ES2034879A1 - Metodo de purificacion y recirculacion de las aguas residuales de blanqueo de las fabricas de pasta. - Google Patents

Metodo de purificacion y recirculacion de las aguas residuales de blanqueo de las fabricas de pasta.

Info

Publication number
ES2034879A1
ES2034879A1 ES919101076A ES9101076A ES2034879A1 ES 2034879 A1 ES2034879 A1 ES 2034879A1 ES 919101076 A ES919101076 A ES 919101076A ES 9101076 A ES9101076 A ES 9101076A ES 2034879 A1 ES2034879 A1 ES 2034879A1
Authority
ES
Spain
Prior art keywords
bleach
pulp
treating
waste water
fluid
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.)
Granted
Application number
ES919101076A
Other languages
English (en)
Other versions
ES2034879B1 (es
Inventor
Bertel Myreen
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.)
Poeyry Jaakko & Co Oy
Original Assignee
Poeyry Jaakko & Co Oy
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 Poeyry Jaakko & Co Oy filed Critical Poeyry Jaakko & Co Oy
Publication of ES2034879A1 publication Critical patent/ES2034879A1/es
Application granted granted Critical
Publication of ES2034879B1 publication Critical patent/ES2034879B1/es
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/10—Concentrating spent liquor by evaporation

Landscapes

  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

METODO DE PURIFICACION Y RECIRCULACION DE LAS AGUAS RESIDUALES DE BLANQUEO DE LAS FABRICAS DE PASTA. LOS PRODUCTOS QUIMICOS CONTENIENDO CLORO SE SEPARAN DEL LIQUIDO OBTENIDO DE LA PRIMERA ETAPA DE BLANQUEO (DC) QUE UTILIZA DICHOS PRODUCTOS PARA BLANQUEAR PASTA (2) QUE HA SIDO LAVADA (W) Y PARCIALMENTE DESGOTADA (PL) MEDIANTE EXTRACCION DE AGUA (P2) DE LA PASTA (2) DE DICHA ETAPA DE BLANQUEO, HASTA UN CONTENIDO DE SOLIDOS ENTRE 25% Y 35% DE LA PASTA (2) DE ENTRADA, MEDIANTE RECIRCULACION DEL LIQUIDO DE LA SEGUNDA EXTRACCION (P2) A LA ETAPA DE BLANQUEO Y MEDIANTE EVAPORACION (EV) DEL LIQUIDO (9) QUE SALE DE DICHA ETAPA (DC) POR CALENTAMIENTO INDIRECTO CON VAPOR CONDENSANTE OBTENIDO MEDIANTE RECOMPRESION DE VAPOR SEPARADO EN LA EVAPORACION. LAS EXTRACCIONES (P1, P2) SE REALIZAN PREFERENTEMENTE PRENSANDO LA SUSPENSION DE PASTA, Y LA EVAPORACION SE REALIZA EN VARIAS ETAPAS EN PARALELO O EN SERIE A MENOS DE 70º C.
ES9101076A 1990-05-04 1991-04-29 Metodo de purificacion y recirculacion de las aguas residuales de blanqueo de las fabricas de pasta. Expired - Fee Related ES2034879B1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI902261A FI85293C (sv) 1990-05-04 1990-05-04 Förfarande för rening och återföring av cellulosafabrikers blekeriavva tten

Publications (2)

Publication Number Publication Date
ES2034879A1 true ES2034879A1 (es) 1993-04-01
ES2034879B1 ES2034879B1 (es) 1993-11-01

Family

ID=8530380

Family Applications (1)

Application Number Title Priority Date Filing Date
ES9101076A Expired - Fee Related ES2034879B1 (es) 1990-05-04 1991-04-29 Metodo de purificacion y recirculacion de las aguas residuales de blanqueo de las fabricas de pasta.

Country Status (7)

Country Link
JP (1) JPH089837B2 (es)
AU (1) AU634381B2 (es)
BR (1) BR9101745A (es)
CA (1) CA2041536C (es)
ES (1) ES2034879B1 (es)
FI (1) FI85293C (es)
SE (1) SE507066C2 (es)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR950702505A (ko) * 1992-07-20 1995-07-29 알 브이 테이트 기체 수화물의 제조 방법(Manufacture of Gas Hydrates)
US5439555A (en) * 1992-07-30 1995-08-08 Kamyr, Inc. Minimum adverse environmental pulp with feed to chlorate manufacture
US5374333A (en) * 1992-07-30 1994-12-20 Kamyr, Inc. Method for minimizing pulp mill effluents
US5549788A (en) * 1992-07-30 1996-08-27 A. Ahlstrom Corporation Minimal effluents discharge pulp mill with chemical recovery
US5300191A (en) * 1992-07-30 1994-04-05 Kamyr, Inc. Chlorine dioxide generation for a zero discharge pulp mill
US5302246A (en) * 1992-07-30 1994-04-12 Kamyr, Inc. Method of managing liquid steams in a pulp mill
US5628872A (en) * 1993-10-22 1997-05-13 Kanyr Ab Method for bleaching pulp with hydrogen peroxide recovered from cellulosic spent liquor
JPH10506964A (ja) * 1994-10-05 1998-07-07 エカ ケミカルズ アクチェボラーグ パルプ製造におけるプロセス水の処理方法
FI990127A0 (fi) * 1999-01-22 1999-01-22 Ahlstrom Machinery Oy Menetelmä massan käsittelemiseksi
GB0301183D0 (en) 2003-01-18 2003-02-19 Rolls Royce Plc Electrostatic sensors
SE0300276L (sv) * 2003-01-31 2003-12-09 Kvaerner Pulping Tech Förfarande för blekning av cellulosamassa samt bleklinje härför
FI126551B (fi) * 2009-11-25 2017-02-15 Andritz Oy Menetelmä nestevirtojen käsittelemiseksi sellutehtaalla
JP7317509B2 (ja) * 2019-01-10 2023-07-31 日本製紙株式会社 リグニンの製造方法、及びリグニン系分散剤

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4159682A (en) * 1977-12-01 1979-07-03 Dorr-Oliver Incorporated Fluid bed combustion with predrying of moist feed using bed sand
ES8305588A1 (es) * 1980-11-15 1983-04-16 Berstorff Gmbh Masch Hermann Perfeccionamientos en prensas de husillo, particularmente para la separacion mecanica de liquidos de mezclas de solidos y liquidos .
US4838995A (en) * 1986-10-23 1989-06-13 Thune-Eureka A/S Process for bleaching cellulose pulp, a plant for preforming said process, and a screw press for use with said process and plant
WO1989012716A1 (en) * 1988-06-24 1989-12-28 Sigurd Fongen Process and apparatus for the manufacture of pulp for paper, board, fiberboard and similar products
EP0356203A2 (en) * 1988-08-23 1990-02-28 Sappi Limited Treatment of effluents
ES2016501A6 (es) * 1988-08-26 1990-11-01 Aquamax Oy Aparato de destilacion.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA973661A (en) * 1972-09-29 1975-09-02 Pulp And Paper Research Institute Of Canada Press alkaline extraction of cellulosic pulp
FI67894C (fi) * 1982-05-21 1985-06-10 Rauma Repola Oy Foerfarande och anordning foer blekning av fibermassa
FI77064C (fi) * 1985-04-29 1989-01-10 Tampella Oy Ab Foerfarande foer kokning och blekning av cellulosa.

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4159682A (en) * 1977-12-01 1979-07-03 Dorr-Oliver Incorporated Fluid bed combustion with predrying of moist feed using bed sand
US4159682B1 (es) * 1977-12-01 1986-09-16
ES8305588A1 (es) * 1980-11-15 1983-04-16 Berstorff Gmbh Masch Hermann Perfeccionamientos en prensas de husillo, particularmente para la separacion mecanica de liquidos de mezclas de solidos y liquidos .
US4838995A (en) * 1986-10-23 1989-06-13 Thune-Eureka A/S Process for bleaching cellulose pulp, a plant for preforming said process, and a screw press for use with said process and plant
WO1989012716A1 (en) * 1988-06-24 1989-12-28 Sigurd Fongen Process and apparatus for the manufacture of pulp for paper, board, fiberboard and similar products
EP0356203A2 (en) * 1988-08-23 1990-02-28 Sappi Limited Treatment of effluents
ES2016501A6 (es) * 1988-08-26 1990-11-01 Aquamax Oy Aparato de destilacion.

Also Published As

Publication number Publication date
FI85293B (fi) 1991-12-13
CA2041536A1 (en) 1991-11-05
FI902261A0 (fi) 1990-05-04
FI85293C (sv) 1992-03-25
SE9101278D0 (sv) 1991-04-26
SE9101278L (sv) 1991-11-05
CA2041536C (en) 1997-12-09
JPH06257088A (ja) 1994-09-13
ES2034879B1 (es) 1993-11-01
JPH089837B2 (ja) 1996-01-31
AU7627891A (en) 1991-11-07
BR9101745A (pt) 1991-12-10
AU634381B2 (en) 1993-02-18
FI902261A (fi) 1991-11-05
SE507066C2 (sv) 1998-03-23

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20060503