| Titre : |
Bioaccumulation route for secured recovery and recoup of chromium from tannery wastewaters |
| Type de document : |
texte imprimé |
| Auteurs : |
Rathinam Aravindhan, Auteur ; Balachandran Unni Nair, Auteur ; Jonnalagadda Raghava Rao, Auteur ; Balaraman Madhan, Auteur |
| Année de publication : |
2004 |
| Article en page(s) : |
p. 197-204 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
Increasing concern regarding the toxicity and environmental impact of the chromium metal ion discharge from the tannery has led to investigations into alternative effluent treatment technologies. The use of biological materials for heavy metal ion removal and recovery technologies has gained widespread acceptability during recent years because of its high performance at low cost compared to other treatment methodologies. In this work a species of brown seaweed is shown to accumulate chromium from tannery wastewaters. Bioaccumulation provides a cheaper means for the removal of heavy metals; however, the reuse of recovered metal is a challenging problem. The chromium-loaded seaweed was advantageously used as a reductant for the manufacture of basic chromium sulfate. The developed product has been employed for tanning of goatskins. Studies reveal that the quality of the wet blue leathers is on a par with the leathers tanned with commercial BCS. Shrinkage temperature of the leathers is comparable and is above 110 °C at an offer of 1.25% Cr2O3. Chromium exhaustion is about 74%. Performance of the crust leathers is comparable to that of conventional tanned leathers. This methodology provides a holistic approach for the recovery and reuse of chromium from tannery wastewaters. |
| En ligne : |
https://drive.google.com/file/d/1NV60UnTMQv2VtNRP6uAxvoHuLfCyALv4/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=4193 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. XCIX, N° 5 (05/2004) . - p. 197-204
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Bioaccumulation route for secured recovery and recoup of chromium from tannery wastewaters in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCIX, N° 5 (05/2004)
