RU2014115390A - METHOD FOR CLEANING WASTE WATER FROM FLUOR - Google Patents
METHOD FOR CLEANING WASTE WATER FROM FLUOR Download PDFInfo
- Publication number
- RU2014115390A RU2014115390A RU2014115390/05A RU2014115390A RU2014115390A RU 2014115390 A RU2014115390 A RU 2014115390A RU 2014115390/05 A RU2014115390/05 A RU 2014115390/05A RU 2014115390 A RU2014115390 A RU 2014115390A RU 2014115390 A RU2014115390 A RU 2014115390A
- Authority
- RU
- Russia
- Prior art keywords
- calcium
- fluorine
- containing reagent
- treating
- treatment
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract 5
- 239000002351 wastewater Substances 0.000 title claims abstract 3
- 238000004140 cleaning Methods 0.000 title 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract 6
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract 6
- 229910052791 calcium Inorganic materials 0.000 claims abstract 6
- 239000011575 calcium Substances 0.000 claims abstract 6
- 229910052731 fluorine Inorganic materials 0.000 claims abstract 6
- 239000011737 fluorine Substances 0.000 claims abstract 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract 4
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract 4
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract 2
- 239000001110 calcium chloride Substances 0.000 claims abstract 2
- 229910001628 calcium chloride Inorganic materials 0.000 claims abstract 2
- 239000000920 calcium hydroxide Substances 0.000 claims abstract 2
- 235000011116 calcium hydroxide Nutrition 0.000 claims abstract 2
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 claims abstract 2
- 238000000605 extraction Methods 0.000 claims abstract 2
- 238000001914 filtration Methods 0.000 claims abstract 2
- 239000007791 liquid phase Substances 0.000 claims abstract 2
- 238000000926 separation method Methods 0.000 claims abstract 2
- 239000007790 solid phase Substances 0.000 claims abstract 2
- 239000002699 waste material Substances 0.000 claims abstract 2
- 238000004065 wastewater treatment Methods 0.000 claims abstract 2
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- Removal Of Specific Substances (AREA)
Abstract
1. Способ очистки сточных вод от фтора путем обработки их известковым молоком до достижения pН 9-11, последующего разделения жидкой и твердой фаз отстаиванием и фильтрацией, отличающийся тем, что обработку ведут в присутствии кальцийсодержащего реагента, взятого в количестве, обеспечивающем массовое соотношение кальция и фтора (0,3-0,6):1 соответственно.2. Способ очистки сточных вод от фтора по п.1, отличающийся тем, что в качестве кальцийсодержащего реагента берут сульфат или хлорид кальция или фосфогипс - отход производства экстракционной фосфорной кислоты.1. A method of treating wastewater from fluorine by treating it with milk of lime until pH 9-11 is reached, subsequent separation of the liquid and solid phases by settling and filtration, characterized in that the treatment is carried out in the presence of a calcium-containing reagent, taken in an amount that provides a mass ratio of calcium and fluorine (0.3-0.6): 1, respectively. 2. The method of wastewater treatment from fluorine according to claim 1, characterized in that as a calcium-containing reagent take sulfate or calcium chloride or phosphogypsum is a waste product of the extraction of phosphoric acid.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2014115390/05A RU2570467C2 (en) | 2014-04-16 | 2014-04-16 | Method of purifying waste water from fluorine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2014115390/05A RU2570467C2 (en) | 2014-04-16 | 2014-04-16 | Method of purifying waste water from fluorine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2014115390A true RU2014115390A (en) | 2015-10-27 |
| RU2570467C2 RU2570467C2 (en) | 2015-12-10 |
Family
ID=54362560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2014115390/05A RU2570467C2 (en) | 2014-04-16 | 2014-04-16 | Method of purifying waste water from fluorine |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2570467C2 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1096236A1 (en) * | 1982-09-02 | 1984-06-07 | Череповецкое производственное объединение "Аммофос" | Method for purifying waste liquors contaning fluorides and ammonia |
| US5403495A (en) * | 1992-03-13 | 1995-04-04 | Tetra Technologies, Inc. | Fluoride removal system |
| JPH1057970A (en) * | 1996-08-19 | 1998-03-03 | Japan Organo Co Ltd | Fluorine-containing waste water treating device and its treatment |
| JP3473472B2 (en) * | 1999-02-05 | 2003-12-02 | 栗田工業株式会社 | Treatment method for fluorine-containing water |
| WO2002010104A1 (en) * | 2000-07-27 | 2002-02-07 | Jemco Inc. | Method of treating fluorine compound |
-
2014
- 2014-04-16 RU RU2014115390/05A patent/RU2570467C2/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| RU2570467C2 (en) | 2015-12-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20170417 |