Coagulation and Sedimentation of Concentrated Laterite Suspensions: Comparison of Hydrolyzing Salts in Presence of Grewia spp. Biopolymer

Table 2

Effect of pH on the critical coagulation concentration of laterite suspension 10 g/L.

	pH 5	pH 7
Ferric chloride (mg/L)	47.5	112.5
Alum (mg/L)	100	156.25