JPS55102490A - Treatment of water containing borofluoric acid and borofluoride of heavy metal - Google Patents
Treatment of water containing borofluoric acid and borofluoride of heavy metalInfo
- Publication number
- JPS55102490A JPS55102490A JP768579A JP768579A JPS55102490A JP S55102490 A JPS55102490 A JP S55102490A JP 768579 A JP768579 A JP 768579A JP 768579 A JP768579 A JP 768579A JP S55102490 A JPS55102490 A JP S55102490A
- Authority
- JP
- Japan
- Prior art keywords
- borofluorides
- added
- water containing
- main agent
- decomposition
- 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 precipitate and remove borofluorides in a short time by the procedure in which aluminum sulfate and ferric chloride as main agent and aqueous ammonia as assistant are added to a water containing borofluorides to decompose the borofluorides and then calcium hydroxide is added to the water.
CONSTITUTION: Aluminum sulfate and ferric chloride as main agent and an assistant, such as aqueous ammonia, ammonium sulfate, ammonium chloride, or urea, are added to a water containing borofluoric acid and the borofluorides of heavy metals to decompose the borofluorides. Then calcium hydroxide is added to the water to convert the decomposition products into insoluble fluorides for sedimentation and also part of the products is adsorbed in the main agent used for decomposition and then precipitated. Then, the precipitates are subjected to a solid-liquid separation. Thus, the amount of the chemicals used can be saved, the decomposition time can be shortened, and most of the borofluorides and heavy metals are removed concurrently.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP768579A JPS55102490A (en) | 1979-01-27 | 1979-01-27 | Treatment of water containing borofluoric acid and borofluoride of heavy metal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP768579A JPS55102490A (en) | 1979-01-27 | 1979-01-27 | Treatment of water containing borofluoric acid and borofluoride of heavy metal |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55102490A true JPS55102490A (en) | 1980-08-05 |
JPS6257398B2 JPS6257398B2 (en) | 1987-12-01 |
Family
ID=11672635
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP768579A Granted JPS55102490A (en) | 1979-01-27 | 1979-01-27 | Treatment of water containing borofluoric acid and borofluoride of heavy metal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55102490A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1076276A (en) * | 1996-09-06 | 1998-03-24 | Unitika Ltd | Treatment method for wastewater containing boron |
ES2336298A1 (en) * | 2008-10-08 | 2010-04-09 | Fundacion Investigacion E Innovacion Para El Desarrollo Social | Wastewater depression system with elimination of heavy metals, free of bacteria and germs, without emission of methane or co2 to the atmosphere, recovering the reagents used in the process. (Machine-translation by Google Translate, not legally binding) |
-
1979
- 1979-01-27 JP JP768579A patent/JPS55102490A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1076276A (en) * | 1996-09-06 | 1998-03-24 | Unitika Ltd | Treatment method for wastewater containing boron |
ES2336298A1 (en) * | 2008-10-08 | 2010-04-09 | Fundacion Investigacion E Innovacion Para El Desarrollo Social | Wastewater depression system with elimination of heavy metals, free of bacteria and germs, without emission of methane or co2 to the atmosphere, recovering the reagents used in the process. (Machine-translation by Google Translate, not legally binding) |
Also Published As
Publication number | Publication date |
---|---|
JPS6257398B2 (en) | 1987-12-01 |
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