The Development of Environmentally Safe Lithification Technology for Liquid Salt Concentrates From Thermal Power Plants

Abstract

The paper presents the results of the development of environmentally safe lithification technology for liquid salt concentrates from water treatment facilities of thermal power plants. Sodium polyacrylate has been proposed as the basic moisture-absorbing component being a part of the polycomponent sorbent, used in the liquid salt concentrates lithification. Optimal mixtures of a multicomponent sorbent containing both sorbents and astringent mineral components have been developed. The optimal ratio of sodium polyacrylate and liquid salt concentrate is 1:40 (in weight parts). The toxicity determination of the produced samples by biotesting revealed the possibility of manufacturing safe solid product of 5th hazard class, which can be used as technical reclamation soil of the disturbed lands.