JPS56155685A - Removal of fluorine ion from waste water - Google Patents
Removal of fluorine ion from waste waterInfo
- Publication number
- JPS56155685A JPS56155685A JP5052081A JP5052081A JPS56155685A JP S56155685 A JPS56155685 A JP S56155685A JP 5052081 A JP5052081 A JP 5052081A JP 5052081 A JP5052081 A JP 5052081A JP S56155685 A JPS56155685 A JP S56155685A
- Authority
- JP
- Japan
- Prior art keywords
- waste water
- fluorine ion
- calcium
- added
- removal
- 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.)
- Granted
Links
Abstract
PURPOSE: To simply and effectively remove fluorine ion present in waste water, by a method in which pH of waste water containing fluorine ion is regulated to an acid side, and then a calcium compound and iron powder are added to the waste water with stirring.
CONSTITUTION: An acid is added to a waste water containing fluorine ion from factories to regulate its pH to an acid side, or 5 or less. Then, a calcium-containing compound, e.g., calcium chloride, and iron powder are added to the waste with stirring. Thus, the fluorine ion is converted into calcium fluoride, and the calcium fluoride is adsorbed on the iron powder being dissolved partially and removed from the waste water.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5052081A JPS56155685A (en) | 1981-04-06 | 1981-04-06 | Removal of fluorine ion from waste water |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5052081A JPS56155685A (en) | 1981-04-06 | 1981-04-06 | Removal of fluorine ion from waste water |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2096777A Division JPS53115557A (en) | 1977-02-28 | 1977-02-28 | Method of removing detrimental material in drainage |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56155685A true JPS56155685A (en) | 1981-12-01 |
JPS5734035B2 JPS5734035B2 (en) | 1982-07-20 |
Family
ID=12861246
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5052081A Granted JPS56155685A (en) | 1981-04-06 | 1981-04-06 | Removal of fluorine ion from waste water |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56155685A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001025777A (en) * | 1999-07-15 | 2001-01-30 | Kurita Water Ind Ltd | Water treating method |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5925450A (en) * | 1982-07-31 | 1984-02-09 | Sharp Corp | In-line data communication device |
JPS6075961A (en) * | 1983-10-03 | 1985-04-30 | Tokyo Tatsuno Co Ltd | Transmitter of oil supply information |
CN105444775A (en) * | 2015-12-31 | 2016-03-30 | 歌尔科技有限公司 | Augmented reality navigation system, head-mounted device and navigation method |
-
1981
- 1981-04-06 JP JP5052081A patent/JPS56155685A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001025777A (en) * | 1999-07-15 | 2001-01-30 | Kurita Water Ind Ltd | Water treating method |
JP4507267B2 (en) * | 1999-07-15 | 2010-07-21 | 栗田工業株式会社 | Water treatment method |
Also Published As
Publication number | Publication date |
---|---|
JPS5734035B2 (en) | 1982-07-20 |
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