JPS54125170A - Removing method for malodor - Google Patents
Removing method for malodorInfo
- Publication number
- JPS54125170A JPS54125170A JP3285378A JP3285378A JPS54125170A JP S54125170 A JPS54125170 A JP S54125170A JP 3285378 A JP3285378 A JP 3285378A JP 3285378 A JP3285378 A JP 3285378A JP S54125170 A JPS54125170 A JP S54125170A
- Authority
- JP
- Japan
- Prior art keywords
- soln
- gas
- oxidizing
- treated
- chlorine
- 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 increase efficiency for removing malodorant, by bringing gas to be treated, contg. NH3, H2S, and mercaptanes, into contact with basic soln. of hypochlorous acid, then by making the gas contg. oxidizing chlorine and residual malodorous components contact with an acidic soln.
CONSTITUTION: The gas to be treated is introduced through an inlet pipe 5 into an oxidizing absorption tower 1, into which a soln. of hypochlorous acid prepared in a storage tank 8 to a pH not lower than 8 is admitted in drops by means of a circulation pump 9 in order to remove malodorous components. In that case, NH3 is oxidized to N2 or nitrogen oxides, and H2S to colloidal surfur, sulfuric acid, or sulfate which are absorbed by the soln. or released into the gas having been treated, while CH3SH remains as CH3SSCH3. Therefore, the gas at the outlet of the tower 1 is led to another oxidizing absorption tower 2, where residual malodorous components (CH3)2S2 etc. is oxidized and removed with oxidizing chlorine by circulating the soln. of hydrochloric acid, sulfuric acid etc. at a pH not higher than 3, the chlorine which is generated from, and accompanied by, the circulating soln.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3285378A JPS54125170A (en) | 1978-03-24 | 1978-03-24 | Removing method for malodor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3285378A JPS54125170A (en) | 1978-03-24 | 1978-03-24 | Removing method for malodor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54125170A true JPS54125170A (en) | 1979-09-28 |
Family
ID=12370385
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3285378A Pending JPS54125170A (en) | 1978-03-24 | 1978-03-24 | Removing method for malodor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54125170A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4307067A (en) * | 1979-04-23 | 1981-12-22 | Osaka Oxygen Industries Ltd. | Process for deodorizing exhaust gas containing smelly components |
-
1978
- 1978-03-24 JP JP3285378A patent/JPS54125170A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4307067A (en) * | 1979-04-23 | 1981-12-22 | Osaka Oxygen Industries Ltd. | Process for deodorizing exhaust gas containing smelly components |
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