Water quality assessment and reuse potential of groundwater combined saline solution for irrigation

Abstract This study aims to evaluate the water quality and reuse potential of groundwater combined with a saline solution for irrigation. The brine dilution process was done by adding determining total dissolved salts (TDS) value according irrigation criteria then calculating amount be added using law concentrations obtain mixture, as TDS decreased from 4922 3810 mg/l 2587 2200 mg/l, respectively. assessment aimed determine suitability irrigation, indices used were sodium adsorption ratio, magnesium hazard ratio percentage, residual carbonate, permeability index, Kelly index. results indicated that after mixing is suitable USSL diagram post-mixing at two stations, Touggourt El-Oued, showed falls in C4–S1 group (extremely high salinity low sodium), El-Oued C4–S2 (very medium sodium).