Polyman 254 Polyamine based coagulants are synthesized for colour removal, turbidity, and
organic compounds from dye wastewater. Polyamine based coagulants work better than alum alone.
The effects of polyamine coagulant, concentration, types, and pH on the removal efficiency of
coloured materials were investigated. Highly efficient colour removal was obtained by adding
polyamine as a coagulant at widely different pH ranges. Results indicate that the use of polyamine
coagulant is cost effective in dye wastewater treatment because it minimizes the amount of sludge
produced as the dosage of inorganic coagulant is highly reduced.