KR970006193A - Treatment of fluorine-containing wastewater by sludge - Google Patents
Treatment of fluorine-containing wastewater by sludge Download PDFInfo
- Publication number
- KR970006193A KR970006193A KR1019950019975A KR19950019975A KR970006193A KR 970006193 A KR970006193 A KR 970006193A KR 1019950019975 A KR1019950019975 A KR 1019950019975A KR 19950019975 A KR19950019975 A KR 19950019975A KR 970006193 A KR970006193 A KR 970006193A
- Authority
- KR
- South Korea
- Prior art keywords
- sludge
- containing wastewater
- fluorine
- rare earth
- treating fluorine
- Prior art date
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
본 발명은 불소함유 폐수처리시 가용성 희토류 화합물을 이용하여 발생되는 슬러지(Sludge)를 재활용하므로서 불소제거 효율을 증대시키는 것에 관한 것으로, 불소함유 폐수를 처리함에 있어서, 가용성 회토류 화합물을 당량비 이상으로 투입하는 제1단계, 알카리를 이용하여 상기 투입된 희토류 이온을 수산화물로 침전시키는 제2단계, 응집제를 이용하여 상기 생성된 침전물을 응집시키는 제3단계, 상기 응집침강된 슬러지(Sludge)를 상기 제1단계에 순환사용하는 단계로 이루어짐을 특징으로 하는 슬러지(Sludge)를 이용한 불소함유 폐수의 처리방법에 관한 기술이다.The present invention relates to increasing the efficiency of fluorine removal by recycling sludge generated by using soluble rare earth compounds when treating fluorine-containing wastewater. In treating fluorine-containing wastewater, the soluble rare earth compound is added in an equivalent ratio or more. A first step of precipitating, a second step of precipitating the introduced rare earth ions with hydroxide, a third step of agglomerating the produced precipitate using a coagulant, and the first step of the coagulated precipitated sludge. The present invention relates to a method for treating fluorine-containing wastewater using sludge, which comprises a step of circulating and using water.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950019975A KR970006193A (en) | 1995-07-07 | 1995-07-07 | Treatment of fluorine-containing wastewater by sludge |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950019975A KR970006193A (en) | 1995-07-07 | 1995-07-07 | Treatment of fluorine-containing wastewater by sludge |
Publications (1)
Publication Number | Publication Date |
---|---|
KR970006193A true KR970006193A (en) | 1997-02-19 |
Family
ID=66526271
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950019975A KR970006193A (en) | 1995-07-07 | 1995-07-07 | Treatment of fluorine-containing wastewater by sludge |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR970006193A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100380740B1 (en) * | 1998-11-30 | 2003-08-19 | 주식회사 포스코 | Method for preparing fluorine ion remover in wastewater, fluorine ion remover prepared therefrom and method for removing fluorine ion using same |
-
1995
- 1995-07-07 KR KR1019950019975A patent/KR970006193A/en not_active Application Discontinuation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100380740B1 (en) * | 1998-11-30 | 2003-08-19 | 주식회사 포스코 | Method for preparing fluorine ion remover in wastewater, fluorine ion remover prepared therefrom and method for removing fluorine ion using same |
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Legal Events
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A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E601 | Decision to refuse application |