Desorption of Cationic Polyacrylamide from Bleached Kraft Pulp Fibers

Alum and cationic polyacrylamide were usually used together in the paper making process, and experiments were carried out on the adsorption and desorption of the polyacrylamide in contact with wood pulp fibres. The results showed that the adsorption capacity of the polyacrylamide was considerably re...

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Bibliographic Details
Published in:Water science and technology 1987-01, Vol.19 (5/6), p.939-951
Main Authors: Warren, C F, Gehr, R
Format: Article
Language:English
Subjects:
Adsorption
Alum
Aluminum sulfate
Bleaching
Capacity
Cations
Chemiluminescence
Contaminants
Desorption
Detection
Dosage
Effluents
Fibers
Kraft pulp
pH effects
Polyelectrolytes
Polymers
Pulp
Pulp & paper industry
Pyrolysis
Receiving waters
Water damage
Wood
Wood pulp
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Summary:Alum and cationic polyacrylamide were usually used together in the paper making process, and experiments were carried out on the adsorption and desorption of the polyacrylamide in contact with wood pulp fibres. The results showed that the adsorption capacity of the polyacrylamide was considerably reduced in the presence of even low concentrations of alum, but addition of alum did not result in desorption of previously adsorbed polyacrylamide from saturated fibres. The implications of these findings for pollution of surface waters receiving discharges of paper mill waste waters are indicated.
ISSN:0273-1223
1996-9732
DOI:10.2166/wst.1987.0272