Table 1.

Water permeability coefficients obtained at the beginning and end of experiments for the different membrane

	Membranes
	GR60PP	GR80PP	GR90PP
Awo (m s−1) (initial)	6.69 × 10−8	5.38 × 10−8	5.06 × 10−8
Awf (m s−1) (final)	5.71 × 10−8	4.29 × 10−8	4.83 × 10−8
fw (%)	14.75	20.18	4.52