JPS5756023A - Method and device for removing malodorous gas - Google Patents

Method and device for removing malodorous gas

Info

Publication number
JPS5756023A
JPS5756023A JP55130795A JP13079580A JPS5756023A JP S5756023 A JPS5756023 A JP S5756023A JP 55130795 A JP55130795 A JP 55130795A JP 13079580 A JP13079580 A JP 13079580A JP S5756023 A JPS5756023 A JP S5756023A
Authority
JP
Japan
Prior art keywords
sprayed
scrubbing tower
gas
scrubbing
alkaline
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
Application number
JP55130795A
Other languages
Japanese (ja)
Other versions
JPS644813B2 (en
Inventor
Nobuyoshi Umiga
Kiyotaro Iyasu
Fumie Shimada
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 JP55130795A priority Critical patent/JPS5756023A/en
Publication of JPS5756023A publication Critical patent/JPS5756023A/en
Publication of JPS644813B2 publication Critical patent/JPS644813B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Treating Waste Gases (AREA)

Abstract

PURPOSE: To prevent scale formation and obtain high effect of removing malodors with a minimum of chemical usage by performing water scrubbing or acid scrubbing in the forestage of cleaning with alkaline active carbon suspension.
CONSTITUTION: An aq. sulfuric acid soln. 6a is sprayed to the waste gas of a night soil charging tank in the 1st scrubbing tower 1 to absorb away the NH3 in the waste gas and to humidify the gas. Next, alkaline activated carbon suspension 6b of 10pH is sprayed in the 2nd scrubbing tower 9 to absorb off the greater part of the H2S in the gas. Since the pH of the suspension 6b decreases on absorption of H2S and CO2, a necessary amt. of the alkaline concd. liquid in a tank 12 is injected thereto by using a pH sensor 9, a pH controller 10 and a pump 11, whereby the pH is maintained constant. Next, in the 3rd scrubbing tower 14, an NaClO soln. is sprayed, and CH3SH and the like are absorbed and decomposed by oxidation. Finally, the alkaline activated carbon suspension of the 2nd scrubbing tower is conducted and sprayed in the 4th scrubbing tower 15 by means of a pump 16 to remove chlorine odors, after which the deodorized gas is discharged.
COPYRIGHT: (C)1982,JPO&Japio
JP55130795A 1980-09-22 1980-09-22 Method and device for removing malodorous gas Granted JPS5756023A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55130795A JPS5756023A (en) 1980-09-22 1980-09-22 Method and device for removing malodorous gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55130795A JPS5756023A (en) 1980-09-22 1980-09-22 Method and device for removing malodorous gas

Publications (2)

Publication Number Publication Date
JPS5756023A true JPS5756023A (en) 1982-04-03
JPS644813B2 JPS644813B2 (en) 1989-01-26

Family

ID=15042867

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55130795A Granted JPS5756023A (en) 1980-09-22 1980-09-22 Method and device for removing malodorous gas

Country Status (1)

Country Link
JP (1) JPS5756023A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5278757A (en) * 1975-12-26 1977-07-02 Seikow Chem Eng Mach Nasty smell removal
JPS5291777A (en) * 1976-01-26 1977-08-02 Teller Environmental Systems Method and apparatus for treating compounds containing smelling sulfur

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5278757A (en) * 1975-12-26 1977-07-02 Seikow Chem Eng Mach Nasty smell removal
JPS5291777A (en) * 1976-01-26 1977-08-02 Teller Environmental Systems Method and apparatus for treating compounds containing smelling sulfur

Also Published As

Publication number Publication date
JPS644813B2 (en) 1989-01-26

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