FIELD: biotechnology, in particular methods for biomass flocculation from suspending media.
SUBSTANCE: claimed method includes addition the first cationic polymer material into suspending medium, wherein said material has intrinsic viscosity not more than 2 dl/g, and simultaneous or subsequent addition of the second cationic or substantially non-ionic polymer material into suspending medium, wherein said material has intrinsic viscosity of at least 4 dl/g. Said dosage provides optimum characteristics for biomass flocculation. Method of present invention makes it possible to obtain flakes with increased endurance, and as a result to apply various isolation methods including those based on mechanical flake agitation.
EFFECT: improved method for biomass flocculation from suspending media.
15 cl, 4 tbl, 6 ex
