WWW microbiology

What occurs in the organisation of biomass?

• complex heterogeneous structures

• floc structure and shape determines how successfully the solids phase separate from the liquid phase in secondary clarifier

• ultimately determines success of the process

What are flocs made up of?

• filamentous matrix

• microcolonies of bacteria

• inorganic particules

• all embedded in gel-like exocellular polymeric substances

What are the factors affecting floc formation?

What problems can come from the microbes in WWW?

• odours

• bulking and foaming

• caused by proliferation of filamentous bacteria

• bulking: distinguished by filamentous bacteria extending out from floc surface and participating in interfloc bridging

• foaming: development of a stable foam on the surface of aeration tanks