| Titre : |
Biodegradation of leather solid waste and manipulation of methanogens and chromium-resistant microorganisms |
| Type de document : |
texte imprimé |
| Auteurs : |
Caroline Borges Agustini, Auteur ; Wolmir Lourenço Neto, Auteur ; Guilherme P. S. Priebe, Auteur ; Marisa Costa, Auteur ; Mariliz Gutterres, Auteur |
| Année de publication : |
2017 |
| Article en page(s) : |
p. 7-15 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Biogaz
Cuirs et peaux -- Biodégradation
Cuirs et peaux -- Déchets -- Recyclage
Déchets -- Valorisation
Déchets industriels -- Recyclage
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
The final solid wastes generated by tanneries are usually separately disposed of in hazardous industrial landfills, which are characterized as places of waste confinement where the residues undergo undesired and uncontrolled biological treatment. The storage and corresponding evolution of the sludge has not yet focalized the attention of the scientific community. Apart from developing knowledge of the ecology and function of the microbial community in anaerobic digestion processes, it is necessary to control this biological process. The manipulation of strict anaerobic microorganisms is the limiting factor in their isolation due to their high sensitivity to oxygen; therefore, cultivation under anaerobic conditions is essential. This work presents an evaluation of biogas generation and quality. In addition, microbial biodegradation is carried out in bench bioreactors containing two main solid wastes from tanneries: wet-blue shavings and sludge from a tannery wastewater treatment plant (WWTP). We analyzed two storage conditions of the sludge: storage under ambient conditions and under refrigeration. Sludge kept at ambient conditions showed a significantly higher methane production; methane was only detected in vials containing high concentrations of microorganisms. The manipulation of microorganisms did not interrupt biodegradation. The isolation technique with vials proved to be appropriate for the quantification of methanogenic microorganisms in biodegradation tests, although it was not fully elucidated for their isolation. |
| Note de contenu : |
- MATERIALS AND METHODS : Bioreactor assembling - Biogas composition monitoring - Statistical analysis - Microbial collection and analysis
- RESULTS AND DISCUSSION : Biogas and methane production - Statistical results - Microbiological results |
| En ligne : |
https://drive.google.com/file/d/1sceXbIkeqzbHiY58k_0kIs9K846GK9kC/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27564 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXII, N° 1 (01/2017) . - p. 7-15
Aller sur edunet
Accueil
Biodegradation of leather solid waste and manipulation of methanogens and chromium-resistant microorganisms in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXII, N° 1 (01/2017)
