JPS5547181A - Wet type treatment of waste water from waste gas desulfurization - Google Patents
Wet type treatment of waste water from waste gas desulfurizationInfo
- Publication number
- JPS5547181A JPS5547181A JP10595678A JP10595678A JPS5547181A JP S5547181 A JPS5547181 A JP S5547181A JP 10595678 A JP10595678 A JP 10595678A JP 10595678 A JP10595678 A JP 10595678A JP S5547181 A JPS5547181 A JP S5547181A
- Authority
- JP
- Japan
- Prior art keywords
- waste water
- ions
- dithionate
- treatment
- gas desulfurization
- 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
- 239000002351 wastewater Substances 0.000 title abstract 5
- 238000006477 desulfuration reaction Methods 0.000 title abstract 2
- 230000023556 desulfurization Effects 0.000 title abstract 2
- 239000002912 waste gas Substances 0.000 title abstract 2
- 150000002500 ions Chemical class 0.000 abstract 5
- 229940075933 dithionate Drugs 0.000 abstract 4
- 239000003513 alkali Substances 0.000 abstract 3
- 229910052782 aluminium Inorganic materials 0.000 abstract 3
- 239000002244 precipitate Substances 0.000 abstract 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 2
- 239000000701 coagulant Substances 0.000 abstract 2
- 150000004645 aluminates Chemical class 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 229910052602 gypsum Inorganic materials 0.000 abstract 1
- 239000010440 gypsum Substances 0.000 abstract 1
- 229910001385 heavy metal Inorganic materials 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 229910052748 manganese Inorganic materials 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000005979 thermal decomposition reaction Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Treating Waste Gases (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Removal Of Specific Substances (AREA)
Abstract
PURPOSE: To completely remove dithionate ions conventionally removable only by use of thermal decomposition requiring a large quantity of heat, aluminum containing coagulant and an excessive amount of alkali are used together to produce coagulated precipitate for removal.
CONSTITUTION: In treatment of waste water containing dithionate ion discharged from limestone-gypsum waste gas desulfurization process, the waste water is subjected to an alkali treatment and then filtered, thereby removing SS and heavy metals such as Fe, Mn, Al, etc. as filtered coagulated precipitate. In this stage of treatment, the waste water contains S2O6 -2 ions of a thousand and several hundreds ppm, to which is added an inorganic coagulant containing aluminum and the water is made to pH 10 or greater by adding alkali agent. This produces hardly soluble hydrated aluminate which adsorbs dithionate ions and settles as precipitate to be removed. As a result, the content of dithionate ions in the waste water falls to 10ppm or less.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10595678A JPS5547181A (en) | 1978-08-30 | 1978-08-30 | Wet type treatment of waste water from waste gas desulfurization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10595678A JPS5547181A (en) | 1978-08-30 | 1978-08-30 | Wet type treatment of waste water from waste gas desulfurization |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5547181A true JPS5547181A (en) | 1980-04-03 |
| JPS6232995B2 JPS6232995B2 (en) | 1987-07-17 |
Family
ID=14421262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10595678A Granted JPS5547181A (en) | 1978-08-30 | 1978-08-30 | Wet type treatment of waste water from waste gas desulfurization |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5547181A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04131232U (en) * | 1991-05-27 | 1992-12-02 | 松下電工株式会社 | Bathtub support structure |
| CN100450943C (en) * | 2006-12-31 | 2009-01-14 | 湖南华迪电力环保工程技术有限公司 | Method and system unit for flue gas desulfurization and wastewater treatment |
-
1978
- 1978-08-30 JP JP10595678A patent/JPS5547181A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04131232U (en) * | 1991-05-27 | 1992-12-02 | 松下電工株式会社 | Bathtub support structure |
| CN100450943C (en) * | 2006-12-31 | 2009-01-14 | 湖南华迪电力环保工程技术有限公司 | Method and system unit for flue gas desulfurization and wastewater treatment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6232995B2 (en) | 1987-07-17 |
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