JPS5658504A - Oil-water separating method - Google Patents
Oil-water separating methodInfo
- Publication number
- JPS5658504A JPS5658504A JP13572679A JP13572679A JPS5658504A JP S5658504 A JPS5658504 A JP S5658504A JP 13572679 A JP13572679 A JP 13572679A JP 13572679 A JP13572679 A JP 13572679A JP S5658504 A JPS5658504 A JP S5658504A
- Authority
- JP
- Japan
- Prior art keywords
- fine pores
- water
- pore sizes
- pressure
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE: To separate oil content and water continuously with a compact device by performing separation under pressure of less than critical pressure by using a polyvinyl alcohol porous hollow fiber membrane having fine pores of specific mean pore sizes and maximum pore sizes.
CONSTITUTION: Oil and water are separated by using a polyvinyl alcohol porous hollow fiber membrane having fine pores of 0.01W0.05μm mean pore sizes and 0.05W0.4μm maximum pore sizes. At this time, the pressure used is made less than critical value P=2γ/r (γ is the interfacial tension difference between the oil layer and the water layer, and r is the radius of the fine pores existing in the hollow fiber membrane). If the pressure is below the critical pressure P, the oil content particles cannot pass the fine pores and only the water passes the fine pores; therefore, the oil content and the water may be separated. In addition, in the phase where the interfacial tension difference γ is determined, the critical pressure P is higher as the radius r of the fine pores is smaller, hence, this method is advantageous.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13572679A JPS5658504A (en) | 1979-10-19 | 1979-10-19 | Oil-water separating method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13572679A JPS5658504A (en) | 1979-10-19 | 1979-10-19 | Oil-water separating method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5658504A true JPS5658504A (en) | 1981-05-21 |
Family
ID=15158440
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13572679A Pending JPS5658504A (en) | 1979-10-19 | 1979-10-19 | Oil-water separating method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5658504A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6393310A (en) * | 1986-10-08 | 1988-04-23 | Nippon Atom Ind Group Co Ltd | Oil-water separator provided with regeneration function |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5499082A (en) * | 1978-01-10 | 1979-08-04 | Asahi Chem Ind Co Ltd | Oil-water separating method |
-
1979
- 1979-10-19 JP JP13572679A patent/JPS5658504A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5499082A (en) * | 1978-01-10 | 1979-08-04 | Asahi Chem Ind Co Ltd | Oil-water separating method |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6393310A (en) * | 1986-10-08 | 1988-04-23 | Nippon Atom Ind Group Co Ltd | Oil-water separator provided with regeneration function |
JPH0455722B2 (en) * | 1986-10-08 | 1992-09-04 | Tokyo Shibaura Electric Co |
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