| Titre : |
Disintegration of tannery sludge by acoustic cavitation-an approach for sludge management |
| Type de document : |
texte imprimé |
| Auteurs : |
C. L. Rai, Auteur ; A. Sivasamy, Auteur ; P. G. Rao, Auteur |
| Année de publication : |
2004 |
| Article en page(s) : |
p. 457-460 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Index. décimale : |
675.2 Préparation du cuir naturel. Tannage |
| Résumé : |
The sludge biomass, composed largely of organic matter 60-90%(W/V), is contained within the cell wall membranes of microbial cells. It was found that the pressure pulses produced by an ultrasonic homogeniser significantlyinfluenced the degree of disintegration of the cells containing the waste. The mechanical sludge disintegration was investigated with an ultrasonic homogeniser operated at a frequency of 20 kHz with different energy intensities. The influence of sludge solids content on the disintegration of the sludge also was investigated. It was found that the influence of mechanical disintegration on particle size cannot fully describe the release of organic material into the sludge water. The release of organic material into the sludge water can best be estimated by the chemical oxygen demand (COD) and by protein release. The degree of disintegration, as indicated by COD and protein release, increased significantly when the energy intensity applied with the ultrasonic homogenizer was increased. |
| En ligne : |
https://drive.google.com/file/d/15gr3iGJwJ65bdaytl-9ZImxPrz99hbVD/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=4227 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. XCIX, N° 11 (11/2004) . - p. 457-460
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