JPS5522326A - Treatment of fluorine containing waste solution - Google Patents

Treatment of fluorine containing waste solution

Info

Publication number
JPS5522326A
JPS5522326A JP9539378A JP9539378A JPS5522326A JP S5522326 A JPS5522326 A JP S5522326A JP 9539378 A JP9539378 A JP 9539378A JP 9539378 A JP9539378 A JP 9539378A JP S5522326 A JPS5522326 A JP S5522326A
Authority
JP
Japan
Prior art keywords
tank
containing waste
liquid
treatment
fluorine
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
JP9539378A
Other languages
Japanese (ja)
Inventor
Sakue Shinoda
Yoshiichi Kimura
Yoshinori Oishi
Toshio Kera
Hiroshi Sato
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP9539378A priority Critical patent/JPS5522326A/en
Publication of JPS5522326A publication Critical patent/JPS5522326A/en
Pending legal-status Critical Current

Links

Landscapes

  • Removal Of Specific Substances (AREA)

Abstract

PURPOSE: Fluorine-containing waste liquid is adjusted in pH so that basic calcium salt is added without fail, thereby to perform ensured deflurination, together with chromic acid containing waste treatment and to eliminate special expensive pretreatment equipment.
CONSTITUTION: For defluorination treatment, both chromic acid and fluorine containing waste liquids are mixed and neutralizied by adjusting pH so that neutralization is made possible by adding basic calcium salt solution. For example, pickling waste solution is charged from the tank 3 by pump 16 to the waste liquid cleaning tank 2 which is provided at liquid discharge route with a pump controller 15 with contact-point pH meter. The controller 15 continuously measures pH of liquid of loquid from the tank 2. If pH is higher than a specified value, the pH of the liquid charge from the tank 2 is controlled by the tank 16.
COPYRIGHT: (C)1980,JPO&Japio
JP9539378A 1978-08-07 1978-08-07 Treatment of fluorine containing waste solution Pending JPS5522326A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9539378A JPS5522326A (en) 1978-08-07 1978-08-07 Treatment of fluorine containing waste solution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9539378A JPS5522326A (en) 1978-08-07 1978-08-07 Treatment of fluorine containing waste solution

Publications (1)

Publication Number Publication Date
JPS5522326A true JPS5522326A (en) 1980-02-18

Family

ID=14136397

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9539378A Pending JPS5522326A (en) 1978-08-07 1978-08-07 Treatment of fluorine containing waste solution

Country Status (1)

Country Link
JP (1) JPS5522326A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6238801U (en) * 1985-08-26 1987-03-07
JPH074543A (en) * 1992-12-21 1995-01-10 Westinghouse Air Brake Co Pressure adjusting valve
CN108217894A (en) * 2017-12-13 2018-06-29 赛恩斯环保股份有限公司 A kind of preparation method and application of efficient defluorinate ferro-aluminum complex reagent

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6238801U (en) * 1985-08-26 1987-03-07
JPH0518241Y2 (en) * 1985-08-26 1993-05-14
JPH074543A (en) * 1992-12-21 1995-01-10 Westinghouse Air Brake Co Pressure adjusting valve
CN108217894A (en) * 2017-12-13 2018-06-29 赛恩斯环保股份有限公司 A kind of preparation method and application of efficient defluorinate ferro-aluminum complex reagent

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