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
– FeCl36H2O (Komponent-Reaktiv company, Russian Federation).