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. 2013 Spring;4(2):153–158.

Table 1.

Some parameters of the water used in the experiment

Parameter (ppm) Before treatment After Treatment
Dissolved Oxygen 7.8 ± 0.2 7.6 ± 0.1
Chemical Oxygen Demand 15.1 ± 0.1 16.2 ± 0.2
Suspended Solids 36.8 ± 1.2 40.1 ± 1.7
Calcium 126.0 ± 1.5 114.1 ± 1.1
Sodium 22.4 ± 0.8 19.7 ± 0.7
Chloride 16.0±1.5 18.0±1.4
Total Nitrogen 5.8 ± 0.2 6.8 ± 0.3
Hardness (CaCO3) 174.3 ± 3.1 168.2 ± 2.8
Temperature (oC) 11.5 ± 1 12 ± 0.7
pH 7.7 ± 0.1 7.7 ± 0.1