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Two moving bed biofilm reactors (MBBRs) were operated to treat raw (untreated) and 30mg/L ozone-treated oil sands process-affected water (OSPW). After 210days, the MBBR process showed 18.3% of acid-extractable fraction (AEF) and 34.8% of naphthenic acids (NAs) removal, while the ozonation combined MBBR process showed higher removal of AEF (41.0%) and NAs (78.8%). Biodegradation of raw and ozone treated...
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