CN110282765B - Filter for landfill leachate treatment - Google Patents
Filter for landfill leachate treatment Download PDFInfo
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- CN110282765B CN110282765B CN201910537384.3A CN201910537384A CN110282765B CN 110282765 B CN110282765 B CN 110282765B CN 201910537384 A CN201910537384 A CN 201910537384A CN 110282765 B CN110282765 B CN 110282765B
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- filter
- box body
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- filtering
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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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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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a filter for treating garbage percolate, which comprises a filter box body and supporting legs for supporting the filter box body, wherein the filter box body sequentially comprises a first filter box body and a second filter box body from top to bottom, a boss is arranged at the central position of the bottom end in the first filter box body, a filter pipeline is vertically inserted at the central position of the boss along the height of the boss, an automatic switch mechanism is arranged on the filter pipeline, the bottom end of the filter pipeline is connected with a spiral filter coil, the automatic switch mechanism comprises a water inlet plug horizontally arranged in the filter pipeline and floating balls arranged on the water inlet plug, and auxiliary filter mechanisms are arranged on the left side and the right side of the bottom end of the first filter box body. The later cleaning effect is avoided, and the filtering cost is greatly reduced.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a filter for treating landfill leachate.
Background
The landfill leachate is high-concentration organic wastewater with complex components generated in the landfill process of the garbage and mainly comes from precipitation infiltration, internal water content of the garbage and the like. If the domestic garbage is directly discharged without being treated, the pollution of underground water and surface water is easily caused, and the domestic garbage contains kitchen garbage, so that the domestic garbage not only contains impurities such as stones, fine sand and edible oil, but also contains microbial products (floccules), and thus, the leachate is also mixed with the impurities such as the stones, the fine sand, the edible oil and the floccules. Therefore, a filter is required to filter out impurities mixed in the leachate.
Patent granted publication No. CN 207375893U, which discloses a patent named "a landfill leachate multistage treatment device", solves the above problems, however, the patent has some defects, such as: a plurality of filters are needed, the cost is high, and the percolate needs to be treated one by one, so that the filtering efficiency of the filters is reduced.
Disclosure of Invention
The invention aims to provide a filter for treating landfill leachate so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a filter for treating landfill leachate comprises a filter box body and supporting legs for supporting the filter box body, wherein the filter box body sequentially comprises a first filter box body and a second filter box body from top to bottom, a boss is arranged at the central position of the bottom end in the first filter box body, a filter pipeline is vertically inserted at the central position of the boss along the height of the boss, an automatic switch mechanism is arranged on the filter pipeline, the bottom end of the filter pipeline is connected with a spiral filter coil, the spiral filter coil extends to the bottom end of the second filter box body and is connected with a drain outlet arranged on the second filter box body, a drain pipe is arranged at the bottom end of the second filter box body, and filter holes I are distributed on the surface of the spiral filter coil;
the automatic switch mechanism comprises a water inlet plug horizontally arranged in the filtering pipeline and a floating ball arranged on the water inlet plug, the floating ball is fixed on the water inlet plug through a fixed rope, the surface of the water inlet plug is provided with a water inlet hole, the density of the floating ball is less than that of water and greater than that of edible oil, the left side and the right side of the bottom end of the filtering box body are provided with auxiliary filtering mechanisms, the auxiliary filtering mechanism is symmetrical about the boss and comprises a three-way pipe which is formed by integrating a discharge pipe, a first filtering pipe and a filtering pipe, a switch valve arranged on the discharge pipe and a filtering plate arranged in the three-way pipe, the second filter pipe is communicated with the filter pipeline, the filter plate is obliquely arranged at the intersection between the first filter pipe and the second filter pipe, and the filter plate is distributed with a second filter hole, and the left side wall and the right side wall of the upper end of the first filter box body are respectively and correspondingly provided with a percolate inlet pipe and an oil discharge pipe.
Preferably, the spiral inner diameter of the spiral filtering coil pipe is gradually reduced from top to bottom.
Preferably, the spiral filtering coil pipe is processed by a PVC hose.
Preferably, when the floating ball floats upwards to enable the fixed rope arranged on the floating ball to be straightened, the height from the top end of the floating ball to the bottom end of the filtering box body is the same as the height from the oil discharge pipe to the bottom end of the filtering box body.
Preferably, the side wall of the bottom end of the spiral type filtering coil pipe is fixed at the bottom end in the second filtering box body through a fixed spring.
Compared with the prior art, the invention has the beneficial effects that:
(1) the automatic switch mechanism comprises a water inlet plug horizontally arranged in a filter pipe and a floating ball arranged on the water inlet plug, the floating ball is fixed on the water inlet plug through a fixing rope, the surface of the water inlet plug is provided with a water inlet hole, the density of the floating ball is smaller than that of water and larger than that of edible oil, the density of the floating ball is different from that of the water to realize the automatic opening and closing of the filter pipe by the floating ball with the density between the two floating balls, the buoyancy of the floating ball in the edible oil is smaller than the self gravity of the floating ball due to the fact that the density of the floating ball is larger than that of the edible oil, so that the port of the filter pipe cannot be opened when the floating ball is contacted with the edible oil, the edible oil is prevented from entering the filter pipe into a second filter box body, when the liquid level in the first filter box body rises continuously until the edible oil layer is not contacted with the floating ball, and the water below the edible oil layer begins to be contacted with the floating ball, because the density of floater is less than the density of water, when the surface of water and edible oil continued to rise, the floater also rose along with the surface of water, the floater drove fixed rope at the in-process that rises and straightens, when the floater was straightened fixed rope, the floater left the last port of filtering tube this moment, water and the floe of suspension in aqueous entered into spiral filter coil intraductally through filtering tube in the lump, and the edible oil layer was discharged outside the rose box through the oil drain pipe of filter box one and was collected or was handled the edible oil of discharging, thereby water and oil separation have been accomplished tentatively.
(2) When leachate enters into filtering box body one in, the great impurity of granule such as stone and sand deposits in filtering box body one's bottom to discharge from filtering box body one through supplementary filter mechanism, thereby accomplish the process of water and oil separation, also accomplished simultaneously and separated out large granule impurity such as sand and stone from mixed liquid, thereby improved the filter effect.
(3) The auxiliary filtering mechanism comprises a three-way pipe formed by integrating a discharge pipe, a first filtering pipe and a second filtering pipe, a switch valve arranged on the discharge pipe and a filtering plate arranged in the three-way pipe, wherein the second filtering pipe is communicated with the filtering pipe, the filtering plate is obliquely arranged at the intersection between the first filtering pipe and the second filtering pipe, filtering holes II are distributed on the filtering plate, when stones or sand in a filtering box body I are precipitated to a certain degree, the switch valve on the discharge pipe can be opened, the precipitated impurities and a small amount of water enter the three-way pipe together, the impurities entering the three-way pipe enter the filtering pipe through the second filtering holes and are discharged in a row under the action of the filtering plate, and most of the water entering the three-way pipe enters the filtering pipe through the second filtering pipe and enters the second filtering box body for collection, the collection rate of the water in the first filtering box body is improved.
(4) When mixed liquid after filtering oil and large particle impurities enters the spiral filter coil pipe, centrifugal force is generated under the action of the spiral filter coil pipe, water in the spiral filter coil pipe is scattered into the filter box body II through the filter holes I under the action of the centrifugal force, the effect of separating water from floccules is realized, the floccules in the spiral filter coil pipe can shake in the process of moving in the spiral filter coil pipe, the floccules slide down along the spiral filter coil pipe and are discharged from a sewage discharge port, the spiral filter coil pipe is prevented from being blocked by the floccules, meanwhile, the mixed liquid can also play a role of scouring the inner wall of the spiral filter coil pipe while sliding in the spiral filter coil pipe, the later cleaning effect is avoided, and the mixed liquid and the spiral filter coil pipe play a role of assisting each other, the impurities in the percolate can be filtered in multiple stages without electric equipment in the whole filtering process, so that the invention has the characteristic of energy saving and greatly reduces the filtering cost.
(5) According to the invention, the side wall of the bottom end of the spiral filtering coil is fixed at the bottom end in the filtering box body II through the fixing spring, so that the spiral filtering coil can shake better in the process of sliding liquid in the spiral filtering coil, and impurities adhered to the inner wall of the spiral filtering coil can be shaken off and discharged from the bottom end of the spiral filtering coil through the sewage outlet.
Therefore, the invention not only improves the filtration efficiency, but also utilizes the complementary effect of the mixed liquid and the spiral filtration coil pipe to not only separate the floccule from the water, simultaneously, the water to be filtered can also play a role of scouring the inner wall of the spiral filtration coil pipe, thereby avoiding the effect of later cleaning, and the whole filtration process has the characteristic of energy saving without electric equipment, and greatly reduces the filtration cost of the percolate.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is an enlarged view of a portion of FIG. 1 at B;
FIG. 4 is a schematic view of the filter plate construction.
In the figure: 1. a first filtering box body; 2. a second filtering box body; 3. a boss; 4. a filtration pipeline; 5. a filter coil; 6. a sewage draining outlet; 7. a first filtering hole; 8. a water inlet plug; 9. a floating ball; 10. fixing a rope; 11. a discharge pipe; 12. a first filter pipe; 13. a second filter pipe; 14. an on-off valve; 15. a filter plate; 16. a second filtering hole; 17. a percolate inlet pipe; 18. an oil discharge pipe; 19. fixing the spring; 20. and a water discharge pipe.
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.
Referring to fig. 1-4, an embodiment of the present invention is shown: a filter for treating landfill leachate comprises a filter box body and supporting legs for supporting the filter box body, wherein the filter box body sequentially comprises a first filter box body 1 and a second filter box body 2 from top to bottom, a boss 3 is arranged at the center of the bottom end in the filtering box body 1, a filtering pipeline 4 is vertically inserted along the height of the boss 3 at the center, an automatic switch mechanism is arranged on the filtering pipeline 4, the bottom end of the filtering pipeline 4 is connected with a spiral filtering coil pipe 5, the filtering pipeline 4 is also made of PVC material and is integrally formed with the filtering coil pipe 5, and the spiral filtering coil pipe 5 extends to the bottom end of the second filtering box body 2 and is connected with a sewage outlet 6 arranged on the second filtering box body 2, a drain pipe 20 is arranged at the bottom end of the filtering box body II 2, filtering holes I7 are distributed on the surface of the spiral filtering coil pipe 5, and the diameter range of the filtering holes I7 is 4-7 nm;
the automatic switch mechanism comprises a water inlet plug 8 horizontally arranged in the filter pipeline 4 and a floating ball 9 arranged on the water inlet plug 8, the floating ball 9 is fixed on the water inlet plug 8 through a fixing rope 10, the surface of the water inlet plug 8 is provided with a water inlet hole, the diameter of the water inlet hole is 0.5-0.8cm, the density of the floating ball 9 is less than that of water and greater than that of edible oil (in the embodiment, the density of the edible oil is 0.914kg/L), the left side and the right side of the bottom end of the filter box body I1 are provided with auxiliary filter mechanisms which are symmetrical about the boss 3, the auxiliary filter mechanisms comprise a three-way pipe which is formed by a discharge pipe 11, a filter pipe I12 and a filter pipe II 13, a switch valve 14 arranged on the discharge pipe 11 and a filter plate 15 arranged in the three-way pipe, the filter pipe II 13 is communicated with the filter pipeline 4, the filter plate 15 is obliquely arranged at the intersection between the filter pipe I12 and the filter pipe II 13, and the filter plate 15 is distributed with a second filter hole 16, the diameter of the second filter hole 16 is 0.1-0.5nm, and the left side wall and the right side wall of the upper end of the first filter box body 1 are respectively and correspondingly provided with a percolate inlet pipe 17 and an oil discharge pipe 18.
In this embodiment, spiral filter coil 5's spiral internal diameter is from last to descending gradually, and when the liquid that enters into spiral filter coil 5 came out from filtering hole 7, the liquid that prevents to come out scatters spiral filter coil 5 outer wall and enters into spiral filter coil 5 inner chamber once more through filtering hole 7.
In this embodiment, spiral filter coil 5 is formed by the processing of PVC hose, make spiral filter coil 5 not only have better corrosion resisting property, fall into spiral filter coil 5 from filter tube 4 when liquid, and produce centrifugal force under the effect along spiral filter coil 5, make water throw away from filtering hole 7 along the in-process of spiral filter coil 5 activity, meanwhile, spiral filter coil 5 rocks because of taking place under the effect of liquid, thereby can produce the effect of shake to the flocculus that lies in spiral filter coil 5, prevent that the flocculus from plugging up spiral filter coil 5.
In this embodiment, when the floating ball 9 floats upwards to straighten the fixing rope 10 disposed thereon, the top end of the floating ball 9 is at the same height from the bottom end of the first filtering box 1 as the oil discharge pipe 18, so that the oil floating on the water is conveniently discharged through the oil discharge pipe 18 to filter the oil in the percolate water.
In this embodiment, 5 bottom lateral walls of spiral filter coil pipe pass through fixed spring 19 to be fixed on filtering the bottom in box two 2, and the effect that can make spiral filter coil pipe 5 produce the shake when liquid in the gliding in-process of spiral filter coil pipe 5 is better to can shake off and follow 5 bottoms of spiral filter coil pipe and discharge by drain 6 the impurity of pasting on 5 inner walls of spiral filter coil pipe.
The working principle is as follows: the garbage percolate is a mixed liquid composed of water, stones, sand, edible oil, floccules suspended in the percolate and the like, firstly, the percolate enters the first filtering box body 1 from the percolate inlet pipe 17, so that the percolate liquid level in the filtering box body 1 rises, large-particle stones and sand in the percolate precipitate at the bottom end of the first filtering box body 1 and are discharged out of the first filtering box body 1 through an auxiliary filtering mechanism, thereby completing the separation of large-particle impurities such as sand and stones, the density of the edible oil mixed in the percolate is less than that of water, therefore, when the percolate enters the first filtering box body 1, the edible oil and the water are quickly layered, the edible oil floats on the water, when the liquid level of the first filtering box body rises gradually, the edible oil contacts the floating ball 9 firstly, and because the density of the floating ball 9 is greater than that of the edible oil, the buoyancy of the floating ball 9 in the edible oil is less than the gravity of the floating ball 9, therefore, the port of the filtering pipeline 4 cannot be opened when the floating ball 9 is contacted with the edible oil, so that the edible oil is prevented from entering the filtering box body 2 from the filtering pipeline 4, when the liquid level in the filtering box body 1 continues to rise until the edible oil layer is not contacted with the floating ball 9, the water below the edible oil layer starts to be contacted with the floating ball 9, because the density of the floating ball 9 is less than that of the water, when the water surface and the edible oil continue to rise, the floating ball 9 also rises along with the water surface, the floating ball 9 drives the fixing rope 10 to be straightened in the rising process, when the floating ball 9 straightens the fixing rope 10, the floating ball 9 leaves the upper port of the filtering pipeline 4, the water and the floccule suspended in the water enter the spiral filtering coil pipe 5 through the filtering pipeline 4, and the edible oil layer is discharged out of the filtering box body 1 through the oil discharge pipe 18 on the filtering box body 1 and collects or processes the discharged edible oil, at this moment, the separation of large-particle impurities such as stones and sands and the edible oil from the mixed liquid is simultaneously completed, the mixed liquid entering the spiral type filtering coil pipe 5 generates centrifugal force under the action of the spiral type filtering coil pipe 5, so that the water in the spiral type filtering coil pipe 5 can be scattered in the filtering box body 2 under the action of the centrifugal force through the filtering hole I7, the effect of separating the water from floccules is realized, the separated water can be discharged through the drain pipe 20, the discharged water can be collected for later use, at the moment, the mixed liquid can generate shaking effect on the floccules positioned in the spiral type filtering coil pipe 5 in the process of moving in the spiral type filtering coil pipe 5, the floccules slide down along the spiral type filtering coil pipe 5 and are discharged from the sewage discharge port 6, the discharged floccules can be collected and treated, prevent the floccule from blocking the spiral filter coil 5, meanwhile, the mixed liquid can also play a role of scouring the inner wall of the spiral filter coil 5 while sliding in the spiral filter coil 5, the later cleaning effect is avoided, when stones or sands in the filter box body I1 are precipitated to a certain degree, the switch valve 14 on the discharge pipe 11 can be opened, the precipitated impurities and a small amount of water enter the tee pipe together, the impurities entering the tee pipe enter the filter pipe under the action of the filter plate 15, the impurities and a small amount of water (the small amount of water can be ignored) enter the filter pipe I12 through the filter hole II 16 to be discharged, most of the water entering the tee pipe enters the filter pipeline 4 through the filter pipe II 13 and enters the filter box body II 2 to be collected, the impurities in the percolate can be filtered in multiple stages without electric equipment in the whole filtering process, therefore, the invention has the characteristic of energy saving, thereby greatly reducing the filtering cost.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (3)
1. The utility model provides a landfill leachate handles and uses filter, includes the filter box and is used for supporting the supporting leg that filters the box, its characterized in that: the filter box body sequentially comprises a first filter box body (1) and a second filter box body (2) from top to bottom, a boss (3) is arranged at the center position of the bottom end in the first filter box body (1), a filter pipeline (4) is vertically inserted along the height of the boss (3) at the center position, an automatic switch mechanism is arranged on the filter pipeline (4), the bottom end of the filter pipeline (4) is connected with a spiral filter coil (5), the spiral filter coil (5) extends to the bottom end of the second filter box body (2) and is connected with a drain outlet (6) arranged on the second filter box body (2), a drain pipe (20) is arranged at the bottom end of the second filter box body (2), and first filter holes (7) are distributed on the surface of the spiral filter coil (5);
the automatic switching mechanism comprises a water inlet plug (8) horizontally arranged in the filter pipeline (4) and a floating ball (9) arranged on the water inlet plug (8), the floating ball (9) is fixed on the water inlet plug (8) through a fixing rope (10), a water inlet hole is formed in the surface of the water inlet plug (8), the density of the floating ball (9) is smaller than that of water and larger than that of edible oil, auxiliary filter mechanisms are arranged on the left side and the right side of the bottom end of the filter box body I (1) and are symmetrical relative to the boss (3), each auxiliary filter mechanism comprises a three-way pipe, a switching valve (14) arranged on the discharge pipe (11) and a filter plate (15) arranged in the three-way pipe, the filter pipe II (13) is communicated with the filter pipeline (4), the filter plate (15) is obliquely arranged at the intersection between the filter pipe I (12) and the filter pipe II (13), a second filter hole (16) is distributed on the filter plate (15), and a percolate inlet pipe (17) and an oil discharge pipe (18) are correspondingly arranged on the left side wall and the right side wall of the upper end of the first filter box body (1) respectively;
the spiral inner diameter of the spiral filtering coil pipe (5) is gradually decreased from top to bottom, and the spiral filtering coil pipe (5) is formed by processing a PVC hose.
2. The filter for landfill leachate treatment according to claim 1, wherein: when the floating ball (9) floats upwards to enable the fixed rope (10) arranged on the floating ball to be straightened, the height from the top end of the floating ball (9) to the bottom end of the first filtering box body (1) is the same as the height from the oil discharge pipe (18) to the bottom end of the first filtering box body (1).
3. The filter for landfill leachate treatment according to claim 1, wherein: and the side wall of the bottom end of the spiral type filtering coil pipe (5) is fixed at the bottom end in the second filtering box body (2) through a fixed spring (19).
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CN201910537384.3A CN110282765B (en) | 2019-06-20 | 2019-06-20 | Filter for landfill leachate treatment |
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CN201910537384.3A CN110282765B (en) | 2019-06-20 | 2019-06-20 | Filter for landfill leachate treatment |
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CN110282765B true CN110282765B (en) | 2022-02-15 |
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CN112707528A (en) * | 2020-12-30 | 2021-04-27 | 温州大学瓯江学院 | Kitchen waste processor capable of accurately separating oil from water |
CN116422050B (en) * | 2023-06-13 | 2023-09-01 | 广东德森环保科技有限公司 | Energy-saving efficient sewage treatment system |
CN117164035B (en) * | 2023-11-02 | 2024-01-05 | 天津市联合环保工程设计有限公司 | Sewage and wastewater treatment equipment |
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CN207805198U (en) * | 2018-01-08 | 2018-09-04 | 宜昌浩海科技开发有限公司 | A kind of improved y-type filter |
CN207933142U (en) * | 2017-12-08 | 2018-10-02 | 湖北满枉环保科技有限公司 | A kind of kitchen garbage oil-water separation device for swill |
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DE4303058A1 (en) * | 1992-02-04 | 1993-08-05 | Gollinger Betonwerk Gmbh | Oil separator unit - comprises cylindrical container divided into coarse oil separator and connected coarse separator and outlet issuing from residual separator |
CA2614231A1 (en) * | 2006-08-17 | 2008-02-17 | Dejon Costello | Fluid treatment method and apparatus |
CN202460196U (en) * | 2012-01-19 | 2012-10-03 | 吴海洋 | Oil-water separation device |
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