JPS62197192A - Treatment of fluorine in exhaust gas desulfurized drain - Google Patents

Treatment of fluorine in exhaust gas desulfurized drain

Info

Publication number
JPS62197192A
JPS62197192A JP3732786A JP3732786A JPS62197192A JP S62197192 A JPS62197192 A JP S62197192A JP 3732786 A JP3732786 A JP 3732786A JP 3732786 A JP3732786 A JP 3732786A JP S62197192 A JPS62197192 A JP S62197192A
Authority
JP
Japan
Prior art keywords
drain
exhaust gas
treatment
same
aggregated
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.)
Granted
Application number
JP3732786A
Other languages
Japanese (ja)
Other versions
JPH0510993B2 (en
Inventor
Reiya Shinguu
Shinichi Arao
Taketoshi Tsushima
Isamu Fujiwara
Yasuo Kimura
Original Assignee
Kansai Electric Power Co Inc:The
Mitsubishi Heavy Ind 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 Kansai Electric Power Co Inc:The, Mitsubishi Heavy Ind Ltd filed Critical Kansai Electric Power Co Inc:The
Priority to JP3732786A priority Critical patent/JPH0510993B2/ja
Publication of JPS62197192A publication Critical patent/JPS62197192A/en
Publication of JPH0510993B2 publication Critical patent/JPH0510993B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE: To easily set up F treatment stabilized operation conditions by adding a substance containing chlorine to raise up calcium index more than corresponding to the concentration of flourine allowable in treated drain.
CONSTITUTION: Exhaust gas desulfurized drain 21 containing F, SO4, heavy metal and the like is guided into rough neutralization process 1, pH being adjusted at 2W4 with slaked lime 31 and mineral acid 32, and SO4 in waste water is separated as CaSO4 and 2H2O. At the same time, metal hydroxide in aggregated sedimenting sludge 23 being sent back from aggregated sedimenting process 3 is solved again. Next, the same is led into pH adjusting process 2 and is adjusted at pH7W9 by adding slaked lime 31, and then F and AlF2 + in drain are reacted to turn the same into hard soluble CaF2. Then, by grasping calcium index in drain, the concentration of dissolved Ca is maintained and a stabilized F treating performance is provided.
COPYRIGHT: (C)1987,JPO&Japio
JP3732786A 1986-02-24 1986-02-24 Expired - Lifetime JPH0510993B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3732786A JPH0510993B2 (en) 1986-02-24 1986-02-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3732786A JPH0510993B2 (en) 1986-02-24 1986-02-24

Publications (2)

Publication Number Publication Date
JPS62197192A true JPS62197192A (en) 1987-08-31
JPH0510993B2 JPH0510993B2 (en) 1993-02-12

Family

ID=12494550

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3732786A Expired - Lifetime JPH0510993B2 (en) 1986-02-24 1986-02-24

Country Status (1)

Country Link
JP (1) JPH0510993B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6288217B1 (en) * 2016-11-17 2018-03-07 栗田工業株式会社 Method and apparatus for treating wastewater containing sulfuric acid, fluorine and heavy metal ions
CN109179799A (en) * 2018-08-31 2019-01-11 湖南中冶艾迪环保资源开发有限公司 A kind of processing method of high-concentration fluorine-containing waste water
WO2019131827A1 (en) * 2017-12-27 2019-07-04 三菱マテリアル株式会社 Wastewater treatment method
WO2019131832A1 (en) * 2017-12-27 2019-07-04 三菱マテリアル株式会社 Wastewater treatment method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6288217B1 (en) * 2016-11-17 2018-03-07 栗田工業株式会社 Method and apparatus for treating wastewater containing sulfuric acid, fluorine and heavy metal ions
WO2018092396A1 (en) * 2016-11-17 2018-05-24 栗田工業株式会社 Treatment method and treatment apparatus for waste water containing sulfuric acid, fluorine and heavy metal ions
WO2019131827A1 (en) * 2017-12-27 2019-07-04 三菱マテリアル株式会社 Wastewater treatment method
WO2019131832A1 (en) * 2017-12-27 2019-07-04 三菱マテリアル株式会社 Wastewater treatment method
CN109179799A (en) * 2018-08-31 2019-01-11 湖南中冶艾迪环保资源开发有限公司 A kind of processing method of high-concentration fluorine-containing waste water

Also Published As

Publication number Publication date
JPH0510993B2 (en) 1993-02-12

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