| Titre : |
Low temperature conversion of tannery sludges |
| Type de document : |
texte imprimé |
| Auteurs : |
G. E. Renner, Auteur ; H. J. Renner, Auteur ; Heinz-Peter Germann, Auteur |
| Année de publication : |
2002 |
| Article en page(s) : |
p. 45-48 |
| Langues : |
Anglais (eng) |
| Catégories : |
Basses températures
Boues résiduaires
Cuirs et peaux -- Industrie
Déchets industriels -- Elimination
Traitement thermique
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
As part of the treatment of leather tanning industry effluents, waste water treatment sludges are generated. In June, 2005, new German landfill regulations (TA Siedlungsabfall) will come into force which limits the organic content of disposable waste. Consequently wastes will have to be thermally treated prior to landfilling. Tannery sludges contain non-toxic Cr(III), but when burning these residues partial oxidation to the toxic Cr(VI) occurs.
A method is therefore required to avoid this oxidation. As part of a co-operative research project supported by the BMBF (Federal Ministry for Education and Research) and a German-Brazilian environmental programme, LGR has tested the low temperature conversion on leather industry sludges in an integrated pilot plant. A particular objective was that no Cr(VI) should be produced across the process. |
| Note de contenu : |
- The integrated pilot plant
- Operational Data
- Reaction products of low temperature conversion
- Heat content of the conversion products
- Energy balance
- Evaluation of the results
- Fig. 1 : Direct flue gas dryer
- Fig. 2 : Conversion system with two converters
- Fig. 3 : Conversion yield - biolog. treatment sludge
- Fig. 4 : Conversion yield - phys./chem. treatment sludge
- Fig. 5 : The influence of organic matter and temperature on oil obtained
- Fig. 6 : LTC-Product - Char
- Fig. 7 : Reduction of substances in the eluate of solid wastes for disposal
- Fig. 8 : LTC-Product - Oil
- Fig. 9 : LTC-Product - Oil
- Fig. 10 : LTC-Product - Reaction water
- Fig. 11 : LTC-Product - Reaction water |
| En ligne : |
https://drive.google.com/file/d/11kTLmtg2bBvXxEHTCs_ZwOaZ6qvZdoOR/view?usp=drive [...] |
| Format de la ressource électronique : |
pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32220 |
in WORLD LEATHER > Vol. 15, N° 3 (05/2002) . - p. 45-48
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