Vf. Kurenkov et al., Color removal from aqueous solutions of humic substances in the presence of Praestol and aluminum sulfate, RUS J AP CH, 74(1), 2001, pp. 86-89
Color removal from aqueous solutions of humic substances by introducing Pra
estol (cationic coagulant) in combination with aluminum sulfate (flocculant
) was studied as a function of the coagulant and flocculant concentrations,
chemical composition of flocculant, its molecular weight, macromolecule co
nformation in solutions, pH, and the order and time of coagulant and floccu
lant introduction.