CN109279743B - Household sewage treatment device - Google Patents
Household sewage treatment device Download PDFInfo
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- CN109279743B CN109279743B CN201811478899.2A CN201811478899A CN109279743B CN 109279743 B CN109279743 B CN 109279743B CN 201811478899 A CN201811478899 A CN 201811478899A CN 109279743 B CN109279743 B CN 109279743B
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- aeration
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- communicated
- hydrolysis
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- 239000010865 sewage Substances 0.000 title claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 79
- 238000005273 aeration Methods 0.000 claims abstract description 61
- 230000007062 hydrolysis Effects 0.000 claims abstract description 49
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 49
- 239000010802 sludge Substances 0.000 claims abstract description 35
- 238000000926 separation method Methods 0.000 claims abstract description 32
- 235000013162 Cocos nucifera Nutrition 0.000 claims abstract description 16
- 244000060011 Cocos nucifera Species 0.000 claims abstract description 16
- 239000003814 drug Substances 0.000 claims abstract description 12
- 238000005191 phase separation Methods 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 abstract description 7
- 239000003344 environmental pollutant Substances 0.000 abstract description 5
- 231100000719 pollutant Toxicity 0.000 abstract description 5
- 241000894006 Bacteria Species 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000001546 nitrifying effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
- C02F11/04—Anaerobic treatment; Production of methane by such processes
-
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- 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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/20—Activated sludge processes using diffusers
- C02F3/201—Perforated, resilient plastic diffusers, e.g. membranes, sheets, foils, tubes, hoses
-
- 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
- C02F3/28—Anaerobic digestion 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)
- Activated Sludge Processes (AREA)
Abstract
The invention relates to a household sewage treatment device, which comprises a hollow cylinder, wherein a septic area, a hydrolysis area, an aeration area, a mud-water separation area and a water outlet tank are sequentially communicated with each other in the cylinder, and the mud-water separation area is arranged between the aeration area and the hydrolysis area; a plurality of aeration risers are arranged in the aeration zone, the bottom ends of the aeration risers are communicated with perforated aeration pipes, the inner side of the aeration risers is provided with a sludge stripping riser, the bottom ends of the sludge stripping risers are communicated with perforated sludge pipes, the top ends of the sludge stripping risers are communicated with the hydrolysis zone, and the bottom of the aeration zone is communicated with the bottom of the sludge-water separation zone through a three-phase separation unit; a shredded coconut stuffing layer is arranged in the mud-water separation area; the device also comprises a medicine feeding pipe, wherein the lower end of the medicine feeding pipe is communicated with the mud-water separation area below the shredded coconut stuffing layer. The device has compact and reasonable structure, good sewage treatment effect and stable effluent, and can reach the first-level A standard of pollutant emission standard of urban sewage treatment plants (GB 18918-2002).
Description
Technical Field
The invention relates to a household sewage treatment device, and belongs to the field of sewage treatment equipment.
Background
At present, rural natural village domestic sewage centralized treatment has the problems of large pipe network investment, difficult construction and the like, and small-sized integrated sewage treatment equipment for solving the problems is urgently needed. The Japanese purifying tank technology is not completely suitable for the water quality in rural areas of China and has high price; the design of the process section of the similar equipment in China is fuzzy, and the water outlet effect cannot be ensured.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the household sewage treatment device with a simple and reasonable structure, and the sewage treatment effect is improved.
In order to solve the technical problems, the technical scheme of the invention is as follows:
The household sewage treatment device comprises a hollow cylinder body, wherein a septic area, a hydrolysis area, an aeration area, a mud-water separation area and a water outlet tank are sequentially communicated with each other in the cylinder body, and the mud-water separation area is arranged between the aeration area and the hydrolysis area; a plurality of aeration risers are arranged in the aeration zone, the bottom ends of the aeration risers are communicated with perforated aeration pipes, the inner side of the aeration risers is provided with a sludge stripping riser, the bottom ends of the sludge stripping risers are communicated with perforated sludge pipes, the top ends of the sludge stripping risers are communicated with the hydrolysis zone, and the bottom of the aeration zone is communicated with the bottom of the sludge-water separation zone through a three-phase separation unit; a shredded coconut stuffing layer is arranged in the mud-water separation area; the device also comprises a medicine feeding pipe, wherein the lower end of the medicine feeding pipe is communicated with the mud-water separation area below the shredded coconut stuffing layer.
Thus, after the sewage to be treated is introduced into the septic area, the sewage after preliminary decomposition is subsequently introduced into the hydrolysis area for further hydrolysis; then, sewage enters an aeration zone, arc perforation aeration pipes are arranged at the bottom of the aeration zone, the hole pitches of the arc perforation aeration pipes are staggered, and the arc perforation aeration pipes are close to the outer side of the cylinder, so that a concurrent pattern of an anoxic zone and an aerobic zone can be formed in the aeration zone, nitrifying bacteria and denitrifying bacteria are concurrent, and the nitrifying bacteria and denitrifying bacteria are distributed in different areas of the aeration zone separately from each other, which is different from the alternate nitrification and denitrification process of the traditional activated sludge denitrification process, and the aim of synchronous nitrification and denitrification is fulfilled; the sludge at the bottom of the aeration zone can flow back into the hydrolysis zone through a perforated sludge pipe and a sludge stripping vertical pipe to be further decomposed, so that the sludge volume is reduced; sewage enters the bottom of the mud-water separation zone from the bottom of the aeration zone, and sludge is deposited on the shredded coconut stuffing and flows back to the bottom of the aeration zone under the action of the three-phase separation unit.
Further, the three-phase separation unit comprises a first plate, a second plate and a third plate, wherein the first plate is vertically arranged, the second plate is positioned on the inner side of the first plate and is inclined from bottom to top to the hydrolysis area, the third plate is positioned above the second plate and is inclined from bottom to top to the outer side of the mud-water separation area, a lower backflow seam is reserved between the first plate and the second plate, an air seam is reserved between the first plate and the third plate, and an upper backflow seam is reserved between the second plate and the third plate. Thus, bubbles in the sewage can enter the aeration zone through the air gaps, and the sludge generated in the sludge-water separation zone can automatically and sequentially flow into the bottom of the aeration zone along the third plate and the second plate and is returned to the hydrolysis zone by the perforated sludge pipe and the sludge stripping vertical pipe for further treatment.
Further, the hydrolysis zone is arranged in the center of the cylinder, the central axis of the hydrolysis zone is coincident with the central axis of the cylinder, the inner side surface of the aeration zone is adjacent to the hydrolysis zone, the inner side surface of the septic zone is adjacent to the hydrolysis zone, and the outer side surface of the septic zone is adjacent to the inner side wall of the cylinder.
Further, the septic area is communicated with the hydrolysis area through a water inlet pipe, the lower end of the water inlet pipe extends to the lower part of the septic area, and the upper end of the water inlet pipe is communicated with the upper part of the hydrolysis area. Therefore, the liquid flow stability between the hydrolysis area and the septic area can be improved, and the impact load resistance of the device is improved.
Further, the hydrolysis area is communicated with the aeration area through a plurality of water distribution pipes, the lower ends of the water distribution pipes extend to the lower part of the hydrolysis area, and the upper ends of the water distribution pipes are communicated with the upper part of the aeration area. Preferably, the plurality of water distribution pipes are circumferentially distributed along the central axis of the cylinder. Thus, the stability of the liquid flow between the hydrolysis area and the aeration area can be improved, and the impact load resistance of the device is improved.
Further, the stuffing in the shredded coconut stuffing layer is mainly shredded coconut stuffing, which is beneficial to prolonging the flow of sewage in the mud-water separation area, improving the mud-water separation effect, effectively reducing the concentration of suspended matters in the effluent, and ensuring that the effluent is clear and bright.
Furthermore, the stuffing in the shredded coconut stuffing layer is mainly shredded coconut stuffing, and has larger specific surface area, thereby providing a comfortable growth environment for mass propagation of microorganisms, having multiple microorganism types and high activity, and the abundant microorganisms can further remove pollutants such as organic matters in sewage, thereby playing a role in advanced sewage treatment.
Further, the water outlet groove is communicated with the upper part of the mud-water separation area through a water outlet pipe, and a water outlet communicated with the water outlet groove is arranged on the side wall of the cylinder body.
Further, a plurality of saw-tooth weirs are arranged in the water outlet groove.
Further, a water inlet communicated with the upper part of the septic area is arranged on the side wall of the cylinder. Preferably, the height of the water inlet is higher than the height of the water outlet.
Further, the perforated aeration pipe is arc-shaped as a whole; the perforated sludge pipe is integrally arc-shaped.
Compared with the prior art, the invention has the following beneficial effects:
(1) The device has compact and reasonable structure, good sewage treatment effect and stable effluent, and can reach the first-level A standard of pollutant emission standard of urban sewage treatment plants (GB 18918-2002);
(2) The residual sludge is extremely small, and the shutdown cleaning is basically not needed, so that the effective operation time of the device is prolonged;
(3) The aeration area integrates an aerobic treatment function and an anoxic treatment function, and a settling area is not required to be additionally arranged through the arrangement of the three-phase separation unit, so that the structure is simplified compared with the traditional household sewage treatment equipment.
(4) The mud-water separation area not only prolongs the sewage flow by using the shredded coconut stuffing, but also has better mud-water separation effect compared with the traditional household sewage treatment equipment, effectively reduces the concentration of suspended matters in the effluent, and ensures clear and bright effluent; and the coconut stuffing has large specific surface area, is rich in a large amount of microorganisms, can further remove pollutants such as organic matters in sewage, and plays a role in sewage advanced treatment.
Drawings
Fig. 1 is an elevation view of a household sewage treatment apparatus of the present invention.
Fig. 2 is a schematic cross-sectional view of a location of a shredded coconut stuffing layer of a household sewage treatment apparatus of the present invention.
Fig. 3 is a plan view of a household sewage treatment apparatus of the present invention.
Detailed Description
The present invention will be described in detail with reference to examples. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. For convenience of description, the words "upper", "lower", "left" and "right" are used hereinafter to denote only the directions corresponding to the upper, lower, left, and right directions of the drawings, and do not limit the structure.
As shown in fig. 1 to 3, a household sewage treatment device comprises a hollow cylindrical barrel, wherein a septic area 2, a hydrolysis area 3, an aeration area 4, a mud-water separation area 5 and a water outlet tank 6 which are sequentially communicated are arranged in the barrel, and the mud-water separation area is arranged between the aeration area and the hydrolysis area; a plurality of aeration risers 25 are arranged in the aeration zone 4, the bottom ends of the aeration risers are communicated with perforated aeration pipes 16, the inner side of the aeration risers 25 is provided with a sludge stripping riser 18, the bottom ends of the sludge stripping risers are communicated with perforated sludge pipes 17, the top ends of the sludge stripping risers are communicated with the hydrolysis zone 3, and the bottom of the aeration zone is communicated with the bottom of the sludge-water separation zone through a three-phase separation unit 21; a shredded coconut stuffing layer 15 is arranged in the mud-water separation area; the device also comprises a medicine feeding pipe 11, and the lower end of the medicine feeding pipe is communicated with the mud-water separation area below the shredded coconut stuffing layer. The three-phase separation unit 21 comprises a first plate 24 vertically arranged, a second plate 23 positioned on the inner side of the first plate and inclined from bottom to top to the hydrolysis zone, and a third plate 22 positioned above the second plate and inclined from bottom to top to the outer side of the mud-water separation zone, wherein a lower backflow gap is reserved between the first plate and the second plate, an air gap is reserved between the first plate and the third plate, and an upper backflow gap is reserved between the second plate and the third plate. The upper end of the sludge stripping vertical pipe 18 is connected with a sludge return pipe 19, one end of the sludge return pipe 19 extends into the upper part of the hydrolysis zone, and a valve 20 is arranged on the sludge return pipe 19. The aeration vertical pipe 25 is provided with a four-way joint 26, and the middle lower part of the sludge stripping vertical pipe is communicated with the four-way joint. The cylinder body is provided with an air inlet 9 communicated with the aeration vertical pipe and a medicine inlet 11 communicated with the medicine inlet pipe.
The hydrolysis zone is arranged in the center of the cylinder, the central axis of the hydrolysis zone is cylindrical, the central axis of the hydrolysis zone is coincident with the central axis of the cylinder, the inner side surface of the aeration zone is adjacent to the hydrolysis zone (the adjacent area is 3/4 of the area of the side wall of the hydrolysis zone), the inner side surface of the septic zone is adjacent to the hydrolysis zone (the adjacent area is 1/4 of the area of the side wall of the hydrolysis zone), and the outer side surface of the septic zone is adjacent to the inner side wall of the cylinder (the adjacent area is 1/4 of the area of the inner side wall of the cylinder).
The septic area is communicated with the hydrolysis area through a water inlet pipe 12, the lower end of the water inlet pipe extends to the lower part of the septic area, and the upper end of the water inlet pipe is communicated with the upper part of the hydrolysis area. The hydrolysis zone is communicated with the aeration zone through a plurality of water distribution pipes 13, the lower ends of the water distribution pipes extend to the lower part of the hydrolysis zone, and the upper ends of the water distribution pipes are communicated with the upper part of the aeration zone.
The water outlet groove is communicated with the upper part of the mud-water separation area through a water outlet pipe 14, and a water outlet 8 communicated with the water outlet groove is arranged on the side wall of the cylinder body. Two saw-tooth weirs 7 are arranged in the water outlet groove. The number of the water outlet pipes is 2, and the water outlet pipes are symmetrically distributed along the central axis of the cylinder body.
The side wall of the cylinder body is provided with a water inlet 1 communicated with the upper part of the septic area. The central axes of the water inlet and the water outlet are positioned in the same vertical plane.
The whole perforated aeration pipe is arc-shaped; the perforated sludge pipe is integrally arc-shaped.
The invention is a complete set of equipment designed specially for rural household sewage treatment, has strong impact load resistance, simple operation and management, convenient operation and maintenance and less residual sludge, and the effluent can stably reach the first grade A standard of pollutant emission standard of urban sewage treatment plant (GB 18918-2002).
The foregoing examples are set forth in order to provide a more thorough description of the present application and are not intended to limit the scope of the application, and various modifications of the application, which are equivalent to those skilled in the art upon reading the present application, will fall within the scope of the application as defined in the appended claims.
Claims (9)
1. The household sewage treatment device comprises a hollow barrel body, and is characterized in that a septic area (2), a hydrolysis area (3), an aeration area (4), a mud-water separation area (5) and a water outlet tank (6) which are sequentially communicated are arranged in the barrel body, and the mud-water separation area is arranged between the aeration area and the hydrolysis area; a plurality of aeration risers (25) are arranged in the aeration zone (4), the bottom ends of the aeration risers are communicated with perforated aeration pipes (16), sludge stripping risers (18) are arranged on the inner sides of the aeration risers (25), the bottom ends of the sludge stripping risers are communicated with perforated sludge pipes (17), the top ends of the sludge stripping risers are communicated with the hydrolysis zone (3), and the bottoms of the aeration zone and the bottoms of the mud-water separation zone are communicated through a three-phase separation unit (21); a shredded coconut stuffing layer (15) is arranged in the mud-water separation area; the device also comprises a medicine feeding pipe (11), wherein the lower end of the medicine feeding pipe is communicated with the mud-water separation area below the shredded coconut stuffing layer; the cylinder body is provided with an air inlet (9) communicated with the aeration vertical pipe (25) and a medicine inlet communicated with the medicine inlet pipe (11).
2. A household sewage treatment device according to claim 1, wherein the three-phase separation unit (21) comprises a first plate (24) vertically arranged, a second plate (23) positioned on the inner side of the first plate and inclined from bottom to top to the hydrolysis zone, and a third plate (22) positioned above the second plate and inclined from bottom to top to the outer side of the mud-water separation zone, wherein a lower backflow gap is reserved between the first plate and the second plate, an air gap is reserved between the first plate and the third plate, and an upper backflow gap is reserved between the second plate and the third plate.
3. A household sewage treatment device according to claim 1, wherein the hydrolysis zone is arranged in the center of the cylinder, the central axis of the hydrolysis zone coincides with the central axis of the cylinder, the inner side surface of the aeration zone is adjacent to the hydrolysis zone, the inner side surface of the septic zone is adjacent to the hydrolysis zone, and the outer side surface of the septic zone is adjacent to the inner side wall of the cylinder.
4. A domestic sewage treatment apparatus according to claim 1, wherein the septic region is in communication with the hydrolysis region via a water inlet pipe (12), the lower end of the water inlet pipe extending to the lower part of the septic region, the upper end of the water inlet pipe being in communication with the upper part of the hydrolysis region.
5. A domestic sewage treatment apparatus according to claim 1, wherein the hydrolysis zone and the aeration zone are in communication via a plurality of water distribution pipes (13), the lower ends of which extend to the lower part of the hydrolysis zone, and the upper ends of which are in communication with the upper part of the aeration zone.
6. A household sewage treatment device according to claim 1, wherein the water outlet tank is communicated with the upper part of the mud-water separation zone through a water outlet pipe (14), and a water outlet (8) communicated with the water outlet tank is arranged on the side wall of the cylinder.
7. A domestic sewage treatment apparatus according to claim 1, wherein the water outlet tank is provided with a plurality of saw-toothed weirs (7).
8. A household sewage treatment device according to claim 1, wherein the side wall of the cylinder is provided with a water inlet (1) communicated with the upper part of the septic area.
9. A household sewage treatment device according to claim 1, wherein the perforated aeration pipe is curved as a whole; the perforated sludge pipe is integrally arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811478899.2A CN109279743B (en) | 2018-12-05 | 2018-12-05 | Household sewage treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811478899.2A CN109279743B (en) | 2018-12-05 | 2018-12-05 | Household sewage treatment device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109279743A CN109279743A (en) | 2019-01-29 |
| CN109279743B true CN109279743B (en) | 2024-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811478899.2A Active CN109279743B (en) | 2018-12-05 | 2018-12-05 | Household sewage treatment device |
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| CN (1) | CN109279743B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205275427U (en) * | 2016-01-04 | 2016-06-01 | 宁波清水源水务科技有限公司 | Integration sanitary sewage treatment device |
| CN106116047A (en) * | 2016-08-08 | 2016-11-16 | 苏州方舟环保科技有限公司 | The villages and small towns sewage water treatment method of a kind of high-efficient denitrification and dephosphorization and device |
| CN108046540A (en) * | 2018-01-22 | 2018-05-18 | 云南合续环境科技有限公司 | A kind of synchronous nitration and denitrification sewage water treatment method and its device |
| CN207748996U (en) * | 2017-11-29 | 2018-08-21 | 桑德生态科技有限公司 | A kind of residents sewage-treatment plant |
| CN208038251U (en) * | 2018-01-22 | 2018-11-02 | 云南合续环境科技有限公司 | A kind of family sewage-treatment plant |
| CN209242871U (en) * | 2018-12-05 | 2019-08-13 | 湖南子宏生态科技股份有限公司 | A kind of residents sewage-treatment plant |
-
2018
- 2018-12-05 CN CN201811478899.2A patent/CN109279743B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205275427U (en) * | 2016-01-04 | 2016-06-01 | 宁波清水源水务科技有限公司 | Integration sanitary sewage treatment device |
| CN106116047A (en) * | 2016-08-08 | 2016-11-16 | 苏州方舟环保科技有限公司 | The villages and small towns sewage water treatment method of a kind of high-efficient denitrification and dephosphorization and device |
| CN207748996U (en) * | 2017-11-29 | 2018-08-21 | 桑德生态科技有限公司 | A kind of residents sewage-treatment plant |
| CN108046540A (en) * | 2018-01-22 | 2018-05-18 | 云南合续环境科技有限公司 | A kind of synchronous nitration and denitrification sewage water treatment method and its device |
| CN208038251U (en) * | 2018-01-22 | 2018-11-02 | 云南合续环境科技有限公司 | A kind of family sewage-treatment plant |
| CN209242871U (en) * | 2018-12-05 | 2019-08-13 | 湖南子宏生态科技股份有限公司 | A kind of residents sewage-treatment plant |
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| CN109279743A (en) | 2019-01-29 |
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