CN113620461A - Air-floating type efficient circulating filtration and purification system for landscape water - Google Patents
Air-floating type efficient circulating filtration and purification system for landscape water Download PDFInfo
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- CN113620461A CN113620461A CN202110914786.8A CN202110914786A CN113620461A CN 113620461 A CN113620461 A CN 113620461A CN 202110914786 A CN202110914786 A CN 202110914786A CN 113620461 A CN113620461 A CN 113620461A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 183
- 238000001914 filtration Methods 0.000 title claims abstract description 41
- 238000000746 purification Methods 0.000 title claims abstract description 20
- 239000003814 drug Substances 0.000 claims abstract description 22
- 238000001556 precipitation Methods 0.000 claims abstract description 20
- 239000002893 slag Substances 0.000 claims description 18
- 239000010802 sludge Substances 0.000 claims description 12
- 238000005188 flotation Methods 0.000 claims description 7
- 208000034699 Vitreous floaters Diseases 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims description 2
- 238000007790 scraping Methods 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000007774 longterm Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 17
- 239000007788 liquid Substances 0.000 description 9
- 239000002245 particle Substances 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 241000195493 Cryptophyta Species 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 230000005791 algae growth Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 235000008935 nutritious Nutrition 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- -1 leaves Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Images
Classifications
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- 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
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
Abstract
The application relates to the technical field of environmental water treatment, in particular to an air-floating type efficient circulating filtration and purification system for landscape water, which comprises a water collecting pipe and a water collecting pump for extracting landscape water, and further comprises a primary filtering device, a medicine adding device, a tubular flocculator, an air compressor, an air dissolving pump, an air floating treatment device, a precipitation water tank and a bag type filter, wherein the water collecting pipe is connected with the primary filtering device, the effluent of the primary filtering device and the effluent of the medicine adding device are connected with the tubular flocculator respectively, the effluent of the tubular flocculator is connected with the air floating treatment device, the air compressor is sequentially connected with the air dissolving pump and the air floating treatment device, the effluent of the air floating treatment device is connected with the air dissolving pump and the precipitation water tank in parallel, the upper effluent of the precipitation water tank is connected with the bag type filter, and the effluent of the bag type filter is discharged as landscape water. The application provides an air supporting formula landscape water high efficiency circulating filtration purification system that can effectively and high-efficiently purify landscape water to can long-term operation.
Description
Technical Field
The application relates to the technical field of environmental water treatment, in particular to an air-floating efficient circulating, filtering and purifying system for landscape water.
Background
The causes of landscape water pollution are roughly as follows: firstly, the landscape water is a pool of dead water, has no fluidity, has poor reoxygenation capability and weak capability of biologically oxidizing organic matters, so that the self-purification capability of the water body is poor; secondly, external pollution, such as discharge of garbage, scraps, flying dust, leaves, pollutants brought by rainwater and other waste water, and the like, wherein the substances are rotten, diffused, dissolved and precipitated in water to generate or directly bring a large amount of organic and inorganic substances, so that the water quality is further deteriorated; thirdly, the organisms for purifying the water quality in the landscape water body are single, and corresponding biological chains are not formed, so that the organisms with purification capacity are difficult to grow; and fourthly, due to endogenous pollution of landscape water, a plurality of originally harmless substances enter the water body and sink into the sediment, and after a period of time, chemical reactions occur among the harmless substances to generate harmful pollutants, so that the water body is further deteriorated.
The existing landscape water body purification process is divided into two main methods according to the characteristics:
the closed matter internal circulation method includes chemical method, microbe purifying method, ultrasonic purifying method, contact oxidation method, etc. the method can suppress algae growth with chemical agent, inhibit algae through microbe decomposition, kill algae with ultrasonic wave, etc. although the method can suppress algae growth and propagation in short time, as time goes on, plant nutrient matter, such as nitrogen, phosphorus, etc. in landscape water body always realize internal matter circulation in water and water bottom and can not migrate out of water body, so that landscape water body is gradually eutrophicated. The landscape water body adopting the method has poor water quality generally or the later-period operation management cost is very high.
The open matter outer circulation method includes wet land method, air floating method, filtering method or other comprehensive treatment method, and features that the plant nutritious matters, such as nitrogen, phosphorus and other matters, in landscape water are migrated from water in different modes to make landscape water gradually become poor nutritious state. However, because of the difference of the processes and the difference of the efficiency of each process treatment unit, the early investment cost, the operation management difficulty and the water quality of various treatment methods have great differences.
In view of the above, there is a need for an air-floating efficient circulating filtration and purification system for landscape water, which can effectively and efficiently purify landscape water and can operate for a long time.
Disclosure of Invention
In order to solve the problem that present view water processing system can not high-efficient purification view water and long-term operation, this application provides an air supporting formula view water high efficiency circulation filtration clean system.
The application provides an air supporting formula landscape water high efficiency circulation filtration clean system adopts following technical scheme:
the air-floating type landscape water efficient circulating, filtering and purifying system comprises a water collecting pipe and a water collecting pump for extracting landscape water, and further comprises a primary filtering device, a medicine adding device, a tubular flocculator, an air compressor, a dissolved air pump, an air floating treatment device, a precipitation water tank and a bag type filter, wherein the water collecting pipe is connected with the primary filtering device, the effluent of the primary filtering device and the effluent of the medicine adding device are both connected with the tubular flocculator, the effluent of the tubular flocculator is connected with the air floating treatment device, the air compressor is sequentially connected with the dissolved air pump and the air floating treatment device, the effluent of the air floating treatment device is connected with the dissolved air pump and the precipitation water tank in parallel, the effluent of the upper layer of the precipitation water tank is connected with the bag type filter, and the effluent of the bag type filter is discharged as landscape water.
By adopting the technical scheme, the sucked landscape water is primarily filtered through the primary filtering device, the filtered landscape water is fully mixed with the medicine in the tubular flocculator and then discharged into the air floatation treatment device, and the solid particles and flocculates are adhered by the tiny bubbles in the water and are floated to the water surface to form scum which is scraped, so that solid-liquid separation is realized, the water discharged by the air floatation treatment device is precipitated again in the precipitation water tank, and the upper clear water is discharged into the bag filter for further filtering, thereby finally obtaining the clean landscape water.
Optionally, the air floatation treatment device is provided with a water inlet pipe, the water inlet pipe is connected with a plurality of branch pipes in the length direction, and all the branch pipes are connected with the water discharge end of the dissolved air pump.
Through adopting above-mentioned technical scheme, can not impact the influence mutually to the water of air supporting processing apparatus input area bubble between a plurality of branch pipes, avoid adjacent branch pipe row to the air supporting processing apparatus's bubble striking mutually and break, this design has also improved the efficiency that the branch pipe inputed bubble water to air supporting processing apparatus simultaneously.
Optionally, a water outlet pipe is arranged in the air floatation treatment device, a water inlet of the water outlet pipe is located at the middle water level, and a water outlet of the water outlet pipe is respectively connected with the precipitation water tank and the dissolved air pump through a pipeline.
By adopting the technical scheme, the water inlet of the water outlet pipe is designed to be positioned at the middle water level, so that the water discharged by the air floatation treatment device is not influenced by the sedimentation of the floating slag on the upper layer and the flocculate on the bottom layer, and the discharged water contains less flocculate and solid particles. A small part of water discharged by the air floatation treatment device is used for supplying water to the dissolved air pump, and a large part of water is discharged into the precipitation water tank for further precipitation.
Optionally, elementary filter equipment includes the round can, is equipped with the pivot in the round can, and the round can is equipped with the rotatory drive arrangement of drive pivot outward, and the pivot is coaxial with the round can, connects a plurality of filter screen boards in the pivot, and the side and the cooperation of round can inner wall that the pivot was kept away from to the filter screen board, and the round can bottom is located to elementary filter equipment's water inlet, elementary filter equipment' s
The water gap is arranged at the top of the round tank.
Through adopting above-mentioned technical scheme, the landscape water of extraction gets into from the round tank bottom, and a plurality of filter plate filter aquatic debris when the pivot low-speed is rotatory to obtain relatively clean landscape water at the round tank top.
Optionally, a plurality of layers of filter screens are connected between adjacent filter screen plates, and the higher the position is, the larger the number of the filter screens is.
By adopting the technical scheme, when the rotating shaft rotates at a low speed, the filter screens filter impurities in water layer by layer in the vertical direction, so that relatively clean landscape water is obtained at the top of the round tank.
Optionally, the air floatation treatment device comprises a slag scraper, and the slag scraper is used for discharging water surface floaters of the air floatation treatment device.
By adopting the technical scheme, the liquid level scum of the air floatation treatment device is efficiently discharged.
Optionally, the device further comprises a slag storage tank, sludge precipitated at the bottom of the air floatation treatment device and sludge discharged from the slag scraping machine are both led to the slag storage tank, and a sludge pump is arranged in the slag storage tank.
By adopting the technical scheme, the storage and outward transportation treatment of the sludge discharged by the air floatation treatment device are realized.
Optionally, the dosing device comprises a stirrer and a metering pump, and effluent of the dosing device flows into the tubular flocculator through the metering pump.
By adopting the technical scheme, the medicinal powder and the solvent are added into the stirrer and then are uniformly mixed by the stirrer, and then the medicinal liquid with the specified amount is discharged into the tubular flocculator by the metering pump, so that the automatic medicine feeding device has the advantages of automatic medicine feeding and medicine dosage saving.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the application provides an air-floating efficient circulating filtration and purification system for landscape water, which can effectively and efficiently purify the landscape water and can operate for a long time;
2. the medicine powder and the solvent are added into the stirrer and then are uniformly mixed by the stirrer, and then the medicine water with the specified amount is discharged into the tubular flocculator by the metering pump, so that the medicine flocculating agent has the advantages of automatic medicine adding and medicine consumption saving.
Drawings
FIG. 1 is a flow chart of an air-floating efficient circulating filtration and purification system for landscape water in the embodiment of the application;
fig. 2 is a schematic structural diagram of a primary filtering device in an embodiment of the present application.
Description of reference numerals:
1. a water production pipe; 2. a water collecting pump; 3. a primary filtration device; 4. a dosing device; 5. a tubular flocculator; 6. an air compressor; 7. a dissolved air pump; 8. an air floatation treatment device; 9. a precipitation water tank; 10. a bag filter; 11. a water inlet pipe; 12. a branch pipe; 13. a water outlet pipe; 14. a round can; 15. a rotating shaft; 16. a drive device; 17. a filter screen plate; 18. a filter screen; 19. a slag scraper; 20. a slag storage tank; 21. a sludge pump; 22. a stirrer; 23. a metering pump; 24. a treatment water tank.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses air supporting formula landscape water high efficiency circulation filtration clean system. Referring to fig. 1, the air-floating efficient circulating filtration and purification system for landscape water comprises a medicine adding device 4, a tubular flocculator 5, an air flotation treatment device 8, a precipitation water tank 9 and a bag filter 10 which are sequentially connected, wherein the tubular flocculator 5 is connected with a primary filter device 3 besides receiving medicine liquid of the medicine adding device 4, the primary filter device 3 is connected with a water collecting pipe 1, a water collecting pump 2 is arranged on the water collecting pipe 1, the water collecting pipe 1 and the water collecting pump 2 are used for extracting landscape water, and the landscape water is initially filtered by the primary filter device 3 and then enters the tubular flocculator 5. After the landscape water enters the tubular flocculator 5, the liquid medicine and the landscape water are fully mixed in the tubular flocculator 5 because the tubular flocculator 5 has the characteristics of special internal structure and long pipeline.
Referring to fig. 1, a stirrer 22 and a metering pump 23 are installed on medicine adding device 4, and medicine is input from medicine adding device 4 to tube flocculator 5 through metering pump 23. The medicinal powder and the solvent are added into a stirrer 22 and then uniformly mixed by the stirrer 22, and then a prescribed amount of the medicinal liquid is discharged into a tube flocculator 5 by a metering pump 23.
Referring to fig. 2, the primary filtering apparatus 3 is composed of a round can 14, a driving apparatus 16, a rotating shaft 15, a plurality of screen plates 17, and a plurality of filter screens 18. The driving device 16 is arranged at the top of the round tank 14, the driving device 16 is a speed reducer for driving the rotating shaft 15 to rotate, and the rotating shaft 15 is located on the central axis of the round tank 14. The filter screen plates 17 are fixed on the side face of the rotating shaft 15, the distance between every two adjacent filter screen plates 17 is the same, the vertical plane where all the filter screen plates 17 are located passes through the central axis of the rotating shaft 15, and the side edges, far away from the rotating shaft 15, of all the filter screen plates 17 are matched with the inner wall of the round tank 14. The water inlet of the primary filtering device 3 is positioned at the bottom of the round tank 14, and the water outlet of the primary filtering device 3 is positioned at the top of the round tank 14. A plurality of layers of horizontal filter screens 18 are connected between the adjacent filter screen plates 17, the intervals between the adjacent filter screens 18 are the same, and the higher the position is, the larger the mesh number of the filter screens 18 is.
Referring to fig. 2, the extracted landscape water enters from the bottom of the round tank 14, the plurality of filter screen plates 17 filter impurities in the water in the horizontal direction when the rotating shaft 15 rotates at a low speed, and the plurality of layers of filter screens 18 filter the impurities in the water layer by layer in the vertical direction, so that relatively clean landscape water is obtained at the top of the round tank 14.
Referring to fig. 1, the air flotation treatment device 8 has a treatment water tank 24, a slag scraper 19 is disposed at the top of the treatment water tank 24, a water inlet pipe 11 is fixed on the outer wall of the treatment water tank 24, and the water inlet pipe 11 is lower than the highest liquid level in the treatment water tank 24. The water inlet pipe 11 is connected with a plurality of branch pipes 12 at equal intervals in the length direction, all the branch pipes 12 are connected with the dissolved air pump 7 through a main pipe, and the dissolved air pump 7 is connected with the air compressor 6 through a pipeline. The air compressor 6 provides compressed air for the air dissolving pump 7, the compressed air is mixed with the air in the air dissolving pump 7 to form high-speed jet flow to generate water carrying a large number of bubbles, and the bubble water is sprayed into the water inlet pipe 11 and the treatment water tank 24 through the plurality of branch pipes 12.
Referring to FIG. 1, a water outlet pipe 13 is further provided in the treating water tank 24, and a water inlet at the top of the water outlet pipe 13 is located at the middle water level, and is designed to make the water discharged from the air flotation treating apparatus 8 free from the influence of the upper layer scum and the bottom layer flocs settling, so that the discharged water contains less flocs and solid particles. A water outlet at the bottom of the water outlet pipe 13 is connected with the dissolved air pump 7 and the precipitation water tank 9 in parallel through a pipeline, a small part of water discharged by the air floatation treatment device 8 is used for supplying water to the dissolved air pump 7, and a large part of water is discharged into the precipitation water tank 9 for further precipitation.
Referring to fig. 1, a scum scraper 19 at the top of a treatment water tank 24 discharges liquid scum and conveys the scum to a scum storage tank 20 through a pipeline, and a scum pump 21 is arranged at the bottom of the scum storage tank 20. The bottom of the treatment water tank 24 of the air floatation treatment device 8 is also connected with the slag storage tank 20 through a pipeline, so that sludge precipitated at the bottom of the treatment water tank 24 is conveniently and periodically discharged into the slag storage tank 20. The sludge is stored in the sludge storage tank 20 at ordinary times, and is pumped out for outward transportation through the sludge pump 21 when necessary.
The implementation principle of the air-floating efficient circulating filtration and purification system for landscape water provided by the embodiment of the application is as follows:
the sucked landscape water is primarily filtered through the primary filtering device 3, the filtered landscape water is fully mixed with the medicine in the tubular flocculator 5 and then discharged into the air floatation treatment device 8, the solid particles and flocculates are adhered by the tiny bubbles in the water, so that the solid particles and flocculates float to the water surface to form scum which is scraped, thereby realizing solid-liquid separation, the water discharged by the air floatation treatment device 8 is precipitated again in the precipitation water tank 9, the upper clear water is discharged into the bag filter 10 for further filtering, and finally the clean landscape water is obtained.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides an air supporting formula landscape water high efficiency circulation filtration clean system, is including water intaking pipe (1) and water intaking pump (2) that are used for extracting the landscape water, its characterized in that: the device is characterized by further comprising a primary filtering device (3), a medicine adding device (4), a tubular flocculator (5), an air compressor (6), an air dissolving pump (7), an air flotation treatment device (8), a precipitation water tank (9) and a bag filter (10), wherein the water collecting pipe (1) is connected with the primary filtering device (3), the effluent of the primary filtering device (3) and the water adding device (4) are connected with the tubular flocculator (5), the effluent of the tubular flocculator (5) is connected with the air flotation treatment device (8), the air compressor (6) is sequentially connected with the air dissolving pump (7) and the air flotation treatment device (8), the effluent of the air flotation treatment device (8) is connected with the air dissolving pump (7) and the precipitation water tank (9) in parallel, the effluent of the upper layer of the precipitation water tank (9) is connected with the bag filter (10), and the effluent of the bag filter (10) is discharged as landscape water.
2. The air-floating landscape water high-efficiency circulating filtration and purification system of claim 1, wherein: the air floatation device (8) is provided with a water inlet pipe (11), the water inlet pipe (11) is connected with a plurality of branch pipes (12) in the length direction, and all the branch pipes (12) are connected with the water discharge end of the dissolved air pump (7).
3. The air-floating landscape water high-efficiency circulating filtration and purification system of claim 2, wherein: a water outlet pipe (13) is arranged in the air floatation treatment device (8), a water inlet of the water outlet pipe (13) is positioned at the middle water level, and a water outlet of the water outlet pipe (13) is respectively connected with the precipitation water tank (9) and the dissolved air pump (7) through pipelines.
4. The air-floating landscape water high-efficiency circulating filtration and purification system of claim 1, wherein: elementary filter equipment (3) are equipped with pivot (15) including round jar (14) in round jar (14), round jar (14) are equipped with drive shaft (15) rotatory drive arrangement (16) outward, pivot (15) are coaxial with round jar (14), connect a plurality of filter plate (17) on pivot (15), the side and the cooperation of round jar (14) inner wall of pivot (15) are kept away from in filter plate (17), round jar (14) bottom is located to the water inlet of elementary filter equipment (3), round jar (14) top is located to the delivery port of elementary filter equipment (3).
5. The air-floating landscape water high-efficiency circulating filtration and purification system of claim 4, wherein: a plurality of layers of filter screens (18) are connected between the adjacent filter screen plates (17), and the higher the position, the larger the mesh number of the filter screens (18).
6. The air-floating landscape water high-efficiency circulating filtration and purification system of claim 1, wherein: the air floatation treatment device (8) comprises a slag scraper (19), and the slag scraper (19) is used for discharging water surface floaters of the air floatation treatment device (8).
7. The air-floating landscape water high-efficiency circulating filtration and purification system of claim 6, wherein: the device is characterized by further comprising a slag storage tank (20), wherein the bottom of the air floatation treatment device (8) deposits sludge and the sludge of the slag scraping machine (19) is led to the slag storage tank (20), and a sludge pump (21) is arranged in the slag storage tank (20).
8. The air-floating landscape water high-efficiency circulating filtration and purification system of claim 1, wherein: the dosing device (4) comprises a stirrer (22) and a metering pump (23), and effluent of the dosing device (4) flows into the tubular flocculator (5) through the metering pump (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110914786.8A CN113620461A (en) | 2021-08-10 | 2021-08-10 | Air-floating type efficient circulating filtration and purification system for landscape water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110914786.8A CN113620461A (en) | 2021-08-10 | 2021-08-10 | Air-floating type efficient circulating filtration and purification system for landscape water |
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| CN113620461A true CN113620461A (en) | 2021-11-09 |
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| CN202110914786.8A Pending CN113620461A (en) | 2021-08-10 | 2021-08-10 | Air-floating type efficient circulating filtration and purification system for landscape water |
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| CN104803553A (en) * | 2015-04-13 | 2015-07-29 | 深圳市城基园林发展有限公司 | Landscape water treatment technology |
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2021
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Application publication date: 20211109 |