The sorption characteristics of the most common heavy metals; cadmium, cobalt, nickel, and lead by two different natural soils; sandy and sandy loam soils have been investigated. These heavy metals are found in the effluent of almost every industry and hence were selected for the study. The soil used in the present experiment was taken from the surface layer (0-30 cm depth) of the El-Hammam region, Matrouh Governorate (sandy loam soil), and Nubaria region for sandy soil. The synthetic industrial wastewater was prepared from the stock solution of heavy metals compatible with industrial wastewater of the Paper industry wastewater company and Food industry wastewater companies. To study and compare the sorption of heavy metals on sorbent materials, the sorption data were fitted to some sorption isotherm models using the software IsoFit such as Linear, Freundlich, Langmuir, Langmuir-Freundlich, Generalized Langmuir-Freundlich, and proposed new models. Measured and simulated data were compared statistically for evaluating model reliability. it was observed that both soils sorbed about 63 to 85% (sandy soil) and about 75 to 87% (sandy loam soil) of the initial concentration of the heavy metal ions from the aqueous solution. The sorption of heavy metals is more pronounced in sandy loam than in sandy soil. The sorption percentage was decreased by increasing the initial concentration. The average sorption percentage overall initial concentrations were 74.18 (Cd), 66.17 (Co), 80.25 (Ni), and 79.78%(Pb) for sandy soil and 80.84(Cd), 77.50 (Co), 84.96 (Ni), and 86.79%(Pb) for sandy loam soil. In the present study,.....