KR20040024041A - Oil seperation method of emulsion by intermolecular force - Google Patents
Oil seperation method of emulsion by intermolecular force Download PDFInfo
- Publication number
- KR20040024041A KR20040024041A KR1020020055516A KR20020055516A KR20040024041A KR 20040024041 A KR20040024041 A KR 20040024041A KR 1020020055516 A KR1020020055516 A KR 1020020055516A KR 20020055516 A KR20020055516 A KR 20020055516A KR 20040024041 A KR20040024041 A KR 20040024041A
- Authority
- KR
- South Korea
- Prior art keywords
- oil
- emulsion
- molecules
- water
- force
- Prior art date
Links
- 239000000839 emulsion Substances 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000011148 porous material Substances 0.000 claims abstract description 8
- 239000002351 wastewater Substances 0.000 claims abstract description 7
- 238000000926 separation method Methods 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims abstract 3
- 239000004744 fabric Substances 0.000 claims abstract 2
- 239000000835 fiber Substances 0.000 claims abstract 2
- 239000004745 nonwoven fabric Substances 0.000 claims abstract 2
- 239000003921 oil Substances 0.000 abstract description 24
- 238000007796 conventional method Methods 0.000 abstract description 2
- 239000010730 cutting oil Substances 0.000 abstract description 2
- 238000005406 washing Methods 0.000 abstract description 2
- 239000006185 dispersion Substances 0.000 abstract 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/04—Breaking emulsions
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (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)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Removal Of Floating Material (AREA)
Abstract
본 발명은 비수용성 절삭유 세척시에 발생하는 에멀전 폐수속의 에멀전유를 회수하는 유수분리 기술로서 현재 사용되고 있는 응집제나 분리막사용은 비용과 관리에 문제가 있다.The present invention is an oil and water separation technique for recovering emulsion oil in an emulsion wastewater generated when washing non-aqueous cutting oil, and the use of a flocculant or a separator currently used has problems in cost and management.
이방법은 경제적이고 간단할뿐 아니라 기존의 방법과는 달리 기름을 회수하여 재이용할 수 있는 특징이 있다.This method is not only economical and simple, but also has the characteristics that oil can be recovered and reused unlike conventional methods.
기름의 분자들 사이에는 약한 분자력의 일종인 반데르발스의 힘이 작용하는데 아주 짧은 거리에서 분자끼리는 매우 큰 힘으로 척력이 작용한다. 하지만 분자사이가 멀어지면, 약하지만 인력이 작용한다.The forces of van der Waals, a kind of weak molecular force, act between the molecules of oil, and at very short distances, the repulsive force acts with great force between them. But when the molecules are far apart, they are weak but attractive.
따라서 분자들 사이가 매우 가까운 상태에서도 척력을 훨씬 상회할 정도의 인력이 작용하도록 조건이 성립되면 분자끼리 결합될 수 있다.Therefore, if conditions are established so that the attraction force far exceeds the repulsive force even in a very close state between the molecules can be combined between the molecules.
섬유나 직물, 부직포와 같은 재료로 형성된 공극층에 기름이나 분자력이 강한 물질을 공극이 막히지 않게 고루 분산시킨후, 에멀전 폐수를 이 공극층에 통과시키면, 에멀전유는 통과중에 기름과 결합되며 기름이 증가하면 떨어져나가 물과 함께 흘러떠내려가게 된다. 물과 함께 떠내려온 기름들은 집수조에서 물위에 뜨게되어 분리된다.Dispersion of oil or a strong molecular force in the pore layer formed of materials such as fibers, fabrics, and nonwovens to prevent the pores from being clogged, then passing the emulsion wastewater through the pore layer, the emulsion oil is combined with the oil during the passage and the oil is If it increases, it will fall off and flow down with the water. The oil, which drifted with the water, floats on the water in the sump and is separated.
Description
본 발명은 비수용성 절삭유 세척시에 발생하는 에멀전 폐수속의 에멀전유를 회수하는 유수분리 기술로서 현재 사용되고 있는 응집제나 분리막사용은 비용과 관리면에서 문제가 많았다.The present invention is an oil and water separation technology for recovering emulsion oil in an emulsion wastewater generated when washing non-aqueous cutting oil, and the use of a flocculant or a separator used in the present invention has been problematic in terms of cost and management.
본 발명은 경제적이고 간단할뿐 아니라 기존의 방법과는 달리 기름을 회수하여 재이용할 수 있는 특징이 있다.The present invention is economical and simple, and unlike the conventional method, the oil can be recovered and reused.
기름의 분자들 사이에는 약한 분자력의 일종인 반데르발스의 힘이 작용하는데 아주 짧은 거리에서 분자끼리는 매우 큰 힘으로 척력이 작용한다. 분자사이가 멀어지면, 약하지만 인력이 작용한다.The forces of van der Waals, a kind of weak molecular force, act between the molecules of oil, and at very short distances, the repulsive force acts with great force between them. When the molecules are far apart, they are weak but attractive.
따라서 분자들 사이가 매우 가까운 상태에서도 척력을 훨씬 상회할 정도의 인력이 작용하도록 조건이 성립되면 분자끼리 결합될 수 있다.Therefore, if conditions are established so that the attraction force far exceeds the repulsive force even in a very close state between the molecules can be combined between the molecules.
그러한 조건이 성립되는 곳 중의 하나는 다량의 기름분자들이 결합되어 있는기름표면인데, 기름표면에서는 작은 에멀전유 하나에 대하여 수많은 기름분자의 인력이 작용하기 때문에 척력을 훨씬 상회하는 인력이 작용한다.One of such conditions is the oil surface, in which a large amount of oil molecules are combined, which attracts much more repulsive force due to the attraction of numerous oil molecules to one small emulsion oil.
그러므로 에멀전 폐수를 기름이나 분자력이 강한 물질을 함유한 공극층 사이를 천천히 통과하게 할 때 에멀전유는 공극층 내의 기름이나 분자력이 강한 물질과 결합되고, 기름이 증가하면 물의 흐름에 의해 떨어져 나오며, 집수조에서 기름들은 물위에 부상하여 분리된다.Therefore, when the emulsion wastewater is allowed to slowly pass between the pore layers containing oils or strong molecules, the emulsion oil is combined with the oils or strong molecules in the pore layers, and when the oil increases, it is separated by the flow of water, Oils float off the water and separate.
폐수속의 에멀전유는 공극층을 통과하는 사이에 기름과 결합되었다가 작은 방울로 떨어져 흘러나와 집수조에서 물위에 부상하여 분리된다.The emulsion oil in the wastewater combines with the oil through the pore layer, flows off into small droplets, and floats on the water in the sump to separate.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020020055516A KR20040024041A (en) | 2002-09-12 | 2002-09-12 | Oil seperation method of emulsion by intermolecular force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020020055516A KR20040024041A (en) | 2002-09-12 | 2002-09-12 | Oil seperation method of emulsion by intermolecular force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20040024041A true KR20040024041A (en) | 2004-03-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020020055516A KR20040024041A (en) | 2002-09-12 | 2002-09-12 | Oil seperation method of emulsion by intermolecular force |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0002524A2 (en) * | 1977-12-20 | 1979-06-27 | General Electric Company | Random fibrous matrix coalescer |
| KR870011048A (en) * | 1986-05-26 | 1987-12-19 | 사사쿠라 데쓰고로오 | Oil-water separation method and apparatus |
| JPH10192848A (en) * | 1997-01-08 | 1998-07-28 | Nec Tohoku Ltd | Waste water treatment apparatus and waste water treatment method thereof |
| JP2000288303A (en) * | 1999-04-06 | 2000-10-17 | Asahi Chem Ind Co Ltd | Oil-water separating filter and method for coarsely granulating and separating oil-water mixed liquid |
-
2002
- 2002-09-12 KR KR1020020055516A patent/KR20040024041A/en not_active Application Discontinuation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0002524A2 (en) * | 1977-12-20 | 1979-06-27 | General Electric Company | Random fibrous matrix coalescer |
| KR870011048A (en) * | 1986-05-26 | 1987-12-19 | 사사쿠라 데쓰고로오 | Oil-water separation method and apparatus |
| JPH10192848A (en) * | 1997-01-08 | 1998-07-28 | Nec Tohoku Ltd | Waste water treatment apparatus and waste water treatment method thereof |
| JP2000288303A (en) * | 1999-04-06 | 2000-10-17 | Asahi Chem Ind Co Ltd | Oil-water separating filter and method for coarsely granulating and separating oil-water mixed liquid |
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