Abstract
Cost-effective and eco-friendly methods of novel sorbentproductionbased on a Ti, Ca and Mg phosphates have been carried out. The solid precursors were ammonium titanyl sulfate and calcined dolomite, which were used as titanium, calcium, and magnesium sources. The heterogeneous synthesis procedure in-cludes stepwise interaction between solid precursors and liquid phosphorus-containing agents. In mech-anochemical way to obtain the sorbent was usedonly solid reactants. Synthesiswas carriedout in a plan-etary ball mill. The final product wasa composite material, whichconsistsof the following components: TiO(OH)H2PO4·H2O, Ti(HPO4)2·H2O, CaHPO4·2H2O, MgНPO4·3H2O, and NH4MgPO4·6H2O. The new sorbent shows high sorption ability towards radionuclides in multicomponent liquid radioactive waste (LRW) sys-tems. Purification effect is based on both precipitation and ion exchange mechanism.
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