Abstract
The removal of toxic materials in municipal solid waste (MSW) can be carried out within both bioreactors and constructed wetlands. In this study, the microbial community was analysed to monitor populations related to leachate. Wetland soil samples of two landfill sites were analysed and the microbial communities were compared during organic matter removal processes. The extracted DNA was amplified using FAM63F and HEX518R primers and T‐RFLP analysis was carried on with AluI digested terminal fragments. The bacterial populations of the wetland soil from Bury and Beccles landfill sites were absolutely dissimilar in the beginning of the treatment processes. But after four weeks of treatment the similarity was 45%. These community shifts can explain the effect of leachate on bacterial population. The T‐RFLP electropherograms indicated that the bacterial population of the bioreactor was very similar to the constructed wetland’s population in recent samples. The similarity within both sites might increase as the treatment process continues.
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