Table 1.

Statistical analysis for flocculating activity with different cation treatments added with UPMB13 bioflocculant.

Cations	Flocculating activity (%)	P  value*	Homogenous subset**
NaCl	78.5 ± 1.95	P ≤ 0.05	c
CaCl2	87.2 ± 0.53	P > 0.05	d
MgCl2	85.2 ± 2.19	P > 0.05	d
AlCl3	62.5 ± 3.55	P ≤ 0.05	b
FeSO4	34.8 ± 6.20	P ≤ 0.05	a

^∗The mean difference between groups is significant at 0.05 level.

^∗∗Homogenous subset is in ascending manner from lowest to the highest mean value.