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MX9706328A - Eliminacion mejorada de contaminantes hidrofobicosde los sistemas de clarificacion del agua. - Google Patents

Eliminacion mejorada de contaminantes hidrofobicosde los sistemas de clarificacion del agua.

Info

Publication number
MX9706328A
MX9706328A MX9706328A MX9706328A MX9706328A MX 9706328 A MX9706328 A MX 9706328A MX 9706328 A MX9706328 A MX 9706328A MX 9706328 A MX9706328 A MX 9706328A MX 9706328 A MX9706328 A MX 9706328A
Authority
MX
Mexico
Prior art keywords
contaminants
secondary fiber
polyvinyl chloride
fiber contaminants
water clarification
Prior art date
Application number
MX9706328A
Other languages
English (en)
Other versions
MXPA97006328A (es
Inventor
Carol S Greer
Ann M Capozzi
Linda S Wilkins
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 MX9706328A publication Critical patent/MX9706328A/es
Publication of MXPA97006328A publication Critical patent/MXPA97006328A/es

Links

Classifications

    • 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
    • C02F1/56—Macromolecular compounds
    • 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
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D21C5/02—Working-up waste paper
    • D21C5/022—Chemicals therefor
    • 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
    • D21C9/086—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 with organic compounds or compositions comprising organic compounds
    • 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
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/64—Paper recycling
    • 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
    • Y10S210/928—Paper mill waste, e.g. white water, black liquor treated

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Wood Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Toxicology (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Paper (AREA)

Abstract

La presente invencion proporciona un método para remover contaminantes fibrosos secundarios a partir de las aguas residuales de la fábrica de papel, que comprende agregar un cloruro de polivinilo, un coagulante polimérico cationico y un floculante polimérico a las aguas residuales de la fábrica de papel que contienen contaminantes de fibra secundarios en una cantidad suficiente para aglomerar los contaminantes de fibra secundarios a tamaños de partículas más grande, y remover los contaminantes de fibra o fibrosos secundarios a partir del agua residual por una técnica de clarificacion por flotacion del aire disuelto. La adicion de cloruro de polivinilo particulado en combinacion con un coagulante polimérico y floculante previo al proceso de clarificacion de FAD, causa que los contaminantes lleguen a ser revestidos preferencialmente con las partículas de cloruro de polivinilo. Este revestimiento es lo que causa la remocion subsecuente de los contaminantes de fibra o fibrosos secundarios en el proceso de clarificacion de FAD para ser mas efectivo.
MXPA/A/1997/006328A 1996-08-20 1997-08-20 Eliminacion mejorada de contaminantes hidrofobicos de los sistemas de clarificacion del agua MXPA97006328A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/700,000 US5798046A (en) 1996-08-20 1996-08-20 Enhanced removal of hydrophobic contaminants from water clarification systems
US08700000 1996-08-20

Publications (2)

Publication Number Publication Date
MX9706328A true MX9706328A (es) 1998-07-31
MXPA97006328A MXPA97006328A (es) 1998-11-09

Family

ID=

Also Published As

Publication number Publication date
AU719019B2 (en) 2000-05-04
BR9704472A (pt) 1999-03-09
ID18056A (id) 1998-02-26
DE69701074D1 (de) 2000-02-10
NO973815L (no) 1998-02-23
EP0825293B1 (en) 2000-01-05
US5798046A (en) 1998-08-25
CA2213367A1 (en) 1998-02-20
ES2140938T3 (es) 2000-03-01
AU3517797A (en) 1998-02-26
NO973815D0 (no) 1997-08-19
DE69701074T2 (de) 2000-10-12
EP0825293A1 (en) 1998-02-25
MY115550A (en) 2003-07-31

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Legal Events

Date Code Title Description
FG Grant or registration
MM Annulment or lapse due to non-payment of fees