KR830010001A - Removal of fluorine and phosphate recovery from gypsum wastewater from phosphate fertilizer production - Google Patents

Removal of fluorine and phosphate recovery from gypsum wastewater from phosphate fertilizer production

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Publication number
KR830010001A
KR830010001A KR1019820001804A KR820001804A KR830010001A KR 830010001 A KR830010001 A KR 830010001A KR 1019820001804 A KR1019820001804 A KR 1019820001804A KR 820001804 A KR820001804 A KR 820001804A KR 830010001 A KR830010001 A KR 830010001A
Authority
KR
South Korea
Prior art keywords
phosphate
fertilizer production
fluorine
removal
adjusted
Prior art date
Application number
KR1019820001804A
Other languages
Korean (ko)
Other versions
KR840000695B1 (en
Inventor
진병림
장정효
이장원
Original Assignee
이준용
대림엔지니어링 주식회사
진종채
진해화학 주식회사
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 이준용, 대림엔지니어링 주식회사, 진종채, 진해화학 주식회사 filed Critical 이준용
Priority to KR820001804A priority Critical patent/KR840000695B1/en
Publication of KR830010001A publication Critical patent/KR830010001A/en
Application granted granted Critical
Publication of KR840000695B1 publication Critical patent/KR840000695B1/en

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  • Removal Of Specific Substances (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

내용 없음No content

Description

인산비료 생산과정에서 유출되는 석고폐수로부터의 불소분 제거 및 인분 회수 방법Removal of fluorine and phosphorus from gypsum wastewater discharged from phosphate fertilizer production

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

제1도는 본 발명 방법의 실시 공정을 개략적으로 도시한 블럭도.1 is a block diagram schematically illustrating an implementation process of the method of the present invention.

Claims (4)

석고 폐수를 석회석과 반응시켜 pH 3.5-4.0에서 고분자 응집제 존재하에 불화칼슘 침전을 분리하는 제1공정과, 이 1차 공정에서 분리된 상징액에 소석회를 첨가하여 pH10-12에서 고분자 응집제 존재하에 오산화인을 회수하는 제2공정 및 이 제2공정에서 분리된 상징액을 농황산으로 중화시키는제3공정의 결합으로 이루어진 것이특징인 인산 비료 생산과정에서 유출되는 석고 폐수로부터의 불소분 제거 및 인분 회수 방법.Reaction of gypsum wastewater with limestone to separate calcium fluoride precipitation in the presence of a polymer flocculant at pH 3.5-4.0, and addition of calcined lime to the supernatant separated in this first step, resulting in phosphorus pentoxide in the presence of A method of removing fluorine and phosphate from the gypsum wastewater discharged from the phosphate fertilizer production process, characterized in that the combination of a second step of recovering and a third step of neutralizing the supernatant separated from the second step with concentrated sulfuric acid. 특허 청구의 범위 제1항에 있어서, 고분자 응집제가 음이온성 폴리아크릴아미드계 수지 수용액인 방법.The method according to claim 1, wherein the polymer flocculant is an anionic polyacrylamide resin aqueous solution. 특허 청구의 범위 제2항에 있어서, 폴리아크릴아미드계 수지농도가 0.03중량%인 방법.The method according to claim 2, wherein the polyacrylamide resin concentration is 0.03% by weight. 특허 청구의 범위 제1항에 있어서, 제1공정의 초기에는 석회석 분말로 pH3.0으로 조정하고 다음에는 10중량%의 석회석 용액으로 pH3.8로 조정하는 2단계로 pH를 조정하는 방법.The method according to claim 1, wherein the pH is adjusted in two steps, initially adjusted to pH3.0 with limestone powder and then adjusted to pH3.8 with 10% by weight limestone solution. ※ 참고사항 : 최초출원내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR820001804A 1982-04-23 1982-04-23 The method of the exclusion of the exclusion of fluoride and the recovery of p2 o5 KR840000695B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR820001804A KR840000695B1 (en) 1982-04-23 1982-04-23 The method of the exclusion of the exclusion of fluoride and the recovery of p2 o5

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR820001804A KR840000695B1 (en) 1982-04-23 1982-04-23 The method of the exclusion of the exclusion of fluoride and the recovery of p2 o5

Publications (2)

Publication Number Publication Date
KR830010001A true KR830010001A (en) 1983-12-24
KR840000695B1 KR840000695B1 (en) 1984-05-21

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ID=19224507

Family Applications (1)

Application Number Title Priority Date Filing Date
KR820001804A KR840000695B1 (en) 1982-04-23 1982-04-23 The method of the exclusion of the exclusion of fluoride and the recovery of p2 o5

Country Status (1)

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KR (1) KR840000695B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030003473A (en) * 2001-07-02 2003-01-10 황석훈 The System and Method of Purifying Fluoric Wastewater
KR100440539B1 (en) * 2001-10-29 2004-07-21 엘지니꼬동제련 주식회사 method recovery of valuable material from waste gypsum

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030003473A (en) * 2001-07-02 2003-01-10 황석훈 The System and Method of Purifying Fluoric Wastewater
KR100440539B1 (en) * 2001-10-29 2004-07-21 엘지니꼬동제련 주식회사 method recovery of valuable material from waste gypsum

Also Published As

Publication number Publication date
KR840000695B1 (en) 1984-05-21

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