[article]
| Titre : |
Anaerobic-aerobic treatment of vegetable tanning waste |
| Type de document : |
texte imprimé |
| Auteurs : |
Michael H. Tunick, Auteur ; David G. Bailey, Auteur ; Joanna H. Moore, Auteur ; Joseph E. Cooper, Auteur |
| Année de publication : |
1985 |
| Article en page(s) : |
p. 101-105 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Index. décimale : |
675.2 Préparation du cuir naturel. Tannage |
| Résumé : |
Vegetable tanning waste can be treated effectively on a laboratory scale by a combination of an anaerobic contact reactor followed by a complete-mix aerobic reactor. The 28.7 liter anaerobic reactor is constantly stirred and maintened at 37°C. A settling tank follows to permit sludge recycling. The aerobic reactor contains 22.6 liters of microorganisms, which are suspended by the flow of air. Waste aerobic sludge is recycled back to the anaerobic reactor for digestion.
With a hydraulic retention time of 58 hr. and a loading of 2.5-5.0 g TCOD/day, an average TCDO removal of 90 percent was obtained (corrected for S). The anaerobes produced an average of 0.161 liters CH4/g TCOD removed. The CH4 can potentially be recovered and used to maintain the temperature of the anaerobic reactor. |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9250 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXX (Année 1985) . - p. 101-105
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