Environmental Engineering Reference
In-Depth Information
5.1 Four trophic groups involved in anaerobic processes (adapted
from Colleran, 1991a).
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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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