Environmental Engineering Reference
In-Depth Information
5.1 Four trophic groups involved in anaerobic processes (adapted
from Colleran, 1991a).
5.2 Microbiology
Four different trophic groups are currently recognised in anaerobic
processes (see Fig. 5.1). The coordinated activity of these trophic groups
as a whole ensures stability.
5.2.1 Acidogenic bacteria
Known as anaerobic acidogenic bacteria, this group consists of fermentative
and hydrolytic bacteria. The hydrolytic bacteria hydrolyse (i.e. break down
polymers to monomers; make soluble material of particulate material) and
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