Colour removal of pulp and paper effluents

The paper industry requires large volumes of process water of high purity and generate equally large volumes of waste water from digestion process, which is highly coloured. The removal of colour from paper mill waste water is one of the major environmental problems, because of the difficulty of tre...

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Bibliographic Details
Published in:Indian journal of chemical technology 2004-09, Vol.11 (5), p.617-621
Main Authors: Chakradhar, B, Shrivastava, S
Format: Article
Language:English
Online Access:Get full text
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Summary:The paper industry requires large volumes of process water of high purity and generate equally large volumes of waste water from digestion process, which is highly coloured. The removal of colour from paper mill waste water is one of the major environmental problems, because of the difficulty of treating such water by conventional methods. The present study was undertaken for removal of colour from paper mill effluents using waste sludge from ETP as an adsorbent, with heat treatment. The operating variables studied were effluent concentration, adsorbent dosage and contact time.
ISSN:0971-457X