ABSTRACT
Biological reactor geometry, biofilm distribution, mode of operation and substrate distribution parameters are important criteria in defining what type of biological reactor a system is (Moser, 1988), yet description of the physical system is useful. Initial concepts for bioreactor definition of a waste site are influenced by how liquid flow is influenced by the site’s solid media, characterization of the soil and wastes and development of mass transfer parameters and their relationships for this unique system. Though information is lacking for validation of these concepts in any great detail, a careful comparison with other reactors such as those previously discussed, and the use of data from studies of waste sites, can allow development of simplified but efficient characterization.
