CN210974324U - Rural domestic sewage treatment device - Google Patents
Rural domestic sewage treatment device Download PDFInfo
- Publication number
- CN210974324U CN210974324U CN201921667431.8U CN201921667431U CN210974324U CN 210974324 U CN210974324 U CN 210974324U CN 201921667431 U CN201921667431 U CN 201921667431U CN 210974324 U CN210974324 U CN 210974324U
- Authority
- CN
- China
- Prior art keywords
- tank
- oxidation
- side wall
- domestic sewage
- water outlet
- 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.)
- Expired - Fee Related
Links
- 239000010865 sewage Substances 0.000 title claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 91
- 230000003647 oxidation Effects 0.000 claims abstract description 64
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 64
- 238000001914 filtration Methods 0.000 claims abstract description 31
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 28
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000001301 oxygen Substances 0.000 claims abstract description 24
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 24
- 238000004062 sedimentation Methods 0.000 claims abstract description 24
- 238000005276 aerator Methods 0.000 claims abstract description 22
- 239000000945 filler Substances 0.000 claims abstract description 18
- 241000894006 Bacteria Species 0.000 claims description 5
- 238000005273 aeration Methods 0.000 claims description 4
- 239000012510 hollow fiber Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 241000270295 Serpentes Species 0.000 claims 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 244000005700 microbiome Species 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 9
- 238000000354 decomposition reaction Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 230000000813 microbial effect Effects 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 239000012528 membrane Substances 0.000 description 2
- 206010066054 Dysmorphism Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001546 nitrifying effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Biological Treatment Of Waste Water (AREA)
Abstract
The utility model discloses a rural domestic sewage treatment device, including biological contact oxidation system, biological contact oxidation system includes filtering ponds, oxidation pond, sedimentation tank, disinfection pond and drainage tank, filtering ponds and domestic sewage's drainage system intercommunication, the even three grids that are equipped with in the filtering ponds, just the grid reduces from a left side to the size of right net in proper order, filtering ponds are located on the ground, the bottom of filtering ponds lateral wall is equipped with the delivery port, the delivery port department fixed mounting of filtering ponds has electric valve, the bottom of the left side wall of oxidation pond is equipped with the water inlet, the water inlet of oxidation pond passes through the water pipe and is connected with the delivery port of filtering ponds, be equipped with the biomembrane carrier filler in the oxidation pond. The utility model discloses a spherical biomembrane carrier packs, makes the biomembrane evenly abundant with the oxygen and the microorganism contact of water and aquatic, guarantees the treatment effect of sewage through the even supply pure oxygen of oxygen supply machine cooperation aerator.
Description
Technical Field
The utility model relates to a sewage treatment technical field, the concrete field is a rural domestic sewage treatment plant.
Background
The most common methods are an activated sludge method and a biological contact oxidation method, and the activated sludge method is always accompanied with the generation of sludge and air pressure in the treatment process and has certain danger, so the biological contact oxidation method is widely applied.
The flow of the biological contact oxidation method is relatively complex, and if the water distribution aeration is not uniform, microorganism dead zones are easy to appear, so that the drop of a microorganism film is caused, and the like, so the rural domestic sewage treatment device is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a rural domestic sewage treatment device to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a rural domestic sewage treatment device comprises a biological contact oxidation system, wherein the biological contact oxidation system comprises a filter tank, an oxidation tank, a sedimentation tank, a disinfection tank and a drainage tank;
the filtering tank is communicated with a domestic sewage drainage system, three grids are uniformly arranged in the filtering tank, the sizes of grids are sequentially reduced from left to right, the filtering tank is arranged on the ground, a water outlet is formed in the bottom of the side wall of the filtering tank, and an electric valve is fixedly installed at the water outlet of the filtering tank;
the bottom of the left side wall of the oxidation tank is provided with a water inlet, the water inlet of the oxidation tank is connected with a water outlet of the filter tank through a water pipe, a biomembrane carrier filler is arranged in the oxidation tank, an aerator is fixed on the right side wall of the oxidation tank and is connected with an exhaust device, the middle part of the right side wall of the oxidation tank is provided with a water outlet, an electric valve is arranged at the water outlet of the oxidation tank, and the volumes of the oxidation tank and the filter tank are the same;
the bottom of the side wall of one side of the sedimentation tank is provided with a water inlet, the water inlet of the sedimentation tank is connected with the water outlet of the oxidation tank through a water pipe, the top of the side wall of the other side of the sedimentation tank is provided with a water outlet, and a filter screen is arranged at the water outlet of the sedimentation tank;
the top of the side wall of the disinfection tank is uniformly provided with ultraviolet disinfection lamps, the ultraviolet disinfection lamps are electrically connected with a power supply, the top of the side wall of one side of the disinfection tank is provided with a water inlet, and the top of the side wall of the other side of the disinfection tank is also provided with a water outlet;
the bottom of the side wall of one side of the drainage pool is provided with a water inlet, the water inlet of the drainage pool is connected with a water outlet of the disinfection pool through a water pipe, the bottom of the side wall of the other side of the drainage pool is fixedly connected with a drainage device, and the oxidation pool, the sedimentation pool, the disinfection pool and the drainage pool are all arranged on the same horizontal plane;
and the electric valves are electrically connected with the MCU module.
Preferably, the biofilm carrier filler is a suspension spherical filler.
Preferably, the bottom of the oxidation pond is also fixedly connected with a cylindrical biological carrier, and anaerobic biological bacteria are carried on the biological carrier.
Preferably, the biofilm carrier filler is made of a hollow fiber material.
Preferably, the aerator is an aeration hose which is arranged on the side wall of the oxidation pond in a serpentine shape.
Preferably, the exhaust device is an oxygen supply machine, and the oxygen supply machine is electrically connected with the MCU module.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a biological contact oxidation method realizes the decomposition to organic matter in the domestic sewage, through spherical biomembrane carrier filler, has guaranteed the even contact of biomembrane and water, supplies the oxygen machine to be even in the oxidation pond through the aerator cooperation and supplies the pure oxygen, and the aerator of hose shape can effectually prevent the jam problem of aerator, realizes through MCU module control electric valve and oxygen supply machine the utility model discloses a quantitative timing sewage treatment and quantitative oxygen supply have guaranteed the utility model discloses a sewage treatment effect and sewage treatment efficiency reduce droing of microbial film. The utility model discloses a spherical biomembrane carrier packs, makes the biomembrane evenly abundant with the oxygen and the microorganism contact of water and aquatic, guarantees the treatment effect of sewage through the even supply pure oxygen of oxygen supply machine cooperation aerator.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the aerator of the present invention;
fig. 3 is a schematic diagram of the control system of the present invention.
In the figure: 1-a filter tank, 2-an oxidation tank, 3-a sedimentation tank, 4-a disinfection tank, 5-a drainage tank, 6-a grid, 7-a biomembrane carrier filler, 8-an aerator, 9-a biological carrier and 10-an ultraviolet disinfection lamp.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: a rural domestic sewage treatment device comprises a biological contact oxidation system, wherein the biological contact oxidation system comprises a filter tank 1, an oxidation tank 2, a sedimentation tank 3, a disinfection tank 4 and a drainage tank 5, and the biological contact oxidation system can be used independently or connected to other sewage treatment systems for matching;
the filtering tank 1 is communicated with a domestic sewage drainage system, domestic sewage such as kitchens, toilets and the like of residents is converged and then discharged into the filtering tank 1, three grids 6 are uniformly arranged in the filtering tank 1, the sizes of the grids 6 from left to right are sequentially reduced, the grids 6 are used for physically filtering the sewage, dregs and the like with different particle sizes in the sewage can be filtered by matching three grids 6, namely a thick grid 6, a middle grid 6 and a thin grid 6, the filtering tank is arranged on the ground, the filtering tank 1 needs to manually and periodically clean garbage among the grids 6, if the filtering tank is communicated with more drainage systems, the volume of the filtering tank 1 can be considered to be enlarged, and an automatic grid machine is arranged at the bottom of the side wall of the filtering tank 1 for matching with a subsequent system for use, an electric valve is fixed at the water outlet of the filtering tank 1, when the electric valve is opened, the water in the filter tank 1 flows into the oxidation tank 2 under the action of gravity and pressure, and after a certain time delay, the electric valve is closed;
the bottom of the left side wall of the oxidation pond 2 is provided with a water inlet, the water inlet of the oxidation pond 2 is connected with a water outlet of the filter pond 1 through a water pipe, the water inlet of the oxidation pond 2 is arranged at the bottom of the pond wall to reduce the impact of water flow on a biological membrane, a biological membrane carrier filler 7 is arranged in the oxidation pond 2, an aerator 8 is fixed on the right side wall of the oxidation pond 2, the aerator 8 is connected with an exhaust device, the exhaust device exhausts gas into the oxidation pond 2 through the aerator 8, the gas is specifically pure oxygen, the aerator 8 ensures more uniform gas distribution and forms vertical circulation, stirring and mixing are uniform, bubbles are small during air intake, the oxygen utilization rate and the power efficiency of the aerator 8 are also high, the middle part of the right side wall of the oxidation pond 2 is provided with a water outlet, an electric valve is fixed at the water outlet, when the electric valve is opened, water in the oxidation pond 2 flows into the sedimentation pond 3, a passage is formed between the water and a subsequent system, and the volume of the water in the oxidation pond 2 is the same as that of the water in the filtering pond 1;
a water inlet is formed in the bottom of the side wall of one side of the sedimentation tank 3, the water inlet of the sedimentation tank 3 is connected with a water outlet of the oxidation tank 2 through a water pipe, a water pump is further arranged between the sedimentation tank 3 and the water pipe connected with the oxidation tank 2 and is electrically connected with the MCU module, a water outlet is formed in the top of the side wall of the other side of the sedimentation tank 3, a filter screen is installed at the water outlet of the sedimentation tank 3, the oxidized water body flows into the sedimentation tank 3 for purification and sedimentation, and a fallen biomembrane or other flocculent impurities are filtered;
the top of the side wall of the disinfection tank 4 is uniformly provided with ultraviolet disinfection lamps 10, the ultraviolet disinfection lamps 10 are electrically connected with a power supply, the top of the side wall of one side of the disinfection tank 4 is provided with a water inlet, the top of the side wall of the other side of the disinfection tank 4 is also provided with a water outlet, and the ultraviolet disinfection lamps 10 work for twenty-four hours;
the bottom of the side wall of one side of the drainage pool 5 is provided with a water inlet, the water inlet of the drainage pool 5 is connected with a water outlet of the disinfection pool 4 through a water pipe, the bottom of the side wall of the other side of the drainage pool is fixedly connected with a drainage device, the water quality of the water flowing into the drainage pool 5 is basically recovered, the water can be recycled after being discharged through the drainage device, the drainage device can be specifically matched with a water pump, a water pipe and the like for use, and the oxidation pool 2, the sedimentation pool 3, the disinfection pool 4 and the drainage pool 5 are all arranged on the same horizontal plane;
referring to fig. 3, the electric valves are all electrically connected with the MCU module, the MCU module is connected with a power supply and is provided with a power switch, a working period is defined as a starting time by a time when the power switch is pressed, the MCU module can control the electric valve at the filtering tank 1 to be periodically opened to drain water into the system, a specific interval time is determined according to the size of the filtering tank 1 and a biological degradation period, after the electric valve at the filtering tank 1 is opened, the electric valve at the oxidation tank 2 is automatically opened after a period of time, and simultaneously, the water pump is started to drain water outwards, and the water in the oxidation tank 2 flows into a subsequent system and finally reaches the water drainage tank 5 for subsequent recycling.
Specifically, the biofilm carrier filler 7 is a suspended spherical filler, the biofilm carrier filler 7 floats in the water in the oxidation pond 2, the floating spherical biofilm carrier filler 7 is contacted with oxygen more uniformly, and the condition that the surface of the biofilm falls off due to insufficient oxygen is effectively avoided.
Specifically, the oxidation pond 2 is also provided with a cylindrical biological carrier 9, anaerobic biological bacteria are carried on the biological carrier 9, the anaerobic biological bacteria are specifically nitrifying bacteria and the like, and the decomposition and conversion of ammonia nitrogen elements in the sewage can be effectively carried out.
Specifically, the biofilm carrier filler 7 is a hollow fiber material which has good air permeability and hydrophobicity, so that microorganisms can be uniformly contacted with water and oxygen, and dead zones are prevented from being formed.
Referring to fig. 2, in detail, the aerator 8 is an aeration hose, which is arranged on the side wall of the oxidation pond in a serpentine shape, and has a thin wall with variable hole and slit self-closing performance, so as to solve the problem of blockage of the aerator.
Particularly, exhaust apparatus is an oxygen supply machine, and what the oxygen supply machine supplied with is the pure oxygen, improves the decomposition efficiency of microbial film to water organic matter, the oxygen supply machine is connected with MCU module electricity, and the oxygen supply machine is controlled by the MCU module, and the length of time of oxygen supply machine work reduces along with the lapse of cycle, and the water concentration is high at the cooperation initial stage, and the problem that oxygen demand is big, practices thrift the energy consumption simultaneously, reduce cost.
The working principle is as follows: the utility model discloses a: the utility model discloses a biological contact oxidation method realizes the decomposition to organic matter in the domestic sewage, through spherical biomembrane carrier filler 7, has guaranteed the even contact of biomembrane and water, supplies the oxygen machine to be even in oxidation pond 2 through 8 cooperations of aerator, and the aerator 8 of hose shape can effectually prevent the jam problem of aerator 8, realizes through MCU module control electric valve and oxygen supply machine the utility model discloses a quantitative timing sewage treatment and quantitative oxygen supply have guaranteed the utility model discloses a sewage treatment effect and sewage treatment efficiency reduce coming off of microbial film, the utility model discloses preset the treatment cycle, guaranteed the treatment effect of sewage, it is energy-concerving and environment-protective, have very big popularization nature.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including circuit connection adopts conventional connection mode among the prior art, does not detailed here again.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a rural domestic sewage treatment plant, includes biological contact oxidation system, its characterized in that: the biological contact oxidation system comprises a filter tank (1), an oxidation tank (2), a sedimentation tank (3), a disinfection tank (4) and a drainage tank (5);
the domestic sewage treatment device is characterized in that the filtering tank (1) is communicated with a domestic sewage drainage system, three grids (6) are uniformly arranged in the filtering tank (1), the sizes of grids (6) are sequentially reduced from left to right, the filtering tank (1) is arranged on the ground, a water outlet is formed in the bottom of the side wall of the filtering tank (1), and an electric valve is fixedly mounted at the water outlet of the filtering tank (1);
the bottom of the left side wall of the oxidation tank (2) is provided with a water inlet, the water inlet of the oxidation tank (2) is connected with a water outlet of the filter tank (1) through a water pipe, a biomembrane carrier filler (7) is arranged in the oxidation tank (2), an aerator (8) is fixed on the right side wall of the oxidation tank (2), the aerator (8) is connected with an exhaust device, the middle part of the right side wall of the oxidation tank (2) is provided with a water outlet, an electric valve is installed at the water outlet of the oxidation tank (2), and the volume of the oxidation tank (2) is the same as that of the filter tank (1);
a water inlet is formed in the bottom of the side wall of one side of the sedimentation tank (3), the water inlet of the sedimentation tank (3) is connected with a water outlet of the oxidation tank (2) through a water pipe, a water outlet is formed in the top of the side wall of the other side of the sedimentation tank (3), and a filter screen is installed at the water outlet of the sedimentation tank (3);
ultraviolet disinfection lamps (10) are uniformly arranged on the top of the side wall of the disinfection tank (4), the ultraviolet disinfection lamps (10) are electrically connected with a power supply, a water inlet is formed in the top of the side wall of one side of the disinfection tank (4), and a water outlet is also formed in the top of the side wall of the other side of the disinfection tank (4);
a water inlet is formed in the bottom of the side wall of one side of the drainage pool (5), the water inlet of the drainage pool (5) is connected with a water outlet of the disinfection pool (4) through a water pipe, a drainage device is fixedly connected to the bottom of the side wall of the other side of the drainage pool, and the oxidation pool (2), the sedimentation pool (3), the disinfection pool (4) and the drainage pool (5) are all arranged on the same horizontal plane;
and the electric valves are electrically connected with the MCU module.
2. The rural domestic sewage treatment device according to claim 1, wherein: the biomembrane carrier filler (7) is specifically a suspended spherical filler.
3. The rural domestic sewage treatment device according to claim 1, wherein: the bottom of the oxidation pond (2) is also fixedly connected with a cylindrical biological carrier (9), and anaerobic biological bacteria are carried on the biological carrier (9).
4. The rural domestic sewage treatment device according to claim 1, wherein: the biomembrane carrier filler (7) is made of a hollow fiber material.
5. The rural domestic sewage treatment device according to claim 1, wherein: the aerator (8) is specifically an aeration hose which is arranged on the side wall of the oxidation pond (2) in a snake shape.
6. The rural domestic sewage treatment device according to claim 1, wherein: the exhaust device is an oxygen supply machine, and the oxygen supply machine is electrically connected with the MCU module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921667431.8U CN210974324U (en) | 2019-10-08 | 2019-10-08 | Rural domestic sewage treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921667431.8U CN210974324U (en) | 2019-10-08 | 2019-10-08 | Rural domestic sewage treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210974324U true CN210974324U (en) | 2020-07-10 |
Family
ID=71420076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921667431.8U Expired - Fee Related CN210974324U (en) | 2019-10-08 | 2019-10-08 | Rural domestic sewage treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210974324U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113060911A (en) * | 2021-04-15 | 2021-07-02 | 杭州俊河环保科技有限公司 | Integrated medical sewage treatment system |
| CN113213698A (en) * | 2021-04-20 | 2021-08-06 | 南京益德清环保科技有限公司 | Deep oxidation method and device for medical wastewater |
-
2019
- 2019-10-08 CN CN201921667431.8U patent/CN210974324U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113060911A (en) * | 2021-04-15 | 2021-07-02 | 杭州俊河环保科技有限公司 | Integrated medical sewage treatment system |
| CN113213698A (en) * | 2021-04-20 | 2021-08-06 | 南京益德清环保科技有限公司 | Deep oxidation method and device for medical wastewater |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210974324U (en) | Rural domestic sewage treatment device | |
| CN111072230A (en) | Device for sewage treatment and treatment method thereof | |
| CN211595374U (en) | Sewage treatment equipment combining suspended biological membrane with deep filtration | |
| CN209721870U (en) | A kind of sanitary sewage multistage filtering processing unit | |
| CN210085200U (en) | Solar energy integration sewage treatment device | |
| CN208200687U (en) | A kind of organic wastewater integrated small equipment | |
| CN206940687U (en) | A kind of energy-saving water purifying device | |
| CN109319926A (en) | A kind of domestic sewage processing system | |
| CN211734112U (en) | Device for sewage treatment | |
| CN210103647U (en) | Be applied to rural domestic wastewater's processing apparatus | |
| CN110092548B (en) | Tubular rural domestic sewage and wastewater treatment device | |
| CN205170492U (en) | Domestic sewage purification system of unpowered aeration | |
| CN209493375U (en) | A kind of domestic sewage processing system | |
| CN211847595U (en) | Integrated aeration fixed bed system sewage treatment station device | |
| CN209493370U (en) | A kind of integral bio trickling filter | |
| CN209493463U (en) | A kind of four grid septic tanks | |
| CN2818472Y (en) | In situ composite reaction treater for domestic and fecal sewage | |
| CN2732849Y (en) | Device for reclaiming and reusing domestic waste water | |
| CN109320038A (en) | A kind of four grid septic tanks | |
| CN204454742U (en) | A kind of elevation declines power MBR device | |
| CN205635253U (en) | Intelligent sewage treatment system | |
| CN110590059A (en) | Rural domestic sewage low-cost sewage treatment system | |
| CN205035235U (en) | Practical waste water treatment energy -saving equipment | |
| CN221117256U (en) | Filter equipment that sewage treatment system used of registering one's residence | |
| CN219079291U (en) | Novel breed tail water processing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200710 |