ES2133466T3 - Procedimiento para controlar la descontaminacion de aguas residuales que contienen cianuros. - Google Patents

Procedimiento para controlar la descontaminacion de aguas residuales que contienen cianuros.

Info

Publication number
ES2133466T3
ES2133466T3 ES94118376T ES94118376T ES2133466T3 ES 2133466 T3 ES2133466 T3 ES 2133466T3 ES 94118376 T ES94118376 T ES 94118376T ES 94118376 T ES94118376 T ES 94118376T ES 2133466 T3 ES2133466 T3 ES 2133466T3
Authority
ES
Spain
Prior art keywords
formaldehyde
control
source
value
procedure
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
ES94118376T
Other languages
English (en)
Inventor
Hubert Wolf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Degussa Huels AG
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.)
Filing date
Publication date
Application filed by Degussa GmbH, Degussa Huels AG filed Critical Degussa GmbH
Application granted granted Critical
Publication of ES2133466T3 publication Critical patent/ES2133466T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • 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

LA INVENCION SE REFIERE A UN PROCEDIMIENTO MEJORADO PARA EL CONTROL DE LA DESINTOXICACION DE SOLUCIONES ACUOSAS CONTENIENDO CIANURO Y/O COMPLEJO CIANO, EN PARTICULAR COMPLEJO CIANO DE ZINC, BAJO LA UTILIZACION DE UNA FUENTE PARA EL FORMALDEHIDO POR MOTIVOS DE FORMACION DE GLICONITRILO Y UNA FUENTE PARA PEROXIDO DE HIDROGENO POR MOTIVOS DE PERHIDROLISIS DEL GLICONITRILO. DE ACUERDO CON LA INVENCION DURANTE LA ADICION DE LA FUENTE PARA EL FORMALDEHIDO EN UN VALOR DE PH EN LA ZONA DESDE 8,5 HASTA 12 DE ESTE VALOR DE PH SE MANTIENE CONSTANTE MEDIANTE LA ADICION DE UN ACIDO Y ASIMISMO SE TERMINA LA FUENTE PARA EL FORMALDEHIDO, CUANDO EL VALOR DE PH NO SE ELEVA MAS.
ES94118376T 1993-12-24 1994-11-23 Procedimiento para controlar la descontaminacion de aguas residuales que contienen cianuros. Expired - Lifetime ES2133466T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4344598A DE4344598A1 (de) 1993-12-24 1993-12-24 Verfahren zur Steuerung der Entgiftung cyanidischer Abwässer

Publications (1)

Publication Number Publication Date
ES2133466T3 true ES2133466T3 (es) 1999-09-16

Family

ID=6506312

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94118376T Expired - Lifetime ES2133466T3 (es) 1993-12-24 1994-11-23 Procedimiento para controlar la descontaminacion de aguas residuales que contienen cianuros.

Country Status (8)

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

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
EP0659693A3 (de) 1995-11-02
KR0141425B1 (ko) 1998-06-15
NO945012L (no) 1995-06-26
DE59407652D1 (de) 1999-02-25
KR950017755A (ko) 1995-07-20
EP0659693A2 (de) 1995-06-28
EP0659693B1 (de) 1999-01-13
US5569386A (en) 1996-10-29
SG48745A1 (en) 1998-05-18
DE4344598A1 (de) 1995-06-29
JPH07204662A (ja) 1995-08-08
NO945012D0 (no) 1994-12-23

Similar Documents

Publication Publication Date Title
HUT71048A (en) Aqueous disinfecting composition, process for preparation of it and use the same
ZA992230B (en) Aqueous disinfecting agent containing performic acid and peracetic acid, process for production thereof and use thereof.
CA2291519A1 (en) Preventing contamination of an aquatic environment with organisms from another locality
EP0351772A3 (en) Stabilized hydrogen peroxide
ZA971583B (en) Treatment of contact lenses with aqueous solution including phosphonic compounds.
ATE164368T1 (de) Methoden zur erzeugung von restdesinfektionsmittel während der ozonisierung von wasser
DE59509881D1 (de) Thixotrope wässrige Pflanzenschutzmittel-Suspension
ES2100533T3 (es) Concentrados de agente de limpieza, alcalinos, bombeables.
PT1317306E (pt) Dispositivo de electrotransporte transdermico e metodo para o seu fabrico
BR9206151A (pt) Composições alvejantes contendo peróxido de hidrogênio, estáveis
GB2201595B (en) Microbiological control agent
DE3260233D1 (en) Process for the chemical treatment and disinfection of waters and aqueous systems
AU577558B2 (en) Peracetic and perpropionic acid disinfectants
ES2133466T3 (es) Procedimiento para controlar la descontaminacion de aguas residuales que contienen cianuros.
DE69014298D1 (de) Stabilisierung von wasserstoffperoxydlösungen.
ES2075540T3 (es) Procedimiento para la depilacion de pieles de animales.
DE59702666D1 (de) Vorrichtung zur katalytischen zersetzung von wasserstoffperoxyd
IL110566A (en) Stable aqueous solution of hybrid alpha-interferon
ES2048291T3 (es) Formulacion de yodo compatible con radiacion.
ES2052395T3 (es) Procedimiento para descontaminar soluciones acuosas que contienen cianhidrinas y/o nitrilos.
ES8704738A1 (es) Procedimiento para estabilizar y-0 aumentar el efecto microbicida de soluciones acuosas de h2o2
FR2735372B1 (fr) Nouvelles utilisations d'un courant de dioxyde de carbone supercritique a titre d'agent antiviral
ES2099953T3 (es) Procedimiento para la obtencion de tensioactivos de color claro con un contenido reducido en peroxido.
AR009944A1 (es) Metodo de tratamiento de agua
Yoshimura Treatment of Waste Water From Aluminum Surface Treatment by Hydrogen Peroxide and Ozone

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 659693

Country of ref document: ES