JPS5626584A - Disposal method for water containing phosphate - Google Patents
Disposal method for water containing phosphateInfo
- Publication number
- JPS5626584A JPS5626584A JP10280379A JP10280379A JPS5626584A JP S5626584 A JPS5626584 A JP S5626584A JP 10280379 A JP10280379 A JP 10280379A JP 10280379 A JP10280379 A JP 10280379A JP S5626584 A JPS5626584 A JP S5626584A
- Authority
- JP
- Japan
- Prior art keywords
- phosphates
- crystal seeds
- chlorine
- water containing
- calcium phosphate
- 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)
Abstract
PURPOSE: To remove phosphates with a high rate of removal, by a method wherein crystal seeds containing calcium phosphate treated by a chlorine agent and water containing the phosphates causing eutrophication are contacted.
CONSTITUTION: Crystal seeds (e.g. phosphate rock) containing calcium phosphate treated by a chlorine agent selected from a chlorine gas, chlorine water, sodium hydrochlorite, bleaching powder or heavy-duty bleaching powder and water containing phosphates are contacted, phosphate ions are crystallized on the crystal seeds in a form of calcium phosphate, and the phosphates are removed. It is preferable that the crystal seeds are treated by the chlorine agent when washing back a crystal seed bed, because impurities previously adhering onto the crystal seeds are removed, and the activity of the latter can be recovered, thus allowing the maintenance of the high efficiency of removal.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54102803A JPS6044997B2 (en) | 1979-08-14 | 1979-08-14 | How to treat water containing phosphates |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54102803A JPS6044997B2 (en) | 1979-08-14 | 1979-08-14 | How to treat water containing phosphates |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5626584A true JPS5626584A (en) | 1981-03-14 |
JPS6044997B2 JPS6044997B2 (en) | 1985-10-07 |
Family
ID=14337217
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54102803A Expired JPS6044997B2 (en) | 1979-08-14 | 1979-08-14 | How to treat water containing phosphates |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6044997B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59128044A (en) * | 1983-01-13 | 1984-07-24 | 株式会社京三製作所 | Waterproof type electric switch machine |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50152544A (en) * | 1974-05-29 | 1975-12-08 | ||
JPS5126752A (en) * | 1974-08-29 | 1976-03-05 | Ebara Infilco | Rinsanenruiofukumu ekinoshorihoho |
-
1979
- 1979-08-14 JP JP54102803A patent/JPS6044997B2/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50152544A (en) * | 1974-05-29 | 1975-12-08 | ||
JPS5126752A (en) * | 1974-08-29 | 1976-03-05 | Ebara Infilco | Rinsanenruiofukumu ekinoshorihoho |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59128044A (en) * | 1983-01-13 | 1984-07-24 | 株式会社京三製作所 | Waterproof type electric switch machine |
JPH0433670B2 (en) * | 1983-01-13 | 1992-06-03 | Kyosan Electric Mfg |
Also Published As
Publication number | Publication date |
---|---|
JPS6044997B2 (en) | 1985-10-07 |
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