CN112159009A - Based on urban ecological environment administers and uses sewage treatment plant - Google Patents
Based on urban ecological environment administers and uses sewage treatment plant Download PDFInfo
- Publication number
- CN112159009A CN112159009A CN202011007476.XA CN202011007476A CN112159009A CN 112159009 A CN112159009 A CN 112159009A CN 202011007476 A CN202011007476 A CN 202011007476A CN 112159009 A CN112159009 A CN 112159009A
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- disinfection
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- tank
- water outlet
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- 239000010865 sewage Substances 0.000 title claims abstract description 58
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 135
- 238000003860 storage Methods 0.000 claims abstract description 34
- 238000002347 injection Methods 0.000 claims abstract description 29
- 239000007924 injection Substances 0.000 claims abstract description 29
- 238000005507 spraying Methods 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 238000004659 sterilization and disinfection Methods 0.000 claims description 63
- 239000003153 chemical reaction reagent Substances 0.000 claims description 21
- 239000007921 spray Substances 0.000 claims description 12
- 238000009826 distribution Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 5
- 238000004062 sedimentation Methods 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 3
- 230000000249 desinfective effect Effects 0.000 abstract description 3
- 238000000746 purification Methods 0.000 abstract description 3
- -1 and simultaneously Substances 0.000 abstract 1
- 230000001954 sterilising effect Effects 0.000 description 8
- 238000001556 precipitation Methods 0.000 description 6
- 239000012535 impurity Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000006303 photolysis reaction Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000243 solution Substances 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
- C02F1/001—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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- 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
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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)
- Physical Water Treatments (AREA)
Abstract
The invention discloses a sewage treatment device for treating based on urban ecological environment, which comprises a water storage tank, a water injection assembly, a sealing tank cover, a spraying assembly, a disinfecting assembly, a water outlet tank, a grading water outlet plate and a water outlet pipe, wherein the sealing tank cover is fixedly arranged in the center of the top end surface of the water storage tank; this based on urban ecological environment administers and uses sewage treatment plant, the retaining is convenient, can once only handle a large amount of sewage, and simultaneously, sewage treatment is effectual, can effectively deposit, filter and disinfect sewage, effectively improves sewage purification's efficiency.
Description
Technical Field
The invention relates to the technical field of urban ecology, in particular to a sewage treatment device for treating urban ecological environment.
Background
The urban ecology is a network structure with certain functions formed by interaction of urban mankind and surrounding biological and non-biological environments, and is also a special artificial ecology established by mankind on the basis of modification and adaptation to natural environments; unlike natural ecology, urban ecology focuses on the interrelationship of urban humans and urban environments. In the process of human production and life, a large amount of sewage is generated, and urban ecology is seriously influenced by direct discharge of the sewage; it is usually necessary to treat the sewage by using a sewage treatment device and then discharge the sewage. The sewage treatment device in the prior art has small sewage treatment capacity, and in the treatment process, the sewage treatment efficiency is low, and impurities in the sewage are not easy to remove and difficult to precipitate, so that the sewage treatment effect is influenced, and therefore, the sewage treatment device for treating the urban ecological environment is necessary to design.
Disclosure of Invention
The invention aims to provide a sewage treatment device for urban ecological environment treatment, which is convenient for water storage, can treat a large amount of sewage at one time, has a good sewage treatment effect, can effectively precipitate, filter and disinfect the sewage, and effectively improves the sewage purification efficiency.
The purpose of the invention can be realized by the following technical scheme:
a sewage treatment device for treating based on urban ecological environment comprises a water storage tank, a water injection assembly, a sealing tank cover, a spraying assembly, a disinfecting assembly, a water outlet tank, graded water outlet plates and a water outlet pipe, wherein the sealing tank cover is fixedly installed in the center of the top end face of the water storage tank;
the spray assembly comprises a tank body base, a settling tank, a reagent pump, a reagent pipe, a water distribution pipe, spray pipes and a material guide pipe, wherein the tank body base is fixedly installed on one side of the top end face of the sealed tank cover through bolts, the settling tank is installed in the center of the top end face of the tank body base through welding, the reagent pump is installed on one side of the settling tank through pipeline connection, the reagent pipe is installed on one side of the reagent pump in a connected mode, the water distribution pipe is respectively installed on the top end face of the sealed tank cover through screw fixing, the material guide pipe is installed between the water distribution pipes in a connected mode, one end of the bottom of the water distribution pipe is connected with the spray pipes, and one end of each spray pipe penetrates through the inner.
As a further scheme of the invention: the water injection assembly comprises a pipeline bracket, a water inlet valve, a water injection pipe, a sewer pipe, a mounting base plate and a filter screen, the mounting base plate is fixedly mounted on one side of the top end face of the water storage box through bolts, the top end face of the mounting base plate is fixedly mounted with a plurality of pipeline brackets through bolts, the water injection pipe is connected and mounted between the pipeline brackets, one end of the water injection pipe is connected and mounted with the water inlet valve, one end of the bottom of the water injection pipe is connected and mounted with the sewer pipe, and the filter screen is fixedly mounted with the inner side bottom of the.
As a further scheme of the invention: one end of the sewer pipe is provided with a sewer opening, and the water outlet is positioned below the bottom of the filter screen.
As a further scheme of the invention: the pipeline bracket is characterized in that a fixed hoop is arranged on one side end face of the pipeline bracket and fixedly connected through screws, and the water injection pipe is fixedly installed inside the fixed hoop through screws.
As a further scheme of the invention: and one end of the bottom of the water diversion pipe is connected with a water diversion valve, and one end of the bottom of the water diversion pipe is connected with the water diversion pipe at the central position of the top end face of the sealing box cover.
As a further scheme of the invention: the disinfection subassembly includes disinfect box, ultraviolet ray disinfection lamp plate, disinfection pump, wiring end and disinfection pipe, the disinfect box passes through bolt fixed mounting in terminal surface one side of water storage box, and the opposite side of disinfect box passes through bolt and play water tank fixed connection, one side of disinfect box is provided with the disinfection pump, the terminal surface central authorities of disinfect box have the ultraviolet ray disinfection lamp plate through screw fixed mounting, and the both sides terminal surface of ultraviolet ray disinfection lamp plate all connects and installs the wiring end, the disinfection pipe is installed in pegging graft in the one end bottom of disinfect box, and the one end of disinfection pipe is located the top of play water tank.
As a further scheme of the invention: the sterilizing device is characterized in that a precipitation pipe is connected and installed on one side of the sterilizing pump, one end of the precipitation pipe is inserted and installed on the top of the inner side of the water storage tank, and the other side of the sterilizing pump is communicated with the inside of the sterilizing tank.
As a further scheme of the invention: and the center of the end surface of the grading water outlet plate is provided with a grading water outlet hole.
The invention has the beneficial effects that: this sewage treatment plant is used based on city ecological environment improvement, it is convenient to impound, when using, can once only handle a large amount of sewage through the water storage box, can make the medicament spray the inside of water storage box through spray assembly, make sewage deposit in the inside of water storage box, precipitation effect is good, and, impurity through passing through the filter screen can effective filtering aquatic, and disinfect through the inside that sewage after the disinfection subassembly will deposit carries the disinfect box, thereby effectively make the peculiar smell photodissociation disinfection in the sewage, the sewage rethread classification play water board discharge outside carries out subsequent processing, at whole sewage treatment's in-process, sewage treatment is effectual, can effectively deposit sewage, filter and disinfect, thereby effectively improve sewage purification's efficiency.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the reservoir of the present invention;
FIG. 3 is an enlarged view of the present invention A;
FIG. 4 is a schematic structural view of the water injection assembly of the present invention;
in the figure: 1. a water storage tank; 2. a water injection assembly; 3. sealing the box cover; 4. a spray assembly; 5. a sterilizing assembly; 6. a water outlet tank; 7. a grading water outlet plate; 8. a water outlet pipe; 21. a conduit bracket; 22. a water inlet valve; 23. a water injection pipe; 24. a sewer pipe; 25. mounting a bottom plate; 26. a filter screen; 41. a tank body base; 42. a settling tank; 43. a reagent pump; 44. a reagent tube; 45. a water diversion pipe; 46. a shower pipe; 47. a material guide pipe; 51. a sterilizing box; 52. an ultraviolet disinfection lamp panel; 53. a sterilizing pump; 54. a terminal; 55. and (4) sterilizing the tube.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-4, a sewage treatment device for treating urban ecological environment comprises a water storage tank 1, a water injection component 2, a sealed tank cover 3, a spraying component 4, a disinfection component 5, a water outlet tank 6, a grading water outlet plate 7 and a water outlet pipe 8, wherein the sealed tank cover 3 is fixedly installed in the center of the top end surface of the water storage tank 1, the spraying component 4 is fixedly installed in the center of the top end surface of the sealed tank cover 3, the spraying component 4 comprises a tank body base 41, a sedimentation tank 42, a reagent pump 43, a reagent pipe 44, a water distribution pipe 45, a spraying pipe 46 and a material guide pipe 47, the tank body base 41 is fixedly installed on one side of the top end surface of the sealed tank cover 3 through bolts, the sedimentation tank 42 is fixedly installed in the center of the top end surface of the tank body base 41 through welding, the reagent pump 43 is installed on one side of the sedimentation, the water diversion pipes 45 are fixedly installed on the top end face of the sealed box cover 3 through screws respectively, the material guide pipes 47 are installed between the water diversion pipes 45 in an inserted mode, one end of the bottom of each water diversion pipe 45 is connected with and provided with a plurality of spraying pipes 46, one end of each spraying pipe 46 penetrates through the sealed box cover 3 and is located on the top of the inner side of the water storage box 1, one end of the bottom of each water diversion pipe 45 is connected with and provided with a water diversion valve, and one end of the bottom of each water diversion pipe 45 is connected with the water diversion pipe 45 in the center of the top end face of; the water injection assembly 2 is fixedly installed on one side of the top end face of the water storage tank 1, the water injection assembly 2 comprises pipeline brackets 21, a water inlet valve 22, a water injection pipe 23, a sewer pipe 24, an installation bottom plate 25 and a filter screen 26, the installation bottom plate 25 is fixedly installed on one side of the top end face of the water storage tank 1 through bolts, the top end face of the installation bottom plate 25 is fixedly installed with a plurality of pipeline brackets 21 through bolts, the water injection pipe 23 is connected and installed between the pipeline brackets 21, one side end face of each pipeline bracket 21 is provided with a fixed hoop, the fixed hoops are fixedly connected through screws, and the water injection pipe 23 is fixedly installed inside the fixed hoops through screws, so that the water; one end of the water injection pipe 23 is connected with and installed with a water inlet valve 22, one end of the bottom of the water injection pipe 23 is connected with and installed with a sewer pipe 24, the filter screen 26 is fixedly installed at the bottom of the inner side of the water storage tank 1 through screws, one end of the sewer pipe 24 is provided with a sewer port, and a water outlet is positioned below the bottom of the filter screen 26, so that sewage can be conveniently filtered; the disinfection component 5 is fixedly installed on one side of the end face of the water storage tank 1, the water outlet tank 6 is connected and installed on one side of the outer portion of the disinfection component 5, the disinfection component 5 comprises a disinfection tank 51, an ultraviolet disinfection lamp panel 52, a disinfection pump 53, a wiring end 54 and a disinfection pipe 55, the disinfection tank 51 is fixedly installed on one side of the end face of the water storage tank 1 through bolts, the other side of the disinfection tank 51 is fixedly connected with the water outlet tank 6 through bolts, the disinfection pump 53 is arranged on one side of the disinfection tank 51, a precipitation pipe is connected and installed on one side of the disinfection pump 53, one end of the precipitation pipe is inserted and installed on the top of the inner side of the water storage tank 1, the other side of the disinfection pump 53 is communicated with the interior of the disinfection tank 51, and precipitated; an ultraviolet disinfection lamp panel 52 is fixedly installed in the center of the end face of the disinfection box 51 through screws, the end faces of the two sides of the ultraviolet disinfection lamp panel 52 are connected with wiring terminals 54, a disinfection pipe 55 is inserted and installed at the bottom of one end of the disinfection box 51, and one end of the disinfection pipe 55 is located above the top of the water outlet box 6; a plurality of grading water outlet plates 7 are fixedly arranged in the water outlet tank 6, and grading water outlet holes are formed in the centers of the end surfaces of the grading water outlet plates 7, so that grading filtration is facilitated, and the impurity removal effect is improved; the bottom of one end of the water outlet tank 6 is connected with a water outlet pipe 8.
The working principle of the invention is as follows: when the device is used, sewage to be treated is conveyed to the inside of the water storage tank 1 through the water injection assembly 2, a reagent is contacted with the sewage through the spray assembly 4 at the top of the sealed tank cover 3, so that the sewage can be precipitated and filtered, an external pipeline is connected and installed with the pipeline bracket 21 at the top of the installation base plate 25, so that the external sewage can be conveyed to the sewer pipe 24 through the water injection pipe 23, the flow of the sewage is changed by adjusting the water inlet valve 22 in the conveying process, the sewage is conveyed to the inside of the water storage tank 1 through the sewer port of the sewer pipe 24, impurities can be blocked at one side of the bottom of the water storage tank 1 through the filter screen 26, when the reagent pump 43 works, the reagent in the settling tank 42 at the top of the tank body base 41 can be conveyed into the water distribution pipes 45 at different positions through the reagent pipe 44 and the material guide pipe 47, and then the precipitated reagent, make impurity and precipitation reagent contact in the sewage, thereby can take place to deposit, sewage after the sediment is disinfected through disinfection subassembly 5, carry out the inside of outlet box 6 after disinfecting through disinfection subassembly 5, the inside of disinfection case 51 can be carried with the sewage of water storage box 1 inboard to the work of disinfection pump 53 of disinfection case 51 one side, connect the wiring end 54 and connect the electricity after, make ultraviolet ray disinfection lamp plate 52 can carry out ultraviolet ray disinfection to sewage, disinfect after a period, sewage passes through disinfection pipe 55 and carries outlet box 6's inside, can carry out the secondary through hierarchical outlet plate 7 and deposit, and finally discharge through outlet pipe 8, thereby accomplish the sediment of sewage, filter and the disinfection, be convenient for follow-up use.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. A sewage treatment device for treating urban ecological environment is characterized by comprising a water storage tank (1), a water injection assembly (2), a sealed tank cover (3), a spraying assembly (4), a disinfection assembly (5), a water outlet tank (6), a grading water outlet plate (7) and a water outlet pipe (8), a sealing box cover (3) is fixedly arranged in the center of the top end surface of the water storage box (1), a spray component (4) is fixedly arranged in the center of the top end surface of the sealing box cover (3), a water injection component (2) is fixedly arranged on one side of the top end surface of the water storage tank (1), a disinfection component (5) is fixedly arranged on one side of the end surface of the water storage tank (1), and one side of the outer part of the disinfection component (5) is connected with a water outlet tank (6), a plurality of grading water outlet plates (7) are fixedly arranged in the water outlet tank (6), the bottom of one end of the water outlet tank (6) is connected with a water outlet pipe (8);
the spray assembly (4) comprises a tank body base (41), a settling tank (42), a reagent pump (43), a reagent pipe (44), a water distribution pipe (45), a spray pipe (46) and a material guide pipe (47), wherein the tank body base (41) is fixedly installed on one side of the top end face of the sealed tank cover (3) through bolts, the settling tank (42) is installed in the center of the top end face of the tank body base (41) through welding and fixing, the reagent pump (43) is installed on one side of the settling tank (42) through pipeline connection, the reagent pipe (44) is installed on one side of the reagent pump (43), the water distribution pipe (45) is respectively fixedly installed on the top end face of the sealed tank cover (3) through bolts, the material guide pipe (47) is installed between the water distribution pipes (45) in an inserting mode, and one end of the bottom of the water distribution pipe (45) is connected, and one end of the spray pipe (46) penetrates through the sealed box cover (3) and is positioned at the top of the inner side of the water storage box (1).
2. The sewage treatment device for treating urban ecological environment according to claim 1, the water injection assembly (2) comprises a pipeline bracket (21), a water inlet valve (22), a water injection pipe (23), a sewer pipe (24), an installation bottom plate (25) and a filter screen (26), the mounting bottom plate (25) is fixedly mounted on one side of the top end surface of the water storage tank (1) through bolts, the top end surface of the mounting bottom plate (25) is fixedly provided with a plurality of pipeline brackets (21) through bolts, a water injection pipe (23) is connected and installed between the pipeline brackets (21), one end of the water injection pipe (23) is connected and installed with a water inlet valve (22), one end of the bottom of the water injection pipe (23) is connected with a sewer pipe (24), the filter screen (26) is fixedly provided with the inner bottom of the water storage tank (1) through screws.
3. The sewage treatment device for treating urban ecological environment according to claim 2, wherein one end of the downcomer (24) is provided with a downcomer opening, and the water outlet is positioned below the bottom of the filter screen (26).
4. The sewage treatment device for urban ecological environment treatment according to claim 2, wherein a fixing hoop is provided on one side end surface of the pipeline bracket (21), the fixing hoop is fixedly connected by a screw, and the water injection pipe (23) is fixedly installed inside the fixing hoop by a screw.
5. The sewage treatment device for urban ecological environment treatment according to claim 1, wherein a shunt valve is connected to one end of the bottom of the shunt pipe (45), and one end of the bottom of the shunt pipe (45) is connected to the shunt pipe (45) at the central position of the top end surface of the sealed box cover (3).
6. The sewage treatment device for treating urban ecological environment according to claim 1, the disinfection component (5) comprises a disinfection box (51), an ultraviolet disinfection lamp panel (52), a disinfection pump (53), a wiring terminal (54) and a disinfection pipe (55), the disinfection tank (51) is fixedly arranged on one side of the end surface of the water storage tank (1) through bolts, and the other side of the disinfection box (51) is fixedly connected with the water outlet box (6) through bolts, a disinfection pump (53) is arranged on one side of the disinfection box (51), an ultraviolet disinfection lamp panel (52) is fixedly arranged in the center of the end face of the disinfection box (51) through a screw, and the end surfaces of both sides of the ultraviolet disinfection lamp plate (52) are connected with wiring terminals (54), a disinfection pipe (55) is inserted and installed at the bottom of one end of the disinfection box (51), and one end of the disinfection tube (55) is positioned above the top of the water outlet tank (6).
7. The sewage treatment device for urban ecological environment treatment according to claim 6, wherein a sedimentation pipe is connected and installed on one side of the disinfection pump (53), one end of the sedimentation pipe is inserted and installed on the top of the inner side of the water storage tank (1), and the other side of the disinfection pump (53) is communicated with the inside of the disinfection tank (51).
8. The sewage treatment device for urban ecological environment treatment according to claim 1, wherein a grading water outlet hole is formed in the center of the end face of the grading water outlet plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011007476.XA CN112159009A (en) | 2020-09-23 | 2020-09-23 | Based on urban ecological environment administers and uses sewage treatment plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011007476.XA CN112159009A (en) | 2020-09-23 | 2020-09-23 | Based on urban ecological environment administers and uses sewage treatment plant |
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| Publication Number | Publication Date |
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| CN112159009A true CN112159009A (en) | 2021-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011007476.XA Pending CN112159009A (en) | 2020-09-23 | 2020-09-23 | Based on urban ecological environment administers and uses sewage treatment plant |
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2020
- 2020-09-23 CN CN202011007476.XA patent/CN112159009A/en active Pending
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| KR20180055354A (en) * | 2016-11-17 | 2018-05-25 | 박노옥 | The recycling device of laver washing water |
| CN206562307U (en) * | 2017-02-12 | 2017-10-17 | 东莞市滢源水处理设备有限公司 | A kind of water process water leg |
| CN206705761U (en) * | 2017-02-23 | 2017-12-05 | 天津德清科技有限公司 | A kind of novel sewage precipitation process tank |
| CN208327661U (en) * | 2018-04-27 | 2019-01-04 | 中广核环保产业有限公司 | A kind of countryside sewage treatment equipment |
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Application publication date: 20210101 |
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