KR970001236A - How to remove colored and BOD substances from wastewater generated in coke manufacturing process - Google Patents

How to remove colored and BOD substances from wastewater generated in coke manufacturing process Download PDF

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Publication number
KR970001236A
KR970001236A KR1019950016292A KR19950016292A KR970001236A KR 970001236 A KR970001236 A KR 970001236A KR 1019950016292 A KR1019950016292 A KR 1019950016292A KR 19950016292 A KR19950016292 A KR 19950016292A KR 970001236 A KR970001236 A KR 970001236A
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KR
South Korea
Prior art keywords
colored
wastewater
bod
manufacturing process
coke manufacturing
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Application number
KR1019950016292A
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Korean (ko)
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KR0151988B1 (en
Inventor
김상식
Original Assignee
김종진
포항종합제철 주식회사
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Application filed by 김종진, 포항종합제철 주식회사 filed Critical 김종진
Priority to KR1019950016292A priority Critical patent/KR0151988B1/en
Publication of KR970001236A publication Critical patent/KR970001236A/en
Application granted granted Critical
Publication of KR0151988B1 publication Critical patent/KR0151988B1/en

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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
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/722—Oxidation by peroxides
    • 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
    • C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage

Abstract

본 발명은 폐수중 유색물질 및 BOD 물질을 제거하는 방법에 관한 것으로, 균등화 처리된 폐수를 미생물 처리공정에 유입시켜 유색물질과 BOD 성 물질을 제거하기 이전에 반응조에 촉매로서 확산제1철 또는 염화제2철을 단독 또는 복합으로 투입한 다음, 과산화수소와 반응시키는 자유라디칼 반응을 이용하여 폐수중의 유색물질을 1차적으로 산화시켜 제거하므로서, 코크스제조 공정에서 발생되는 폐수중 잔류유색 물질 및 BOD로 나타나는 유기성 물질을 미생물 처리공정에서 효과적으로 제거하는 방법을 제공하고자 하는데, 그 목적이 있다.The present invention relates to a method for removing colored materials and BOD substances in wastewater, and the fermentation or chloride as a catalyst in the reaction tank prior to removing the colored substances and BOD substances by flowing the equalized wastewater into the microbial treatment process Ferric iron is added either alone or in combination, and then freely reacts with hydrogen peroxide to oxidize and remove the colored material in the wastewater primarily, thereby remaining as colored residue and BOD in the wastewater generated in the coke manufacturing process. It is an object of the present invention to provide a method for effectively removing organic substances present in a microbial treatment process.

상기한 목적달성을 위한 본 발명은 코크스 제조공정에서 발생되는 폐수중 유색물질 및 BOD 물질을 제거하는 방법에 있어서, 상기 폐수의 유량 및 농도가 일정하게 공급되도록 조정하여 폐수를 균등화시킨 후, 균등화된 폐수를 반응조에 일정히 유입시키고 철 촉매로서 황산제1철 및 염화제2철을 단독 또는 복합으로 투입하여 pH를 2.5~6.0으로 조절하는 단계; 상기 철촉매와 반응하여 OH 라디칼을 형성시켜 유색물질을 산화시켜 제거하도록 pH가 2.5~6.0으로 조절된 폐수에 과산화수소를 200~400㎎/ℓ의 투입량 범위로 주입하는 단계; 및 상기 유색물질 산화시 발생되는 산소와 산기에 의해 공기로부터 용존되는 산소를 동시에 이용하여 상기 유색물질 산화단계에서 처리되지 않은 잔류 유색물질 및 폐수중에 함유된 BOD 물질을 제거하도록, pH:7.0~7.5, MLSS :2,000~3,500㎎/ℓ, DO :2~4㎎/ℓ, 및 반송비 : 0.5~1.2인 미생물 처리조에서 처리하는 단계를 포함하여 이루어지는 코크스 제조공정에서 발생되는 폐수중 유색물질 및 비오디 물질 제거방법을 제공함을 그 요지로 한다.The present invention for achieving the above object in the method for removing colored materials and BOD material in the waste water generated in the coke manufacturing process, after adjusting the flow rate and concentration of the waste water is uniformly supplied, and then equalized Adjusting the pH to 2.5 to 6.0 by introducing wastewater into the reactor constantly and adding ferrous sulfate and ferric chloride alone or in combination as iron catalysts; Injecting hydrogen peroxide into an amount of 200 to 400 mg / l into the wastewater adjusted to pH 2.5 to 6.0 to form OH radicals by reacting with the iron catalyst to oxidize and remove colored materials; And simultaneously using oxygen generated during oxidation of the colored material and oxygen dissolved in the air by an acid group to remove residual colored material and BOD material contained in the waste water, which are not treated in the colored material oxidation step, pH: 7.0˜7.5 Colored and non-audio materials in the wastewater generated in the coke manufacturing process, which are treated in a microbial treatment tank having a MLSS: 2,000-3,500 mg / l, DO: 2-4 mg / l, and a return ratio of 0.5-1.2. The main idea is to provide a removal method.

Description

코크스 제조공정에서 발생되는 폐수중 유색물질 및 비오디(BOD) 물질 제거 방법How to remove colored and BOD substances from wastewater generated in coke manufacturing process

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

Claims (1)

코크스 제조공정에서 발생되는 폐수중 유색물질 및 BOD 물질을 제거하는 방법에 있어서, 상기 폐수의 유량 및 농도가 일정하게 공급되도록 조정하여 폐수를 균등화시킨 후, 균등화된 폐수를 반응조에 일정히 유입시키고 철 촉매로서 황산제1철 및 염화제2철을 단독 또는 복합으로 투입하여 pH를 2.5~6.0으로 조절하는 단계; 상기 철촉매와 반응하여 OH 라디칼을 형성시켜 유색물질을 산화시켜 제거하도록 pH가 2.5~6.0으로 조절된 폐수에 과산화수소를 200~400㎎/ℓ의 투입량 범위로 주입하는 단계; 및 상기 유색물질 산화시 발생되는 산소와 산기에 의해 공기로부터 용존되는 산소를 동시에 이용하여 상기 유색물질 산화단계에서 처리되지 않은 잔류 유색물질 및 폐수중에 함유된 BOD 물질을 제거하도록, pH:7.0~7.5, MLSS :2,000~3,500㎎/ℓ, DO :2~4㎎/ℓ 및 반송비 : 0.5~1.2인 미생물 처리조에서 처리하는 단계를 포함하여 이루어짐을 특징으로 하는 코크스 제조공정에서 발생되는 폐수 중 유색물질 및 비오디 물질 제거방법.In the method for removing colored material and BOD material in the wastewater generated in the coke manufacturing process, after adjusting the flow rate and concentration of the wastewater to be uniformly supplied, the equalized wastewater is constantly introduced into the reactor and Ferrous sulfate and ferric chloride were added alone or in combination as a catalyst to adjust the pH to 2.5-6.0; Injecting hydrogen peroxide into an amount of 200 to 400 mg / l into the wastewater adjusted to pH 2.5 to 6.0 to form OH radicals by reacting with the iron catalyst to oxidize and remove colored materials; And simultaneously using oxygen generated during oxidation of the colored material and oxygen dissolved in the air by an acid group to remove residual colored material and BOD material contained in the waste water, which are not treated in the colored material oxidation step, pH: 7.0˜7.5 , MLSS: 2,000-3,500 mg / l, DO: 2-4 mg / l, and return ratio: 0.5-1.2 in the microbial treatment tank comprising the step of treating the colored material in the waste water generated in the coke manufacturing process And method for removing non-audio material. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950016292A 1995-06-19 1995-06-19 Method for treating waste water from cokes manufacturing process KR0151988B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950016292A KR0151988B1 (en) 1995-06-19 1995-06-19 Method for treating waste water from cokes manufacturing process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950016292A KR0151988B1 (en) 1995-06-19 1995-06-19 Method for treating waste water from cokes manufacturing process

Publications (2)

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KR970001236A true KR970001236A (en) 1997-01-21
KR0151988B1 KR0151988B1 (en) 1998-10-01

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100334053B1 (en) * 1999-11-05 2002-04-25 신원식 Wastewater Disposal agent And Process For Preparing thereof
KR100644518B1 (en) * 2005-11-01 2006-11-10 재단법인 포항산업과학연구원 The extraction method for halogenated organic compounds in waste water

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