As aquaculture becomes more intensive, farms need reliable ways to protect water quality, reduce water use, and manage waste. Biological filtration is one of the core technologies that makes recirculating aquaculture systems possible. Estimated read time: 8 minutes |...
Figure 1 – The bacterial film that coats each bead contains the nitrifying bacterial population. Heterotrophic bacteria also form a thin biofilm layer on each bead. The nitrifying bacteria compete with the heterotrophic bacteria for space. Aerobic fixed-film...
Once favorable water quality is established, the rate of nitrification in a biofilter is largely determined by the amount of nitrifying bacteria present in the biofilm. In bead filters, the biofilm is often dominated by heterotrophic bacteria, which grow quickly on...
