This study illustrates, and compares the results of the removal of phosphate ions from aqueous solutions by using substances that have affinity to these ions, i.e., these ions have relatively a high adsorbing tendency toward these substances. Three different adsorbing substances were used, they are alumina, synthesized gatite, and hydrotalcite (abbreviation: HT). The results showed that chemical equilibrium was achieved quickly in the case of HT. Regarding the relative adsorbing ability of these three substances toward phosphate, and its removal from aqueous solutions, it was found that both synthesized gatite, and ignited HT at 500°C were both effective. The removal of phosphate ions was maximum at pH=5. Ionic strength showed a positive effect on the adsorption efficiency. The maximum adsorbing ability of these two adsorbing materials was about 150 mg PO3 -4-P per gram of the adsorbing HT; whereas the minimum efficiency was for aluminum oxide.