Grayvoronskaya I. Providing of ecological safety by the use of metallurgical slags in the water purification sorption technologies.

This thesis is dedicated to a solution of problems of identifying of industrial wastes resource value for environmentally safe utilization in production of organic compounds sorbents for wastewater treatment. The elemental, oxide, mineralogical and radionuclide composition of metallurgical slags is determined. The class of radiation danger of researched industrial waste is carried out. The principles оf metallurgical slag fractions sorption activity determination are substantiated theoretically and experimentally. Conditions of chemical activation of slag, type of functional groups, charge and morphological characteristics of sorbent's surface are defined. The dependences of quantitative indicators from adsorption process parameters which have the implication for slag sorbents utilization in production environment are determined. The mechanism and kinetic properties are determined and adsorption equations are derived. The absence of desorption of absorbed substances is proved. The designs with resource saving effect which allow both to extend the raw materials base for the production of sorbents and to improve the environmental situation of the region through the prevention of dumping at the introduction of water recycling enterprises are presented.