Development of a Cost-Effective Polyamide 6-Based Composite Ceramic Membrane for the Treatment of Cadmium-Contaminated Wastewater

Table 3 Average separation efficiency and permeate flux results

Cd(II) concentration, ppm	25		50		100
Parameter	Flux, L h⁻¹ m⁻²	Rejection efficiency, %	Flux, L h⁻¹ m⁻²	Rejection efficiency, %	Flux, L h⁻¹ m⁻²	Rejection efficiency, %
The mean value for M1	487.08 ± 24.32	71.25 ± 0.21	343.65 ± 54.89	87.60 ± 0.37	286.86 ± 30.44	94.62 ± 0.05
The mean value for M2	395.86 ± 53.87	90.95 ± 1.01	328.40 ± 16.56	96.57 ± 0.52	229.09 ± 37.86	98.69 ± 0.11