JPS55152590A - Treatment of alkaline cleaning waste liquid used for deodorizing - Google Patents
Treatment of alkaline cleaning waste liquid used for deodorizingInfo
- Publication number
- JPS55152590A JPS55152590A JP6133579A JP6133579A JPS55152590A JP S55152590 A JPS55152590 A JP S55152590A JP 6133579 A JP6133579 A JP 6133579A JP 6133579 A JP6133579 A JP 6133579A JP S55152590 A JPS55152590 A JP S55152590A
- Authority
- JP
- Japan
- Prior art keywords
- waste liquid
- alkaline
- cleaning waste
- deodorizing
- treatment
- 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
Abstract
PURPOSE: To prevent odor from reproducing when pH is adjusted within the environmental regulation value for waste water by a method wherein acid is added to alkali cleaning waste liquid after used as deodorizer.
CONSTITUTION: An offensive odor gas is made of to contact an alkaline cleaning solution, and the obtained waste liquid is made to contaxt oxygen in the presence of active carbon. Preferably, the active carbon is added in amount of 0.1wt% or more to the alkali cleaning waste liquid in order to effect it as oxydation catalyst. Oxygen contacting the alkaline waste liquid may be in the condition of mixed gas such as air, only it is preferable to perform gas-liquid contact so that a 0.5ppm or more dissolved oxygen concentration is given in the waste alkaline solution. A 2ppm or more dissolved oxygen concentration is particularly effective to control the reproduction of bad odor and to dractically reduce treatment time.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6133579A JPS55152590A (en) | 1979-05-18 | 1979-05-18 | Treatment of alkaline cleaning waste liquid used for deodorizing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6133579A JPS55152590A (en) | 1979-05-18 | 1979-05-18 | Treatment of alkaline cleaning waste liquid used for deodorizing |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55152590A true JPS55152590A (en) | 1980-11-27 |
Family
ID=13168155
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6133579A Pending JPS55152590A (en) | 1979-05-18 | 1979-05-18 | Treatment of alkaline cleaning waste liquid used for deodorizing |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55152590A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0089536A2 (en) * | 1982-03-18 | 1983-09-28 | Rheinische Braunkohlenwerke AG. | Process of oxidation of hydrogen sulphide dissolved in waste water from coal-gasification plants |
US6843835B2 (en) | 2001-03-27 | 2005-01-18 | The Procter & Gamble Company | Air cleaning apparatus and method for cleaning air |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4949454A (en) * | 1972-09-13 | 1974-05-14 | ||
JPS50145367A (en) * | 1974-05-13 | 1975-11-21 | ||
JPS53125363A (en) * | 1977-03-30 | 1978-11-01 | Kernforschungsanlage Juelich | Method of oxidizing detrimental material capable of oxidizing in aqueous solution |
-
1979
- 1979-05-18 JP JP6133579A patent/JPS55152590A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4949454A (en) * | 1972-09-13 | 1974-05-14 | ||
JPS50145367A (en) * | 1974-05-13 | 1975-11-21 | ||
JPS53125363A (en) * | 1977-03-30 | 1978-11-01 | Kernforschungsanlage Juelich | Method of oxidizing detrimental material capable of oxidizing in aqueous solution |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0089536A2 (en) * | 1982-03-18 | 1983-09-28 | Rheinische Braunkohlenwerke AG. | Process of oxidation of hydrogen sulphide dissolved in waste water from coal-gasification plants |
EP0089536A3 (en) * | 1982-03-18 | 1985-10-30 | Rheinische Braunkohlenwerke AG. | Process of oxidation of hydrogen sulphide dissolved in waste water from coal-gasification plants |
US6843835B2 (en) | 2001-03-27 | 2005-01-18 | The Procter & Gamble Company | Air cleaning apparatus and method for cleaning air |
US7147692B2 (en) | 2001-03-27 | 2006-12-12 | The Procter & Gamble Company | Air cleaning apparatus and method for cleaning air |
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