JPS5765382A - Purification of waste water containing polyvinyl alcohol and/or polysaccharide - Google Patents
Purification of waste water containing polyvinyl alcohol and/or polysaccharideInfo
- Publication number
- JPS5765382A JPS5765382A JP14106880A JP14106880A JPS5765382A JP S5765382 A JPS5765382 A JP S5765382A JP 14106880 A JP14106880 A JP 14106880A JP 14106880 A JP14106880 A JP 14106880A JP S5765382 A JPS5765382 A JP S5765382A
- Authority
- JP
- Japan
- Prior art keywords
- agent
- waste
- water
- waste water
- polysaccharide
- 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)
Abstract
PURPOSE: To enhance purification effect of waste water, when waste water containing polyvinyl alcohol or polysaccharide is purified, by adding CaO or Ca(OH)2 and NaAlO2 to the waste water under a specified pH condition.
CONSTITUTION: When waste water containing polyvinyl alcohol or polysaccharide such as starch, e.g. waste desizing water in a textile industy, waste surface-sizing water or waste used paper water in the paper industry or waste domestic cleaning water, is purified, an agent A, comprising powdery or slurry CaO or Ca(OH)2, and an agent B, comprising NaAlO2 in a powdery or water solution state, are added as purifiers to the waste water under the condition of pH 4W10. The addition ratio of the agent A to the agent B is such that the agent A is added at a rate of 0.5W 10 as Ca(OH)2 by 1 of the agent B. The addition amount of the agent A is 200ppm or more as Ca(OH)2, while that of the agent B is 200W2,000ppm as Al2O3. Owing to these additives, the polyvinyl alcohol or polysaccharide is coagulated, flocculated and separated from the waste water.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14106880A JPS5815192B2 (en) | 1980-10-08 | 1980-10-08 | Method for treating wastewater containing polyvinyl alcohol and/or polysaccharides |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14106880A JPS5815192B2 (en) | 1980-10-08 | 1980-10-08 | Method for treating wastewater containing polyvinyl alcohol and/or polysaccharides |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5765382A true JPS5765382A (en) | 1982-04-20 |
JPS5815192B2 JPS5815192B2 (en) | 1983-03-24 |
Family
ID=15283485
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14106880A Expired JPS5815192B2 (en) | 1980-10-08 | 1980-10-08 | Method for treating wastewater containing polyvinyl alcohol and/or polysaccharides |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5815192B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0788478A (en) * | 1993-09-22 | 1995-04-04 | Kuraray Co Ltd | Wastewater treatment method |
US6207059B1 (en) * | 1998-03-23 | 2001-03-27 | Achemco, Inc. | Process for treating wastewater |
-
1980
- 1980-10-08 JP JP14106880A patent/JPS5815192B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0788478A (en) * | 1993-09-22 | 1995-04-04 | Kuraray Co Ltd | Wastewater treatment method |
US6207059B1 (en) * | 1998-03-23 | 2001-03-27 | Achemco, Inc. | Process for treating wastewater |
Also Published As
Publication number | Publication date |
---|---|
JPS5815192B2 (en) | 1983-03-24 |
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