| Titre : |
Closed-loop processing : management in existing tanneries and new-builds designed for purpose |
| Type de document : |
texte imprimé |
| Auteurs : |
Richard Daniels, Auteur ; Jiasheng Su, Auteur ; Falei Zhang ; Zhuangdou Zhang |
| Année de publication : |
2019 |
| Article en page(s) : |
p. 470-476 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Cuirs et peaux -- Industrie -- Aspect de l'environnement
Cuirs et peaux de bovins
Cuirs et peaux de moutons
Déchets -- Réduction
Déchets industriels -- Elimination
Eau -- Consommation -- Réduction
Eaux usées -- Recyclage
Economies d'énergie
|
| Index. décimale : |
675.2 Préparation du cuir naturel. Tannage |
| Résumé : |
Closed-loop processing for unhairing/liming and tannage is established technology for the processing of raw hides to the wet blue state.
This approach produces a high value product and, as part of sustainable manufacture, is significant. Savings are gained in chemicals, water and energy and reductions in the wastewater load. In effluent treatment, both the sulfide oxidation stage and chrome recovery/regeneration systems are eliminated. Both sulfate and chloride are minimised, and a reduction in solid waste generation.
In November 2018 new-build tanneries with radically different layouts were at an advanced stage of construction and installation of new equipment. These were designed to management and technical requirements of this specific technology.
In addition, the technology had made the transition from bovine manufacture to nappa leathers production in a major sheepskin tannery. And within small scale opérations — bovine hides, bovine bellies, sheep and goat skins - chrome tannage was taking place with processing adapted around the prevailing conditions and tanners requirements. |
| Note de contenu : |
- METHODOLOGY : Manufacturing procedures - Soaking and washes - The hair recovery and liming closed-loop - Limed hide movement - The deliming/bating processes - The pickle and chrome tanning closed-loop - Movement of water during process - Soalking and washes - The hair recovery and liming closed-loop - Removal of solubles and residules from process - The pickling and tanning closed-loop - An equilibrium of salts withinn processes
- DISCUSSION : New-build bovine tanneries - Sheepskin manufacture - Small-scale manufacture |
| En ligne : |
https://drive.google.com/file/d/1lEiqQLIsaEjlo8Cm83ljH7H91HEU8sXB/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33390 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXIV, N° 12 (12/2019) . - p. 470-476
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Closed-loop processing : management in existing tanneries and new-builds designed for purpose in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXIV, N° 12 (12/2019)
