| Titre : |
Salinity and the tanning sector : responsibility and actions |
| Type de document : |
texte imprimé |
| Auteurs : |
Richard Daniels, Auteur |
| Année de publication : |
2005 |
| Article en page(s) : |
p. 21-25 |
| Langues : |
Anglais (eng) |
| Catégories : |
Cuirs et peaux -- Industrie -- Aspect de l'environnement
Eaux usées
Pollution
Sels
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
The role of common salt in the leather industry is well known and documented. About 20-25% of the fresh hide weight is required where salt is used for preservation, but the amount applied is considerably higher. Between 4 and 6 % on the lime fleshed weight is used in pickle to inhibit acid swelling before the tanning process. Further salt is residual from the manufacture of auxiliaries, or added for purposes of standardisation.
Excepting water, more salt is used in making leather than any other material. Based on a global use of nearly eight million tonnes of bovine hides, sheep, goat and pigskins, as wet salted hides and skins the weight of salt consummed in their preservation and conversion - and discharged from tanneries - is many million tonnes each year. |
| Note de contenu : |
- The effects of salt within the environment
- The effects on plant growth and soil
- Effects on plant growth
- Effects on soil structure and soil organisms
- The effect of sanlity on specific crops
- Land applications of saline tannery effluents
- Salinity within current tanning practice
- Hidden costs presently carried by the tanner
- Salt free preservation of hides and skins
- A major logistical shift
- Time for change
- Fig. 1 : Sanility tolerance of common field crops as a function of Electrical Conductivity of soil extract ECe dSm-1
- Fig. 2 : Impact of soil salinity on major crops in Nebraska as a function of Electrical Conductivity of soil extract ECe
- Fig. 3 : Dry grain yield in relation to the average seasonal salinity in the standing water
- Fig. 4 : Salinity tolerance of selected vegetables as a function of Electrical Conductivity of soil extract ECe |
| En ligne : |
https://drive.google.com/file/d/10Vb0bedXmt6SGBLqIuFddxXBpDpVc9Yc/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32293 |
in WORLD LEATHER > Vol. 18, N° 3 (05/2005) . - p. 21-25
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Salinity and the tanning sector : responsibility and actions in WORLD LEATHER, Vol. 18, N° 3 (05/2005)
