CN216764510U - Handle rural domestic sewage's integrated filtration equipment - Google Patents
Handle rural domestic sewage's integrated filtration equipment Download PDFInfo
- Publication number
- CN216764510U CN216764510U CN202123434095.2U CN202123434095U CN216764510U CN 216764510 U CN216764510 U CN 216764510U CN 202123434095 U CN202123434095 U CN 202123434095U CN 216764510 U CN216764510 U CN 216764510U
- Authority
- CN
- China
- Prior art keywords
- water
- grid
- domestic sewage
- rural domestic
- blocking plate
- 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.)
- Active
Links
- 239000010865 sewage Substances 0.000 title claims abstract description 73
- 238000001914 filtration Methods 0.000 title claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 72
- 238000011010 flushing procedure Methods 0.000 claims abstract description 18
- 239000002893 slag Substances 0.000 claims abstract description 16
- 238000000926 separation method Methods 0.000 claims abstract description 15
- 238000011001 backwashing Methods 0.000 claims abstract description 11
- 230000000903 blocking Effects 0.000 claims description 18
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 4
- 239000010962 carbon steel Substances 0.000 claims description 4
- 230000003014 reinforcing Effects 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 14
- 238000010276 construction Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 description 12
- 238000004140 cleaning Methods 0.000 description 6
- 239000004519 grease Substances 0.000 description 4
- 239000002910 solid waste Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 206010047654 Vitreous floaters Diseases 0.000 description 2
- 238000005842 biochemical reaction Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 235000013361 beverage Nutrition 0.000 description 1
- 238000011030 bottleneck Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 230000002354 daily Effects 0.000 description 1
- 230000003203 everyday Effects 0.000 description 1
- 238000009114 investigational therapy Methods 0.000 description 1
- 239000010806 kitchen waste Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
Images
Abstract
The utility model provides an integrated filtering device for treating rural domestic sewage, which comprises a pool body, wherein a water inlet and a water outlet are respectively arranged at two ends of the pool body, and the integrated filtering device is sequentially arranged from the water inlet to the water outlet: the water-saving device comprises a water inlet pipe, a sediment basket, an oil separation plate, a water-blocking plate, a grid group, a backwashing device and a water outlet pipe, wherein the water-blocking plate is arranged at the bottom of the pool body, the width of the water-blocking plate is consistent with that of the pool body, the height of the water-blocking plate is smaller than that of the pool body, the backwashing device comprises a flushing pipeline, a valve for opening and closing the flushing pipeline and a slag collecting groove positioned at the bottom of the pool body, and a water outlet of the flushing pipeline is positioned on the upper portion of each grid in the grid group. The utility model has the advantages of good pretreatment and filtration effect, land occupation saving, short construction period, convenient installation and the like.
Description
Technical Field
The utility model relates to a sewage treatment device, in particular to integrated filtering equipment for treating rural domestic sewage, and belongs to the technical field of rural sewage treatment.
Background
In recent years, the discharge amount of domestic sewage in rural areas in China is on an increasing trend. According to investigation, about 6.04 million people live in countryside in China, and the daily domestic sewage is estimated to be about 5000 million cubic meters; on the other hand, the increasing development of rural economy also enables the water consumption and the water discharge of villages and towns to be increased continuously.
However, since the construction of village and town sewage collection and treatment facilities is relatively lagged with respect to cities, a large amount of village and town sewage is directly discharged every day because the sewage cannot be collected and treated. The sewage is accumulated in the environment for a long time and far exceeds the environmental capacity of the sewage discharged from rivers and lakes, so that most watershed water environments in China are polluted to different degrees, and the phenomena of 'polluted water all over the water', 'black and odorous water body' and the like are frequent, which becomes an important bottleneck for restricting ecological civilization construction of villages and towns in China.
The total population scale of rural areas in China is large, the residences are scattered, the economic development level is low, and the treatment of sewage in villages and towns is more complicated compared with the treatment of sewage in cities. No matter in a technical mode or a commercial mode, few mature modes suitable for sewage treatment of villages and towns in China are available for reference at home and abroad at present. Therefore, how to adopt a proper process, the problems of difficulty in village and town sewage treatment in China are systematically solved, village and town sewage collection treatment and resource utilization are promoted, and water environment quality of villages and towns and watersheds thereof is improved, which becomes a problem which needs to be faced and considered at present.
In addition, the domestic sewage of villages and small towns has the characteristics of wide sources and complex components, so that the sewage often contains a large amount of wastes (or floating objects) with large volumes, such as waste beverage bottles, waste packaging paper, waste paper towels, unoccluded kitchen waste and the like, and if the wastes enter a sewage treatment facility without effective pretreatment, a water pump is blocked, and the normal operation of the facility is directly influenced; the waste which is difficult to degrade enters a subsequent biochemical treatment tank, normal biochemical reaction is also influenced, the difficulty of sewage treatment is increased, and the effluent of the facility does not reach the standard. The existing pretreatment facilities of rural domestic sewage treatment terminals are disordered in specification and model due to the fact that the existing pretreatment facilities do not have uniform design specifications, and are difficult to match with the treatment scale of the sewage treatment terminals, so that the slag blocking efficiency is low; the filtering materials selected are not uniform, the gap design of the grid bars is unreasonable, the grid is easy to deform and not corrosion-resistant, the service life is short, the preferential interception of large-volume waste in sewage is difficult to realize, and the overall treatment function of the sewage treatment terminal is directly influenced.
Therefore, in order to standardize the construction and the reconstruction of rural domestic sewage treatment facilities and improve the sewage filtering effect, an integrated filtering device which has uniform specification and is suitable for treating rural domestic sewage is urgently needed.
SUMMERY OF THE UTILITY MODEL
Aiming at least one of the technical problems, the utility model provides integrated filtering equipment for treating rural domestic sewage, which is used for filtering and pretreating the rural domestic sewage.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a handle rural domestic sewage's integration filtration equipment, includes the cell body, and the both ends of cell body set up water inlet and delivery port respectively, set gradually to the delivery port direction by the water inlet: the water-saving device comprises a water inlet pipe, a sediment basket, an oil separation plate, a water-blocking plate, a grid group, a backwashing device and a water outlet pipe, wherein the water-blocking plate is arranged at the bottom of the pool body, the width of the water-blocking plate is consistent with that of the pool body, the height of the water-blocking plate is smaller than that of the pool body, the backwashing device comprises a flushing pipeline, a valve for opening and closing the flushing pipeline and a slag collecting groove positioned at the bottom of the pool body, and a water outlet of the flushing pipeline is positioned on the upper portion of each grid in the grid group.
In the utility model, the agricultural sewage enters from the water inlet of the integrated filtering equipment, sequentially passes through the sediment lifting basket, the oil separation plate and the water blocking plate, removes precipitable substances and suspended grease in the sewage, and raises the water level through the blocking effect of the water blocking plate, so that the sediment lifting basket has a better sediment effect on one hand, and the effect of blocking floaters of a subsequent grid group is enhanced on the other hand; and then, the remaining suspended impurities in the sewage are removed through the interception treatment of the grid group arranged in the filtering tank, the treated sewage is discharged from the outlet of the integrated filtering equipment, the particulate matters in the sewage can be effectively intercepted and flushed into a slag collecting groove by a back flushing device at the later stage to be discharged, and the treated sewage is discharged from the water outlet of the integrated filtering equipment.
Further, the ratio of the height of the water-blocking plate to the height of the pool body is 1: 1.2-5. The height of the water-blocking plate is adjusted to adjust the water flow speed of the sewage, so that the time of sediment and the time of filtering solid waste by the grid group are adjusted, and the best effect of sewage treatment is achieved.
Further, the ratio of the height of the water-blocking plate to the height of the pool body is 1: 2-3.
The height of the water-blocking plate is adjusted to adjust the water flow speed of the sewage, so that the time of sediment and the time of filtering solid waste by the grid group are adjusted, and the best effect of sewage treatment is achieved.
Furthermore, the grid group comprises a thick grid and a thin grid which are sequentially arranged from the water inlet to the water outlet, the gap between the grid bars of the thick grid is 16-25 mm, and the gap between the grid bars of the thin grid is 5-10 mm. According to the characteristics of solid wastes in the agricultural sewage, a grid group formed by the coarse grids and the fine grids and corresponding grid strip gaps are arranged, so that the effect of the grids for intercepting the wastes is the best.
Furthermore, the coarse grating and/or the fine grating are obliquely arranged, and the included angle between the coarse grating and/or the fine grating and the direction of the water outlet at the bottom edge of the pool body is 60-90 degrees. And optimizing the effect of intercepting the waste by the grating.
Further, the upper ends of the coarse grids and/or the fine grids are connected to the tank body through mounting pieces, the lower ends of the coarse grids and/or the fine grids form free ends, and the heights of the upper ends of the coarse grids and/or the fine grids are adjustable. The inclination angle of the coarse grating and/or the fine grating is adjusted by adjusting the installation height of the coarse grating and/or the fine grating, the structure is simple, and the operation is convenient.
Further, an oil suction part is arranged on one side, facing the water inlet, of the oil separation plate. The oil absorption component is arranged on the oil separation plate, so that the adsorption capacity to suspended oil can be improved, and the oil absorption component is arranged, so that the oil separation plate is convenient to clean and replace.
Furthermore, the sediment lifting basket is movably arranged in the tank body through a pair of clamping plates, and the height of the clamping plates is smaller than that of the tank body, so that the top and the bottom of the clamping plates are separated from the top and the bottom of the tank body by a set distance. The sediment lifting basket is movably arranged in the tank body, so that the sediment lifting basket is convenient to clean, maintain and replace.
Further, a reinforcing plate is arranged along the outer side wall of the pool body. The utility model is more firm and durable.
Furthermore, the tank body is made of carbon steel, and the sediment lifting basket, the clamping plate, the water blocking plate, the oil separation plate and the grid group are made of stainless steel. The utility model is firmer and more durable, and meets the requirements of economy and durability.
Compared with the prior art, the utility model has the advantages that:
1. the integrated filtering equipment is designed into an integrated unified structure, so that sewage sequentially passes through the sediment lifting basket, the oil separating plate and the water blocking plate to remove precipitable substances and suspended grease in the sewage, and the water level is improved through the blocking effect of the water blocking plate, so that the sediment lifting basket has a good sediment effect on one hand, and the effect of blocking floaters of a subsequent grid set is enhanced on the other hand; and then, the rest suspended impurities in the sewage are removed through the interception treatment of the grid group arranged in the filtering tank, the treated sewage is discharged from the outlet of the integrated filtering equipment, the particulate matters in the sewage can be effectively intercepted and flushed into a slag collecting groove by a back washing device at the later stage to be discharged, and the treated sewage is discharged from the water outlet of the integrated filtering equipment.
2. The sediment basket and the oil separation plate are arranged in the equipment, so that suspended grease in sewage can be removed, and later operation and maintenance cleaning is facilitated.
3. The grid group and the back washing device are arranged in the equipment, so that the double interception of large-volume wastes in sewage can be effectively realized, the grids can be timely cleaned, and the deslagging efficiency of the equipment is ensured. In addition, the utility model can mount the grating group at any angle between 60 degrees and 90 degrees according to the treatment requirements of sewage with different volumes so as to realize effective interception of waste, stabilize the quality of domestic sewage and ensure the orderly operation of subsequent biochemical reactions.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.
Drawings
FIG. 1 is a plan view of the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
FIG. 3 is a side view of the present invention;
FIG. 4 is a schematic view of the flush water pipe of the backwash assembly of the present invention;
in the figure, a tank body 100; a water inlet 101; a water outlet 102; a water inlet pipe 1; a sediment basket 2; an oil baffle 3; a water-blocking plate 4; a grid group 5, a coarse grid 51, a fine grid 52; the backwashing device 6, the flushing pipeline 61, the valve 62 and the slag collecting tank 63; a water outlet pipe 7; a mounting member 8; a chucking plate 9; a reinforcing plate 10.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
As shown in FIGS. 1-4, the integrated filtration apparatus for treating rural domestic sewage comprises a tank body 100, wherein a water inlet 101 and a water outlet 102 are respectively arranged at two ends of the tank body, and the water inlet 101 and the water outlet 102 are sequentially arranged in the direction from the water inlet 101 to the water outlet 102: the device comprises a water inlet pipe 1, a sediment basket 2, an oil separation plate 3, a water blocking plate 4, a grid group 5, a back washing device 6 and a water outlet pipe 7, wherein the water blocking plate 4 is arranged at the bottom of the tank body, the width of the water blocking plate is consistent with that of the tank body, and the height of the water blocking plate 4 is smaller than that of the tank body. As a preferred and specific embodiment, the ratio of the height of the water-blocking plate to the height of the tank body is between 1:1.2 and 5, preferably 1:2 and 3, in this embodiment the ratio of the height of the water-blocking plate to the height of the tank body is about 1: 2.5. The height of the water-blocking plate is adjusted to adjust the water flow speed of the sewage, so that the time of sediment and the time of filtering solid waste by the grid group are adjusted, and the best effect of sewage treatment is achieved.
As a preferable and specific embodiment, the grid set 5 comprises a thick grid 51 and a thin grid 52 which are sequentially arranged from a water inlet to a water outlet, wherein the gap between the grids of the thick grid 51 is 16 mm-25 mm, and the gap between the grids of the thin grid 52 is 5 mm-10 mm.
The coarse grating 51 and the fine grating 52 are obliquely arranged, at least one of the coarse grating 51 and the fine grating 52 can be obliquely arranged, of course, the coarse grating 51 and the fine grating 52 can also be obliquely arranged, in the embodiment, the included angle α between the coarse grating and the fine grating and the direction of the water outlet at the bottom edge of the tank body is 60-90 degrees, as shown in fig. 2, and the arrangement can optimize the effect of the grating on intercepting waste.
The gaps and the installation angles of the grid bars of the grating are adapted to the volume of the water passing to realize the effective interception of the waste in the sewage.
As a concrete realization mode of adjusting the inclination angles of the coarse grating and the fine grating, the upper ends of the coarse grating and the fine grating are connected to the pool body through the mounting part 8, the lower ends of the coarse grating and the fine grating form free ends respectively, the heights of the upper ends of the coarse grating and the fine grating can be adjusted, if the mounting part 8 is provided with an adjusting belt and an adjusting buckle, the upper ends of the coarse grating and the fine grating are connected with the adjusting belt, and the heights of the upper ends of the coarse grating and the fine grating can be adjusted by adjusting the length of the adjusting belt through the adjusting buckle, so that the inclination angles of the coarse grating and the fine grating can be adjusted.
As a specific implementation manner, the backwashing device 6 includes a flushing pipe 61, a valve 62 for controlling the opening and closing of the flushing pipe, and a slag collecting groove 63 located at the bottom of the tank body, and a water outlet of the flushing pipe is located at the upper part of each grid in the grid set, as shown in fig. 2. Later-stage operation and maintenance personnel regularly perform back flushing on the grid set, and grid slag adhered to the grid set is flushed and fallen off by a back flushing device and flushed into a slag collecting groove; and the operation and maintenance personnel clear the slag collecting groove to ensure the normal slag blocking efficiency of the equipment.
In order to obtain better implementation effect, an oil suction part is arranged on one side of the oil separation plate 3 facing the water inlet. The oil absorption component is arranged on the oil separation plate, so that the adsorption capacity to suspended oil can be improved, and the oil absorption component is arranged, so that the oil separation plate is convenient to clean and replace.
In order to obtain better implementation effect and facilitate later cleaning, maintenance, replacement and the like, the sediment lifting basket 2 is movably arranged in the tank body through a pair of clamping plates 9, and the height of the clamping plates 9 is smaller than that of the tank body, so that the top and the bottom of the clamping plates 9 are separated from the top and the bottom of the tank body by a set distance, as shown in fig. 1 and 2.
For better implementation, a reinforcing plate 10 is disposed along the outer side wall of the tank body.
As a specific implementation manner, the tank body 100 is made of carbon steel, and the carbon steel has the advantages of firmness, durability and moderate price; the sediment lifting basket 2, the pair of clamping plates 9, the water blocking plate 4, the oil separating plate 3 and the grid group 5 are made of stainless steel materials, and the stainless steel materials have higher corrosion resistance.
The working process and working principle of the utility model are as follows:
rural domestic sewage gets into from the water inlet of integration filtration equipment, and rural domestic sewage's flow direction is as shown by the arrow in fig. 1, 2, 4, at first through sediment hand-basket and oil removal board, gets rid of partial suspension debris and the suspension grease in the sewage, and through the grid group interception processing that sets up in the filtering pond again, the particulate matter in the sewage can be effectively held back, and the sewage after the processing is discharged from the delivery port of integration filtration equipment. Later-stage operation and maintenance personnel regularly perform back flushing operation on the grid set, and grid slag adhered to the grid set is flushed and fallen off by a back flushing device and flushed into a slag collecting groove; and the operation and maintenance personnel clear the slag collecting groove to ensure the normal slag blocking efficiency of the equipment.
In the utility model, the treatment capacity of the integrated filtering equipment is matched with the scale of the existing rural domestic sewage treatment facility, and the integrated filtering equipment can be divided into two specifications of less than or equal to 100t/d and more than 100t/d and less than 200 t/d.
The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.
Claims (10)
1. The utility model provides a handle rural domestic sewage's integration filtration equipment, includes the cell body, and the both ends of cell body set up water inlet and delivery port respectively, set gradually to the delivery port direction by the water inlet: the water-saving device comprises a water inlet pipe, a sediment basket, an oil separation plate, a water-blocking plate, a grid group, a backwashing device and a water outlet pipe, wherein the water-blocking plate is arranged at the bottom of the pool body, the width of the water-blocking plate is consistent with that of the pool body, the height of the water-blocking plate is smaller than that of the pool body, the backwashing device comprises a flushing pipeline, a valve for opening and closing the flushing pipeline and a slag collecting groove positioned at the bottom of the pool body, and a water outlet of the flushing pipeline is positioned on the upper portion of each grid in the grid group.
2. The integrated filter equipment for treating rural domestic sewage according to claim 1, wherein: the ratio of the height of the water-blocking plate to the height of the pool body is 1: 1.2-5.
3. The integrated filter equipment for treating rural domestic sewage according to claim 2, wherein: the ratio of the height of the water-blocking plate to the height of the pool body is 1: 2-3.
4. The integrated filter equipment for treating rural domestic sewage according to claim 1, wherein: the grid group comprises a thick grid and a thin grid which are sequentially arranged from a water inlet to a water outlet, the grid strip gap of the thick grid is 16-25 mm, and the grid strip gap of the thin grid is 5-10 mm.
5. The integrated filter equipment for treating rural domestic sewage according to claim 4, wherein: the coarse grating and/or the fine grating are/is obliquely arranged, and the included angle between the coarse grating and/or the fine grating and the direction of the water outlet at the bottom edge of the tank body is 60-90 degrees.
6. The integrated filter equipment for treating rural domestic sewage according to claim 5, wherein: the upper ends of the coarse grids and/or the fine grids are connected to the pool body through mounting pieces, the lower ends of the coarse grids and/or the fine grids form free ends, and the heights of the upper ends of the coarse grids and/or the fine grids are adjustable.
7. The integrated filter equipment for treating rural domestic sewage according to claim 1, wherein: and an oil absorption part is arranged on one side of the oil separation plate facing the water inlet.
8. The integrated filter equipment for treating rural domestic sewage according to claim 1, wherein: the sediment lifting basket is movably arranged in the tank body through a pair of clamping plates, and the height of the clamping plates is smaller than that of the tank body, so that the top and the bottom of the clamping plates are separated from the top and the bottom of the tank body by a set distance.
9. The integrated filter equipment for treating rural domestic sewage according to claim 1, wherein: and a reinforcing plate is arranged along the outer side wall of the pool body.
10. The integrated filter equipment for treating rural domestic sewage according to claim 1, wherein: the tank body is made of carbon steel, and the sediment lifting basket, the clamping plate, the water blocking plate, the oil separation plate and the grid group are made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123434095.2U CN216764510U (en) | 2021-12-30 | 2021-12-30 | Handle rural domestic sewage's integrated filtration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123434095.2U CN216764510U (en) | 2021-12-30 | 2021-12-30 | Handle rural domestic sewage's integrated filtration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216764510U true CN216764510U (en) | 2022-06-17 |
Family
ID=81970535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123434095.2U Active CN216764510U (en) | 2021-12-30 | 2021-12-30 | Handle rural domestic sewage's integrated filtration equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216764510U (en) |
-
2021
- 2021-12-30 CN CN202123434095.2U patent/CN216764510U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205635187U (en) | Aquaculture sewage pretreatment equipment | |
| CN104973711B (en) | Sewage impurity separation method | |
| CN201111439Y (en) | Domestic filtering purifier | |
| CN216764510U (en) | Handle rural domestic sewage's integrated filtration equipment | |
| CN201361493Y (en) | Dirt deposition water purifying device of household life waste water collecting, recycling and de-oiling | |
| CN212833326U (en) | Construction site sewage treatment system | |
| CN212141754U (en) | Novel sewage treatment device for ecological environment treatment | |
| CN201495139U (en) | Water-cleaning sewage treatment device | |
| CN208250052U (en) | A kind of circulation water closed operation zero discharge treatment equipment | |
| CN207973606U (en) | A kind of integrative water purifying device | |
| CN207046991U (en) | A kind of environment protection sewage processing unit | |
| CN105113583A (en) | Water-saving sanitary ware | |
| CN212770287U (en) | Back flushing type slag separating and oil removing device | |
| CN211311101U (en) | Aluminum purification wastewater treatment system | |
| CN211255630U (en) | Vehicular domestic sewage treatment equipment | |
| CN217526558U (en) | Duplex cylindrical sewage filtering and separating device for withdrawal and straightening liquid of galvanized plate | |
| CN217809128U (en) | Rural area source separation back waste water microgrid preprocessing device | |
| CN208200685U (en) | A kind of environmental protection sewage-treatment plant | |
| CN214738422U (en) | Multifunctional rainwater recycling device | |
| CN216223315U (en) | Suspension filter device | |
| CN113636689B (en) | Micro-vortex flocculation suspension quick filtering device | |
| CN210635807U (en) | Small-size sewage treatment plant of intelligent efficient | |
| CN213977205U (en) | Integrated grey water sedimentation and filtration device | |
| CN2644409Y (en) | Water supply treatment facilities | |
| CN2575166Y (en) | Apparatus for using purified water at any time or flushing toilet with secondary water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |