Abstract
The impact of o-cresol on the degradation of municipal refuse from a landfill site in the west of Scotland, was investigated by the use of laboratory models. o-Cresol was anaerobically degraded by a microbial population enriched and isolated from refuse. Physicochemical processes accounted for <30% removal over 85 days. Batch culture studies demonstrated the anaerobic mineralisation of o-cresol (≤1 mmol dm -3 ) to methane. The rate of o-cresol attenuation increased with the frequency of o-cresol supplementation. The study acclimatisation showed that 18-49 days were required for initial acclimatisation of an o-cresol degrading microbial association. The initial presence of phenol also induced o-cresol degradation. Leachate recirculation promoted both the production of methane and o-cresol mineralisation.
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