Microbial community structure associated with the high loading anaerobic codigestion of olive mill and abattoir wastewaters

•The anaerobic digestion of olive mill and abattoir wastewaters was investigated.•Effects of temperature and loading on the microbial structure were examined.•PCR-SSCP showed significant dynamic of both bacteria and archaea.•The high COD removal and biogas yield were achieved at 55°C.•Methanobacteri...

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