... (Goto et al., 1997), ozonation (Yasui et al., 1997), hot alkali treatment (Suzuki and Inagaki, 1994),- 80 -biodegradable method by thermophilic bacteria (Hasegawa et al.,1997; Imaoka et al.,1998; ... organic carbon (DOC) concentration and Total organic carbon (TOC) in liquid samples weredetermined by a SHIMADZU model TOC-5000 analyzer. BOD5, MLSS and MLVSS were determined accordingto Standard ... this readily degradable BOD5 as substrate by active (survival) biomass. After 24 hours, BOD5concentrations in both operating conditions decreased to 1200 mg/L. It was considered that a balance...