Research on the improvement and start-up of anaerobic baffled reactor at normal temperatures

To improve the disposal effect and stability of traditional anaerobic baffled reactor, the first and fourth compartments were increased.Started ABR by decreasing HRT and increasing organic load at normal temperature (18~32 ℃), it turned out that load was maintained at 0.5~0.55 kg/(m³·d) in the first stage of start-up period, then it was increased gradually in the second and third stages, when it reached 1.8 kg/(m³·d), the removal rate of COD was above 85.2 %.Advanced reactor showed a good surge withstand capability, this meant that starting ABR with loworganic loading at normal temperature is feasible.