The data given above bring to the conclusion, that the PEO
Sibfloc-718 together with PAA cationic flocculants can be efficiently
used for harvesting biomass of C. vulgaris GKV1.
Sedimentation efficiency of about 80% was achieved in 120 min
for both flocculants. Combined use of ferric chloride and polymeric
cationic flocculant is shown to allow significant increase in biomass
sedimentation rate up to 80% in the first five minutes.
Furthermore, partial addition of flocculated biomass could serve
as a ballast agent, where the flocculation efficiency would be up
to 90% in the first 5 min. In this case we can speak about reducing
the dosage of flocculant, at least, two times.