JPS5520606A - Treating method for waste water - Google Patents

Treating method for waste water

Info

Publication number
JPS5520606A
JPS5520606A JP9206378A JP9206378A JPS5520606A JP S5520606 A JPS5520606 A JP S5520606A JP 9206378 A JP9206378 A JP 9206378A JP 9206378 A JP9206378 A JP 9206378A JP S5520606 A JPS5520606 A JP S5520606A
Authority
JP
Japan
Prior art keywords
waste water
oxidation
reaction
solution
added
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
JP9206378A
Other languages
Japanese (ja)
Inventor
Shoji Tomioka
Toshiaki Nakao
Nobuyoshi Mine
Toshio Horie
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.)
Furukawa Electric Co Ltd
Original Assignee
Furukawa 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 Furukawa Electric Co Ltd filed Critical Furukawa Electric Co Ltd
Priority to JP9206378A priority Critical patent/JPS5520606A/en
Priority to DE19792930442 priority patent/DE2930442A1/en
Priority to FR7919496A priority patent/FR2433484A1/en
Priority to US06/061,263 priority patent/US4268397A/en
Priority to GB7926180A priority patent/GB2027004B/en
Publication of JPS5520606A publication Critical patent/JPS5520606A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To make possible the waste water treatment to qjickly react freely from the secondary environmental pollution and excess charge of the hydrogen peroxide solution, by adjusting pH of the nitrites-including waste water to 2W5 adding hydrogen peroxide solution for treatment of the waste water, and by measuring the end point of reaction using the oxidation-reduction potentiometer equipped with the platinum electrode.
CONSTITUTION: The nitrites-including waste water is stirred and is added with H2O2 solution for treating at pH under 5; hereby, the reaction of the formula I quickly proceeds, and when pH lowers below 2, the reaction of the formula II starts parallelly to the formula I. By this reason, pH is adjusted to 2W5 for proceeding the oxidation reaction. As an example of this method, the nitrites-including waste water is introduced from the tank 1 into the chemical treating tank 3, is stirred by the stirrer 6, is added with sulfuric acid 17 to make pH 3W4; at this point, the water supply is stopped, and H2O2 solution 18 is added. Hereupon, the variation of the oxidation-reduction potential of the water is detected by the oxidation-reduction potentiometer 15 through the platinum oxidation-reduction potential electrode 5; the sudden change of the potential nearby the end point of the reaction is caught and the supply of the H2O2 solution is stopped; after that, NaOH solution 16 is added to neutralize the water to pH 7, and the neutral waste water is discharged.
COPYRIGHT: (C)1980,JPO&Japio
JP9206378A 1978-07-29 1978-07-29 Treating method for waste water Pending JPS5520606A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP9206378A JPS5520606A (en) 1978-07-29 1978-07-29 Treating method for waste water
DE19792930442 DE2930442A1 (en) 1978-07-29 1979-07-26 WASTEWATER TREATMENT METHOD
FR7919496A FR2433484A1 (en) 1978-07-29 1979-07-27 PROCESS FOR TREATING WASTEWATER
US06/061,263 US4268397A (en) 1978-07-29 1979-07-27 Method of treating waste water
GB7926180A GB2027004B (en) 1978-07-29 1979-07-27 Method of treating nitrate-containing waste water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9206378A JPS5520606A (en) 1978-07-29 1978-07-29 Treating method for waste water

Publications (1)

Publication Number Publication Date
JPS5520606A true JPS5520606A (en) 1980-02-14

Family

ID=14044011

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9206378A Pending JPS5520606A (en) 1978-07-29 1978-07-29 Treating method for waste water

Country Status (1)

Country Link
JP (1) JPS5520606A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0663567A (en) * 1991-08-23 1994-03-08 Degussa Ag Method for automatically controllable reduction of nitrite content of nitrite-containing aqueous solution
JPWO2006030936A1 (en) * 2004-09-13 2008-05-15 武田薬品工業株式会社 Method and apparatus for producing oxide compound

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0663567A (en) * 1991-08-23 1994-03-08 Degussa Ag Method for automatically controllable reduction of nitrite content of nitrite-containing aqueous solution
JPWO2006030936A1 (en) * 2004-09-13 2008-05-15 武田薬品工業株式会社 Method and apparatus for producing oxide compound
JP5173191B2 (en) * 2004-09-13 2013-03-27 武田薬品工業株式会社 Method and apparatus for producing oxide compound

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