| Titre : |
Anaerobic digestion of tannery sludge : lowering salinity to reduce sludge volume |
| Type de document : |
texte imprimé |
| Auteurs : |
J. P. Barnard, Auteur |
| Année de publication : |
2005 |
| Article en page(s) : |
p. 24-28 |
| Langues : |
Anglais (eng) |
| Catégories : |
Boues résiduaires
Déchets -- Réduction
Digestion anaérobie
Tannage -- Déchets
|
| Index. décimale : |
675.2 Préparation du cuir naturel. Tannage |
| Résumé : |
An investigation was performed to minimise the volume of tannery sludges by bio-degradation. To overcome the inhibiting effects caused by inorganic solubles used in leather manufacture, a nove! technique was employed to reduce the salts content of these sludges. The investigation proved a success, and achieved a significant reduction in the volume of the sludge.
In a partnership between UNIDO and Zimbabwe's Bata Shoe Company, the 18-month research programme was conducted under the technical supervision of consultant Johan Barnard, Envirotan Water from South Africa. Bata (Zimbabwe) supported the effort with hardware and day-to-day manpower while UNIDO funded the consultant expertise under the ongoing project "Assistance in Tannery Pollution Control" (US/ZIM/98/069). |
| Note de contenu : |
- The research concept
- The pilot study
- The tannery and waste water plant
- The pilot anaerobic digester plant
- The start-up phase
- The loading phase
- Control of the digester
- Temperature effects
- Inhibiting chemicals
- Gassing studies
- Findings from the investsigation
- Panel 1 : Anaerobic digester pilot plant
- Panel 2 : pH stabilisation at start-up - Anaerobic digestion of tannery sludge
- Panel 3 : Digester space load rate - Anaerobic digestion of tannery sludge
- Panel 4 : Percentage reduction of washed sludge |
| En ligne : |
https://drive.google.com/file/d/1PgzH9jsWDYAsXhBgVh6Qb6tt8jDb9jNC/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32494 |
in WORLD LEATHER > Vol. 18, N° 7 (11/2005) . - p. 24-28
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