Reactor configurations, biological

Investigation of various biological reactor configurations revealed that a fixed-film reactor is compatible with the fungus. A rotating biological contactor was selected because this design is already in widespread commercial use and thus requires no further development. 

It is not only the properties of the compound in question that influence its behaviour but also the environmental and operational conditions it is subjected to (temperature, pressure, pH, redox conditions), as well as the particular configurations of the (biological) reactors (in particular, their partitioning into compartments featuring different conditions mainly aerobic, anoxic and anaerobic), SRT and, to variable extents, HRT. Moreover, in chemical processes, reagent... 

As a consequence of Equ. 6.4, the definition of growth rate /x in a CSTR at steady state is given by = D (Equ. 3.91). This fact is most important for practical application of the CSTR in microbial culture techniques. It means that this reactor configuration functions as a differential reactor (cf. Sect. 4.4.1), and it enables the direct measurement of a biological reaction rate (e.g., growth rate) without mathematical manipulation of the measurements. 

Numerous reactor configurations may be found in biological processes (6.13.18.19). These include ... 

The term fermentation is used to describe the biological transformation of chemicals. In its most generic application, a fermentor may be batch, continuous-stirred tank (chemostat), or continuous plug flow (immobilized cell). Most industrial fermentors are batch. Several configurations exist for these batch reactors to facilitate aeration. These include sparged tanks, horizontal fermentors, and biological towers. 

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