Abstarct: In this research, natural polymorphous of aluminum silicates, named as Andalusite, Kyanite and Sillimanite are utilized as nanoadsorbents for dye and heavy mextal wastewater treatment. In order to investigate physical and chemical characterization of the adsorbents, different analyses have been used, such as: SEM, FT-IR, XRD and XRF. The results of SEM analysis proved that the particle size of adsorbents was in nano range. XRD and XRF analyses showed that the major components were Al2O3, SiO2 and Fe2O3. According to FT-IR analysis, presence of hydroxyl (OH) as the major functional group which is responsible for adsorption of pollutants, was obvious. After the characterization step, nanoadsorbents were used for removal of Disperse Red 177 and Disperse Blue 60 dyes from synthetic solutions in a batch system, considering the effects of pH, adsorbent dosage, initial dye concentration and temperature. The results showed that the adsorption efficiency for dye removal was more than 90 %. The comparison of three adsorbents efficiency for adsorption of Disperse Red 177 and Disperse Blue 60 dyes was as: Andalusite > Sillimanite > Kyanite and Sillimanite > Kyanite > Andalusite, respectively. The adsorption mechanism was studied isothermally and kinetically. Results confirmed that the adsorption of Disperse Red 177 dye by Kyanite and Sillimanite nanoadsorbents followed Temkin isotherm but for Andalusite nanoadsorbent, it obeys Freundlich isotherm. Also the adsorption of Disperse Blue 60 dye using nanoadsorbents of Kyanite and Sillimanite, followed Freundlich isotherm while for Andalusite nanoadsorbent, Temkin isotherm had a better fitness. The kinetic of adsorption could be explained by pseudo-second order kinetic model. Also thermodynamic investigation proved the spontaneous and exothermic nature of the adsorption process and low randomness at solid/solution interface. Next objective was the removal of lead¬¬¬ (II) ion from synthetic solutions in a batch system, using same nanoadsorbents. Major factors which influence the treatment process such as pH, adsorbent mass, mextal concentration and temperature were took into account. The adsorption process was studied isothermally and kinetically as well. Results indicated that the adsorption best happened at pH 6 and the adsorbents’ efficiency was more than 90 %. The removal of Pb+2 using Andalusite, Kyanite and Sillimanite nanoadsorbents, followed Freundlich isotherm and pseudo-second order kinetic model. The process was spontaneous and exothermic, having negligible effect of randomness at solid/solution interface.