TY CONF TI CARBON SORBENTS IN THE PROCESSES OF WASTEWATERS TREATMENT FROM TOXICANTS SLUDGE FOR PURIFICATION OF WATER FROM COPPER IONS KW sewage sludge KW carbon sorbents KW sorption KW wastewaters treatment KW heavy metals KW ecology JO TECHNOLOGIES IN BIOECONOMICS: INNOVATIONS AND CHALLENGES IN THE 21ST CENTURY AU Molchanova, A.N. AU Novikova, L.A. AU Tomina, E.V. AU Zhuzhukin, K.V. PY 2025 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov