Table 4.

Correlation between mean turbidity values of source water and mean flow rates of HWTS devices during filter run.

Devices	Environmental water samples (correlation coefficient: r)
	SWL		SWH		GWL		GWH
	R	p	r	P	r	P	R	p
BSF—standard	−0.376	0.0000	0.805	0.0000	0.308	0.0000	0.419	0.0000
BSF—zeolite	0.715	0.0000	0.549	0.0000	−0.721	0.0000	0.329	0.0000
BF	0.0998	0.0000	−0.0573	0.0000	0.0884	0.0000	0.745	0.0000
CCF	0.597	0.0000	0.295	0.0000	0.274	0.0000	0.398	0.0000
SIPP	0.157	0.0000	0.572	0.0000	−0.208	0.0000	−0.0300	0.0000

r: correlation, p < 0.05.