JPS567680A - Removing method for phosphates in liquid - Google Patents
Removing method for phosphates in liquidInfo
- Publication number
- JPS567680A JPS567680A JP8313079A JP8313079A JPS567680A JP S567680 A JPS567680 A JP S567680A JP 8313079 A JP8313079 A JP 8313079A JP 8313079 A JP8313079 A JP 8313079A JP S567680 A JPS567680 A JP S567680A
- Authority
- JP
- Japan
- Prior art keywords
- liq
- phosphates
- contact
- calcium carbonate
- mineral
- 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
- 229910019142 PO4 Inorganic materials 0.000 title abstract 5
- 235000021317 phosphate Nutrition 0.000 title abstract 5
- 150000003013 phosphoric acid derivatives Chemical class 0.000 title abstract 5
- 238000000034 method Methods 0.000 title abstract 3
- 239000007788 liquid Substances 0.000 title 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract 3
- 239000011575 calcium Substances 0.000 abstract 3
- 229910052791 calcium Inorganic materials 0.000 abstract 3
- 239000002131 composite material Substances 0.000 abstract 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract 2
- 239000003513 alkali Substances 0.000 abstract 2
- 239000004568 cement Substances 0.000 abstract 2
- 239000003795 chemical substances by application Substances 0.000 abstract 2
- 239000000470 constituent Substances 0.000 abstract 2
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 2
- 239000011707 mineral Substances 0.000 abstract 2
- 239000002585 base Substances 0.000 abstract 1
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract 1
- 238000006114 decarboxylation reaction Methods 0.000 abstract 1
- 230000007774 longterm Effects 0.000 abstract 1
- 229910052585 phosphate mineral Inorganic materials 0.000 abstract 1
- 239000010865 sewage Substances 0.000 abstract 1
- 239000002351 wastewater Substances 0.000 abstract 1
Landscapes
- Water Treatment By Sorption (AREA)
- Removal Of Specific Substances (AREA)
Abstract
PURPOSE: To remove phosphates in a liq. stably and efficiently over a long time by allowing the liq. containing phosphates to contact to a composite consisting of cement, an alkali agent and a calcium carbonate-contg. mineral followed by contact dephosphorization.
CONSTITUTION: In a method of dephosphorizing a liq. such as sewage or industiral waste water by allowing dissolvable phosphates contained in the liq. to contact to a calcium phosphate-base phosphate mineral, the liq. is allowed to previously contact to a composite consisting of cement, an alkali agent and a calcium carbonate-contg. mineral. Thus, alkalinity constituents in the liq. are converted into calcium carbonate, which crystallizes and sticks to the composite, and then the liq. is softened in a decarboxylation process. Since alkalinity constituents are removed beforehand, phosphates can be removed efficiently and stably over a long term.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8313079A JPS6044996B2 (en) | 1979-06-30 | 1979-06-30 | How to remove phosphates from liquid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8313079A JPS6044996B2 (en) | 1979-06-30 | 1979-06-30 | How to remove phosphates from liquid |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS567680A true JPS567680A (en) | 1981-01-26 |
JPS6044996B2 JPS6044996B2 (en) | 1985-10-07 |
Family
ID=13793608
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8313079A Expired JPS6044996B2 (en) | 1979-06-30 | 1979-06-30 | How to remove phosphates from liquid |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6044996B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4707270A (en) * | 1985-01-31 | 1987-11-17 | Ube Industries, Ltd. | Process for treating waste water containing phosphorus compounds and/or organic cod substances |
-
1979
- 1979-06-30 JP JP8313079A patent/JPS6044996B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4707270A (en) * | 1985-01-31 | 1987-11-17 | Ube Industries, Ltd. | Process for treating waste water containing phosphorus compounds and/or organic cod substances |
Also Published As
Publication number | Publication date |
---|---|
JPS6044996B2 (en) | 1985-10-07 |
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