JPS55152590A - Treatment of alkaline cleaning waste liquid used for deodorizing - Google Patents

Treatment of alkaline cleaning waste liquid used for deodorizing

Info

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
Application number
JP6133579A
Other languages
Japanese (ja)
Inventor
Masayoshi Okamoto
Tomiaki Furuya
Terunobu Hayata
Yuichi Sato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP6133579A priority Critical patent/JPS55152590A/en
Publication of JPS55152590A publication Critical patent/JPS55152590A/en
Pending legal-status Critical Current

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
JP6133579A 1979-05-18 1979-05-18 Treatment of alkaline cleaning waste liquid used for deodorizing Pending JPS55152590A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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