DE69206341T2 - Verfahren zur Behandlung von BCTMP/CTMP-Abwasser. - Google Patents

Verfahren zur Behandlung von BCTMP/CTMP-Abwasser.

Info

Publication number
DE69206341T2
DE69206341T2 DE69206341T DE69206341T DE69206341T2 DE 69206341 T2 DE69206341 T2 DE 69206341T2 DE 69206341 T DE69206341 T DE 69206341T DE 69206341 T DE69206341 T DE 69206341T DE 69206341 T2 DE69206341 T2 DE 69206341T2
Authority
DE
Germany
Prior art keywords
acrylamide
molecular weight
polyethylene oxide
cationic
range
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
DE69206341T
Other languages
German (de)
English (en)
Other versions
DE69206341D1 (de
Inventor
Daniel K Chung
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.)
ChampionX LLC
Original Assignee
Nalco Chemical Co
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 Nalco Chemical Co filed Critical Nalco Chemical Co
Publication of DE69206341D1 publication Critical patent/DE69206341D1/de
Application granted granted Critical
Publication of DE69206341T2 publication Critical patent/DE69206341T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D21C11/0085—Introduction of auxiliary substances into the regenerating system in order to improve the performance of certain steps of the latter, the presence of these substances being confined to the regeneration cycle
    • 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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • 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
    • C02F1/24—Treatment of water, waste water, or sewage by flotation
    • 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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • 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
    • Y10S210/908—Organic

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)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
DE69206341T 1991-07-12 1992-06-19 Verfahren zur Behandlung von BCTMP/CTMP-Abwasser. Expired - Lifetime DE69206341T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/729,052 US5178770A (en) 1991-07-12 1991-07-12 Method of treating bctmp/ctmp wastewater

Publications (2)

Publication Number Publication Date
DE69206341D1 DE69206341D1 (de) 1996-01-11
DE69206341T2 true DE69206341T2 (de) 1996-07-04

Family

ID=24929386

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69206341T Expired - Lifetime DE69206341T2 (de) 1991-07-12 1992-06-19 Verfahren zur Behandlung von BCTMP/CTMP-Abwasser.

Country Status (9)

Country Link
US (1) US5178770A (enExample)
EP (1) EP0522334B1 (enExample)
KR (1) KR100189045B1 (enExample)
CA (1) CA2073419C (enExample)
DE (1) DE69206341T2 (enExample)
ES (1) ES2082280T3 (enExample)
FI (1) FI106951B (enExample)
NO (1) NO179458C (enExample)
TW (1) TW268928B (enExample)

Families Citing this family (39)

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US5190683A (en) * 1990-06-19 1993-03-02 Baker Hughes Incorporated Water clarification composition containing a water clarifier component and a floc modifier component
US5173208A (en) * 1991-06-17 1992-12-22 Nalco Canada Inc. Liquid suspension of polyethylene oxide for use in treating paper and pulp wastewater
US5230808A (en) * 1991-06-17 1993-07-27 Nalco Canada Inc. Liquid suspension of polyethylene oxide for use in treating paper and pulp wastewater
SE500783C2 (sv) * 1992-05-05 1994-09-05 Eka Nobel Ab Sätt att rena vedhartsinnehållande process- eller avloppsvatten
NO176650C (no) * 1992-11-11 1995-05-10 Norsk Hydro As Forbedret prosess for delvis oksidasjon av hydrokarbon og filtrering av en vandig sot/aske slurry (oppslemming)
DE4317466A1 (de) * 1993-05-26 1994-12-01 Degussa Verbessertes Verfahren zur Bleiche von Holzstoffen
US5415733A (en) * 1993-05-27 1995-05-16 High Point Chemical Corp. Method of removing hydrophilic ink
US5368742A (en) * 1993-06-01 1994-11-29 B. G. Roberts Chemicals Inc. Method of removing toxic resin acids and fatty acids from pulp and paper effluent and other streams
FR2722214B1 (fr) * 1994-07-05 1996-08-30 Centre Tech Ind Papier Procede de traitement d'une suspension de fibres papetieres
US5670020A (en) * 1995-06-01 1997-09-23 International Paper Company Foam separation method for reducing AOX, COD, and color bodies of kraft pulp bleach plant effluents
WO1997035067A1 (en) * 1996-03-21 1997-09-25 Betzdearborn Inc. Antifoam compositions containing polymers and methods of use thereof
US5779910A (en) * 1996-04-08 1998-07-14 Cytec Technology Corp. Enhanced flocculation of mineral slurry with polymer blends
DE19635967A1 (de) * 1996-09-05 1998-03-12 Voith Sulzer Stoffaufbereitung Verfahren zur Reinigung einer Suspension aus Primärfaserstoff
US5750034A (en) * 1996-11-01 1998-05-12 Nalco Chemical Company Hydrophilic dispersion polymers for the clarification of deinking process waters
US6019904A (en) * 1996-11-01 2000-02-01 Nalco Chemical Company Hydrophilic dispersion polymers of diallyldimethyl ammonium chloride and acrylamide for the clarification of deinking process waters
KR19980059280A (ko) * 1996-12-31 1998-10-07 박영구 솔빈산의 제조방법
KR19980059279A (ko) * 1996-12-31 1998-10-07 박영구 솔빈산의 제조방법
GB9800497D0 (en) * 1998-01-09 1998-03-04 Allied Colloids Ltd Dewatering of sludges
AU3758699A (en) * 1998-04-24 1999-11-16 Nalco Chemical Company Use of polymer dispersions for paper mill color removal
US6132625A (en) 1998-05-28 2000-10-17 E. I. Du Pont De Nemours And Company Method for treatment of aqueous streams comprising biosolids
AU764315B2 (en) * 1998-12-03 2003-08-14 Nalco Chemical Company Hydrophilic dispersion polymers of diallyldimethyl ammonium chloride and acrylamide for the clarification of deinking process waters
US6203711B1 (en) * 1999-05-21 2001-03-20 E. I. Du Pont De Nemours And Company Method for treatment of substantially aqueous fluids derived from processing inorganic materials
RU2155720C1 (ru) * 2000-02-02 2000-09-10 Открытое акционерное общество "Центральный научно-исследовательский институт бумаги" Способ обработки сточной воды от производства волокнистых полуфабрикатов для изготовления бумаги и картона
US6780330B2 (en) 2001-03-09 2004-08-24 E. I. Du Pont De Nemours And Company Removal of biomaterials from aqueous streams
WO2002079282A1 (de) * 2001-04-02 2002-10-10 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Wasserlösliche verzweigte blockcopolymere
GB0109087D0 (en) 2001-04-11 2001-05-30 Ciba Spec Chem Water Treat Ltd Treatment of suspensions
US20040091581A1 (en) * 2002-11-08 2004-05-13 Ghislaine Joly Starch/collagen casings for co-extruded food products
GB0305079D0 (en) * 2003-03-06 2003-04-09 Mbt Holding Ag Process
CN101187182B (zh) * 2007-11-27 2010-08-25 华泰集团有限公司 Bct制浆后的废水在洗涤碱回收的白泥工艺的应用
BRPI0918989A2 (pt) * 2008-09-22 2015-12-01 Hercules Inc mistura polimérica heterogênea, e, métodos para produzir e para usar uma mistura polimérica heterogênea, e para aumentar o conteúdo de carga de uma folha de papel ou de papelão.
RU2393122C1 (ru) * 2008-11-25 2010-06-27 Николай Александрович Иванов Способ круглогодичного обезвоживания осадков муниципальных сточных вод на иловых площадках
JP6073109B2 (ja) * 2012-11-12 2017-02-01 サントリーホールディングス株式会社 嫌気性生物学的処理を施した廃水の脱色方法
US8992688B2 (en) * 2013-03-10 2015-03-31 Ecolab Usa Inc. Lignin separation from lignocellulosic hydrolizates and acidified pulp mill liquors
US9856159B2 (en) * 2013-04-12 2018-01-02 Psmg, Llc Polymer blends for flocculation
US9714342B2 (en) 2013-08-22 2017-07-25 Psmg, Llc Particle suspensions of flocculating polymer powders
US10011717B2 (en) * 2013-11-27 2018-07-03 Psmg, Llc Particle suspensions of flocculating polymer powders and powder flocculant polymer blends
FI127158B (en) * 2015-09-02 2017-12-15 Kemira Oyj A method for removing humic substances from an alkaline solution
KR102710461B1 (ko) * 2017-12-15 2024-09-25 케미라 오와이제이 용존 기체 부상에 의한 수성 공급물의 처리 방법
FI20236423A1 (en) * 2023-12-22 2025-06-23 Owatec Group Oy Method and device for recovering cellulose fibers from industrial wastewater

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3141816A (en) * 1960-07-27 1964-07-21 Nalco Chemical Co Method of improving operational efficiency of white water recovery systems
US3234076A (en) * 1963-01-08 1966-02-08 Nalco Chemical Co Method of improving retention of fillers in paper making with acrylamidediallylamine copolymer
US3738945A (en) * 1972-02-04 1973-06-12 H Panzer Polyquaternary flocculants
SE357950B (enExample) * 1972-02-22 1973-07-16 Casco Ab
US3843589A (en) * 1973-02-05 1974-10-22 Union Carbide Corp Stable pumpable slurries of ethylene oxide polymers
JPS50111864A (enExample) * 1974-02-13 1975-09-02
US4147681A (en) * 1976-02-24 1979-04-03 Calgon Corporation Stable, self-inverting water-in-oil emulsions
JPS5335254A (en) * 1976-09-14 1978-04-01 Toa Gosei Chem Ind Waste water treating method
CA1194254A (en) * 1980-11-28 1985-10-01 Margaret J. Molnar Diallyl dimethyl ammonium chloride polymers for pitch control
CA1150914A (en) * 1980-11-28 1983-08-02 Margaret J. Molnar Amine-epichlorohydrin polymers for pitch control
SU1113446A2 (ru) * 1983-06-30 1984-09-15 Центральный научно-исследовательский институт бумаги Способ получени бумаги
US4738750A (en) * 1986-02-10 1988-04-19 Stone Container Corp. System and method for treating pulp and paper mill waste water
SE454507B (sv) * 1986-11-21 1988-05-09 Berol Kemi Ab Sett att inom pappers-, massa- eller boardindustrin forbettra retention eller rening av cellulosafibersuspensioner resp avloppsvatten
GB2211180B (en) * 1987-09-10 1991-05-22 Chemisolv Ltd Treating effluent from a paper or board manufacturing process
US4795531A (en) * 1987-09-22 1989-01-03 Nalco Chemical Company Method for dewatering paper

Also Published As

Publication number Publication date
KR930002244A (ko) 1993-02-22
NO922741L (no) 1993-01-13
FI106951B (fi) 2001-05-15
FI923148L (fi) 1993-01-13
ES2082280T3 (es) 1996-03-16
CA2073419C (en) 2002-11-19
FI923148A0 (fi) 1992-07-08
EP0522334B1 (en) 1995-11-29
NO179458B (no) 1996-07-01
CA2073419A1 (en) 1993-01-13
NO922741D0 (no) 1992-07-10
TW268928B (enExample) 1996-01-21
NO179458C (no) 1996-10-09
DE69206341D1 (de) 1996-01-11
EP0522334A1 (en) 1993-01-13
KR100189045B1 (ko) 1999-06-01
US5178770A (en) 1993-01-12

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: SEITZ, R., DIPL.-ING.UNIV., PAT.-ANW., 80538 MUENC

R071 Expiry of right

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