Table 1.
Typical ranges for the chemical composition and related parameters in wastewater influent obtained from the ASP flooding water treatment station (Daqing, China).
Fig 1.
Schematic of the ABR biological reactor used for remediation of the ASP flooding process water.
anaerobic zones (1–3); anoxic zones (4, 5); and aerobic zones (6, 7).
Fig 2.
Treatment efficiency of the modified ABR reactor for the remediation of ASP flooding wastewater.
(a) HPAM removal; (b) viscosity change; (c) surfactants removal; and (d) COD change.
Fig 3.
Removal efficiency of the ABR system for (a) Petroleum substances; and (b) suspended solids.
Fig 4.
Mean values (90 d) of pollutants and associated parameters in different zones of the ABR.
Table 2.
Main organic matter types in each zone.
Fig 5.
Distribution and comparison of bacteria from each zone of the ABR (communities < 1% are denoted as others).
(A) Phyla distribution; (B) class distribution; and (C) genus distribution.