Table 1.

Characteristics of the membrane used in the experimental test module.

Manufacturer	Alfa Laval (Denmark)
Product denomination	NF99
Type	Thin-film composite on polyester
Composition	Polyamide
Membrane surface area (m2)	0.003
Maximum pressure (N m−2)	55 × 105
MgSO4 rejection (%) (2 kg m−3, 9·105 N m−2)	≥98
NaCl rejection (%)	>90
pH range	3−10
Temperature range (°C)	5–50