Anaerobic biodegradability of alkylbenzenes and phenol by landfill derived microorganisms

摘要: The objectives of this research were to evaluate the anaerobic biodegradability benzene, toluene, ethylbenzene, xylenes, phenol and p-cresol by microorganisms present in decomposing refuse study effects environmental conditions, pertinent landfills, on degradation derived microbial consortia. Microbial inocula from both landfills laboratory reactors. While toluene biodegradation was only measured with one inoculum, broad for measured. Cultures enriched then two samples conservation degradative activity against phenol. In enrichment, degrading maintained after 6 months, while decreased a second culture. Phenol enrichment cultures also exhibited other hydroxyl-substituted aromatics but not mono-chlorinated phenols. Cellulosic carbon soluble trace constituents extracted fresh stimulated enrichment. However, cellulosic inhibitory cultures. pH optima all between 6.5 7.0. Finally, high concentration acetate prevented efficient removal benzoate consequently inhibited degradation. Landfills shown be habitat harboring populations capable aromatics, suggesting that contaminant may maximized proper landfill management.