Temporary read-only version. The degremont® Water Handbook is temporarily available as a static website: account creation, login, search and bookmarks are unavailable.Temporary read-only version: account, search and bookmarks unavailable.

biological treatment

Reading time:

The following must be taken into account when determining the proper biological treatment:

  • the effluent’s biodegradability (COD/BOD ratio, beware when this ratio exceeds 3);
  • concentration levels of COD, BOD, TKN and P, SS;
  • salinity - sudden fluctuations can adversely affect biological treatment efficiency.

All techniques featured in Biological processes and Methane fermentation apply; however, the optimum application range for these different technologies is summarised in the diagram provided in figure 2:

various biological processes
Figure 2. Scope of the application of the various biological processes
read more :
Biofor, Cyclor, Meteor, Ultrafor, Industrial effluent treatment, Biological processes, Methane fermentation, Activated sludge
< primary treatment
tertiary treatment >