In addition, the 2nd stage DAF provided tertiary effluent
polishing. The performance data of the first
stage DAF unit treating slaughterhouse wastewater
after screening is shown in Table 3. It can be
seen that such a system is effective in markedly
reducing the levels of fat/oil/grease (FOG) and
suspended solids. The low percentage removal of
SCOD, BOD5, phosphorous, and TSS reflect its largely soluble nature.