CN112047569A - Artificial wetland device and sewage treatment method - Google Patents
Artificial wetland device and sewage treatment method Download PDFInfo
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- CN112047569A CN112047569A CN202010881297.2A CN202010881297A CN112047569A CN 112047569 A CN112047569 A CN 112047569A CN 202010881297 A CN202010881297 A CN 202010881297A CN 112047569 A CN112047569 A CN 112047569A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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- Filtration Of Liquid (AREA)
Abstract
The invention discloses an artificial wetland device, comprising: the slag receiving cylinder is vertically arranged; the filter cylinder is sleeved in the slag receiving cylinder, a strip-shaped water inlet is formed at the upper end of the filter cylinder, four edges of the strip-shaped water inlet extend upwards to form a baffle plate, and a first opening and a second opening are formed on the baffle plate corresponding to the two opposite short edges respectively; the filtering mechanism comprises a plurality of V-shaped connecting rods and a plurality of flexible filtering screens, the V-shaped connecting rods are fixed on a chain at intervals, the flexible filtering screens are fixed on two adjacent V-shaped connecting rods, the filtering mechanism sequentially penetrates through the first opening, the second opening and the through channel to form a loop in a range limited by the slag receiving barrel, the chain is also in power connection with a driving mechanism, and the moving direction of the chain faces to the opening direction of the V-shaped connecting rods; and (4) a spray head. The invention can filter the sewage by the cleaner part in real time, ensures the passing capacity of the sewage and does not need to consume a large amount of manpower for monitoring and managing.
Description
Technical Field
The invention relates to the field of sewage treatment. More particularly, the present invention relates to an artificial wetland device and a sewage treatment device.
Background
The artificial wetland is an artificially constructed wetland system and is used for treating sewage through chemical and biological actions. The current artificial wetland has the problem that solid waste in sewage blocks a wetland substrate layer after entering the artificial wetland, and the sewage treatment capacity of the artificial wetland is seriously damaged. Set up filter screen structure at sewage import and can alleviate the jam to a certain extent, but filter screen structure also can take place to block up in short time usually, needs the manual work to clear up filter screen structure constantly, wastes time and energy. Therefore, it is necessary to design an artificial wetland device and a sewage treatment method which can overcome the above defects to some extent.
Disclosure of Invention
An object of the present invention is to provide an artificial wetland device and a sewage treatment method, which can filter sewage in a relatively clean part in real time by using a filtering mechanism instead of a filter screen in the prior art, thereby ensuring the sewage throughput without requiring a large amount of labor for monitoring and management.
To achieve these objects and other advantages and in accordance with the purpose of the invention, according to one aspect of the present invention, there is provided an artificial wetland device comprising:
the slag receiving cylinder is vertically arranged;
the filter cartridge is sleeved inside the slag receiving cylinder, the middle part of the filter cartridge is hermetically connected with the lower end of the slag receiving cylinder, an annular space is formed between the upper part of the filter cartridge and the upper part of the slag receiving cylinder, the lower end of the filter cartridge extends into an artificial wetland matrix, first water filtering holes are distributed on the side wall of the part of the filter cartridge extending into the artificial wetland matrix, a strip-shaped water inlet is formed at the upper end of the filter cartridge, four sides of the strip-shaped water inlet extend upwards to form a baffle plate, a first opening and a second opening are respectively formed on the baffle plate corresponding to the two opposite short sides, a through channel is further formed in the middle part of the filter cartridge, the through channel is not communicated with the inside of the filter cartridge, and the first opening, the second opening and the channel correspond to each other in position;
the filtering mechanism comprises a plurality of V-shaped connecting rods and a plurality of flexible filtering nets, the V-shaped connecting rods are matched with the first openings in size, the V-shaped connecting rods are fixed on a chain at intervals, the flexible filtering nets are fixed on two adjacent V-shaped connecting rods, the filtering mechanism sequentially penetrates through the first openings, the second openings and the through channels to form a loop within a range limited by the slag receiving barrel, the chain is also in power connection with a driving mechanism, and the moving direction of the chain faces the opening direction of the V-shaped connecting rods;
and the spray head is arranged on the inner wall of the slag receiving barrel and used for washing the part of the filtering mechanism located in the annular space, and a second water filtering hole is formed above the connecting position of the side wall of the filter barrel and the slag receiving barrel.
Further, the constructed wetland device further comprises:
the mosquito-repellent incense comprises a base plate, a first spiral plate and a second spiral plate, wherein the first spiral plate and the second spiral plate are of mosquito-repellent incense structures, the starting point and the finishing point of the first spiral plate and the second spiral plate are respectively located at the edge of the base plate and the center of the base plate, the first spiral plate and the second spiral plate are vertically fixed on the surface of the base plate and are arranged at equal intervals at all positions, the first spiral plate and the second spiral plate surround a spiral first flow path and a spiral second flow path, a filter cartridge is located at the center of the base plate, one part of the first water filtering hole faces the first flow path, and the other part of the first water filtering hole faces the second flow path.
Furthermore, the artificial wetland device is characterized in that artificial wetland substrate layers are arranged in the first flow path and the second flow path, the artificial wetland substrate layers comprise a gravel layer, a coal gangue layer and a soil layer from bottom to top, the average particle size of the gravel layer is 2-4 cm, the average particle size of the coal gangue layer is 7-10 mm, and emergent aquatic plants are planted in the soil layer.
Further, the artificial wetland device is provided with a roller under the first opening and the second opening in a rotating manner, the roller supports the filtering mechanism, and the axis of the roller is perpendicular to the moving direction of the chain.
Furthermore, the drive mechanism of the artificial wetland device comprises a drive wheel, a driven wheel and a motor, wherein the drive wheel and the driven wheel are arranged in the annular space and are respectively meshed with the chain, and the motor drives the drive wheel.
Furthermore, the artificial wetland device is characterized in that a concave part is arranged on the bottom surface of the top of the V-shaped connecting rod, the chain penetrates through and is connected with the chain through the concave part, and the connecting position of the flexible filter screen is positioned in the middle of the V-shaped connecting rod and is higher than the concave part.
Furthermore, in the artificial wetland device, the size of the lower part of the deslagging cylinder is gradually reduced to form an inclined plane part, and a deslagging port is arranged at the inclined plane part.
Furthermore, the constructed wetland device at least comprises a water inlet mode and a slag removal mode, and when the constructed wetland device is in the water inlet mode, sewage is guided into the filter cylinder from the strip-shaped water inlet; when the filter mechanism is in the deslagging mode, the driving mechanism drives the filter mechanism to move, and the spray head washes the part of the filter mechanism passing through the annular space.
According to another aspect of the present invention, there is provided a sewage treatment method using the constructed wetland device to treat sewage.
The invention at least comprises the following beneficial effects:
the special filtering mechanism is designed, the filtering part can be replaced according to the requirement, and the non-filtering part can be cleaned, so that the sewage is filtered by the part with stronger filtering capacity in real time, the passing speed of the sewage is increased, the solid waste is prevented from being cleaned manually, and the labor cost is reduced.
Additional advantages, objects, and features of the invention 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 invention.
Drawings
FIG. 1 is a schematic structural diagram of one embodiment of the present invention;
FIG. 2 is a schematic diagram of the construction of a filter mechanism according to an embodiment of the present invention;
FIG. 3 is a top view of a filter cartridge in an embodiment of the present invention;
fig. 4 is a top view of one embodiment of the present invention.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1 to 3, an embodiment of the present application provides an artificial wetland device comprising: the slag receiving barrel 1 is vertically arranged; the filter cylinder 2 is sleeved inside the slag receiving cylinder 1, the middle part of the filter cylinder 2 is hermetically connected with the lower end of the slag receiving cylinder 1, an annular space is formed between the upper part of the filter cylinder 2 and the upper part of the slag receiving cylinder 1, the lower end of the filter cylinder 2 extends into an artificial wetland matrix, first water filtering holes 203 are distributed on the side wall of the part of the filter cylinder 2 extending into the artificial wetland matrix, a strip-shaped water inlet 201 is formed at the upper end of the filter cylinder 2, baffle plates 202 are formed by upwards extending four edges of the strip-shaped water inlet 201, a first opening and a second opening are respectively formed on the baffle plates 202 corresponding to two opposite short edges, a through channel is further formed in the middle part of the filter cylinder 2, the through channel is not communicated with the inside of the filter cylinder 2, and the positions of the first opening, the second opening and the channel correspond to each other; the filtering mechanism 4 comprises a plurality of V-shaped connecting rods 404 and a plurality of flexible filtering nets 405, the V-shaped connecting rods 404 are matched with the first openings in size, the V-shaped connecting rods 404 are fixed on a chain 403 at intervals, the flexible filtering nets 405 are fixed on two adjacent V-shaped connecting rods 404, the filtering mechanism 4 sequentially penetrates through the first openings, the second openings and the through channels to form a loop in a range limited by the slag receiving barrel 1, the chain 403 is further in power connection with a driving mechanism, and the moving direction of the chain 403 faces to the opening direction of the V-shaped connecting rods 404; and the spray head 7 is arranged on the inner wall of the slag receiving barrel 1 and used for washing the part of the filtering mechanism 4 positioned in the annular space, and a second water filtering hole 204 is formed above the connecting position of the side wall of the filter barrel 2 and the slag receiving barrel 1.
In the above embodiment, the slag receiving cylinder 1 and the filter cylinder 2 have different sizes and are sleeved together to form an annular space therebetween, the lower end of the filter cylinder 2 extends into the artificial wetland substrate layer, and the extending portion is formed with the first drainage hole 203 for allowing filtered sewage to enter the artificial wetland substrate layer, and optionally, the slag receiving cylinder 1 and the filter cylinder 2 are coaxially arranged. The upper end of the filter cartridge 2 is provided with a strip-shaped water inlet 201, four edges of the strip-shaped water inlet 201 extend upwards to form baffle plates 202, the baffle plates 202 corresponding to two opposite short edges are respectively positioned at two sides of the upper end of the filter cartridge 2 and are respectively provided with a first opening and a second opening, the middle part of the filter cartridge 2 is provided with a through channel, and the axes of the first opening, the second opening and the through channel are in a plane and form an annular path. The chain 403 is arranged along an annular path, the chain 403 is driven by a power mechanism to move along the annular path, V-shaped connecting rods 404 are arranged on the chain 403 at intervals, and the V-shaped connecting rods 404 are provided with flexible filter screens 405. Flexible filter screen 405 and V-arrangement connecting rod 404 can adopt flexible metal or polymer material to make, the hardness of V-arrangement connecting rod 404 is slightly more than flexible filter screen 405 to make things convenient for filter mechanism to move in the return circuit, through chain 403, V-arrangement connecting rod 404 and flexible filter screen 405, filter mechanism 4 can realize filtering the sewage that gets into bar water inlet 201, and can form the return circuit in the annular route, and can move as required, change the filtering part 401 that is located bar water inlet 201 top. The opening direction of the V-shaped connecting rod 404 is consistent with the movement direction of the filtering mechanism 4, on one hand, the V-shaped opening can carry more solid wastes, and on the other hand, the inclined planes at the two sides of the V shape also facilitate the solid wastes to slide into the annular space by means of dead weight. The spray head 7 is used for cleaning the non-filtering part 402 with a small amount of water, the source of the water of the spray head 7 can be sewage after artificial wetland treatment, and the second water filtering holes 204 filter the cleaning water into the filter cylinder 2.
When the artificial wetland sewage treatment device is used, sewage is introduced from a space surrounded by the four baffles 202, filtered by the flexible filter screen 405 on the filtering mechanism 4, enters the lower part of the filter cylinder 2 and enters the substrate layer of the artificial wetland from the first water filtering holes 203, and the artificial wetland treats the sewage; when not introducing sewage, utilize actuating mechanism to drive filtering mechanism 4 and move a section of distance in the return circuit, this distance can be set for according to bar open-ended length, and in filtering part got into the annular space, the solid waste of adhesion on filtering mechanism 4 fell into under the dead weight and connect a sediment section of thick bamboo 1, and shower nozzle 7 can also wash filtering mechanism 4, promotes the whereabouts of solid waste, and the non-filtering part before simultaneously gets into bar water inlet 201 top, filters the sewage that introduces next time. The cleaning water sprayed from the spray head 7 can enter the filter cartridge 2 through the second water filtering holes 204.
It can be seen that, the specially-made filtering mechanism 4 is designed in the embodiment, the filtering part 401 can be replaced as required, and the non-filtering part 402 is cleaned, so that sewage is filtered by the part with stronger filtering capacity in real time, the passing speed of the sewage is increased, the solid waste is prevented from being cleaned manually, and the labor cost is reduced.
In other embodiments, as shown in fig. 4, the mosquito incense water filter further comprises a bottom plate, a first spiral plate and a second spiral plate, wherein the first spiral plate and the second spiral plate are both in a mosquito incense shape, the starting point and the ending point of the first spiral plate and the second spiral plate are respectively located at the edge of the bottom plate and the center of the bottom plate, the first spiral plate and the second spiral plate are both vertically fixed on the surface of the bottom plate and are arranged at equal intervals, the first spiral plate and the second spiral plate enclose a spiral first flow path and a spiral second flow path, the filter cartridge 2 is located at the center of the bottom plate, one part of the first water filtering holes 203 face the first flow path, and the other part of the first water filtering holes 203 face the second flow path. In these embodiments, the details of the base plate, the first spiral plate and the second spiral plate can be seen in the patent of the applicant before, in this application, the lower end of the filter cylinder 2 is located in the center of the base plate, extends into the artificial wetland substrate layer in the center of the base plate, and is communicated with the first flow path and the second flow path, and the space utilization rate and the wetland substrate utilization rate can be greatly improved through the design of the first flow path and the second flow path.
In other embodiments, the first flow path and the second flow path are provided with artificial wetland substrate layers, the artificial wetland substrate layers comprise a gravel layer, a coal gangue layer and a soil layer from bottom to top, the average particle size of the gravel layer is 2-4 cm, the average particle size of the coal gangue layer is 7-10 mm, and emergent aquatic plants are planted in the soil layer. The subsurface flow wetland is easy to block, and the embodiments provide the optimal structure of the substrate of the subsurface flow wetland, so that sewage can be better filtered and intercepted, the function of the substrate can be fully exerted, and the treatment effect is improved.
In other embodiments, a roller 205 is rotatably disposed below the first opening and the second opening, the roller 205 supports the filter mechanism 4, an axis of the roller 205 is perpendicular to a moving direction of the chain 403, and the roller 205 can promote the circular movement of the filter mechanism 4.
In other embodiments, the driving mechanism comprises a driving wheel, a driven wheel 6 and a motor, the driving wheel and the driven wheel 6 are both arranged in the annular space and are respectively meshed with the chains 403, the motor drives the driving wheel, a plurality of driven wheels 6 can be arranged to play a role of tensioning the chains 403 and keeping the filtering mechanism 4 in a loop, the motor drives the driving wheel, and the motor can be arranged outside the slag removing cylinder.
In other embodiments, a concave portion is provided at the bottom surface of the V-shaped connecting rod 404 at the vertex, the chain 403 passes through and is connected with the chain 403 through the concave portion, and the flexible filter screen 405 is connected at the middle of the V-shaped connecting rod 404 and is higher than the concave portion. In these embodiments, the connection manner of the chain 403 and the recess, and the connection manner of the flexible filter screen 405 and the V-shaped connecting rod 404 may be an existing connection manner including a threaded connection, the recess is provided, so that the filtering mechanism 4 can be tightly attached to the strip-shaped water inlet 201, and the V-shaped connecting rod 404 is higher than the flexible filter screen 405, so that the flow of sewage to the first opening and the second opening can be reduced.
In other embodiments, the size of the lower portion of the slag removing cylinder is gradually reduced to form an inclined plane portion, the inclined plane portion is provided with a slag removing opening, the inclined plane portion facilitates the cleaning water sprayed by the spray head 7 to flow to the second water filtering holes 204, the slag removing opening facilitates the solid waste treatment at intervals, and preferably, a door is provided on the slag removing opening.
In other embodiments, at least a water inlet mode and a slag removal mode are included, and when in the water inlet mode, sewage is introduced into the filter cartridge 2 from the strip-shaped water inlet 201; when in the deslagging mode, the driving mechanism drives the filtering mechanism 4 to move, and the spray head 7 washes the part of the filtering mechanism 4 passing through the annular space. In the embodiments, the artificial wetland device can be controlled to switch between the water inlet mode and the slag removal mode through the existing control means, for example, after the water inlet mode continues to set a time interval, the sewage is stopped from being introduced, the slag removal mode is started, and after the slag removal mode is completed, the sewage is restarted.
The embodiment of the application also provides a sewage treatment method, the artificial wetland device is used for treating sewage, the sewage is introduced from the space surrounded by the four baffles 202, the sewage is filtered by the flexible filter screen 405 on the filter mechanism 4, enters the lower part of the filter cylinder 2 and enters the substrate layer of the artificial wetland from the first water filtering holes 203, and the artificial wetland treats the sewage; when not introducing sewage, utilize actuating mechanism to drive filtering mechanism 4 and move a section distance in the return circuit, the filter house gets into in the annular space, and the solid waste of adhesion on filtering mechanism 4 is in the dead weight whereabouts income and is connect a sediment section of thick bamboo 1, and shower nozzle 7 can also wash filtering mechanism 4, promotes the whereabouts of solid waste, and non-filter section gets into bar water inlet 201 top simultaneously, filters the sewage of next introduction.
The number of apparatuses and the scale of the process described herein are intended to simplify the description of the present invention. The application, modification and variation of the constructed wetland device and the sewage treatment method of the invention are obvious to those skilled in the art.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (9)
1. The constructed wetland device is characterized by comprising:
the slag receiving cylinder is vertically arranged;
the filter cartridge is sleeved inside the slag receiving cylinder, the middle part of the filter cartridge is hermetically connected with the lower end of the slag receiving cylinder, an annular space is formed between the upper part of the filter cartridge and the upper part of the slag receiving cylinder, the lower end of the filter cartridge extends into an artificial wetland matrix, first water filtering holes are distributed on the side wall of the part of the filter cartridge extending into the artificial wetland matrix, a strip-shaped water inlet is formed at the upper end of the filter cartridge, four sides of the strip-shaped water inlet extend upwards to form a baffle plate, a first opening and a second opening are respectively formed on the baffle plate corresponding to the two opposite short sides, a through channel is further formed in the middle part of the filter cartridge, the through channel is not communicated with the inside of the filter cartridge, and the first opening, the second opening and the channel correspond to each other in position;
the filtering mechanism comprises a plurality of V-shaped connecting rods and a plurality of flexible filtering nets, the V-shaped connecting rods are matched with the first openings in size, the V-shaped connecting rods are fixed on a chain at intervals, the flexible filtering nets are fixed on two adjacent V-shaped connecting rods, the filtering mechanism sequentially penetrates through the first openings, the second openings and the through channels to form a loop within a range limited by the slag receiving barrel, the chain is also in power connection with a driving mechanism, and the moving direction of the chain faces the opening direction of the V-shaped connecting rods;
and the spray head is arranged on the inner wall of the slag receiving barrel and used for washing the part of the filtering mechanism located in the annular space, and a second water filtering hole is formed above the connecting position of the side wall of the filter barrel and the slag receiving barrel.
2. The artificial wetland device of claim 1, further comprising:
the mosquito-repellent incense comprises a base plate, a first spiral plate and a second spiral plate, wherein the first spiral plate and the second spiral plate are of mosquito-repellent incense structures, the starting point and the finishing point of the first spiral plate and the second spiral plate are respectively located at the edge of the base plate and the center of the base plate, the first spiral plate and the second spiral plate are vertically fixed on the surface of the base plate and are arranged at equal intervals at all positions, the first spiral plate and the second spiral plate surround a spiral first flow path and a spiral second flow path, a filter cartridge is located at the center of the base plate, one part of the first water filtering hole faces the first flow path, and the other part of the first water filtering hole faces the second flow path.
3. The artificial wetland device of claim 2, wherein an artificial wetland substrate layer is arranged in the first flow path and the second flow path, the artificial wetland substrate layer comprises a gravel layer, a coal gangue layer and a soil layer from bottom to top, the average particle size of the gravel layer is 2-4 cm, the average particle size of the coal gangue layer is 7-10 mm, and emergent aquatic plants are planted in the soil layer.
4. The constructed wetland device according to claim 1, wherein a roller is rotatably arranged below the first opening and the second opening, the roller supports the filtering mechanism, and the axis of the roller is perpendicular to the moving direction of the chain.
5. The constructed wetland device of claim 1, wherein the driving mechanism comprises a driving wheel, a driven wheel and a motor, the driving wheel and the driven wheel are both arranged in the annular space and are respectively meshed with the chains, and the motor drives the driving wheel.
6. The constructed wetland device according to claim 1, wherein a concave part is arranged at the bottom surface of the vertex of the V-shaped connecting rod, the chain passes through and is connected with the chain through the concave part, and the flexible filter screen is connected at the middle part of the V-shaped connecting rod and is higher than the concave part.
7. The constructed wetland device according to claim 1, wherein the size of the lower part of the deslagging cylinder is gradually reduced to form an inclined plane part, and a deslagging port is arranged at the inclined plane part.
8. The constructed wetland apparatus of claim 1, comprising at least a water intake mode and a slag removal mode, wherein in the water intake mode, sewage is introduced into the filter cartridge from the strip-shaped water inlet; when the filter mechanism is in the deslagging mode, the driving mechanism drives the filter mechanism to move, and the spray head washes the part of the filter mechanism passing through the annular space.
9. A method for treating sewage, characterized in that the sewage is treated by using the artificial wetland device according to claim 1.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010881297.2A CN112047569B (en) | 2020-08-27 | 2020-08-27 | Artificial wetland device and sewage treatment method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010881297.2A CN112047569B (en) | 2020-08-27 | 2020-08-27 | Artificial wetland device and sewage treatment method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110174706A1 (en) * | 2010-01-21 | 2011-07-21 | Austin Russell | Systems and methods for water harvesting and recycling |
| US9556048B1 (en) * | 2015-10-22 | 2017-01-31 | Samuel S. Owings | Chain filter system of micro wetland cells and method of forming same |
| CN207532831U (en) * | 2017-11-01 | 2018-06-26 | 河北瑞龙生物科技有限公司 | A kind of extractor |
| CN110330108A (en) * | 2019-07-29 | 2019-10-15 | 贵州民族大学 | Integrated under-current artificial wetland sewage treatment method and equipment |
| CN110510746A (en) * | 2019-08-30 | 2019-11-29 | 中国水利水电科学研究院 | Constructed wetland device |
| CN209974436U (en) * | 2019-02-28 | 2020-01-21 | 四川中隆泰建设工程有限公司 | Water-saving emission-reducing system |
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2020
- 2020-08-27 CN CN202010881297.2A patent/CN112047569B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110174706A1 (en) * | 2010-01-21 | 2011-07-21 | Austin Russell | Systems and methods for water harvesting and recycling |
| US9556048B1 (en) * | 2015-10-22 | 2017-01-31 | Samuel S. Owings | Chain filter system of micro wetland cells and method of forming same |
| CN207532831U (en) * | 2017-11-01 | 2018-06-26 | 河北瑞龙生物科技有限公司 | A kind of extractor |
| CN209974436U (en) * | 2019-02-28 | 2020-01-21 | 四川中隆泰建设工程有限公司 | Water-saving emission-reducing system |
| CN110330108A (en) * | 2019-07-29 | 2019-10-15 | 贵州民族大学 | Integrated under-current artificial wetland sewage treatment method and equipment |
| CN110510746A (en) * | 2019-08-30 | 2019-11-29 | 中国水利水电科学研究院 | Constructed wetland device |
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