This
is important especially with feed that varies in properties daily, if
not hourly, in the wastewater treatment plant. Of course, different
types of flocculants, different dosages as well as different concentrations
from the same polymer can be tested. Unfortunately, this
represents only a very ‘‘crude” or ‘‘rough” test as the in-situ floc
size and characteristics in the separation pool of the centrifuge
may be very much different from those that have been realized
from the laboratory jar test