A TREATMENT SYSTEM, ITS USE AND METHOD FOR TREATING EFFLUENT AND/OR SLUDGE

A TREATMENT SYSTEM, ITS USE AND METHOD FOR TREATING EFFLUENT AND/OR SLUDGE

The invention relates to a treatment system and method for treating effluent and/or sludge from a manufacturing process of cellulosic pulp or a fibrous cellulosic web, such as paper or board. The effluent and/or sludge is in form of a suspension comprising solid material and/or particles suspended i...

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Hauptverfasser: VUORENPALO, Veli-Matti, PERANDER, Anna-Maija, AHLGREN, Jonni, HILTUNEN, Jaakko
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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creator VUORENPALO, Veli-Matti
PERANDER, Anna-Maija
AHLGREN, Jonni
HILTUNEN, Jaakko
description The invention relates to a treatment system and method for treating effluent and/or sludge from a manufacturing process of cellulosic pulp or a fibrous cellulosic web, such as paper or board. The effluent and/or sludge is in form of a suspension comprising solid material and/or particles suspended in an aqueous liquid phase. The treatment system comprises a water-soluble cationized polysaccharide component comprising cationized cellulose having a charge density of at least 1.5 meq/g dry, measured at pH 4, and a synthetic cationic copolymer of (meth)acrylamide and at least one cationic monomer, the copolymer having a charge density of at most 5 meq/g.
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subjects CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
title A TREATMENT SYSTEM, ITS USE AND METHOD FOR TREATING EFFLUENT AND/OR SLUDGE
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