ES2076133T3 - Procedimiento y aparato para controlar microorganismos. - Google Patents

Procedimiento y aparato para controlar microorganismos.

Info

Publication number
ES2076133T3
ES2076133T3 ES93915606T ES93915606T ES2076133T3 ES 2076133 T3 ES2076133 T3 ES 2076133T3 ES 93915606 T ES93915606 T ES 93915606T ES 93915606 T ES93915606 T ES 93915606T ES 2076133 T3 ES2076133 T3 ES 2076133T3
Authority
ES
Spain
Prior art keywords
side stream
water
oxidant
added
halide ions
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
ES93915606T
Other languages
English (en)
Other versions
ES2076133T1 (es
Inventor
Ronald J Christensen
Gary L Bakep
Lyle H Steimel
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.)
Unilever NV
Original Assignee
Unilever NV
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 Unilever NV filed Critical Unilever NV
Publication of ES2076133T1 publication Critical patent/ES2076133T1/es
Application granted granted Critical
Publication of ES2076133T3 publication Critical patent/ES2076133T3/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
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • 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
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
    • C02F1/4674—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation with halogen or compound of halogens, e.g. chlorine, bromine
    • 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
    • C02F1/72—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
    • 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
    • C02F1/766—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens by means of halogens other than chlorine or of halogenated compounds containing halogen other than chlorine
    • 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
    • C02F2103/02—Non-contaminated water, e.g. for industrial water supply
    • C02F2103/023—Water in cooling circuits
    • 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
    • C02F2103/26—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof
    • C02F2103/28—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof from the paper or cellulose industry
    • 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
    • C02F2103/42—Nature of the water, waste water, sewage or sludge to be treated from bathing facilities, e.g. swimming pools
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/04—Flow arrangements
    • C02F2301/043—Treatment of partial or bypass streams
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/04—Flow arrangements
    • C02F2301/046—Recirculation with an external loop

Abstract

AGUA EN UN SISTEMA DE AGUA DE PROCESO, COMO POR EJEMPLO UNA TORRE DE REFRIGERACION O UNA PLANTA DE PROCESAMIENTO DE PAPEL Y PASTA, SE TRATA PARA DESTRUIR MICROORGANISMOS BIOLOGICOS MEDIANTE LA DESVIACION DE PARTE DEL AGUA QUE FLUYE A TRAVES DEL SISTEMA HACIA UNA CORRIENTE LATERAL. EN LA CORRIENTE LATERAL, SE AÑADEN PRODUCTOS QUIMICOS COMO POR EJEMPLO IONES HALURO O CLORITO DE SODIO. EL AGUA LUEGO SE PASA A TRAVES DE UNA UNIDAD DE ELECTROLISIS O UNA UNIDAD DE RADIACION UV PARA OXIDAR EL PRECURSOR PARA FORMAR UN OXIDANTE ACTIVO. VENTAJOSAMENTE, EL PH DE LA CORRIENTE LATERAL PUEDE BAJARSE PARA MEJORAR SIGNIFICANTEMENTE LA OXIDACION DE LOS IONES HALURO. CUANDO UNA MUY PEQUEÑA PARTE DE EL PORCENTAJE DE FLUJO PASA A TRAVES DE LA FUENTE LATERAL, EL ACIDO AÑADIDO NO ALTERA SIGNIFICANTEMENTE EL PH DEL SISTEMA ENTERO. EN UNA PUESTA EN PRACTICA PREFERENTE, EL ACIDO AÑADIDO ES UNA ACIDO FOSFONICO QUE ACTUA COMO UN ANTIDESINCRUSTACION. TAMBIEN SE INCLUYE EN LA PRESENTE INVENCION UN METODO PARA INYECCIONDE PRECURSORES OXIDANTES DENTRO DE UN SISTEMA DE AGUA DE PROCESO A TRAVES DE UNA ESTACION DE GENERACION OXIDANTE.
ES93915606T 1992-07-23 1993-07-20 Procedimiento y aparato para controlar microorganismos. Expired - Lifetime ES2076133T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US91916392A 1992-07-23 1992-07-23

Publications (2)

Publication Number Publication Date
ES2076133T1 ES2076133T1 (es) 1995-11-01
ES2076133T3 true ES2076133T3 (es) 1997-08-01

Family

ID=25441620

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93915606T Expired - Lifetime ES2076133T3 (es) 1992-07-23 1993-07-20 Procedimiento y aparato para controlar microorganismos.

Country Status (8)

Country Link
US (1) US5424032A (es)
EP (1) EP0651730B1 (es)
AT (1) ATE153319T1 (es)
BR (1) BR9306779A (es)
CA (1) CA2139934C (es)
DE (2) DE69310912T2 (es)
ES (1) ES2076133T3 (es)
WO (1) WO1994002423A1 (es)

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Also Published As

Publication number Publication date
DE651730T1 (de) 1996-03-14
CA2139934A1 (en) 1994-02-03
DE69310912T2 (de) 1997-10-16
BR9306779A (pt) 1998-12-08
ES2076133T1 (es) 1995-11-01
CA2139934C (en) 1999-11-16
EP0651730A1 (en) 1995-05-10
EP0651730B1 (en) 1997-05-21
ATE153319T1 (de) 1997-06-15
DE69310912D1 (de) 1997-06-26
US5424032A (en) 1995-06-13
WO1994002423A1 (en) 1994-02-03

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