JPS5775122A - Method for removing sulfur dioxide in gas - Google Patents
Method for removing sulfur dioxide in gasInfo
- Publication number
- JPS5775122A JPS5775122A JP55149870A JP14987080A JPS5775122A JP S5775122 A JPS5775122 A JP S5775122A JP 55149870 A JP55149870 A JP 55149870A JP 14987080 A JP14987080 A JP 14987080A JP S5775122 A JPS5775122 A JP S5775122A
- Authority
- JP
- Japan
- Prior art keywords
- ions
- scrubbing liquid
- scrubbing
- hso
- soln
- 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
Landscapes
- Treating Waste Gases (AREA)
Abstract
PURPOSE: To perform oxidation scrubbing liquid easily and quickly by adding iron oxide to the scrubbing liquid thereby oxidizing the SO3 ions, HSO3 ions contained therein in scrubbing and removing the SO2 in waste gases by using an aq. NaOH soln.
CONSTITUTION: Waste combustion gases contg. SO2 1 are introduced into a scrubbing tower 2 from its lower part, and an aq. NaOH soln. is sprayed from the upper part, whereby the SO2 in the waste gases is dissolved in the scrubbing liquid as SO3 and HSO3 and clean air is released into the atmosphere through a stack 5 by an exhauster 4. In this case, the scrubbing liquid contains Na ions and SO3 ions owing to dissolution of SO2 and is recirculated to the tower 2 as scrubbing liquid of below 90°C and 7.5W12pH by a pump 3. When the pH value lowers by absorbing SO2, a concd. aq. soln. 7 of NaOH and water is added to control the pH, and part of the scrubbing liquid is subjected to aeration oxidation by air bubbles in an aerator 10. At the same time, iron oxide 13 such as scale is added to oxidize the SO3 ions and HSO3 ions quickly and decrease COD value, after which it is discharged.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55149870A JPS5775122A (en) | 1980-10-24 | 1980-10-24 | Method for removing sulfur dioxide in gas |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55149870A JPS5775122A (en) | 1980-10-24 | 1980-10-24 | Method for removing sulfur dioxide in gas |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5775122A true JPS5775122A (en) | 1982-05-11 |
Family
ID=15484447
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55149870A Pending JPS5775122A (en) | 1980-10-24 | 1980-10-24 | Method for removing sulfur dioxide in gas |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5775122A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104089331A (en) * | 2014-07-14 | 2014-10-08 | 王全龄 | Washing type air purifying system |
-
1980
- 1980-10-24 JP JP55149870A patent/JPS5775122A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104089331A (en) * | 2014-07-14 | 2014-10-08 | 王全龄 | Washing type air purifying system |
CN104089331B (en) * | 2014-07-14 | 2017-06-20 | 王全龄 | A kind of water-washing type air purification system |
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