CN113788508B - Groundwater circulation restoration device and system - Google Patents
Groundwater circulation restoration device and system Download PDFInfo
- Publication number
- CN113788508B CN113788508B CN202110956252.1A CN202110956252A CN113788508B CN 113788508 B CN113788508 B CN 113788508B CN 202110956252 A CN202110956252 A CN 202110956252A CN 113788508 B CN113788508 B CN 113788508B
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- rotating shaft
- well pipe
- air
- circulation
- groundwater
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/002—Reclamation of contaminated soil involving in-situ ground water treatment
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/023—Reactive oxygen species, singlet oxygen, OH radical
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Soil Sciences (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention discloses an underground water circulation repairing device and system, wherein the underground water circulation repairing device comprises: a hollow rotating shaft, wherein one end of the rotating shaft is provided with an air inlet, and the side wall of the rotating shaft is provided with an air outlet; the outer barrel is sleeved on the rotating shaft, the outer barrel comprises an upper section and a lower section, the upper section is provided with a water outlet, the lower section is provided with a water inlet, and the inner wall is provided with a blade for lifting groundwater from the lower section to the upper section; an inner cylinder with two closed ends, wherein the inner cylinder is positioned in the upper section of the outer cylinder and is provided with an air outlet; and the power device is used for driving the outer cylinder to rotate around the rotating shaft. The underground water circulation restoration device is applied to an underground water restoration system, on one hand, nano microbubbles can be generated for flotation to remove organic pollutants in water, on the other hand, circulation of underground water is guaranteed, the organic pollutants in soil are taken away continuously, and the circulation treatment effect is good.
Description
Technical Field
The invention relates to the technical field of in-situ restoration of groundwater, in particular to a groundwater circulation restoration device and system.
Background
With the development of the urban process, many chemical and pesticide enterprises start to move, and soil and groundwater in the original factory after the movement are polluted to different degrees, and the soil and groundwater can be used for commercial land, house or other construction after the repair. The pollutants in the soil and the underground water, in particular organic pollutants, have the characteristics of low content, multiple types, difficult treatment, large harm and the like. Many organic pollutants are teratogenic, oncogenic and mutagenic, and can enter the surrounding atmosphere environment through volatilization, so that the physical health and normal life of people are seriously endangered.
The groundwater repair technology is mainly divided into in-situ repair and ex-situ repair, and compared with the ex-situ repair technology, the in-situ repair technology has less interference to the environment, does not need to pump groundwater out, and has lower cost. The underground circulating well technology is one of in-situ restoration technologies, and the existing circulating well technology mostly adopts an underground aeration technology, but because the underground water pressure difference formed by the circulating well is small, most of underground water flows out of the circulating well and mainly flows horizontally, so that backflow into the circulating well cannot be realized, the circulating treatment effect is poor, and the pollution diffusion problem can be caused.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the underground water circulation restoration device with the functions of water level elevation and aeration, which is applied to an underground water circulation restoration system, and the produced nano bubbles have good flotation effect, can efficiently remove organic pollutants in a water body, can effectively solve the problem of difficult underground water circulation, and have good circulation treatment effect.
The groundwater circulation restoration device in the invention comprises:
a hollow rotating shaft, wherein one end of the rotating shaft is provided with an air inlet, and the side wall of the rotating shaft is provided with an air outlet;
the outer barrel is sleeved on the rotating shaft, the outer barrel comprises an upper section and a lower section, the upper section is provided with a water outlet, the lower section is provided with a water inlet, and the inner wall is provided with a blade for lifting groundwater from the lower section to the upper section;
an inner cylinder with two closed ends, wherein the inner cylinder is positioned in the upper section of the outer cylinder and is provided with an air outlet;
and the power device is used for driving the outer cylinder to rotate around the rotating shaft.
The following provides several alternatives, but not as additional limitations to the above-described overall scheme, and only further additions or preferences, each of which may be individually combined for the above-described overall scheme, or may be combined among multiple alternatives, without technical or logical contradictions.
Optionally, the inner cylinder is of a two-layer structure, the inner layer is a ceramic membrane, and the outer layer is a stainless steel net.
Optionally, the top end of the outer cylinder is closed, the bottom end opening is used as a water inlet, and the side wall of the upper section is provided with a hole as a water outlet.
Optionally, a partition plate which divides the outer cylinder into an upper section and a lower section and is provided with a through hole is arranged in the middle of the outer cylinder, and a bearing is arranged between the partition plate and the cover plate at the top end of the outer cylinder and the rotating shaft.
Optionally, the power device comprises a shell driven by gas in the rotating shaft, and the shell is fixedly connected with the outer cylinder.
Optionally, the aperture of the air outlet hole is 50-150 nm.
The invention also provides a groundwater circulation restoration system, which comprises a hollow well pipe vertically inserted into an underground aquifer, an air extraction system communicated with the top of the well pipe and an air injection system for conveying air into the well pipe, wherein a water inlet hole is formed in the side wall of the bottom of the well pipe, a water outlet hole is formed in the side wall of the top of the well pipe, the air injection system comprises an air injection pipe and a compressor which extend into the well pipe, the bottom of the air injection pipe is provided with the groundwater circulation restoration device, and the air injection pipe is in butt joint communication with the rotating shaft.
Optionally, the air extraction system comprises an air extraction pump and an air extraction pipe, one end of the air extraction pipe is communicated with the well pipe, and the other end of the air extraction pipe is provided with a gas treatment device.
Optionally, the water outlet hole is arranged adjacent to the underground water line, and a first screen mesh communicated with the water outlet hole is arranged in the well pipe; the bottom of the well pipe is provided with a second screen mesh communicated with the water inlet hole.
Optionally, the first screen comprises a transverse screen for gas-liquid separation and an annular screen arranged along the inner wall of the well pipe.
Compared with the prior art, the underground water circulation restoration device provided by the invention can promote the circulation flow of underground water in the vertical direction and take away organic pollutants in surrounding soil; on the other hand, the device is used as an aeration device for generating microbubbles, has good application in an underground water circulation repair system, utilizes high-speed water flow to shear the microbubbles to generate nano bubbles, can effectively remove organic pollutants in the underground water, and has good circulation treatment effect.
Drawings
FIG. 1 is a schematic diagram of an underground water circulation remediation device;
fig. 2 is a schematic structural diagram of an underground water circulation remediation system.
Reference numerals in the drawings are described as follows:
10. a groundwater circulation repair device; 11. a rotating shaft; 12. an outer cylinder; 121. an upper section; 122. a lower section; 123. a paddle; 124. a partition plate; 125. a first bearing; 126. a second bearing; 13. an inner cylinder; 131. a ceramic membrane; 132. stainless steel mesh; 14. a power device;
20. a well pipe; 21. a first screen; 211. a horizontal screen is arranged; 212. an annular screen; 22. a second screen;
30. an air extraction system; 31. an air extracting pump; 32. an exhaust pipe; 33. a gas treatment device;
40. an air injection system; 41. an air injection pipe; 42. a compressor;
50. a groundwater level.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Soil and groundwater are the primary sites for enrichment of organic contaminants, many of which can enter the surrounding atmosphere by volatilization, jeopardizing the health and normal life of people. At present, the in-situ remediation technology is widely applied to the underground water remediation of a volatile organic pollution site, namely an underground circulating well is constructed in a pollutant saturated zone of soil, an underground aeration technology is adopted, gas is directly injected into the saturated zone of the soil to generate flotation bubbles for oxidizing or air-floating pollutants, and then the flotation bubbles are extracted through an air extraction system for treatment, but the underground water pressure difference formed by the existing underground circulating well is small, most of the underground water flows out of the circulating well mainly in a horizontal direction, backflow cannot be realized, the circulating treatment effect is poor, and the horizontal diffusion and migration of pollution are difficult to prevent.
The invention aims to solve the technical problems and provides a groundwater circulation restoration device 10, which comprises a rotating shaft 11, an outer cylinder 12, an inner cylinder 13 and a power device 14, wherein the rotating shaft 11 is of a hollow structure, one end of the rotating shaft is provided with an air inlet, and the side wall of the rotating shaft is provided with an air outlet; the outer cylinder 12 comprises an upper section 121 and a lower section 122, the upper section 121 is provided with a water outlet, the lower section 122 is provided with a water inlet, and the inner wall is provided with blades 123 for lifting groundwater from the lower section 122 to the upper section 121; the inner cylinder 13 is of a closed structure at two ends, and the side wall of the inner cylinder is provided with air outlet holes; the outer cylinder 12 is sleeved on the rotating shaft 11, the inner cylinder 13 is arranged inside the upper section 121 of the outer cylinder 12, and the power device 14 is connected with the upper section 121 of the outer cylinder 12, see fig. 1.
In the working state, the power device 14 drives the outer cylinder 12 to rotate around the rotating shaft 11 to drive the blades 123 to rotate to generate a siphon effect, so that groundwater is sucked from the water inlet and enters the outer cylinder 12 to form water flow with a certain speed; the air is injected from the air inlet of the rotating shaft 11, the inner cylinder 13 plays an aeration role, a large number of bubbles are generated in the outer cylinder 12, and the bubbles are further cut and thinned by high-speed water flow, so that smaller nano bubbles are formed.
The size of the nano bubbles is related to the air outlet holes on the inner cylinder 13, in one embodiment, the aperture of the air outlet holes is 50-150 nm, and the size of the generated bubbles is moderate, so that the bubbles are easily cut and thinned into smaller nano bubbles by water flow. The nano bubbles have good floatation effect on organic pollutants; if the gas is oxygen, the generated oxygen-containing bubbles can also form instant high-temperature high-pressure shock waves and ultrasonic waves when burst, and the oxygen is decomposed into hydroxyl free radicals with stronger activity, so that various pollutants in the water body are oxidized and degraded.
The inner cylinder 13 is generally made of ceramic membrane materials, but water flow in the outer cylinder 12 can impact or wash the surface of the inner cylinder 13, and in order to protect and prolong the service life of the inner cylinder 13, the inner cylinder 13 is designed to be of a two-layer structure, the inner layer is made of ceramic membranes, and the outer layer is made of a stainless steel mesh.
To better induce the water flow to rise, in one embodiment, the top end of the outer cylinder 12 is closed, the bottom end is opened as a water inlet, and the side wall of the upper section 121 is opened as a water outlet.
Further, the blades are uniformly distributed along the inside of the bottom end opening, and the end parts of the blades are bent back to the water inlet; the power unit 14 drives the outer cylinder 12 to rotate, and the blades 123 also rotate, so that groundwater is quickly sucked into the cylinder.
Considering the transmission effect of the power unit 14 and the outer cylinder 12, in one embodiment, a partition plate 124 dividing the outer cylinder 12 into an upper section and a lower section and having a through hole is provided at the middle part of the outer cylinder 12; a first bearing 125 is arranged between the cover plate at the top end of the outer cylinder 12 and the rotating shaft, a second bearing 126 is arranged between the partition plate 124 and the rotating shaft, and the outer cylinder 12 can be firmly supported through the two bearings on one hand, and on the other hand, the bearing is high in transmission efficiency, stable in transmission and beneficial to improving the working efficiency.
For the selection of the power unit 14, a rotary motor may be used, or a pneumatic rotary unit may be used, and considering the underwater operation environment, in an embodiment, the power unit 14 includes a housing driven by the gas in the rotating shaft 11, and the housing is fixedly connected with the outer cylinder 12. The housing is internally provided with a pneumatic assembly such as a pneumatic motor, a pneumatic indexing turntable, etc.
The underground water circulation device of the embodiment has a simple structure and a small volume, has the functions of a lift pump and a bubble generator, and can be applied to an underground water circulation repair system.
The invention provides a groundwater circulation restoration system for treating volatile organic pollution in groundwater, referring to fig. 2, the groundwater circulation restoration system comprises a hollow well pipe 20, an air extraction system 30 and an air injection system 40 which are vertically inserted into an underground aquifer, wherein the well pipe 20 is generally arranged higher than the ground surface, the top end of the well pipe 20 is fixed by a steel pipe fixing disc, a water inlet hole is formed in the side wall of the bottom of the well pipe 20, a water outlet hole is formed in the side wall of the top of the well pipe, a new water line is formed around the well pipe 20 by inserting the well pipe 20, and water flows around the well pipe can flow along the horizontal direction and the vertical direction; the gas injection system 40 includes a gas injection pipe 41 extending into the well pipe 20 and a compressor 42, and the underground water circulation repairing device 10 in any of the above examples is installed at the bottom of the gas injection pipe 41, and there are many connection modes between the two, for example, the gas injection pipe 41 and the rotating shaft 11 are connected by flanges, so that the fixing is firm, the sealing performance is good, and other reliable modes can also be adopted, which is not limited in the present invention.
When repairing operation is carried out, the gas injection system 40 continuously injects gas into the underground water circulation repairing device 10, and for the pneumatic rotating device, the injected gas is split, one part of the gas is used for driving the pneumatic rotating device to work, so that the outer cylinder 12 and the blades 123 are driven to rotate, the underground water level is vertically raised, and meanwhile, the circulating flow of the underground water in the vertical direction is ensured, so that organic pollutants in the surrounding soil are continuously carried away; another part of the gas enters the inner cylinder 13 for aeration to generate bubbles required for the air floatation operation. The gas-liquid mixture of the outer cylinder 12 carries volatile organic pollutants to rise to the top end of the well pipe 20 continuously, the air pumping system 30 is started to separate gas from liquid, the separated gas is pumped away, liquid returns to the soil from the water outlet hole, and most of the liquid is recirculated into the well pipe 20 by the underground water circulation repair device 10 due to the fact that the pressure difference in the vertical direction is large. In the process, the change of the liquid level in the well pipe is noted, and the liquid level is controlled to be lower than the water outlet hole of the well pipe, so that water inlet of the air extraction system is avoided.
The water outlet hole is generally arranged adjacent to the underground water line 50, a first screen 21 communicated with the water outlet hole is arranged in the well pipe 20, and the water flow rich in bubbles is subjected to gas-liquid separation at the first screen 21; the bottom of the well pipe 20 is provided with a second screen 22 in communication with the water inlet for continuously filtering the liquid entering the well pipe 20 to prevent the groundwater circulation repair device 10 from being damaged by sucking in large particulate matter.
To increase the efficiency of the gas-liquid separation, in one embodiment the first screen 21 comprises a transverse screen 211 for the gas-liquid separation and an annular screen 212 provided along the inner wall of the well pipe 20. The gas-liquid mixture flowing out of the outer cylinder is separated by the transverse screen 211, the gas is still in the well pipe and pumped away by the pump, the liquid flows out of the annular screen 212 mainly in vertical flow and less in horizontal flow, so that the gas-liquid mixture can flow back into the well pipe 20, the specific path is shown in fig. 2, white arrows in the figure indicate the gas, black-white mixed arrows indicate the gas-liquid mixture, and black arrows indicate the liquid.
The volatile organic contaminants extracted from the well pipe 20 are further processed, and in one embodiment, the pumping system 30 includes a pump 31 and a pump tube 32, and one end of the pump tube 32 is connected to the well pipe 20, and the other end is provided with a gas processing device 33.
Compared with the prior art, the groundwater circulation repairing device 10 provided by the invention can meet the air floatation operation requirement of groundwater by vertically lifting and inducing to form high-speed water flow for shearing bubbles to generate smaller nano bubbles, and is applied to a groundwater circulation repairing system, so that the groundwater circulation repairing device is used as an aeration device for generating microbubbles on one hand and can promote the circulating flow of the groundwater in the vertical direction on the other hand, organic pollutants in surrounding soil are taken away, and the circulation treatment effect is good.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description. When technical features of different embodiments are embodied in the same drawing, the drawing can be regarded as a combination of the embodiments concerned also being disclosed at the same time.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of the invention should be assessed as that of the appended claims.
Claims (8)
1. Groundwater circulation prosthetic devices, its characterized in that includes:
a hollow rotating shaft, wherein one end of the rotating shaft is provided with an air inlet, and the side wall of the rotating shaft is provided with an air outlet;
the outer barrel is sleeved on the rotating shaft, the outer barrel comprises an upper section and a lower section, the upper section is provided with a water outlet, the lower section is provided with a water inlet, and the inner wall is provided with a blade for lifting groundwater from the lower section to the upper section;
an inner cylinder with two closed ends, wherein the inner cylinder is positioned in the upper section of the outer cylinder and is provided with an air outlet;
the power device drives the outer cylinder to rotate around the rotating shaft;
the aperture of the air outlet hole is 50-150 nm;
the top end of the outer cylinder is closed, the bottom end opening is used as a water inlet, and the side wall of the upper section is provided with a hole as a water outlet.
2. The groundwater circulation restoration device according to claim 1, wherein the inner cylinder has a two-layer structure, the inner layer is a ceramic membrane, and the outer layer is a stainless steel mesh.
3. The groundwater circulation restoration device according to claim 1, wherein a partition plate dividing the outer cylinder into an upper section and a lower section and having a through hole is provided in the middle of the outer cylinder, and a bearing is provided between the partition plate and a cover plate at the top end of the outer cylinder and the rotating shaft.
4. The groundwater circulation remediation device of claim 1 wherein the power means comprises a housing driven by gas within a shaft, the housing being fixedly connected to the outer barrel.
5. The underground water circulation repairing system comprises a hollow well pipe vertically inserted into an underground water-bearing layer, an air extraction system communicated with the top of the well pipe and an air injection system for conveying air into the well pipe, wherein a water inlet hole is formed in the side wall of the bottom of the well pipe, a water outlet hole is formed in the side wall of the top of the well pipe, and the air injection system comprises an air injection pipe and a compressor which extend into the well pipe.
6. The groundwater circulation remediation system of claim 5 wherein the air extraction system includes an air pump and an air extraction tube, one end of the air extraction tube is in communication with the well pipe, and the other end is provided with a gas treatment device.
7. The groundwater circulation remediation system of claim 5 wherein the water outlet is positioned adjacent a groundwater line, a first screen in communication with the water outlet is positioned within the well pipe; the bottom of the well pipe is provided with a second screen mesh communicated with the water inlet hole.
8. The groundwater circulation remediation system of claim 7 wherein the first screen includes a lateral screen for gas-liquid separation and an annular screen is disposed along the well pipe inner wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110956252.1A CN113788508B (en) | 2021-08-19 | 2021-08-19 | Groundwater circulation restoration device and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110956252.1A CN113788508B (en) | 2021-08-19 | 2021-08-19 | Groundwater circulation restoration device and system |
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| CN113788508A CN113788508A (en) | 2021-12-14 |
| CN113788508B true CN113788508B (en) | 2023-09-29 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010143920A2 (en) * | 2009-06-11 | 2010-12-16 | Han Sang Kwan | Total environmentally friendly process for purifying tap water that is introduced into a water tank into clean water or purifying contaminated river water into clean water as well as purifying seawater into clean drinking water |
| KR101691424B1 (en) * | 2016-07-22 | 2016-12-30 | 효림산업주식회사 | Complex Purification System of Oil-polluted Underground Water by Physical and Biological |
| CN109650572A (en) * | 2018-12-27 | 2019-04-19 | 博川环境修复（北京）有限公司 | A kind of circulation well for repairing polluted underground water and its flowing through contaminated soil |
| CN213061949U (en) * | 2020-08-21 | 2021-04-27 | 无锡德林海环保科技股份有限公司 | Spiral-flow type algae water enrichment equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3373788B2 (en) * | 1998-08-03 | 2003-02-04 | 株式会社日さく | Contaminated groundwater purification equipment |
| US10328363B2 (en) * | 2016-06-09 | 2019-06-25 | Xianggen Wu | Bioreactor system and method |
-
2021
- 2021-08-19 CN CN202110956252.1A patent/CN113788508B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010143920A2 (en) * | 2009-06-11 | 2010-12-16 | Han Sang Kwan | Total environmentally friendly process for purifying tap water that is introduced into a water tank into clean water or purifying contaminated river water into clean water as well as purifying seawater into clean drinking water |
| KR101691424B1 (en) * | 2016-07-22 | 2016-12-30 | 효림산업주식회사 | Complex Purification System of Oil-polluted Underground Water by Physical and Biological |
| CN109650572A (en) * | 2018-12-27 | 2019-04-19 | 博川环境修复（北京）有限公司 | A kind of circulation well for repairing polluted underground water and its flowing through contaminated soil |
| CN213061949U (en) * | 2020-08-21 | 2021-04-27 | 无锡德林海环保科技股份有限公司 | Spiral-flow type algae water enrichment equipment |
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