Flocculation efficiency of cationic potato starch in the presence of coagulants
Dorota Ziółkowska, Alexander Shyichuk, Piotr Cysewski, Agnieszka Organiściak – Division of General Chemistry, Faculty of Chemical Technology and Engineering, University of Technology and Live Sciences, Bydgoszcz

Please cited as: CHE MIK 2011, 65, 4, 309-314

The work contains experimental data on flocculation abilities of cationized potato starch applied together with ferric and aluminum coagulants. The sedimentation efficiency for model kaolin suspensions has been determined with nephelometric method. It has been stated that modified starch used together with coagulant accelerates much more effectively the clarification of mineral suspension comparing to the flocculant or the coagulant used separately. Meantime, overdosage of the coagulant (both ferric and aluminum one) leads to decrease of flocculation efficiency of cationized starch.

Keywords: suspension of kaolin, cationic starch, ferric coagulant, coagulant aluminum