The foam fractionation system represents a process for
removing particles and heterotrophic bacteria and helps reduce
the accumulation of wastewater in RAS systems. For removal of
heterotrophic bacteria, the efficiency of SKIM is not related to the
operation time or to particle size. Nevertheless, efficiency of the
system in removing these particles is influenced by the size of the
particle. A higher removal velocity was recorded for the 60 mm and >1.2 mm in size, which represent the lower
percentage of total solid compositions in the RAS water studied.