Table 1 Physico–chemical characteristics of brine TS7 pond (July 2009)

Physical parameters

 Temperature (°C)

34.0 ± 6.0

 pH

8.30 ± 0.7

 Densité

1.224 ± 0.006

 Turbidity (NTU)

45.1 ± 0.5

 Reduction potential (mV)

-38.6 ± 0.4

 Salinity (%)

28.43 ± 0.2

Major cations and anions (g/l)

 Na⁺

95.00 ± 0.95

 Mg²⁺

19.954 ± 0.098

 K⁺

5.780 ± 0.051

 Ca²⁺

0.260 ± 0.008

 Cl^-

188.54 ± 3.10

 SO₄ ^2-

28.65 ± 0.21

 HCO₃ ^-

0.451 ± 0.082

 C0₃ ^--

0.000