KR950017755A - 시아나이드성 폐수의 탈독성화 조절하는 방법 - Google Patents

시아나이드성 폐수의 탈독성화 조절하는 방법 Download PDF

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Publication number
KR950017755A
KR950017755A KR1019940036159A KR19940036159A KR950017755A KR 950017755 A KR950017755 A KR 950017755A KR 1019940036159 A KR1019940036159 A KR 1019940036159A KR 19940036159 A KR19940036159 A KR 19940036159A KR 950017755 A KR950017755 A KR 950017755A
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KR
South Korea
Prior art keywords
value
range
glycolnitrile
cyanide
proportional
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KR1019940036159A
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English (en)
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KR0141425B1 (ko
Inventor
볼프 후베르트
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볼프강 베버,볼커 빈더
데구사 아크티엔게젤샤프트
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Publication of KR950017755A publication Critical patent/KR950017755A/ko
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Publication of KR0141425B1 publication Critical patent/KR0141425B1/ko

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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
    • 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
    • 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
    • C02F1/722—Oxidation by peroxides
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/16—Nitrogen compounds, e.g. ammonia
    • C02F2101/18—Cyanides
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S210/00—Liquid purification or separation
    • Y10S210/902—Materials removed
    • Y10S210/903—Nitrogenous
    • Y10S210/904—-CN containing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S210/00—Liquid purification or separation
    • Y10S210/902—Materials removed
    • Y10S210/911—Cumulative poison
    • Y10S210/912—Heavy metal

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

Abstract

본 발명은 글리콜니트릴을 형성시키기 위해 포름알데히드 원을 사용하고 글리콜니트릴을 과수소분해 시키기 위해 과산화수소 원을 사용함으로써, 시아나이드 및/또는 시아노 착물, 특히 아연 시아노 착물을 함유하는 수용액의 탈독성화를 조절하는 개선된 방법에 관한 것이다.
본 발명에 따라, 8.5내지 12범위의 pH치에서 포름알데히드 원을 가하는 동안, 산을 가함으로써 pH치를 일정하게 유지시키고, pH치가 더 이상 증가하지 않으면, 포름알데히드 원의 부가를 중단한다.

Description

시아나이드성 폐수의 탈독성화를 조절하는 방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (3)

  1. (i)포름알데히드 원을 8.5 내지 12의 pH범위에서 처리될 수용액에 연속적으로 또는 주기적으로 가하여, 유리시아나이드 및 방출 시아나이드를 글리콜니트릴로 전환시키는 단계 및 (ii)과산화수소 원을 8.5 내지 12의 pH범위에서 연속적으로 또는 주기적으로 가하여 글리콜니트릴을 과수소분해 시키는 단계[여기서, 산화-환원 포텐셜을 측정하고, pH치가 일정하게 유지되면서 산화-환원 포텐셜이 더 이상 증가하지 않으면, 부가를 중단한다]를 포함하여 시아나이드 및/또는 불안정한 중금속 시아노 착물, 특히 아연 시아노 착물을 함유하는 수용액, 특히 폐수의 탈독성화를 조절하는 방법에 있어서, 단계(i)이 수행되는 동안 산을 pH-조절량으로 부가함으로써 pH치를 실제적으로 일정하게 유지시키고, 결과적으로 pH치가 더 이상 증가하지 않으면, 포름알데히드의 부가를 중단함을 특징으로 하는 방법.
  2. 제1항에 있어서, 단계(i)및 단계(ii)에서, pH치를 9,5내지 10.5의 범위로 조절하고, 일정하게 유지시킴을 특징으로 하는 방법.
  3. 제1항 또는 제2항에 있어서, pH조절을 P-(비례), PI-(비례-적분) 또는 PID(비례-적분-미분)조절기를 사용하여 수행함을 특징으로 하는 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019940036159A 1993-12-24 1994-12-23 시안화물 함유 폐수의 해독을 조절하는 방법 KR0141425B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE?P4344598.5? 1993-12-24
DE4344598A DE4344598A1 (de) 1993-12-24 1993-12-24 Verfahren zur Steuerung der Entgiftung cyanidischer Abwässer
DE4344598 1993-12-24

Publications (2)

Publication Number Publication Date
KR950017755A true KR950017755A (ko) 1995-07-20
KR0141425B1 KR0141425B1 (ko) 1998-06-15

Family

ID=6506312

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940036159A KR0141425B1 (ko) 1993-12-24 1994-12-23 시안화물 함유 폐수의 해독을 조절하는 방법

Country Status (8)

Country Link
US (1) US5569386A (ko)
EP (1) EP0659693B1 (ko)
JP (1) JPH07204662A (ko)
KR (1) KR0141425B1 (ko)
DE (2) DE4344598A1 (ko)
ES (1) ES2133466T3 (ko)
NO (1) NO945012L (ko)
SG (1) SG48745A1 (ko)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6955766B2 (en) * 1999-11-24 2005-10-18 Degussa Ag Method for reducing harmful organisms in currents of water
DE19956348A1 (de) * 1999-11-24 2001-05-31 Degussa Verfahren zur Reduzierung von Schadorganismen in Wasserströmen
JP6161472B2 (ja) * 2013-09-03 2017-07-12 大阪ガスエンジニアリング株式会社 シアンを含む溶液の処理設備及び処理方法、並びに該方法によるシアンイオンを低減した溶液の製造方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3617582A (en) * 1970-03-02 1971-11-02 Du Pont Process for detoxifying cyanide waste waters
DE3534677C1 (de) * 1985-09-28 1987-04-30 Degussa Verfahren zur Reinigung von Industriegasen
DE4110056A1 (de) * 1991-03-27 1992-10-01 Degussa Verfahren zum entgiften von cyanhydrine und/oder nitrile enthaltenden waessrigen loesungen
DE4110055A1 (de) * 1991-03-27 1992-10-01 Degussa Verfahren zum entgiften cyanidischer waessriger loesungen
DE4127980A1 (de) * 1991-08-23 1993-02-25 Degussa Verfahren zum automatisch steuerbaren absenken des nitritgehalts nitrithaltiger waessriger loesungen auf werte unter 1 mg/l

Also Published As

Publication number Publication date
NO945012L (no) 1995-06-26
NO945012D0 (no) 1994-12-23
EP0659693B1 (de) 1999-01-13
DE59407652D1 (de) 1999-02-25
KR0141425B1 (ko) 1998-06-15
SG48745A1 (en) 1998-05-18
ES2133466T3 (es) 1999-09-16
US5569386A (en) 1996-10-29
EP0659693A2 (de) 1995-06-28
EP0659693A3 (de) 1995-11-02
JPH07204662A (ja) 1995-08-08
DE4344598A1 (de) 1995-06-29

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