The chemical synthesis of Ca- and Mg-phosphate sorbents has been developing in order to satisfy the requirements for the wastewater purification. Currently there are different routes available for Ca- and Mg-phosphate preparation. These include direct precipitation from aqueous solutions, sol-gel procedures, hydrothermal synthesis, mechanochemical synthesis et al. The present work proposes the soft non-acidic method for preparing granular phosphate sorbents under standard conditions (25 °С, 101.3 kPa) by the surface treatment of thermally activated granular dolomite as a cheap source of Ca and Mg, with NaH2PO4, Na2HPO4 and Na3PO4 aqueous solutions as phosphating reagents. Such technology allows also to solve the environmental problem by using a green preparation method. The aim of this work was to investigate the effect of the reagents’ properties and contact time on the phase and chemical compositions, textural properties of the obtained sorbents and their effectiveness towards bivalent metal ions. According SEM, EDX and XRD data granular phosphate sorbents consist of a core of carbonate and phosphate or oxide-phosphate surface layer. The maximum phosphorus content was found in a sample obtained using NaH2PO4. It was established that the obtained sorbents removed up to 90-95% of Pb2+, Zn2+, Cu2+, Cd2+, Ni2+, Sr2+ and Co2+ from multicomponent aqueous solutions in dynamic mode (at initial concentrations of 5 mg∙L-1, linear velocity 10 m∙h-1). The metal ion retention by the phosphate sorbents is due to the chemisorption mechanism of the interaction between sorbents and metal ions solution. The differences in sorption behaviour could be explained by the chemical composition of the sorbent surface – mainly phosphate for NaH2PO4 and oxide-phosphate for Nа2НРО4 and Nа3РО4. The sorbent obtained using NaH2PO4 is most active toward all ions with the exception of Co2+ and Ni2+ ions. Though, the oxide sorbents were characterized by high capacity for Co2+ and Ni2+ ions and more low for Sr2+.