CN113354162B - Permeable reaction device for underground metal pollution remediation - Google Patents
Permeable reaction device for underground metal pollution remediation Download PDFInfo
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- CN113354162B CN113354162B CN202110638152.4A CN202110638152A CN113354162B CN 113354162 B CN113354162 B CN 113354162B CN 202110638152 A CN202110638152 A CN 202110638152A CN 113354162 B CN113354162 B CN 113354162B
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
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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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
- C02F1/4696—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrophoresis
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
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Abstract
The invention relates to the technical field of groundwater pollution treatment, and discloses a permeable reaction device for underground metal pollution remediation. Underground water is through a plurality of treatment fans in, with the production collision between the treatment fan, make the pollutant by homodisperse, and the processing through a plurality of treatment fans is adsorbed by abundant, and because the treatment blade rotates along with the rotation of treating the fan, make the position of handling the blade constantly change at rotatory in-process, and then make underground water carry out continuous flow in handling the inside of blade, make the metal ion pollutant in the underground water can disperse in each position of same treatment blade uniformly, prevent that the absorbent metal ion of the treatment gel of a certain region is too much, cause the quick inefficacy of this regional treatment gel.
Description
Technical Field
The invention relates to the technical field of underground water pollution treatment, in particular to a permeable reaction device for underground metal pollution remediation.
Background
Heavy metals severely contaminate water, air and the ecological environment on which people rely for survival due to their toxicity, difficulty in biodegradability and bioaccumulation. Particularly, heavy metals are difficult to treat after entering underground, and have great harm to the ecological environment. Among the treatment technologies for underground heavy metal pollution, the permeable reactive barrier technology is an in-situ remediation technology for underground water pollution which is rapidly developed in recent years. The permeable reactive barrier is generally installed in the underground aquifer and is perpendicular to the direction of underground water flow, and along with the underground water flowing through the reactive barrier, the pollution components in the pollution pinnate body are converted into an environment-acceptable form by utilizing the reaction medium through the actions of physics, chemistry, biodegradation and the like, thereby achieving the purpose of treating the underground water pollution.
The common permeable reactive barrier adopts a plurality of permeable reactive layers vertical to the water flow direction, in an underground water system, due to the action of the water flow and different specific gravities of various pollutants, particularly in a flow channel with uniform flow rate, various pollutants are easy to generate a sedimentation process, so that various different pollutants are positioned at different height positions in the water flow, and flow through the plurality of permeable reactive layers during treatment, so that the filler in a certain area always preferentially reacts on a single permeable reactive layer, so that the filler in the area is rapidly failed, the pollutants can be partially treated due to diffusion in subsequent time, but the treatment rate is greatly reduced relative to an initial state, so that the treatment on the pollutants is failed, a large amount of the filler cannot be contacted with the pollutants to be wasted, and the filler in the single area cannot be replaced due to the device being positioned underground, so that the treatment effect cannot be repaired in time, and the treatment process of pollutants for a long time is not facilitated.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a permeable reaction device for repairing underground metal pollution, which has the advantages of uniform filler adsorption effect, high treatment efficiency, capability of performing self-repair on fillers and the like, and solves the problems that the fillers at local positions are easy to lose efficacy and the fillers are difficult to replace due to nonuniform failure.
(II) technical scheme
In order to solve the technical problems that the filler at the local position is easy to lose efficacy and the filler is difficult to replace due to inconsistent failure time, the invention provides the following technical scheme: a permeable reactive device for subterranean metal contamination remediation, comprising: the external fixed box, a plurality of processing fans, a front end electric appliance and a rear end electric appliance; the plurality of treatment fans are sequentially arranged along the flow direction of underground water, are used for separating and treating pollutants in the underground water, and are impacted by the underground water to rotate in the external fixed box; the processing fans respectively comprise an outer side limiting ring, a central electric connector and a plurality of processing blades; the plurality of treatment blades are fixedly arranged between the outer side limiting ring and the central electric connector, a certain included angle is formed between each treatment blade and a surface perpendicular to the flow direction of underground water, and the underground water impacts the treatment blades to generate force to drive the treatment fan to rotate in the external fixing box; the included angle directions of the processing blades of two adjacent processing fans are completely opposite, so that the rotating action directions of the two adjacent processing fans generated by the impact of underground water are opposite.
Preferably, the processing blades are internally provided with processing cavities, and the surfaces of the processing blades are provided with stopping grids; a plurality of treatment gels are respectively filled in the treatment cavities and are used for respectively adsorbing and treating a plurality of pollutants in underground water; the blocking grating is used for preventing treatment gel in the treatment cavity from falling off while penetrating through underground water.
Preferably, one side of the central electric connector is provided with a power taking head, the other side of the central electric connector is provided with a power taking groove, one side of the front end electric connector is also provided with the power taking head, and one side of the rear end electric connector is also provided with the power taking groove; the plurality of power taking heads are embedded into the corresponding power taking grooves, so that the plurality of central electric connectors are electrically connected with the front-end electric appliance and the rear-end electric appliance.
Preferably, a permeation cavity is arranged inside the external fixed box and is communicated with underground water through a plurality of treatment fans; a plurality of limiting track grooves are formed in the inner side surface of the external fixed box, the limiting track grooves are matched with the outer limiting rings, and the limiting track grooves are used for limiting the translation function of the processing fan in the rotating process.
Preferably, a first through hole is formed in the surface of one side, close to the outer side limiting ring, of the processing blade; a plurality of second communicating holes are formed in the outer limiting ring; the plurality of second communication holes are respectively in one-to-one correspondence with the first communication holes of the plurality of processing blades.
Preferably, the first communication hole and the second communication hole communicate with each other, and the second communication hole communicates with the permeate chamber; and the underground water enters the treatment cavity through the blocking grating and enters the permeation cavity through the first communicating hole and the second communicating hole.
Preferably, the central electric connector and the front end electric connector are connected with the positive electrode of an external circuit; an electrode plate is arranged in the permeation cavity and connected with the negative electrode of an external circuit; the central electric connector, the front end electric connector and the rear end electric connector are connected with the positive electrode to form a positive plate; the permeation cavity is connected with the negative electrode through the electrode plate to form a negative plate; the positive plate and the negative plate generate potential difference under the action of an external circuit, metal ion pollution in underground water gradually migrates to the inside of the permeation cavity for enrichment under the action of the potential difference.
Preferably, infiltration intracavity portion is provided with the liquid suction pipe, the liquid suction pipe bottom stretches into infiltration intracavity portion bottom, the liquid suction pipe is used for taking out the high concentration metal pollution of infiltration intracavity portion.
(III) advantageous effects
Compared with the prior art, the permeable reaction device for underground metal pollution remediation provided by the invention has the following beneficial effects:
1. this kind of a permeable reaction device for prosthetic underground metal pollution, when groundwater passes through a plurality of treatment fans, because the trend that the movement direction changed takes place with the fluid along the flow path that blocks of treatment fan, make when groundwater passes through a plurality of treatment fans, groundwater produces the collision between the different flow direction and the treatment fan, make originally because the difference of pollutant quality, the pollutant settlement effect of production is broken, thereby make different pollutants by homodisperse in groundwater, and the processing through a plurality of treatment fans is fully adsorbed, the guarantee is to the treatment effect of groundwater.
2. The permeable reaction device for repairing underground metal pollution has the advantages that as the treatment blades rotate along with the rotation of the treatment fan, the position of the treatment blade is continuously changed in the rotating process, so that the groundwater entering the treatment blade is influenced by gravity and inertia, the treatment gel in the same treatment blade can fully contact with the underground water by continuously flowing in the treatment blade, so that metal ion pollutants in the underground water can be uniformly dispersed in each part of the same treatment blade, the treatment gel in a certain area is prevented from rapidly losing efficacy due to excessive metal ions adsorbed by the treatment gel, therefore, the metal ion pollutants are uniformly dispersed, the processing gel in the same processing blade is ensured to be synchronously and slowly invalid, and the service time of the processing gel is prolonged.
3. When underground water passes through the permeable reaction device for repairing underground metal pollution, the central electric connector, the front end electric connector and the rear end electric connector are connected with the positive electrode of an external circuit to form a positive plate; and is connected with the negative electrode of an external circuit through an electrode plate, so that the infiltration cavity forms a negative plate; because the effect of external circuit produces the potential difference between positive plate and the negative plate, the metal ion pollution in the groundwater passes through the effect of potential difference, and the inside route of device, metal ion migrate gradually to infiltration intracavity portion through the electrophoresis and enrich for absorbent metal ion migrates in the processing gel in the processing blade, to handling the gel production purifying effect, improve the life who handles the gel, the live time of extension fixture.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic diagram of the overall explosion of the present invention;
FIG. 3 is a schematic perspective view of two processing fans of the present invention;
FIG. 4 is a schematic perspective view of another aspect of the treatment fan of the present invention;
FIG. 5 is an exploded view of the processing fan of the present invention;
FIG. 6 is a schematic view, partially in section, of a treatment blade of the present invention
Fig. 7 is a schematic cross-sectional view of the external fixing box of the present invention.
In the figure: 1. an external fixed box; 11. a permeate chamber; 12. limiting the track groove; 13. a liquid pumping pipe; 2. a processing fan; 21. an outer limit ring; 211. a second communication hole; 22. a central electric connector; 221. a power take-off head; 222. a power taking groove; 23. processing the blade; 231. processing the cavity; 232. a blocking grid; 233. a first communication hole; 3. the front end is connected with an electric appliance; 4. the back end is connected with an electric appliance.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As described in the background, the prior art is deficient in that the permeable reactive means for repairing metallic contamination in the ground is provided to solve the above technical problems.
Referring to fig. 1-3, a permeable reactive device for subterranean metal contamination remediation, comprising: the device comprises an external fixed box 1, a plurality of processing fans 2, a front end electric appliance 3 and a rear end electric appliance 4; the plurality of treatment fans 2 are sequentially arranged along the flow direction of underground water, the plurality of treatment fans 2 are used for separating and treating pollutants in the underground water, and the plurality of treatment fans 2 are impacted by the underground water to rotate in the external fixed box 1; the treatment fans 2 respectively comprise an outer side limiting ring 21, a central electric connector 22 and a plurality of treatment blades 23; a plurality of processing blades 23 are fixedly arranged between the outer side limiting ring 21 and the central electric connector 22, the processing blades 23 form a certain included angle with a surface vertical to the flow direction of underground water, and the underground water impacts the processing blades 23 to generate force to drive the processing fan 2 to rotate in the external fixing box 1; the included angle directions of the treatment blades 23 of two adjacent treatment fans 2 are completely opposite, so that the rotation action directions generated by the impact of underground water on two adjacent treatment fans 2 are opposite.
Further, referring to fig. 3-5, the processing blades 23 are each provided with a processing cavity 231 therein, and the surfaces of the processing blades 23 are provided with blocking grids 232; a plurality of treatment gels are respectively filled in the plurality of treatment cavities 231, and the plurality of treatment gels are used for respectively adsorbing and treating a plurality of pollutants in the groundwater; the blocking grill 232 serves to prevent the treatment gel inside the treatment cavity 231 from coming out while allowing the groundwater to pass therethrough.
When practical application, it is porous structure to handle the gel, and the composition in the processing gel of different kinds is different, and multiple processing gel is used for adsorbing the heterogeneous metal ion in the groundwater that passes through respectively for metal contamination in the groundwater through the device is adsorbed and carries out the electricity enrichment, makes and restores the metal contamination in the groundwater.
Further, referring to fig. 4-6, one side of the central electric connector 22 is provided with a power taking head 221, the other side of the central electric connector 22 is provided with a power taking groove 222, one side of the front end electric connector 3 is also provided with the power taking head 221, and one side of the rear end electric connector 4 is also provided with the power taking groove 222; the plurality of power take-off heads 221 are inserted into the corresponding power take-off slots 222, so that the plurality of central electric connectors 22 are electrically connected with the front end electric connector 3 and the rear end electric connector 4.
A permeation cavity 11 is arranged in the external fixed box 1, and the permeation cavity 11 is communicated with underground water through a plurality of treatment fans 2; a plurality of limiting track grooves 12 are formed in the inner side surface of the external fixed box 1, the limiting track grooves 12 are matched with the outer limiting rings 21, and the limiting track grooves 12 are used for limiting the translation function of the treatment fan 2 in the rotation process.
The surface of one side of the processing blade 23 close to the outer limiting ring 21 is provided with a first through hole 233; the outer limiting ring 21 is provided with a plurality of second communicating holes 211; the plurality of second communication holes 211 correspond to the plurality of first communication holes 233 of the processing blades 23 one to one, respectively.
The first communication hole 233 and the second communication hole 211 communicate with each other, and the second communication hole 211 communicates with the permeate chamber 11; the groundwater enters the treatment cavity 231 through the stopping grid 232 and enters the inside of the infiltration chamber 11 through the first and second communication holes 233 and 211.
The central electric connector 22 is connected with the front end electric connector 3 and the positive electrode of the external circuit; an electrode plate is arranged in the permeation cavity 11 and connected with the negative electrode of an external circuit; the central electric connector 22, the front end electric connector 3 and the rear end electric connector 4 are connected with the positive electrode to form a positive plate; the infiltration cavity 11 is connected with the negative electrode through an electrode plate to form a negative plate; because the effect of external circuit produces the potential difference between positive plate and the negative plate, the metal ion pollution in the groundwater passes through the effect of potential difference, and metal ion migrates inside infiltration chamber 11 through the electrophoresis gradually and enriches.
Further, referring to fig. 6, a liquid extracting pipe 13 is disposed inside the infiltration chamber 11, a bottom end of the liquid extracting pipe 13 extends into a bottom end inside the infiltration chamber 11, and the liquid extracting pipe 13 is used for extracting the high-concentration metal contamination inside the infiltration chamber 11.
When being installed, the permeable reaction device needs to be installed in the runoff direction of an underground water system, including but not limited to a factory sewage discharge section, an underground river and other water areas.
The working principle is as follows: groundwater is when this kind of permeable reaction device, through a plurality of treatment fan 2, because a plurality of treatment blade 23 of treating fan 2 have certain contained angle with perpendicular groundwater flow to the face, make groundwater strike a plurality of treatment blade 23, a plurality of treatment blade 23 receive the effect of power, drive whole treatment fan 2 and at the inside rotation of external fixed case 1, and because the contained angle direction of two adjacent treatment blade 23 of treating fan 2 is opposite completely, make two adjacent treatment fan 2 receive the rotation effect opposite direction that groundwater impacted the production.
When the underground water impacts the treatment blades 23 of the treatment fan 2, the blocking grids 232 are arranged on the treatment blades 23, so that the underground water enters the treatment cavity 231 through the blocking grids 232 and is discharged from the treatment cavity 231 through the blocking grids 232 on the other side of the treatment blades 23, when the underground water passes through the treatment cavity 231, metal ions in the underground water are adsorbed into the treatment gels under the action of treatment gels, and metal pollutants in the underground water are sufficiently adsorbed after the underground water passes through the treatment blades 23 of the treatment fans 2, so that the purpose of repairing the metal pollutants in the underground water is achieved.
Groundwater is when through a plurality of treatment fans 2, because the trend that the movement direction changed takes place along the flow path with the fluid that blocks of treatment fan 2, make groundwater through a plurality of treatment fans 2 in, groundwater produces the collision between different flow directions and treatment fan 2, make originally because the difference of pollutant quality, the pollutant settlement effect of production is broken, thereby make different pollutants by the homodisperse in groundwater, and the processing through a plurality of treatment fans 2 is fully adsorbed, the guarantee is to the treatment effect of groundwater.
When groundwater is treated by the treating blade 23, since the treating blade 23 rotates with the rotation of the treating fan 2, the position of the treatment blade 23 is constantly changed during the rotation, so that the groundwater introduced into the interior of the treatment blade 23 is influenced by gravity and inertia, the continuous flowing is carried out in the treatment blade 23, so that the treatment gel in the same treatment blade 23 can fully contact the underground water, so that metal ion pollutants in the groundwater can be uniformly dispersed at each part of the same treatment blade 23, the treatment gel in a certain area is prevented from rapidly losing efficacy due to excessive metal ions adsorbed by the treatment gel, therefore, the treatment gel in the same treatment blade 23 is ensured to be synchronously and slowly ineffective through the uniform dispersion of the metal ion pollutants, and the service time of the treatment gel is prolonged.
When groundwater passes through this permeable reaction device, promote two adjacent treatment fans 2 and make the opposite motion of direction of rotation, make a plurality of treatment fans 2 when constantly rotating, stir the groundwater that passes through and carry out the change of flow direction, make groundwater fully handle in a plurality of treatment blades 23, because the opposite direction of rotation of two adjacent treatment fans 2, make the groundwater that passes in the clearance between a plurality of treatment blades 23 of the preceding treatment fan 2, get into the treatment blade 23 of the next treatment fan 2, guarantee that groundwater homoenergetic passes through from a plurality of treatment blades 23, in order to carry out abundant treatment effect to groundwater.
When the groundwater passes through the permeation reaction device, the plurality of central electric connectors 22 are electrically communicated with the front end electric connector 3 and the rear end electric connector 4 through the embedded relation between the corresponding electricity taking heads 221 and the electricity taking grooves 222, and the central electric connectors 22, the front end electric connector 3 and the rear end electric connector 4 form a positive plate through the connection with the positive electrode of an external circuit;
in addition, as the electrode plate is arranged in the permeation cavity 11 and is connected with the negative electrode of an external circuit, the permeation cavity 11 forms a negative electrode plate;
the positive plate and the negative plate generate potential difference under the action of an external circuit, metal ion pollution in underground water gradually migrates to the inside of the permeation cavity 11 for enrichment under the action of electrophoresis along the path of the underground water, the treatment blade 23, the treatment cavity 231, the first through hole 233, the second through hole 211 and the permeation cavity 11 under the action of the potential difference, so that metal ions adsorbed in treatment gel in the treatment blade 23 migrate, the treatment gel is purified, the service life of the treatment gel is prolonged, and the service life of the device is prolonged.
After the device operation a period, through liquid suction pipe 13, take out the inside high concentration metal contamination in infiltration chamber 11 for the inside metal contamination concentration in infiltration chamber 11 descends, reduces the metal ion pollution and permeates the inside enrichment degree of difficulty in chamber 11, improves the prosthetic efficiency of groundwater metal contamination.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A permeable reactive device for subterranean metal contamination remediation, comprising: the device comprises an external fixed box (1), a plurality of processing fans (2), a front end electric appliance (3) and a rear end electric appliance (4);
the plurality of treatment fans (2) are sequentially arranged along the flow direction of underground water, the plurality of treatment fans (2) are used for separating and treating pollutants in the underground water, and the plurality of treatment fans (2) are impacted by the underground water to rotate in the external fixed box (1);
the treatment fans (2) respectively comprise an outer side limiting ring (21), a central electric connector (22) and a plurality of treatment blades (23);
The treatment blades (23) are fixedly arranged between the outer limiting ring (21) and the central electric connector (22), a certain included angle is formed between each treatment blade (23) and a surface perpendicular to the flow direction of underground water, and the underground water impacts the treatment blades (23) to generate force action to drive the treatment fan (2) to rotate in the external fixing box (1);
the included angle directions of the treatment blades (23) of two adjacent treatment fans (2) are completely opposite, so that the rotation action directions of the two adjacent treatment fans (2) caused by groundwater impact are opposite;
a power taking head (221) is arranged on one side of the central power connector (22), a power taking groove (222) is arranged on the other side of the central power connector (22), the power taking head (221) is also arranged on one side of the front end power connector (3), and the power taking groove (222) is also arranged on one side of the rear end power connector (4);
a plurality of the power taking heads (221) are embedded inside the corresponding power taking grooves (222), so that a plurality of the central electric connectors (22) are electrically connected with the front end electric connector (3) and the rear end electric connector (4);
a permeation cavity (11) is arranged inside the external fixed box (1), and the permeation cavity (11) is communicated with underground water through a plurality of treatment fans (2);
The inner side surface of the external fixed box (1) is provided with a plurality of limiting track grooves (12), the limiting track grooves (12) are matched with the outer side limiting ring (21), and the limiting track grooves (12) are used for limiting the translation action of the processing fan (2) in the rotating process;
one side surface of the processing blade (23) close to the outer side limiting ring (21) is provided with a first communication hole (233);
a plurality of second communicating holes (211) are formed in the outer limiting ring (21);
the second communication holes (211) are respectively in one-to-one correspondence with the first communication holes (233) of the processing blades (23).
2. A permeable reactive means for subterranean metal contamination remediation according to claim 1, wherein: a treatment cavity (231) is formed in each treatment blade (23), and a blocking grating (232) is arranged on the surface of each treatment blade (23);
a plurality of treatment gels are respectively filled in the treatment cavities (231), and the treatment gels are used for respectively adsorbing and treating a plurality of pollutants in underground water;
the blocking grid (232) is used for preventing the treatment gel in the treatment cavity (231) from being removed while penetrating the underground water.
3. The permeable reactive barrier apparatus for underground metal pollution remediation according to claim 2, wherein: the first communication hole (233) and the second communication hole (211) communicate with each other, and the second communication hole (211) communicates with the permeation chamber (11);
the underground water enters the treatment cavity (231) through the stopping grids (232) and enters the permeation cavity (11) through the first communication holes (233) and the second communication holes (211).
4. A permeable reactive means for subterranean metal contamination remediation according to claim 1, wherein: the central electric connector (22) is connected with the front end electric connector (3) and the positive electrode of an external circuit;
an electrode plate is arranged in the permeation cavity (11), and the electrode plate is connected with the negative electrode of an external circuit;
the central electric connector (22), the front end electric connector (3) and the rear end electric connector (4) are connected with the positive electrode to form a positive plate;
the infiltration cavity (11) is connected with a negative electrode through the electrode plate to form a negative electrode plate;
the positive plate and the negative plate generate potential difference under the action of an external circuit, metal ions in underground water are polluted and gradually migrate to the inside of the permeation cavity (11) for enrichment under the action of the potential difference through electrophoresis.
5. A permeable reactive means for subterranean metal contamination remediation according to claim 4, wherein: infiltration chamber (11) inside is provided with liquid suction pipe (13), liquid suction pipe (13) bottom stretches into the inside bottom in infiltration chamber (11), liquid suction pipe (13) are used for taking out the inside high concentration metal contamination in infiltration chamber (11).
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| CN202110638152.4A CN113354162B (en) | 2021-06-08 | 2021-06-08 | Permeable reaction device for underground metal pollution remediation |
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| CN202110638152.4A CN113354162B (en) | 2021-06-08 | 2021-06-08 | Permeable reaction device for underground metal pollution remediation |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1408418A (en) * | 1971-11-22 | 1975-10-01 | Thordarson J | Separating apparatus |
| US3997447A (en) * | 1974-06-07 | 1976-12-14 | Composite Sciences, Inc. | Fluid processing apparatus |
| CN213171605U (en) * | 2020-08-19 | 2021-05-11 | 深圳市环境科学研究院 | River groundwater pollutes normal position restoration module |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITUB20153685A1 (en) * | 2015-09-17 | 2017-03-17 | Univ Politecnica Delle Marche | DEVICE AND PROCESS FOR AIR PURIFICATION |
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2021
- 2021-06-08 CN CN202110638152.4A patent/CN113354162B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1408418A (en) * | 1971-11-22 | 1975-10-01 | Thordarson J | Separating apparatus |
| US3997447A (en) * | 1974-06-07 | 1976-12-14 | Composite Sciences, Inc. | Fluid processing apparatus |
| CN213171605U (en) * | 2020-08-19 | 2021-05-11 | 深圳市环境科学研究院 | River groundwater pollutes normal position restoration module |
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| CN113354162A (en) | 2021-09-07 |
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