The main aim of this study is to treat the presence of phosphate in groundwater. Twelve groundwater samples were selected and collected from the Abu Minqar wells, El-Farafra oasis, Egypt. Physic-chemical parameters as EC, pH, and TDS is measured. Major ions as Na + , Mg ++ , Ca ++ , K + , Cl -, SO4 --and HCO3 -, and minor ions as Fe ++ , Mn ++ , and PO₄ ---is determined. The obtained results show that the concentration of these ions in groundwater reflects water-bearing sediments. Treatment of groundwater contaminated with phosphate includes purification steps, which can be difficult to introduce to rural regions where sophisticated applications are not feasible with a technological and financial framework. The use of different local abundance adsorbents in these areas can be an option. In this research, glauconite, as a natural geological material adsorbent, is used to remove phosphate from groundwater. Combined impacts on the operating parameters, including initial concentration, adsorbent dose, and contact time, were investigated. At a contact period time of 50 min, the maximum phosphate adsorption (89.1% removal and 12.82 mg/g) was achieved at an initial phosphate concentration of 50 mg/L and a glauconite dose of 0.1 g. The experimental data were revealed that Langmuir and Temkin Isotherms described the removal process, and the pseudo-second-order kinetic model fits well the removal process, with a correlation value of R 2 = 0.99. Moreover, the results conducted that glauconite material could potentially be applied to remove phosphate from groundwater.