JPS54104647A - Removal of phosphates in liquid - Google Patents
Removal of phosphates in liquidInfo
- Publication number
- JPS54104647A JPS54104647A JP1029278A JP1029278A JPS54104647A JP S54104647 A JPS54104647 A JP S54104647A JP 1029278 A JP1029278 A JP 1029278A JP 1029278 A JP1029278 A JP 1029278A JP S54104647 A JPS54104647 A JP S54104647A
- Authority
- JP
- Japan
- Prior art keywords
- fed
- liquid
- treated water
- removal
- agent
- 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
- 229910019142 PO4 Inorganic materials 0.000 title abstract 4
- 239000007788 liquid Substances 0.000 title abstract 4
- 235000021317 phosphate Nutrition 0.000 title 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 title 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 4
- 239000003795 chemical substances by application Substances 0.000 abstract 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract 3
- 239000010452 phosphate Substances 0.000 abstract 3
- 239000002253 acid Substances 0.000 abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
- 230000002378 acidificating effect Effects 0.000 abstract 1
- 238000005273 aeration Methods 0.000 abstract 1
- 238000010979 pH adjustment Methods 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 abstract 1
- 229910000391 tricalcium phosphate Inorganic materials 0.000 abstract 1
Landscapes
- Removal Of Specific Substances (AREA)
- Water Treatment By Sorption (AREA)
Abstract
PURPOSE: To conduct simple and efficient removal of phosphate contained in a liquid and save initial and working costs by constructing two-stage packed column packed with phosphate ores containing Ca3(PO4)2, introducing a solution to be treated into a fluidized bed in the first column under the presence of Ca2+, and thereafter passing the solution through a fixed bed in the second column.
CONSTITUTION: A biologically secondarily treated water which has been removed of coarse solids is fed from a raw water inflow pipe 1, added with an acid (HCl, H2SO4, etc.) from an acid injector 6 for removing M-alkalinity components and adjusting the pH to 3-6, and fed to an acidic stripping device 9 for removal of M- alkalinity components by aeration. After pH adjusted to 6.0W11.0 and Ca agent added from after pH adjustment to 6.0W11.0 and Ca agent addition from a Ca agent adder 7, the liquid is fed to a fluidized bed 2 of phosphate ores while a portion is recirculated via a circulation pipe 5, then fed to a fixed bed 3 for dephosphorizing. Finally an innoxious liquid (treated water) is discharged from the system via a treated water outflow pipe 4.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1029278A JPS54104647A (en) | 1978-02-01 | 1978-02-01 | Removal of phosphates in liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1029278A JPS54104647A (en) | 1978-02-01 | 1978-02-01 | Removal of phosphates in liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54104647A true JPS54104647A (en) | 1979-08-17 |
Family
ID=11746211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1029278A Pending JPS54104647A (en) | 1978-02-01 | 1978-02-01 | Removal of phosphates in liquid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54104647A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5879589A (en) * | 1981-11-06 | 1983-05-13 | Hitachi Plant Eng & Constr Co Ltd | Removing method for phosphate ion |
| JP2014200781A (en) * | 2013-04-10 | 2014-10-27 | アタカ大機株式会社 | Phosphorus recovery apparatus and phosphorus recovery method |
-
1978
- 1978-02-01 JP JP1029278A patent/JPS54104647A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5879589A (en) * | 1981-11-06 | 1983-05-13 | Hitachi Plant Eng & Constr Co Ltd | Removing method for phosphate ion |
| JP2014200781A (en) * | 2013-04-10 | 2014-10-27 | アタカ大機株式会社 | Phosphorus recovery apparatus and phosphorus recovery method |
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