JPS5584598A - Treatment of cyanide-containing waste water from manufacturing process of organic compound - Google Patents

Treatment of cyanide-containing waste water from manufacturing process of organic compound

Info

Publication number
JPS5584598A
JPS5584598A JP15577778A JP15577778A JPS5584598A JP S5584598 A JPS5584598 A JP S5584598A JP 15577778 A JP15577778 A JP 15577778A JP 15577778 A JP15577778 A JP 15577778A JP S5584598 A JPS5584598 A JP S5584598A
Authority
JP
Japan
Prior art keywords
waste water
cyanide
containing waste
thiocyanates
polysulfide
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
JP15577778A
Other languages
Japanese (ja)
Inventor
Satoru Yoshigaki
Moriori Miura
Hideo Goshima
Daigaku Yamauchi
Mitsuo Kobayashi
Kazuhide Kitamura
Toshitane Edayoshi
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.)
Ebara Corp
Ouchi Shinko Chemical Industrial Co Ltd
Original Assignee
Ebara Infilco Co Ltd
Ouchi Shinko Chemical Industrial 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 Ebara Infilco Co Ltd, Ouchi Shinko Chemical Industrial Co Ltd filed Critical Ebara Infilco Co Ltd
Priority to JP15577778A priority Critical patent/JPS5584598A/en
Publication of JPS5584598A publication Critical patent/JPS5584598A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To make cyanides harmless by adding a polysulfide to cyanide-containing waste water followed by a biological treatment.
CONSTITUTION: In the first place, cyanides are converted lnto thiocyanates of low toxicity by the addition of a polysulfide to cyanide-containing waste water in the first process, and then the thiocyanates formed are treated biologically in the addition of organic nutriments to the thiocyanates-containing liquid in order to make them harmless completely in the second process. The preferred amount of polysulfide to be added in the first process is equivalent or more of cyanogen ion (CN-) present in the waste water and the kinds of the organic nutriments used in the second process include acetic acid and 4 or less carbon alcohols, ketone, or alkylamines. Also, the preferred pH range of biological treatment is 5.5W7.
COPYRIGHT: (C)1980,JPO&Japio
JP15577778A 1978-12-19 1978-12-19 Treatment of cyanide-containing waste water from manufacturing process of organic compound Pending JPS5584598A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15577778A JPS5584598A (en) 1978-12-19 1978-12-19 Treatment of cyanide-containing waste water from manufacturing process of organic compound

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15577778A JPS5584598A (en) 1978-12-19 1978-12-19 Treatment of cyanide-containing waste water from manufacturing process of organic compound

Publications (1)

Publication Number Publication Date
JPS5584598A true JPS5584598A (en) 1980-06-25

Family

ID=15613171

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15577778A Pending JPS5584598A (en) 1978-12-19 1978-12-19 Treatment of cyanide-containing waste water from manufacturing process of organic compound

Country Status (1)

Country Link
JP (1) JPS5584598A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4737289A (en) * 1986-11-26 1988-04-12 Radian Corporation Process for wastewater treatment
US4790940A (en) * 1986-11-26 1988-12-13 Radian Corporation Process for wastewater treatment
JP2010235796A (en) * 2009-03-31 2010-10-21 Ecocycle Corp Cyanide detoxification agent and detoxification method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51128838A (en) * 1975-05-02 1976-11-10 Toyo Ink Mfg Co Ltd Treatment method of coke-oven plant waste water.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51128838A (en) * 1975-05-02 1976-11-10 Toyo Ink Mfg Co Ltd Treatment method of coke-oven plant waste water.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4737289A (en) * 1986-11-26 1988-04-12 Radian Corporation Process for wastewater treatment
US4790940A (en) * 1986-11-26 1988-12-13 Radian Corporation Process for wastewater treatment
JP2010235796A (en) * 2009-03-31 2010-10-21 Ecocycle Corp Cyanide detoxification agent and detoxification method

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