JPS5456074A - Treating method for waste liquid - Google Patents

Treating method for waste liquid

Info

Publication number
JPS5456074A
JPS5456074A JP12183777A JP12183777A JPS5456074A JP S5456074 A JPS5456074 A JP S5456074A JP 12183777 A JP12183777 A JP 12183777A JP 12183777 A JP12183777 A JP 12183777A JP S5456074 A JPS5456074 A JP S5456074A
Authority
JP
Japan
Prior art keywords
contg
pollutant
org
austenic
press
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
JP12183777A
Other languages
Japanese (ja)
Inventor
Hiroyuki Ohashi
Hirohito Goto
Tadashi Suzuki
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.)
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Chemical Industry 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 Asahi Chemical Industry Co Ltd filed Critical Asahi Chemical Industry Co Ltd
Priority to JP12183777A priority Critical patent/JPS5456074A/en
Publication of JPS5456074A publication Critical patent/JPS5456074A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To treat waste liq. economically despite of a severely corrosive environment without requiring pretreatment of the waste gas, by using specific austenic stainless steel as equipment material for wet oxidation at elevated temp. and press. of acidic ammonium-sulfate-contg. waste liq. which contains org. pollutant of high concn.
CONSTITUTION: Acidic ammonium-sulfate-contg. waste liq. which contains high concn. of org. pollutant (e.g., a wate soln. 4W6.5 in pH, consisting usually of 5W20% ammonium sulfate, 2W10%org. pollutant, 500W5,000ppm cyanide, which is ischarged from AN manufacturing process) is wet-oxidized at elevated temp. and press. (e.g., 250W270°C, 70kg/cm2 G) by the contact of it with O2-contg. gas. As the material of the apparatus for the wet oxidation at elevated temp. and press. is used an austenic low-carbon stainless steel contg. Ni not less than 12% (e. g., SUS 316 L) or an austenic stabilized stainless steel (e.g., sUS 321)
COPYRIGHT: (C)1979,JPO&Japio
JP12183777A 1977-10-13 1977-10-13 Treating method for waste liquid Pending JPS5456074A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12183777A JPS5456074A (en) 1977-10-13 1977-10-13 Treating method for waste liquid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12183777A JPS5456074A (en) 1977-10-13 1977-10-13 Treating method for waste liquid

Publications (1)

Publication Number Publication Date
JPS5456074A true JPS5456074A (en) 1979-05-04

Family

ID=14821147

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12183777A Pending JPS5456074A (en) 1977-10-13 1977-10-13 Treating method for waste liquid

Country Status (1)

Country Link
JP (1) JPS5456074A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6061095A (en) * 1983-08-22 1985-04-08 スターリング・ドラツグ・インコーポレーテツド Liquid-gas injection system for wet type oxidizing reactor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS515221A (en) * 1974-07-04 1976-01-16 Dainichi Nippon Cables Ltd DODENYOARUMINIUMUGOKINOYOBISONO SEIHIN

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS515221A (en) * 1974-07-04 1976-01-16 Dainichi Nippon Cables Ltd DODENYOARUMINIUMUGOKINOYOBISONO SEIHIN

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6061095A (en) * 1983-08-22 1985-04-08 スターリング・ドラツグ・インコーポレーテツド Liquid-gas injection system for wet type oxidizing reactor

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