The use of metallurgical slag as a sorbent for surfactants

Abstract

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 specific surfaces of slag sorbents were determined. The principles оf metallurgical slag fractions sorption activity determination are substantiated theoretically and experimentally. The possibility of the using of slags with the main diopside mineral as sorbents for the water purification has been shown. The slag sorption activity is caused by high content of diopside in the amorphous state. The possibility of slag sorption of the organic substances was shown. According to chemical composition and radiation characteristics slag may be used as technical material. The display of sorptive activity of metallurgical slag is proved. Sorptive properties are caused by the presence of amorphous condition of the substance. The possibility of slag’s utilization in water sorption treatment in technological cycles was determined. A rational counterflow-stepped adsorption scheme of periodic action is proposed for sewage treatment at the level of high concentrations of surfactants. 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.