Composition of the saline solutions used.

Mineralization	H2O	NaCl	CaCl2	MgCl2·6H2O	Na2SO4
6666 mg L−1	1000 mL	6.191 g	0.241 g	0.3514 g	0.0696 g
19 334 mg L−1	1000 mL	17.457 g	1.143 g	0.863 g	0
30 000 mg L−1	1000 mL	27.306 g	1.11 g	3.833 g	0
50 000 mg L−1	1000 mL	42.758 g	2.825 g	8.917 g	0