TY JOUR TI SOME KINETIC MODELS OF THE SORPTION IRON (III) IONS ON THE SURFACE OF RIVER SAND FROM VIETNAM KW sorption KW river sand KW kinetic models JO Modern Technologies and Scientific and Technological Progress AU Yakovleva, A.A. AU Nguen, C.T. AU Nguen, T.H. PY 2020 IS 2020 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»