JPS5534169A - Utilization method of water containing bivalent calcium - Google Patents
Utilization method of water containing bivalent calciumInfo
- Publication number
- JPS5534169A JPS5534169A JP10755278A JP10755278A JPS5534169A JP S5534169 A JPS5534169 A JP S5534169A JP 10755278 A JP10755278 A JP 10755278A JP 10755278 A JP10755278 A JP 10755278A JP S5534169 A JPS5534169 A JP S5534169A
- Authority
- JP
- Japan
- Prior art keywords
- calcium
- solids
- limestone
- gypsum
- containing bivalent
- 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
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 title abstract 4
- 229910052791 calcium Inorganic materials 0.000 title abstract 4
- 239000011575 calcium Substances 0.000 title abstract 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- 239000007787 solid Substances 0.000 abstract 4
- 239000010440 gypsum Substances 0.000 abstract 3
- 229910052602 gypsum Inorganic materials 0.000 abstract 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 abstract 2
- 229910052783 alkali metal Inorganic materials 0.000 abstract 2
- 150000001340 alkali metals Chemical class 0.000 abstract 2
- 238000006477 desulfuration reaction Methods 0.000 abstract 2
- 230000023556 desulfurization Effects 0.000 abstract 2
- 239000008235 industrial water Substances 0.000 abstract 2
- 150000003839 salts Chemical class 0.000 abstract 2
- 239000006228 supernatant Substances 0.000 abstract 2
- 208000004434 Calcinosis Diseases 0.000 abstract 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 abstract 1
- 235000019738 Limestone Nutrition 0.000 abstract 1
- 230000002745 absorbent Effects 0.000 abstract 1
- 239000002250 absorbent Substances 0.000 abstract 1
- 238000013019 agitation Methods 0.000 abstract 1
- -1 alkali metal Chemical class 0.000 abstract 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 abstract 1
- 150000001342 alkaline earth metals Chemical class 0.000 abstract 1
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract 1
- 229910001424 calcium ion Inorganic materials 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 abstract 1
- 239000006028 limestone Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 229910000029 sodium carbonate Inorganic materials 0.000 abstract 1
- 239000002562 thickening agent Substances 0.000 abstract 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
PURPOSE: To utilize supernatant for industrial water and solids as an absorbent by adding salt such as alkali metal, etc. to the exhaust solution containing bivalent calcium from a limestone-gypsum process exhaust gas desulfurization unit to let calcium deposit as solids.
CONSTITUTION: The water containing bivalent calcium, such as overflow water of thickener of gypsum in the limestone-gypsum exhaust gas desulfurization unit, is admitted through line 17 into a calcium processing tank 130. Here, salt such as alkali metals or alkaline earth metals such as sodium carbonate is added through line 13 with through agitation. Then, bivalent calcium ion becomes calcium carbonate and deposits as solids. Next, this is transferred into a thickner 140, where it is subjected to solid-liquid separation. The separated supernatant is used for industrial water for cleaning of demisters, sump eliminators, etc. and solids as a limestone raw material.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10755278A JPS5534169A (en) | 1978-09-04 | 1978-09-04 | Utilization method of water containing bivalent calcium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10755278A JPS5534169A (en) | 1978-09-04 | 1978-09-04 | Utilization method of water containing bivalent calcium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5534169A true JPS5534169A (en) | 1980-03-10 |
Family
ID=14462068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10755278A Pending JPS5534169A (en) | 1978-09-04 | 1978-09-04 | Utilization method of water containing bivalent calcium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5534169A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5929023A (en) * | 1982-08-11 | 1984-02-16 | Babcock Hitachi Kk | Reutilizing method of filtered water of desulfurizer |
| JPH0240288A (en) * | 1988-07-29 | 1990-02-09 | Nippon Kemitetsuku Kk | Production of calcium sulfate from slurry of waste liquid |
-
1978
- 1978-09-04 JP JP10755278A patent/JPS5534169A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5929023A (en) * | 1982-08-11 | 1984-02-16 | Babcock Hitachi Kk | Reutilizing method of filtered water of desulfurizer |
| JPH0240288A (en) * | 1988-07-29 | 1990-02-09 | Nippon Kemitetsuku Kk | Production of calcium sulfate from slurry of waste liquid |
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