Sampling and pre-treatment
A sample of 30 1 was collected from the wastewaters
generated in a fish meal factory located in
Talcahuano, Chile. The sample was taken directly
from the effluent generated during the fish meal
production, i.e. before mixing it with the cooling
waters from the overall process, for its higher
protein content and lower flow rate make it easier
to handle at industrial scale.
The effluent sample was filtrated through a
battery of Omnifilter MF cartridges of pore sizes
80,20 and 5 l.trn. The microfiltrated effluent was
kept in the refrigerator at 4°C and it was brought
to the ambient temperature before being processed
by NF.