2.2. Flocculation experiments
2.2.1. Description of the flocculants
As PAA-based flocculants were used non-ionic Superfloc N-300, anionic Superfloc A-100, cationic Superfloc C-492 (all three manufactured by KEMIRA), as PEO-based flocculants – cationic Sibfloc – 718 (manufactured by Environmental Chemistry research and production company, Russian Federation), and as inorganic coagulant – FeCl3·6H2O (Komponent-Reaktiv company, Russian Federation).