JPS55119485A - Treating method for waste water containing cyanide and cod component - Google Patents

Treating method for waste water containing cyanide and cod component

Info

Publication number
JPS55119485A
JPS55119485A JP2509779A JP2509779A JPS55119485A JP S55119485 A JPS55119485 A JP S55119485A JP 2509779 A JP2509779 A JP 2509779A JP 2509779 A JP2509779 A JP 2509779A JP S55119485 A JPS55119485 A JP S55119485A
Authority
JP
Japan
Prior art keywords
waste water
cod components
cyanide
water containing
maintaining
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
JP2509779A
Other languages
Japanese (ja)
Inventor
Tetsuo Tanaka
Akira Nogami
Toshifumi Nishi
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 JP2509779A priority Critical patent/JPS55119485A/en
Publication of JPS55119485A publication Critical patent/JPS55119485A/en
Pending legal-status Critical Current

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  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)

Abstract

PURPOSE: To decrease COD components and to make cyanide harmless, by heating and concentrating the waste water containing acetontrile.cyanide compound from the bottom of water separation tower and COD components maintaining at a specific pH value and treating condensed liquid at a high temperature under limited condition after condensing distilled vapor.
CONSTITUTION: Waste water containing acetonitrile.cyanide compound from the bottom of water separation tower and COD components, is heated and concentrated maintaining pH at 9 or more, at the time of refining unsaturated nitrile from ammoxidation reaction gas of olefin. Next, distilled vapor is condensed and a high temperature treatment is carried out at a temperature of 120°C or more maintaining pH of condensed liquid at 9 or more, staying sufficient time to make contained cyanide harmless. Remaining liquid carried out the above-mentioned heating concentration, is contained a high concentration COD components and in case of being concentration degree ten or more, the above liquid is able to use as fuel because of spontaneous combustion. Accordingly, it is made possible to make harmless by incineration treatment.
COPYRIGHT: (C)1980,JPO&Japio
JP2509779A 1979-03-06 1979-03-06 Treating method for waste water containing cyanide and cod component Pending JPS55119485A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2509779A JPS55119485A (en) 1979-03-06 1979-03-06 Treating method for waste water containing cyanide and cod component

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2509779A JPS55119485A (en) 1979-03-06 1979-03-06 Treating method for waste water containing cyanide and cod component

Publications (1)

Publication Number Publication Date
JPS55119485A true JPS55119485A (en) 1980-09-13

Family

ID=12156417

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2509779A Pending JPS55119485A (en) 1979-03-06 1979-03-06 Treating method for waste water containing cyanide and cod component

Country Status (1)

Country Link
JP (1) JPS55119485A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01123686A (en) * 1987-11-10 1989-05-16 Mitsubishi Cable Ind Ltd Cyan waste liquid treatment device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4912972A (en) * 1972-05-01 1974-02-04
JPS5346383A (en) * 1976-10-07 1978-04-25 Uniroyal Inc Apparatus for inserting bladder of tire vulcanizing mold into green tire carcass

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4912972A (en) * 1972-05-01 1974-02-04
JPS5346383A (en) * 1976-10-07 1978-04-25 Uniroyal Inc Apparatus for inserting bladder of tire vulcanizing mold into green tire carcass

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01123686A (en) * 1987-11-10 1989-05-16 Mitsubishi Cable Ind Ltd Cyan waste liquid treatment device

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