JPS55114388A - Clarifying treatment of waste water - Google Patents
Clarifying treatment of waste waterInfo
- Publication number
- JPS55114388A JPS55114388A JP2131279A JP2131279A JPS55114388A JP S55114388 A JPS55114388 A JP S55114388A JP 2131279 A JP2131279 A JP 2131279A JP 2131279 A JP2131279 A JP 2131279A JP S55114388 A JPS55114388 A JP S55114388A
- Authority
- JP
- Japan
- Prior art keywords
- waste water
- added
- water
- precipitate
- silicic acid
- 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
Landscapes
- Removal Of Specific Substances (AREA)
- Water Treatment By Sorption (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
PURPOSE: To remove effectively metals, oils, and organic contaminants from waste water by the procedure in which an oily waste water containing silicic acid and metal salts is treated with a water-soluble silicate, an aluminum salt, and slaked lime, the precipitate is removed, and then the waste water is brought into contact with a solid adsorbent.
CONSTITUTION: A water-soluble silicate, such as sodium silicate, is added to an oily waste water containing silicic acid and metal salts in such a proportion that the concentration of the silicic acid becomes approx. 500ppm or more. Then, a water- soluble aluminum salt, such as aluminum polychloride or aluminum sulfate, is added to the waste water, and furthermore slaked lime is added to the waste water to adjust its pH to 10W12.5, preferably 11.5W12, to form precipitate. Then, the precipitate is removed, and a mineral acid is added to the waste water so treated to adjust its pH to 6W8, and the waste water is passed through a solid adsorbent, such as activated carbon or activated clay, or stirred with the solid adsorbent to remove residual organic contaminants.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2131279A JPS5948154B2 (en) | 1979-02-27 | 1979-02-27 | Wastewater purification method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2131279A JPS5948154B2 (en) | 1979-02-27 | 1979-02-27 | Wastewater purification method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55114388A true JPS55114388A (en) | 1980-09-03 |
JPS5948154B2 JPS5948154B2 (en) | 1984-11-24 |
Family
ID=12051627
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2131279A Expired JPS5948154B2 (en) | 1979-02-27 | 1979-02-27 | Wastewater purification method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5948154B2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006056022A1 (en) * | 2004-11-26 | 2006-06-01 | Hardman Australia Pty Ltd | Water treatment process |
JP2008173610A (en) * | 2007-01-22 | 2008-07-31 | Mhi Environment Engineering Co Ltd | Waste liquid treating method and waste liquid treatment system |
JP2012096178A (en) * | 2010-11-02 | 2012-05-24 | Aquas Corp | Flocculation treatment method for high concentration silica-containing water |
US9309134B2 (en) | 2008-04-29 | 2016-04-12 | Solvay (Societe Anonyme) | Method for purifying aqueous compositions |
CN112062249A (en) * | 2020-09-22 | 2020-12-11 | 神美科技有限公司 | Silicon removal agent, preparation method and application thereof |
-
1979
- 1979-02-27 JP JP2131279A patent/JPS5948154B2/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006056022A1 (en) * | 2004-11-26 | 2006-06-01 | Hardman Australia Pty Ltd | Water treatment process |
JP2008173610A (en) * | 2007-01-22 | 2008-07-31 | Mhi Environment Engineering Co Ltd | Waste liquid treating method and waste liquid treatment system |
US9309134B2 (en) | 2008-04-29 | 2016-04-12 | Solvay (Societe Anonyme) | Method for purifying aqueous compositions |
JP2012096178A (en) * | 2010-11-02 | 2012-05-24 | Aquas Corp | Flocculation treatment method for high concentration silica-containing water |
CN112062249A (en) * | 2020-09-22 | 2020-12-11 | 神美科技有限公司 | Silicon removal agent, preparation method and application thereof |
Also Published As
Publication number | Publication date |
---|---|
JPS5948154B2 (en) | 1984-11-24 |
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