KR970006193A - Treatment of fluorine-containing wastewater by sludge - Google Patents

Treatment of fluorine-containing wastewater by sludge Download PDF

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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
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KR
South Korea
Prior art keywords
sludge
containing wastewater
fluorine
rare earth
treating fluorine
Prior art date
Application number
KR1019950019975A
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Korean (ko)
Inventor
홍영호
양성훈
우상모
Original Assignee
이정성
주식회사 Lg 금속
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.)
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Publication date
Application filed by 이정성, 주식회사 Lg 금속 filed Critical 이정성
Priority to KR1019950019975A priority Critical patent/KR970006193A/en
Publication of KR970006193A publication Critical patent/KR970006193A/en

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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

슬러지(Sludge)를 이용한 불소함유 폐수의 처리방법Treatment of fluorine-containing wastewater by sludge

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims (2)

불소함유 폐수를 처리함에 있어서, 가용성 희토류 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 처리방법.In treating fluorine-containing waste water, the first step of adding a soluble rare earth compound in an equivalent ratio or more; A second step of precipitating the introduced rare earth ions to hydroxide using alkali; A third step of flocculating the generated precipitate using a flocculant; And circulating the flocculated sludge (Sludge) in the first step. 제1항에 있어서, 슬러지 투입시의 폐수의 PH가 1~12인 것을 특징으로 하는 불소함유 폐수의 처리방법.The method for treating fluorine-containing wastewater according to claim 1, wherein the pH of the wastewater at the time of sludge input is 1 to 12. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950019975A 1995-07-07 1995-07-07 Treatment of fluorine-containing wastewater by sludge KR970006193A (en)

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

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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

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KR (1) KR970006193A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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