FI127900B - Förfarande för att minska fosforbelastning i avfallsvatten från en massaproduktionsprocess - Google Patents

Förfarande för att minska fosforbelastning i avfallsvatten från en massaproduktionsprocess Download PDF

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Publication number
FI127900B
FI127900B FI20145479A FI20145479A FI127900B FI 127900 B FI127900 B FI 127900B FI 20145479 A FI20145479 A FI 20145479A FI 20145479 A FI20145479 A FI 20145479A FI 127900 B FI127900 B FI 127900B
Authority
FI
Finland
Prior art keywords
pulp
chelating agent
lignocellulosic material
phosphorus
effluent
Prior art date
Application number
FI20145479A
Other languages
English (en)
Finnish (fi)
Other versions
FI20145479A (sv
Inventor
Ines Eluen
Los Santos Ernesto De
Gastón Cubas
Luciana Costabel
Original Assignee
Upm Kymmene Corp
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 Upm Kymmene Corp filed Critical Upm Kymmene Corp
Priority to FI20145479A priority Critical patent/FI127900B/sv
Priority to PCT/FI2015/050349 priority patent/WO2015181442A1/en
Priority to UY0001036139A priority patent/UY36139A/es
Publication of FI20145479A publication Critical patent/FI20145479A/sv
Application granted granted Critical
Publication of FI127900B publication Critical patent/FI127900B/sv

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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/226—Use of compounds avoiding scale formation
    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • 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
    • D21C11/0007—Recovery of by-products, i.e. compounds other than those necessary for pulping, for multiple uses or not otherwise provided for
    • 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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/08—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching
    • 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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1042—Use of chelating agents

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)

Abstract

Keksintö koskee menetelmää fosforikuorman vähentämiseksi jätevedestä, joka on peräisin massanvalmistusprosessista, joka prosessi käsittää vaiheet, joissa: a) keitetään lignoselluloosamateriaalia keitetyn massan muodostamiseksi, b) pestään massa ja c) valkaistaan massa happamissa olosuhteissa, jossa lignoselluloosamateriaalin keittäminen vaiheessa a) suoritetaan vähintään yhden kelatointiaineen läsnä ollessa kalsiumia ja/tai magnesiumia ja fosforia sisältävän liukenemattoman suolan muodostuksen estämiseksi.
FI20145479A 2014-05-27 2014-05-27 Förfarande för att minska fosforbelastning i avfallsvatten från en massaproduktionsprocess FI127900B (sv)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FI20145479A FI127900B (sv) 2014-05-27 2014-05-27 Förfarande för att minska fosforbelastning i avfallsvatten från en massaproduktionsprocess
PCT/FI2015/050349 WO2015181442A1 (en) 2014-05-27 2015-05-21 A method for reducing phosphorus load in effluent from a pulp production process
UY0001036139A UY36139A (es) 2014-05-27 2015-05-25 Método para reducir la carga de fósforo en el efluente de un proceso de pro-ducción de pasta

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20145479A FI127900B (sv) 2014-05-27 2014-05-27 Förfarande för att minska fosforbelastning i avfallsvatten från en massaproduktionsprocess

Publications (2)

Publication Number Publication Date
FI20145479A FI20145479A (sv) 2015-11-28
FI127900B true FI127900B (sv) 2019-05-15

Family

ID=53366047

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20145479A FI127900B (sv) 2014-05-27 2014-05-27 Förfarande för att minska fosforbelastning i avfallsvatten från en massaproduktionsprocess

Country Status (3)

Country Link
FI (1) FI127900B (sv)
UY (1) UY36139A (sv)
WO (1) WO2015181442A1 (sv)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT375393B (de) * 1974-10-04 1984-07-25 Henkel Kgaa Verfahren zum waschen bzw. bleichen von textilien sowie mittel dazu
FI115470B (sv) * 1996-02-19 2005-05-13 Kemira Oyj Förfarande för behandling av kemiskt cellulosamaterial
FI115642B (sv) * 1996-02-19 2005-06-15 Kemira Oyj Blekningsprocess för högutbytesmassor
ATE253662T1 (de) * 1998-10-22 2003-11-15 Ciba Sc Holding Ag Verhinderung der vergilbung von holzstoff und papier unter anwendung von hydroxylamine und anderen co-additiven
US20090008049A1 (en) * 2007-07-05 2009-01-08 Stantec Consulting Ltd. Non-scaling chip conditioning system for energy reduction in mechanical pulping
WO2010066026A1 (en) * 2008-12-08 2010-06-17 Fpinnovations Increasing alkaline pulping yield for softwood with metal ions
AR088750A1 (es) * 2011-08-30 2014-07-02 Cargill Inc Procesos de elaboracion de pulpa
FI128111B (sv) * 2012-11-09 2019-10-15 Upm Kymmene Corp Förfarande och anordning för behandling av vätskeströmmar i en cellulosafabrik

Also Published As

Publication number Publication date
FI20145479A (sv) 2015-11-28
UY36139A (es) 2015-11-30
WO2015181442A1 (en) 2015-12-03

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