KR970059104A - Treatment method for wastewater containing soluble dissolved oil and fluorine - Google Patents

Treatment method for wastewater containing soluble dissolved oil and fluorine Download PDF

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Publication number
KR970059104A
KR970059104A KR1019970019827A KR19970019827A KR970059104A KR 970059104 A KR970059104 A KR 970059104A KR 1019970019827 A KR1019970019827 A KR 1019970019827A KR 19970019827 A KR19970019827 A KR 19970019827A KR 970059104 A KR970059104 A KR 970059104A
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South Korea
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fluorine
oil
soluble dissolved
water
wastewater containing
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KR1019970019827A
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Korean (ko)
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KR100211127B1 (en
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고종호
지해성
유재성
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백운화
두산인재기술개발원 연구조합
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56—Macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

본 발명은 수용성 용존오일과 불소를 함유한 폐수의 처리방법에 관한 것으로, 좀 더 상세하게는 수용성 용존오일과 불소 함유 폐수로부터 수용성 용존오일과 불소이온을 제거하는 방법에 있어서, 알루미늄화합물 및 칼슘화합물을 순차적으로 첨가하여 폐수중의 오일과 불소이온농도를 각각 15㎎/ℓ 및 7㎎/ℓ 이하로 저감시키는 반응공정과 음이온 고분자폴리머를 이용한 플럭형성공정으로 이루어진 1차 처리공정; 상기 1차 처리된 폐수중에 수산화나트륨 및 알루미늄화합물을 순차적으로 첨가하여 오일 및 불소이온농도를 각각 5㎎/ℓ 및 2㎎/ℓ 이하로 저감시키는 반응공정과 음이온 고분자폴리머를 이용한 플럭형성공정으로 이루어진 2차 처리공정; 및 무기산으로 조절되는 pH 4.5±0.5의 반응조에 분말활성탄과 산화제를 동시에 투입하여 오일 및 불소화합물농도를 각각 1㎎/ℓ 및 1.5mg/l 이하로 제거하는 반응공정과 음이온 고분자폴리머 반응공정으로 이루어진 3차 처리공정으로 이루어지는 수용성 용존오일과 불소를 함유한 폐수의 처리방법에 관한 것이다. 본 발명의 방법은 알루미늄캔 제조공정에서 발생하는 수용성 용존오일 및 불소이온과 그 착염으로 안정화된 복합 폐수를 효과적으로 처리할 수 있다.The present invention relates to a method for treating wastewater containing water-soluble dissolved oils and fluorine, and more particularly, to a method for removing water-soluble dissolved oils and fluorine ions from water-soluble dissolved oils and fluorine-containing waste water. Adding a sequential step to reduce the oil and fluorine ion concentrations in the wastewater to 15 mg / L and 7 mg / L or less, respectively, and a primary treatment process comprising a floc forming process using an anionic polymer; Reaction process for reducing oil and fluorine ion concentration to 5 mg / l and 2 mg / l or less by sequentially adding sodium hydroxide and aluminum compound to the first treated wastewater and floc forming process using anionic polymer polymer Secondary treatment process; And a process for removing oil and fluorine compounds to 1 mg / l and 1.5 mg / l or less by simultaneously adding powdered activated carbon and an oxidant to a reaction tank of pH 4.5 ± 0.5 controlled by an inorganic acid, and an anionic polymer polymer reaction process. The present invention relates to a method for treating wastewater containing water-soluble dissolved oils and fluorine formed by a third treatment step. The method of the present invention can effectively treat the composite wastewater stabilized by water-soluble dissolved oil and fluorine ion and its complex salt generated in the aluminum can manufacturing process.

Description

수용성 용존오일과 불소를 함유한 폐수의 처리방법Treatment method for wastewater containing soluble dissolved oil and fluorine

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

Claims (8)

수용성 용존오일과 불소 함유 폐수로부터 수용성 용존오일과 불소이온을 제거하는 방법에 있어서,알루미In the method for removing the water-soluble dissolved oil and fluorine ions from the water-soluble dissolved oil and fluorine-containing waste water, 늄화합물 및 칼슘화합물을 순차적으로 첨가하여 폐수중의 오일과 불소이온농도를 각각 15㎎/ℓ 및 7㎎/ℓ 이하로 저감시키는 반응공정과 음이온 고분자폴리머를 이용한 플럭형성공정으로 이루어진 1차 처리공정;상기 1차The primary treatment process consists of a reaction process to reduce the oil and fluorine ion concentrations in the wastewater to 15 mg / l and 7 mg / l or less by sequentially adding a nium compound and a calcium compound, and a floc forming process using anionic polymer polymer. The primary 처리된 폐수중에 수산화나트륨 및 알루미늄화합물을 순차적으로 첨가하여 오일 및 불소이온농도를 각각 5㎎/ℓ 및 2㎎/ℓ 이하로 저감시키는 반응공정과 음이온 고분자폴리머를 이용한 플럭형성공정으로 이루어진 2차 처리Secondary treatment consisting of a reaction process to reduce the oil and fluorine ion concentration to 5 mg / l and 2 mg / l or less by adding sodium hydroxide and aluminum compounds sequentially to the treated wastewater and a flocculation process using anionic polymer 공정; 및 무기산으로 조절되는 pH 4.5±0.5의 반응조에 분말활성탄과 산화제를 동시에 투입하여 오일 및 불소화합물농도를 각각 1㎎/ℓ 및 1.5mg/ℓ 이하로 제거하는 반응공정과 음이온 고분자폴리머 반응공정으로 이루어진 3차 처리공정으로 이루어지는 것을 특징으로 하는 수용성 용존오일과 불소를 함유한 폐수의 처리방법.fair; And a process for removing oil and fluorine compounds to 1 mg / l and 1.5 mg / l or less by simultaneously adding powdered activated carbon and an oxidant to a reaction tank of pH 4.5 ± 0.5 controlled by an inorganic acid, and an anionic polymer polymer reaction process. A method for treating wastewater containing water-soluble dissolved oils and fluorine, comprising a third treatment step. 제 1항에 있어서, 상기 알루미늄화합물이 Al2(SO4)3이고, 상기 칼슘화합물이 Ca(OH)2임을 특징으로 하는 수용성 용존오일과 불소를 함유한 폐수의 처리방법.The method of treating wastewater containing water-soluble dissolved oil and fluorine according to claim 1, wherein the aluminum compound is Al 2 (SO 4 ) 3 and the calcium compound is Ca (OH) 2 . 제 1항에 있어서, 상기 1차 처리공정에서 알루미늄화합물 및 칼슘화합물의 첨가량이 각각 pH 3±0.5 및 pH 8.0±0.5의 범위를 유지함을 특징으로 하는 수용성 용존오일과 불소를 함유한 폐수의 처리방법.The method of treating wastewater containing water-soluble dissolved oil and fluorine according to claim 1, wherein the amount of addition of aluminum compound and calcium compound in the primary treatment step is in the range of pH 3 ± 0.5 and pH 8.0 ± 0.5, respectively. . 제 1항에 있어서, 상기 2차 처리공정에서 수산화나트륨 및 알루미늄화합물의 첨가량이 각각 pH 10±1 및 5.5±0.5의 범위를 유지함을 특징으로 하는 수용성 용존오일과 불소를 함유한 폐수의 처리방법.The method of treating wastewater containing water-soluble dissolved oil and fluorine according to claim 1, wherein the amount of sodium hydroxide and aluminum compound added in the secondary treatment is maintained at pH 10 ± 1 and 5.5 ± 0.5, respectively. 제 1항에 있어서, 상기 분말활성탄의 입자크기가 250메쉬이상이고, 투입량은 폐수에 대하여 0.8∼1.9g/ℓ임을 특징으로 하는 수용성 용존오일과 불소를 함유한 폐수의 처리방법.The method of treating wastewater containing soluble dissolved oil and fluorine according to claim 1, wherein the particle size of the powdered activated carbon is 250 mesh or more, and the amount of the activated activated carbon is 0.8 to 1.9 g / l based on the wastewater. 제 1항에 있어서, 상기 산화제가 NaOCl, CaOCl2또는 H202임을 특징으로 하는 수용성 용존오일과 불소를 함유한 폐수의 처리방법.The method of claim 1 wherein the oxidant is NaOCl, CaOCl 2 or H 2 O 2 . 제 1항에 있어서, 상기 산화환원반응조건이 400±100mV임을 특징으로 하는 수용성 용존오일과 불소를 함유한 폐수의 처리방법.The method of treating wastewater containing soluble dissolved oil and fluorine according to claim 1, wherein the redox reaction condition is 400 ± 100 mV. 제 1항에 있어서, 상기 3단계에서 발생된 응집슬러리는 1차 및 2차 처리공정으로 각각 2∼3 : 7∼8의 중량비로 반송되고, 1차 및 2차에서 고액분리된 후 슬러지로 계외로 탈수후 폐기되는 것을 특징으로 하는 수용성 용존오일과 불소를 함유한 폐수의 처리방법.The method of claim 1, wherein the flocculation sludge produced in the third step is conveyed in a weight ratio of 2 to 3: 7 to 8, respectively, in the first and second treatment process, and after the solid-liquid separation in the first and second, A method for treating wastewater containing water-soluble dissolved oil and fluorine, which is disposed of after dehydration to the outside. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019970019827A 1997-05-21 1997-05-21 Method for treating waste water containing water-solublr oil and fluoride ion KR100211127B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100841839B1 (en) * 2005-05-30 2008-06-27 밍후이 랴오 Method for removing fluorine from a fluorine-containing wastewater

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100841839B1 (en) * 2005-05-30 2008-06-27 밍후이 랴오 Method for removing fluorine from a fluorine-containing wastewater

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