Commercial Scale Applications of Bioreactors in Chemical and Environmental Engineering

3 COMMERCIAL SCALE APPLICATIONS OF BIOREACTORS IN CHEMICAL AND ENVIRONMENTAL ENGINEERING 

Because activated sludge facilities have been utilized successfully for decades in the treatment of industrial wastewaters, and because of the similarity of the analysis of the peaformance of the constituent bioreactor to that for an individual CSTR operating with partial recycle of cells (see Section 13.2.4), we first consider how to develop steady state models of these bioreactors. We then proceed to matters related to the use of bioreactors for cultivation of animal and plant cells, including information pertinent to their susceptibility to damage in shear fields. We conclude with discussions of aspects of two interesting evolving 

1 Bioremediation of Wastewaters Secondary Treatment with Activated Sludge 

The varions contaminants present in wastewaters and their concentrations depend on the origin and history of the wastewater. There are two major categories of wastewaters industrial and domestic, the latter being more commonly referred to as sewage. Often, these two types of wastes are merged, as when the indnstrial wastes are discharged into domestic sewers. 

Another factor that is critical in the design, operation, and control of an activated sludge bioreactor is obtaining 

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Commercial Scale Applications of Bioreactors in Chemical and Environmental Engineering 497... 

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