| Titre : |
Decolorisation of aqueous dye solutions by low-cost adsorbents : a review |
| Type de document : |
texte imprimé |
| Auteurs : |
Rashmi Sanghi, Auteur ; Preeti Verma, Auteur |
| Année de publication : |
2013 |
| Article en page(s) : |
p. 85-108 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Absorbants et adsorbants
Déchets industriels -- Elimination
Décoloration
Eaux usées -- Epuration
Solutions aqueuses (chimie)
|
| Index. décimale : |
667.3 Teinture et impression des tissus |
| Résumé : |
Effluent generated by the textile industry can be highly coloured. Before the waste is disposed into receiving waters, colour removal is an important consideration. Because of their complex molecular structures, dyes present in the textile wastewater are not removed easily by conventional wastewater treatment processes. They are fairly stable to light, as well as heat, and resist biodegradation, thus posing a challenge to conventional physico-chemical and biological treatment methods. Although adsorption technology using activated carbon has been considered to be an effective and proven technology, it has its limitations as it is expensive and necessitates regeneration. As cost is an important consideration in most developing countries, efforts have been made to explore the possibility of using various low-cost alternatives that are biodegradable, abundant, readily available, and are derived from waste materials. This article is a compilation of the investigations carried out by numerous researchers (from 2002 onwards) on the effective use of different kinds of low-cost adsorbents for the removal of specific dyes from textile wastewater. |
| Note de contenu : |
- ADSORPTION MECHANISM
- NATURAL MATERIALS : Activated carbon fibre - Activated charcoal - Activated carbon cloth - Activated carbon - Commercially prepared activated carbons - Peat - Plant products - Biomass - Chitin and chitosan - Clays -
- AGRICULTURE WASTE : Barley husk - Wheat husk - Coffee husks - Coconut husk - Rice husk - Rice straw - Rice hull - Cotton seed hull - Pumpkin seed hull - Palm ash - Wheat shells - Wheat straw - Sugar cane dust - Broad bean peels - Spent corncob substrate - Peanut hull - Hazelnut shell - Pine-fruit shells - Oil palm trunk fibre - Palm kernel - Sawdust - Garlic peel - Banana stalk waste - Grass waste
- INDUSTRIAL WASTE : Lignin - Fly ash - Blast furnace dust, sludge and slag - Red mud
- SOIL
- NANOPARTICLES
- LIMITATIONS AND FUTURE SCOPE OF STUDY |
| DOI : |
10.1111/cote.12019 |
| En ligne : |
http://onlinelibrary.wiley.com/doi/10.1111/cote.12019/pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18048 |
in COLORATION TECHNOLOGY > Vol. 129, N° 2 (04/2013) . - p. 85-108
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