COMPARATIVE CHARACTERISTICS OF PHYSICOCHEMICAL PROPERTIES OF NATURAL AND SYNTHESIZED SILICA-CONTAINING MINERALS USED IN WATER TREATMENT PROCESSES

The study presents a comparative analysis of the physicochemical properties of natural and synthesized silica-containing minerals used or potentially suitable for water treatment and purification. The researchers have investigated sorbents based on opoka and diatomite, as well as silicon dioxides obtained from nepheline from the Murmansk region. They have determined chemical composition of the synthesized samples, performed X-ray phase analysis, and studied the surface-structural and acid-base properties of the sample surface. The results have proved that opoka-based filter materials used in water treatment retain sorption properties and are applicable for wastewater treatment and phytoremediation of disturbed areas in the Arctic zone of the Russian Federation.

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