TY CONF TI STUDY OF SORPTION EXTRACTION OF COPPER IONS FROM MODEL WASTE WATERS BY NOVEL FERRITE BASED SORBENTS KW sorbents KW magnesium ferrite KW zinc ferrite KW heavy metals KW copper ions KW sorption KW water treatment KW waste waters KW environment protection JO CIRCULAR ECONOMY FOR THE PURPOSE OF SUSTAINABLE DEVELOPMENT OF INDUSTRIES AND TERRITORIES AU Molchanova, O.N. AU Novikova, L.A. AU Tomina, E.V. PY 2024 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov