JPS553802A - Treatment of fluoride ion-containing waste water - Google Patents

Treatment of fluoride ion-containing waste water

Info

Publication number
JPS553802A
JPS553802A JP6980278A JP6980278A JPS553802A JP S553802 A JPS553802 A JP S553802A JP 6980278 A JP6980278 A JP 6980278A JP 6980278 A JP6980278 A JP 6980278A JP S553802 A JPS553802 A JP S553802A
Authority
JP
Japan
Prior art keywords
added
waste water
containing waste
water
ion
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
JP6980278A
Other languages
Japanese (ja)
Inventor
Yoshihiro Eto
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.)
Kurita Water Industries Ltd
Original Assignee
Kurita Water Industries 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 Kurita Water Industries Ltd filed Critical Kurita Water Industries Ltd
Priority to JP6980278A priority Critical patent/JPS553802A/en
Publication of JPS553802A publication Critical patent/JPS553802A/en
Pending legal-status Critical Current

Links

Landscapes

  • Removal Of Specific Substances (AREA)

Abstract

PURPOSE: To raise the sedimentary separability of calcium fluoride by the procedure in which calcium ion is added to a fluorine ion-containing waste water, then phosphoric acid ion is added to it, and further an aluminium salt is added to it, followed by solid-liquid separation.
CONSTITUTION: A fluorine ion-containing waste water is first added a water- soluble calcium compound, then added phosphoric acid or its salt with stirring without formed precipitates being removed, and further added a water-soluble aluminium compound. Then, the waste water so treated is regulated its pH to 6 to 8 by the addition of a pH regulator as needed and then subjected to a solid- liquid separation. Thus, this method can obtain treated water whose residual fluorine concentration is in the order of several ppm.
COPYRIGHT: (C)1980,JPO&Japio
JP6980278A 1978-06-12 1978-06-12 Treatment of fluoride ion-containing waste water Pending JPS553802A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6980278A JPS553802A (en) 1978-06-12 1978-06-12 Treatment of fluoride ion-containing waste water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6980278A JPS553802A (en) 1978-06-12 1978-06-12 Treatment of fluoride ion-containing waste water

Publications (1)

Publication Number Publication Date
JPS553802A true JPS553802A (en) 1980-01-11

Family

ID=13413231

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6980278A Pending JPS553802A (en) 1978-06-12 1978-06-12 Treatment of fluoride ion-containing waste water

Country Status (1)

Country Link
JP (1) JPS553802A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4567027A (en) * 1983-07-19 1986-01-28 Metallurgie Hoboken-Overpelt Process for defluorinating an acid sulphate solution
JP2006159176A (en) * 2004-11-15 2006-06-22 Matsushita Electric Ind Co Ltd Method and device for treating fluorine-containing water
JP2007190517A (en) * 2006-01-20 2007-08-02 Kurita Water Ind Ltd Treatment method of fluorine-containing wastewater
JP2007190516A (en) * 2006-01-20 2007-08-02 Kurita Water Ind Ltd Treatment method of fluorine-containing wastewater
JP2011000534A (en) * 2009-06-18 2011-01-06 Institute Of National Colleges Of Technology Japan Fluorine-containing wastewater treatment method
CN102921385A (en) * 2012-11-29 2013-02-13 四川师范大学 Process for preparing modified humic acid fluorine-removal adsorption material
WO2017017833A1 (en) * 2015-07-30 2017-02-02 Ｎｅｃファシリティーズ株式会社 Fluorine-containing wastewater treatment method and device therefor
CN115259475A (en) * 2022-08-23 2022-11-01 四川大学 Method for removing fluorine by rare earth auxiliary precipitation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4990273A (en) * 1972-12-28 1974-08-28
JPS50106860A (en) * 1974-01-31 1975-08-22
JPS5132060A (en) * 1974-09-13 1976-03-18 Showa Koji Kk FUTSUSOGANJUHAISUINOSHORIHOHO

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4990273A (en) * 1972-12-28 1974-08-28
JPS50106860A (en) * 1974-01-31 1975-08-22
JPS5132060A (en) * 1974-09-13 1976-03-18 Showa Koji Kk FUTSUSOGANJUHAISUINOSHORIHOHO

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4567027A (en) * 1983-07-19 1986-01-28 Metallurgie Hoboken-Overpelt Process for defluorinating an acid sulphate solution
JP2006159176A (en) * 2004-11-15 2006-06-22 Matsushita Electric Ind Co Ltd Method and device for treating fluorine-containing water
JP4591170B2 (en) * 2004-11-15 2010-12-01 パナソニック株式会社 Fluorine-containing water treatment equipment
JP2007190517A (en) * 2006-01-20 2007-08-02 Kurita Water Ind Ltd Treatment method of fluorine-containing wastewater
JP2007190516A (en) * 2006-01-20 2007-08-02 Kurita Water Ind Ltd Treatment method of fluorine-containing wastewater
JP4525602B2 (en) * 2006-01-20 2010-08-18 栗田工業株式会社 Treatment method for fluorine-containing wastewater
JP4525601B2 (en) * 2006-01-20 2010-08-18 栗田工業株式会社 Treatment method for fluorine-containing wastewater
JP2011000534A (en) * 2009-06-18 2011-01-06 Institute Of National Colleges Of Technology Japan Fluorine-containing wastewater treatment method
CN102921385A (en) * 2012-11-29 2013-02-13 四川师范大学 Process for preparing modified humic acid fluorine-removal adsorption material
WO2017017833A1 (en) * 2015-07-30 2017-02-02 Ｎｅｃファシリティーズ株式会社 Fluorine-containing wastewater treatment method and device therefor
JPWO2017017833A1 (en) * 2015-07-30 2018-05-10 Ｎｅｃファシリティーズ株式会社 Fluorine-containing wastewater treatment method and apparatus
CN115259475A (en) * 2022-08-23 2022-11-01 四川大学 Method for removing fluorine by rare earth auxiliary precipitation

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