TY JOUR TI TO THE QUESTIONS ABOUT THE THERMODINAMIC CHARACTERUCTICS OF THE SORPTION OF METAL IONS ON MINERAL MATERIALS KW sorption KW sand KW thermodynamic KW metal ions KW mineral materials JO Modern Technologies and Scientific and Technological Progress AU Yakovleva, A.A. AU Nguen, C.T. PY 2022 IS 2022 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»