| Titre : |
Recycling of unhairing liquors from a sheepskin tannery by ultrafiltration system |
| Type de document : |
texte imprimé |
| Auteurs : |
L. M. Silva, Auteur ; M. J. Almeida, Auteur ; J. Gomes, Auteur ; A. M. Anselmo, Auteur |
| Année de publication : |
2001 |
| Article en page(s) : |
p. 167-170 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Cuirs et peaux de moutons
Eaux usées -- Recyclage
Epilage
Filtration
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
The work reported refers to the application of ultrafiltration to spent unhairing liquors from a low production scale Portuguese tannery. dealing mainly with sheepskins.
A set of trials with an ultrafiltration pilot were carried out aiming to study the continuous recycling of permeate and the evaluation of total savings.
Although good savings were attained (67 % water. 58 % for sulphide and 53 % for lime), a fair average permeate flux was obtained (38 litres rn2 hour). Because of the capital and operational costs associated with membrane technologies the obtained results showed that good practical permeate fluxes (higher than 40 litres/m2/hour) and process volumes higher than 10 m3/day are important conditions for the economic viability of’ the process. |
| Note de contenu : |
- Table 1 : Summary of permeate recycling trials
- Table 2 : Accumulated resrIts for permeate recycling trials
- Table 3 : Analytical results obtained for permeate recycling trials
- Table 4 : Analytical results obtained in one UF trial of unhairing liquor from the same tannery
- Table 5 : Total consumptions and savings attained with UF
- Table 6 : Economic savings attained with UF
- Table 7 : Projected operating economics for ultratiltering spent unhairing liquors |
| En ligne : |
https://drive.google.com/file/d/15-PQJF7mKAE7ash0tJmAVqqzujosq1DC/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40231 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 85, N° 5 (09-10/2001) . - p. 167-170
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Recycling of unhairing liquors from a sheepskin tannery by ultrafiltration system in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 85, N° 5 (09-10/2001)
