JPS55155786A - Decoloring treating method of dyeing waste water - Google Patents
Decoloring treating method of dyeing waste waterInfo
- Publication number
- JPS55155786A JPS55155786A JP6327779A JP6327779A JPS55155786A JP S55155786 A JPS55155786 A JP S55155786A JP 6327779 A JP6327779 A JP 6327779A JP 6327779 A JP6327779 A JP 6327779A JP S55155786 A JPS55155786 A JP S55155786A
- Authority
- JP
- Japan
- Prior art keywords
- waste water
- dyeing waste
- salt
- water
- decoloring
- 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
- Water Treatment By Sorption (AREA)
Abstract
PURPOSE: To de-dye the dyeing waste water to colorless and transparent one and perform sedimentation-separation in a short time by mixing the dyeing waste water and Al(OH)3 and Al2O3 or further water-insoluble Ca salt in an alkaline region of the specified pH then neutralizing the same by acids.
CONSTITUTION: The dyeing waste water and Al(OH)3 and Al2O3 or further water- insoluble Ca salt such as CaCO3 are mixed at a ratio of Al salt: water-insoluble Ca salt =3:1W1:3 (molar ratio) to pH or more, preferably about 9W10. Thence, this mixed solution is neutralized by acids and the sludge formed is separated and this is recycled for the decoloring of the dyeing waste water directly or after it has been heated to 100W450°C. This method enables the removal of the dyes of the dyeing waste water to 99.9% or more and nevertheless makes possible the recycling of the sludge, obviates the production of sludge waste and enables the operation in a closed system.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6327779A JPS5913912B2 (en) | 1979-05-24 | 1979-05-24 | Decolorization treatment method for dyed wastewater |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6327779A JPS5913912B2 (en) | 1979-05-24 | 1979-05-24 | Decolorization treatment method for dyed wastewater |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55155786A true JPS55155786A (en) | 1980-12-04 |
JPS5913912B2 JPS5913912B2 (en) | 1984-04-02 |
Family
ID=13224648
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6327779A Expired JPS5913912B2 (en) | 1979-05-24 | 1979-05-24 | Decolorization treatment method for dyed wastewater |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5913912B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103274492A (en) * | 2013-06-21 | 2013-09-04 | 东华大学 | Method for treating waste water by using cyclic regeneration porous hollow aluminum oxide nano fiber |
-
1979
- 1979-05-24 JP JP6327779A patent/JPS5913912B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103274492A (en) * | 2013-06-21 | 2013-09-04 | 东华大学 | Method for treating waste water by using cyclic regeneration porous hollow aluminum oxide nano fiber |
Also Published As
Publication number | Publication date |
---|---|
JPS5913912B2 (en) | 1984-04-02 |
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