JPH0512999B2 - - Google Patents
Info
- Publication number
- JPH0512999B2 JPH0512999B2 JP61096422A JP9642286A JPH0512999B2 JP H0512999 B2 JPH0512999 B2 JP H0512999B2 JP 61096422 A JP61096422 A JP 61096422A JP 9642286 A JP9642286 A JP 9642286A JP H0512999 B2 JPH0512999 B2 JP H0512999B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- phosphate ions
- treated
- ions
- stirring tank
- 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 - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 125
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 105
- 238000002425 crystallisation Methods 0.000 claims description 93
- 230000008025 crystallization Effects 0.000 claims description 92
- 239000000463 material Substances 0.000 claims description 85
- 238000003756 stirring Methods 0.000 claims description 65
- 239000013081 microcrystal Substances 0.000 claims description 44
- 229910052586 apatite Inorganic materials 0.000 claims description 38
- VSIIXMUUUJUKCM-UHFFFAOYSA-D pentacalcium;fluoride;triphosphate Chemical compound [F-].[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 VSIIXMUUUJUKCM-UHFFFAOYSA-D 0.000 claims description 38
- 229910052588 hydroxylapatite Inorganic materials 0.000 claims description 32
- 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 32
- 229910001424 calcium ion Inorganic materials 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 28
- 239000011575 calcium Substances 0.000 claims description 25
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 claims description 21
- 239000002351 wastewater Substances 0.000 claims description 20
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 17
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 17
- 229910052791 calcium Inorganic materials 0.000 claims description 17
- 239000011574 phosphorus Substances 0.000 claims description 17
- 229910052698 phosphorus Inorganic materials 0.000 claims description 17
- 229940085991 phosphate ion Drugs 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 12
- 239000000843 powder Substances 0.000 claims description 10
- 150000002500 ions Chemical class 0.000 claims description 9
- 238000000926 separation method Methods 0.000 claims description 8
- 210000000988 bone and bone Anatomy 0.000 claims description 4
- 239000002367 phosphate rock Substances 0.000 claims description 2
- 238000003672 processing method Methods 0.000 claims 2
- 238000004458 analytical method Methods 0.000 claims 1
- 238000004065 wastewater treatment Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 14
- 239000013078 crystal Substances 0.000 description 11
- 239000010802 sludge Substances 0.000 description 9
- 239000002002 slurry Substances 0.000 description 9
- 238000002474 experimental method Methods 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- 239000003513 alkali Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000010842 industrial wastewater Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 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 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000001506 calcium phosphate Substances 0.000 description 2
- 229910000389 calcium phosphate Inorganic materials 0.000 description 2
- 235000011010 calcium phosphates Nutrition 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 239000008235 industrial water Substances 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 231100000676 disease causative agent Toxicity 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Substances OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 1
- -1 phosphoric acid ions Chemical class 0.000 description 1
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002344 surface layer 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 |
---|---|---|---|
JP9642286A JPS62250990A (ja) | 1986-04-25 | 1986-04-25 | リン酸イオンを含む排水の処理方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9642286A JPS62250990A (ja) | 1986-04-25 | 1986-04-25 | リン酸イオンを含む排水の処理方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS62250990A JPS62250990A (ja) | 1987-10-31 |
JPH0512999B2 true JPH0512999B2 (nl) | 1993-02-19 |
Family
ID=14164545
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9642286A Granted JPS62250990A (ja) | 1986-04-25 | 1986-04-25 | リン酸イオンを含む排水の処理方法 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62250990A (nl) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2598456B2 (ja) * | 1988-05-09 | 1997-04-09 | 川崎製鉄株式会社 | リン酸塩含有水の処理方法 |
JP2942563B2 (ja) * | 1988-12-19 | 1999-08-30 | 栗田工業株式会社 | 排水の脱リン方法 |
JP2535744B2 (ja) * | 1990-10-12 | 1996-09-18 | 工業技術院長 | リン酸イオン含有排水の処理方法 |
JP4631169B2 (ja) * | 2001-01-11 | 2011-02-16 | 栗田工業株式会社 | 正リン酸含有水の脱リン方法及び脱リン装置 |
JP4223334B2 (ja) * | 2003-06-18 | 2009-02-12 | アタカ大機株式会社 | リン回収装置 |
JP4759989B2 (ja) * | 2004-11-18 | 2011-08-31 | 栗田工業株式会社 | リン酸含有排水の処理方法 |
JP4821173B2 (ja) * | 2005-05-20 | 2011-11-24 | 日本錬水株式会社 | フッ化物イオン含有排水の処理方法 |
JP5344987B2 (ja) * | 2009-05-08 | 2013-11-20 | 幸雄 柳沢 | 脱リン材、脱リン装置および脱リン副産物 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6061092A (ja) * | 1983-09-14 | 1985-04-08 | Kurita Water Ind Ltd | 脱リン方法 |
JPS60225692A (ja) * | 1984-04-23 | 1985-11-09 | Hitachi Plant Eng & Constr Co Ltd | 接触晶析脱リン法の制御方法及び制御装置 |
-
1986
- 1986-04-25 JP JP9642286A patent/JPS62250990A/ja active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6061092A (ja) * | 1983-09-14 | 1985-04-08 | Kurita Water Ind Ltd | 脱リン方法 |
JPS60225692A (ja) * | 1984-04-23 | 1985-11-09 | Hitachi Plant Eng & Constr Co Ltd | 接触晶析脱リン法の制御方法及び制御装置 |
Also Published As
Publication number | Publication date |
---|---|
JPS62250990A (ja) | 1987-10-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |