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Auteur G. Thyagarajan |
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Ajouter le résultat dans votre panier Affiner la rechercheThe role of an acid-stable fatliquor in leather manufacture / K. Vijayaklakshmi in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 73 (Année 1989)
Titre : The role of an acid-stable fatliquor in leather manufacture Type de document : texte imprimé Auteurs : K. Vijayaklakshmi, Auteur ; Geetha Baskar, Auteur ; K. S. Jayaraman, Auteur ; V. V. M. Rao, Auteur ; S. Rajadurai, Auteur ; G. Thyagarajan, Auteur Année de publication : 1989 Article en page(s) : p. 47-51 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Acid-stable fatliquors, based on highly unsaturated oils, that can find application at different stages of leather processing have been prepared. The influence of one such fatliquor based on sardine fish oil has been studied when applied during pickling and chrome tanning in comparison with a cationic fatliquor and control procedure where in a conventional fatliquoring has been followed. The investigation has indicated that the introduction of an anionic acid-stable fatliquor during pickling and tanning results in the production of leathers with better feel and increased strength characteristics. En ligne : https://drive.google.com/file/d/1qLsoE_AmXewZmdpDE5aLLHiFm5Hx-lsk/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8827
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 73 (Année 1989) . - p. 47-51[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 007136 - Périodique Bibliothèque principale Documentaires Disponible
Titre : Utilization of water hyacinth in the treatment and disposal of tannery waste water Type de document : texte imprimé Auteurs : B. G. S. Prasad, Auteur ; G. Thyagarajan, Auteur ; Y. Nayudamma, Auteur Année de publication : 1991 Article en page(s) : p. 56-58 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : Water hyacinth (Echorinia crassipes) was grown under controlled conditions and subjected to different concentrations of tannery effluent in order to determine the levels of contaminants tolerated by the plant and the concomitant removal of BOD and chromium. Six sets of experiments were run and samples were collected every week for analysis. Each set of experiment was carried out for between 20-24 days. The proportions of tannery waste to sewage used in these experiments were 20:80, 40:60, 80:20 and 100:0. In all the experiments, a control was carried out using only domestic sewage.
It was found that the water hyacinth thrived during initial period at all levels, but began to show signs of decay after about 10 days in the three higher concentrations of tannery waste, i.e., 60:40, 80:20 and 100:0. The retarded growth and decay was observed in all the concentrations after a period of 4 weeks. The BOD removals in 16 days in all the five concentrations were 80 %, 68 %, 49 %, 35 % and 20 % respectively. Chromium was completely removed in the 20: 80 and 40:60 concentrations of tannery waste within 8 and 16 days respectively, for the other concentrations, the removals were in the range of 30-80 %.En ligne : https://drive.google.com/file/d/1JmGcB0rWoEB9oT4WAgSGjJXVUJtcrmIh/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8677
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 75 (Année 1991) . - p. 56-58[article]Réservation
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