JPS55155789A - Dephosphorizing method of waste water containing phosphorus - Google Patents
Dephosphorizing method of waste water containing phosphorusInfo
- Publication number
- JPS55155789A JPS55155789A JP6365779A JP6365779A JPS55155789A JP S55155789 A JPS55155789 A JP S55155789A JP 6365779 A JP6365779 A JP 6365779A JP 6365779 A JP6365779 A JP 6365779A JP S55155789 A JPS55155789 A JP S55155789A
- Authority
- JP
- Japan
- Prior art keywords
- iron
- waste water
- lime
- water containing
- containing phosphorus
- 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 prevent the influx of P to lakes, ponds and harbors in particular and reuse the sludge as a soil improver by mixing iron chloride and iron sulfide as flocculant to the waste water containing phosphorus then subjecting the precipitation cake formed to mechanical primary dehydration thence mixing quick (slaked) lime and magnesia lime and performing secondary dehydration.
CONSTITUTION: Iron chloride and iron sulfide are added as flocculant to the waste water containing phosphorus so that the Fe amount becomes 5 times or more with respect to the P amount in the waste water. Next, the cohered and prcipitated cake formed is subjected to mechanical primary dehydration, after which quick (slaked) lime or magnesia lime is added at 30W40 parts per 100pts. of the 100pts. of the precipitated cake with stirring and mixing, thence it is subjected to secondary dehydration. Since this method enables the manufacture of iron salt by the utilization of the waste acid iron from the treating process for the iron alone, waste materials may be effectively utilized. Further, the resulted precipitated cake is dry powder form to the extent of permitting bagging, and therefore its spraying on the ground is easy as well.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6365779A JPS55155789A (en) | 1979-05-23 | 1979-05-23 | Dephosphorizing method of waste water containing phosphorus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6365779A JPS55155789A (en) | 1979-05-23 | 1979-05-23 | Dephosphorizing method of waste water containing phosphorus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55155789A true JPS55155789A (en) | 1980-12-04 |
Family
ID=13235630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6365779A Pending JPS55155789A (en) | 1979-05-23 | 1979-05-23 | Dephosphorizing method of waste water containing phosphorus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55155789A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4416779A (en) * | 1981-11-24 | 1983-11-22 | Ripl Wilhelm K | Method for producing an aqueous solution of high phosphorous content |
| CN1045940C (en) * | 1993-10-03 | 1999-10-27 | 周定才 | Yellow phosphorus containing waste water treatment by multi-stage oxidizing and settling |
| JP2007098325A (en) * | 2005-10-06 | 2007-04-19 | Kurita Water Ind Ltd | Treatment method and apparatus for fluorine-containing water |
| CN107473370A (en) * | 2017-08-09 | 2017-12-15 | 清华大学深圳研究生院 | The sewage disposal system and processing method that a kind of membrane bioreactor is combined with phosphorus recovery process |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5384358A (en) * | 1976-12-29 | 1978-07-25 | Daiki Engineering Co | Method of removing phosphorus and iron ion contained in waste water or like |
-
1979
- 1979-05-23 JP JP6365779A patent/JPS55155789A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5384358A (en) * | 1976-12-29 | 1978-07-25 | Daiki Engineering Co | Method of removing phosphorus and iron ion contained in waste water or like |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4416779A (en) * | 1981-11-24 | 1983-11-22 | Ripl Wilhelm K | Method for producing an aqueous solution of high phosphorous content |
| CN1045940C (en) * | 1993-10-03 | 1999-10-27 | 周定才 | Yellow phosphorus containing waste water treatment by multi-stage oxidizing and settling |
| JP2007098325A (en) * | 2005-10-06 | 2007-04-19 | Kurita Water Ind Ltd | Treatment method and apparatus for fluorine-containing water |
| CN107473370A (en) * | 2017-08-09 | 2017-12-15 | 清华大学深圳研究生院 | The sewage disposal system and processing method that a kind of membrane bioreactor is combined with phosphorus recovery process |
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