Przemysl Chemiczny, Vol.94, No.3, 374-377, 2015
Effect of the coagulant type and flocculation time on the efficiency of purification of pig slurry filtrate
Three corn. coagulants were used for purifn. of pig slurry filtrate by flocculation at room temp. for 45 min. The color intensity, turbidity, chem. O-2 demand and P content were detd. by std. methods. The Fe-2(SO4)(3) and FeCl3,-based co-agulants were more efficient than the Al-based one. The optimum flocculation time was 5-15 min.