JPS55137085A - Treating method of phosphoric acid containing exhaust water - Google Patents
Treating method of phosphoric acid containing exhaust waterInfo
- Publication number
- JPS55137085A JPS55137085A JP4383279A JP4383279A JPS55137085A JP S55137085 A JPS55137085 A JP S55137085A JP 4383279 A JP4383279 A JP 4383279A JP 4383279 A JP4383279 A JP 4383279A JP S55137085 A JPS55137085 A JP S55137085A
- Authority
- JP
- Japan
- Prior art keywords
- water
- flocks
- tank
- filtered
- exhaust water
- 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
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Removal Of Specific Substances (AREA)
- Filtration Of Liquid (AREA)
Abstract
PURPOSE: To carry out the removal of phosphorous without exhausting washing exhaust water out of a system by a method wherein a phosphoric acid containing exhaust water added with a flocculating agent is filtered by a moving bed type filtering machine and the flocks within a washed and polluted exhaust water exhausted from a filter material washing system are separated, thereafter a supernatant water is returned to an original exhaust water.
CONSTITUTION: The raw water 101 introduced into a raw water tank is supplied under pressure by a pump 103 and, after an inorg. type flocculating agent 104 is added and mixed by an in-line mixer 105, filtered by a moving bed type filtering machine 106 to obtain a filtered and treated water. Subsequently, an org. type high molecular flocculating agent 110 is poured to a washed and polluted water 109 continuously exhausted from a filter material regenerating and separating tower 108 and, after mixed by an in-line mixer 111 to grow flocks, the flocks are separated by precipitation in a precipitating tank 112 and an overflowed supernatant water 113 is returned to a raw water tank 102. On the other hand, the flocks precipitated in a precipitating tank 112 is concentrated in a sludge storage tank 115 and, after a filter aid is added, exhausted as a dehydrated cake 119 by a dehydrating machine 118.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4383279A JPS55137085A (en) | 1979-04-10 | 1979-04-10 | Treating method of phosphoric acid containing exhaust water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4383279A JPS55137085A (en) | 1979-04-10 | 1979-04-10 | Treating method of phosphoric acid containing exhaust water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55137085A true JPS55137085A (en) | 1980-10-25 |
Family
ID=12674718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4383279A Pending JPS55137085A (en) | 1979-04-10 | 1979-04-10 | Treating method of phosphoric acid containing exhaust water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55137085A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04227895A (en) * | 1990-04-26 | 1992-08-17 | Passavant Werke Ag | Method for removing phosphorus and suspended matter from waste water |
-
1979
- 1979-04-10 JP JP4383279A patent/JPS55137085A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04227895A (en) * | 1990-04-26 | 1992-08-17 | Passavant Werke Ag | Method for removing phosphorus and suspended matter from waste water |
| US5154830A (en) * | 1990-04-26 | 1992-10-13 | Passavant-Werke Ag | Process of removing phosphorus and suspended matter from waste water |
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