CN113735258A - Special anaerobic pool system for extracting N-methyl pyrrolidone - Google Patents
Special anaerobic pool system for extracting N-methyl pyrrolidone Download PDFInfo
- Publication number
- CN113735258A CN113735258A CN202111171588.3A CN202111171588A CN113735258A CN 113735258 A CN113735258 A CN 113735258A CN 202111171588 A CN202111171588 A CN 202111171588A CN 113735258 A CN113735258 A CN 113735258A
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- fixedly connected
- wall
- hollow cylinder
- baffle
- hole
- 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.)
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- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 238000001914 filtration Methods 0.000 claims abstract description 42
- 238000007789 sealing Methods 0.000 claims description 8
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 7
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 7
- 241001330002 Bambuseae Species 0.000 claims description 7
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 7
- 239000011425 bamboo Substances 0.000 claims description 7
- 238000000605 extraction Methods 0.000 claims 1
- 239000012535 impurity Substances 0.000 abstract description 26
- 238000005192 partition Methods 0.000 abstract description 15
- 239000010865 sewage Substances 0.000 abstract description 15
- 238000009825 accumulation Methods 0.000 abstract description 7
- 230000005484 gravity Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 241001148471 unidentified anaerobic bacterium Species 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2866—Particular arrangements for anaerobic reactors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/117—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements arranged for outward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
- B01D35/143—Filter condition indicators
-
- 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
- C02F2101/38—Organic compounds containing nitrogen
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Treatment Of Biological Wastes In General (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention relates to the technical field of sewage treatment, and discloses a special anaerobic tank system for extracting N-methylpyrrolidone. According to the invention, the cover plate, the partition plate, the first through hole, the second through hole, the filtering mechanism, the indicating mechanism and the second hollow cylinder are arranged, wherein when impurities are accumulated in the filtering mechanism, the gravity of the filtering mechanism is increased through the impurities, and the first U-shaped column moves downwards, at the moment, a user can judge the accumulation amount of the impurities in the filtering mechanism by observing the position of the first U-shaped column, so that the user can visually judge the accumulation amount of the impurities in the filtering mechanism and timely clean the impurities in the filtering mechanism.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a special anaerobic pond system for extracting N-methyl pyrrolidone.
Background
At present, when people treat sewage, N-methylpyrrolidone in the sewage is mostly extracted by anaerobic bacteria in an anaerobic tank. Simultaneously, in order to prevent that the outlet pipe on the impurity jam anaerobism pond in the sewage, can set up filtering mechanism in the anaerobism pond usually, filter the impurity in the sewage through filtering mechanism to prevent to get into the outlet pipe on the anaerobism pond because of impurity in, and lead to the outlet pipe to block up. However, because the filtering mechanism is located inside the anaerobic tank, the user can not visually judge the accumulation amount of impurities inside the filtering mechanism, and therefore the user can not timely clean the impurities inside the filtering mechanism.
Disclosure of Invention
The invention aims to solve the defects in the prior art, such as: at present, in order to prevent that impurity in the sewage from blocking the outlet pipe on the anaerobism pond, can set up filtering mechanism in the anaerobism pond usually, filter the impurity in the sewage through filtering mechanism to prevent to get into in the outlet pipe on the anaerobism pond because of impurity, and lead to the outlet pipe to block up. However, the filtering mechanism is positioned inside the anaerobic tank, so that a user cannot visually judge the accumulation amount of impurities inside the filtering mechanism, and the impurities inside the filtering mechanism cannot be cleaned in time by the user.
In order to achieve the purpose, the invention adopts the following technical scheme:
a special anaerobic pool system for extracting N-methyl pyrrolidone comprises an anaerobic pool main body, the upper surface of the anaerobic tank main body is fixedly connected with a cover plate, the inner wall of the anaerobic tank main body is fixedly connected with a clapboard, a first through hole is arranged inside the clapboard, a second through hole is arranged inside the cover plate, the inner wall of the first through hole and the inner wall of the second through hole are both provided with a filtering mechanism in a fitting manner, the left side of the anaerobic tank main body is fixedly communicated with a water inlet pipe, the water inlet pipe is positioned above the partition plate, the right side of the anaerobic tank main body is fixedly communicated with a water outlet pipe which is positioned below the partition plate, the upper surface of the cover plate is fixedly connected with an indicating mechanism, the upper surface of the indicating mechanism is connected with the bottom of the filtering mechanism, the bottom fixedly connected with hollow section of thick bamboo of second of baffle, the inner wall of hollow section of thick bamboo of second and filter mechanism's surface contact.
Preferably, the filter mechanism includes a first hollow cylinder, the inner wall of first through-hole, the inner wall of second through-hole and the inner wall of the hollow cylinder of second all with the surface contact of a first hollow cylinder, the last fixed surface of a first hollow cylinder is connected with the baffle, the bottom of baffle and indicating mechanism's upper surface contact, the third through-hole has been seted up on the surface of a first hollow cylinder, the inner wall fixedly connected with cartridge filter of a first hollow cylinder, the inner wall fixedly connected with internal thread ring of cartridge filter, the internal thread ring is located the below of the hollow cylinder of second, the inner wall threaded connection of internal thread ring has the external thread piece, the fixed surface of external thread piece is connected with the fender ring, the bottom contact of fender ring upper surface and cartridge filter.
Preferably, indicating mechanism includes the support ring, the upper surface of support ring and the bottom contact of baffle, the bottom of support ring and the equal fixedly connected with spring of upper surface of apron, the first U-shaped post of the equal fixedly connected with in both sides around the support ring, both sides and the inner wall of first U-shaped post all laminate around the support ring and are provided with the scale, the bottom of scale and the last fixed surface of apron are connected.
Preferably, the upper surface of the baffle is fixedly connected with a second U-shaped column.
Preferably, the last fixed surface of apron is connected with the spliced pole, the last fixed surface of spliced pole is connected with solid fixed ring, gu the bottom of fixed ring, the surface of spliced pole, the upper surface of apron and the surface of a hollow section of thick bamboo all laminate and be provided with the sealing washer.
Preferably, the number of the connecting columns is four, and the four connecting columns are symmetrically distributed by taking the first hollow cylinder as the center.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the invention, the cover plate, the partition plate, the first through hole, the second through hole, the filtering mechanism, the indicating mechanism and the second hollow cylinder are arranged, when sewage enters the anaerobic tank main body through the water inlet pipe, impurities in the sewage are filtered out through the filtering cylinder, the impurities are accumulated in the filtering mechanism, then, the gravity of the filtering mechanism is increased through the impurities accumulated in the filtering mechanism, and the first U-shaped column moves downwards, at the moment, a user can judge the accumulation amount of the impurities in the filtering mechanism by observing the position of the first U-shaped column, so that the user can visually judge the accumulation amount of the impurities in the filtering mechanism and timely clean the impurities in the filtering mechanism.
(2) According to the anaerobic tank, the connecting column, the fixing ring and the sealing ring are arranged, when the filtering mechanism is inserted into the first through hole and the second through hole, the sealing ring is in close contact with the first hollow cylinder, so that the sealing ring can seal a gap between the first hollow cylinder and the second through hole, and air inside and outside the anaerobic tank main body is prevented from flowing through the gap between the first hollow cylinder and the second through hole.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a front view of the structure of the present invention;
FIG. 3 is a top view of a separator plate according to the present invention;
FIG. 4 is a schematic view of a filter mechanism of the present invention;
FIG. 5 is a front view of the filter mechanism of the present invention;
FIG. 6 is a cross-sectional view taken at A-A of FIG. 5 in accordance with the present invention;
fig. 7 is a bottom view of the indicating mechanism of the present invention.
In the figure: 1. an anaerobic tank main body; 2. a cover plate; 3. a partition plate; 4. a first through hole; 5. a second through hole; 6. a filtering mechanism; 61. a first hollow cylinder; 62. a baffle plate; 63. a third through hole; 64. a filter cartridge; 65. an internally threaded ring; 66. an external thread block; 67. a baffle ring; 7. a water inlet pipe; 8. a water outlet pipe; 9. an indication mechanism; 91. a support ring; 92. a spring; 93. a first U-shaped column; 94. a graduated scale; 10. a second hollow cylinder; 11. a second U-shaped post; 12. connecting columns; 13. a fixing ring; 14. and (5) sealing rings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
The first embodiment is as follows:
referring to fig. 1-7, a special anaerobic tank system for extracting N-methylpyrrolidone, comprising an anaerobic tank main body 1, a cover plate 2 fixedly connected to the upper surface of the anaerobic tank main body 1, a partition plate 3 fixedly connected to the inner wall of the anaerobic tank main body 1, a first through hole 4 formed in the partition plate 3, a second through hole 5 formed in the cover plate 2, a filter mechanism 6 attached to the inner wall of the first through hole 4 and the inner wall of the second through hole 5, a water inlet pipe 7 fixedly communicated with the left side of the anaerobic tank main body 1, a water outlet pipe 8 fixedly communicated with the right side of the anaerobic tank main body 1, a water outlet pipe 8 positioned below the partition plate 3, an indication mechanism 9 fixedly connected to the upper surface of the cover plate 2, the upper surface of the indication mechanism 9 connected to the bottom of the filter mechanism 6, a second hollow cylinder 10 fixedly connected to the bottom of the partition plate 3, the inner wall of the second hollow cylinder 10 is in contact with the surface of the filter means 6.
The filtering mechanism 6 comprises a first hollow cylinder 61, the inner wall of the first through hole 4, the inner wall of the second through hole 5 and the inner wall of the second hollow cylinder 10 are all in contact with the surface of the first hollow cylinder 61, the upper surface of the first hollow cylinder 61 is fixedly connected with a baffle 62, the bottom of the baffle 62 is in contact with the upper surface of an indicating mechanism 9, the baffle 62 is supported by the indicating mechanism 9, the surface of the first hollow cylinder 61 is provided with a third through hole 63, the inner wall of the first hollow cylinder 61 is fixedly connected with a filtering cylinder 64, the height of the third through hole 63 is larger than the thickness of the partition plate 3, meanwhile, the third through hole 63 below the partition plate 3 is sealed by the second hollow cylinder 10, so that the sewage above the partition plate 3 cannot directly flow to the lower part of the partition plate 3 through the third through hole 63, the sewage above the partition plate 3 can flow to the lower part of the partition plate 3 through the filtering cylinder 64, the inner wall of the filtering cylinder 64 is fixedly connected with an internal thread ring 65, the internal thread ring 65 is located the below of the hollow section of thick bamboo 10 of second, the inner wall threaded connection of internal thread ring 65 has external screw thread piece 66, the fixed surface of external screw thread piece 66 is connected with and keeps off ring 67, keep off the bottom contact of ring 67 upper surface and cartridge filter 64, the external diameter that keeps off ring 67 equals with the external diameter of the hollow section of thick bamboo 61 of first, the last fixed surface of baffle 62 is connected with second U-shaped post 11, through setting up second U-shaped post 11, make baffle 62 can link together with the lifting hook on the lifting device, and then make filter house 6 can be hoisted by the lifting device.
The indicating mechanism 9 includes a support ring 91, the upper surface of the support ring 91 contacts with the bottom of the baffle plate 62, the bottom of the support ring 91 and the upper surface of the cover plate 2 are both fixedly connected with a spring 92, the support ring 91 is supported by the spring 92, and when the downward acting force of the support ring 91 is increased, the support ring 91 is moved downward by the pressure of the support ring 91 on the spring 92, the front side and the rear side of the support ring 91 are both fixedly connected with a first U-shaped column 93, the front side and the rear side of the support ring 91 and the inner wall of the first U-shaped column 93 are both provided with a scale 94 in a fitting manner, the bottom of the scale 94 is fixedly connected with the upper surface of the cover plate 2, and the user can accurately judge the position of the first U-shaped column 93 by the scale 94.
Example two:
referring to fig. 1-2, the upper surface of the cover plate 2 is fixedly connected with connection posts 12, the number of the connection posts 12 is four, the four connecting columns 12 are symmetrically distributed by taking the first hollow cylinder 61 as the center, the upper surfaces of the connecting columns 12 are fixedly connected with fixing rings 13, the bottom parts of the fixing rings 13, the surfaces of the connecting columns 12, the upper surface of the cover plate 2 and the surface of the first hollow cylinder 61 are respectively provided with a sealing ring 14 in a fitting manner, through the arrangement of the connecting columns 12, the fixing rings 13 and the sealing rings 14, wherein, when the filter mechanism 6 is inserted into the first through hole 4 and the second through hole 5, the seal ring 14 seals the gap between the first hollow cylinder 61 and the second through hole 5 through the close contact between the seal ring 14 and the first hollow cylinder 61, and further prevents the air inside and outside the anaerobic tank main body 1 from flowing through the gap between the first hollow cylinder 61 and the second through hole 5.
In the invention, when a user uses the anaerobic tank, sewage flows into the anaerobic tank main body 1 through the water inlet pipe 7, the sewage entering the anaerobic tank main body 1 enters the filter cylinder 64 through the third through hole 63, then, the impurities in the sewage are filtered out through the filter cartridge 64, and the impurities are accumulated in the filter mechanism 6, meanwhile, the gravity of the filtering mechanism 6 is increased by the impurities accumulated in the filtering mechanism 6, and the first U-shaped column 93 is moved downwards, at this time, the user can judge the accumulation amount of the impurities in the filtering mechanism 6 by observing the position of the first U-shaped column 93, when the impurity in the filtering mechanism 6 reaches a certain amount, the filtering mechanism 6 can be taken out from the anaerobic tank main body 1 by moving the filtering mechanism 6 upwards, and the foreign substances in the filter mechanism 6 are discharged through the bottom of the filter cartridge 64 by separating the internally threaded ring 65 from the externally threaded block 66.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Claims (6)
1. A special anaerobism pond system for drawing N-methylpyrrolidone, including anaerobism pond main part (1), its characterized in that, the last fixed surface of anaerobism pond main part (1) is connected with apron (2), the inner wall fixedly connected with baffle (3) of anaerobism pond main part (1), first through-hole (4) have been seted up to the inside of baffle (3), second through-hole (5) have been seted up to the inside of apron (2), the inner wall of first through-hole (4) and the inner wall of second through-hole (5) all laminate and are provided with filtering mechanism (6), the left side of anaerobism pond main part (1) is fixed to be communicated with inlet tube (7), inlet tube (7) are located the top of baffle (3), the right side of anaerobism pond main part (1) is fixed to be communicated with outlet pipe (8), outlet pipe (8) are located the below of baffle (3), the upper surface fixedly connected with indicating mechanism (9) of apron (2), the upper surface of indicating mechanism (9) connects with the bottom of filter mechanism (6), the hollow section of thick bamboo of bottom fixedly connected with second (10) of baffle (3), the inner wall of the hollow section of thick bamboo of second (10) and the surface contact of filter mechanism (6).
2. The special anaerobic pond system for extracting N-methylpyrrolidone according to claim 1, wherein the filtering mechanism (6) comprises a first hollow cylinder (61), the inner wall of the first through hole (4), the inner wall of the second through hole (5) and the inner wall of the second hollow cylinder (10) are all in contact with the surface of the first hollow cylinder (61), a baffle plate (62) is fixedly connected to the upper surface of the first hollow cylinder (61), the bottom of the baffle plate (62) is in contact with the upper surface of the indicating mechanism (9), a third through hole (63) is formed in the surface of the first hollow cylinder (61), a filtering cylinder (64) is fixedly connected to the inner wall of the first hollow cylinder (61), an internal thread ring (65) is fixedly connected to the inner wall of the filtering cylinder (64), and the internal thread ring (65) is located below the second hollow cylinder (10), the inner wall of the internal thread ring (65) is in threaded connection with an external thread block (66), the surface of the external thread block (66) is fixedly connected with a baffle ring (67), and the upper surface of the baffle ring (67) is in contact with the bottom of the filter cylinder (64).
3. The special anaerobic tank system for extracting N-methylpyrrolidone according to claim 2, characterized in that the indication mechanism (9) comprises a support ring (91), the upper surface of the support ring (91) is in contact with the bottom of the baffle (62), the bottom of the support ring (91) and the upper surface of the cover plate (2) are both fixedly connected with a spring (92), the front side and the rear side of the support ring (91) are both fixedly connected with a first U-shaped column (93), the front side and the rear side of the support ring (91) and the inner wall of the first U-shaped column (93) are both provided with a graduated scale (94) in an attached manner, and the bottom of the graduated scale (94) is fixedly connected with the upper surface of the cover plate (2).
4. The dedicated anaerobic pond system for extracting N-methylpyrrolidone according to claim 2, characterized in that a second U-shaped column (11) is fixedly connected to the upper surface of the baffle plate (62).
5. The special anaerobic pond system for extracting N-methylpyrrolidone according to claim 1, characterized in that a connecting column (12) is fixedly connected to the upper surface of the cover plate (2), a fixing ring (13) is fixedly connected to the upper surface of the connecting column (12), and the bottom of the fixing ring (13), the surface of the connecting column (12), the upper surface of the cover plate (2) and the surface of the first hollow cylinder (61) are provided with sealing rings (14) in a fitting manner.
6. The dedicated anaerobic pond system for the extraction of N-methylpyrrolidone according to claim 5, characterized in that the number of said connecting columns (12) is four and four connecting columns (12) are symmetrically distributed centering on the first hollow cylinder (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111171588.3A CN113735258B (en) | 2021-10-08 | 2021-10-08 | Special anaerobic tank system for extracting N-methylpyrrolidone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111171588.3A CN113735258B (en) | 2021-10-08 | 2021-10-08 | Special anaerobic tank system for extracting N-methylpyrrolidone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113735258A true CN113735258A (en) | 2021-12-03 |
| CN113735258B CN113735258B (en) | 2023-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111171588.3A Active CN113735258B (en) | 2021-10-08 | 2021-10-08 | Special anaerobic tank system for extracting N-methylpyrrolidone |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160326031A1 (en) * | 2014-01-06 | 2016-11-10 | King Abdullah University Of Science And Technology | Anaerobic electrochemical membrane bioreactor and process for wastewater treatment |
| CN208118185U (en) * | 2018-04-19 | 2018-11-20 | 杭龙 | Plastic granulator cooling water reflux lather booster |
| CN110255811A (en) * | 2019-05-31 | 2019-09-20 | 浙江水利水电学院 | A kind of distributing rural domestic sewage treating device and method |
| CN211328347U (en) * | 2020-06-29 | 2020-08-25 | 广州市政院环境净化工程有限公司 | Waste water treatment device for air detection station |
| CN213221167U (en) * | 2020-09-11 | 2021-05-18 | 广州沣凌环保技术有限公司 | Sewage pretreatment device convenient to clearance |
-
2021
- 2021-10-08 CN CN202111171588.3A patent/CN113735258B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160326031A1 (en) * | 2014-01-06 | 2016-11-10 | King Abdullah University Of Science And Technology | Anaerobic electrochemical membrane bioreactor and process for wastewater treatment |
| CN208118185U (en) * | 2018-04-19 | 2018-11-20 | 杭龙 | Plastic granulator cooling water reflux lather booster |
| CN110255811A (en) * | 2019-05-31 | 2019-09-20 | 浙江水利水电学院 | A kind of distributing rural domestic sewage treating device and method |
| CN211328347U (en) * | 2020-06-29 | 2020-08-25 | 广州市政院环境净化工程有限公司 | Waste water treatment device for air detection station |
| CN213221167U (en) * | 2020-09-11 | 2021-05-18 | 广州沣凌环保技术有限公司 | Sewage pretreatment device convenient to clearance |
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| CN113735258B (en) | 2023-07-21 |
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