CN114516703A - Treatment device and treatment method suitable for rural sewage treatment - Google Patents
Treatment device and treatment method suitable for rural sewage treatment Download PDFInfo
- Publication number
- CN114516703A CN114516703A CN202111637120.9A CN202111637120A CN114516703A CN 114516703 A CN114516703 A CN 114516703A CN 202111637120 A CN202111637120 A CN 202111637120A CN 114516703 A CN114516703 A CN 114516703A
- Authority
- CN
- China
- Prior art keywords
- water
- treatment
- reaction tank
- unit
- mud
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000011282 treatment Methods 0.000 title claims abstract description 89
- 239000010865 sewage Substances 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 278
- 244000005700 microbiome Species 0.000 claims abstract description 59
- 238000000926 separation method Methods 0.000 claims abstract description 58
- 238000005842 biochemical reaction Methods 0.000 claims abstract description 57
- 238000004062 sedimentation Methods 0.000 claims abstract description 33
- 239000000945 filler Substances 0.000 claims abstract description 7
- 239000010802 sludge Substances 0.000 claims description 54
- 230000007246 mechanism Effects 0.000 claims description 41
- 230000001105 regulatory effect Effects 0.000 claims description 26
- 230000000813 microbial effect Effects 0.000 claims description 24
- 230000000712 assembly Effects 0.000 claims description 23
- 238000000429 assembly Methods 0.000 claims description 23
- 238000006243 chemical reaction Methods 0.000 claims description 22
- 238000007599 discharging Methods 0.000 claims description 19
- 238000005192 partition Methods 0.000 claims description 19
- 238000005352 clarification Methods 0.000 claims description 12
- 239000003638 chemical reducing agent Substances 0.000 claims description 11
- 238000011221 initial treatment Methods 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 5
- 238000001556 precipitation Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000008859 change Effects 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 238000012546 transfer Methods 0.000 abstract description 2
- 239000012528 membrane Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 26
- 230000008569 process Effects 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 238000003911 water pollution Methods 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/043—Treatment of partial or bypass streams
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention
-
- 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
-
- 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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention belongs to the technical field of sewage treatment, and particularly relates to a treatment device and a treatment method suitable for rural sewage treatment. The inclined plate oil separation sedimentation tank finishes oil removal and primary sedimentation of sewage, the biochemical reaction tank can control the rotation speed of the spherical microorganism attachment component so as to control the thickness of a biological membrane, meanwhile, a guide rail fixed on the wall of the biochemical reaction tank can be adjusted to adjust the submerging depth, and appropriate anaerobic, anoxic and aerobic conditions are created according to the requirement of water quality treatment so as to adapt to the change of the quality of the sewage. The biochemical reaction tank can also change the serial and parallel running modes according to the requirement, and the running is more flexible. The invention has relatively simple structure, convenient operation, small occupied area and good adaptability to the fluctuation of water quality and water quantity; the spherical microorganism attachment assembly is light and corrosion resistant, and the mass transfer effect is deepened by the internal oval filler.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to a treatment device and a treatment method suitable for rural sewage treatment.
Background
At present, with the rapid development of rural economy, the living standard of rural residents is remarkably improved, the total water consumption and sewage yield of rural families are also increased year by year, but pollution treatment facilities matched with the rural areas are not in place, and the water pollution problem generated by rural sewage gradually draws attention of people.
Rural sewage has the characteristics of wide distribution, unsound pipe network collection systems, lack of treatment facilities, large fluctuation of water quality and water quantity and the like, the concentration difference of pollutants such as total nitrogen, ammonia nitrogen, phosphorus, organic matters and the like in the sewage is large, the rural sewage lacks of perfect collection and treatment systems, most untreated rural sewage is directly discharged into nearby rivers, the environmental load is increased, and the water environment is obviously influenced when the self-purification capacity of a water area is exceeded.
At present, rural sewage treatment equipment is mainly concentrated on facilities such as an integrated contact oxidation bed and the like, and is characterized in that a primary sedimentation tank, a contact oxidation tank and a secondary sedimentation tank are combined into a whole, so that the equipment is high in integration degree and has a certain water treatment effect. But the integrated contact oxidation bed has the defects of low sludge removal rate, lack of special sludge discharge facilities and the like, has single process condition, is difficult to efficiently remove other organic matter components such as oil and fat which are difficult to degrade in water, and is easy to show the problems of high N, P, CODCr content in water and the like.
In view of the problems of low water treatment efficiency, low automation degree, low sludge discharge efficiency and the like of the prior rural water pollution treatment equipment. The invention provides a treatment process and equipment suitable for rural sewage, the development of a sewage treatment system in rural areas can be promoted by the equipment, the effluent quality can meet the quality standard of domestic miscellaneous water, and the effluent can be used for washing vehicles, irrigating, discharging water bodies and the like in rural household.
Disclosure of Invention
The invention provides a treatment device and a treatment method suitable for rural sewage treatment, so as to realize rural sewage treatment and full resource utilization.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a processing apparatus suitable for rural sewage treatment, includes that the swash plate that arranges in proper order along the rivers flow direction separates oil sedimentation tank, biochemical reaction pond, secondary mud-water separation mechanism and clean water basin, wherein:
the inlet end of the inclined plate oil separation sedimentation tank is connected with domestic sewage, and the outlet end of the inclined plate oil separation sedimentation tank is connected with the biochemical reaction tank;
the biochemical reaction tank comprises a reaction tank body, a submerging depth adjusting mechanism, a spherical microorganism attachment unit and a clarification unit; the bottom surface of the reaction tank body is in an arc shape which is sunken towards the direction of the internal environment, and second sludge discharge pipes for discharging sludge are uniformly arranged at two lowest positions of the arc bottom surface;
the submerging depth adjusting mechanism comprises a partition plate and an adjusting part, wherein the partition plate divides the internal space of the reaction tank body into a spherical microorganism attaching unit and a clarifying unit which are distributed up and down in sequence;
the adjusting part is arranged outside the reaction tank body and connected with the partition plate, and the adjusting part can drive the partition plate to move up and down along the height direction of the reaction tank body;
the spherical microorganism attachment unit is an area for treating sewage discharged by the inclined plate oil separation sedimentation tank;
the clarification unit is an area for treating sewage subjected to the microbial treatment of the spherical microbial attachment unit;
the secondary sludge-water separation mechanism is funnel-shaped and is arranged at the outlet end of the biochemical reaction tank, the included angle between a bus of a point on the opening of the secondary sludge-water separation mechanism and a horizontal line is alpha, the included angle between the bus of a point on the opening of the secondary sludge-water separation mechanism, which is farthest away from the point, and the horizontal line is beta, and alpha is less than beta;
and the clean water tank receives water discharged by the secondary mud-water separation mechanism.
As a further preferable aspect of the present invention, the inclined plate oil-separation sedimentation tank comprises a water inlet unit, an inclined plate oil-removal sedimentation unit, a sludge unit and a water outlet unit, wherein:
the water inlet unit receives domestic sewage;
the sloping plate oil removal and precipitation unit comprises a sloping plate, the sloping plate is positioned below the water inlet unit, the sloping plate is used for carrying out mud-water separation on sewage entering from the water inlet unit, the separated water is positioned above the sloping plate, and the separated sludge enters the sludge unit below the sloping plate;
the sludge unit comprises a plurality of triangular sludge discharging hoppers and a plurality of first sludge discharging pipes, the sludge discharging hoppers are uniformly arranged on the bottom surface of the inclined plate oil-separating sedimentation tank, the first sludge discharging pipes are arranged at the bottoms of the sludge discharging hoppers, and sludge separated by the inclined plates falls into the sludge discharging hoppers and enters the first sludge discharging pipes;
and the water outlet unit discharges the water which is separated by the inclined plate above the inclined plate into the biochemical reaction tank.
As a further preferred aspect of the present invention, the reaction tank body includes a first water inlet, a second water inlet, a third water inlet, a first flow guide plate, a second flow guide plate, a first regulating valve, a second regulating valve, and a discharge port, wherein:
the first water inlet, the second water inlet and the third water inlet are sequentially arranged on the wall of the biochemical reaction tank at equal intervals, and the first water inlet, the second water inlet and the third water inlet are all connected with the water outlet unit;
the first guide plate is arranged along the flow direction of water flow and is arranged between the first water inlet and the second water inlet, and a first water passing channel is formed between the first guide plate and one pool wall of the biochemical reaction pool opposite to the first guide plate;
the second guide plate is arranged along the flow direction of water flow and is arranged between the second water inlet and the third water inlet, a second water passing channel is formed between the second guide plate and the first guide plate, and a third water passing channel is formed between the second guide plate and one opposite pool wall of the biochemical reaction pool;
the end, far away from the first water inlet, of the first guide plate is provided with an opening, so that the first water passing gallery and the second water passing gallery are always communicated;
the first regulating valve is installed at one end, close to the second water inlet, of the second guide plate, and the first regulating valve controls communication between the second water passing gallery and the third water passing gallery;
the second regulating valve is installed at one end, far away from the second water inlet, of the second guide plate, and the second water passing gallery is controlled to be communicated with the discharge port through the second regulating valve;
the discharge port is opened on the baffle, sets up the position and does the third is crossed water corridor and is kept away from one side at the third inlet, the discharge port with clarification unit intercommunication.
As a further preferred embodiment of the present invention, the spherical microorganism attachment unit comprises three rotating shafts and several spherical microorganism attachment assemblies, wherein:
a rotating shaft is arranged in each of the first water passing gallery, the second water passing gallery and the third water passing gallery;
a plurality of spherical microorganism attachment assemblies are arranged on each rotating shaft at intervals.
As a further preferred aspect of the present invention, the adjusting portion includes a guide rail, a movable platform, a three-motor, and a three-speed reducer, wherein:
the guide rail is arranged along the height direction of the biochemical reaction tank;
the movable platform is fixedly connected with the partition plate and moves up and down along the guide rail;
one end of each rotating shaft, which is far away from the inclined plate oil separation sedimentation tank, is connected with one motor;
and one speed reducer is arranged between the speed reducer and the rotating shaft.
As a further preferred aspect of the present invention, the spherical microbial attachment member is spherical, a center hole for stringing the spherical microbial attachment member on the rotating shaft is formed in the center of the spherical microbial attachment member, and a plurality of elliptic fillers are disposed inside the spherical microbial attachment member.
The mud-storing mechanism further preferably comprises a cylindrical mud-storing part, and the mud-storing part is arranged at the bottom of the secondary mud-water separating mechanism.
The treatment method suitable for rural sewage treatment is also provided, and comprises an oil removal spoon, and the treatment method comprises the following steps:
s1, primary processing: domestic sewage enters the inclined plate oil separation sedimentation tank, the inclined plate carries out primary treatment on the sewage to realize mud-water separation, separated mud enters the sludge unit and is discharged through the sludge unit, and separated water enters the biochemical reaction tank after being deoiled by the deoiling spoon;
s2, microbial treatment: the water after primary treatment enters the biochemical reaction tank, the submerging depth adjusting mechanism carries out microbial treatment on the water after primary treatment by adjusting the submerging depth of the spherical microbial attachment assembly in the biochemical reaction tank, and the water after microbial treatment enters the clarification unit from the discharge port;
s3, secondary treatment: the water entering the clarification unit and subjected to the microbial treatment is subjected to secondary treatment through the arc-shaped bottom surface to realize mud-water separation, the separated mud flows into the second mud pipe from the middle part of the arc-shaped bottom surface to the lowest position, the mud is discharged by the second mud pipe, and the separated water enters the secondary mud-water separation mechanism from the outlet end of the reaction tank body;
s4, three times of treatment: water after secondary treatment enters into secondary mud-water separation mechanism, secondary mud-water separation mechanism stays through water conservancy and saves the water back, need not external power, autogiration under the rivers action of gravity of saving, and it gets into to go out the water in the clear water pond, it gets into to go out mud store up mud portion.
As a further preferred aspect of the present invention, in step S2, there are two specific conditions of large water amount and small water amount, and the distribution of the spherical microorganism attachment assemblies in the two conditions is as follows:
under the working condition of large water quantity, the plurality of spherical microorganism attachment assemblies on the rotating shaft in the first water passing gallery are arranged at intervals from sparse to dense along the direction from the first water inlet to the internal environment of the biochemical reaction tank; the plurality of spherical microorganism attachment assemblies on the rotating shaft in the second water passing gallery are arranged at intervals from sparse to dense along the internal environment of the biochemical reaction tank to the direction of the second water inlet; the spherical microorganism attachment assemblies on the rotating shaft in the third water channel are arranged at intervals from sparse to dense along the direction from the third water inlet to the internal environment of the biochemical reaction tank;
under the little operating mode of water yield, in first water channel, second water channel, the third water channel a plurality of in the pivot spherical microorganism attachment subassembly all is along first water inlet to biochemical reaction pond internal environment direction is by dredging to close interval arrangement.
As a further preferred aspect of the present invention, under a working condition of a large amount of water, the first regulating valve is opened, and the second regulating valve is closed; under the small water quantity working condition, the first regulating valve is closed, and the second regulating valve is opened.
Through the technical scheme, compared with the prior art, the invention has the following beneficial effects:
1. the invention has the advantages of relatively simple structure, convenient operation, small occupied area and good adaptability to the fluctuation of water quality and water quantity.
2. The spherical microorganism attachment component made of polyethylene material is light and corrosion resistant, and the internal elliptical filler deepens the mass transfer effect.
3. The spherical microorganism attachment unit has adjustable submerging depth, adjustable thickness of a biological film in the spherical microorganism attachment unit and adjustable operation mode, anaerobic, anoxic and aerobic conditions are created according to the requirement of water quality treatment, sewage is treated efficiently, and the fluctuation of water quality and water quantity is coped with.
4. The bottom surface of the biochemical reaction tank is arc-shaped, so that sludge is smoothly discharged, and the secondary sludge-water separation mechanism arranged at the bottom of the biochemical reaction tank can further clarify sewage to achieve the effect of efficiently removing sludge.
Drawings
The invention is further illustrated by the following examples in conjunction with the drawings.
FIG. 1 is a process flow diagram of a treatment device suitable for rural sewage treatment.
FIG. 2 is a schematic view showing the internal structure of a polyethylene spherical microorganism-attached component in a biochemical reaction tank.
FIG. 3 is a schematic diagram of parallel operation of spherical microorganism attachment units on the upper part of a biochemical reaction tank when the water amount is large.
FIG. 4 is a schematic view of the series operation of spherical microorganism attachment units in the upper part of a biochemical reaction tank when water is small.
In the figure: 1. a water inlet; 2. a water outlet; 3. an oil removing spoon; 4. a sloping plate; 5. a mud discharging hopper; 6. a first sludge discharge pipe; 7. an inclined plate oil separation sedimentation tank; 8. a spherical microbial attachment assembly; 9. a rotating shaft; 10. a guide rail; 11. a speed reducer; 12. an electric motor; 13. a movable platform; 14. sealing the cabin; 15. a second sludge discharge pipe; 16. a biochemical reaction tank; 17. a water outlet pipe; 18. a secondary sludge-water separation mechanism; 19. a sludge storage part; 20. a clean water tank; 21. a first regulating valve; 22. a second regulating valve; 23. a discharge port; 24. a first baffle; 25. a second baffle; 26. a first water inlet; 27. a second water inlet; 28. a third water inlet; 29. a first water passage gallery; 30. a second water gallery; 31. a third water passage; 32. a partition plate; 33. a central bore; 34. and (4) filling.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
In the description of the present invention, it is to be understood that the terms "left side", "right side", "upper part", "lower part", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and that "first", "second", etc., do not represent an important degree of the component parts, and thus are not to be construed as limiting the present invention. The specific dimensions used in the present example are only for illustrating the technical solution and do not limit the scope of protection of the present invention.
Example 1
This example provides a preferred embodiment, as shown in fig. 1, a treatment device suitable for rural sewage treatment, comprising an inclined plate oil separation sedimentation tank 7, a biochemical reaction tank 16, a secondary mud-water separation mechanism and a clean water tank 20, which are arranged in sequence along the flow direction, wherein:
the inlet end of the inclined plate oil-separation sedimentation tank 7 is connected with domestic sewage, and the outlet end is connected with the biochemical reaction tank 16. Further, swash plate separates oil sedimentation tank 7 and includes water inlet unit, swash plate deoiling sedimentation unit, mud unit and play water unit, water inlet unit specifically does swash plate separates and sets up water inlet 1 on the oil sedimentation tank 7 pool walls, water inlet 1 passes through the pipeline and receives domestic sewage.
The inclined plate oil removal and precipitation unit comprises an inclined plate 4, wherein the inclined plate 4 is positioned below the water inlet 1, the inclined plate 4 is used for separating mud and water from sewage entering the water inlet unit, the separated water is positioned above the inclined plate 4, and the separated sludge enters the sludge unit below the inclined plate 4. The sewage enters the inclined plate oil removal and precipitation unit from the water inlet 1, the inflow water is subjected to oil separation through the inclined plate 4 and is separated from scum, clear oil, heavy oil and impurities, the grease in the inflow water can float on the surface of the inclined plate oil separation sedimentation tank 7 due to low density and is skimmed through the oil removal spoon 3, and suspended matters in the inflow water are precipitated in the sludge unit under the action of gravity.
The mud unit includes a plurality of mud hoppers 5 and a plurality of first mud pipe 6 that are three horn shapes, mud hopper 5 evenly arrange in 7 bottom surfaces of oil sedimentation tank are separated to the swash plate, first mud pipe 6 arrange in 5 bottoms of mud hopper, process the silt (the suspended solid in the aquatic of intaking promptly) that the swash plate 4 separates falls into mud hopper 5 gets into first mud pipe 6, first mud pipe 6 is outside with intraductal mud discharge this processing apparatus.
The water outlet unit discharges water which is separated by the inclined plate 4 above the inclined plate 4 into the biochemical reaction tank 16; specifically, the water outlet unit is a water outlet 2 arranged on the wall of the inclined plate oil separation sedimentation tank 7, and the position of the water outlet 2 is higher than the position of the inclined plate 4.
The biochemical reaction tank 16 includes a reaction tank body, a submerged depth adjusting mechanism, a spherical microorganism attachment unit, and a clarification unit. Further, the bottom surface of the reaction tank body is in an arc shape which is concave towards the direction of the internal environment, and second sludge discharge pipes 15 used for discharging sludge are uniformly arranged at two lowest positions of the arc bottom surface. The sewage passes through the arc-shaped bottom surface, and the sludge flows to the two lowest positions of the arc-shaped bottom surface under the action of gravity, so that the sewage enters the second sludge discharge pipe 15, and then the second sludge discharge pipe 15 discharges the sludge in the pipe out of the treatment device. Preferably, a plc control system is arranged to periodically discharge sludge in the second sludge discharge pipe 15.
Specifically, the reaction tank body includes a first water inlet 26, a second water inlet 27, a third water inlet 28, a first guide plate 24, a second guide plate 25, a first regulating valve 21, a second regulating valve 22, and a discharge port 23, the first water inlet 26, the second water inlet 27, and the third water inlet 28 are sequentially arranged on the wall of the biochemical reaction tank 16 at equal intervals, and the first water inlet 26, the second water inlet 27, and the third water inlet 28 are all connected to the water outlet 2 through pipes. The first guide plate 24 is arranged along the flow direction of water flow and is disposed between the first water inlet 26 and the second water inlet 27, and a first water passage channel 29 is formed between the first guide plate 24 and one of the opposite walls of the biochemical reaction tank 16. The second guide plate 25 is arranged along the water flow direction and is arranged between the second water inlet 27 and the third water inlet 28, a second water passage channel 30 is formed between the second guide plate 25 and the first guide plate 24, and a third water passage channel 31 is formed between the second guide plate 25 and one of the opposite walls of the biochemical reaction tank 16; the end of the first deflector 24 remote from the first water inlet 26 has an opening such that the first water passage gallery 29 is in constant communication with the second water passage gallery 30; the first adjusting valve 21 is installed at one end of the second flow guide plate 25 close to the second water inlet 27, and the first adjusting valve 21 controls the communication between the second water channel 30 and the third water channel 31; the second adjusting valve 22 is installed at one end of the second flow guide plate 25 far away from the second water inlet 27, and the second adjusting valve 22 controls the communication between the second water channel 30 and the discharge port 23; the discharge port 23 is arranged on the partition plate 32, the discharge port 32 is arranged at one side of the third water flowing channel 31 far away from the third water inlet 28, and the discharge port 32 is communicated with the clarification unit. The reaction tank body is also provided with a water outlet pipe 17 leading to the second mud-water separation mechanism 18.
Further, the submerging depth adjusting mechanism comprises a partition plate 32 and an adjusting part, wherein the partition plate 32 divides the internal space of the reaction tank body into two parts, namely the spherical microorganism attaching unit and the clarifying unit, which are distributed in sequence from top to bottom; the spherical microorganism attachment unit is an area for treating sewage discharged by the inclined plate oil separation sedimentation tank; the clarification unit is an area for treating the sewage treated by the microorganisms in the spherical microorganism attachment unit. The adjusting part is arranged outside the reaction tank body and connected with the partition plate 32, the adjusting part can drive the partition plate 32 to move up and down along the height direction of the reaction tank body so as to adjust the submerging depth of the spherical microorganism attachment component 8 by ascending and descending of the platform, and appropriate anaerobic, anoxic and aerobic conditions are created according to the requirement of water quality treatment so as to adapt to the change of the sewage quality.
Specifically, the adjusting part comprises a guide rail 10, a movable platform 13, a three-motor 12 and a three-speed reducer 11, wherein the guide rail 10 is arranged along the height direction of the biochemical reaction tank 16; the movable platform 13 is fixedly connected with the partition plate 32, and the movable platform 13 moves up and down along the guide rail 10. The motor 12 is used for driving the rotating shaft 9 to rotate, and the speed reducer 11 is used for adjusting the rotating speed of the rotating shaft 9.
Further, the spherical microorganism attachment unit comprises three rotating shafts 9 and a plurality of spherical microorganism attachment assemblies 8, and one rotating shaft 9 is arranged in each of the first water passing channel 29, the second water passing channel 30 and the third water passing channel 31; a plurality of spherical microorganism attachment assemblies 8 are arranged on each rotating shaft 9 at intervals. One end of each rotating shaft 9, which is far away from the inclined plate oil separation sedimentation tank 7, is connected with one motor 12; one speed reducer 11 is installed between the speed reducer 11 and the rotating shaft 9. The installation positions among the plurality of spherical microorganism attachment assemblies 8 can be adjusted, and the plurality of spherical microorganism attachment assemblies 8 are densely arranged in series one by one after being dredged in the water flow direction; the plurality of spherical microorganism attachment assemblies 8 are fixed on the rotating shaft 9 through fixing clamps, and the positions of the plurality of spherical microorganism attachment assemblies 8 on the rotating shaft 9 are adjusted by adjusting the fixing positions of the fixing clamps.
Specifically, the spherical microorganism attachment assembly 8 is spherical, a central hole 33 for stringing the spherical microorganism attachment assembly on the rotating shaft is formed in the center of the spherical microorganism attachment assembly 8, and a plurality of elliptic fillers 34 are arranged inside the spherical microorganism attachment assembly 8. As shown in FIG. 2, the lines between the fillers 34 in FIG. 2 are illustrated as water flow, the spherical microbial attachment assembly 8 is made of polyethylene, is light and corrosion resistant, and has a plurality of oval fillers 34 inside to maximize space utilization.
The secondary mud-water separation mechanism 18 is funnel-shaped and is arranged at the outlet end of the biochemical reaction tank 16, an included angle between a bus of a point on the opening of the secondary mud-water separation mechanism 18 and a horizontal line is alpha, an included angle between a bus of a point on the opening of the secondary mud-water separation mechanism 18, which is farthest away from the point, and the horizontal line is beta, and alpha is less than beta. Further, secondary mud-water separation mechanism 18 bottom sets up stores up mud portion 19, it is cylindric to store up mud portion 19. Preferably, a PLC control system is arranged to complete sludge discharge in the sludge storage part 19 before the secondary sludge-water separation mechanism 18 rotationally discharges water every time.
The clean water tank 20 receives water discharged from the secondary sludge-water separation mechanism 18.
In order to reduce the resistance of the movable platform 13 to move up and down, the partition 32 is internally provided to be hollow to form a sealed cabin 14, and the buoyancy generated by the sealed cabin 14 is similar to the weight of all equipment on the movable platform 13.
The embodiment also provides a treatment method suitable for rural sewage treatment, which specifically comprises the following steps:
s1, primary processing: domestic sewage enters the inclined plate oil separation sedimentation tank 7, the inclined plate 4 carries out primary treatment on sewage to realize mud-water separation, separated mud enters the sludge unit and is discharged through the sludge unit, and separated water enters the biochemical reaction tank 16 after being deoiled through the oil removal spoon 3.
S2, microbial treatment: the water after primary treatment enters the biochemical reaction tank 16, the submerging depth adjusting mechanism carries out microbial treatment on the water after primary treatment by adjusting the submerging depth of the spherical microbial attachment assembly 8 in the biochemical reaction tank 16, and the water after microbial treatment enters the clarifying unit from the discharge port 23.
Wherein, during microbiological treatment, have two kinds of special operating modes of the big and little water yield of water yield, under two kinds of operating modes spherical microorganism attachment subassembly 8 distribution condition is different, specifically as follows:
as shown in fig. 3, under the working condition of large water amount, the first regulating valve 21 is opened, and the second regulating valve 22 is closed; the spherical microorganism attachment units are in parallel connection. Specifically, a plurality of spherical microorganism attachment assemblies 8 on the rotating shaft 9 in the first water passage channel 29 are arranged at intervals from sparse to dense along the direction from the first water inlet 26 to the internal environment of the biochemical reaction tank 16; a plurality of spherical microorganism attachment assemblies 8 on the rotating shaft 9 in the second water channel 30 are arranged at intervals from sparse to dense along the internal environment of the biochemical reaction tank 16 to the direction of the second water inlet 27; the plurality of spherical microorganism attachment assemblies 8 on the rotating shaft 9 in the third water channel 30 are arranged from sparse to dense at intervals along the direction from the third water inlet 28 to the internal environment of the biochemical reaction tank 16.
As shown in fig. 4, under the working condition of small water amount, the first regulating valve is closed, and the second regulating valve is opened; the spherical microorganism attachment units are in a serial form. Specifically, the first water passing channel, the second water passing channel and the third water passing channel are internally provided with a plurality of spherical microorganism attachment assemblies on the rotating shaft, and the spherical microorganism attachment assemblies are arranged at intervals from sparse to dense along the direction of the internal environment of the biochemical reaction tank from the first water inlet.
S3, secondary treatment: and (3) the water after being treated by the microorganisms in the clarification unit is subjected to secondary treatment through the arc-shaped bottom surface, so that mud and water separation is realized, the separated mud flows into the second mud pipe 15 from the middle part of the arc-shaped bottom surface to the lowest position, the mud is discharged from the second mud pipe 15, and the separated water enters the secondary mud-water separation mechanism 18 from the outlet end of the reaction tank body.
S4, three times of treatment: water after the secondary treatment enters into secondary mud-water separation mechanism 18, secondary mud-water separation mechanism 18 stays through water conservancy and reserves the back of gathering up water, need not external power, autogiration under the rivers action of gravity of gathering up, goes out the water and gets into in clean water basin 20, it gets into to go out mud store up mud portion 19.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The meaning of "and/or" as used herein is intended to include both the individual components or both.
The term "connected" as used herein may mean either a direct connection between components or an indirect connection between components via other components.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. The utility model provides a processing apparatus suitable for rural sewage treatment which characterized in that: including the swash plate oil-separating sedimentation tank, biochemical reaction pond, secondary mud-water separating mechanism and the clean water basin that arrange in proper order along the rivers flow direction, wherein:
the inlet end of the inclined plate oil separation sedimentation tank is connected with domestic sewage, and the outlet end of the inclined plate oil separation sedimentation tank is connected with the biochemical reaction tank;
the biochemical reaction tank comprises a reaction tank body, a submerging depth adjusting mechanism, a spherical microorganism attaching unit and a clarifying unit; the bottom surface of the reaction tank body is in an arc shape which is sunken towards the direction of the internal environment, and second sludge discharge pipes for discharging sludge are uniformly arranged at two lowest positions of the arc bottom surface;
the submerging depth adjusting mechanism comprises a partition plate and an adjusting part, wherein the partition plate divides the internal space of the reaction tank body into a spherical microorganism attaching unit and a clarifying unit which are distributed up and down in sequence;
the adjusting part is arranged outside the reaction tank body and connected with the partition plate, and the adjusting part can drive the partition plate to move up and down along the height direction of the reaction tank body;
the spherical microorganism attachment unit is an area for treating sewage discharged by the inclined plate oil separation sedimentation tank;
the clarification unit is an area for treating sewage subjected to the microbial treatment of the spherical microbial attachment unit;
the secondary sludge-water separation mechanism is funnel-shaped and is arranged at the outlet end of the biochemical reaction tank, the included angle between a bus of a point on the opening of the secondary sludge-water separation mechanism and a horizontal line is alpha, the included angle between the bus of a point on the opening of the secondary sludge-water separation mechanism, which is farthest away from the point, and the horizontal line is beta, and alpha is less than beta;
and the clean water tank receives water discharged by the secondary mud-water separation mechanism.
2. The treatment device suitable for rural sewage treatment according to claim 1, wherein: the swash plate separates oily sedimentation tank and includes water inlet unit, swash plate deoiling precipitation unit, mud unit and play water unit, wherein:
the water inlet unit receives domestic sewage;
the inclined plate oil removal and precipitation unit comprises an inclined plate, the inclined plate is positioned below the water inlet unit, the inclined plate is used for carrying out mud-water separation on sewage entering from the water inlet unit, the separated water is positioned above the inclined plate, and the separated sludge enters the sludge unit below the inclined plate;
the sludge unit comprises a plurality of triangular sludge discharging hoppers and a plurality of first sludge discharging pipes, the sludge discharging hoppers are uniformly arranged on the bottom surface of the inclined plate oil-separating sedimentation tank, the first sludge discharging pipes are arranged at the bottoms of the sludge discharging hoppers, and sludge separated by the inclined plates falls into the sludge discharging hoppers and enters the first sludge discharging pipes;
and the water outlet unit discharges the water which is separated by the inclined plate above the inclined plate into the biochemical reaction tank.
3. The treatment device suitable for rural sewage treatment according to claim 2, wherein: the reaction tank body includes first water inlet, second water inlet, third inlet, first guide plate, second guide plate, first governing valve, second governing valve and discharge port, wherein:
the first water inlet, the second water inlet and the third water inlet are sequentially arranged on the wall of the biochemical reaction tank at equal intervals, and the first water inlet, the second water inlet and the third water inlet are all connected with the water outlet unit;
the first guide plate is arranged along the flow direction of water flow and is arranged between the first water inlet and the second water inlet, and a first water passing channel is formed between the first guide plate and one pool wall of the biochemical reaction pool opposite to the first guide plate;
the second guide plate is arranged along the flow direction of water flow and is arranged between the second water inlet and the third water inlet, a second water passing channel is formed between the second guide plate and the first guide plate, and a third water passing channel is formed between the second guide plate and one opposite pool wall of the biochemical reaction pool;
the end, far away from the first water inlet, of the first guide plate is provided with an opening, so that the first water passing gallery and the second water passing gallery are always communicated;
the first regulating valve is installed at one end, close to the second water inlet, of the second guide plate, and the first regulating valve controls communication between the second water passing gallery and the third water passing gallery;
the second regulating valve is installed at one end, far away from the second water inlet, of the second guide plate, and the second water passing gallery is controlled to be communicated with the discharge port through the second regulating valve;
the discharge port is arranged on the partition plate, the third water passing gallery is arranged at one side far away from the third water inlet, and the discharge port is communicated with the clarification unit.
4. The treatment device suitable for rural sewage treatment according to claim 3, wherein: the spherical microorganism attachment unit comprises three rotating shafts and a plurality of spherical microorganism attachment assemblies, wherein:
a rotating shaft is arranged in each of the first water passing gallery, the second water passing gallery and the third water passing gallery;
a plurality of spherical microorganism attachment assemblies are arranged on each rotating shaft at intervals.
5. The treatment device suitable for rural sewage treatment according to claim 4, wherein: the regulation portion includes guide rail, movable platform, three motors and three speed reducers, wherein:
the guide rail is arranged along the height direction of the biochemical reaction tank;
the movable platform is fixedly connected with the partition plate and moves up and down along the guide rail;
one end of each rotating shaft, which is far away from the inclined plate oil separation sedimentation tank, is connected with one motor;
and one speed reducer is arranged between the speed reducer and the rotating shaft.
6. The treatment device suitable for rural sewage treatment according to claim 5, wherein: the spherical microorganism attachment assembly is spherical, the center of the spherical microorganism attachment assembly is provided with a center hole used for stringing the spherical microorganism attachment assembly on the rotating shaft, and a plurality of elliptic fillers are arranged inside the spherical microorganism attachment assembly.
7. The treatment device suitable for rural sewage treatment according to claim 6, wherein: still including being cylindric mud portion that stores up, store up mud portion set up in secondary mud-water separation mechanism bottom.
8. A treatment method suitable for rural sewage treatment, which utilizes the treatment device suitable for rural sewage treatment in claim 7 to perform treatment, and is characterized by comprising an oil removal spoon, and the treatment method comprises the following steps:
s1, primary processing: domestic sewage enters the inclined plate oil separation sedimentation tank, the inclined plate carries out primary treatment on the sewage to realize mud-water separation, separated mud enters the sludge unit and is discharged through the sludge unit, and separated water enters the biochemical reaction tank after being deoiled by the deoiling spoon;
s2, treating microorganisms: the water after primary treatment enters the biochemical reaction tank, the submerging depth adjusting mechanism carries out microbial treatment on the water after primary treatment by adjusting the submerging depth of the spherical microbial attachment component in the biochemical reaction tank, and the water after microbial treatment enters the clarifying unit from the discharge port;
s3, secondary treatment: the water entering the clarification unit and subjected to the microbial treatment is subjected to secondary treatment through the arc-shaped bottom surface to realize mud-water separation, the separated mud flows into the second mud pipe from the middle part of the arc-shaped bottom surface to the lowest position, the mud is discharged by the second mud pipe, and the separated water enters the secondary mud-water separation mechanism from the outlet end of the reaction tank body;
s4, three times of treatment: water after secondary treatment enters into secondary mud-water separation mechanism, secondary mud-water separation mechanism stays through water conservancy and saves the water back, need not external power, autogiration under the rivers action of gravity of saving, and it gets into to go out the water in the clear water pond, it gets into to go out mud store up mud portion.
9. The treatment method suitable for rural sewage treatment according to claim 8, characterized in that: in step S2, there are two special conditions of large water volume and small water volume, and the spherical microbial attachment assemblies are specifically distributed as follows:
under the working condition of large water quantity, the plurality of spherical microorganism attachment assemblies on the rotating shaft in the first water passing gallery are arranged at intervals from sparse to dense along the direction from the first water inlet to the internal environment of the biochemical reaction tank; the plurality of spherical microorganism attachment assemblies on the rotating shaft in the second water passing gallery are arranged at intervals from sparse to dense along the internal environment of the biochemical reaction tank to the direction of the second water inlet; the spherical microorganism attachment assemblies on the rotating shaft in the third water channel are arranged at intervals from sparse to dense along the direction from the third water inlet to the internal environment of the biochemical reaction tank;
under the little operating mode of water yield, in first water channel, second water channel, the third water channel a plurality of in the pivot spherical microorganism attachment subassembly all is along first water inlet to biochemical reaction pond internal environment direction is by dredging to close interval arrangement.
10. The treatment method suitable for rural sewage treatment according to claim 9, characterized in that: under the working condition of large water quantity, the first regulating valve is opened, and the second regulating valve is closed; under the small water quantity working condition, the first regulating valve is closed, and the second regulating valve is opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111637120.9A CN114516703A (en) | 2021-12-29 | 2021-12-29 | Treatment device and treatment method suitable for rural sewage treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111637120.9A CN114516703A (en) | 2021-12-29 | 2021-12-29 | Treatment device and treatment method suitable for rural sewage treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114516703A true CN114516703A (en) | 2022-05-20 |
Family
ID=81596406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111637120.9A Pending CN114516703A (en) | 2021-12-29 | 2021-12-29 | Treatment device and treatment method suitable for rural sewage treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114516703A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2887857Y (en) * | 2006-04-13 | 2007-04-11 | 王宝贞 | Submerged bio-membrane and active sludge composite bio-treatment system |
| CN202156974U (en) * | 2011-04-18 | 2012-03-07 | 北京科技大学 | Rural domestic sewage emission reduction device |
| CN203513356U (en) * | 2013-11-08 | 2014-04-02 | 成都加杰尔环保有限公司 | Movable sewage biological oxidization device |
| CN109019842A (en) * | 2018-07-11 | 2018-12-18 | 浙江清天地环境工程有限公司 | A kind of spherical suspending biologic packing material |
| WO2021174722A1 (en) * | 2020-03-04 | 2021-09-10 | 湖南恒凯环保科技投资有限公司 | Regulation, storage, and purification system and method for controlling rain and sewage confluence and overflow pollution |
-
2021
- 2021-12-29 CN CN202111637120.9A patent/CN114516703A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2887857Y (en) * | 2006-04-13 | 2007-04-11 | 王宝贞 | Submerged bio-membrane and active sludge composite bio-treatment system |
| CN202156974U (en) * | 2011-04-18 | 2012-03-07 | 北京科技大学 | Rural domestic sewage emission reduction device |
| CN203513356U (en) * | 2013-11-08 | 2014-04-02 | 成都加杰尔环保有限公司 | Movable sewage biological oxidization device |
| CN109019842A (en) * | 2018-07-11 | 2018-12-18 | 浙江清天地环境工程有限公司 | A kind of spherical suspending biologic packing material |
| WO2021174722A1 (en) * | 2020-03-04 | 2021-09-10 | 湖南恒凯环保科技投资有限公司 | Regulation, storage, and purification system and method for controlling rain and sewage confluence and overflow pollution |
Non-Patent Citations (1)
| Title |
|---|
| F.W.惠顿: "《水产养殖工程》", 农业出版社, pages: 268 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| HU214473B (en) | Equipment for treating sewage water | |
| CN108249691B (en) | Integrated low-energy-consumption distributed village and town domestic sewage treatment system | |
| CN101580327B (en) | Sewage treatment process and device thereof | |
| CN110627196A (en) | Inclined tube precipitation device and high ammonia nitrogen organic sewage treatment system | |
| CN110183068A (en) | A kind of food and drink waste water integration advanced treatment reactor | |
| CN100500593C (en) | Combined type wastewater treatment method and equipment | |
| CN210001734U (en) | Excrement collecting sewage recycling treatment device and system | |
| CN101811752B (en) | Restaurant wastewater oil remover | |
| CN114516703A (en) | Treatment device and treatment method suitable for rural sewage treatment | |
| CN2832804Y (en) | Composite sewage treatment equipment | |
| CN201660510U (en) | Device for removing oil in restaurant wastewater | |
| CN215249865U (en) | Emergency treatment device for sudden urban landscape water pollution | |
| CN214060266U (en) | Unmanned, high-efficient low consumption rural domestic sewage treatment system | |
| CN111320340B (en) | Bioreactor for treating garbage transfer station pressed leachate | |
| CN103922550B (en) | Upward flow combined type secondary biological film sewage treatment integrated equipment | |
| CN211141630U (en) | Inclined tube precipitation device and high ammonia nitrogen organic sewage treatment system | |
| CN210796140U (en) | Domestic sewage treatment device | |
| CN211338961U (en) | Sewage treatment device adopting down-flow type anaerobic biological filter combined process | |
| CN208594093U (en) | Villages and small towns decentralized type sewage treatment reactor | |
| CN102502958A (en) | Upflow anaerobic sludge blanket reactor system | |
| CN204824547U (en) | Float formula river course purifier | |
| CN214244129U (en) | Sewage treatment station | |
| CN110697973A (en) | Sewage draining port water treatment equipment for urban drainage pipeline | |
| CN212334926U (en) | Water ecological treatment system based on microbial degradation | |
| CN215592876U (en) | High-efficient integrated aerobic biochemical precipitation treatment system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |