JPS5765381A - Water purifier - Google Patents
Water purifierInfo
- Publication number
- JPS5765381A JPS5765381A JP14106780A JP14106780A JPS5765381A JP S5765381 A JPS5765381 A JP S5765381A JP 14106780 A JP14106780 A JP 14106780A JP 14106780 A JP14106780 A JP 14106780A JP S5765381 A JPS5765381 A JP S5765381A
- Authority
- JP
- Japan
- Prior art keywords
- water
- waste
- agent
- polysaccharide
- polyvinyl alcohol
- 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.)
- Pending
Links
Abstract
PURPOSE: To enhance clarification effect of waste water, when waste water containing polyvinyl alcohol or polysaccharide is clarified, by using CaO or Ca(OH)2 and NaAlO2 as purifiers.
CONSTITUTION: 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 waste water containing polyvinyl alcohol or polysaccharide such as starch, e.g., waste desizing water in the textile industry, waste surface-sizing water or waste used paper water in the paper industry or waste domestic cheaning water, under the condition of pH 4W10. The ratio of the agent A is 0.5W10 as Ca(OH)2 by one 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 and flocculated. The resultant flocks are separated from the water by precipitation or flotation.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14106780A JPS5765381A (en) | 1980-10-08 | 1980-10-08 | Water purifier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14106780A JPS5765381A (en) | 1980-10-08 | 1980-10-08 | Water purifier |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5765381A true JPS5765381A (en) | 1982-04-20 |
Family
ID=15283465
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14106780A Pending JPS5765381A (en) | 1980-10-08 | 1980-10-08 | Water purifier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5765381A (en) |
-
1980
- 1980-10-08 JP JP14106780A patent/JPS5765381A/en active Pending
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