Coagulation and flocculation study of iron ore fines

A comparative study of the flocculation and coagulation response of an iron ore fines suspension has been carried out, and the extent of flocculation has been assessed by measurement of electrophoretic mobility, supernatant c larity, and settling rate. Of the several commercial flocculants and polyel ectrolyte studied, the combination of medium molecular weight anionic flocc ulants Magnafloc 1011 and Rishfloc 258 (1:1), and coagulant aluminum nitrat e was most effective in terms of enhancing settling rate and supernatant cl arity.