outlet weir port, the bottom of the water outlet weir and the third communication port are lower than the water outlet weir port, the membrane tank is provided with a membrane component, a membrane water outlet of the membrane component is connected with a water production pump, the water outlet of the production pump is connected to the clean water tank, the sedimentation tank and the membrane tank are respectively provided with a, The membrane aeration device comprises a membrane tank return pipe, an aerobic zone aeration device and a sedimentation tank return pipe, wherein a fan is provided with a frequency converter, a pipeline connected with an aeration port of a membrane component is provided with a membrane aeration automatic valve, the membrane aeration device also comprises an electric control system, a liquid level probe is arranged in a water inlet tank, and the electric control system is respectively connected with the liquid level probe, a water inlet pump, the fan, a water production pump and the membrane aeration automatic valve.
The structure is provided with two water outlets, namely a water outlet weir port and a clean water tank outlet, only an A/O process can be carried out under the condition that water is produced by membrane component filtration, water is produced by a sedimentation tank, the water also can be produced by the A/O process through sedimentation in the sedimentation tank, the membrane component filtration is used for producing water, the equipment is suitable for various selections, meanwhile, an electric control system has the effect of intelligent control, corresponding processes can be automatically selected according to different water inflow to carry out sewage treatment, the energy consumption is saved, the condition that the water quantity fluctuation is large is adapted, and the operation is stable.
Preferably, the anoxic zone, the aerobic zone, the sedimentation tank and the membrane tank are sequentially communicated and compactly arranged in a shape like a Chinese character 'tian' or a straight line, the dosing room and the clean water tank are positioned on one side of the shell, and the dosing room is positioned above the clean water tank. Compact structure, saves the occupation of land, does benefit to transportation and installation.
Preferably, the water outlet of the water production pump is connected to a pipeline of a clean water tank, the pipeline positioned in the dosing room is divided into water adding branch pipes, and the water adding branch pipes are connected to the dosing room. The problem that the dosing box in the engineering project field is lack of tap water due to remote site installation of the treatment device is solved.
Preferably, the anoxic zone and the aerobic zone are provided with first communicating ports, the first communicating ports are located at the bottom, the aerobic zone and the water distribution channel are provided with second communicating ports, and the second communicating ports are located at the upper part and below the operating liquid level. The hydraulic arrangement is optimized and short-range is avoided.
Preferably, a grid clamping groove is formed in front of the second communication port and used for placing a grid. Intercepting impurities and slowing down the pollution to the membrane.
Preferably, a flocculating agent dosing device and a carbon source dosing device are arranged in the dosing room, a first dosing pump is arranged in the flocculating agent dosing device and is used for dosing to the grid clamping groove of the aerobic area, a second dosing pump is arranged in the carbon source dosing device and is used for dosing to the anoxic area, and the first dosing pump and the second dosing pump are both connected with an electric control system. The electric control system can carry out dosing operation according to a preset program to achieve the best effect.
Preferably, a flow pushing device is arranged in the anoxic zone, a water inlet pipe is arranged in the anoxic zone, and the outlet of the water inlet pipe, the outlet of the return pipe of the sedimentation tank, the outlet of the return pipe of the membrane tank and the feeding port of the carbon source feeding device are located at the same position. The flow of the water body is increased, so that the dissolved oxygen of the mixed reflux liquid is eliminated and the added carbon source is fully utilized.
Preferably, the anoxic zone is also provided with a sludge discharge port which is communicated with a return pipe of the sedimentation tank. Reduce the sludge discharge facilities and reduce the operation and maintenance and investment costs.
A self-adaptive distributed sewage treatment method is characterized in that: the method comprises the following steps:
1) the electric control system presets the water quantity of the regulating tank and a corresponding operation program;
a) when the water amount in the regulating reservoir is small: the method comprises the following steps that a water inlet pump intermittently feeds water, a fan, a water production pump, a membrane aeration automatic valve, a first dosing pump and a second dosing pump are closed during water feeding, water is discharged from a water outlet weir port, the water inlet pump is closed after water feeding is finished, the water production pump and the membrane aeration automatic valve are closed, the fan is intermittently started and stopped at a low frequency, gas is supplied to a biochemical area and a return pipe, the fan is started and stopped for a period, the water feeding is repeated from beginning, and the first dosing pump and the second dosing pump are set to be automatically started to dose the water as required; when the amount of treated water is low, the retention time of sewage is long, and the SBR-like process is adopted and the intermittent operation is set, so that the endogenous consumption of sludge is avoided, and the energy consumption is saved.
b) When the sewage amount in the regulating reservoir is equal, the water inlet pump continuously feeds water, the fan operates at low frequency during water feeding to supply gas for the biochemical region and the return pipe, the water outlet weir port discharges water, the water production pump and the membrane aeration automatic valve are closed, and the first dosing pump and the second dosing pump are set to automatically start dosing as required; when the amount of treated water is moderate, the retention time of sewage is long, an A/O process is adopted, water is precipitated from a sedimentation tank, a membrane module is not used, the energy consumption is saved, and the loss of the membrane module is reduced.
c) When the sewage amount in the regulating tank is large, the water inlet pump continuously feeds water, the water production pump and the membrane aeration automatic valve are opened, the fan continuously operates at high frequency during water feeding to supply gas for the biochemical region, the backflow pipe and the membrane tank, the membrane module filters the produced water, the water outlet of the clean water tank is set, and the first dosing pump and the second dosing pump are automatically opened to dose the medicine as required; when the treated water amount is more, the retention time of the sewage is shorter, except the A/O process, the sedimentation tank is used for sedimentation, the membrane component is added for filtering the produced water, and the quality of the effluent water can be ensured.
d) When the sewage water amount in the regulating tank is excessive, the water inlet pump continuously feeds water, the fan, the water production pump, the membrane aeration automatic valve, the first dosing pump and the second dosing pump are closed during water feeding, a precipitation process is adopted, and the water is discharged from the water outlet weir port; this kind of condition is rare, mostly is weather and leads to, for example downburst rain etc. sewage collection pipe network suffers the entering of a large amount of rainwater, leads to the handling capacity straight-line rising, and the intake chamber can't hold so many rainwater again, for avoiding the sewage of peasant household to irritate backward, so adopt the sedimentation process, for avoiding running mud, whole device uses as the sedimentation tank, greatly increased sedimentation tank volume. The sewage is diluted by a large amount of rainwater, pollutants are reduced greatly, and a precipitation process can be adopted to avoid direct discharge of the sewage.
2) Monitoring the water quantity of the regulating tank, transmitting a water quantity signal to an electric control system, comparing the water quantity signal with preset data, and selecting a corresponding operation program;
3) repeating step 2) or repeating steps 1) and 2).
Preferably, the fan operates at a frequency of at least 30 Hz. The low-frequency operation is reduced, and the service life of the motor is prolonged.
Preferably, the electric control system is provided with a remote module to realize remote adjustment of program operation parameters and real-time networking monitoring. The distributed sewage treatment device is convenient to remotely monitor and control, and the operation and maintenance cost is reduced.
Preferably, the electric control system has a time delay reaction and an anti-interference mechanism for the water level signal of the water inlet pool. Reduce the water intake pool signal and change repeatedly and lead to the electric control procedure to switch the wearing and tearing to equipment repeatedly.
Preferably, the membrane effluent running liquid level is lower than the effluent weir level. The effluent water is prevented from not reaching the standard due to the effluent of the effluent weir when the membrane effluent process is operated.
The self-adaptive distributed sewage treatment device and the treatment process save occupied land, can automatically select corresponding processes to treat sewage according to different water inflow, are adaptive to the condition of large water fluctuation while saving energy consumption, and have strong adaptability and stable operation.
Drawings
Fig. 1 is a schematic structural diagram of an adaptive distributed sewage treatment apparatus according to embodiment 1 of the present invention.
Fig. 2 is a schematic view of an operation mode of a self-adaptive distributed sewage treatment method according to embodiment 1 of the present invention.
Fig. 3 is a schematic structural diagram of equipment in a housing of an adaptive decentralized sewage treatment plant according to embodiment 2 of the present invention.
Fig. 4 is a schematic structural diagram of equipment in a housing of an adaptive decentralized sewage treatment plant according to embodiment 3 of the present invention.
In the figure: 1. a water inlet; 2. an anoxic zone; 3. an aerobic zone; 4. a water distribution channel; 5. a sedimentation tank; 6. an effluent weir; 7. a water outlet weir crest; 9. A membrane tank; 10. a membrane module; 11. a clean water tank; 12. a water outlet of the clean water tank; 13. a flocculating agent dosing device; 14. a carbon source dosing device; 15. a dosing chamber; 16. a medicine adding port; 17. a membrane tank return pipe; 18. a return pipe of the sedimentation tank; 19. an aeration device; 20. a device room; 21. a water production pump; 22. a fan; 23. a flow impeller; 24. a manual valve; 25. a sludge discharge port; 26. a membrane reflux gas supply pipe; 27. a membrane aeration gas supply pipe; 28. an air supply pipe of the aerobic zone; 29. a sedimentation tank backflow air supply pipe; 30. a water outlet of the water production pump; 31. a film water producing port; 32. a grid clamping groove; 33. supporting channel steel; 34. a regulating tank; 35. a housing; 36. a water inlet pump; 37. a membrane aeration automatic valve; 38. an electronic control system; 39. a liquid level probe; 40. a first dosing pump; 41. a second dosing pump; 42. a water inlet pipe; 43. adding water into the branch pipe; 44. a check valve; 45. a remote module; 81. a first communication port; 82. a second communication port; 83. and a third communication port.
Detailed Description
The invention will be further described with reference to fig. 1-4 and the detailed description.
Example 1
A self-adaptive distributed sewage treatment device is shown in figure 1 and comprises a regulating tank 34, a shell 35, an equipment room 20, a dosing room 15 and a clean water tank 11, wherein a water inlet pump 36 is arranged in the regulating tank 34, a fan 22 and a water production pump 21 are arranged in the equipment room 20, an anoxic zone 2, an aerobic zone 3, a sedimentation tank 5 and a membrane tank 9 which are sequentially communicated are arranged in the shell 35, a water inlet 1 is formed in the anoxic zone 2, an aerobic zone aeration device 19 is arranged at the bottom of the aerobic zone 3, a water distribution channel 4 is arranged between the aerobic zone 3 and the sedimentation tank 5, a water outlet weir 6 is arranged between the sedimentation tank 5 and the membrane tank 9, a third communication port 83 is formed between the water outlet weir 6 and the membrane tank 9, the water outlet weir 6 is provided with a water outlet weir port 7, the bottom of the water outlet weir 6 and the third communication port 83 are both lower than the water outlet weir port 7, the membrane tank 9 is provided with a membrane component 10, the water production port 31 of the membrane component 10 is connected with the water, the sedimentation tank 5 and the membrane tank 9 are respectively provided with a sedimentation tank return pipe 18 and a membrane tank return pipe 17 which return to the anoxic zone 2, the outlet of a fan 22 is respectively connected to an aeration port of the membrane module 10, the membrane tank return pipe 17, an aerobic zone aeration device 19 and the sedimentation tank return pipe 18, the fan 22 is provided with a frequency converter, a pipeline of the fan 22 connected to the aeration port of the membrane module 10 is provided with a membrane aeration automatic valve 37, the sedimentation tank further comprises an electric control system 38, a liquid level probe 39 is arranged in the water inlet tank 1, and the electric control system 38 is respectively connected with the liquid level probe 39, a water inlet pump 36, the fan 22, a water production pump 21 and.
The anoxic zone 2, the aerobic zone 3, the sedimentation tank 5 and the membrane tank 9 are compactly arranged in a shape like a Chinese character 'tian', the dosing room 15 and the clean water tank 11 are positioned on one side of the shell 35, and the dosing room 15 is positioned above the clean water tank 11.
The pipeline of the water outlet 30 of the water producing pump connected to the clean water tank 11 passes through the dosing room 15, a water adding branch pipe 43 is branched from the pipeline positioned in the dosing room 15, the water adding branch pipe 43 is connected to the dosing room 15, and the water adding branch pipe 43 is provided with a manual valve 24.
The anoxic zone 2 and the aerobic zone 3 are provided with a first communicating opening 81, the first communicating opening 81 is positioned at the bottom, the aerobic zone 3 and the water distribution channel 4 are provided with a second communicating opening 82, and the second communicating opening 82 is positioned at the upper part and below the operating liquid level. The grille clamping groove 32 is arranged in front of the second communication port 82 and used for placing a grille.
The dosing room 15 is provided with a flocculating agent dosing device 13 and a carbon source dosing device 14, a first dosing pump 40 is arranged in the flocculating agent dosing device 13, dosing is conducted to the grid clamping groove 32 of the aerobic zone 3, a second dosing pump 41 is arranged in the carbon source dosing device 14, dosing is conducted to the anoxic zone 2, and the first dosing pump 40 and the second dosing pump 41 are both connected with the electric control system 38.
The oxygen deficiency zone 2 is internally provided with a flow pushing device 23, the oxygen deficiency zone 2 is also internally provided with a water inlet pipe 42, and the outlet of the water inlet pipe 42 is positioned at the same position with the outlet of the return pipe 18 of the sedimentation tank, the outlet of the return pipe 17 of the membrane tank and the chemical feeding port 16 of the carbon source chemical feeding device 14.
The anoxic zone 2 is also provided with a sludge discharge port 25, the sludge discharge port 25 is communicated with the return pipe 18 of the sedimentation tank, and a manual valve 24 is arranged on a connected pipeline.
The shell 35 adopts the design of container formula, is convenient for make the installation transportation, and the equipment room 20 is placed to the next door, and electrical system 38 is located automatically controlled cabinet, sets up twice grid (not drawn in the picture) in the equalizing basin 34, and one 5mm, one 1mm are equipped with check valve 44 on the equalizing basin 34 inlet channel, prevent that mud from flowing backwards into equalizing basin 34. 1mm membrane gratings (not shown in the figure) are placed in the grating clamping grooves 32 for the first time, so that the aggravation of membrane pollution caused by impurities is relieved for the second time.
In addition to the discharge weir 7, there is a clear water basin outlet 12 which opens into a clear water basin 11, both outlets respectively producing water under different process conditions. A baffle (not shown in the figure) is arranged in front of the water outlet weir 6, and the supernatant of the sedimentation tank 5 flows out from the lower part of the baffle, so that the sludge floating up in the sedimentation tank 5 can be blocked, and the sludge leakage phenomenon is avoided.
A supporting channel steel 33 is arranged in the membrane pool 9, and the membrane module 10 is hung on the supporting channel steel 33.
The outlet of the fan 22 is connected to the aeration port of the membrane module 10 through a membrane aeration air supply pipe 27, is connected to the membrane pool return pipe 17 through a membrane return air supply pipe 26, is connected to the aerobic zone aeration device 19 through an aerobic zone air supply pipe 28, is connected to the sedimentation tank return pipe 18 through a sedimentation tank return air supply pipe 29, the membrane aeration automatic valve 37 is arranged on the membrane aeration air supply pipe 27, the membrane aeration air supply pipe 27 is also provided with a manual valve 24, and the other air supply pipes are all provided with the manual valves 24.
The level probe 39 is an ultrasonic level probe that monitors and transmits a level signal from the conditioning tank 34.
In the embodiment, a buried design is adopted, the equipment room 20 and the electric control cabinet are located on the ground, and the equipment is prevented from being soaked and damaged due to the fact that underground water flows backwards.
A self-adaptive decentralized sewage treatment method is shown in the attached figure 2, and comprises the following steps:
1) the electric control system presets the water quantity of the regulating tank 34 and corresponding operation programs:
a) when the water amount in the regulating reservoir 34 is less: the water inlet pump 36 intermittently feeds water, the water inlet pump 22, the water production pump 21, the membrane aeration automatic valve 37, the first dosing pump 40 and the second dosing pump 41 are closed in the water inlet period, the water outlet weir crest 7 discharges water, after the water inlet is finished, the water inlet pump 36 is closed, the water production pump 21 and the membrane aeration automatic valve are closed 37, the fan 22 is intermittently started and stopped at low frequency for 2 hours and 2 hours, so that gas is supplied to a biochemical area and a return pipe, after the fan 22 is started and stopped for one period, the water inlet from the beginning is repeated, the first dosing pump 40 and the second dosing pump 41 are set to be automatically started to dose water according to needs, the SBR-like process is adopted, and the sedimentation tank 5 discharges water;
b) when the sewage water amount in the regulating tank 34 is moderate, the water inlet pump 36 continuously feeds water, the fan 22 runs at a low frequency and runs at a frequency of 35Hz during water inlet, gas is supplied to the biochemical region and the return pipe, the water outlet weir port 7 discharges water, the water production pump 21 and the membrane aeration automatic valve 37 are closed, the first dosing pump 40 and the second dosing pump 41 are set to automatically start dosing according to needs, an A/O process is adopted, and the sedimentation tank 5 discharges water;
c) when the sewage water amount in the regulating tank 34 is large, the water inlet pump 36 continuously feeds water, the water production pump 21 and the membrane aeration automatic valve 37 are opened, the fan 22 continuously operates at high frequency during water inlet, the operating frequency is 50Hz, gas is supplied to the biochemical region, the return pipe and the membrane tank 9, the membrane module 10 filters the produced water, the water is discharged from the water outlet 12 of the clean water tank, the first dosing pump 40 and the second dosing pump 41 are set to automatically start dosing according to the requirement, and the A/O + sedimentation tank process is adopted to discharge the water from the membrane module 10;
d) when the sewage water amount in the regulating tank 34 is excessive, the water inlet pump 36 continuously feeds water, the fan 22, the water production pump 21, the membrane aeration automatic valve 37, the first dosing pump 40 and the second dosing pump 41 are closed during water inlet, the precipitation process is adopted, and the water outlet weir notch 7 discharges water;
2) monitoring the water quantity of the regulating tank 34, acquiring and transmitting a water quantity signal to the electric control system 38, comparing the signal with preset data, judging, and selecting a corresponding operation program;
3) repeating step 2) or repeating steps 1) and 2).
This example includes step 1) initial setting: when the water amount in the regulating tank 34 is only 10% -30% of the designed water amount, the process a) is operated; when the water amount in the water inlet tank is 30-60% of the designed water amount, the process b) is operated; when the water amount in the water inlet tank is 60% -100% of the designed water amount, the process c) is operated; and (d) operating the process when the water amount in the water inlet tank exceeds the designed water amount. The setting of the water quantity proportion can be modified and adjusted according to the actual operation condition of the project.
The electronic control system 38 is equipped with a remote module 45, and can realize remote adjustment of program operating parameters and real-time networking monitoring.
The electronic control system 38 has a time-delay response and an anti-interference mechanism for the water level signal of the water inlet pool.
The operating liquid level of the film effluent is lower than the level of the effluent weir crest 7.
The sewage automatically flows into a regulating tank 34, is lifted by a water inlet pump 36 after being pretreated to enter a water inlet 1, sequentially enters an anoxic zone 2 and an aerobic zone 3 for biochemical action, achieves the purposes of denitrification and dephosphorization and removal of partial organic matters through a series of biochemical actions, and then is separated by a sedimentation tank 5 to obtain water or/and separated by a membrane separation technology to reach the discharge standard.
The treatment scale of the embodiment is 20T/D, the test station is positioned in a village-level sewage treatment station, and the inlet water is the water quality of common domestic sewage. The effluent water quality standard executes the first-class A standard of GB18918-2002 discharge Standard of pollutants for municipal wastewater treatment plants. Through a test period of up to one year, compared with other similar products, the equipment runs stably, and the effluent quality is stable and reaches the standard.
Example 2
The structure and connection relationship of the other parts are as shown in embodiment 1, except that: as shown in the attached figure 3, the anoxic zone 2, the aerobic zone 3, the sedimentation tank 5 and the membrane tank 9 are sequentially communicated and compactly arranged in a straight line shape, two groups of membrane modules are arranged in the membrane tank 9, and the two groups of membrane modules are connected in parallel.
Example 3
The structure and connection relationship of the other parts are as shown in embodiment 2, except that: as shown in fig. 4, the membrane modules in the membrane tank 9 are four groups, and the four groups of membrane modules are connected in parallel.
In summary, the present invention is only a preferred embodiment, and is not intended to limit the scope of the invention, and all equivalent changes and modifications made in the content of the claims should be considered as the technical scope of the invention.
Claims (13)
1. The utility model provides a distributed sewage treatment plant of self-adaptation, includes equalizing basin (34), shell (35), equipment room (20), adds medicine room (15) and clean water basin (11), sets up intake pump (36) in equalizing basin (34), sets up fan (22) and product water pump (21) in equipment room (20), its characterized in that: the shell (35) is internally provided with an anoxic zone (2), an aerobic zone (3), a sedimentation tank (5) and a membrane pool (9) which are sequentially communicated, a water inlet (1) is formed in the anoxic zone (2), an aerobic zone aeration device (19) is arranged at the bottom of the aerobic zone (3), a water distribution channel (4) is arranged between the aerobic zone (3) and the sedimentation tank (5), a water outlet weir (6) is arranged between the sedimentation tank (5) and the membrane pool (9), a third communication port (83) is formed between the water outlet weir (6) and the membrane pool (9), the water outlet weir (6) is provided with a water outlet weir port (7), the bottom of the water outlet weir (6) and the third communication port (83) are both lower than the water outlet weir port (7), the membrane pool (9) is provided with a membrane component (10), a membrane water production port (31) of the membrane component (10) is connected with a water production pump (21), a clear water tank (11) of the water production pump (30), the sedimentation tank (11) is connected with a return pipe and the membrane pool (9) which are respectively provided with a return pipe and a (17) The outlet of the fan (22) is respectively connected to an aeration port of the membrane component (10), a membrane pool return pipe (17), an aerobic zone aeration device (19) and a sedimentation tank return pipe (18), the fan (22) is provided with a frequency converter, a membrane aeration automatic valve (37) is arranged on a pipeline connecting the fan (22) to the aeration port of the membrane component (10), the device also comprises an electric control system (38), a liquid level probe (39) is arranged in the water inlet pool (1), and the electric control system (38) is respectively connected with the liquid level probe (39), a water inlet pump (36), the fan (22), a water production pump (21) and the membrane aeration automatic valve (37).
2. The self-adaptive decentralized sewage treatment plant according to claim 1, characterized in that: the anoxic zone (2), the aerobic zone (3), the sedimentation tank (5) and the membrane tank (9) are sequentially communicated and compactly arranged in a shape like a Chinese character 'tian' or a straight line, the dosing room (15) and the clean water tank (11) are positioned on one side of the shell (35), and the dosing room (15) is positioned above the clean water tank (11).
3. The self-adaptive decentralized sewage treatment plant according to claim 2, characterized in that: the water outlet (30) of the water producing pump is connected to the pipeline of the clean water tank (11) and passes through the dosing room (15), a water adding branch pipe (43) is branched from the pipeline positioned in the dosing room (15), and the water adding branch pipe (43) is connected to the dosing room (15).
4. The self-adaptive decentralized sewage treatment plant according to claim 1, characterized in that: anoxic zone (2) and good oxygen district (3) have first intercommunication mouth (81), and first intercommunication mouth (81) are located the bottom, and aerobic zone (3) and water distribution canal (4) have second intercommunication mouth (82), and second intercommunication mouth (82) are located upper portion, under the operation liquid level.
5. The self-adaptive decentralized sewage treatment plant according to claim 4, characterized in that: a grating clamping groove (32) is arranged in front of the second communicating opening (82) and used for placing a grating.
6. The self-adaptive decentralized sewage treatment plant according to claim 5, characterized in that: between adding medicine (15) have flocculating agent charge device (13) and carbon source charge device (14), set up first dosing pump (40) in flocculating agent charge device (13), add medicine to aerobic zone (3) grid draw-in groove (32) department, set up second dosing pump (41) in carbon source charge device (14), add medicine to anoxic zone (2), first dosing pump (40) and second dosing pump (41) all be connected with electrical system (38).
7. The self-adaptive decentralized sewage treatment plant according to claim 6, characterized in that: a flow pushing device (23) is arranged in the anoxic zone (2), a water inlet pipe (42) is arranged in the anoxic zone (2), and the outlet of the water inlet pipe (42) is positioned at the same position with the outlet of a return pipe (18) of the sedimentation tank, the outlet of a return pipe (17) of the membrane tank and a dosing port (16) of a carbon source dosing device (14).
8. The self-adaptive decentralized sewage treatment plant according to claim 1, characterized in that: the anoxic zone (2) is also provided with a sludge discharge port (25), and the sludge discharge port (25) is communicated with a return pipe (18) of the sedimentation tank.
9. A self-adaptive distributed sewage treatment method is characterized in that: the method comprises the following steps:
1) the electric control system presets the water quantity of the regulating tank and a corresponding operation program;
a) when the water amount in the regulating reservoir is small: the method comprises the following steps that a water inlet pump intermittently feeds water, a fan, a water production pump, a membrane aeration automatic valve, a first dosing pump and a second dosing pump are closed during water feeding, water is discharged from a water outlet weir port, the water inlet pump is closed after water feeding is finished, the water production pump and the membrane aeration automatic valve are closed, the fan is intermittently started and stopped at a low frequency, gas is supplied to a biochemical area and a return pipe, the fan is started and stopped for a period, the water feeding is repeated from beginning, and the first dosing pump and the second dosing pump are set to be automatically started to dose the water as required;
b) when the sewage amount in the regulating reservoir is equal, the water inlet pump continuously feeds water, the fan operates at low frequency during water feeding to supply gas for the biochemical region and the return pipe, the water outlet weir port discharges water, the water production pump and the membrane aeration automatic valve are closed, and the first dosing pump and the second dosing pump are set to automatically start dosing as required;
c) when the sewage amount in the regulating tank is large, the water inlet pump continuously feeds water, the water production pump and the membrane aeration automatic valve are opened, the fan continuously operates at high frequency during water feeding to supply gas for the biochemical region, the backflow pipe and the membrane tank, the membrane module filters the produced water, the water outlet of the clean water tank is set, and the first dosing pump and the second dosing pump are automatically opened to dose the medicine as required;
d) when the sewage water amount in the regulating tank is excessive, the water inlet pump continuously feeds water, the fan, the water production pump, the membrane aeration automatic valve, the first dosing pump and the second dosing pump are closed during water feeding, a precipitation process is adopted, and the water is discharged from the water outlet weir port;
2) monitoring the water quantity of the regulating tank, transmitting a water quantity signal to an electric control system, comparing the water quantity signal with preset data, and selecting a corresponding operation program;
3) repeating step 2) or repeating steps 1) and 2).
10. The self-adaptive decentralized sewage treatment method according to claim 9, characterized in that: the lowest running frequency of the fan is 30 Hz.
11. The self-adaptive decentralized sewage treatment method according to claim 9, characterized in that: the electric control system is provided with a remote module to realize remote adjustment of program operation parameters and real-time networking monitoring.
12. The self-adaptive decentralized sewage treatment method according to claim 9, characterized in that: the electric control system has a time delay reaction and an anti-interference mechanism for the liquid level signal of the water inlet pool.
13. The self-adaptive decentralized sewage treatment method according to claim 9, characterized in that: the operating liquid level of the film effluent is lower than the horizontal height of the effluent weir crest.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112624338A (en) * | 2020-12-15 | 2021-04-09 | 浙江清华长三角研究院 | Self-adaptive adjustment method for operation mode of rural domestic sewage treatment facility under rainstorm or rainy season situation |
| CN112897821A (en) * | 2021-04-07 | 2021-06-04 | 天津市华宇膜技术有限公司 | System and method suitable for distributed domestic sewage treatment |
| CN114428523A (en) * | 2021-12-31 | 2022-05-03 | 山西省交通新技术发展有限公司 | Water inlet regulation control method for distributed sewage treatment |
| CN115417502A (en) * | 2022-08-01 | 2022-12-02 | 清华苏州环境创新研究院 | Air-lift circulation precipitation separation type bioreactor and operation method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120018374A1 (en) * | 2009-04-09 | 2012-01-26 | Youfeng Sun | Sewage Treatment Process and System |
| CN207775019U (en) * | 2017-12-08 | 2018-08-28 | 石家庄国华环保科技有限公司 | MBR integral systems for rural dispersed sewage disposal |
| CN108929000A (en) * | 2018-08-23 | 2018-12-04 | 浙江开创环保科技股份有限公司 | A kind of Multifunctional integral sewage processing equipment and method |
| CN109133333A (en) * | 2018-08-09 | 2019-01-04 | 上海世浦泰膜科技有限公司 | A kind of membrane cisterna rolls the energy-saving MBR technique of aeration |
| CN208394886U (en) * | 2018-05-15 | 2019-01-18 | 嘉诚环保工程有限公司 | Automate country sewage integrated equipment for wastewater treatment |
| CN111039405A (en) * | 2019-12-23 | 2020-04-21 | 江苏中路工程技术研究院有限公司 | Integrated treatment device for fluctuating sewage in service area |
-
2020
- 2020-05-15 CN CN202010414965.0A patent/CN111573974A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120018374A1 (en) * | 2009-04-09 | 2012-01-26 | Youfeng Sun | Sewage Treatment Process and System |
| CN207775019U (en) * | 2017-12-08 | 2018-08-28 | 石家庄国华环保科技有限公司 | MBR integral systems for rural dispersed sewage disposal |
| CN208394886U (en) * | 2018-05-15 | 2019-01-18 | 嘉诚环保工程有限公司 | Automate country sewage integrated equipment for wastewater treatment |
| CN109133333A (en) * | 2018-08-09 | 2019-01-04 | 上海世浦泰膜科技有限公司 | A kind of membrane cisterna rolls the energy-saving MBR technique of aeration |
| CN108929000A (en) * | 2018-08-23 | 2018-12-04 | 浙江开创环保科技股份有限公司 | A kind of Multifunctional integral sewage processing equipment and method |
| CN111039405A (en) * | 2019-12-23 | 2020-04-21 | 江苏中路工程技术研究院有限公司 | Integrated treatment device for fluctuating sewage in service area |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112624338A (en) * | 2020-12-15 | 2021-04-09 | 浙江清华长三角研究院 | Self-adaptive adjustment method for operation mode of rural domestic sewage treatment facility under rainstorm or rainy season situation |
| CN112897821A (en) * | 2021-04-07 | 2021-06-04 | 天津市华宇膜技术有限公司 | System and method suitable for distributed domestic sewage treatment |
| CN114428523A (en) * | 2021-12-31 | 2022-05-03 | 山西省交通新技术发展有限公司 | Water inlet regulation control method for distributed sewage treatment |
| CN114428523B (en) * | 2021-12-31 | 2024-06-04 | 山西省交通新技术发展有限公司 | Inflow water adjusting and controlling method for decentralized sewage treatment |
| CN115417502A (en) * | 2022-08-01 | 2022-12-02 | 清华苏州环境创新研究院 | Air-lift circulation precipitation separation type bioreactor and operation method |
| CN115417502B (en) * | 2022-08-01 | 2023-09-19 | 清华苏州环境创新研究院 | Airlift loop precipitation separation type bioreactor and operation method |
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