Identification and biotransformation of lignin compounds during co-composting of sewage sludge-palm tree waste using pyrolysis-GC/MS - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue International Biodeterioration and Biodegradation Année : 2014

Identification and biotransformation of lignin compounds during co-composting of sewage sludge-palm tree waste using pyrolysis-GC/MS

Résumé

The biotransformation of lignin components during co-composting of sewage sludge activated with palm tree waste was studied for six months using Py-GC-MS. Two main groups of compounds were distinguished. The first includes 7 compounds which occurred during the co-composting process listed here in decreasing order of abundance: toluene, 2,4-dimethylbenzene, ethylbenzene, styrene, 1-ethyl-2- methylbenzene, 4-methylphenol and 2-methylnaphthalene. The reduction of their concentrations during the process is due to metabolization and biotransformation into other compounds. A second group of 4 components showed concentrations that increased with co-composting time: phenol, benzofuran, ethylmethoxyphenol and dimethoxyphenol. These lignin constituents are probably released parallel with lignin degradation to become incorporated into humic substances.
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Dates et versions

hal-01054221 , version 1 (05-08-2014)

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El Fels Loubna, Laurent Lemée, André Ambles, M. Hafidi. Identification and biotransformation of lignin compounds during co-composting of sewage sludge-palm tree waste using pyrolysis-GC/MS. International Biodeterioration and Biodegradation, 2014, 92, pp.26-35. ⟨10.1016/j.ibiod.2014.04.001⟩. ⟨hal-01054221⟩
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