JPS6230836B2 - - Google Patents
Info
- Publication number
- JPS6230836B2 JPS6230836B2 JP56140602A JP14060281A JPS6230836B2 JP S6230836 B2 JPS6230836 B2 JP S6230836B2 JP 56140602 A JP56140602 A JP 56140602A JP 14060281 A JP14060281 A JP 14060281A JP S6230836 B2 JPS6230836 B2 JP S6230836B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- phosphate
- packed bed
- fluorite
- calcium
- 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.)
- Expired
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 92
- 239000013078 crystal Substances 0.000 claims description 39
- 229910019142 PO4 Inorganic materials 0.000 claims description 31
- 235000021317 phosphate Nutrition 0.000 claims description 31
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 24
- 239000010452 phosphate Substances 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 22
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims description 21
- 239000010436 fluorite Substances 0.000 claims description 21
- 239000001506 calcium phosphate Substances 0.000 claims description 15
- 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 claims description 15
- 229910000389 calcium phosphate Inorganic materials 0.000 claims description 13
- 235000011010 calcium phosphates Nutrition 0.000 claims description 13
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 238000002425 crystallisation Methods 0.000 claims description 12
- 230000008025 crystallization Effects 0.000 claims description 12
- 229910052587 fluorapatite Inorganic materials 0.000 claims description 11
- 238000011282 treatment Methods 0.000 claims description 9
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 claims description 8
- 229910001424 calcium ion Inorganic materials 0.000 claims description 8
- 229910001610 cryolite Inorganic materials 0.000 claims description 8
- 150000003013 phosphoric acid derivatives Chemical class 0.000 claims description 8
- 229910052588 hydroxylapatite Inorganic materials 0.000 claims description 5
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 claims description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 4
- 229910000391 tricalcium phosphate Inorganic materials 0.000 claims description 2
- 235000019731 tricalcium phosphate Nutrition 0.000 claims description 2
- 229940078499 tricalcium phosphate Drugs 0.000 claims description 2
- 238000004458 analytical method Methods 0.000 claims 1
- 238000003672 processing method Methods 0.000 claims 1
- -1 hydroxyapatite Chemical compound 0.000 description 21
- 238000006243 chemical reaction Methods 0.000 description 16
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 15
- 239000011575 calcium Substances 0.000 description 15
- 239000002245 particle Substances 0.000 description 12
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 10
- 229910052791 calcium Inorganic materials 0.000 description 10
- 239000007864 aqueous solution Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 6
- 239000002367 phosphate rock Substances 0.000 description 6
- 239000011574 phosphorus Substances 0.000 description 6
- 229910052698 phosphorus Inorganic materials 0.000 description 6
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 5
- 239000001110 calcium chloride Substances 0.000 description 5
- 229910001628 calcium chloride Inorganic materials 0.000 description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 description 5
- 239000011707 mineral Substances 0.000 description 5
- 239000010865 sewage Substances 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 238000011001 backwashing Methods 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000012851 eutrophication Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 229910004261 CaF 2 Inorganic materials 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 238000011276 addition treatment Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
Landscapes
- Removal Of Specific Substances (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14060281A JPS5843280A (ja) | 1981-09-07 | 1981-09-07 | リン酸塩を含む水の処理方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14060281A JPS5843280A (ja) | 1981-09-07 | 1981-09-07 | リン酸塩を含む水の処理方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5843280A JPS5843280A (ja) | 1983-03-12 |
| JPS6230836B2 true JPS6230836B2 (fr) | 1987-07-04 |
Family
ID=15272515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14060281A Granted JPS5843280A (ja) | 1981-09-07 | 1981-09-07 | リン酸塩を含む水の処理方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5843280A (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63179029U (fr) * | 1987-05-13 | 1988-11-18 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS561151A (en) * | 1979-06-19 | 1981-01-08 | Sachiko Sano | Semicircular pack stimulating plantar arch |
-
1981
- 1981-09-07 JP JP14060281A patent/JPS5843280A/ja active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS561151A (en) * | 1979-06-19 | 1981-01-08 | Sachiko Sano | Semicircular pack stimulating plantar arch |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5843280A (ja) | 1983-03-12 |
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