CN222729640U - A domestic sewage treatment equipment in a highway service area with adjustable operation mode - Google Patents
A domestic sewage treatment equipment in a highway service area with adjustable operation mode Download PDFInfo
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- CN222729640U CN222729640U CN202520404519.XU CN202520404519U CN222729640U CN 222729640 U CN222729640 U CN 222729640U CN 202520404519 U CN202520404519 U CN 202520404519U CN 222729640 U CN222729640 U CN 222729640U
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- 239000010865 sewage Substances 0.000 title claims abstract description 99
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 97
- 238000005276 aerator Methods 0.000 claims description 42
- 238000000926 separation method Methods 0.000 claims description 19
- 239000012528 membrane Substances 0.000 claims description 18
- 238000004062 sedimentation Methods 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 238000005273 aeration Methods 0.000 abstract description 39
- 238000005265 energy consumption Methods 0.000 abstract description 10
- 230000008859 change Effects 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 24
- 239000003921 oil Substances 0.000 description 22
- 235000019198 oils Nutrition 0.000 description 22
- 230000008569 process Effects 0.000 description 20
- 230000006872 improvement Effects 0.000 description 13
- 230000009471 action Effects 0.000 description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 10
- 229910052760 oxygen Inorganic materials 0.000 description 10
- 239000001301 oxygen Substances 0.000 description 10
- 239000010802 sludge Substances 0.000 description 9
- 238000013461 design Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 230000001105 regulatory effect Effects 0.000 description 7
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 6
- 231100000719 pollutant Toxicity 0.000 description 6
- 230000002035 prolonged effect Effects 0.000 description 6
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000006396 nitration reaction Methods 0.000 description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 description 3
- 238000011272 standard treatment Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 241001148470 aerobic bacillus Species 0.000 description 1
- 239000010775 animal oil Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- -1 meanwhile Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model discloses a domestic sewage treatment device with an adjustable operation mode in a highway service area, which comprises an anaerobic tank, a first multifunctional tank, a second multifunctional tank, a third multifunctional tank and an MBR tank which are sequentially communicated, wherein a second aeration pipe, a third aeration pipe and a fourth aeration pipe are sequentially arranged at the bottoms of the anaerobic tank, the first multifunctional tank, the second multifunctional tank, the third multifunctional tank and the MBR tank, the air inlet ends of the aeration pipes are connected with a first fan through air inlet pipelines, and a second valve, a third valve and a fourth valve are sequentially arranged on the air inlet pipelines of the first multifunctional tank, the second multifunctional tank and the third multifunctional tank. The treatment equipment has the advantages of low energy consumption, low operation and maintenance cost, long service life, adjustable operation mode and the like, and when being used for treating domestic sewage in an expressway service area, the treatment equipment not only can automatically and timely adjust the operation mode according to the change condition of water quality and water quantity, but also can ensure that the quality of effluent is stable and reaches the standard, and simultaneously can obviously reduce the operation cost, and has high use value and good application prospect.
Description
Technical Field
The utility model belongs to the field of sewage treatment, and relates to expressway service area domestic sewage treatment equipment with an adjustable operation mode.
Background
Aiming at the problems that the domestic sewage in the expressway service area is widely and dispersedly discharged and cannot be intensively treated on a large scale, the water quality index of the effluent is difficult to achieve to reach the discharge standard and the like by the conventional equipment, the intelligent integrated treatment equipment for the domestic sewage in the expressway service area is provided, and comprises an anaerobic tank, an anoxic tank and an aerobic tank, wherein the upper part of the front end of the anaerobic tank is provided with a water inlet, the tail end of the anaerobic tank is sequentially separated by a baffle plate into the anoxic tank, the aerobic tank and an MBR tank, and the MBR reaction process is added at the tail end of the traditional A 2/O process, so that the treatment effect of the sewage is greatly improved, and the water quality of the effluent in the expressway service area after treatment meets the first-level A standard of pollutant discharge standard of urban sewage treatment plants (GB 18918-2002). In addition, the domestic sewage in the expressway service area has the characteristic that the water quality and the water quantity fluctuate greatly along with seasons, for example, the total nitrogen, ammonia nitrogen and total phosphorus in the domestic sewage in the expressway service area are generally about 2 times of that of the common domestic sewage, the total nitrogen, ammonia nitrogen and total phosphorus in the domestic sewage in the busy expressway service area are even 2-4 times of that of the common domestic sewage, meanwhile, COD cr, animal and vegetable oil and petroleum are also higher than those of the common domestic sewage, for example, the treated water quantity in the expressway service area is generally 50-200m 3/d, mainly the domestic sewage generated by activities of drivers and passengers entering the service area, and the randomness of vehicles entering the service area is large, so that the sewage quantity in different periods of the same service area also has great fluctuation, particularly on holidays, the vehicles entering the service area are generally 2 times or more of the average value, the sewage generation quantity in the service area is increased by corresponding times, and the summer sewage quantity in the same service area is higher than that in winter. However, aiming at the characteristics that domestic sewage in the expressway service area has large fluctuation of water quality and water quantity along with seasons, the intelligent integrated treatment equipment cannot adjust an operation mode according to the fluctuation of the water quality and the water quantity in the expressway service area, on one hand, the problem that the water quality of effluent cannot reach the standard stably is easily caused, on the other hand, under the conditions that the water quality is low and the water quantity is small, the effluent can only be discharged through an MBR membrane, a considerable part of energy consumption is caused by the suction and aeration of the MBR membrane, the energy consumption is high, the MBR membrane is easily polluted, the operation and maintenance cost of an MBR membrane system is increased, and the service life of the MBR membrane is reduced. Therefore, the expressway service area domestic sewage treatment equipment with low energy consumption, low operation and maintenance cost, long service life and adjustable operation mode is obtained, and has important significance for ensuring the stable and standard quality of effluent.
Disclosure of utility model
The utility model aims to solve the technical problems of overcoming the defects of the prior art and providing the expressway service area domestic sewage treatment equipment which is low in energy consumption, low in operation and maintenance cost, long in service life and adjustable in operation mode.
In order to solve the technical problems, the utility model adopts the following technical scheme:
An operation mode-adjustable expressway service area domestic sewage treatment device comprises an anaerobic tank, a first multifunctional tank, a second multifunctional tank, a third multifunctional tank and an MBR tank which are sequentially communicated;
the bottom parts of the anaerobic tank, the first multifunctional tank, the second multifunctional tank and the third multifunctional tank are sequentially provided with a first aerator pipe, a second aerator pipe, a third aerator pipe and a fourth aerator pipe, and the air inlet ends of the first aerator pipe, the second aerator pipe, the third aerator pipe and the fourth aerator pipe are all connected with a first fan through air inlet pipelines;
The air inlet pipeline between the first aerator pipe and the first fan is provided with a first valve, the air inlet pipeline between the second aerator pipe and the first fan is provided with a second valve, the air inlet pipeline between the third aerator pipe and the first fan is provided with a third valve, and the air inlet pipeline between the fourth aerator pipe and the first fan is provided with a fourth valve;
The bottom of the first multifunctional pool is communicated with the bottom of the second multifunctional pool through a first bypass pipe, a second bypass pipe is further arranged between the second multifunctional pool and the third multifunctional pool, the second bypass pipe is arranged below a water outlet of the second multifunctional pool and is not lower than the lowest liquid level of the second multifunctional pool in normal operation, and a sixth valve is arranged on the second bypass pipe.
As a further improvement of the technical scheme, a fifth valve is arranged on the first bypass pipe.
As a further improvement of the technical scheme, a stirring device is further arranged in the first multifunctional pool, and the stirring device is positioned at the bottom of the first multifunctional pool.
As a further improvement of the technical scheme, the third multifunctional pool is further provided with an overrunning pipe, and the overrunning pipe is arranged below the water outlet of the third multifunctional pool.
As a further improvement of the technical scheme, a seventh valve is arranged on the overrunning pipe.
As a further improvement of the technical scheme, a first submersible sewage pump is further arranged in the third multifunctional pool, the first submersible sewage pump is located at the bottom of the third multifunctional pool, and the first submersible sewage pump is connected with the anaerobic pool through a first return pipe.
As a further improvement of the technical scheme, the DO instrument is also arranged on the second multifunctional pool.
The technical scheme is further improved in that an MBR membrane is arranged in the MBR tank, and is positioned in the middle of the MBR tank, and the bottom of the MBR membrane is communicated with a second fan through a pipeline;
As a further improvement of the technical scheme, a second submersible sewage pump is further arranged in the MBR tank, the second submersible sewage pump is positioned at the bottom of the MBR tank, and the second submersible sewage pump is connected with the anaerobic tank through a second return pipe.
As a further improvement of the technical scheme, the water outlet of the MBR tank is also connected with a filter.
As a further improvement of the technical scheme, the anaerobic tank is also provided with a pH meter.
As a further improvement of the technical scheme, the anaerobic tank, the first multifunctional tank, the second multifunctional tank, the third multifunctional tank and the MBR tank are arranged in the same box body.
As a further improvement of the technical scheme, when the multifunctional pool is used, the first multifunctional pool is an anoxic pool or a facultative pool, the second multifunctional pool is an aerobic pool or an SBR pool, and the third multifunctional pool is an aerobic pool or a sedimentation pool.
The technical scheme is further improved by the aid of the three-stage oil separation tank, the anaerobic tank is further characterized by further comprising a grating tank, an oil separation tank and an adjusting tank which are sequentially communicated, wherein the grating tank, the oil separation tank and the adjusting tank are located outside the tank body, gratings are further arranged in the grating tank, the oil separation tank is a three-stage oil separation tank, a water outlet of the adjusting tank is communicated with a water inlet of the anaerobic tank, and a liquid level meter is further arranged on the adjusting tank.
Compared with the prior art, the utility model has the advantages that:
Aiming at the defects that the existing equipment is difficult to adapt to the deficiency of high energy consumption caused by high fluctuation of the quality and the quantity of the domestic sewage of the expressway, the quality of the discharged water is difficult to stably reach the standard and the like, the utility model creatively provides the domestic sewage treatment equipment with an adjustable operation mode in an expressway service area, which comprises an anaerobic tank, a first multifunctional tank, a second multifunctional tank, a third multifunctional tank and an MBR tank which are sequentially communicated, wherein the bottoms of the first multifunctional tank, the second multifunctional tank and the third multifunctional tank are provided with a second aerator pipe, a third aerator pipe and a fourth aerator pipe, the air inlet ends of the second aerator pipe, the third aerator pipe and the fourth aerator pipe are connected with a first fan through an air inlet pipeline, and the air inlet pipelines of the first multifunctional tank, the second multifunctional tank and the third multifunctional tank are sequentially provided with a second valve, a third valve and a fourth valve, the first multifunctional pool can be used as the oxygen-poor pool and the facultative pool to be functionally switched by using the first fan and the second aeration pipe to aerate the first multifunctional pool, and the second valve to adjust the aeration quantity of the second aeration pipe, the second multifunctional pool can be used as the aerobic pool and the SBR pool to be functionally switched by using the first fan and the third aeration pipe, and the third valve to adjust the aeration quantity of the third aeration pipe, the third multifunctional pool can be used to aerate the first fan and the fourth aeration pipe, and the fourth valve to adjust the aeration quantity of the fourth aeration pipe, so that the third multifunctional pool can be switched between the aerobic pool and the sedimentation pool to be timely adjusted under the common adjustment actions of the second valve, the third valve and the fourth valve, the sewage treatment modes of the first multifunctional pool, the second multifunctional pool and the third multifunctional pool can be timely adjusted, so that the equipment can finally run a plurality of combination processes, and the combination processes can be timely switched, further, under the combined action of the anaerobic pool, the first multifunctional pool, the second multifunctional pool, the third multifunctional pool and the MBR pool, the biochemical pool can always keep higher sludge concentration, the sludge age can be prolonged, the occupied area is small, and the denitrification can be better realized, meanwhile, the effluent quality can be ensured to meet the first-level A standard of pollutant emission standards of urban sewage treatment plants (GB 18918-2002), particularly, when the water quality is low or the water quantity is small, the combined process can be timely adjusted, so that the sewage can reach the standard after being treated by the combination of an anaerobic tank, a first multifunctional tank, a second multifunctional tank and a third multifunctional tank, and at the moment, the sewage does not pass through an MBR tank, can be directly discharged, or the working time of the MBR tank can be obviously reduced, the service life of an MBR membrane can be prolonged while the energy conservation is realized, and the operation cost is reduced. The treatment equipment has the advantages of low energy consumption, low operation and maintenance cost, long service life, adjustable operation mode and the like, and when being used for treating the domestic sewage in the expressway service area, the treatment equipment not only can automatically and timely adjust the operation mode according to the water quality and water quantity change condition of the expressway service area, but also can ensure that the water quality of the yielding water stably reaches the standard, and simultaneously can obviously reduce the operation cost, has high use value and good application prospect.
Drawings
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
FIG. 1 is a schematic diagram of a highway service area domestic sewage treatment apparatus with adjustable operation mode according to the present utility model.
Fig. 2 is a schematic flow chart corresponding to the operation mode of the device.
Fig. 3 is a schematic flow chart corresponding to the second operation mode of the device according to the present utility model.
Fig. 4 is a schematic flow chart corresponding to the third operation mode of the device of the present utility model.
Fig. 5 is a schematic flow chart corresponding to the fourth time of the operation mode of the device.
Legend description:
1. The device comprises a grid tank, 11, a grid, 2, an oil separation tank, 3, an adjusting tank, 31, a liquid level meter, 4, an anaerobic tank, 41, a first aeration pipe, 42, a first valve, 43, a pH meter, 5, a first multifunctional tank, 51, a second aeration pipe, 52, a second valve, 53, a stirring device, 54, a first bypass pipe, 55, a fifth valve, 6, a second multifunctional tank, 61, a third aeration pipe, 62, a third valve, 63, a DO meter, 64, a sixth valve, 7, a third multifunctional tank, 71, a fourth aeration pipe, 72, a fourth valve, 73, a seventh valve, 74, a first submersible sewage pump, 75, a first return pipe, 8, an MBR tank, 81, an MBR membrane, 82, a second submersible sewage pump, 83, a second return pipe, 84, a filter, 91, a first fan, 92 and a second fan.
Detailed Description
The utility model is further described below in connection with the drawings and the specific preferred embodiments, but the scope of protection of the utility model is not limited thereby.
In the following examples of the present utility model, unless otherwise specified, materials and instruments used were commercially available, equipment used was conventional equipment, and the data obtained were average values of three or more repeated experiments.
Examples
As shown in FIG. 1, the operation mode-adjustable domestic sewage treatment equipment for the expressway service area comprises an anaerobic tank 4, a first multifunctional tank 5, a second multifunctional tank 6, a third multifunctional tank 7 and an MBR tank 8 which are sequentially communicated, wherein a first aerator pipe 41, a second aerator pipe 51, a third aerator pipe 61 and a fourth aerator pipe 71 are sequentially arranged at the bottom of the anaerobic tank 4, the first multifunctional tank 5, the second multifunctional tank 6 and the third multifunctional tank 7, the air inlet ends of the first aerator pipe 41, the second aerator pipe 51, the third aerator pipe 61 and the fourth aerator pipe 71 are respectively connected with a first fan 91 through air inlet pipelines, a first valve 42 is arranged on the air inlet pipeline between the first aerator pipe 41 and the first fan 91, a second valve 52 is arranged on the air inlet pipeline between the second aerator pipe 51 and the first fan 91, a third valve 62 is arranged on the air inlet pipeline between the third aerator pipe 61 and the first fan 91, and a fourth valve 72 is arranged on the air inlet pipeline between the fourth aerator pipe 71 and the first fan 91.
In the embodiment, a second aeration pipe 51, a third aeration pipe 61 and a fourth aeration pipe 71 are arranged at the bottom of a first multifunctional tank 5, a second multifunctional tank 6 and a third multifunctional tank 7, the air inlet ends of the second aeration pipe 51, the third aeration pipe 61 and the fourth aeration pipe 71 are connected with a first fan 91 through air inlet pipelines, a second valve 52, a third valve 62 and a fourth valve 72 are sequentially arranged on the air inlet pipelines of the first multifunctional tank 5, the second multifunctional tank 6 and the third multifunctional tank 7, the first multifunctional tank 5 and the second multifunctional tank 51 are aerated by utilizing the first fan 91 and the second aeration pipe 51, the first multifunctional tank 5 can be used as an anoxic tank and an oxygen-doubling tank, the second multifunctional tank 6 is aerated by utilizing the first fan 91 and the third aeration pipe 61, the third air inlet ends of the third aeration pipe 61 are regulated by utilizing the third valve 62, the second multifunctional tank 6 and the SBR valve 61 can be realized, the first multifunctional tank 5 and the fourth multifunctional tank 7 can be combined, the second multifunctional tank 7 can be aerated by utilizing the third valve 71, the fourth multifunctional tank 71 and the fourth aeration pipe 72 can be regulated by utilizing the third valve 71, the first multifunctional tank 7 and the fourth aeration pipe 51 can be combined, the aeration process can be realized, and the second multifunctional tank can be combined, and the aeration process can be realized by the fourth and the fourth multifunctional tank 7 can be regulated by utilizing the fourth valve 71 and the fourth valve 71, further, under the combined action of the anaerobic tank 4, the first multifunctional tank 5, the second multifunctional tank 6, the third multifunctional tank 7 and the MBR tank 8, not only can the biochemical tank always keep higher sludge concentration, but also the sludge age can be prolonged, the occupied area is small, the denitrification can be better realized, meanwhile, the effluent quality can be ensured to meet the first-level A standard of pollutant emission standard of urban sewage treatment plants (GB 18918-2002), in particular, under the condition of lower water quality or lower water quantity, the combined process can be adjusted in time, so that the sewage can reach the standard after being treated by the combination of the anaerobic tank 4, the first multifunctional tank 5, the second multifunctional tank 6 and the third multifunctional tank 7, at the moment, the sewage does not pass through the MBR tank 8, the sewage can be directly discharged outwards, or the working time of the MBR tank 8 can be obviously reduced, the service life of an MBR membrane can be prolonged while the energy conservation is realized, and the operation cost is favorable to be reduced. The treatment equipment has the advantages of low energy consumption, low operation and maintenance cost, long service life, adjustable operation mode and the like, and when being used for treating the domestic sewage in the expressway service area, the treatment equipment not only can automatically and timely adjust the operation mode according to the water quality and water quantity change condition of the expressway service area, but also can ensure that the water quality of the yielding water stably reaches the standard, and simultaneously can obviously reduce the operation cost, has high use value and good application prospect.
In the embodiment, the bottom of the first multifunctional pool 5 is communicated with the bottom of the second multifunctional pool 6 through a first bypass pipe 54, and a fifth valve 55 is arranged on the first bypass pipe 54. In the utility model, by the combined action of the first bypass pipe 54 and the fifth valve 55, a proper amount of activated sludge from the second multifunctional pool 6 can be supplemented into the first multifunctional pool 5, so that the high sludge concentration in the first multifunctional pool 5 can be ensured all the time, the sludge age can be prolonged, meanwhile, various microorganisms (such as aerobic bacteria, facultative bacteria and anaerobic bacteria) in the first multifunctional pool 5 can be ensured, and finally the denitrification effect of the first multifunctional pool 5 serving as an anoxic pool or an facultative pool can be improved.
In this embodiment, a stirring device 53, specifically a submersible mixer, is further disposed in the first multifunctional pool 5, and the stirring device 53 is located at the bottom of the first multifunctional pool 5. In the present utility model, the provision of the stirring device 53 contributes to an improvement in the mixing effect of activated sludge and sewage, and thus contributes to an improvement in the denitrification effect when the first multifunctional tank 5 is used as an anoxic tank or a facultative tank.
In this embodiment, a second bypass pipe (not shown in the figure) is further disposed between the second multifunctional pool 6 and the third multifunctional pool 7, the second bypass pipe is disposed below the water outlet of the second multifunctional pool 6 and is not lower than the lowest liquid level when the second multifunctional pool 6 is operating normally, and a sixth valve 64 is disposed on the second bypass pipe. In the utility model, the second bypass pipe is arranged below the water outlet of the second multifunctional tank 6, so that the switching of the second multifunctional tank 6 on the functions of the sedimentation tank is realized, the switching of the third multifunctional tank 7 on the functions of the sedimentation tank is realized, the intermittent water inlet mode is operated, on one hand, the requirements that the quality and the quantity of sewage are lower than design values can be met, on the other hand, the supernatant fluid treated by the second multifunctional tank 6 is discharged into the third multifunctional tank 7 for sedimentation treatment, after mud-water separation, all indexes of the discharged water can meet the discharge requirement, the discharged water can be directly discharged outwards, and when all indexes of the discharged water do not meet the discharge requirement, the discharged water is continuously input into the MBR tank for membrane biological treatment, the standard treatment of sewage can be realized in a shorter time, the working time of the MBR tank is obviously reduced, and the energy consumption is reduced and the service period of the MBR membrane is prolonged.
In this embodiment, under the combined action of the first bypass pipe and the second bypass pipe, on one hand, the multifunctional adjustment of the first multifunctional pool, the second multifunctional pool and the third multifunctional pool is more beneficial to be realized, so that the equipment can quickly operate different combined processes, the equipment can timely cope with the process adjustment required by the change of different water qualities and water quantities, on the other hand, the functional effects of the first multifunctional pool, the second multifunctional pool and the third multifunctional pool are also more beneficial to be enhanced, the overall treatment effect of the equipment on sewage of different water qualities and water quantities is obviously improved, the equipment can quickly realize the standard treatment of sewage of different water qualities and water quantities, and finally, the equipment can quickly adapt to the change of the water qualities and the water quantities, and can promote the standard treatment of sewage of different water qualities and water quantities under the condition of lower cost.
In the embodiment, the third multifunctional pool 7 is also provided with an overrunning pipe, the overrunning pipe is arranged below the water outlet of the third multifunctional pool 7, and the overrunning pipe is provided with a seventh valve 73. In the utility model, the overrunning pipe is arranged below the water outlet of the third multifunctional pool 7, so that the effluent water with various indexes meeting the requirements in the third multifunctional pool 7 can be discharged outwards.
In this embodiment, the first valve, the second valve, the third valve, the fourth valve, the fifth valve, the sixth valve and the seventh valve are all electric valves.
In the embodiment, a first submersible sewage pump 74 is further arranged in the third multifunctional pond 7, the first submersible sewage pump 74 is positioned at the bottom of the third multifunctional pond 7, and the first submersible sewage pump 74 is connected with the anaerobic pond 4 through a first return pipe 75. In the utility model, the first submersible sewage pump 74 is arranged at the bottom of the third multifunctional pond 7, and the digestion liquid of the third multifunctional pond 7 can be used as a carbon source substrate and flows back to the anaerobic pond 4 through the first return pipe 75, so that the anaerobic pond can always maintain a proper C/N ratio, and the effective degradation of organic pollutants in sewage can be ensured.
In this embodiment, the second multifunctional pool 6 is further provided with a DO meter 63, and the dissolved oxygen concentration of the second multifunctional pool 6 during operation is detected and displayed in real time by the DO meter 63, which is beneficial to adjusting the aeration rate by the frequency conversion of the first fan 91 and ensuring the stable operation of the biochemical system.
In this embodiment, an MBR membrane 81 is disposed in the MBR tank 8, the MBR membrane 81 is located in the middle of the MBR tank 8, and a second fan 92 is communicated with the bottom of the MBR membrane 81 through a pipeline.
In this embodiment, the first fan 91 and the second fan 92 are variable frequency fans.
In this embodiment, a second submersible sewage pump 82 is further disposed in the MBR tank 8, the second submersible sewage pump 82 is located at the bottom of the MBR tank 8, and the second submersible sewage pump 82 is connected with the anaerobic tank 4 through a second return pipe 83. In the utility model, the second submersible sewage pump 82 is arranged at the bottom of the MBR tank 8, and the activated sludge in the MBR tank can be used as a carbon source substrate and flows back to the anaerobic tank 4 through the second return pipe 83, so that the anaerobic tank can always maintain a proper C/N ratio, and the effective degradation of organic pollutants in sewage in the anaerobic tank can be ensured.
In this embodiment, the water outlet of the MBR tank 8 is further connected with a filter 84, and specifically, the filter 84 is a filter with a self-cleaning function.
In this embodiment, the anaerobic tank 4 is further provided with a pH meter 43, and the pH of the anaerobic tank during operation is detected and displayed in real time by the pH meter 43, so that the chemical can be timely added and the alkalinity required by the biochemical system can be adjusted.
In this embodiment, the anaerobic tank 4, the first multifunctional tank 5, the second multifunctional tank 6, the third multifunctional tank 7 and the MBR tank 8 are installed in the same box body, so that the installation is convenient, the land consumption can be saved, and the use cost is lower.
In this embodiment, when in use, the first multifunctional pool 5 is an anoxic pool or a facultative pool, the second multifunctional pool 6 is an aerobic pool or an SBR pool, and the third multifunctional pool 7 is an aerobic pool or a sedimentation pool.
In this embodiment, still include grid pond 1, oil removal pond 2 and equalizing basin 3 that communicate in proper order, and grid pond 1, oil removal pond 2 and equalizing basin 3 are located the outside of box.
In this embodiment, the grille pool 1 is further provided with a grille 11.
In this embodiment, the oil separation tank 2 is a three-stage oil separation tank.
In the embodiment, the water outlet of the regulating tank 3 is communicated with the water inlet of the anaerobic tank 4, and the regulating tank 3 is also provided with a liquid level meter 31.
In this embodiment, when the apparatus is used for treating domestic sewage in a highway service area, according to the change conditions of high water quality and water quantity, the following modes are selected to treat sewage, and the specific steps are as follows:
Firstly, when the service area is in a busy period, the general water quality is close to a design value, the water quantity is more than or equal to 80% of the design water quantity, and the first mode is operated, as shown in fig. 2, namely, an operation mode of an AO+MBR process is adopted, at the moment, a sixth valve is closed, a first valve, a second valve, a third valve, a fourth valve, a fifth valve and a seventh valve are opened, the main functions of the first multifunctional pool are facultative pools, the second multifunctional pool and the third multifunctional pool are all aerobic pools, and specifically:
The method comprises the steps of firstly inputting domestic sewage in a highway service area into a grating pool, removing coarse suspended matters after grating treatment, inputting the sewage after grating treatment into an oil separation pool, removing floating oil, inputting the sewage into an adjusting pool after the floating oil is removed by the oil separation pool, adjusting the sewage water quality to meet the water quality requirement of water inlet of an anaerobic pool, and sequentially inputting the sewage into the anaerobic pool, a first multifunctional pool, a second multifunctional pool, a third multifunctional pool and an MBR pool for treatment after the water quality and the water quantity are balanced by the adjusting pool.
In the operation process of the anaerobic tank, when the pH value is lower than 6, sodium carbonate can be added into the anaerobic tank, so that the alkalinity consumed by the nitration reaction is adjusted.
In the operation process of the anaerobic tank, the first multifunctional tank, the second multifunctional tank and the third multifunctional tank, the first fan is started, and under the action of an electric valve capable of automatically adjusting flow, the aeration amount is switched and adjusted at will according to operation requirements, so that the dissolved oxygen in the anaerobic tank is controlled to be less than or equal to 0.2mg/L, the dissolved oxygen in the first multifunctional tank is controlled to be 0.5-1.0mg/L, and the dissolved oxygen in the second multifunctional tank and the third multifunctional tank is controlled to be 1.5-2.0mg/L.
In the operation process of the MBR tank, the second fan is started, and under the action of an electric valve capable of automatically adjusting the flow, the aeration amount is switched and adjusted at will according to the operation requirement, so that substances such as ammonia nitrogen, COD cr and the like in the MBR tank are thoroughly degraded, the effluent water can meet the emission standard, and particularly, the effluent water is ensured to meet the first-level A standard of pollutant emission standard of urban sewage treatment plants (GB 18918-2002).
Secondly, when the service area is in a busy period, the general water quality is close to a design value, the water quantity is 1/2-4/5 of the design water quantity, and the operation is carried out in a mode II, as shown in fig. 3, namely, an operation mode of an A 2 O+MBR process is adopted, at the moment, a second valve, a fifth valve, a sixth valve and a seventh valve are closed, a first valve, a third valve and a fourth valve are opened, the first multifunctional pool is an anoxic pool, and the second multifunctional pool and the third multifunctional pool are all aerobic pools, and specifically:
The method comprises the steps of firstly inputting domestic sewage in a highway service area into a grating pool, removing coarse suspended matters after grating treatment, inputting the sewage after grating treatment into an oil separation pool, removing floating oil, inputting the sewage into an adjusting pool after the floating oil is removed by the oil separation pool, adjusting the sewage water quality to meet the water quality requirement of water inlet of an anaerobic pool, and sequentially inputting the sewage into the anaerobic pool, a first multifunctional pool, a second multifunctional pool, a third multifunctional pool and an MBR pool for treatment after the water quality and the water quantity are balanced by the adjusting pool.
In the operation process of the anaerobic tank, when the pH value is lower than 6, sodium carbonate can be added into the anaerobic tank, so that the alkalinity consumed by the nitration reaction is adjusted.
In the operation process of the anaerobic tank, the first multifunctional tank, the second multifunctional tank and the third multifunctional tank, the first fan is started, and under the action of an electric valve capable of automatically adjusting flow, the aeration amount is switched and adjusted at will according to operation requirements, so that the dissolved oxygen in the anaerobic tank is controlled to be less than or equal to 0.2mg/L, the dissolved oxygen in the first multifunctional tank is controlled to be less than or equal to 0.5mg/L, and the dissolved oxygen in the second multifunctional tank and the third multifunctional tank is controlled to be 1.5-2.0mg/L.
In the operation process of the MBR tank, the second fan is started, and under the action of an electric valve capable of automatically adjusting the flow, the aeration amount is switched and adjusted at will according to the operation requirement, so that substances such as ammonia nitrogen, COD cr and the like in the MBR tank are thoroughly degraded, the effluent water can meet the emission standard, and particularly, the effluent water is ensured to meet the first-level A standard of pollutant emission standard of urban sewage treatment plants (GB 18918-2002).
Thirdly, when the service area is in a non-busy period, the quality and the quantity of the inflow water are generally lower than the design value, the quantity of the inflow water is 1/2-4/5 of the design quantity of the inflow water, and the operation in the mode III is adopted, as shown in fig. 4, at the moment, the second valve, the fourth valve and the fifth valve are closed, the first valve and the third valve are opened, the first multifunctional pool is an anoxic pool, the second multifunctional pool is an SBR pool, and the third multifunctional pool is a sedimentation pool, and specifically comprises:
The method comprises the steps of firstly inputting domestic sewage in a highway service area into a grating pool, removing coarse suspended matters after grating treatment, inputting the sewage after grating treatment into an oil separation pool, removing floating oil, inputting the sewage into an adjusting pool after the floating oil is removed by the oil separation pool, adjusting the sewage water quality to meet the water quality requirement of water inlet of an anaerobic pool, and sequentially inputting the sewage into the anaerobic pool, a first multifunctional pool, a second multifunctional pool, a third multifunctional pool and an MBR pool for treatment after the water quality and the water quantity are balanced by the adjusting pool.
In the operation process of the anaerobic tank, when the pH value is lower than 6, sodium carbonate can be added into the anaerobic tank, so that the alkalinity consumed by the nitration reaction is adjusted.
In the operation process of the anaerobic tank, the first multifunctional tank, the second multifunctional tank and the third multifunctional tank, the first fan is started, under the action of an electric valve capable of automatically adjusting flow, the aeration amount is switched and adjusted at will according to operation requirements, so that the dissolved oxygen in the anaerobic tank is controlled to be less than or equal to 0.2mg/L, the dissolved oxygen in the first multifunctional tank is controlled to be less than or equal to 0.5mg/L, the dissolved oxygen in the second multifunctional tank is controlled to be 1.5-2.0mg/L, an intermittent treatment method is adopted in the second multifunctional tank (SBR tank), wherein aeration is carried out for 3h, sedimentation is carried out for 50min, then the sixth valve is opened for draining, supernatant in the second multifunctional tank is drained into the third multifunctional tank (sedimentation tank), the draining time is 30min, and the next period is entered after the draining is finished.
In the operation process of the MBR tank, after sewage in a third multifunctional tank (sedimentation tank) is input into the MBR tank, a second fan is started, and the aeration amount is switched and regulated at will according to operation requirements under the action of an electric valve capable of automatically regulating flow, so that substances such as ammonia nitrogen, COD cr and the like in the MBR tank are thoroughly degraded, the effluent water can meet the emission standard, and particularly, the effluent water is ensured to meet the first-level A standard of pollutant emission standard of urban sewage treatment plants (GB 18918-2002).
And in the fourth mode, when the effluent quality index meets the emission requirement after being treated by the anaerobic tank, the first multifunctional tank, the second multifunctional tank and the third multifunctional tank, the fourth mode can be operated, as shown in fig. 5, and specifically, the seventh valve is opened to directly discharge the effluent reaching the standard.
As can be seen from the results, the treatment equipment has the advantages of low energy consumption, low operation and maintenance cost, long service life, adjustable operation mode and the like, and can automatically and timely adjust the operation mode according to the water quality and water quantity change condition of the expressway service area when being used for treating the domestic sewage of the expressway service area, ensure that the water quality of the effluent reaches the standard stably, obviously reduce the operation cost, and has high use value and good application prospect.
The above examples are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited to the above examples. All technical schemes belonging to the concept of the utility model belong to the protection scope of the utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.
Claims (9)
1. The expressway service area domestic sewage treatment equipment with the adjustable operation mode is characterized by comprising an anaerobic tank (4), a first multifunctional tank (5), a second multifunctional tank (6), a third multifunctional tank (7) and an MBR tank (8) which are sequentially communicated;
The bottom of the anaerobic tank (4), the bottom of the first multifunctional tank (5), the bottom of the second multifunctional tank (6) and the bottom of the third multifunctional tank (7) are sequentially provided with a first aerator pipe (41), a second aerator pipe (51), a third aerator pipe (61) and a fourth aerator pipe (71), and the air inlet ends of the first aerator pipe (41), the second aerator pipe (51), the third aerator pipe (61) and the fourth aerator pipe (71) are connected with a first fan (91) through air inlet pipelines;
A first valve (42) is arranged on an air inlet pipeline between the first aerator pipe (41) and the first fan (91), a second valve (52) is arranged on an air inlet pipeline between the second aerator pipe (51) and the first fan (91), a third valve (62) is arranged on an air inlet pipeline between the third aerator pipe (61) and the first fan (91), and a fourth valve (72) is arranged on an air inlet pipeline between the fourth aerator pipe (71) and the first fan (91);
The bottom of the first multifunctional pool (5) is communicated with the bottom of the second multifunctional pool (6) through a first bypass pipe (54), a second bypass pipe is further arranged between the second multifunctional pool (6) and the third multifunctional pool (7), the second bypass pipe is arranged below a water outlet of the second multifunctional pool (6) and is not lower than the lowest liquid level of the second multifunctional pool (6) in normal operation, and a sixth valve (64) is arranged on the second bypass pipe.
2. The expressway service area domestic sewage treatment apparatus with adjustable operation mode according to claim 1, wherein a fifth valve (55) is provided on the first bypass pipe (54).
3. The expressway service area domestic sewage treatment equipment with the adjustable operation mode according to claim 2, wherein a stirring device (53) is further arranged in the first multifunctional pool (5), and the stirring device (53) is located at the bottom of the first multifunctional pool (5).
4. The expressway service area domestic sewage treatment device with the adjustable operation mode according to claim 3, wherein an overrun pipe is further arranged on the third multifunctional pool (7), the overrun pipe is arranged below a water outlet of the third multifunctional pool (7), and a seventh valve (73) is arranged on the overrun pipe.
5. The expressway service area domestic sewage treatment equipment with the adjustable operation mode according to claim 4 is characterized in that a first submersible sewage pump (74) is further arranged in the third multifunctional pool (7), the first submersible sewage pump (74) is positioned at the bottom of the third multifunctional pool (7), and the first submersible sewage pump (74) is connected with the anaerobic pool (4) through a first return pipe (75);
And a DO instrument (63) is also arranged on the second multifunctional pool (6).
6. The expressway service area domestic sewage treatment device with the adjustable operation mode according to claim 4 is characterized in that an MBR membrane (81) is arranged in the MBR tank (8), the MBR membrane (81) is positioned in the middle of the MBR tank (8), and a second fan (92) is communicated with the bottom of the MBR membrane (81) through a pipeline;
A second submersible sewage pump (82) is further arranged in the MBR tank (8), the second submersible sewage pump (82) is positioned at the bottom of the MBR tank (8), and the second submersible sewage pump (82) is connected with the anaerobic tank (4) through a second return pipe (83);
and a water outlet of the MBR tank (8) is also connected with a filter (84).
7. The expressway service area domestic sewage treatment apparatus with adjustable operation mode according to claim 1, wherein the anaerobic tank (4) is further provided with a pH meter (43).
8. The expressway service area domestic sewage treatment equipment with the adjustable operation mode according to any one of claims 1-7, wherein the anaerobic tank (4), the first multifunctional tank (5), the second multifunctional tank (6), the third multifunctional tank (7) and the MBR tank (8) are arranged in the same box body, and when in use, the first multifunctional tank (5) is an anoxic tank or an facultative tank, the second multifunctional tank (6) is an aerobic tank or an SBR tank, and the third multifunctional tank (7) is an aerobic tank or a sedimentation tank.
9. The highway service area domestic sewage treatment equipment with the adjustable operation mode according to claim 8 is characterized by further comprising a grating pool (1), an oil separation pool (2) and an adjusting pool (3) which are sequentially communicated, wherein the grating pool (1), the oil separation pool (2) and the adjusting pool (3) are positioned outside the box body, a grating (11) is further arranged in the grating pool (1), the oil separation pool (2) is a three-stage oil separation pool, a water outlet of the adjusting pool (3) is communicated with a water inlet of the anaerobic pool (4), and a liquid level meter (31) is further arranged on the adjusting pool (3).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN120717661A (en) * | 2025-08-29 | 2025-09-30 | 湖南湘牛环保实业有限公司 | An intelligent treatment system and method for domestic sewage in highway service areas |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN120717661A (en) * | 2025-08-29 | 2025-09-30 | 湖南湘牛环保实业有限公司 | An intelligent treatment system and method for domestic sewage in highway service areas |
| CN120717661B (en) * | 2025-08-29 | 2025-12-26 | 湖南湘牛环保实业有限公司 | Intelligent treatment system and method for domestic sewage in expressway service area |
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