IEC 183 |
| Richard S. Blackburn, Institute of Technical Textiles, Institute of Technical Textiles, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, United Kingdom |
| Dyeing effluent is one of the largest contributors to textile effluent, such coloured wastewater has a seriously destructive impact on the environment. Currently, adsorption is suggested as an effective treatment on decolourisation of textile dyeing effluent, but current techniques employ adsorption chemistry than is not particularly environmentally friendly, such as the use of alum. In this study, natural polysaccharides were used as adsorbents for removal of dye molecules from effluent. The results showed that naturally cationic polysaccharides such as chitin and chitosan gave excellent levels of colour removal, and this was attributed to ionic interaction between the cationic polymer and the anionic dye molecules. However, some non-ionic polysaccharides, such as locust bean gum and ghatti gum also exhibited excellent capability of dye removal, this being attributed to specific hydrogen bonding-structure relationships. These polysaccharides provided an economical, environmentally friendly alternative to current effluent treatments. |
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General Poster Session
5:00 PM-7:00 PM, Tuesday, March 25, 2003 Convention Center -- Hall G, Poster
Division of Industrial and Engineering Chemistry |