Rotating Biological Contactors RBCs

Aerobic systems including trickling filters and rotating biological contactors (RBC) are operated in a nonflooded mode to ensure adequate oxygen supply. Other aerobic, anoxic, and anaerobic systems employ flooded reactors. The most common systems are packed beds (anaerobic trickling filter) and fluidized or expanded bed systems. 

Rotating biological contactor (RBC) in biological waste treatment,... 

A rotating biological contactor (RBC) is another example of a fixed film bioreactor. An RBC consists of a series of disks mounted on ahorizontal shaft that rotate slowly in the wastewater (see Figure 11.6). The disks are submerged approximately 40% into... 

In recent years citric acid has been produced on the laboratory scale using A. niger immobilized on calcium alginate gel, polyacrylamide gel, polyurethane foam, and disks of rotating biological contactors (RBC). (see [53,54] for related references). For economic reasons, it is impractical to produce citric acid on an industrial scale using the immobiUzed cell system at the present time. 

The other biofilm systems such as the rotating biological contactor (RBC) and the aerobic upflow sludge bed reactor (AUSB) shown in Fig. 2 could possibly be applied for MTBE removal, and may posses some unique advantages. However, to our knowledge these reactors have never been appHed for MTBE removal so far. 

Table 4 Ranking of different reactor types suitable for MTBE biodegradation in terms of typical process characteristics. The reactors shown are the fluidized hed reactor (FBR), packed bed reactor (PBR), rotating biological contactor (RBC), membrane bioreactor and the aerobic upflow sludge bed reactor (AUSB)...

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