The sorption properties of organomineral composite sorbents have been investigated by ICP-MS method. The diatomite of the Jradzor deposit and bentonite of the Sarigyuh deposit (Armenia) were used as inorganic constituents. Diatomite serves as a structure-forming component and provides mass transfer due to its high porosity (V = 2.0 cm3/g) and large pore sizes (150–200 nm). Bentonite is responsible for the functionality of the sorbents. The organic component is also responsible for the functionality of the obtained sorbents. Paper pretreated with acids (nitric and phosphoric) was used as an organic component. A synthetic solution containing cations of heavy metals was used as an object of study. The experiments were carried out in static mode on a Jar-Test device.

The influence of the acidic treatment of peat on its sorption properties has been studied by means of optical emission spectrometry with inductively coupled plasma (ICP-OES) and pH-metry methods. Untreated peat of the Vardenis deposit, Armenia, and acid-activated peat were used as sorption materials. As an activation process, we consider preferably the elimination of metal ions captured on the peat surface. During this active sorption groups (particularly acetic) are released from the surface and such acidic groups together with other functional groups begin to act according to the cation exchange mechanism.

Continuing previous similar research, the ability of sulfates of elements of the second group – magnesium, calcium and zinc, to produce peroxosolvates, the methods for their preparation, as well as their properties have been studied. It has been shown that these sulfates are able to produce peroxosolvates with different molar ratios: MgSO4‧H2O2, CaSO4‧0.04H2O2, ZnSO4‧0.05H2O2. The authenticity, composition and nature of the obtained peroxosolvates have been elucidated by the methods of X-ray and IR spectroscopy. Quantitative data on the decomposition of hydrogen peroxide in dry peroxosolvates of magnesium and zinc sulfates were calculated.